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We encourage you to perform a real-time search of NLEBeta
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1

Fixed target electroweak and hard scattering physics  

SciTech Connect (OSTI)

The possibilities for future physics and experiments involving weak and electromagnetic interactions, neutrino oscillations, general hard scattering and experiments involving nuclear targets were explored. The studies were limited to the physics accessible using fixed target experimentation. While some of the avenues explored turn out to be relatively unrewarding in the light of competition elsewhere in the world, there are a number of positive conclusions reached about experimentation in the energy range available to the Main Injector and Tevatron. Some of the experiments would benefit from the increased intensity available from the Tevatron utilizing the Main Injector, while some require this increase. Finally, some of the experiments would use the Main Injector low energy, high intensity extracted beams directly. A program of electroweak and hard scattering experiments at fixed target energies retains the potential for important contributions to physics. The key to major parts of this program would appear to be the existence of the Main Injector. 115 refs, 17 figs.

Brock, R. (Michigan State Univ., East Lansing, MI (USA)); Brown, C.N.; Montgomery, H.E. (Fermi National Accelerator Lab., Batavia, IL (USA)); Corcoran, M.D. (eds.) (Rice Univ., Houston, TX (USA))

1990-02-01T23:59:59.000Z

2

Fixed Target Beauty Physics Experimental Programs  

SciTech Connect (OSTI)

The current and near term future fixed target physics efforts in observing particles with open beauty are reviewed. This includes a compilation of the non-observation upper limits and the observation of both upsilon and b-states. A short discussion of the theoretical predictions for the hadro-produced beauty pairs is included. The major part of this review is devoted to the techniques and tricks employed, a survey of the current and proposed experiments. A personal summary of the experimental prospects concludes this report. 28 refs., 26 figs.

Garbincius, P.H.

1987-11-01T23:59:59.000Z

3

Future Fixed Target Facilities  

SciTech Connect (OSTI)

We review plans for future fixed target lepton- and hadron-scattering facilities, including the 12 GeV upgraded CEBAF accelerator at Jefferson Lab, neutrino beam facilities at Fermilab, and the antiproton PANDA facility at FAIR. We also briefly review recent theoretical developments which will aid in the interpretation of the data expected from these facilities.

Melnitchouk, Wolodymyr

2009-01-01T23:59:59.000Z

4

Spin physics and TMD studies at A Fixed-Target ExpeRiment at the LHC (AFTER@LHC)  

E-Print Network [OSTI]

We report on the opportunities for spin physics and Transverse-Momentum Dependent distribution (TMD) studies at a future multi-purpose fixed-target experiment using the proton or lead ion LHC beams extracted by a bent crystal. The LHC multi-TeV beams allow for the most energetic fixed-target experiments ever performed, opening new domains of particle and nuclear physics and complementing that of collider physics, in particular that of RHIC and the EIC projects. The luminosity achievable with AFTER@LHC using typical targets would surpass that of RHIC by more that 3 orders of magnitude in a similar energy region. In unpolarised proton-proton collisions, AFTER@LHC allows for measurements of TMDs such as the Boer-Mulders quark distributions, the distribution of unpolarised and linearly polarised gluons in unpolarised protons. Using the polarisation of hydrogen and nuclear targets, one can measure transverse single-spin asymmetries of quark and gluon sensitive probes, such as, respectively, Drell-Yan pair and quarkonium production. The fixed-target mode has the advantage to allow for measurements in the target-rapidity region, namely at large x^uparrow in the polarised nucleon. Overall, this allows for an ambitious spin program which we outline here.

J. P. Lansberg; M. Anselmino; R. Arnaldi; S. J. Brodsky; V. Chambert; W. den Dunnen; J. P. Didelez; B. Genolini; E. G. Ferreiro; F. Fleuret; Y. Gao; C. Hadjidakis; I. Hrvinacova; C. Lorce; L. Massacrier; R. Mikkelsen; C. Pisano; A. Rakotozafindrabe; P. Rosier; I. Schienbein; M. Schlegel; E. Scomparin; B. Trzeciak; U. I. Uggerhoj; R. Ulrich; Z. Yang

2014-10-08T23:59:59.000Z

5

Preparation of a primary argon beam for the CERN fixed target physics  

SciTech Connect (OSTI)

The fixed target experiment NA61 in the North Area of the Super Proton Synchrotron is studying phase transitions in strongly interacting matter. Up to now they used the primary beams available from the CERN accelerator complex (protons and lead ions) or fragmented beams created from the primary lead ion beam. To explore a wider range of energies and densities a request was made to provide primary argon and xenon beams. This paper describes the results of the setting up and 10 week test run of the Ar{sup 11+} beam from the 14.5 GHz ECR ion source and the linear accelerator (Linac3) at CERN.

Küchler, D., E-mail: detlef.kuchler@cern.ch; O’Neil, M.; Scrivens, R. [CERN, BE Department, 1211 Geneva 23 (Switzerland)] [CERN, BE Department, 1211 Geneva 23 (Switzerland); Thomae, R. [iThemba LABS, P.O. Box 722, Somerset West 7130 (South Africa)] [iThemba LABS, P.O. Box 722, Somerset West 7130 (South Africa)

2014-02-15T23:59:59.000Z

6

Fixed target facility at the SSC  

SciTech Connect (OSTI)

The question of whether a facility for fixed target physics should be provided at the SSC must be answered before the final technical design of the SSC can be completed, particularly if the eventual form of extraction would influence the magnet design. To this end, an enthusiastic group of experimentalists, theoreticians and accelerator specialists have studied this point. The accelerator physics issues were addressed by a group led by E. Colton whose report is contained in these proceedings. The physics addressable by fixed target was considered by many of the Physics area working groups and in particular by the Structure Function Group. This report is the summary of the working group which considered various SSC fixed target experiments and determined which types of beams and detectors would be required. 13 references, 5 figures.

Loken, S.C.; Morfin, J.G.

1985-01-01T23:59:59.000Z

7

Fixed target experiments at the Fermilab Tevatron  

E-Print Network [OSTI]

This paper presents a review of the study of Exclusive Central Production at a Center of Mass energy of $\\sqrt{s}=40$ GeV at the Fermilab Fixed Target program. In all reactions reviewed in this paper, protons with an energy of 800 GeV were extracted from the Tevatron accelerator at Fermilab and directed to a Liquid Hydrogen target. The states reviewed include $\\pi^+\\pi^-$, $K^0_s K^0_s$, $ K^0_sK^\\pm\\pi^\\mp$, $\\phi\\phi$ and $D^{*\\pm}$. Partial Wave Analysis results will be presented on the light states but only the cross section will be reviewed in the diffractive production of $D^{*\\pm}$

Gaston Gutierrez; Marco A. Reyes

2014-09-29T23:59:59.000Z

8

In celebration of the fixed target program with the Tevatron  

SciTech Connect (OSTI)

The Tevatron is the world's first large superconducting accelerator. With its construction, we gained the dual opportunities to advance the state of the art in accelerator technology with the machine itself and in particle physics with the experiments that became possible in a higher energy regime. There have been 43 experiments in the Tevatron fixed target program. Many of these are better described as experimental programs, each with a broad range of physics goals and results, and more than 100 collaborating physicists and engineers. The results of this program are three-fold: (1) new technologies in accelerators, beams and detectors which advanced the state of the art; (2) new experimental results published in the refereed physics journals; and (3) newly trained scientists who are both the next generation of particle physicists and an important part of the scientific, technical and educational backbone of the country as a whole. In this book they compile these results. There are sections from each experiment including what their physics goals and results were, what papers were published, and which students have received degrees. Summaries of these results from the program as a whole are quite interesting, but the physics results from this program are too broad to summarize globally. The most important of the results appear in later sections of this booklet.

Jeffrey A. Appel et al.

2001-12-28T23:59:59.000Z

9

AGS fixed target program with nuclear beams  

SciTech Connect (OSTI)

The recent approval of the beam transfer line from the Tandem Van de Graaf to the AGS signals the advent of a new era of Nuclear and Particle Physics at BNL. High Energy nuclear beams are expected to be available for experiments in 1986. I will discuss the direct link between the Tandems and the AGS. Two other proposed projects, the Relativistic Heavy Ion Collider and the Synchrotron Booster, are discussed in another presentation to this conference.

Foley, K.J.

1984-01-01T23:59:59.000Z

10

Hadron Production at Fixed Target Energies and Extensive Air Showers  

E-Print Network [OSTI]

NA61/SHINE is a fixed-target experiment to study hadron production in hadron-nucleus and nucleus-nucleus collisions at the CERN SPS. Due to the very good acceptance and particle identification in forward direction, NA61/SHINE is well suited for measuring particle production to improve the reliability of air shower simulations. Data with proton and pion beams have been taken in 2007 and 2009. First analysis results for the pion yield in proton-carbon interactions at 31 GeV will be shown and compared to predictions from models used in air shower simulations.

M. Unger; for the NA61/SHINE Collaboration

2010-12-12T23:59:59.000Z

11

Target Acquisition, Localization, and Surveillance using a Fixed-Wing Mini-UAV and Gimbaled Camera  

E-Print Network [OSTI]

Target Acquisition, Localization, and Surveillance using a Fixed-Wing Mini-UAV and Gimbaled Camera acquisition and continuous surveillance using fixed-wing UAVs is a difficult task due to the many degrees of freedom inherent in aircraft and gimbaled cameras. Mini-UAVs further complicate the problem by introducing

Goodrich, Michael A.

12

Theoretical framework to analyze searches for hidden light gauge bosons in electron scattering fixed target experiments  

E-Print Network [OSTI]

Motivated by anomalies in cosmic ray observations and by attempts to solve questions of the Standad Model of particle physics like the (g-2)_mu discrepancy, U(1) extensions of the Standard Model have been proposed in recent years. Such U(1) extensions allow for the interaction of Dark Matter by exchange of a photon-like massive force carrier \\gamma' not included in the Standard Model. In order to search for \\gamma' bosons various experimental programs have been started. One approach is the dedicated search at fixed-target experiments at modest energies as performed at MAMI or at the Jefferson Lab. In these experiments the process e(A,Z)->e(A,Z)l^+l^- is investigated and a search for a very narrow resonance in the invariant mass distribution of the l^+l^- pair is performed. In this work we analyze this process in terms of signal and background in order to describe existing data obtained by the A1 experiment at MAMI with the aim to give accurate predictions for exclusion limits in the \\gamma' parameter space. We present a detailed theoretical analysis of the cross sections entering in the description of such processes.

T. Beranek; H. Merkel; M. Vanderhaeghen

2013-03-11T23:59:59.000Z

13

High Transverse Momentum Direct Photon Production at Fermilab Fixed-Target Energies  

SciTech Connect (OSTI)

This thesis describes a study of the production of high transverse momentum direct photons and {pi}{sup 0} mesons by proton beams at 530 and 800 GeV/c and {pi}{sup -} beams at 515 GeV/c incident on beryllium, copper, and liquid hydrogen targets. The data were collected by Fermilab experiment E706 during the 1990 and 1991-92 fixed target runs. The apparatus included a large, finely segmented lead and liquid argon electromagnetic calorimeter and a charged particle spectrometer featuring silicon strip detectors in the target region and proportional wire chambers and drift tubes downstream of a large aperture analysis magnet. The inclusive cross sections are presented as functions of transverse momentum and rapidity. The measurements are compared with next-to-leading order perturbative QCD calculations and to results from previous experiments.

Apanasevich, Leonard; /Michigan State U.

2005-05-01T23:59:59.000Z

14

Studies of Transverse-Momentum-Dependent distributions with A Fixed-Target ExpeRiment using the LHC beams (AFTER@LHC)  

E-Print Network [OSTI]

We report on the studies of Transverse-Momentum-Dependent distributions (TMDs) at a future fixed-target experiment --AFTER@LHC-- using the $p^+$ or Pb ion LHC beams, which would be the most energetic fixed-target experiment ever performed. AFTER@LHC opens new domains of particle and nuclear physics by complementing collider-mode experiments, in particular those of RHIC and the EIC projects. Both with an extracted beam by a bent crystal or with an internal gas target, the luminosity achieved by AFTER@LHC surpasses that of RHIC by up to 3 orders of magnitude. With an unpolarised target, it allows for measurements of TMDs such as the Boer-Mulders quark distributions and the distribution of unpolarised and linearly polarised gluons in unpolarised protons. Using polarised targets, one can access the quark and gluon Sivers TMDs through single transverse-spin asymmetries in Drell-Yan and quarkonium production. In terms of kinematics, the fixed-target mode combined with a detector covering $\\eta_{\\rm lab} \\in [1,5]$ ...

Massacrier, L; Arnaldi, R; Brodsky, S J; Chambert, V; Dunnen, W den; Didelez, J P; Genolini, B; Ferreiro, E G; Fleuret, F; Gao, Y; Hadjidakis, C; Hrivnacova, I; Lansberg, J P; Lorcé, C; Mikkelsen, R; Pisano, C; Rakotozafindrabe, A; Rosier, P; Schienbein, I; Schlegel, M; Scomparin, E; Trzeciak, B; Uggerhoj, U I; Ulrich, R; Yang, Z

2015-01-01T23:59:59.000Z

15

Studies of Transverse-Momentum-Dependent distributions with A Fixed-Target ExpeRiment using the LHC beams (AFTER@LHC)  

E-Print Network [OSTI]

We report on the studies of Transverse-Momentum-Dependent distributions (TMDs) at a future fixed-target experiment --AFTER@LHC-- using the $p^+$ or Pb ion LHC beams, which would be the most energetic fixed-target experiment ever performed. AFTER@LHC opens new domains of particle and nuclear physics by complementing collider-mode experiments, in particular those of RHIC and the EIC projects. Both with an extracted beam by a bent crystal or with an internal gas target, the luminosity achieved by AFTER@LHC surpasses that of RHIC by up to 3 orders of magnitude. With an unpolarised target, it allows for measurements of TMDs such as the Boer-Mulders quark distributions and the distribution of unpolarised and linearly polarised gluons in unpolarised protons. Using polarised targets, one can access the quark and gluon Sivers TMDs through single transverse-spin asymmetries in Drell-Yan and quarkonium production. In terms of kinematics, the fixed-target mode combined with a detector covering $\\eta_{\\rm lab} \\in [1,5]$ allows one to measure these asymmetries at large $x^\\uparrow$ in the polarised nucleon.

L. Massacrier; M. Anselmino; R. Arnaldi; S. J. Brodsky; V. Chambert; W. den Dunnen; J. P. Didelez; B. Genolini; E. G. Ferreiro; F. Fleuret; Y. Gao; C. Hadjidakis; I. Hrivnacova; J. P. Lansberg; C. Lorcé; R. Mikkelsen; C. Pisano; A. Rakotozafindrabe; P. Rosier; I. Schienbein; M. Schlegel; E. Scomparin; B. Trzeciak; U. I. Uggerhoj; R. Ulrich; Z. Yang

2015-02-03T23:59:59.000Z

16

Bremsstrahlung from relativistic heavy ions in a fixed target experiment at the LHC  

E-Print Network [OSTI]

We calculate the emission of bremsstrahlung from lead and argon ions in A Fixed Target ExpeRiment (AFTER) that uses the LHC beams. With nuclear charges of $Ze$ equal $208$ and $18$ respectively, these ions are accelerated to energies of $7$ TeV$\\times Z $. The bremsstrahlung peaks around $\\approx 100$ GeV and the spectrum exposes the nuclear structure of the incoming ion. The peak structure is significantly different from the flat power spectrum pertaining to a point charge. Photons are predominantly emitted within an angle of $1/\\gamma$ to the direction of ion propagation. Our calculations are based on the Weizs\\"{a}cker-Williams method of virtual quanta with application of existing experimental data on photonuclear interactions.

Rune E. Mikkelsen; Allan H. Sřrensen; Ulrik I. Uggerhřj

2015-03-23T23:59:59.000Z

17

Workshop on electronuclear physics with internal targets: Proceedings  

SciTech Connect (OSTI)

The Workshop on Electronuclear Physics with Internal Targets was held at SLAC on January 5-8, 1987. The idea for this workshop grew out of interest among physicists at SLAC and MIT/Bates who have been exploring the possibilities for internal targets in the PEP ring at SLAC and in a proposed stretcher ring at MIT/Bates. The aim of the workshop was to bring together physicists from these groups and from other laboratories and universities to discuss the new physics that could be made accessible with internal targets, and to share information on recent developments in internal target technology, on the impact of internal targets on ring operation, and on the detector requirements. The workshop was sponsored by NPAS, the program of Nuclear Physics at SLAC, and it was attended by more than 100 physicists from the US, Canada, Europe, and Japan. The workshop sessions began with two days of invited talks followed by two days of shorter presentations organized by the chairmen of four Working Groups. Written versions of all the plenary talks and all but four of the Working Group talks are presented here.

Arnold, R.G.; Minehart, R.C. (eds.)

1987-05-01T23:59:59.000Z

18

An Assessment of Inertial Confinement Fusion Target Physics A Panel on Fusion Target Physics ("the Panel") will serve as a technical resource to the  

E-Print Network [OSTI]

An Assessment of Inertial Confinement Fusion Target Physics A Panel on Fusion Target Physics ("the Panel") will serve as a technical resource to the Committee on Inertial Confinement Energy Systems ("the Physics will prepare a report that will assess the current performance of fusion targets associated

19

Thin-thick hydrogen target for nuclear physics  

SciTech Connect (OSTI)

In spectroscopic studies of unstable nuclei, hydrogen targets are of key importance. The CHyMENE Project aims to provide to the nuclear physics community a thin and pure solid windowless hydrogen or deuterium target. CHyMENE project must respond to this request for the production of solid Hydrogen. The solid hydrogen target is produced in a continuous flow (1 cm/s) by an extrusion technique (developed with the PELIN laboratory) in a vacuum chamber. The shape of the target is determined by the design of the nozzle at the extrusion process. For the purpose, the choice is a rectangular shape with a width of 10 mm and a thickness in the range of 30-50 microns necessary for the physics objectives. The cryostat is equipped with a GM Cryocooler with sufficient power for the solidification of the hydrogen in the lower portion of the extruder. In the higher part of the cryostat, the hydrogen gas is first liquefied and partially solidified. It is then compressed at 100 bars in the cooled extruder before expulsion of the film through the nozzle at the center of the reaction vacuum chamber. After the previous step, the solid hydrogen ribbon falls by gravity into a dedicated chamber where it sublimes and the gas is pumped and evacuated in a exhaust line. This paper deals with the design of the cryostat with its equipment, with the sizing of the thermal bridge (Aluminum and copper), with the results regarding the contact resistance as well as with the vacuum computations of the reaction and recovery hydrogen gas chambers.

Gheller, J.-M.; Juster, F.-P.; Authelet, G. [CEA Saclay, Irfu/SACM, F-91191 Gif-Sur-Yvette cedex (France); Vinyar, I. [PELIN Limited Liability Company 27 A, Gzhatskaya Str, office 103 St. Petersbourg 195220 (Russian Federation); Relland, J. [CEA Saclay, Irfu/SIS, F-91191 Gif-Sur-Yvette cedex (France); Commeaux, C. [Institut de Physique Nucléaire, campus Universitaire-Bat 103, 91406 Orsay cedex (France)

2014-01-29T23:59:59.000Z

20

Cryogenic-target performance and implosion physics studies on OMEGAa... V. A. Smalyuk,1,b  

E-Print Network [OSTI]

focused on understanding the physics of this high-intensity regime. Understanding the dy- namics of targetCryogenic-target performance and implosion physics studies on OMEGAa... V. A. Smalyuk,1,b R. Betti York 14623-1299, USA 2 Plasma Science and Fusion Center, Massachusetts Institute of Technology

Note: This page contains sample records for the topic "fixed target physics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

The physics issues that determine inertial confinement fusion target gain and driver requirements: A tutorial*  

E-Print Network [OSTI]

The physics issues that determine inertial confinement fusion target gain and driver requirements ``bookkeeping'' of input parametrized by ICF drivers' coupling efficiencies to the target, and subsequent requirements will be discussed for both the direct drive driver impinging directly on the target and indirect

22

An Electron Fixed Target Experiment to Search for a New Vector Boson A' Decaying to e+e-  

SciTech Connect (OSTI)

We describe an experiment to search for a new vector boson A' with weak coupling {alpha}' {approx}> 6 x 10{sup -8} {alpha} to electrons ({alpha} = e{sup 2}/4{pi}) in the mass range 65 MeV < m{sub A'} < 550 MeV. New vector bosons with such small couplings arise naturally from a small kinetic mixing of the 'dark photon' A' with the photon - one of the very few ways in which new forces can couple to the Standard Model - and have received considerable attention as an explanation of various dark matter related anomalies. A' bosons are produced by radiation off an electron beam, and could appear as narrow resonances with small production cross-section in the trident e{sup +}e{sup -} spectrum. We summarize the experimental approach described in a proposal submitted to Jefferson Laboratory's PAC35, PR-10-009. This experiment, the A' Experiment (APEX), uses the electron beam of the Continuous Electron Beam Accelerator Facility at Jefferson Laboratory (CEBAF) at energies of {approx} 1-4 GeV incident on 0.5-10% radiation length Tungsten wire mesh targets, and measures the resulting e{sup +}e{sup -} pairs to search for the A' using the High Resolution Spectrometer and the septum magnet in Hall A. With a {approx} 1 month run, APEX will achieve very good sensitivity because the statistics of e{sup +}e{sup -} pairs will be {approx} 10,000 times larger in the explored mass range than any previous search for the A' boson. These statistics and the excellent mass resolution of the spectrometers allow sensitivity to {alpha}'/{alpha} one to three orders of magnitude below current limits, in a region of parameter space of great theoretical and phenomenological interest. Similar experiments could also be performed at other facilities, such as the Mainz Microtron.

Essig, Rouven; Schuster, Philip; /SLAC; Toro, Natalia; /Stanford U., Phys. Dept.; Wojtsekhowski, Bogdan; /Jefferson Lab; ,

2010-06-11T23:59:59.000Z

23

Radioactive target needs for nuclear reactor physics and nuclear astrophysics , G. Barreau1  

E-Print Network [OSTI]

Radioactive target needs for nuclear reactor physics and nuclear astrophysics B.Jurado1* , G Gradignan, France 2 IPN, CNRS/IN2P3, Univ. Paris-Sud, 91405 Orsay, France Abstract: Nuclear reaction cross sections of short-lived nuclei are key inputs for new generation nuclear reactor simulations and for models

Boyer, Edmond

24

Targets for R&D on Nb3Sn conductor for High Energy Physics  

E-Print Network [OSTI]

High Energy Physics has been consistently pushing the performance of technical superconductors, for the benefit of high field magnet technology. So far the workhorse for particle accelerators has been Nb-Ti, but the practical performance limit has been attained with the LHC. Calls for higher beam luminosity (e.g. HL-LHC), and higher beam energy (e.g. FCC), demand a transition from Nb-Ti to Nb3Sn, presently the only practical candidate material offering the required high field performance. This paper provides a summary of desirable properties and performance targets for Nb3Sn to satisfy the challenging magnet specifications for upgrades of existing and future HEP accelerators.

Ballarino, A

2015-01-01T23:59:59.000Z

25

Measurement of the J/Psi Production Cross Section in 920 GeV/c Fixed-Target Proton-Nucleus Interactions  

E-Print Network [OSTI]

The mid-rapidity (dsigma_(pN)/dy at y=0) and total sigma_(pN) production cross sections of J/Psi mesons are measured in proton-nucleus interactions. Data collected by the HERA-B experiment in interactions of 920 GeV/c protons with carbon, titanium and tungsten targets are used for this analysis. The J/Psi mesons are reconstructed by their decay into lepton pairs. The total production cross section obtained is sigma_(pN)(J/Psi) = 663 +- 74 +- 46 nb/nucleon. In addition, our result is compared with previous measurements.

HERA-B collaboration

2005-12-13T23:59:59.000Z

26

APEX: An electron fixed-target experiment to search for a new vector boson A? Decaying to e{sup +}e{sup ?}  

SciTech Connect (OSTI)

The A' EXperiment (APEX) is designed to search for new vector bosons that have small couplings to charged particles. Such vectors can arise naturally from a small kinetic mixing of a new 'dark photon' (A') with the photon - one of the very few ways in which new forces can couple to the Standard Model - and have received considerable attention as an explanation of various dark matter related anomalies. A' bosons are produced by radiation off an electron beam, and could appear as narrow resonances with small production cross-section in the QED e{sup +}e{sup ?} spectrum. We plan to search for an A' using the CEBAF electron beam at energies of 1-4 GeV incident on 0.5-10% radiation length multi-foil tungsten targets, and measure the resulting e{sup +}e{sup ?} pairs using the High Resolution Spectrometers and a septum magnet in Hall A at Jefferson Lab. With a 33-day run, APEX will explore the region 50 MeV < m{sub A?} < 550 MeV with couplings alpha'/alpha down to 10{sup ?7}. This proceeding summarizes the experiment, test run results, and comments on future plans.

Schuster, Philip, E-mail: pschuster@perimeterinstitute.ca [Perimeter Institute for Theoretical Physics Ontario (Canada); Collaboration: APEX Collaboration

2013-11-07T23:59:59.000Z

27

A cerium glass fiber-optic active target for high energy physics experiments  

SciTech Connect (OSTI)

A fiber-optic plate imaging system has been developed for active target and tracking applications, in which the active element is Ce(3+) in a silicate glass. Particle tracks and interactions have been recorded with a hit density of /approx gt/4/mm for minimum ionizing particles and with a spatial resolution sigma /similar to/ 28..mu..m.

Ruchti, R.; Baumbaugh, B.; Bishop, J.; Biswas, N.; Busenitz, J.; Cason, N.; Cunningham, J.; Gardner, R.; Grenquist, S.; Kenney, V.; Mannel, E.; Mountain, R.; Shephard, W.; Baumbaugh, A.; Knickerbocker, K.; Wegner, C.; Yarema, R.; Rogers, A.; Kinchen, B.; Ellis, J.; Mead, R.; Swanson, D.

1985-10-01T23:59:59.000Z

28

Nuclear Simulation and Radiation Physics Investigations of the Target Station of the European Spallation Neutron Source  

SciTech Connect (OSTI)

The European Spallation Neutron Source (ESS) delivers high-intensity pulsed particle beams with 5-MW average beam power at 1.3-GeV incident proton energy. This causes sophisticated demands on material and geometry choices and a very careful optimization of the whole target system. Therefore, complex and detailed particle transport models and computer code systems have been developed and used to study the nuclear assessment of the ESS target system. The purpose here is to describe the methods of calculation mainly based on the Monte Carlo code to show the performance of the ESS target station. The interesting results of the simulations of the mercury target system are as follows: time-dependent neutron flux densities, energy deposition and heating, radioactivity and afterheat, materials damage by radiation, and high-energy source shielding. The results are discussed in great detail. The validity of codes and models, further requirements to improve the methods of calculation, and the status of running and planned experiments are given also.

Filges, Detlef; Neef, Ralf-Dieter; Schaal, Hartwig [Forschungszentrum Juelich GmbH (Germany)

2000-10-15T23:59:59.000Z

29

New photon science and extreme field physics: volumetric interaction of ultra-intense laser pulses with over-dense targets  

SciTech Connect (OSTI)

The constantly improving capabilities of ultra-high power lasers are enabling interactions of matter with ever extremer fields. As both the on target intensity and the laser contrast are increasing, new physics regimes are becoming accessible and new effects materialize, which in turn enable a host of applications. A first example is the realization of interactions in the transparent-overdense regime (TOR), which is reached by interacting a highly relativistic (a{sub 0} > 10), ultra high contrast laser pulse with a solid density, nanometer target. Here, a still overdense target is turned transparent to the laser by the relativistic mass increase of the electrons, increasing the skin depth beyond the target thickness and thus enabling volumetric interaction of the laser with the entire target instead of only a small interaction region at the critical density surface. This increases the energy coupling, enabling a range of effects, including relativistic optics and pulse shaping, mono-energetic electron acceleration, highly efficient ion acceleration in the break-out afterburner regime, the generation of relativistic and forward directed surface harmonics. In this talk we will show the theoretical framework for this regime, explored by multi-D, high resolution and high density PIC simulations as well as analytic theory and present measurements and experimental demonstrations of direct relativistic optics, relativistic HHG, electron acceleration, and BOA ion acceleration in the transparent overdense regime. These effects can in turn be used in a host of applications including laser pulse shaping, ICF diagnostics, coherent x-ray sources, and ion sources for fast ignition (IFI), homeland security applications and medical therapy. This host of applications already makes transparent-overdense regime one of general interest, a situation reinforced by the fact that the TOR target undergoes an extremely wide HEDP parameter space during interaction ranging from WDM conditions (e.g . brown dwarfs) early in the interaction to extremely high energy densities of {approx}10{sup 11} J/cm{sup 3} at peak, dropping back to the underdense but extremely hot parameter range of gamma-ray bursts. Furthermore, whereas today this regime can only be accessed on very few dedicated facilities, employing special targets and pulse cleaning technology, the next generation of laser facilities like RAL-10PW, ELI, or Gekko-Exa will operate in this regime by default, turning its understanding in a necessity rather than a curiosity.

Hegelich, Bjorn M [Los Alamos National Laboratory

2010-11-24T23:59:59.000Z

30

Physics of laser fusion. Volume II. Diagnostics of experiments on laser fusion targets at LLNL  

SciTech Connect (OSTI)

These notes present the experimental basis and status for laser fusion as developed at LLNL. There are two other volumes in this series: Vol. I, by C.E. Max, presents the theoretical laser-plasma interaction physics; Vol. III, by J.F. Holzrichter et al., presents the theory and design of high-power pulsed lasers. A fourth volume will present the theoretical implosion physics. The notes consist of six sections. The first, an introductory section, provides some of the history of inertial fusion and a simple explanation of the concepts involved. The second section presents an extensive discussion of diagnostic instrumentation used in the LLNL Laser Fusion Program. The third section is a presentation of laser facilities and capabilities at LLNL. The purpose here is to define capability, not to derive how it was obtained. The fourth and fifth sections present the experimental data on laser-plasma interaction and implosion physics. The last chapter is a short projection of the future.

Ahlstrom, H.G.

1982-01-01T23:59:59.000Z

31

Fix-Up Loan  

Broader source: Energy.gov [DOE]

The Minnesota Housing Finance Agency's (MHFA) Fix-up Loan provides low-interest financing for energy conservation and other basic improvements to residential properties. Home improvement loans...

32

Local Uniqueness for the Fixed Energy Fixed Angle Inverse Problem ...  

E-Print Network [OSTI]

Abstract. We prove local uniqueness for the inverse problem in obstacle scattering at a fixed energy and fixed incident angle. We consider the inverse problem of ...

33

Optimal mixing and optimal stirring for fixed energy, fixed power or fixed palenstrophy flows  

E-Print Network [OSTI]

Optimal mixing and optimal stirring for fixed energy, fixed power or fixed palenstrophy flows-time perfect mixing with a finite energy constraint on the stirring flow. On the other hand, using techniques, University of Michigan, Ann Arbor, MI 48109 (Dated: 31 March 2012) We consider passive scalar mixing

Novikov, Alexei

34

Current experiments in elementary particle physics  

SciTech Connect (OSTI)

This report contains summaries of 720 recent and current experiments in elementary particle physics (experiments that finished taking data before 1980 are excluded). Included are experiments at Brookhaven, CERN, CESR, DESY, Fermilab, Moscow Institute of Theoretical and Experimental Physics, Tokyo Institute of Nuclear Studies, KEK, LAMPF, Leningrad Nuclear Physics Institute, Saclay, Serpukhov, SIN, SLAC, and TRIUMF, and also experiments on proton decay. Instructions are given for searching online the computer database (maintained under the SLAC/SPIRES system) that contains the summaries. Properties of the fixed-target beams at most of the laboratories are summarized.

Wohl, C.G.; Armstrong, F.E., Oyanagi, Y.; Dodder, D.C.; Ryabov, Yu.G.; Frosch, R.; Olin, A.; Lehar, F.; Moskalev, A.N.; Barkov, B.P.

1987-03-01T23:59:59.000Z

35

Assess the key physics that underpins high-hydro coupling-efficiency in NDCX-II experiments and high-gain heavy ion direct drive target designs using proven hydro codes like HYDRA  

E-Print Network [OSTI]

physics that underpins high-hydro coupling-efficiency in N Dtarget designs using proven hydro codes like H Y D R A . byF E targets, we have studied hydro and implosion efficiency

Barnard, J. J.

2010-01-01T23:59:59.000Z

36

Physics  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest RegionatSearch Welcome to theNews & Blog »Physics Physics Print Because

37

Physics  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Physics A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A'Hearn, Michael F. - Department of Astronomy, University of Maryland at College Park Aalberts, Daniel P. - Department...

38

Physics  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006Photovoltaic Theory and Modeling Los AlamosAerosol.Physics

39

Physics  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassive Solar Home Design Passive SolarCenter |Photoinduced2Zoe Martin'sPhysics Print

40

FAIR Forefront Physics and Challenges: Extreme Field Physics with Lasers and  

E-Print Network [OSTI]

of secondary beams · SC magnets fast ramping · Parallel operation SIS 100/300 HESR Super FRS NESR CBM HADES Module 0 SIS100 Module 1 expt areas CBM/HADES and APPA Module 2 Super-FRS fixed target area NuSTAR Module "New Perspectives of High Energy Physics"B. Sharkov 11 PANDA CBM/HADES NuSTAR Outstanding research

Note: This page contains sample records for the topic "fixed target physics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

High density cluster jet target for storage ring experiments  

E-Print Network [OSTI]

The design and performance of a newly developed cluster jet target installation for hadron physics experiments are presented which, for the first time, is able to generate a hydrogen cluster jet beam with a target thickness of above $10^{15}\\,\\mathrm{atoms/cm}^2$ at a distance of two metres behind the cluster jet nozzle. The properties of the cluster beam and of individual clusters themselves are studied at this installation. Special emphasis is placed on measurements of the target beam density as a function of the relevant parameters as well as on the cluster beam profiles. By means of a time-of-flight setup, measurements of the velocity of single clusters and velocity distributions were possible. The complete installation, which meets the requirements of future internal fixed target experiments at storage rings, and the results of the systematic studies on hydrogen cluster jets are presented and discussed.

Alexander Täschner; Esperanza Köhler; Hans-Werner Ortjohann; Alfons Khoukaz

2011-11-02T23:59:59.000Z

42

The CNGS Target Station Presented by L.Bruno  

E-Print Network [OSTI]

sealed system filled with 0.5 bar of He. The tube has annular fins to enhance convective heat transfer enclosure Inlet target Inlet fixed shielding Outlet Beam #12;The target Assembly The CNGS Target Station as

McDonald, Kirk

43

Web Style Guide Fixed Dimension  

E-Print Network [OSTI]

Web Style Guide KEY: Fixed Dimension: Variable Dimension: V1.1, SEPTEMBER 2010 #12;Page 2 Table PAGE NEWS & EVENTS PAGE Fonts & Colors FONTS COLORS Web Writing Guidelines WEB WRITING GUIDELINES Web

44

Current experiments in elementary particle physics  

SciTech Connect (OSTI)

This report contains summaries of 736 current and recent experiments in elementary particle physics (experiments that finished taking data before 1982 are excluded). Included are experiments at Brookhaven, CERN, CESR, DESY, Fermilab, Tokyo Institute of Nuclear Studies, Moscow Institute of Theoretical and Experimental Physics, Joint Institute for Nuclear Research (Dubna), KEK, LAMPF, Novosibirsk, PSI/SIN, Saclay, Serpukhov, SLAC, and TRIUMF, and also several underground experiments. Also given are instructions for searching online the computer database (maintained under the SLAC/SPIRES system) that contains the summaries. Properties of the fixed-target beams at most of the laboratories are summarized.

Wohl, C.G.; Armstrong, F.E.; Trippe, T.G.; Yost, G.P. (Lawrence Berkeley Lab., CA (USA)); Oyanagi, Y. (Tsukuba Univ., Ibaraki (Japan)); Dodder, D.C. (Los Alamos National Lab., NM (USA)); Ryabov, Yu.G.; Slabospitsky, S.R. (Gosudarstvennyj Komitet po Ispol'zovaniyu Atomnoj Ehnergii SSSR, Serpukhov (USSR). Inst. Fiziki Vysokikh Ehnergij); Frosch, R. (Swiss Inst. for Nuclear Research, Villigen (Switzerla

1989-09-01T23:59:59.000Z

45

Thermodynamics of SU(3) gauge theory at fixed lattice spacing  

E-Print Network [OSTI]

We study thermodynamics of SU(3) gauge theory at fixed scales on the lattice, where we vary temperature by changing the temporal lattice size N_t=(Ta_t)^{-1}. In the fixed scale approach, finite temperature simulations are performed on common lattice spacings and spatial volumes. Consequently, we can isolate thermal effects in observables from other uncertainties, such as lattice artifact, renormalization factor, and spatial volume effect. Furthermore, in the EOS calculations, the fixed scale approach is able to reduce computational costs for zero temperature subtraction and parameter search to find lines of constant physics, which are demanding in full QCD simulations. As a test of the approach, we study the thermodynamics of the SU(3) gauge theory on isotropic and anisotropic lattices. In addition to the equation of state, we calculate the critical temperature and the static quark free energy at a fixed scale.

T. Umeda; S. Ejiri; S. Aoki; T. Hatsuda; K. Kanaya; Y. Maezawa; H. Ohno

2008-10-09T23:59:59.000Z

46

Evidence of the Big Fix  

E-Print Network [OSTI]

We give an evidence of the Big Fix. The theory of wormholes and multiverse suggests that the parameters of the Standard Model are fixed in such a way that the total entropy at the late stage of the universe is maximized, which we call the maximum entropy principle. In this paper, we discuss how it can be confirmed by the experimental data, and we show that it is indeed true for the Higgs vacuum expectation value $v_{h}$. We assume that the baryon number is produced by the sphaleron process, and that the current quark masses, the gauge couplings and the Higgs self coupling are fixed when we vary $v_{h}$. It turns out that the existence of the atomic nuclei plays a crucial role to maximize the entropy. This is reminiscent of the anthropic principle, however it is required by the fundamental low in our case.

Yuta Hamada; Hikaru Kawai; Kiyoharu Kawana

2014-09-09T23:59:59.000Z

47

Variable delivery, fixed displacement pump  

DOE Patents [OSTI]

A variable delivery, fixed displacement pump comprises a plurality of pistons reciprocated within corresponding cylinders in a cylinder block. The pistons are reciprocated by rotation of a fixed angle swash plate connected to the pistons. The pistons and cylinders cooperate to define a plurality of fluid compression chambers each have a delivery outlet. A vent port is provided from each fluid compression chamber to vent fluid therefrom during at least a portion of the reciprocal stroke of the piston. Each piston and cylinder combination cooperates to close the associated vent port during another portion of the reciprocal stroke so that fluid is then pumped through the associated delivery outlet. The delivery rate of the pump is varied by adjusting the axial position of the swash plate relative to the cylinder block, which varies the duration of the piston stroke during which the vent port is closed.

Sommars, Mark F. (Sparland, IL)

2001-01-01T23:59:59.000Z

48

High energy physics program: Task A, Experiment and theory; Task B, Numerical simulation. Progress report, July 1, 1988--June 30, 1993  

SciTech Connect (OSTI)

This report discusses research in High Energy Physics at Florida State University. Contained in this paper are: highlights of activities during the past few years; five year summary; fixed target experiments; collider experiments; SSC preparation, detector development and detector construction; computing, networking and VAX upgrade to ALPHA; and particle theory programs.

Not Available

1993-08-01T23:59:59.000Z

49

BROUWER'S FIXED POINT THEOREM JASPER DEANTONIO  

E-Print Network [OSTI]

BROUWER'S FIXED POINT THEOREM JASPER DEANTONIO Abstract. In this paper we prove Brouwer's Fixed be used to make three sequences which all have p as their limit point. Date: July 27, 2009. 1 #12;2 JASPER

May, J. Peter

50

Fixed Capital Investment Tax Credit (Connecticut)  

Broader source: Energy.gov [DOE]

The Fixed Capital Investment Tax Credit allows a tax credit of 5% of the amount paid for any new fixed capital investment. Companies with fewer than 800 full-time employees may take a tax credit...

51

Scheduling with Fixed Maintenance, Shared Resources and ...  

E-Print Network [OSTI]

Nov 17, 2014 ... maintenance constraints, blending and shared resources. ...... tegrated fixed time interval preventive maintenance and production for schedul-.

2015-02-07T23:59:59.000Z

52

Fixed Income Division Nomura International plc  

E-Print Network [OSTI]

Fixed Income Division © Nomura International plc Symmetry methods for quadratic Gaussian models International plc Outline Motivation The quadratic Gaussian distribution The quadratic Gaussian process The quadratic Gaussian model #12;Fixed Income Division 3© Nomura International plc Part 1 Motivation #12;Fixed

Macrina, Andrea

53

The OLYMPUS Internal Hydrogen Target  

E-Print Network [OSTI]

An internal hydrogen target system was developed for the OLYMPUS experiment at DESY, in Hamburg, Germany. The target consisted of a long, thin-walled, tubular cell within an aluminum scattering chamber. Hydrogen entered at the center of the cell and exited through the ends, where it was removed from the beamline by a multistage pumping system. A cryogenic coldhead cooled the target cell to counteract heating from the beam and increase the density of hydrogen in the target. A fixed collimator protected the cell from synchrotron radiation and the beam halo. A series of wakefield suppressors reduced heating from beam wakefields. The target system was installed within the DORIS storage ring and was successfully operated during the course of the OLYMPUS experiment in 2012. Information on the design, fabrication, and performance of the target system is reported.

J. C. Bernauer; V. Carassiti; G. Ciullo; B. S. Henderson; E. Ihloff; J. Kelsey; P. Lenisa; R. Milner; A. Schmidt; M. Statera

2014-04-02T23:59:59.000Z

54

Fixed Rank Kriging A Fixed Rank Prediction Algorithm for Massive Spatial  

E-Print Network [OSTI]

Fixed Rank Kriging A Fixed Rank Prediction Algorithm for Massive Spatial Data with Application, 2010 1 / 24 #12;Fixed Rank Kriging Outline Spatial model, assumptions and some implementation challenges. Summary of Fixed Rank Kriging by Cressie and Johannesson (2008). Propose algorithm to estimate

Gilbes, Fernando

55

Biological and physical regulation of the oceanic fixed nitrogen reservoir  

E-Print Network [OSTI]

2 in the subtropical North Pacific Ocean. Nature 412: 635-38in the eastern tropical Pacific Ocean. Marine Chemistry 16:and N 2 fixation in the Pacific Ocean. Global Biogeochemical

Weber, Thomas Smith

2013-01-01T23:59:59.000Z

56

Recent results on Charm Physics from Fermilab  

E-Print Network [OSTI]

New high statistics, high resolution fixed target experiments producing $10^5$ - $10^6$ fully reconstructed charm particles are allowing a detailed study of the charm sector. Recent results on charm quark production from Fermilab fixed target experiments E791, SELEX and FOCUS are presented.

J. C. Anjos; E. Cuautle

2000-05-16T23:59:59.000Z

57

Scheduling with Fixed Maintenance, Shared Resources and ...  

E-Print Network [OSTI]

Nov 30, 2014 ... Scheduling with Fixed Maintenance, Shared Resources and Nonlinear Feedrate Constraints: a Mine Planning Case Study. Christina N Burt ...

Christina N Burt

2014-11-30T23:59:59.000Z

58

High Energy Physics  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Large Scale Production Computing and Storage Requirements for High Energy Physics: Target 2017 HEPlogo.jpg The NERSC Program Requirements Review "Large Scale Computing and Storage...

59

Fourier Accelerated Conjugate Gradient Lattice Gauge Fixing  

E-Print Network [OSTI]

We provide details of the first implementation of a non-linear conjugate gradient method for Landau and Coulomb gauge fixing with Fourier acceleration. We find clear improvement over the Fourier accelerated steepest descent method, with the average time taken for the algorithm to converge to a fixed, high accuracy, being reduced by a factor of 2 to 4.

R. J. Hudspith

2014-05-22T23:59:59.000Z

60

VERTEX CHAMBERS TARGET CELL CALORIMETER  

E-Print Network [OSTI]

DRIFT VC 1/2 FC 1/2 VERTEX CHAMBERS TARGET CELL DVC MC 1­3 HODOSCOPE H0 MONITOR BC 1/2 BC 3/4 TRD at Threashold Lambda Physics (u ­L spin transfer) Motivation: ­ W L Target cell e beam L p p e ­ Elastic: Peltier elements ( T ~ ­20C ) ­ Custom built electronics + HELIX chips low autgassing (

Note: This page contains sample records for the topic "fixed target physics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Elementary particle physics and high energy phenomena. Progress report for FY93  

SciTech Connect (OSTI)

Experimental and theoretical high-energy physics programs at the University of Colorado are reported. Areas of concentration include the following: study of the properties of the Z{sup 0} with the SLD detector; fixed-target K-decay experiments; the R&D program for the muon system: the SDC detector; high-energy photoproduction of states containing heavy quarks; electron--positron physics with the CLEO II detector at CESR; lattice QCD; and spin models and dynamically triangulated random surfaces. 24 figs., 2 tabs., 117 refs.

Barker, A.R.; Cumalat, J.P.; De Alwis, S.P.; DeGrand, T.A.; Ford, W.T.; Mahanthappa, K.T.; Nauenberg, U.; Rankin, P.; Smith, J.G.

1992-06-01T23:59:59.000Z

62

RaisingRivals'FixedCosts Matthew Olczak  

E-Print Network [OSTI]

. In addition much of the recent Industrial Organisation literature has focused on the importance of sunk costs, whereas this paper considers fixed costs that do not have to be sunk costs. A set of guidelines produced

Feigon, Brooke

63

THEORY OF DISPERSED FIXED-DELAY INTERFEROMETRY FOR RADIAL VELOCITY EXOPLANET SEARCHES  

SciTech Connect (OSTI)

The dispersed fixed-delay interferometer (DFDI) represents a new instrument concept for high-precision radial velocity (RV) surveys for extrasolar planets. A combination of a Michelson interferometer and a medium-resolution spectrograph, it has the potential for performing multi-object surveys, where most previous RV techniques have been limited to observing only one target at a time. Because of the large sample of extrasolar planets needed to better understand planetary formation, evolution, and prevalence, this new technique represents a logical next step in instrumentation for RV extrasolar planet searches, and has been proven with the single-object Exoplanet Tracker (ET) at Kitt Peak National Observatory, and the multi-object W. M. Keck/MARVELS Exoplanet Tracker at Apache Point Observatory. The development of the ET instruments has necessitated fleshing out a detailed understanding of the physical principles of the DFDI technique. Here we summarize the fundamental theoretical material needed to understand the technique and provide an overview of the physics underlying the instrument's working. We also derive some useful analytical formulae that can be used to estimate the level of various sources of error generic to the technique, such as photon shot noise when using a fiducial reference spectrum, contamination by secondary spectra (e.g., crowded sources, spectroscopic binaries, or moonlight contamination), residual interferometer comb, and reference cross-talk error. Following this, we show that the use of a traditional gas absorption fiducial reference with a DFDI can incur significant systematic errors that must be taken into account at the precision levels required to detect extrasolar planets.

Van Eyken, Julian C.; Ge Jian; Mahadevan, Suvrath, E-mail: vaneyken@ipac.caltech.ed, E-mail: jge@astro.ufl.ed, E-mail: suvrath@astro.psu.ed [Department of Astronomy, University of Florida, 211 Bryant Space Science Center, P.O. Box 112055, Gainesville, FL 32611-2055 (United States)

2010-07-15T23:59:59.000Z

64

Essential and Fixed Oils of Kansas Plants  

E-Print Network [OSTI]

’ Center for Digital Scholarship. http://kuscholarworks.ku.edu Submitted to the University of Kansas in partial fulfillment of the requirements for the Degree of Master of Arts EARL J. WELLINGTON E s s e n t i a l and F i x e d Oi l s of K a n s a... s Plants ESSENTIAL AND FIXED OILS OP KANSAS PLANTS. R0D1D7 HIODM The following report deals with those Kansas plants (one or two trees included) which are known to y i e l d or are suspected of yielding essential and fixed o i l s . Ho cultivated...

Wellington, Earl J.

1908-01-01T23:59:59.000Z

65

A non-equilibrium model for fixed-bed multi-component adiabatic adsorption  

E-Print Network [OSTI]

to enter the bed. Solutions along a z ~ constant char- acteristic are the history of the. volumn element of the bed located a s constant, This physical interpretat1on is a physical approximation of the real world where adsorber discontinuities... 1 3. 3. 2 3e3e3 3. 3. 4 3. 3. 5 Solution of the multi-component adiabatic adsorption equation, . ~ ~ ~ Fluid phase equations. Fixed-bed solid phase equations. , ~ Construction of the solution surface by stepwise integra- tion...

Harwell, Jeffrey Harry

1979-01-01T23:59:59.000Z

66

Infrared fixed point in quantum Einstein gravity  

E-Print Network [OSTI]

We performed the renormalization group analysis of the quantum Einstein gravity in the deep infrared regime for different types of extensions of the model. It is shown that an attractive infrared point exists in the broken symmetric phase of the model. It is also shown that due to the Gaussian fixed point the IR critical exponent $\

S. Nagy; J. Krizsan; K. Sailer

2012-06-28T23:59:59.000Z

67

APPLIED PHYSICS APPLIED PHYSICS  

E-Print Network [OSTI]

MSc APPLIED PHYSICS #12;MSc APPLIED PHYSICS This taught Masters course is based on the strong research in Applied Physics in the University's Department of Physics. The department has an impressive photonics and quantum optics, Physics and the Life Sciences, and solid state physics. The knowledge gained

Mottram, Nigel

68

Target Diagnostics Supports NIF's Path to Ignition  

SciTech Connect (OSTI)

The physics requirements derived from the National Ignition Facility (NIF) experimental campaigns are leading to a wide variety of target diagnostics. Software development for the control and analysis of these diagnostics is included in the NIF Integrated Computer Control System, Diagnostic Control System and Data Visualization. These projects implement the configuration, controls, data analysis and visual representation of most of these diagnostics. To date, over 40 target diagnostics have been developed to support NIF experiments. In 2011 diagnostics were developed or enhanced to measure Ignition performance in a high neutron yield environment. Performance is optimized around four key variables: Adiabat (a) which is the strength and timing of four shocks delivered to the target, Velocity (V) of the imploding target, Mix (M) is the uniformity of the burn, and the Shape (S) of the imploding Deuterium Tritium (DT) hot spot. The diagnostics used to measure each of these parameters is shown in figure 1. Adiabat is measured using the Velocity Interferometer System for Any Reflector (VISAR) diagnostic consisting of three streak cameras. To provide for more accurate adiabat measurements the VISAR streak cameras were enhanced in FY11 with a ten comb fiducial signal controller to allow for post shot correction of the streak camera sweep non-linearity. Mix is measured by the Neutron Time of Flight (NTOF) and Radiochemical Analysis of Gaseous Samples (RAGS) diagnostics. To accommodate high neutron yield shots, NTOF diagnostic controls are being modified to use Mach Zehnder interferometer signals to allow the digitizers to be moved from near the target chamber to the neutron shielded diagnostic mezzanine. In December 2011 the first phase of RAGS diagnostic commissioning will be completed. This diagnostic will analyze the tracers that are added to NIF target capsules that undergo nuclear reactions during the shot. These gases are collected and purified for nuclear counting by the RAGS system. Three new instrument controllers were developed and commissioned to support this diagnostic. A residual-gas analyzer (RGA) instrument measures the gas content at various points in the system. The Digital Gamma Spectrometer instrument measures the radiological spectrum of the decaying gas isotopes. A final instrument controller was developed to interface to a PLC based Gas collection system. In order to support the implosion velocity measurements an additional Gated X-ray Detector (GXD) diagnostic was tested and commissioned. This third GXD views the target through a slit contained in its snout and allows the other GXD diagnostics to be used for measuring the shape on the same shot. In order to measure the implosion shape in a high neutron environment, Actide Readout In A Neutron Environment (ARIANE) and Neutron Imaging (NI) diagnostics were commissioned. The controls for ARIANE, a fixed port gated x-ray imager, contain a neutron shielded camera and micro channel plate pulser with its neutron sensitive electronics located in the diagnostic mezzanine. The NI diagnostic is composed of two Spectral Instruments SI-1000 cameras located 20M from the target and provides neutron images of the DT hot spot for high yield shots. The development and commissioning of these new or enhanced diagnostics in FY11 have provided meaningful insight that facilitates the optimization of the four key Ignition variables. In FY12 they will be adding three new diagnostics and enhancing four existing diagnostics in support of the continuing optimization series of campaigns.

Shelton, R

2011-12-07T23:59:59.000Z

69

Accelerator target  

DOE Patents [OSTI]

A target includes a body having a depression in a front side for holding a sample for irradiation by a particle beam to produce a radioisotope. Cooling fins are disposed on a backside of the body opposite the depression. A foil is joined to the body front side to cover the depression and sample therein. A perforate grid is joined to the body atop the foil for supporting the foil and for transmitting the particle beam therethrough. A coolant is circulated over the fins to cool the body during the particle beam irradiation of the sample in the depression. 5 figs.

Schlyer, D.J.; Ferrieri, R.A.; Koehler, C.

1999-06-29T23:59:59.000Z

70

Accelerator target  

DOE Patents [OSTI]

A target includes a body having a depression in a front side for holding a sample for irradiation by a particle beam to produce a radioisotope. Cooling fins are disposed on a backside of the body opposite the depression. A foil is joined to the body front side to cover the depression and sample therein. A perforate grid is joined to the body atop the foil for supporting the foil and for transmitting the particle beam therethrough. A coolant is circulated over the fins to cool the body during the particle beam irradiation of the sample in the depression.

Schlyer, David J. (Bellport, NY); Ferrieri, Richard A. (Patchogue, NY); Koehler, Conrad (Miller Place, NY)

1999-01-01T23:59:59.000Z

71

Nonperturbative infrared fixed point in sextet QCD  

E-Print Network [OSTI]

The SU(3) gauge theory with fermions in the sextet representation is one of several theories of interest for technicolor models. We have carried out a Schrodinger functional (SF) calculation for the lattice theory with two flavors of Wilson fermions. We find that the discrete beta function changes sign when the SF renormalized coupling is in the neighborhood of g^2 = 2.0, showing a breakdown of the perturbative picture even though the coupling is weak. The most straightforward interpretation is an infrared-stable fixed point.

Benjamin Svetitsky; Yigal Shamir; Thomas DeGrand

2008-09-18T23:59:59.000Z

72

Neutron Electric Dipole Moment at Fixed Topology  

E-Print Network [OSTI]

We describe the finite volume effects of CP-odd quantities, such as the neutron electric dipole moment and the anapole moment in the $\\theta$-vacuum, under different topological sectors. We evaluate the three-point Green's functions for the electromagnetic current in a fixed non-trivial topological sector in order to extract these CP-odd observables. We discuss the role of zero modes in the CP-odd Green's function and show that, in the quenched approximation, there is a power divergence in the quark mass for CP-odd quantities at finite volume.

Keh-Fei Liu

2008-07-09T23:59:59.000Z

73

Fixed Rate Agreement | Department of Energy  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of Energy Power SystemsResourcesFLASH2011-11-OPAMFY 2007 TotalFinalJobs FindofMathematicianDepartmentFixed

74

Company Template (Fixed Support) | Department of Energy  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energyon ArmedWaste andAccessCO2 InjectionDepartment ofFresno U.S.Commute Mode SwitchingFixed

75

Consortium Support (Fixed Support) | Department of Energy  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energyon ArmedWaste andAccessCO2 InjectionDepartmentServicesImporter Q&AsSupport (Fixed

76

Consortium Support (Fixed Support) | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGYWomen Ownedof EnergyAdvanced-30 QERDNA linkers allowMarch 31, 2015Consortium Fixed

77

HARD PARTON PHYSICS IN HIGH ENERGY NUCLEAR COLLISIONS. PROCEEDINGS OF RIKEN BNL RESEARCH CENTER WORKSHOP, VOLUME 17  

SciTech Connect (OSTI)

The RIKEN-BNL center workshop on ''Hard parton physics in high energy nuclear collisions'' was held at BNL from March 1st-5th! 1999. The focus of the workshop was on hard probes of nucleus-nucleus collisions that will be measured at RHIC with the PHENIX and STAR detectors. There were about 45 speakers and over 70 registered participants at the workshop, with roughly a quarter of the speakers from overseas. About 60% of the talks were theory talks. A nice overview of theory for RHIC was provided by George Sterman. The theoretical talks were on a wide range of topics in QCD which can be classified under the following: (a) energy loss and the Landau-Pomeranchuk-Migdal effect; (b) minijet production and equilibration; (c) small x physics and initial conditions; (d) nuclear parton distributions and shadowing; (e) spin physics; (f) photon, di-lepton, and charm production; and (g) hadronization, and simulations of high pt physics in event generators. Several of the experimental talks discussed the capabilities of the PHENIX and STAR detectors at RHIC in measuring high pt particles in heavy ion collisions. In general, these talks were included in the relevant theory sessions. A session was set aside to discuss the spin program at RHIC with polarized proton beams. In addition, there were speakers from 08, HERA, the fixed target experiments at Fermilab, and the CERN fixed target Pb+Pb program, who provided additional perspective on a range of issues of relevance to RHIC; from jets at the Tevatron, to saturation of parton distributions at HERA, and recent puzzling data on direct photon production in fixed target experiments, among others.

CARROLL,J.

1999-09-10T23:59:59.000Z

78

FIXED PRICE RESIDUAL FUNDS POLICY Policy dated March 29, 1999  

E-Print Network [OSTI]

FIXED PRICE RESIDUAL FUNDS POLICY Policy dated March 29, 1999 After completion of all deliverables required under a fixed-price award, after costs in fulfilling the requirements of the award have been

Weston, Ken

79

FORWARD PHYSICS AND BRAHMS RESULTS.  

SciTech Connect (OSTI)

We report here the BRAHMS measurements of particle production in d+Au and p+p collisions at RHIC. The results presented here are compared to previous p+A measurements at lower energies in fixed target mode. Some preliminary results on abundances of identified particles at high rapidity are also presented.

DEBBE, R.; (FOR THE BRAHMS COLLABORATION)

2005-02-03T23:59:59.000Z

80

Cyclotrons to Make Neutrons & Radioactive Targets for SBSS at...  

Office of Science (SC) Website

Cyclotrons to Make Neutrons & Radioactive Targets for SBSS at LBNL Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Applications of Nuclear...

Note: This page contains sample records for the topic "fixed target physics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Linear and angular retroreflecting interferometric alignment target  

DOE Patents [OSTI]

The present invention provides a method and apparatus for measuring both the linear displacement and angular displacement of an object using a linear interferometer system and an optical target comprising a lens, a reflective surface and a retroreflector. The lens, reflecting surface and retroreflector are specifically aligned and fixed in optical connection with one another, creating a single optical target which moves as a unit that provides multi-axis displacement information for the object with which it is associated. This displacement information is useful in many applications including machine tool control systems and laser tracker systems, among others.

Maxey, L. Curtis (Powell, TN)

2001-01-01T23:59:59.000Z

82

On fixed-gap adiabatic quantum computation  

E-Print Network [OSTI]

Quantum computation has revolutionary potential for speeding algorithms and for simulating quantum systems such as molecules. We report here a quantum computer design that performs universal quantum computation within a single non-degenerate ground state protected from decohering noise by an energy gap that we argue is system-size-independent. Closely analogous to a traditional electric circuit, it substantially changes the requirements for quantum computer construction, easing measurement, timing, and heating problems. Using the standard adiabatic condition, we present evidence that this design permits "quantum concurrent processing" distributing a quantum computation among extra qubits to perform a quantum algorithm of N gates in an amount of time that scales with the square root of N. One consequence of our work is a fixed gap version of adiabatic quantum computation, which several arguments hinted could be impossible.

Ari Mizel

2014-01-21T23:59:59.000Z

83

E-Print Network 3.0 - auto-contoured target volume Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Physics, Princeton University Collection: Physics 6 July 26 NuFACT Target Meeting 1 Simulation of Dynamic Interaction of the Neutrino Factory Summary: July 26 NuFACT Target...

84

Large Scale Computing and Storage Requirements for Nuclear Physics  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Science at NERSC HPC Requirements Reviews Requirements for Science: Target 2014 Nuclear Physics (NP) Large Scale Computing and Storage Requirements for Nuclear Physics:...

85

ORION laser target diagnostics  

SciTech Connect (OSTI)

The ORION laser facility is one of the UK's premier laser facilities which became operational at AWE in 2010. Its primary mission is one of stockpile stewardship, ORION will extend the UK's experimental plasma physics capability to the high temperature, high density regime relevant to Atomic Weapons Establishment's (AWE) program. The ORION laser combines ten laser beams operating in the ns regime with two sub ps short pulse chirped pulse amplification beams. This gives the UK a unique combined long pulse/short pulse laser capability which is not only available to AWE personnel but also gives access to our international partners and visiting UK academia. The ORION laser facility is equipped with a comprehensive suite of some 45 diagnostics covering optical, particle, and x-ray diagnostics all able to image the laser target interaction point. This paper focuses on a small selection of these diagnostics.

Bentley, C. D.; Edwards, R. D.; Andrew, J. E.; James, S. F.; Gardner, M. D.; Comley, A. J.; Vaughan, K.; Horsfield, C. J.; Rubery, M. S.; Rothman, S. D.; Daykin, S.; Masoero, S. J.; Palmer, J. B.; Meadowcroft, A. L.; Williams, B. M.; Gumbrell, E. T.; Fyrth, J. D.; Brown, C. R. D.; Hill, M. P.; Oades, K. [Plasma Physics Department, Atomic Weapons Establishment, Aldermaston, Reading, Berkshire RG7 4PR (United Kingdom); and others

2012-10-15T23:59:59.000Z

86

Apparatus for fixed bed coal gasification  

DOE Patents [OSTI]

An apparatus for fixed-bed coal gasification is described in which coal such as caking coal is continuously pyrolyzed with clump formation inhibited, by combining the coal with a combustible gas and an oxidant, and then continually feeding the pyrolyzed coal under pressure and elevated temperature into the gasification region of a pressure vessel. The materials in the pressure vessel are allowed to react with the gasifying agents in order to allow the carbon contents of the pyrolyzed coal to be completely oxidized. The combustion of gas produced from the combination of coal pyrolysis and gasification involves combining a combustible gas coal and an oxidant in a pyrolysis chamber and heating the components to a temperature of at least 1600.degree. F. The products of coal pyrolysis are dispersed from the pyrolyzer directly into the high temperature gasification region of a pressure vessel. Steam and air needed for gasification are introduced in the pressure vessel and the materials exiting the pyrolyzer flow down through the pressure vessel by gravity with sufficient residence time to allow any carbon to form carbon monoxide. Gas produced from these reactions are then released from the pressure vessel and ash is disposed of.

Sadowski, Richard S. (Greenville, SC)

1992-01-01T23:59:59.000Z

87

In the Target Area  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

8 22 | Next | Last Back to Index NIF Target Chamber The interior of the NIF target chamber. The service module carrying technicians can be seen on the left. The target...

88

A Chance-Constrained Model & Cutting Planes for Fixed Broadband ...  

E-Print Network [OSTI]

France, e-mail: david.coudert@inria.fr ... and by the French Ministry of Foreign Affairs. ..... N., Rivano, H.: Power-efficient radio configuration in fixed broad-.

2011-03-04T23:59:59.000Z

89

Diesel Particulate Oxidation Model: Combined Effects of Fixed...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Volatile Carbon Diesel Particulate Oxidation Model: Combined Effects of Fixed & Volatile Carbon Poster presented at the 16th Directions in Engine-Efficiency and Emissions Research...

90

In the Target Area  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

6 22 | Next | Last Back to Index NIF Target Chamber A service system lift allows technicians to access the target chamber interior for inspection and maintenance. Photo Number:...

91

DEPARTMENT OF PHYSICS Physics 32100  

E-Print Network [OSTI]

DEPARTMENT OF PHYSICS Syllabus Physics 32100 Modern Physics for Engineers Designation to one- electron atoms, atomic shell structure and periodic table; nuclear physics, relativity. Prerequisites: Prereq.: Physics 20800 or equivalent, Math 20300 or 20900 (elective for Engineering students

Lombardi, John R.

92

DEPARTMENT OF PHYSICS Physics 21900  

E-Print Network [OSTI]

DEPARTMENT OF PHYSICS Syllabus Physics 21900 Physics for Architecture Students Designation suggested material: Giancoli, Physics, Principles with Applications (6th ed.) (required), Prentice Hall Giancoli, Physics, Principles with Applications, Student Guide (6th ed.) (optional), Prentice Hall Course

Lombardi, John R.

93

DEPARTMENT OF PHYSICS Physics 20300  

E-Print Network [OSTI]

DEPARTMENT OF PHYSICS Syllabus Physics 20300 General Physics Designation: Required Undergraduate Catalog description: For majors in the life sciences (biology, medicine, dentistry, psychology, physical therapy) and for liberal arts students. Fundamental ideas and laws of physics from mechanics to modern

Lombardi, John R.

94

Many-body state engineering using measurements and fixed unitary dynamics  

E-Print Network [OSTI]

We develop a scheme to prepare a desired state or subspace in high-dimensional Hilbert-spaces using repeated applications of a single static projection operator onto the desired target and fixed unitary dynamics. Benchmarks against other control schemes, performed on generic Hamiltonians and on Bose-Hubbard systems, establish the competitiveness of the method. As a concrete application of the control of mesoscopic atomic samples in optical lattices we demonstrate the near deterministic preparation of Schr\\"{o}dinger cat states of all atoms residing on either the odd or the even sites.

Mads Kock Pedersen; Jens Jakob W. H. Sřrensen; Malte C. Tichy; Jacob F. Sherson

2014-11-20T23:59:59.000Z

95

First SNS Target Replacement  

E-Print Network [OSTI]

First SNS Target Replacement Experience M. Dayton, M. Rennich, Van Graves, J. DeVore Presented by T.S. Department of Energy AHIP Workshop Oct. 2009 Overview · Initial Target Replacement · Target Maintenance-Battelle for the U.S. Department of Energy AHIP Workshop Oct. 2009 First SNS Target Replacement · Replacement

McDonald, Kirk

96

MECO Production Target Developments  

E-Print Network [OSTI]

be reoptimized Tungsten target Simulations of design parameters with GEANT3 indicate that both production targetMECO Production Target Developments James L. Popp University of California, Irvine NuFact'03 Columbia, June, 2003 #12;June, 2003J.L.Popp, UCI MECO Production Target 2 MECO Collaboration Institute

McDonald, Kirk

97

Fixed Space of Positive Trace-Preserving Super-Operators  

E-Print Network [OSTI]

We examine the fixed space of positive trace-preserving super-operators. We describe a specific structure that this space must have and what the projection onto it must look like. We show how these results, in turn, lead to an alternative proof of the complete characterization of the fixed space of completely positive trace-preserving super-operators.

Ansis Rosmanis

2011-09-15T23:59:59.000Z

98

Steady periodic waves bifurcating for fixed-depth rotational flows  

E-Print Network [OSTI]

-current interactions [29, 37] or flows generated by wind-shear [30] (see [6] for a comprehensive discussion than the mass-flux. It is important to note that fixing the mass-flux p0 does not fix the depth d

99

Adaptive MFR Parameter Control: Fixed vs. Variable Probabilities of Detection  

E-Print Network [OSTI]

probability on measurement level, i.c. plot level, should be fixed. This is done either by fixing.boers,hans.driessen,jitse.zwaga}@nl.thalesgroup.com keywords: Multi Function Radar, Tracking, Optimization Abstract In this paper an efficient adaptive parameter control scheme for Multi Function Radar (MFR) is used. The scheme has been designed in such a way

Al Hanbali, Ahmad

100

Classification of two dimensional fixed sun angle solar sail trajectories  

E-Print Network [OSTI]

Classification of two dimensional fixed sun angle solar sail trajectories Stephen Wokes, Phil heliocentric trajectories for fixed sun angle solar sails are examined. The objective of this work (lightness factor) and Sun angle this phase space shows all possible solar sail trajectories. This phase

Roberts, Mark

Note: This page contains sample records for the topic "fixed target physics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Portfolio optimization with linear and fixed transaction costs  

E-Print Network [OSTI]

Portfolio optimization with linear and fixed transaction costs Miguel Sousa Lobo1 Maryam Fazel2 optimization with linear and fixed transaction costs Abstract We consider the problem of portfolio selection of the return, and bounds on different shortfall probabilities are efficiently handled by convex optimization

102

CONSTRUCTION OF MULTIPLY FIXED n-VALUED MAPS  

E-Print Network [OSTI]

CONSTRUCTION OF MULTIPLY FIXED n-VALUED MAPS Robert F. Brown Department of Mathematics University of California Los Angeles, CA 90095-1555 e-mail: rfb@math.ucla.edu September 29, 2014 Abstract A self-map, either single-valued or multi-valued, is multiply fixed if every map homotopic to it has at least two

Brown, Robert F.

103

PRESSURIZATION OF FIXED ROOF STORAGE TANKS DUE TO EXTERNAL FIRES  

E-Print Network [OSTI]

PRESSURIZATION OF FIXED ROOF STORAGE TANKS DUE TO EXTERNAL FIRES Fabien FouiHen, INERIS, Parc. Reflections led on this accident have pushed to consider the phenomenon of tank pressurization as a potential initiating event of the fire ball observed. In concrete terms, when a fixed roof storage tank is surrounded

Paris-Sud XI, Université de

104

Polarized internal target apparatus  

DOE Patents [OSTI]

A polarized internal target apparatus with a polarized gas target of improved polarization and density achieved by mixing target gas atoms with a small amount of alkali metal gas atoms, and passing a high intensity polarized light source into the mixture to cause the alkali metal gas atoms to become polarized which interact in spin exchange collisions with target gas atoms yielding polarized target gas atoms.

Holt, Roy J. (Downers Grove, IL)

1986-01-01T23:59:59.000Z

105

Polarized internal target apparatus  

DOE Patents [OSTI]

A polarized internal target apparatus with a polarized gas target of improved polarization and density (achieved by mixing target gas atoms with a small amount of alkali metal gas atoms, and passing a high intensity polarized light source into the mixture to cause the alkali metal gas atoms to become polarized which interact in spin exchange collisions with target gas atoms yielding polarized target gas atoms) is described.

Holt, R.J.

1984-10-10T23:59:59.000Z

106

Physics at an upgraded proton driver at Fermilab  

SciTech Connect (OSTI)

The accelerator-based particle physics program in the US is entering a period of transition. This is particularly true at Fermilab which for more than two decades has been the home of the Tevatron Proton-Antiproton Collider, the World's highest energy hadron collider. In a few years time the energy frontier will move to the LHC at CERN. Hence, if an accelerator-based program is to survive at Fermilab, it must evolve. Fermilab is fortunate in that, in addition to hosting the Tevatron Collider, the laboratory also hosts the US accelerator-based neutrino program. The recent discovery that neutrino flavors oscillate has opened a new exciting world for us to explore, and has created an opportunity for the Fermilab accelerator complex to continue to address the cutting-edge questions of particle physics beyond the Tevatron Collider era. The presently foreseen neutrino oscillation experiments at Fermilab (MiniBooNE [1] and MINOS [2]) will enable the laboratory to begin contributing to the Global oscillation physics program in the near future, and will help us better understand the basic parameters describing the oscillations. However, this is only a first step. To be able to pin down all of the oscillation parameters, and hopefully make new discoveries along the way, we will need high statistics experiments, which will require a very intense neutrino beam, and one or more very massive detectors. In particular we will require new MW-scale primary proton beams and perhaps ultimately a Neutrino Factory [3]. Plans to upgrade the Fermilab Proton Driver are presently being developed [4]. The upgrade project would replace the Fermilab Booster with a new 8 GeV accelerator with 0.5-2 MW beam power, a factor of 15-60 more than the current Booster. It would also make the modifications needed to the Fermilab Main Injector (MI) to upgrade it to simultaneously provide 120 GeV beams of 2 MW. This would enable a factor of 5-10 increase in neutrino beam intensities at the MI, while also supporting a vigorous 8 GeV fixed-target program. In addition, a Proton Driver might also serve as a stepping-stone to future accelerators, both as an R&D test bed and as an injector, with connections to the Linear Collider, Neutrino Factories, and a VLHC. Hence, although neutrino physics would provide the main thrust for the science program at an upgraded Fermilab proton source, the new facility would also offer exciting opportunities for other fixed-target particle physics (kaons, muons, neutrons, antiprotons, etc.) and a path towards new accelerators in the future.

Steve Geer

2004-07-28T23:59:59.000Z

107

Magnetically attached sputter targets  

DOE Patents [OSTI]

An improved method and assembly for attaching sputtering targets to cathode assemblies of sputtering systems which includes a magnetically permeable material is described. The magnetically permeable material is imbedded in a target base that is brazed, welded, or soldered to the sputter target, or is mechanically retained in the target material. Target attachment to the cathode is achieved by virtue of the permanent magnets and/or the pole pieces in the cathode assembly that create magnetic flux lines adjacent to the backing plate, which strongly attract the magnetically permeable material in the target assembly. 11 figures.

Makowiecki, D.M.; McKernan, M.A.

1994-02-15T23:59:59.000Z

108

HPC Requirements: Target 2014  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Basic Energy Sciences (BES) Biological and Environmental Science (BER) Fusion Energy Sciences (FES) High Energy Physics (HEP) Nuclear Physics (NP) Overview Published Reports Case...

109

On the continuum limit of gauge-fixed compact U(1) lattice gauge theory  

E-Print Network [OSTI]

We investigate the continuum limit of a compact formulation of the lattice U(1) gauge theory in 4 dimensions using a nonperturbative gauge-fixed regularization. We find clear evidence of a continuous phase transition in the pure gauge theory for all values of the gauge coupling (with gauge symmetry restored). When probed with quenched staggered fermions with U(1) charge, the theory clearly has a chiral transition for large gauge couplings. We identify the only possible region in the parameter space where a continuum limit with nonperturbative physics may appear.

Subhasish Basak; Asit K De; Tilak Sinha

2003-11-26T23:59:59.000Z

110

In the Target Area  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

8 22 | Next | Last Back to Index NIF Target A NIF target contains a polished capsule about two millimeters in diameter, filled with cryogenic (super-cooled) hydrogen fuel. Photo...

111

In the Target Area  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

5 22 | Next | Last Back to Index NIF Target Chamber This view from the bottom of the chamber shows the target positioner being inserted. Pulses from NIF's high-powered lasers...

112

In the Target Area  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

9 22 | Next | Last Back to Index NIF Hohlraum A metallic case called a hohlraum holds the fuel capsule for NIF experiments. Target handling systems precisely position the target...

113

In the Target Area  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3 22 | Next | Last Back to Index NIF Target Chamber Temperatures of 100 million degrees and pressures extreme enough to compress the target to densities up to 100 times the...

114

In the Target Area  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

to Index Target Chamber Viewing Window A new viewing window recently installed on the NIF Target Chamber will allow members of the NIF team and visitors to see inside the...

115

Total effective dose equivalent associated with fixed uranium surface contamination  

SciTech Connect (OSTI)

This report provides the technical basis for establishing a uranium fixed-contamination action level, a fixed uranium surface contamination level exceeding the total radioactivity values of Appendix D of Title 10, Code of Federal Regulations, part 835 (10CFR835), but below which the monitoring, posting, and control requirements for Radiological Areas are not required for the area of the contamination. An area of fixed uranium contamination between 1,000 dpm/100 cm{sup 2} and that level corresponding to an annual total effective dose equivalent (TEDE) of 100 mrem requires only routine monitoring, posting to alert personnel of the contamination, and administrative control. The more extensive requirements for monitoring, posting, and control designated by 10CFR835 for Radiological Areas do not have to be applied for these intermediate fixed-contamination levels.

Bogard, J.S.; Hamm, R.N.; Ashley, J.C.; Turner, J.E.; England, C.A.; Swenson, D.E.; Brown, K.S.

1997-04-01T23:59:59.000Z

116

Fixing Embryos for In Situ Hybridization Leslie Vosshall  

E-Print Network [OSTI]

with a piece of nylon attached by the hollowed-out lid of the tube) in a small Tupperware container. Using and gently dry the bottom. Use a paint brush to transfer all dechorionated embryos to the fix. Embryos

117

Orlando Utilities Commission- Home Energy Efficiency Fix-Up Program  

Broader source: Energy.gov [DOE]

Orlando Utilities Commission's Home Energy Fix-Up Program provides assistance to low-income residential customers. To qualify for the program the total annual family income must be less than $40...

118

High Power Cryogenic Targets  

SciTech Connect (OSTI)

The development of high power cryogenic targets for use in parity violating electron scattering has been a crucial ingredient in the success of those experiments. As we chase the precision frontier, the demands and requirements for these targets have grown accordingly. We discuss the state of the art, and describe recent developments and strategies in the design of the next generation of these targets.

Gregory Smith

2011-08-01T23:59:59.000Z

119

@Why Physics Comprehensive Physics Major.  

E-Print Network [OSTI]

@Why Physics Comprehensive Physics Major. From the basic laws of physics to the resulting emergent behavior, physics studies what the universe is made of and how it works. As a Physics major that surrounds us, to the structure and evolution of the entire universe. We offer three degrees in Physics

Yoo, S. J. Ben

120

Contamination effects on fixed-bias Langmuir probes  

SciTech Connect (OSTI)

Langmuir probes are standard instruments for plasma density measurements on many sounding rockets. These probes can be operated in swept-bias as well as in fixed-bias modes. In swept-bias Langmuir probes, contamination effects are frequently visible as a hysteresis between consecutive up and down voltage ramps. This hysteresis, if not corrected, leads to poorly determined plasma densities and temperatures. With a properly chosen sweep function, the contamination parameters can be determined from the measurements and correct plasma parameters can then be determined. In this paper, we study the contamination effects on fixed-bias Langmuir probes, where no hysteresis type effect is seen in the data. Even though the contamination is not evident from the measurements, it does affect the plasma density fluctuation spectrum as measured by the fixed-bias Langmuir probe. We model the contamination as a simple resistor-capacitor circuit between the probe surface and the plasma. We find that measurements of small scale plasma fluctuations (meter to sub-meter scale) along a rocket trajectory are not affected, but the measured amplitude of large scale plasma density variation (tens of meters or larger) is attenuated. From the model calculations, we determine amplitude and cross-over frequency of the contamination effect on fixed-bias probes for different contamination parameters. The model results also show that a fixed bias probe operating in the ion-saturation region is affected less by contamination as compared to a fixed bias probe operating in the electron saturation region.

Steigies, C. T. [Institut fuer Experimentelle und Angewandte Physik, Christian-Albrechts-Universitaet zu Kiel, 24098 Kiel (Germany); Barjatya, A. [Department of Physical Sciences, Embry-Riddle Aeronautical University, Daytona Beach, Florida 32114 (United States)

2012-11-15T23:59:59.000Z

Note: This page contains sample records for the topic "fixed target physics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Designing high power targets with computational fluid dynamics (CFD)  

SciTech Connect (OSTI)

High power liquid hydrogen (LH2) targets, up to 850 W, have been widely used at Jefferson Lab for the 6 GeV physics program. The typical luminosity loss of a 20 cm long LH2 target was 20% for a beam current of 100 ?A rastered on a square of side 2 mm on the target. The 35 cm long, 2500 W LH2 target for the Qweak experiment had a luminosity loss of 0.8% at 180 ?A beam rastered on a square of side 4 mm at the target. The Qweak target was the highest power liquid hydrogen target in the world and with the lowest noise figure. The Qweak target was the first one designed with CFD at Jefferson Lab. A CFD facility is being established at Jefferson Lab to design, build and test a new generation of low noise high power targets.

Covrig, S. D. [Thomas Jefferson National Laboratory, Newport News, VA 23606 (United States)

2013-11-07T23:59:59.000Z

122

Radioactive Target Detection Using Wireless Sensor Network  

E-Print Network [OSTI]

. By using the physical law for nuclear radiation isotopes, this chapter proposes a statistical method for wireless sensor network data to detect and locate a hidden nuclear target in a large study area. The method shown that the proposed method is effective and efficient in detection and location of the nuclear

Zhang, Tonglin

123

Manufacturing complex silica aerogel target components  

SciTech Connect (OSTI)

Aerogel is a material used in numerous components in High Energy Density Physics targets. In the past these components were molded into the proper shapes. Artifacts left in the parts from the molding process, such as contour irregularities from shrinkage and density gradients caused by the skin, have caused LANL to pursue machining as a way to make the components.

Defriend Obrey, Kimberly Ann [Los Alamos National Laboratory; Day, Robert D [Los Alamos National Laboratory; Espinoza, Brent F [Los Alamos National Laboratory; Hatch, Doug [Los Alamos National Laboratory; Patterson, Brian M [Los Alamos National Laboratory; Feng, Shihai [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

124

Reactor Physics  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Reactor Physics Reactor and nuclear physics is a key area of research at INL. Much of the research done in reactor physics can be separated into one of three categories:...

125

DEPARTMENT OF PHYSICS Physics 32300  

E-Print Network [OSTI]

DEPARTMENT OF PHYSICS Syllabus Physics 32300 Quantum Mechanics for Engineers Designation: required for Physics majors in the Applied Physics Option Undergraduate Catalog description: Basic experiments, wave: Physics 20700 and 20800, Math 39100 and Math 39200 Textbook and other suggested material: Scherrer

Lombardi, John R.

126

DEPARTMENT OF PHYSICS Physics 42200  

E-Print Network [OSTI]

DEPARTMENT OF PHYSICS Syllabus Physics 42200 Biophysics Designation: Undergraduate Catalog and membranes. In depth study of the physical basis of selected systems including vision, nerve transmission. Prerequisites: Prereq.: 1 yr. of Math, 1 yr. of Physics (elective for Physics Majors and Biomedical Engineering

Lombardi, John R.

127

Stray thermal influences in zinc fixed-point cells  

SciTech Connect (OSTI)

The influence of thermal effects is a major uncertainty contribution to the calibration of Standard Platinum Resistance Thermometers (SPRTs) in fixed-point cells. Axial heat losses strongly depend on the fixed-point temperature, constructional details of cells and SPRTs and the resulting heat transfer between cell, thermometer, furnace and environment. At the zinc point contributions by heat conduction and thermal radiation must be considered. Although the measurement of temperature gradients in the re-entrant well of a fixed-point cell provides very important information about the influence of axial heat losses, further investigations are required for a reliable estimate of the resulting uncertainty contribution. It is shown that specific modifications of a zinc fixed-point cell, following generally accepted principles, may result in systematic deviations of the measured fixed-point temperatures larger than typically stated in the uncertainty budget of National Metrology Institutes (NMIs). The underlying heat transport processes are investigated and the consequences for the construction of zinc cells are discussed.

Rudtsch, S.; Aulich, A.; Monte, C. [Physikalisch-Technische Bundesanstalt (PTB), Abbestr. 2-12, 10587 Berlin (Germany)] [Physikalisch-Technische Bundesanstalt (PTB), Abbestr. 2-12, 10587 Berlin (Germany)

2013-09-11T23:59:59.000Z

128

Proceedings of the workshop on polarized targets in storage rings  

SciTech Connect (OSTI)

Polarization phenomena have played an increasingly important part in the study of nuclei and nucleons in recent years. Polarization studies have been hampered by the relatively few and rather fragile polarized targets which are presently available. The concept of polarized gas targets in storage rings opens a much wider range of possibilities than is available in the external target geometry. This novel method will represent a considerable advance in nuclear physics and will continue to receive much attention in plans for future facilities. An internal, polarized-target station is being planned for the cooler ring at the Indiana University Cyclotron Facility. Internal targets are compatible with recent designs of electron accelerators proposed by the Massachusetts Institute of Technology and the Southeastern Universities Research Association. The key to nuclear-science programs based on internal targets pivots on recent developments in polarized atomic beam methods, which include the more recent laser-driven polarized targets. The workshop drew together a unique group of physicists in the fields of high-energy, nuclear and atomic physics. The meeting was organized in a manner that stimulated discussion among the 58 participants and focused on developments in polarized target technology and the underlying atomic physics. An impressive array of future possibilities for polarized targets as well as current developments in polarized target technology were discussed at the workshop. Abstracts of individual items from the workshop were prepared separately for the data base.

Holt, R.J. (ed.)

1984-08-01T23:59:59.000Z

129

Target Cost Management Strategy  

E-Print Network [OSTI]

Target cost management (TCM) is an innovation of Japanese management accounting system and by common sense has been considered with great interest by practitioners. Nowadays, TCM related

Okano, Hiroshi

1996-01-01T23:59:59.000Z

130

assays targeting formyltetrahydrofolate: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Tovesson, F; Towell, D; Towell, R S; Watson, S; Wendt, B; Wood, L 2013-01-01 34 MECO Production Target Developments Physics Websites Summary: channel & thin containment tube costs...

131

Policy Flash 2015-02 INCREMENTALLY FUNDING FIXED-PRICE ACTIONS...  

Office of Environmental Management (EM)

02 INCREMENTALLY FUNDING FIXED-PRICE ACTIONS Policy Flash 2015-02 INCREMENTALLY FUNDING FIXED-PRICE ACTIONS Questions concerning this policy flash should be directed to Michael...

132

Unique Thylakoid Membrane Architecture of aUnicellular N2-Fixing...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Unique Thylakoid Membrane Architecture of aUnicellular N2-Fixing Cyanobacterium Revealedby Electron Tomography. Unique Thylakoid Membrane Architecture of aUnicellular N2-Fixing...

133

Computing the apparent centroid of radar targets  

SciTech Connect (OSTI)

A high-frequency multibounce radar scattering code was used as a simulation platform for demonstrating an algorithm to compute the ARC of specific radar targets. To illustrate this simulation process, several targets models were used. Simulation results for a sphere model were used to determine the errors of approximation associated with the simulation; verifying the process. The severity of glint induced tracking errors was also illustrated using a model of an F-15 aircraft. It was shown, in a deterministic manner, that the ARC of a target can fall well outside its physical extent. Finally, the apparent radar centroid simulation based on a ray casting procedure is well suited for use on most massively parallel computing platforms and could lead to the development of a near real-time radar tracking simulation for applications such as endgame fuzing, survivability, and vulnerability analyses using specific radar targets and fuze algorithms.

Lee, C.E.

1996-12-31T23:59:59.000Z

134

Fixed-Node Diffusion Monte Carlo of Lithium Systems  

E-Print Network [OSTI]

We study lithium systems over a range of number of atoms, e.g., atomic anion, dimer, metallic cluster, and body-centered cubic crystal by the diffusion Monte Carlo method. The calculations include both core and valence electrons in order to avoid any possible impact by pseudo potentials. The focus of the study is the fixed-node errors, and for that purpose we test several orbital sets in order to provide the most accurate nodal hyper surfaces. We compare our results to other high accuracy calculations wherever available and to experimental results so as to quantify the the fixed-node errors. The results for these Li systems show that fixed-node quantum Monte Carlo achieves remarkably high accuracy total energies and recovers 97-99 % of the correlation energy.

Rasch, Kevin

2015-01-01T23:59:59.000Z

135

Conjugate Directions in Lattice Landau and Coulomb Gauge Fixing  

E-Print Network [OSTI]

We provide details expanding on our implementation of a non-linear conjugate gradient method with Fourier acceleration for lattice Landau and Coulomb gauge fixing. We find clear improvement over the Fourier accelerated steepest descent method, with the average time taken for the algorithm to converge to a fixed, high accuracy, being reduced by a factor of 2 to 4. We show such improvement for the logarithmic definition of the gauge fields here, having already shown this to be the case for a more common definition. We also discuss the implementation of an optimal Fourier accelerated steepest descent method.

R. J. Hudspith

2014-12-08T23:59:59.000Z

136

Measurement of thermodynamic temperature of high temperature fixed points  

SciTech Connect (OSTI)

The paper is devoted to VNIIOFI's measurements of thermodynamic temperature of the high temperature fixed points Co-C, Pt-C and Re-C within the scope of the international project coordinated by the Consultative Committee for Thermometry working group 5 'Radiation Thermometry'. The melting temperatures of the fixed points were measured by a radiance mode radiation thermometer calibrated against a filter radiometer with known irradiance spectral responsivity via a high temperature black body. This paper describes the facility used for the measurements, the results and estimated uncertainties.

Gavrilov, V. R.; Khlevnoy, B. B.; Otryaskin, D. A.; Grigorieva, I. A.; Samoylov, M. L.; Sapritsky, V. I. [All-Russian Research Institute for Optical and Physical Measurements (VNIIOFI), 46 Ozernaya St., Moscow 119361 (Russian Federation)] [All-Russian Research Institute for Optical and Physical Measurements (VNIIOFI), 46 Ozernaya St., Moscow 119361 (Russian Federation)

2013-09-11T23:59:59.000Z

137

Neutrino Factory Target Vessel  

E-Print Network [OSTI]

by UT-Battelle for the U.S. Department of Energy Target Vessel Update 26 June 2012 Cooling Channel in both walls for draining · Downstream end can be shortened, assuming the window cooling is adequate #12;11 Managed by UT-Battelle for the U.S. Department of Energy Target Vessel Update 26 June 2012 Remote Handling

McDonald, Kirk

138

E-Print Network 3.0 - argon 38 target Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Processing, Vol. 22, No. 3, September 2002 ( 2002) Comparative Calorimetric Study of ICP Generator with Summary: are popular targets for physical and numerical modeling....

139

E-Print Network 3.0 - ags spallation target Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

carried out to analyze and design... a Lead-Bismuth spallation target for driving a subcritical ... Source: McDonald, Kirk - Department of Physics, Princeton University...

140

DEPARTMENT OF PHYSICS Physics 35400  

E-Print Network [OSTI]

DEPARTMENT OF PHYSICS Syllabus Physics 35400 Electricity and Magnetism II Designation potentials and radiation, special relativity. 3 HR./WK.; 3 CR. Prerequisites: Prereq.: Physics 35300; pre- or coreq.: Math 39200 (required for Physics majors, except those in the Biomedical Option). Textbook

Lombardi, John R.

Note: This page contains sample records for the topic "fixed target physics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Type-Based Termination, Inflationary Fixed-Points, and  

E-Print Network [OSTI]

Type-Based Termination, Inflationary Fixed-Points, and Mixed Inductive-Coinductive Types Andreas Science (FICS 2012) ETAPS 2012, Tallinn, Estonia 24 March 2012 Andreas Abel (LMU) Type-Based Termination AIM XV 1 / 1 #12;Introduction Aspects of Termination What the talk is about: foundational approach

Abel, Andreas

142

obligations. When these products are obtained at fixed prices  

E-Print Network [OSTI]

al. have failed to properly analyze these fixed- price full-requirements load- following products and Andrew Lemon, Power Procurement: What's in Your Mix?, PUB. UTIL. FORTNIGHTLY, Nov. 2006, at 50. 4. Load-following of generation assets in New England has become less concentrated following the use of load-following products

Gross, George

143

Experimental Cooperative Control of Fixed-Wing Unmanned Aerial Vehicles  

E-Print Network [OSTI]

Experimental Cooperative Control of Fixed-Wing Unmanned Aerial Vehicles Selcuk Bayraktar, Georgios architecture (Cloud cap technologies) Hybrid Modeling (of the Piccolo autopilot) Experiments Autonomous Flight - 20min #12;UAVs @ Penn Servos controlling the payload LaptopPC Dell X200 3.5HP fuel engine Deployable

Fainekos, Georgios E.

144

Sailplane glide performance and control using fixed and articulating winglets  

E-Print Network [OSTI]

performance was increased at low Reynolds numbers. The effects on the lift and drag, yawing moment, pitching moment, and wing root bending moment of the model are presented. Oil flows were used on the wing model with the fixed geometry winglet...

Colling, James David

2012-06-07T23:59:59.000Z

145

WORKING PAPER N 2013 24 Regional Policy Evaluation: Interactive Fixed  

E-Print Network [OSTI]

s. Keywords: Policy evaluation, Linear factor models, Synthetic controls, Economic geographyWORKING PAPER N° 2013 ­ 24 Regional Policy Evaluation: Interactive Fixed Effects and Synthetic Controls Laurent Gobillon Thierry Magnac JEL Codes: C21, C23, H53, J64, R11 Keywords: Policy evaluation

Paris-Sud XI, Université de

146

Mercury/Waterfilling for Fixed Wireless OFDM Angel Lozano  

E-Print Network [OSTI]

Mercury/Waterfilling for Fixed Wireless OFDM Systems Angel Lozano Bell Labs (Lucent Technologies- mation is then given by the more general mercury/waterfilling policy. This paper illustrates the usance of mercury/waterfilling on frequency-selective OFDM channels with QAM constellations and it quantifies

VerdĂş, Sergio

147

Coherence Progress: A Measure of Interestingness Based on Fixed Compressors  

E-Print Network [OSTI]

has been investigated in various ways in the literature, ranging from early work by Wundt [9] (seeCoherence Progress: A Measure of Interestingness Based on Fixed Compressors Tom Schaul, Leo Pape in observations to store them in a compact form, called a compressor. The search for interesting patterns can

Schmidhuber, Juergen

148

Particle physics with the computer Eliane Epple eliane.epple@ph.tum.de,  

E-Print Network [OSTI]

within this lab were collected with the High Acceptance Di-Electron Spectrometer (HADES) see fig 2. It is a fixed target Figure 2: On the left side an exploded view of the HADES spectrometer is shown

149

Recent developments in zinc oxide target chemistry  

SciTech Connect (OSTI)

Zinc oxide targets irradiated with high energy protons at the Los Alamos Meson Physics Facility (LAMPF) contain a number of radioactive spallation products in quantities large enough to warrant recovery. This paper describes methods for recovering {sup 7}Be, {sup 46}Sc, and {sup 48}V from such targets and offers suggestions on possible ways to recover additional isotopes. The proposed methods are based on traditional precipitation and ion exchange techniques, are readily adaptable to hot cell use, and produce no hazardous waste components. The products are obtained in moderate to high yields and have excellent radiopurity.

Heaton, R.C.; Taylor, W.A.; Phillips, D.R.; Jamriska, D.J. Sr.; Garcia, J.B.

1994-04-01T23:59:59.000Z

150

14.6 CLOSE-OUT OF FIXED PRICE CONTRACTS Auditors recently have identified three problems with our practices regarding close-out of fixed-price  

E-Print Network [OSTI]

14.6 CLOSE-OUT OF FIXED PRICE CONTRACTS Auditors recently have identified three problems with our practices regarding close-out of fixed-price contracts when 10% or more of the budget remains in the account Principal Investigators to ensure that no more than 5% of the budget remains in a fixed-price contract

151

Wind-Induced Slow Fading in Foliated Fixed Wireless Links  

E-Print Network [OSTI]

.e., seasonal and fast fading [2-3]. The seasonal changes of physical characteristics of trees, i.e., on

Cambridge, University of

152

In the Target Area  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

1 22 | Next | Last Back to Index NIF Hohlraum This artist's rendering shows a NIF target pellet inside a hohlraum capsule with laser beams entering through openings on either...

153

In the Target Area  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

1 22 | Next | Last Back to Index NIF Target Chamber On March 10, 2009, at 3:15 a.m., a 192-beam laser shot delivered 1.1 million joules of ultraviolet light to the center of the...

154

SNS Target Systems Operational  

E-Print Network [OSTI]

a failed gas seal on the shaft and leaking oil seals but has operated well since then · The moderator 7.5 k First target replacement · No observed corrosion · Internal Boroscope examination in progress · ~ 50 mm

McDonald, Kirk

155

physics | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

physics physics Leads No leads are available at this time. 15N2 formation and fast oxygen isotope exchange during pulsed 15N18O exposure of MnOxCeO2. Abstract: Pulsing 15N18O onto...

156

Electroweak Physics  

E-Print Network [OSTI]

Work on electroweak precision calculations and event generators for electroweak physics studies at current and future colliders is summarized.

W. Hollik

2005-01-26T23:59:59.000Z

157

Infrared behavior and fixed-point structure in the compactified Ginzburg--Landau model  

E-Print Network [OSTI]

We consider the Euclidean $N$-component Ginzburg--Landau model in $D$ dimensions, of which $d$ ($d\\leq D$) of them are compactified. As usual, temperature is introduced through the mass term in the Hamiltonian. This model can be interpreted as describing a system in a region of the $D$-dimensional space, limited by $d$ pairs of parallel planes, orthogonal to the coordinates axis $x_1,\\,x_2,\\,...,\\,x_d$. The planes in each pair are separated by distances $L_1,\\;L_2,\\; ...,\\,L_d$. For $D=3$, from a physical point of view, the system can be supposed to describe, in the cases of $d=1$, $d=2$, and $d=3$, respectively, a superconducting material in the form of a film, of an infinitely long wire having a retangular cross-section and of a brick-shaped grain. We investigate in the large-$N$ limit the fixed-point structure of the model, in the absence or presence of an external magnetic field. An infrared-stable fixed point is found, whether of not an external magnetic field is applied, but for different ranges of values of the space dimension $ D$.

C. A. Linhares; A. P. C. Malbouisson; M. L. Souza

2011-02-07T23:59:59.000Z

158

Fixed bed testing of durable, steam resistant zinc oxide containing sorbents  

SciTech Connect (OSTI)

The US Department of Energy is currently developing Integrated Gasification combined Cycle (IGCC) systems for electrical power generation. It has been predicted that IGCC plants with hot gas cleanup will be superior to conventional pulverized coal-fired power plants in overall plant efficiency and environmental performance. Development of a suitable regenerable sorbent is a major barrier issue in the hot gas cleanup program for IGCC systems. This has been a challenging problem during the last 20 years, since many of the sorbents developed in the program could not retain their reactivity and physical integrity during repeated cycles of sulfidation and regeneration reactions. Two promising sorbents and (METC6), which were capable of sustaining their reactivity and physical integrity during repeated sulfidation/regeneration cycles, have been developed at the Morgantown Energy Technology Center (METC) during the past year. These sorbents were tested (sulfided) both in low-pressure (260 kPa/37.7 psia) and high-pressure (1034 kPa/150 psia) fixed-bed reactors at 538{degrees}C (1000{degrees}F) with simulated KRW coal gas. High-pressure testing was continued for 20 cycles with steam regeneration. There were no appreciable changes in sulfidation capacity of the sorbents during the 20-cycle testing. The crush strength of the sorbent actually improved after 20 cycles and there were no indications of spalling or any other physical deterioration of the sorbents. In testing to date, these sorbents exhibit better overall sulfur capture performance than the conventional sorbents.

Siriwardane, R.V.; Grimm, U.; Poston, J. [USDOE Morgantown Energy Technology Center, WV (United States); Monaco, S.J. [EG& G dTechnical Services of West Virginia, Inc., Morgantown, WV (United States)

1994-12-31T23:59:59.000Z

159

Development of a new radiometer for the thermodynamic measurement of high temperature fixed points  

SciTech Connect (OSTI)

The National Physical Laboratory (NPL) has developed a new radiometer to measure the thermodynamic melting point temperatures of high temperature fixed points with ultra-low uncertainties. In comparison with the NPL's Absolute Radiation Thermometer (ART), the 'THermodynamic Optical Radiometer' (THOR) is more portable and compact, with a much lower size-of-source effect and improved performance in other parameters such as temperature sensitivity. It has been designed for calibration as a whole instrument via the radiance method, removing the need to calibrate the individual subcomponents, as required by ART, and thereby reducing uncertainties. In addition, the calibration approach has been improved through a new integrating sphere that has been designed to have greater uniformity.

Dury, M. R.; Goodman, T. M.; Lowe, D. H.; Machin, G.; Woolliams, E. R. [National Physical Laboratory, Teddington (United Kingdom)] [National Physical Laboratory, Teddington (United Kingdom)

2013-09-11T23:59:59.000Z

160

More on the continuum limit of gauge-fixed compact U(1) lattice gauge theory  

E-Print Network [OSTI]

We have verified various proposals that were suggested in our last paper concerning the continuum limit of a compact formulation of the lattice U(1) pure gauge theory in 4 dimensions using a nonperturbative gauge-fixed regularization. Our study reveals that most of the speculations are largely correct. We find clear evidence of a continuous phase transition in the pure gauge theory at "arbitrarily" large couplings. When probed with quenched staggered fermions with U(1) charge, the theory clearly has a chiral transition for large gauge couplings whose intersection with the phase transition in the pure gauge theory continues to be a promising area for nonperturbative physics. We probe the nature of the continuous phase transition by looking at gauge field propagators in the momentum space and locate the region on the critical manifold where free photons can be recovered.

Asit K. De; Tilak Sinha

2005-06-30T23:59:59.000Z

Note: This page contains sample records for the topic "fixed target physics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Fixed points, stable manifolds, weather regimes, and their predictability  

DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

In a simple, one-layer atmospheric model, we study the links between low-frequency variability and the model’s fixed points in phase space. The model dynamics is characterized by the coexistence of multiple “weather regimes.” To investigate the transitions from one regime to another, we focus on the identification of stable manifolds associated with fixed points. We show that these manifolds act as separatrices between regimes. We track each manifold by making use of two local predictability measures arising from the meteorological applications of nonlinear dynamics, namely, “bred vectors” and singular vectors. These results are then verified in the framework of ensemble forecasts issued from “clouds” (ensembles) of initial states. The divergence of the trajectories allows us to establish the connections between zones of low predictability, the geometry of the stable manifolds, and transitions between regimes.

Deremble, Bruno; D'Andrea, Fabio; Ghil, Michael [Univ. of California, Los Angeles, CA (United Staes). Atmospheric and Oceanic Sciences and Institute of Geophysics and Planetary Physics

2009-10-27T23:59:59.000Z

162

Linear Collider Physics Resource Book Snowmass 2001  

SciTech Connect (OSTI)

The American particle physics community can look forward to a well-conceived and vital program of experimentation for the next ten years, using both colliders and fixed target beams to study a wide variety of pressing questions. Beyond 2010, these programs will be reaching the end of their expected lives. The CERN LHC will provide an experimental program of the first importance. But beyond the LHC, the American community needs a coherent plan. The Snowmass 2001 Workshop and the deliberations of the HEPAP subpanel offer a rare opportunity to engage the full community in planning our future for the next decade or more. A major accelerator project requires a decade from the beginning of an engineering design to the receipt of the first data. So it is now time to decide whether to begin a new accelerator project that will operate in the years soon after 2010. We believe that the world high-energy physics community needs such a project. With the great promise of discovery in physics at the next energy scale, and with the opportunity for the uncovering of profound insights, we cannot allow our field to contract to a single experimental program at a single laboratory in the world. We believe that an e{sup +}e{sup -} linear collider is an excellent choice for the next major project in high-energy physics. Applying experimental techniques very different from those used at hadron colliders, an e{sup +}e{sup -} linear collider will allow us to build on the discoveries made at the Tevatron and the LHC, and to add a level of precision and clarity that will be necessary to understand the physics of the next energy scale. It is not necessary to anticipate specific results from the hadron collider programs to argue for constructing an e{sup +}e{sup -} linear collider; in any scenario that is now discussed, physics will benefit from the new information that e{sup +}e{sup -} experiments can provide. This last point merits further emphasis. If a new accelerator could be designed and built in a few years, it would make sense to wait for the results of each accelerator before planning the next one. Thus, we would wait for the results from the Tevatron before planning the LHC experiments, and wait for the LHC before planning any later stage. In reality accelerators require a long time to construct, and they require such specialized resources and human talent that delay can cripple what would be promising opportunities. In any event, we believe that the case for the linear collider is so compelling and robust that we can justify this facility on the basis of our current knowledge, even before the Tevatron and LHC experiments are done. The physics prospects for the linear collider have been studied intensively for more than a decade, and arguments for the importance of its experimental program have been developed from many different points of view. This book provides an introduction and a guide to this literature. We hope that it will allow physicists new to the consideration of linear collider physics to start from their own personal perspectives and develop their own assessments of the opportunities afforded by a linear collider.

Ronan (Editor), M.T.

2001-06-01T23:59:59.000Z

163

Modeling for Anaerobic Fixed-Bed Biofilm Reactors  

SciTech Connect (OSTI)

The specific objectives of this research were: 1. to develop an equilibrium model for chemical aspects of anaerobic reactors; 2. to modify the equilibrium model for non-equilibrium conditions; 3. to incorporate the existing biofilm models into the models above to study the biological and chemical behavior of the fixed-film anaerobic reactors; 4. to experimentally verify the validity of these models; 5. to investigate the biomass-holding ability of difference packing materials for establishing reactor design criteria.

Liu, B. Y. M.; Pfeffer, J. T.

1989-06-01T23:59:59.000Z

164

Optimization Studies for ISOL Type High-Powered Targets  

SciTech Connect (OSTI)

The research studied one-step and two-step Isotope Separation on Line (ISOL) targets for future radioactive beam facilities with high driver-beam power through advanced computer simulations. As a target material uranium carbide in the form of foils was used because of increasing demand for actinide targets in rare-isotope beam facilities and because such material was under development in ISAC at TRIUMF when this project started. Simulations of effusion were performed for one-step and two step targets and the effects of target dimensions and foil matrix were studied. Diffusion simulations were limited by availability of diffusion parameters for UCx material at reduced density; however, the viability of the combined diffusion?effusion simulation methodology was demonstrated and could be used to extract physical parameters such as diffusion coefficients and effusion delay times from experimental isotope release curves. Dissipation of the heat from the isotope-producing targets is the limiting factor for high-power beam operation both for the direct and two-step targets. Detailed target models were used to simulate proton beam interactions with the targets to obtain the fission rates and power deposition distributions, which were then applied in the heat transfer calculations to study the performance of the targets. Results indicate that a direct target, with specification matching ISAC TRIUMF target, could operate in 500-MeV proton beam at beam powers up to ~40 kW, producing ~8 1013 fission/s with maximum temperature in UCx below 2200 C. Targets with larger radius allow higher beam powers and fission rates. For the target radius in the range 9-mm to 30-mm the achievable fission rate increases almost linearly with target radius, however, the effusion delay time also increases linearly with target radius.

Remec, Igor [Oak Ridge National Laboratory] [Oak Ridge National Laboratory; Ronningen, Reginald Martin [Michigan State University] [Michigan State University

2013-09-24T23:59:59.000Z

165

Hybrid-drive implosion system for ICF targets  

DOE Patents [OSTI]

Hybrid-drive implosion systems (20,40) for ICF targets (10,22,42) are described which permit a significant increase in target gain at fixed total driver energy. The ICF target is compressed in two phases, an initial compression phase and a final peak power phase, with each phase driven by a separate, optimized driver. The targets comprise a hollow spherical ablator (12) surroundingly disposed around fusion fuel (14). The ablator is first compressed to higher density by a laser system (24), or by an ion beam system (44), that in each case is optimized for this initial phase of compression of the target. Then, following compression of the ablator, energy is directly delivered into the compressed ablator by an ion beam driver system (30,48) that is optimized for this second phase of operation of the target. The fusion fuel (14) is driven, at high gain, to conditions wherein fusion reactions occur. This phase separation allows hydrodynamic efficiency and energy deposition uniformity to be individually optimized, thereby securing significant advantages in energy gain. In additional embodiments, the same or separate drivers supply energy for ICF target implosion.

Mark, James W. (Danville, CA)

1988-01-01T23:59:59.000Z

166

Hybrid-drive implosion system for ICF targets  

DOE Patents [OSTI]

Hybrid-drive implosion systems for ICF targets are described which permit a significant increase in target gain at fixed total driver energy. The ICF target is compressed in two phases, an initial compression phase and a final peak power phase, with each phase driven by a separate, optimized driver. The targets comprise a hollow spherical ablator surroundingly disposed around fusion fuel. The ablator is first compressed to higher density by a laser system, or by an ion beam system, that in each case is optimized for this initial phase of compression of the target. Then, following compression of the ablator, energy is directly delivered into the compressed ablator by an ion beam driver system that is optimized for this second phase of operation of the target. The fusion fuel is driven, at high gain, to conditions wherein fusion reactions occur. This phase separation allows hydrodynamic efficiency and energy deposition uniformity to be individually optimized, thereby securing significant advantages in energy gain. In additional embodiments, the same or separate drivers supply energy for ICF target implosion. 3 figs.

Mark, J.W.K.

1987-10-14T23:59:59.000Z

167

Charm Physics at Fermilab E791  

E-Print Network [OSTI]

Experiment 791 at Fermilab's Tagged Photon Laboratory has just accumulated a high statistics charm sample by recording 20 billion events on 24000 8mm tapes. A 500 GeV/c pi- beam was used with a fixed target and a magnetic spectrometer which now includes 23 silicon fixed target and a magnetic spectrometer which now includes 23 silicon microstrip planes for vertex reconstruction. A new data acquisition system read out 9000 events/sec during the part of the Tevatron cycle that delivered beam. Digitization and readout took 50 uS per event. Data was buffered in eight large FIFO memories to allow continuous event building and continuous tape writing to a wall of 42 Exabytes at 9.6 MB/sec. The 50 terabytes of data buffered to tape is now being filtered on RISC CPUs. Preliminary results show D0 --> K- pi+ and D+ --> K- pi+ pi+ decays. Rarer decays will be pursued.

Fermilab E791 Collaboration; D. J. Summers

2000-09-06T23:59:59.000Z

168

Foam encapsulated targets  

DOE Patents [OSTI]

Foam encapsulated laser-fusion targets wherein a quantity of thermonuclear fuel is embedded in low density, microcellular foam which serves as an electron conduction channel for symmetrical implosion of the fuel by illumination of the target by one or more laser beams. The fuel, such as DT, is contained within a hollow shell constructed of glass, for example, with the foam having a cell size of preferably no greater than 2 .mu.m, a density of 0.065 to 0.6.times.10.sup.3 kg/m.sup.3, and external diameter of less than 200 .mu.m.

Nuckolls, John H. (Livermore, CA); Thiessen, Albert R. (Livermore, CA); Dahlbacka, Glen H. (Livermore, CA)

1983-01-01T23:59:59.000Z

169

Target | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to:Seadov Pty LtdSteen,Ltd Jump to:Taos County, New Mexico: EnergyTarget GmbH Jump to:Target

170

Physics results from dynamical overlap fermion simulations  

E-Print Network [OSTI]

I summarize the physics results obtained from large-scale dynamical overlap fermion simulations by the JLQCD and TWQCD collaborations. The numerical simulations are performed at a fixed global topological sector; the physics results in the theta-vacuum is reconstructed by correcting the finite volume effect, for which the measurement of the topological susceptibility is crucial. Physics applications we studied so far include a calculation of chiral condensate, pion mass, decay constant, form factors, as well as (vector and axial-vector) vacuum polarization functions and nucleon sigma term.

Shoji Hashimoto

2008-11-08T23:59:59.000Z

171

Physics Fellow  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

as Institute of Physics Fellow January 18, 2011 LOS ALAMOS, New Mexico, January 18, 2011-Alan Bishop, Los Alamos National Laboratory's associate director for theory, simulation,...

172

Targeted radionuclide therapy  

SciTech Connect (OSTI)

Targeted radionuclide therapy (TRT) seeks molecular and functional targets within patient tumor sites. A number of agents have been constructed and labeled with beta, alpha, and Auger emitters. Radionuclide carriers spanning a broad range of sizes; e.g., antibodies, liposomes, and constructs such as nanoparticles have been used in these studies. Uptake, in percent-injected dose per gram of malignant tissue, is used to evaluate the specificity of the targeting vehicle. Lymphoma (B-cell) has been the primary clinical application. Extension to solid tumors will require raising the macroscopic absorbed dose by several-fold over values found in present technology. Methods that may effect such changes include multistep targeting, simultaneous chemotherapy, and external sequestration of the agent. Toxicity has primarily involved red marrow so that marrow replacement can also be used to enhance future TRT treatments. Correlation of toxicities and treatment efficiency has been limited by relatively poor absorbed dose estimates partly because of using standard (phantom) organ sizes. These associations will be improved in the future by obtaining patient-specific organ size and activity data with hybrid SPECT/CT and PET/CT scanners.

Williams, Lawrence E.; DeNardo, Gerald L.; Meredith, Ruby F. [Radiology Division, City of Hope National Medical Center, Duarte, California 91010 (United States); Internal Medicine, University of California Davis Medical Center, 1508 Alhambra Boulevard, Suite 3100, Sacramento, California 95816 (United States); Department of Radiation Oncology, Wallace Tumor Institute WTI No. 117, University of Alabama at Birmingham, Birmingham, Alabama 35294 (United States)

2008-07-15T23:59:59.000Z

173

arXiv:hepex/0603047 Polarization of and in 920 GeV Fixed-Target Proton-Nucleus Collisions  

E-Print Network [OSTI]

. Pleier 13 , M. Poli 6;31 , V. Popov 22 , D. Pose 11;14 , S. Prystupa 16 , V. Pugatch 16 , Y. Pylypchenko

174

ISAC target vacuum system  

SciTech Connect (OSTI)

The Isotope Separator and Accelerator (ISAC) facility at TRIUMF has been in full operation since 1999. The ISAC east and west targets use proton beam from the cyclotron to produce various radioactive isotopes, which are then ionized and extracted. The ions are then passed through the mass separator and selected ions are transferred to the low energy experiments or injected into a radio frequency quadrupole accelerator. The accompanying radioactive contamination from the production of radioactive ions requires a complex vacuum system. The main target vacuum space consists of two semiseparate (primary and secondary) volumes pumped by turbo-molecular pumps. The primary volume uses four pumps while the secondary volume uses two pumps. Two hermetic rotary vane pumps are used as backing pumps. The nominal vacuum in both volumes is about 1.33x10{sup -4} Pa (1.0x10{sup -6} Torr). The pressure is monitored by two cold cathode and two hot filament ion gauges. The cold cathode gauges are used to interlock the system, which is critical during the bake out of the target and beam production. The exhaust gas from the vacuum pumps can be radioactive. Three gas storage tanks (decay tanks) are used for temporary storage of the radioactive exhaust and its controlled release to the atmosphere. Gas-species insensitive membrane gauges are used for monitoring the pressure in the storage tanks. This article describes the details of the ISAC target vacuum system as well as some procedures related to the handling of the exhaust gas with traces of radioactive contamination produced by the targets.

Yosifov, Dimo; Sekachev, Igor [TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, British Columbia V6T 2A3 (Canada)

2006-07-15T23:59:59.000Z

175

Solid Target Options S. Childress  

E-Print Network [OSTI]

power is higher than for existing solid target designs - but not by a large factor. · NuMI graphite beam power) · High beam power solid targets frequently use higher z materials for increased yield plusSolid Target Options NuFACT'00 S. Childress Solid Target Options · The choice of a primary beam

McDonald, Kirk

176

Surface tension in bilayer membranes with fixed projected area  

E-Print Network [OSTI]

We study the elastic response of bilayer membranes with fixed projected area to both stretching and shape deformations. A surface tension is associated to each of these deformations. By using model amphiphilic membranes and computer simulations, we are able to observe both the types of deformation, and thus, both the surface tensions, related to each type of deformation, are measured for the same system. These surface tensions are found to assume different values in the same bilayer membrane: in particular they vanish for different values of the projected area. We introduce a simple theory which relates the two quantities and successfully apply it to the data obtained with computer simulations.

Alberto Imparato

2006-04-05T23:59:59.000Z

177

Remarks on a fixed point theorem of Caristi  

E-Print Network [OSTI]

1977) David Lee Egle, B . S . , Pan American University Chairman of Advisory Committee: L. F. Guseman, Jr. Let (X, d) be a complete metric space and f a selfmap of X. It is shown that various known theorems on the existence of fixed and periodic..., &) is a partially ordered set. Let x c X. Define a set M by A = lA : A C X, x c A, and A is totally ordered&. Order M by set inclusion; that is, A Q B iff A C B. Let ( g, 6 ) be a chain in Af, and let B= UA Ac (g, g) Clearly, x c B and 8 L: X. Let a...

Egle, David Lee

2012-06-07T23:59:59.000Z

178

AAC R14-2 - Fixed Utilities | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 East 300 SouthWater Rights,Information Of TheFixed Utilities Jump to: navigation,

179

Biodegradation of xenobiotics in a fixed bed reactor  

SciTech Connect (OSTI)

The specific example of an at-source biological wastewater treatment has been elaborated and developed. A two-phase fixed-bed bioreactor system was tested for its efficiency using phenol as a test substance and then, the degradation of sodium anthraquinone-2-sulfonate (SAS) was studied and performed. The continuous aerobic degradation of phenol or SAS as the sole source of carbon was investigated. For SAS degradation with an immobilized mixed bacterial culture, industrial activated sludge was used as inoculum, while for phenol a domestic activated sludge from a municipal wastewater treatment plant and activated Actizym-sludge prepared with Actizym[sup [reg sign

Seignez, C.; Mottier, V.; Pulgarin, C.; Adler, N.; Peringer, P. (Swiss Federal Institute of Tech., Lausanne (Switzerland))

1993-11-01T23:59:59.000Z

180

LINEAR COLLIDER PHYSICS RESOURCE BOOK FOR SNOWMASS 2001.  

SciTech Connect (OSTI)

The American particle physics community can look forward to a well-conceived and vital program of experimentation for the next ten years, using both colliders and fixed target beams to study a wide variety of pressing questions. Beyond 2010, these programs will be reaching the end of their expected lives. The CERN LHC will provide an experimental program of the first importance. But beyond the LHC, the American community needs a coherent plan. The Snowmass 2001 Workshop and the deliberations of the HEPAP subpanel offer a rare opportunity to engage the full community in planning our future for the next decade or more. A major accelerator project requires a decade from the beginning of an engineering design to the receipt of the first data. So it is now time to decide whether to begin a new accelerator project that will operate in the years soon after 2010. We believe that the world high-energy physics community needs such a project. With the great promise of discovery in physics at the next energy scale, and with the opportunity for the uncovering of profound insights, we cannot allow our field to contract to a single experimental program at a single laboratory in the world. We believe that an e{sup +}e{sup {minus}} linear collider is an excellent choice for the next major project in high-energy physics. Applying experimental techniques very different from those used at hadron colliders, an e{sup +}e{sup {minus}} linear collider will allow us to build on the discoveries made at the Tevatron and the LHC, and to add a level of precision and clarity that will be necessary to understand the physics of the next energy scale. It is not necessary to anticipate specific results from the hadron collider programs to argue for constructing an e{sup +}e{sup {minus}} linear collider; in any scenario that is now discussed, physics will benefit from the new information that e{sup +}e{sup {minus}} experiments can provide.

ABE,T.; DAWSON,S.; HEINEMEYER,S.; MARCIANO,W.; PAIGE,F.; TURCOT,A.S.; ET AL

2001-05-03T23:59:59.000Z

Note: This page contains sample records for the topic "fixed target physics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Physics & Astronomy Degree options  

E-Print Network [OSTI]

148 Physics & Astronomy Degree options BSc (Single Honours Degrees) Astrophysics Physics MPhys (Single Honours Degrees) Astrophysics Physics Theoretical Physics BSc (Joint Honours Degrees) Physics) Theoretical Physics and Mathematics MSci (Joint Honours Degree) Physics and Chemistry Entrance Requirements

Brierley, Andrew

182

Utilisation de theor`emes de point fixe. Par Nicolas Lanchier 1  

E-Print Network [OSTI]

Utilisation de th´eor`emes de point fixe. Par Nicolas Lanchier 1 1 Th´eor`emes de point fixe. D´efinition 1.1 -- On appelle point fixe de f : X - X tout ´el´ement X tel que f() = . Th´eor`eme 1.2 (point point fixe. [4], Sect. 1.2 Th´eor`eme 1.3 -- Soient X un espace complet et f : X - X une application. S

Lanchier, Nicolas

183

A Lesson Learned on Determination of Radionuclides on Metal Surface Fixed Contamination  

SciTech Connect (OSTI)

A Measurement of fixed surface contamination required to determine classification as low-level or as transuranic waste.

MEZNARICH, H.K.

2000-02-01T23:59:59.000Z

184

Water-cooled pyrolytic graphite targets at LAMPF: design and operation  

SciTech Connect (OSTI)

Design considerations and actual operating experience are reported for water-cooled pyrolytic graphite targets at the Clinton P. Anderson Meson Physics Facility (LAMPF). Emphasis is placed on the use of finite element computer calculations to determine target temperatures and stresses, which can then be evaluated to judge the usefulness of a particular design. Consideration is also given to the swelling of the target following irradiation, and to the measures taken to prolong target lifetime.

Brown, R.D.; Grisham, D.L.

1981-01-01T23:59:59.000Z

185

EMSL - physics  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

physics en 15N2 formation and fast oxygen isotope exchange during pulsed 15N18O exposure of MnOxCeO2. http:www.emsl.pnl.govemslwebpublications15n2-formation-and-fast-oxygen-i...

186

Physical Scientist  

Broader source: Energy.gov [DOE]

A successful candidate in this position will serve as the Senior Headquarters (HQ) Physical Scientist for the Carbon Storage Program. The Carbon Storage Program focuses on the development of...

187

Theoretical Physics  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

a hierarchy problem? Are there new physical principles at the TeV scale? Is the Higgs boson a fundamental particle or composite, like a pion? What is the final state of...

188

Physical Scientist  

Broader source: Energy.gov [DOE]

The Office of Science is the single largest supporter of basic research in the physical sciences in the United States, providing more than 40 percent of total funding for this vital area of...

189

Precision nuclear targets for Drell-Yan cross section measurements at 800 GeV  

SciTech Connect (OSTI)

Targets of iron, tungsten, carbon, and calcium of areal densities 2.3 to 5.8 g/cm/sup 2/ were fabricated to high precision for a fixed-target experiment performed in 1988 at Fermilab to measure relative Drell-Yan cross sections. The experiment used 800-GeV protons at an intensity of 2 x 10/sup 12/ protons per 23-second spill. Areal densities were determined to an accuracy of approximately 1 part in 10/sup 4/. The calcium targets were vacuum-encapsulated in stainless steel by electron-beam welding. 1 ref., 5 figs., 4 tabs.

Gursky, J.C.; Baer, H.; Flick, F.F.; Gallegos, D.

1988-01-01T23:59:59.000Z

190

Should mobile Internet services be an extension of the fixed Internet? Context-of-use, fixed-mobile reinforcement and personal innovativeness  

E-Print Network [OSTI]

reinforcement and personal innovativeness Mark de Reuver Faculty Technology, Policy and Management Delft Innovation & Interaction Utrecht, The Netherlands Harry Bouwman Faculty Technology, Policy and ManagementShould mobile Internet services be an extension of the fixed Internet? Context-of-use, fixed-mobile

Twente, Universiteit

191

Physics Division annual review, April 1, 1988--March 31, 1989  

SciTech Connect (OSTI)

This document discusses the following main topics: Research at Atlas; Operation and Development of Atlas; Medium-Energy Nuclear Physics and Weak Interactions; Theoretical Nuclear Physics; Interactions of Fast Atomic and Molecular Ions with Solid and Gaseous Targets; Atomic Physics at Synchrotron Light Sources; Atomic Physics at Atlas and the ECR Source; Theoretical Atomic Physics; High-Resolution Laser-rf Spectroscopy of Atomic and Molecular Beams; and Fast Ion-Beam/Laser Studies of Atomic and Molecular Structure.

Thayer, K.J. (ed.)

1989-08-01T23:59:59.000Z

192

Physics Based on Physical Monism  

E-Print Network [OSTI]

Based on a physical monism, which holds that the matter and space are classified by not a difference of their kind but a difference of magnitude of their density, I derive the most fundamental equation of motion, which is capable of providing a deeper physical understanding than the known physics. For example, this equation answers to the substantive reason of movement, and Newton's second law, which has been regarded as the definition of force, is derived in a substantive level from this equation. Further, the relativistic energy-mass formula is generalized to include the potential energy term, and the Lorentz force and Maxwell equations are newly derived.

Seong-Dong Kim

2005-09-08T23:59:59.000Z

193

Grate assembly for fixed-bed coal gasifier  

DOE Patents [OSTI]

A grate assembly for a coal gasifier of a moving-bed or fixed-bed type is provided for crushing agglomerates of solid material such as clinkers, tailoring the radial distribution of reactant gases entering the gasification reaction zone, and control of the radial distribution of downwardly moving solid velocities in the gasification and combustion zone. The clinker crushing is provided by pinching clinkers between vertically oriented stationary bars and angled bars supported on the upper surface of a rotating conical grate. The distribution of the reactant gases is provided by the selective positioning of horizontally oriented passageways extending through the grate. The radial distribution of the solids is provided by mounting a vertically and generally radially extending scoop mechanism on the upper surface of the grate near the apex thereof.

Notestein, John E. (Morgantown, WV)

1993-01-01T23:59:59.000Z

194

Liner/target/CMU cassette design and fabrication  

SciTech Connect (OSTI)

As part of an ongoing collaboration in pulsed power technology and condensed matter shock physics with RFNCNNIIEF, the initial design for the target and central measuring unit (CMU) for a high-pressure, high-precision ({approx}1 %), Hugoniot, equation of state (EOS) experiment is shown. VNIIEF would design and construct the disk explosive magnetic generator (DEMG) with peak currents {approx}100 MA, and cylindrical liner system with peak velocity {approx}10-20 km/s. LANL would design and construct the target and velocimetry diagnostic system. The initial mechanical design features a 2 cm diameter target system and a 1 cm diameter CMU with 32 lines of sight for PDV.

Griego, Jeffrey Randall [Los Alamos National Laboratory

2011-01-07T23:59:59.000Z

195

Flight Path Target 2  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest Region service area. TheEPSCI HomeTours, Programs and2 This flight2 Target 2

196

Advanced Target Effects Modeling  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAbout the BuildingInnovation PortalScience of SignaturesAdvanced Target

197

Rotating Target Development for SNS Second Target Station  

SciTech Connect (OSTI)

A rotating target for the second target station (STS) at SNS has been identified as an option along with a mercury target. Evaluation of the rotating target alternative for STS has started at 1.5 MW which is considered an upper bound for the power. Previous preconceptual design work for a 3 MW rotating target is being modified for the lower power level. Transient thermal analysis for a total loss of active water cooling has been done for a simplified 2D model of the target and shielding monolith which shows that peak temperatures are well below the level at which tungsten vaporization by steam could exceed site boundary dose limits. Design analysis and integration configuration studies have been done for the target-moderator-reflector assembly which maximizes the number of neutron beam lines and provides for replacement of the target and moderators. Target building hot cell arrangement for this option will be described. An option for operation in rough vacuum without a proton beam window using Ferro fluid seals on a vertical shaft is being developed. A full scale prototypic drive module based on the 3 MW preconceptual design has been fabricated and successfully tested with a shaft and mock up target supplied by the ESS-Bilbao team. Overall planning leading to decision between mercury and the rotating target in 2011 will be discussed

McManamy, Thomas J [ORNL; Rennich, Mark J [ORNL; Crawford, Roy K [ORNL; Geoghegan, Patrick J [ORNL; Janney, Jim G [ORNL

2010-01-01T23:59:59.000Z

198

Proceedings of the Tungsten Workshop for Hard Target Weapons Program  

SciTech Connect (OSTI)

The purpose of this meeting was to review and exchange information and provide technical input for improving technologies relevant to the Hard Target Weapons Program. This workshop was attended by representatives from 17 organizations, including 4 Department of Defense (DoD) agencies, 8 industrial companies, and 5 laboratories within DOE. Hard targets are defined as reinforced underground structures that house enemy forces, weapon systems, and support equipment. DOE-ORO and Martin Marietta Energy Systems, Inc. (Energy Systems) have been involved in advanced materials research and development (R&D) for several DOE and DoD programs. These programs are conducted in close collaboration with Eglin AFB, Department of the Army`s Picatinny Arsenal, and other DoD agencies. As part of this ongoing collaboration, Eglin AFB and Oak Ridge National Laboratory planned and conducted this workshop to support the Hard Target Weapons Program. The objectives of this workshop were to (1) review and identify the technology base that exists (primarily due to anti-armor applications) and assess the applicability of this technology to the Hard Target Weapons Program requirements; (2) determine future directions to establish the W materials, processing, and manufacturing technologies suitable for use in fixed, hard target penetrators; and (3) identify and prioritize the potential areas for technical collaboration among the participants.

Mackiewicz-Ludtka, G.; Hayden, H.W.; Davis, R.M.

1995-06-01T23:59:59.000Z

199

REVIEW OF PARTICLE PHYSICS  

E-Print Network [OSTI]

ONLINE PARTICLE PHYSICS INFORMATION 1.3. Particle Physics Information Platforms . . . . . . . . .14. Particle Physics Education and Outreach

Beringer, Juerg

2013-01-01T23:59:59.000Z

200

Review of Particle Physics  

E-Print Network [OSTI]

11. Particle Physics Education Sites . . . . . . . . .ONLINE PARTICLE PHYSICS INFORMATION 1.11. Particle Physics Education Sites . . . . . . . . . . 12.

Nakamura, Kenzo

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "fixed target physics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Planetary Physics  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

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202

Plasma Physics  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest RegionatSearch Welcome to theNews & Blog »Physics PhysicsWeekPlasma

203

PDFs for nuclear targets  

E-Print Network [OSTI]

Understanding nuclear effects in parton distribution functions (PDF) is an essential component needed to determine the strange and anti-strange quark contributions in the proton. In addition Nuclear Parton Distribution Functions (NPDF) are critically important for any collider experiment with nuclei (e.g. RHIC, ALICE). Here two next-to-leading order chi^2-analyses of NPDF are presented. The first uses neutral current charged-lepton Deeply Inelastic Scattering (DIS) and Drell-Yan data for several nuclear targets and the second uses neutrino-nucleon DIS data. We compare the nuclear corrections factors (F_2^Fe/F_2^D) for the charged-lepton data with other results from the literature. In particular, we compare and contrast fits based upon the charged-lepton DIS data with those using neutrino-nucleon DIS data.

Karol Kovarik

2010-06-25T23:59:59.000Z

204

INSTITUTE OF PHYSICS PUBLISHING PLASMA PHYSICS AND CONTROLLED FUSION Plasma Phys. Control. Fusion 44 (2002) 15811607 PII: S0741-3335(02)35590-8  

E-Print Network [OSTI]

the confinement quality, as measured by, for example, the plasma total energy content at fixed heating powerINSTITUTE OF PHYSICS PUBLISHING PLASMA PHYSICS AND CONTROLLED FUSION Plasma Phys. Control. Fusion rotational transform a, the confinement quality of plasmas in the Wendelstein 7-AS (W7-AS) stellarator

Basse, Nils Plesner

205

Physical Protection  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

This Manual establishes requirements for the physical protection of interests under the U.S. Department of Energys (DOEs) purview ranging from facilities, buildings, Government property, and employees to national security interests such as classified information, special nuclear material (SNM), and nuclear weapons. Cancels Section A of DOE M 470.4-2 Chg 1. Canceled by DOE O 473.3.

2009-07-23T23:59:59.000Z

206

GLOBAL GLACIAL ISOSTATIC ADJUSTMENT: TARGET FIELDS FOR SPACE GEODESY  

E-Print Network [OSTI]

GLOBAL GLACIAL ISOSTATIC ADJUSTMENT: TARGET FIELDS FOR SPACE GEODESY W.R. Peltier Department of Physics, University of Toronto, Toronto, Ontario, Canada M5S-1A7 peltier) and Sabadini and Peltier (1981) whose analysis was based upon the application of a homogeneous viscoelastic

Peltier, W. Richard

207

Ash level meter for a fixed-bed coal gasifier  

DOE Patents [OSTI]

An ash level meter for a fixed-bed coal gasifier is provided which utilizes the known ash level temperature profile to monitor the ash bed level. A bed stirrer which travels up and down through the extent of the bed ash level is modified by installing thermocouples to measure the bed temperature as the stirrer travels through the stirring cycle. The temperature measurement signals are transmitted to an electronic signal process system by an FM/FM telemetry system. The processing system uses the temperature signals together with an analog stirrer position signal, taken from a position transducer disposed to measure the stirrer position to compute the vertical location of the ash zone upper boundary. The circuit determines the fraction of each total stirrer cycle time the stirrer-derived bed temperature is below a selected set point, multiplies this fraction by the average stirrer signal level, multiplies this result by an appropriate constant and adds another constant such that a 1 to 5 volt signal from the processor corresponds to a 0 to 30 inch span of the ash upper boundary level. Three individual counters in the processor store clock counts that are representative of: (1) the time the stirrer temperature is below the set point (500.degree. F.), (2) the time duration of the corresponding stirrer travel cycle, and (3) the corresponding average stirrer vertical position. The inputs to all three counters are disconnected during any period that the stirrer is stopped, eliminating corruption of the measurement by stirrer stoppage.

Fasching, George E. (Morgantown, WV)

1984-01-01T23:59:59.000Z

208

Flame quality monitor system for fixed firing rate oil burners  

DOE Patents [OSTI]

A method and apparatus for determining and indicating the flame quality, or efficiency of the air-fuel ratio, in a fixed firing rate heating unit, such as an oil burning furnace, is provided. When the flame brightness falls outside a preset range, the flame quality, or excess air, has changed to the point that the unit should be serviced. The flame quality indicator output is in the form of lights mounted on the front of the unit. A green light indicates that the flame is about in the same condition as when the burner was last serviced. A red light indicates a flame which is either too rich or too lean, and that servicing of the burner is required. At the end of each firing cycle, the flame quality indicator goes into a hold mode which is in effect during the period that the burner remains off. A yellow or amber light indicates that the burner is in the hold mode. In this mode, the flame quality lights indicate the flame condition immediately before the burner turned off. Thus the unit can be viewed when it is off, and the flame condition at the end of the previous firing cycle can be observed.

Butcher, Thomas A. (Pt. Jefferson, NY); Cerniglia, Philip (Moriches, NY)

1992-01-01T23:59:59.000Z

209

Evolutions in 3D numerical relativity using fixed mesh refinement  

E-Print Network [OSTI]

We present results of 3D numerical simulations using a finite difference code featuring fixed mesh refinement (FMR), in which a subset of the computational domain is refined in space and time. We apply this code to a series of test cases including a robust stability test, a nonlinear gauge wave and an excised Schwarzschild black hole in an evolving gauge. We find that the mesh refinement results are comparable in accuracy, stability and convergence to unigrid simulations with the same effective resolution. At the same time, the use of FMR reduces the computational resources needed to obtain a given accuracy. Particular care must be taken at the interfaces between coarse and fine grids to avoid a loss of convergence at higher resolutions, and we introduce the use of "buffer zones" as one resolution of this issue. We also introduce a new method for initial data generation, which enables higher-order interpolation in time even from the initial time slice. This FMR system, "Carpet", is a driver module in the freely available Cactus computational infrastructure, and is able to endow generic existing Cactus simulation modules ("thorns") with FMR with little or no extra effort.

Erik Schnetter; Scott H. Hawley; Ian Hawke

2004-03-02T23:59:59.000Z

210

Isolated thermocouple amplifier system for stirred fixed-bed gasifier  

DOE Patents [OSTI]

A sensing system is provided for determining the bed temperature profile of the bed of a stirred, fixed-bed gasifier including a plurality of temperature sensors for sensing the bed temperature at different levels, a transmitter for transmitting data based on the outputs of the sensors to a remote operator's station, and a battery-based power supply. The system includes an isolation amplifier system comprising a plurality of isolation amplifier circuits for amplifying the outputs of the individual sensors. The isolation amplifier circuits each comprise an isolation operational amplifier connected to a sensor; a first "flying capacitor" circuit for, in operation, controlling the application of power from the power supply to the isolation amplifier; an output sample and hold circuit connected to the transmitter; a second "flying capacitor" circuit for, in operation, controlling the transfer of the output of the isolation amplifier to the sample and hold circuit; and a timing and control circuit for activating the first and second capacitor circuits in a predetermined timed sequence.

Fasching, George E. (Morgantown, WV)

1992-01-01T23:59:59.000Z

211

Closeout Report: Experimental High Energy Physics Group at the University of South Alabama  

SciTech Connect (OSTI)

The High Energy Physics group at the University of South Alabama has been supported by this research grant (DE-FG02-96ER40970) since 1996. One researcher, Dr. Merrill Jenkins, has been supported on this grant during this time worked on fixed target experiments at the Fermi National Accelerator Laboratory, west of Chicago, Illinois. These experiments have been E-705, E-771, E-871 (HyperCP) and E-921 (CKM) before it was canceled for budgetary reasons. After the cancellation of CKM, Dr. Jenkins joined the Compact Muon Solenoid (CMS) experiment as an associate member via the High Energy Physics Group at the Florida State University. A second, recently tenured faculty member, Dr. Romulus Godang joined the group in 2009 and has been supported by this grant since then. Dr. Godang is working on the BaBaR experiment at SLAC and has joined the Belle-II experiment located in Japan at KEK. According to the instructions sent to us by our grant monitor, we are to concentrate on the activities over the last three years in this closeout report.

Jenkins, Charles M; Godang, Romulus

2013-06-25T23:59:59.000Z

212

Fixed-bed bioreactor system for the microbial solubilization of coal  

DOE Patents [OSTI]

A fixed-bed bioreactor system for the conversion of coal into microbially solubilized coal products. The fixed-bed bioreactor continuously or periodically receives coal and bio-reactants and provides for the large scale production of microbially solubilized coal products in an economical and efficient manner. An oxidation pretreatment process for rendering coal uniformly and more readily susceptible to microbial solubilization may be employed with the fixed-bed bioreactor. 1 fig., 1 tab.

Scott, C.D.; Strandberg, G.W.

1987-09-14T23:59:59.000Z

213

Experiments in Physics Physics 1291  

E-Print Network [OSTI]

of the Laboratory The laboratory experiments described in this manual are an important part of your physics course-3 Velocity, Acceleration, and g 35 1-4 Projectile Motion and Conservation of Energy 45 1-5 Conservation. Whenever possible, the material will have been discussed in lecture before you come to the laboratory

Columbia University

214

Experiments in Physics Physics 1291  

E-Print Network [OSTI]

and Conservation of Energy 97 1-9 Standing Waves 105 1-10 Specific Heat and Mechanical Equivalent of Heat 115 #12;#12;Introduction 1-0 General Instructions 1 Purpose of the Laboratory The laboratory experiments described in this manual are an important part of your physics course. Most of the experiments are designed to illustrate

Columbia University

215

Experiments in Physics Physics 1291  

E-Print Network [OSTI]

The laboratory experiments described in this manual are an important part of your physics course. Most-8 Projectile Motion and Conservation of Energy 97 1-9 Standing Waves 105 1-10 Specific Heat and Mechanical Equivalent of Heat 115 #12;#12;Introduction 1-0 General Instructions 1 Purpose of the Laboratory

Columbia University

216

Genome-wide Expression Assay Comparison Across Frozen and Fixed Postmortem Brain Tissue Samples  

E-Print Network [OSTI]

Continued) B6207 Control M Heart attack/disease Frozen B6756Fixed B6208 Control F Heart attack/disease Frozen B4756

2011-01-01T23:59:59.000Z

217

EM Finds Success with Fixed-Priced Hybrid Contract Approach Benefittin...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

fixed-priced procurements in the future, and some may involve a new combination of contracting strategies proven successful at the Hanford site. The Hanford success story marked...

218

Robert Lemos, News.com, 2004.12.01: "Microsoft rushes out critical IE fix  

E-Print Network [OSTI]

saves it for later. See, e.g., phpWebSite security hole fixed 2004.11.16. #12;Mixed-source command lines

Bernstein, Daniel

219

Off-peak summer performance enhancement for rows of fixed solar thermal collectors using reflective surfaces.  

E-Print Network [OSTI]

??The possibility of increasing the efficiency of fixed solar thermal collectors without greatly adding to the cost or complexity of the overall solar collection system… (more)

Armenta, Casiano

2011-01-01T23:59:59.000Z

220

E-Print Network 3.0 - aerated submerged fixed-film Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

January 2007 Summary: Trickling Filter - Facility type with fixed film bacteria. Wastewater is typically pumped up... TRANSFER EFFICIENCY MONITORING OF WASTEWATER AERATION...

Note: This page contains sample records for the topic "fixed target physics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Stochastic Quasi-Fejér Block-Coordinate Fixed Point Iterations with ...  

E-Print Network [OSTI]

Abstract. This work proposes block-coordinate fixed point algorithms with applications to nonlinear analysis and optimization in Hilbert spaces. The asymptotic ...

2014-05-28T23:59:59.000Z

222

Hypernuclear physics  

SciTech Connect (OSTI)

A brief overview of progress made in the study of hypernuclear physics is presented. The use of ..lambda..-hypernuclei to study properties of conventional (nonstrange) nuclei is explored. Our knowledge of the hyperon-nucleon force is reviewed. Anecdotal examples of interesting hypernuclear phenomena are discussed. The status of ..sigma..-hypernuclei is considered along with a search for the ''H'' dibaryon. 30 refs., 10 figs.

Gibson, B.F.

1987-01-01T23:59:59.000Z

223

Physical Protection  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

Establishes requirements for the physical protection of safeguards and security interests. Copies of Section B, Safeguards and Security Alarm Management System, which contains Unclassified Controlled Nuclear Information, and Appendix 1, Security Badge Specifications, which contains Official Use Only information, are only available, by request, from the program manager, Protection Program Operations, 301-903-6209. Cancels: DOE M 473.1-1 and DOE M 471.2-1B.

2005-08-26T23:59:59.000Z

224

Physical Protection  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

This Manual establishes requirements for the physical protection of safeguards and security interests. Copies of Section B, Safeguards and Security Alarm Management System, which contains Unclassified Controlled Nuclear Information, and Appendix 1, Security Badge Specifications, which contains Official Use Only information, are only available, by request, from the program manager, Protection Program Operations, 301-903-6209. Chg 1, dated 3/7/06. Cancels: DOE M 473.1-1 and DOE M 471.2-1B

2005-08-26T23:59:59.000Z

225

RELIABILITY BASED DESIGN OF FIXED FOUNDATION WIND TURBINES  

SciTech Connect (OSTI)

Recent analysis of offshore wind turbine foundations using both applicable API and IEC standards show that the total load demand from wind and waves is greatest in wave driven storms. Further, analysis of overturning moment loads (OTM) reveal that impact forces exerted by breaking waves are the largest contributor to OTM in big storms at wind speeds above the operating range of 25 m/s. Currently, no codes or standards for offshore wind power generators have been adopted by the Bureau of Ocean Energy Management Regulation and Enforcement (BOEMRE) for use on the Outer Continental Shelf (OCS). Current design methods based on allowable stress design (ASD) incorporate the uncertainty in the variation of loads transferred to the foundation and geotechnical capacity of the soil and rock to support the loads is incorporated into a factor of safety. Sources of uncertainty include spatial and temporal variation of engineering properties, reliability of property measurements applicability and sufficiency of sampling and testing methods, modeling errors, and variability of estimated load predictions. In ASD these sources of variability are generally given qualitative rather than quantitative consideration. The IEC 61400‐3 design standard for offshore wind turbines is based on ASD methods. Load and resistance factor design (LRFD) methods are being increasingly used in the design of structures. Uncertainties such as those listed above can be included quantitatively into the LRFD process. In LRFD load factors and resistance factors are statistically based. This type of analysis recognizes that there is always some probability of failure and enables the probability of failure to be quantified. This paper presents an integrated approach consisting of field observations and numerical simulation to establish the distribution of loads from breaking waves to support the LRFD of fixed offshore foundations.

Nichols, R.

2013-10-14T23:59:59.000Z

226

Photosensitizer Conjugates For Pathogen Targeting  

SciTech Connect (OSTI)

Conjugate molecules which include photosensitizer compositions conjugated to non-antibody non-affinity pair targeting moieties and methods of making and using such conjugates are described.

Hasan, Tayyaba (Arlington, MA); Hamblin, Michael R. (Revere, MA); Soukos, Nikos (Revere, MA)

2002-10-08T23:59:59.000Z

227

POLARIZED TARGET EXPERIMENT AT FERMILAB  

E-Print Network [OSTI]

on Experiment 61 at Fermilab, which is a large collaborationBernie Sandler, From From Fermilab. Alan Jonckheere andTARGET EXPERIMENT AT FERMILAB Owen Chamberlain January 1977

Chamberlain, O.

2010-01-01T23:59:59.000Z

228

Target Space Duality III: Potentials  

E-Print Network [OSTI]

We generalize previous results on target space duality to the case where there are background fields and the sigma model lagrangian has a potential function.

Orlando Alvarez; Blazej Ruszczycki

2007-12-31T23:59:59.000Z

229

Robust UAV Coordination for Target Tracking using Output-Feedback Model Predictive Control with Moving Horizon Estimation  

E-Print Network [OSTI]

Robust UAV Coordination for Target Tracking using Output-Feedback Model Predictive Control consider the control of two UAVs tracking an evasive moving ground vehicle. The UAVs are small fixed to maintain visibility. The control inputs to the UAVs are computed based on noisy measurements of the UAVs

Hespanha, JoĂŁo Pedro

230

A high power beam-on-target test of liquid lithium target for RIA.  

SciTech Connect (OSTI)

Experiments were conducted to demonstrate the stable operation of a windowless liquid lithium target under extreme thermal loads that are equivalent to uranium beams from the proposed Rare Isotope Accelerator (RIA) driver linac. The engineering and safety issues accompanying liquid lithium systems are first discussed. The liquid metal technology knowledge base generated primarily for fast reactors, and liquid metal cooled fusion reactors, was applied to the development of these systems in a nuclear physics laboratory setting. The use of a high energy electron beam for simulating a high power uranium beam produced by the RIA driver linac is also described. Calculations were performed to obtain energy deposition profiles produced by electron beams at up to a few MeV to compare with expected uranium beam energy deposition profiles. It was concluded that an experimental simulation using a 1-MeV electron beam would be a valuable tool to assess beam-jet interaction. In the experiments, the cross section of the windowless liquid lithium target was 5 mm x 10 mm, which is a 1/3rd scale prototype target, and the velocity of the liquid lithium was varied up to 6 m/s. Thermal loads up to 20 kW within a beam spot diameter of 1mm were applied on the windowless liquid lithium target by the 1-MeV electron beam. The calculations showed that the maximum power density and total power deposited within the target, from the electron beam, was equivalent to that of a 200-kW, 400-MeV/u uranium beam. It was demonstrated that the windowless liquid lithium target flowing at velocities as low as 1.8 m/s stably operated under beam powers up to 20 kW without disruption or excessive vaporization.

Nolen, J.; Reed, C.; Novick, V.; Specht, J.; Plotkin, P.; Momozaki,Y.; Gomes, I.

2005-08-29T23:59:59.000Z

231

Proceedings of the twelfth target fabrication specialists` meeting  

SciTech Connect (OSTI)

Research in fabrication for inertial confinement fusion (ICF) comprises at least three broad categories: targets for high energy density physics on existing drivers, ignition capsule fabrication, and cryogenic fuel layer formation. The latter two are being pursued primarily for the National Ignition Facility (NIF). Scientists from over 14 laboratories, universities, and businesses contributed over 100 papers on all aspects of ICF target fabrication. The NIF is well along in construction and photos of poured concrete and exposed steel added to the technical excitement. It was clear from the meeting that there has been significant progress toward the fabrication of an ignition target for NIF and that new techniques are resulting in higher quality targets for high energy density research.

NONE

1999-04-01T23:59:59.000Z

232

Physics and Astronomy Engineering/Physics Concentration  

E-Print Network [OSTI]

Physics and Astronomy Engineering/Physics Concentration Strongly recommended courses Credits Term Electromagnetic Fields & Waves 3 PHY 3230 Thermal Physics 3 PHY 4020 Computational Methods in Physics.) taken Grade PHY 4620 Optics 4 PHY 3211 Modern Physics II 3 PHY 4730 Analog Circuits 3 PHY 4640 Quantum

Thaxton, Christopher S.

233

Physics and Astronomy Radiation Safety Physics Concentration  

E-Print Network [OSTI]

Physics and Astronomy Radiation Safety Physics Concentration Strongly recommended courses Credits Environucleonics Lab 1 PHY 3211 Modern Physics II 3 PHY 3230 Thermal Physics 3 PHY 4330 Digital Electronics 3 PHY 4820 Medical Physics 3 CHE 1101 Intro. Chemistry I 3 CHE 1110 Intro. Chemistry I Lab 1 CHE 1102 Intro

Thaxton, Christopher S.

234

PHYSICS OF BURNING PHYSICS INACCESSIBLE TO  

E-Print Network [OSTI]

PHYSICS OF BURNING PLASMAS: PHYSICS INACCESSIBLE TO PRESENT FACILITIES FIRE Physics Workshop May 2000 F. Perkins and N. Sauthoff Princeton Plasma Physics Laboratory FIRE Workshop 1 May 2000 #12;OUTLINE · Introduction · Three Classes of Burning Plasma Physics inaccessable to contemporary tokamak

235

Department of Physics Department of Physics  

E-Print Network [OSTI]

Department of Physics Department of Physics Life Sciences Building 3101 S. Dearborn St. Chicago, IL 60616 312.567.3480 www.iit.edu/csl/physics Chair: Grant Bunder The Department of Physics offers B.S., M.S., and Ph.D. degrees in physics. Within the department, there are many opportunities for interdisciplinary

Heller, Barbara

236

314 Department of Physics Department of Physics  

E-Print Network [OSTI]

314 Department of Physics Department of Physics Physics, one of the basic sciences, has its origin led to the detailed understanding of a remarkable variety of physical phenomena. Our knowledge now comprehension of the physical world forms an impressive part of the intellectual and cultural heritage of our

Nagle, John F.

237

Physics (Phys) (Department of Physics and Engineering)  

E-Print Network [OSTI]

229Physics Physics (Phys) (Department of Physics and Engineering) McCormick Foundation PROFESSORSILU INSTRUCTOR CUMMING VISITING PROFESSOR BOLLER MAJORS A major in physics leading to a Bachelor of Science degree requires completion of 50 credits including the following: 1. Physics 111, 112, 113, 114, 210, 215

Dresden, Gregory

238

Department of Physics Department of Physics  

E-Print Network [OSTI]

Department of Physics Department of Physics Life Sciences Building 3101 S. Dearborn St. Chicago, IL 60616 312.567.3480 www.iit.edu/csl/physics Chair: Christopher White The Department of Physics offers B.S., M.S., and Ph.D. degrees in physics. Within the department, there are many opportunities

Heller, Barbara

239

Hadron physics  

SciTech Connect (OSTI)

Is all hadronic physics ultimately describable by QCD. Certainly, many disparate phenomena can be understood within the QCD framework. Also certainly, there are important questions which are open, both theoretically (little guidance, as yet) and experimentally, regarding confinement. Are there dibaryons, baryonium, glueballs. In addition, there are experimental results which at present do not have an explanation. This talk, after a short section on QCD successes and difficulties, will emphasize two experimental topics which have recent results - glueball spectroscopy and exclusive reactions at large momentum transfer. Both are experimentally accessible in the AGS/LAMPF II/AGS II/TRIUMF II/SIN II energy domain.

Bunce, G.

1984-05-30T23:59:59.000Z

240

Nuclear Physics  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratory | NationalJohnSecurityControls |Navy Nuclear NavyNuclear Physics

Note: This page contains sample records for the topic "fixed target physics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Improved techniques for studying the temporal and spatial behavior of fish in a fixed location  

E-Print Network [OSTI]

Improved techniques for studying the temporal and spatial behavior of fish in a fixed location John for studying the temporal and spatial behavior of fish in a fixed location. ­ ICES Journal of Marine Science, 60: 700­706. There are many situations when it is important to know accurately the behavior of fish

242

A Robust STATCOM Control to Augment LVRT capability of Fixed Speed Wind Turbines  

E-Print Network [OSTI]

A Robust STATCOM Control to Augment LVRT capability of Fixed Speed Wind Turbines M. J. Hossain, H Compensator (STATCOM) to enhance the Low-Voltage Ride- Through (LVRT) capability of fixed-speed wind turbines cost and maintenance due to rugged brushless construction. Constant speed wind turbines equipped

Pota, Himanshu Roy

243

Taxes-Fixed Price UT-B Contracts Div Page 1 of 1  

E-Print Network [OSTI]

Taxes-Fixed Price UT-B Contracts Div July 2006 Page 1 of 1 taxes-fp-ext-july06.doc TAXES--FIXED PRICE (July 2006) FEDERAL, STATE, AND LOCAL TAXES (a) Definitions. As used throughout this clause in this Agreement, the Agreement price includes all applicable Federal taxes in effect on the Agreement date. (c

Pennycook, Steve

244

A Rank-Corrected Procedure for Matrix Completion with Fixed Basis Coefficients  

E-Print Network [OSTI]

A Rank-Corrected Procedure for Matrix Completion with Fixed Basis Coefficients Weimin Miao, Shaohua address low-rank matrix completion problems with fixed basis coefficients, which include the low-rank correlation matrix completion in various fields such as the financial market and the low-rank density matrix

Chaudhuri, Sanjay

245

Energy-efficient Multicasting in Wireless Networks with Fixed Node Transmission Power  

E-Print Network [OSTI]

Energy-efficient Multicasting in Wireless Networks with Fixed Node Transmission Power Christos Computer Technology Institute, Greece manos@ceid.upatras.gr ABSTRACT In this work, we propose an energy-efficient are fixed. Our algorithm is based on the multicost approach and selects an optimal energy-efficient set

Varvarigo, Emmanouel "Manos"

246

Approximate Response Time for Fixed Priority Real-Time Systems with Energy-Harvesting  

E-Print Network [OSTI]

Approximate Response Time for Fixed Priority Real-Time Systems with Energy-Harvesting Yasmina sufficient schedulability tests for fixed-priority pre-emptive scheduling of a real-time system under energy constraints. In this problem, energy is harvested from the ambient environment and used to replenish a storage

Boyer, Edmond

247

Schedulability Analysis for Fixed Priority Real-Time Systems with Energy-Harvesting  

E-Print Network [OSTI]

Schedulability Analysis for Fixed Priority Real-Time Systems with Energy-Harvesting Yasmina sufficient schedulability tests for fixed-priority pre-emptive scheduling of a real-time system under energy constraints. In this problem, energy is harvested from the ambient environment and used to replenish a storage

Paris-Sud XI, Université de

248

A Systemic Design Methodology of PM Generators for Fixed-Pitch Marine Current Turbines  

E-Print Network [OSTI]

A Systemic Design Methodology of PM Generators for Fixed-Pitch Marine Current Turbines Sofiane of permanent magnet (PM) generator associated with fixed-pitch turbine for tidal energy generation. The main problem with marine current turbines systems are the maintenance requirements of the drive

Paris-Sud XI, Université de

249

The Advantages of Fixed Facilities in Characterizing TRU Wastes  

SciTech Connect (OSTI)

In May 1998 the Hanford Site started developing a program for characterization of transuranic (TRU) waste for shipment to the Waste Isolation Pilot Plant (WIPP) in New Mexico. After less than two years, Hanford will have a program certified by the Carlsbad Area Office (CAO). By picking a simple waste stream, taking advantage of lessons learned at the other sites, as well as communicating effectively with the CAO, Hanford was able to achieve certification in record time. This effort was further simplified by having a centralized program centered on the Waste Receiving and Processing (WRAP) Facility that contains most of the equipment required to characterize TRU waste. The use of fixed facilities for the characterization of TRU waste at sites with a long-term clean-up mission can be cost effective for several reasons. These include the ability to control the environment in which sensitive instrumentation is required to operate and ensuring that calibrations and maintenance activities are scheduled and performed as an operating routine. Other factors contributing to cost effectiveness include providing approved procedures and facilities for handling hazardous materials and anticipated contingencies and performing essential evolutions, and regulating and smoothing the work load and environmental conditions to provide maximal efficiency and productivity. Another advantage is the ability to efficiently provide characterization services to other sites in the Department of Energy (DOE) Complex that do not have the same capabilities. The Waste Receiving and Processing (WRAP) Facility is a state-of-the-art facility designed to consolidate the operations necessary to inspect, process and ship waste to facilitate verification of contents for certification to established waste acceptance criteria. The WRAP facility inspects, characterizes, treats, and certifies transuranic (TRU), low-level and mixed waste at the Hanford Site in Washington state. Fluor Hanford operates the $89 million facility under the Project Hanford Management Contract. This paper describes the operating experiences and results obtained during the first year of full operations at WRAP. Interested audiences include personnel involved in TRU waste characterization activities, TRU waste treatment and disposal facilities and TRU waste certification. The conclusions of this paper are that WRAP has proven itself to be a valuable asset for low-level and TRU waste management.

FRENCH, M.S.

2000-02-08T23:59:59.000Z

250

Direct-drive cryogenic target implosion performance on OMEGAa... P. W. McKenty,b)  

E-Print Network [OSTI]

. Phillips, G. J. Schmid, and C. Sorce Lawrence Livermore National Laboratory, Livermore, California 94550 of direct-drive ignition target designs for the 1.6-MJ National Ignition Facility2 NIF , currently under construction at the Lawrence Liver- more National Laboratory. The physical limitations of the target

251

January 2010 Physics 3300  

E-Print Network [OSTI]

1 January 2010 Physics 3300 Introduction to Physical Oceanography Instructor: Brad de Young Physics and Physical Oceanography Memorial University, bdeyoung@mun.ca Room C-3000 737-8738 Physics 3300 Introduction to Physical Oceanography deals with the physics of the processes in the ocean, providing an integrating view

deYoung, Brad

252

Harmonic oscillator chains as Wigner Quantum Systems: periodic and fixed wall boundary conditions in gl(1|n) solutions  

E-Print Network [OSTI]

We describe a quantum system consisting of a one-dimensional linear chain of n identical harmonic oscillators coupled by a nearest neighbor interaction. Two boundary conditions are taken into account: periodic boundary conditions (where the nth oscillator is coupled back to the first oscillator) and fixed wall boundary conditions (where the first oscillator and the $n$th oscillator are coupled to a fixed wall). The two systems are characterized by their Hamiltonian. For their quantization, we treat these systems as Wigner Quantum Systems (WQS), allowing more solutions than just the canonical quantization solution. In this WQS approach, one is led to certain algebraic relations for operators (which are linear combinations of position and momentum operators) that should satisfy triple relations involving commutators and anti-commutators. These triple relations have a solution in terms of the Lie superalgebra gl(1|n). We study a particular class of gl(1|n) representations V(p), the so-called ladder representations. For these representations, we determine the spectrum of the Hamiltonian and of the position operators (for both types of boundary conditions). Furthermore, we compute the eigenvectors of the position operators in terms of stationary states. This leads to explicit expressions for position probabilities of the n oscillators in the chain. An analysis of the plots of such position probability distributions gives rise to some interesting observations. In particular, the physical behavior of the system as a WQS is very much in agreement with what one would expect from the classical case, except that all physical quantities (energy, position and momentum of each oscillator) have a finite spectrum.

S. Lievens; N. I. Stoilova; J. Van der Jeugt

2007-09-03T23:59:59.000Z

253

Harmonic oscillator chains as Wigner quantum systems: Periodic and fixed wall boundary conditions in gl(1|n) solutions  

SciTech Connect (OSTI)

We describe a quantum system consisting of a one-dimensional linear chain of n identical harmonic oscillators coupled by a nearest neighbor interaction. Two boundary conditions are taken into account: periodic boundary conditions (where the nth oscillator is coupled back to the first oscillator) and fixed wall boundary conditions (where the first oscillator and the nth oscillator are coupled to a fixed wall). The two systems are characterized by their Hamiltonian. For their quantization, we treat these systems as Wigner quantum systems (WQSs), allowing more solutions than just the canonical quantization solution. In this WQS approach, one is led to certain algebraic relations for operators (which are linear combinations of position and momentum operators) that should satisfy triple relations involving commutators and anti-commutators. These triple relations have a solution in terms of the Lie superalgebra gl(1|n). We study a particular class of gl(1|n) representations V(p), the so-called ladder representations. For these representations, we determine the spectrum of the Hamiltonian and of the position operators (for both types of boundary conditions). Furthermore, we compute the eigenvectors of the position operators in terms of stationary states. This leads to explicit expressions for position probabilities of the n oscillators in the chain. An analysis of the plots of such position probability distributions gives rise to some interesting observations. In particular, the physical behavior of the system as a WQS is very much in agreement with what one would expect from the classical case, except that all physical quantities (energy, position, and momentum of each oscillator) have a finite spectrum.

Lievens, S.; Stoilova, N. I.; Jeugt, J. van der [Department of Applied Mathematics and Computer Science, Ghent University, Krijgslaan 281-S9, B-9000 Gent (Belgium)

2008-07-15T23:59:59.000Z

254

Particle Physics Booklet 2008  

E-Print Network [OSTI]

212 25. Accelerator physics of colliders ? 26. High-energythe full Review. PARTICLE PHYSICS BOOKLET TABLE OF CONTENTSrev. ) Summary Tables of Particle Physics Gauge and Higgs

et al., C. Amsler

2008-01-01T23:59:59.000Z

255

Center for Beam Physics  

E-Print Network [OSTI]

for Heavy Ion Fusion," Research Trends in Physics, La JollaInternational School of Physics, New York, New York (1992),Professor and Chairman Physics Department University of

Chattopadhyay, S.

2010-01-01T23:59:59.000Z

256

Tutorial on the Physics of Inertial Confinement Fusion for energy applications  

E-Print Network [OSTI]

thermal input nuclear output Physics E E QQ == The Physics or Thermonuclear Q The Physics Q determines plasma common definition of "burning plasmas" The Physics or Thermonuclear Q #12;The Target Gain "G) Dense shell Useful kinetic energy #12;Ignition takes place in the "hot spot." The thermonuclear

257

Physics Illinois Undergraduate Programs  

E-Print Network [OSTI]

Physics Illinois Undergraduate Programs Department of Physics College of Engineering University to undergraduate education. Over the last 15 years, in collaboration with our nationally recognized Physics Education Research Group, our faculty has reinvented the way undergraduate physics courses are taught

Gilbert, Matthew

258

Physics 6321 Coastal oceanography  

E-Print Network [OSTI]

Physics 6321 Coastal oceanography · Instructor: Dr. Iakov Afanassiev · Office: Physics C-4065 · email: yakov@physics.mun.ca · Course Times: TBD Room TBD · Office Hours: unlimited · Web Page: http://www.physics

deYoung, Brad

259

High Energy Physics  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Basic Energy Science Biological and Environmental Research Fusion Energy Sciences High Energy Physics Nuclear Physics Advanced Scientific Computing Research Pioneering...

260

Princeton Plasma Physics Laboratory NSTX Experimental Proposal  

E-Print Network [OSTI]

Review Board (designated by Run Coordinator) MINOR MODIFICATIONS (Approved by Experimental Research in NSTX and DIII-D. Because the physics of ELM mitigation by non- axisymmetric fields is not established, this experiment is somewhat exploratory in nature. For instance, plasma targets with various edge q

Princeton Plasma Physics Laboratory

Note: This page contains sample records for the topic "fixed target physics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

People's Physics Book The People's Physics Book  

E-Print Network [OSTI]

#12;People's Physics Book The People's Physics Book Authors James H. Dann, Ph.D. James J. Dann. All rights reserved. Textbook Website http://scipp.ucsc.edu/outreach/index2.html #12;People's Physics) "Each discovery, each advance, each increase in the sum of human riches, owes its being to the physical

California at Santa Cruz, University of

262

Physics Procedia 00 (2013) 16 Physics Procedia  

E-Print Network [OSTI]

Physics Procedia 00 (2013) 1­6 Physics Procedia Educating the next generation of Computational Physicists Joan Adler Physics Department, Technion -IIT, Haifa, Israel, 32000 Abstract Many "senior" Computational Physics researchers began their careers perched on of the other vertices of the Landau triangle

Adler, Joan

263

People's Physics Book The People's Physics Book  

E-Print Network [OSTI]

People's Physics Book The People's Physics Book Authors James H. Dann, Ph.D. James J. Dann. All rights reserved. Textbook Website http://scipp.ucsc.edu/outreach/index2.html #12;People's Physics) "Each discovery, each advance, each increase in the sum of human riches, owes its being to the physical

California at Santa Cruz, University of

264

Physics and Astronomy Chemical Physics Concentration  

E-Print Network [OSTI]

Physics and Astronomy Chemical Physics Concentration Strongly recommended courses Credits Term Dept Fields & Waves 3 PHY 3230 Thermal Physics 3 PHY 4640 Quantum Mechanics 3 PHY 4020 Computational Methods in Physics & Engineering 3 PHY 4330 Digital Electronics 3 CHE 1101 Intro. Chemistry I 3 CHE 1110 Intro

Thaxton, Christopher S.

265

Physics Procedia 00 (2013) 15 Physics Procedia  

E-Print Network [OSTI]

Physics Procedia 00 (2013) 1­5 Physics Procedia Educating the next generation of Computational Physicists Joan Adler Physics Department, Technion -IIT, Haifa, Israel, 32000 Abstract Many "senior" Computational Physics researchers began their careers perched on of the other vertices of the Landau triangle

Adler, Joan

266

Fundamentals of Plasma Physics  

E-Print Network [OSTI]

of students (from physics, engineering physics, elec- trical engineering, nuclear engineering and other un;PREFACE Plasma physics is a relatively new branch of physics that became a mature science over the last). Thus, plasma physics has developed in large part as a branch of applied or engineering physics

Callen, James D.

267

IPNS enriched uranium booster target  

SciTech Connect (OSTI)

Since startup in 1981, IPNS has operated on a fully depleted /sup 238/U target. With the booster as in the present system, high energy protons accelerated to 450 MeV by the Rapid Cycling Synchrotron are directed at the target and by mechanisms of spallation and fission of the uranium, produce fast neutrons. The neutrons from the target pass into adjacent moderator where they slow down to energies useful for spectroscopy. The target cooling systems and monitoring systems have operated very reliably and safely during this period. To provide higher neutron intensity, we have developed plans for an enriched uranium (booster) target. HETC-VIM calculations indicate that the target will produce approx.90 kW of heat, with a nominal x5 gain (k/sub eff/ = 0.80). The neutron beam intensity gain will be a factor of approx.3. Thermal-hydraulic and heat transport calculations indicate that approx.1/2 in. thick /sup 235/U discs are subject to about the same temperatures as the present /sup 238/U 1 in. thick discs. The coolant will be light demineralized water (H/sub 2/O) and the coolant flow rate must be doubled. The broadening of the fast neutron pulse width should not seriously affect the neutron scattering experiments. Delayed neutrons will appear at a level about 3% of the total (currently approx.0.5%). This may affect backgrounds in some experiments, so that we are assessing measures to control and correct for this (e.g., beam tube choppers). Safety analyses and neutronic calculations are nearing completion. Construction of the /sup 235/U discs at the ORNL Y-12 facility is scheduled to begin late 1985. The completion of the booster target and operation are scheduled for late 1986. No enriched uranium target assembly operating at the projected power level now exists in the world. This effort thus represents an important technological experiment as well as being a ''flux enhancer''.

Schulke, A.W. Jr.

1985-01-01T23:59:59.000Z

268

Operational experience using the novel FixCup collecting main valve  

SciTech Connect (OSTI)

On the occasion of the 1995 AIME conference the new PROven (Pressure Regulated Oven) process to control the pressure in coke ovens individually was introduced. This process was made feasible with a new collecting main valve, termed FixCup, with the aid of this valve a variable flow resistance to the raw gas discharge can be realized using a water immersion system. However, just the application of the FixCup system alone--without any pressure regulation--is very advantageous and cost saving. Thyssen has equipped 30 ovens with the new valve. The special constructive features as well as the operational experience using the FixCup valve are treated.

Giertz, J.; Huhn, F. [DMT-Gesellschaft fuer Forschung und Pruefung mbH, Essen (Germany). Inst. for Cokemaking and Fuel Technology; Spitz, J. [Thyssen Stahl AG, Duisburg (Germany)

1996-12-31T23:59:59.000Z

269

Accurate parameters of 93 solar-type Kepler targets  

E-Print Network [OSTI]

We present a detailed spectroscopic study of 93 solar-type stars that are targets of the NASA/Kepler mission and provide detailed chemical composition of each target. We find that the overall metallicity is well-represented by Fe lines. Relative abundances of light elements (CNO) and alpha-elements are generally higher for low-metallicity stars. Our spectroscopic analysis benefits from the accurately measured surface gravity from the asteroseismic analysis of the Kepler light curves. The log g parameter is known to better than 0.03 dex and is held fixed in the analysis. We compare our Teff determination with a recent colour calibration of V-K (TYCHO V magnitude minus 2MASS Ks magnitude) and find very good agreement and a scatter of only 80 K, showing that for other nearby Kepler targets this index can be used. The asteroseismic log g values agree very well with the classical determination using Fe1-Fe2 balance, although we find a small systematic offset of 0.08 dex (asteroseismic log g values are lower). The ...

Bruntt, H; Smalley, B; Chaplin, W J; Verner, G A; Bedding, T R; Catala, C; Gazzano, J -C; Molenda-Zakowicz, J; Thygesen, A O; Uytterhoeven, K; Hekker, S; Huber, D; Karoff, C; Mathur, S; Mosser, B; Appourchaux, T; Campante, T L; Elsworth, Y; Garcia, R A; Handberg, R; Metcalfe, T S; Quirion, P -O; Regulo, C; Roxburgh, I W; Stello, D; Christensen-Dalsgaard, J; Kawaler, S D; Kjeldsen, H; Morris, R L; Quintana, E V; Sanderfer, D T

2012-01-01T23:59:59.000Z

270

Metrology Challenges for High Energy Density Science Target Manufacture  

SciTech Connect (OSTI)

Currently, High Energy Density Science (HEDS) experiments are used to support and qualify predictive physics models. These models assume ideal conditions such as energy (input) and device (target) geometry. The experiments rely on precision targets constructed from components with dimensions in the millimeter range, while having micrometer-scale, functional features, including planar steps, sine waves, and step-joint geometry on hemispherical targets. Future target designs will likely have features and forms that rival or surpass current manufacturing and characterization capability. The dimensional metrology of these features is important for a number of reasons, including qualification of sub-components prior to assembly, quantification of critical features on the as-built assemblies and as a feedback mechanism for fabrication process development. Variations in geometry from part to part can lead to functional limitations, such as unpredictable instabilities during an experiment and the inability to assemble a target from poorly matched sub-components. Adding to the complexity are the large number and variety of materials, components, and shapes that render any single metrology technique difficult to use with low uncertainty. Common materials include metal and glass foams, doped transparent and opaque plastics and a variety of deposited and wrought metals. A suite of metrology tools and techniques developed to address the many critical issues relevant to the manufacture of HEDS targets including interferometry, x-ray radiography and contact metrology are presented including two sided interferometry for absolute thickness metrology and low force probe technology for micrometer feature coordinate metrology.

Seugling, R M; Bono, M J; Davis, P

2009-02-19T23:59:59.000Z

271

Electron Scattering with Polarized Targets at TESLA  

E-Print Network [OSTI]

Measurements of polarized electron-nucleon scattering can be realized at the TESLA linear collider facility with projected luminosities that are about two orders of magnitude higher than those expected of other experiments at comparable energies. Longitudinally polarized electrons, accelerated as a small fraction of the total current in the e+ arm of TESLA, can be directed onto a solid state target that may be either longitudinally or transversely polarized. A large variety of polarized parton distribution and fragmentation functions can be determined with unprecedented accuracy, many of them for the first time. A main goal of the experiment is the precise measurement of the x- and Q^2-dependence of the experimentally totally unknown quark transversity distributions that will complete the information on the nucleon's quark spin structure as relevant for high energy processes. Comparing their Q^2-evolution to that of the corresponding helicity distributions constitutes an important precision test of the predictive power of QCD in the spin sector. Measuring transversity distributions and tensor charges allows access to the hitherto unmeasured chirally odd operators in QCD which are of great importance to understand the role of chiral symmetry. The possibilities of using unpolarized targets and of experiments with a real photon beam turn TESLA-N into a versatile next-generation facility at the intersection of particle and nuclear physics.

The TESLA-N Study Group; :; M. Anselmino; E. C. Aschenauer; S. Belostotski; W. Bialowons; J. Bluemlein; V. Braun; R. Brinkmann; M. Dueren; F. Ellinghaus; K. Goeke; St. Goertz; A. Gute; J. Harmsen; D. v. Harrach; R. Jakob; E. M. Kabuss; R. Kaiser; V. Korotkov; P. Kroll; E. Leader; B. Lehmann-Dronke; L. Mankiewicz; A. Meier; W. Meyer; N. Meyners; D. Mueller; P. J. Mulders; W. -D. Nowak; L. Niedermeier; K. Oganessyan; P. V. Pobilitsa; M. V. Polyakov; G. Reicherz; K. Rith; D. Ryckbosch; A. Schaefer; K. Sinram; G. v. d. Steenhoven; E. Steffens; J. Steijger; C. Weiss

2000-11-24T23:59:59.000Z

272

Roll-up of validation results to a target application.  

SciTech Connect (OSTI)

Suites of experiments are preformed over a validation hierarchy to test computational simulation models for complex applications. Experiments within the hierarchy can be performed at different conditions and configurations than those for an intended application, with each experiment testing only part of the physics relevant for the application. The purpose of the present work is to develop methodology to roll-up validation results to an application, and to assess the impact the validation hierarchy design has on the roll-up results. The roll-up is accomplished through the development of a meta-model that relates validation measurements throughout a hierarchy to the desired response quantities for the target application. The meta-model is developed using the computation simulation models for the experiments and the application. The meta-model approach is applied to a series of example transport problems that represent complete and incomplete coverage of the physics of the target application by the validation experiments.

Hills, Richard Guy

2013-09-01T23:59:59.000Z

273

Mixed quantum/classical theory of rotationally and vibrationally inelastic scattering in space-fixed and body-fixed reference frames  

SciTech Connect (OSTI)

We formulated the mixed quantum/classical theory for rotationally and vibrationally inelastic scattering process in the diatomic molecule + atom system. Two versions of theory are presented, first in the space-fixed and second in the body-fixed reference frame. First version is easy to derive and the resultant equations of motion are transparent, but the state-to-state transition matrix is complex-valued and dense. Such calculations may be computationally demanding for heavier molecules and/or higher temperatures, when the number of accessible channels becomes large. In contrast, the second version of theory requires some tedious derivations and the final equations of motion are rather complicated (not particularly intuitive). However, the state-to-state transitions are driven by real-valued sparse matrixes of much smaller size. Thus, this formulation is the method of choice from the computational point of view, while the space-fixed formulation can serve as a test of the body-fixed equations of motion, and the code. Rigorous numerical tests were carried out for a model system to ensure that all equations, matrixes, and computer codes in both formulations are correct.

Semenov, Alexander; Babikov, Dmitri, E-mail: dmitri.babikov@mu.edu [Chemistry Department, Wehr Chemistry Building, Marquette University, Milwaukee, Wisconsin 53201-1881 (United States)] [Chemistry Department, Wehr Chemistry Building, Marquette University, Milwaukee, Wisconsin 53201-1881 (United States)

2013-11-07T23:59:59.000Z

274

Vibrational characteristics of a long and very flexible rotating fixed-free beam  

E-Print Network [OSTI]

The differential eigenvalue problem of a long and very flexible rotating fixed-free beam is studied. This kind of system produces a singular perturbation equation with a turning point. The perturbation factor arises because of the division...

Zarco Cruz, Juan Carlos

2003-01-01T23:59:59.000Z

275

Fixing and pelleting chromatin/nuclei from extracts onto coverslips for immunofluorescence  

E-Print Network [OSTI]

Fixing and pelleting chromatin/nuclei from extracts onto coverslips for immunofluorescence Arshad. poly-lysine coated coverslips. 4. spin down tubes (or equivalent method to pellet onto coverslips; our

Mitchison, Tim

276

FAIR MATCHING ALGORITHM: FIXED-LENGTH FRAME SCHEDULING IN ALL-PHOTONIC NETWORKS  

E-Print Network [OSTI]

FAIR MATCHING ALGORITHM: FIXED-LENGTH FRAME SCHEDULING IN ALL-PHOTONIC NETWORKS Nahid Saberi email:nahid.saberi@mail.mcgill.ca, coates@ece.mcgill.ca Abstract Internal switches in all

277

Model studies to investigate the effects of fixed streamlines on water flooding performance  

E-Print Network [OSTI]

MODEL STUDIES TO INVESTIGATE THE EFFECTS OF FIXED STREAMLINES ON WATER FLOODING PERFORMANCE A Thesis by Axel Venton Green Submitted to the Graduate College of the Texas ASrM University in partial fulfillment of the requirements...

Green, Axel Venton

1964-01-01T23:59:59.000Z

278

Crimp sealing of tubes flush with or below a fixed surface  

DOE Patents [OSTI]

An apparatus for crimp sealing and severing tubes flush or below a fixed surface. Tube crimping below a fixed surface requires an asymmetric die and anvil configuration. The anvil must be flat so that, after crimping, it may be removed without deforming the crimped tubes. This asymmetric die and anvil is used when a ductile metal tube and valve assembly are attached to a pressure vessel which has a fixed surface around the base of the tube at the pressure vessel. A flat anvil is placed against the tube. Die guides are placed against the tube on a side opposite the anvil. A pinch-off die is inserted into the die guides against the tube. Adequate clearance for inserting the die and anvil around the tube is needed below the fixed surface. The anvil must be flat so that, after crimping, it may be removed without deforming the crimped tubes. 8 figs.

Fischer, J.E.; Walmsley, D.; Wapman, P.D.

1996-08-20T23:59:59.000Z

279

An investigation of fixed separation in quasi-periodic and aperiodic, unsteady, two-dimensional flows  

E-Print Network [OSTI]

This study asses the kinematic theory of fixed separation in unsteady, two-dimensional flows that has been proposed by Haller (2004). Experimental investigations were conducted that utilized the rotor-oscillator flow to ...

Helu, Moneer Mohammad

2007-01-01T23:59:59.000Z

280

Model Checking Fixed Point Logic with Chop Martin Lange and Colin Stirling  

E-Print Network [OSTI]

for Foundations of Computer Science Division of Informatics University of Edinburgh {martin,cps, properties expressed by L µ formulas are essentially ``regular''. In [9], MË?uller­Olm introduced FLC, fixed

Stirling, Colin

Note: This page contains sample records for the topic "fixed target physics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Model Checking Fixed Point Logic with Chop Martin Lange and Colin Stirling  

E-Print Network [OSTI]

for Foundations of Computer Science Division of Informatics University of Edinburgh {martin,cps, properties expressed by �µ formulas are essentially "regular". In [9], M¨uller-Olm introduced FLC, fixed

Stirling, Colin

282

Coordinating Inventory Control and Pricing Strategies with Random Demand and Fixed  

E-Print Network [OSTI]

Coordinating Inventory Control and Pricing Strategies with Random Demand and Fixed Ordering Cost, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 1. Introduction Traditional inventory strategies to manage their inventory effectively. For example, techniques such as revenue management have

Chen, Xin

283

Resource limitation affects productivity and heterocyst formation in nitrogen-fixing cyanobacteria  

E-Print Network [OSTI]

Resource limitation affects productivity and heterocyst formation in nitrogen-fixing cyanobacteria College, Lewiston, ME Mentors: Ed Rastetter and Zoe Cardon December 2011 #12;2 Keywords: Resource optimization, substitutable resource, cyanobacteria, heterocyst, Anabaena, Abstract Cyanobacteria

Vallino, Joseph J.

284

Comparative genomics and natural distributions of phenotypically distinct strains of the nitrogen-fixing cyanobacterium Crocosphaera watsonii  

E-Print Network [OSTI]

in the subtropical North Pacific Ocean. Nature 412:635- 38.fixing bacteria in the Pacific Ocean. Limnol. Oceanogr. 53:fixing bacteria in the Pacific Ocean. Limnol. Oceanogr. 53,

Bench, Shellie

2012-01-01T23:59:59.000Z

285

Targets and methods for target preparation for radionuclide production  

DOE Patents [OSTI]

The invention relates to nuclear technology, and to irradiation targets and their preparation. One embodiment of the present invention includes a method for preparation of a target containing intermetallic composition of antimony Ti--Sb, Al--Sb, Cu--Sb, or Ni--Sb in order to produce radionuclides (e.g., tin-117 m) with a beam of accelerated particles. The intermetallic compounds of antimony can be welded by means of diffusion welding to a copper backing cooled during irradiation on the beam of accelerated particles. Another target can be encapsulated into a shell made of metallic niobium, stainless steel, nickel or titanium cooled outside by water during irradiation. Titanium shell can be plated outside by nickel to avoid interaction with the cooling water.

Zhuikov, Boris L; Konyakhin, Nicolai A; Kokhanyuk, Vladimir M; Srivastava, Suresh C

2012-10-16T23:59:59.000Z

286

Inverse fixed energy scattering problem for the two-dimensional nonlinear Schroedinger operator  

E-Print Network [OSTI]

This work studies the direct and inverse fixed energy scattering problem for two-dimensional Schroedinger equation with rather general nonlinear index of refraction. In particular, using the Born approximation we prove that all singularities of the unknown compactly supported potential from $L^2$-space can be obtained uniquely by the scattering data with fixed positive energy. The proof is based on the new estimates for the Faddeev-Green's function in $L^\\infty$-space.

Georgios Fotopoulos; Valery Serov

2014-12-01T23:59:59.000Z

287

Enterprise Assessments Targeted Review, Argonne National Laboratory...  

Energy Savers [EERE]

Targeted Review, Argonne National Laboratory - November 2014 Enterprise Assessments Targeted Review, Argonne National Laboratory - November 2014 November 2014 Review of the...

288

A Prospective Target for Advanced Biofuel Production  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

A Prospective Target for Advanced Biofuel Production A Prospective Target for Advanced Biofuel Production Print Thursday, 02 February 2012 13:34 The sesquiterpene bisabolene was...

289

Progress with developing a target for magnetized target fusion  

SciTech Connect (OSTI)

Magnetized Target Fusion (MTF) is an approach to fusion where a preheated and magnetized plasma is adiabatically compressed to fusion conditions. Successful MTF requires a suitable initial target plasma with an embedded magnetic field of at least 5 T in a closed-field-line topology, a density of roughly 10{sup 18} cm{sup {minus}3}, a temperature of at least 50 eV, and must be free of impurities which would raise radiation losses. Target plasma generation experiments are underway at Los Alamos National Laboratory using the Colt facility; a 0.25 MJ, 2--3 {micro}s rise-time capacitor bank. The goal of these experiments is to demonstrate plasma conditions meeting the minimum requirements for a MTF initial target plasma. In the first experiments, a Z-pinch is produced in a 2 cm radius by 2 cm high conducting wall using a static gas-fill of hydrogen or deuterium gas in the range of 0.5 to 2 torr. Thus far, the diagnostics include an array of 12 B-dot probes, framing camera, gated OMA visible spectrometer, time-resolved monochrometer, filtered silicon photodiodes, neutron yield, and plasma-density interferometer. These diagnostics show that a plasma is produced in the containment region that lasts roughly 10 to 20 {micro}s with a maximum plasma density exceeding 10{sup 18} cm{sup {minus}3}. The experimental design and data are presented.

Wysocki, F.J.; Chrien, R.E.; Idzorek, G.; Oona, H.; Whiteson, D.O.; Kirkpatrick, R.C.; Lindemuth, I.R.; Sheehey, P.T.

1997-09-01T23:59:59.000Z

290

B Physics (Experiment)  

E-Print Network [OSTI]

In past few years the flavor physics made important transition from the work on confirmation the standard model of particle physics to the phase of search for effects of a new physics beyond standard model. In this paper we review current state of the physics of b-hadrons with emphasis on results with a sensitivity to new physics.

Michal Kreps

2010-08-02T23:59:59.000Z

291

General Syllabus Physics 45100  

E-Print Network [OSTI]

General Syllabus Physics 45100 Thermodynamics and Statistical Physics Designation: Undergraduate Catalog description: 45100: Thermodynamics and Statistical Physics Temperature; equation of state; work and statistical mechanics; low-temperature physics; the Third Law. 3 HR./Wk.; 3 CR. Prerequisites: Physics 35100

Lombardi, John R.

292

Physics Resources for Teachers  

E-Print Network [OSTI]

Physics Resources for Teachers University of Wisconsin ­ Madison Department of Physics 1150 University Ave. Madison, WI 53706 wonders@physics.wisc.edu (608) 262-2927 Plasma Physics Web Resources Center Plasma Physics Lab http://science-education.pppl.gov/ Coalition for Plasma Science http

Collar, Juan I.

293

Department of Physics High Energy Physics Group  

E-Print Network [OSTI]

Department of Physics High Energy Physics Group Electrical Engineer (Job ref: 0004) The High Energy and experience. A job description and an application form can be obtained from http

294

Target  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security AdministrationcontrollerNanocrystallineForeign ObjectOUR8, 2013 FINAL MEETING SUMMARY7,TankLifetime

295

Targets  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmittedStatus TomAboutManus Site-Inactive TWPCarbonTakeRVTape Mounts

296

Physics 4: Introductory Physics Electromagnetism and Light  

E-Print Network [OSTI]

Physics 4: Introductory Physics Electromagnetism and Light Professor Jeffrey D. Richman Department: Electromagnetism and Light Welcome to Physics 4! What is your goal in life? If it is to become an engineer or to pursue a career in science, this is a key class for you. Understanding electromagnetism and light

Fygenson, Deborah Kuchnir

297

Min-wuk Lee 1 A fixedA fixed--point 3D graphics library withpoint 3D graphics library with  

E-Print Network [OSTI]

Outline Introduction Motivation MobileGL: Mobile 3D graphics library Energy-efficient CPU cache Energy-optimization for mobile 3D graphics Software system : High speed graphics library (MobileGL) Hardware system : Energy-cost target High speed graphics library Energy-efficient CPU cache system High quality target High speed

Yoo, Hoi-Jun

298

ENVIRONMENTAL PHYSICS METHODS  

E-Print Network [OSTI]

ENVIRONMENTAL PHYSICS METHODS LABORATORY PRACTICES #12;Foundations of Environmental Science Lecture Enviromental Physics Methods Laboratory Practices #12;Eötvös Loránd University Faculty of Science ENVIRONMENTAL tankönyvsorozat" (KMR Foundations of Environmental Science Lecture Series). KEYWORDS: Environmental physics

Horváth, Ákos

299

Non-PGM Target Update  

Broader source: Energy.gov (indexed) [DOE]

at 0.80 V set for a measured activity target of 11 Acm 3 at 0.90 V, iR-corrected. (Equivalent to 300 Acm 3 at 0.80 V assuming 70 mVdec Tafel slope.) Consistent criteria...

300

SOLVING THE STAND-OFF PROBLEM FOR MAGNETIZED TARGET FUSION: PLASMA STREAMS AS DISPOSABLE ELECTRODES, PLUS A LOCAL SPHERICAL BLANKET  

SciTech Connect (OSTI)

In a fusion reactor based on the Magnetized Target Fusion approach, the permanent power supply has to deliver currents up to a few mega-amperes to the target dropped into the reaction chamber. All the structures situated around the target will be destroyed after every pulse and have to be replaced at a frequency of 1 to 10 Hz. In this paper, an approach based on the use of spherical blanket surrounding the target, and pulsed plasma electrodes connecting the target to the power supply, is discussed. A brief physic analysis of the processes associated with creation of plasma electrodes is discussed.

Ryutov, D D; Thio, Y F

2006-03-21T23:59:59.000Z

Note: This page contains sample records for the topic "fixed target physics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Lecture 31 1 Physics 558 Winter 2013 Physics 558 Lecture 31  

E-Print Network [OSTI]

of the Physics Astronomy Building). A high-energy beam of electrons is focused on a target of protons (hydrogen to analyze interactions for which the asymptotic states are color neutral bound states of many quarks and gluons. We will begin our discussions of the strong interactions by first considering the high-energy

Ellis, Steve

302

The HERMES Polarized Hydrogen Internal Gas Target  

E-Print Network [OSTI]

internal gas targets. The HERMES hydrogen target is an internal polarized gas target using the storage cell frame on the right. atomic hydrogen beam and focuses it into a storage cell. The storage cellThe HERMES Polarized Hydrogen Internal Gas Target J. Stewart for The HERMES Collaboration

303

ORISE: Health physics services  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Health physics services Nuclear power plant The Oak Ridge Institute for Science and Education (ORISE) offers comprehensive health physics services in a number of technical areas...

304

B Physics: Theory Overview  

E-Print Network [OSTI]

This is an overview of B physics that can be done at the LHC with the purpose of searching for new physics.

David London

2012-07-19T23:59:59.000Z

305

ORISE: Health Physics Training  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Health Physics Training Student performs an analysis during an ORAU health physics training course Training and educating a highly skilled workforce that can meet operational...

306

Office of Physical Protection  

Broader source: Energy.gov [DOE]

The Office of Physical Protection is comprised of a team of security specialists engaged in providing Headquarters-wide physical protection.

307

Target Allocation Methodology for China's Provinces: Energy Intensity in the 12th FIve-Year Plan  

SciTech Connect (OSTI)

Experience with China's 20% energy intensity improvement target during the 11th Five-Year Plan (FYP) (2006-2010) has shown the challenges of rapidly setting targets and implementing measures to meet them. For the 12th FYP (2011-2015), there is an urgent need for a more scientific methodology to allocate targets among the provinces and to track physical and economic indicators of energy and carbon saving progress. This report provides a sectoral methodology for allocating a national energy intensity target - expressed as percent change in energy per unit gross domestic product (GDP) - among China's provinces in the 12th FYP. Drawing on international experience - especially the European Union (EU) Triptych approach for allocating Kyoto carbon targets among EU member states - the methodology here makes important modifications to the EU approach to address an energy intensity rather than a CO{sub 2} emissions target, and for the wider variation in provincial energy and economic structure in China. The methodology combines top-down national target projections and bottom-up provincial and sectoral projections of energy and GDP to determine target allocation of energy intensity targets. Total primary energy consumption is separated into three end-use sectors - industrial, residential, and other energy. Sectoral indicators are used to differentiate the potential for energy saving among the provinces. This sectoral methodology is utilized to allocate provincial-level targets for a national target of 20% energy intensity improvement during the 12th FYP; the official target is determined by the National Development and Reform Commission. Energy and GDP projections used in the allocations were compared with other models, and several allocation scenarios were run to test sensitivity. The resulting allocations for the 12th FYP offer insight on past performance and offer somewhat different distributions of provincial targets compared to the 11th FYP. Recommendations for reporting and monitoring progress on the targets, and methodology improvements, are included.

Ohshita, Stephanie; Price, Lynn

2011-03-21T23:59:59.000Z

308

APPLICATION OF THE FIXED NEUTRON ABSORBER STANDARD ANSI/ANS-8.21  

SciTech Connect (OSTI)

The specific applications standard, ANSI/ANS-8.21, provides guidance and insight in the use of fixed neutron absorbers. Organizations involved with handling and processing fissionable material will benefit from the systematic guidance provided by the standard in implementing engineered criticality safety controls. Numerous applications have demonstrated the successful implementation of fixed neutron absorbers as engineered safety features replacing administrative controls and substantial increases in mass loading. Upgrading the scope and usefulness of the standard by expanding the appendices is in progress.

TOFFER, H.

2004-07-26T23:59:59.000Z

309

The four fixed points of scale invariant single field cosmological models  

SciTech Connect (OSTI)

We introduce a new set of flow parameters to describe the time dependence of the equation of state and the speed of sound in single field cosmological models. A scale invariant power spectrum is produced if these flow parameters satisfy specific dynamical equations. We analyze the flow of these parameters and find four types of fixed points that encompass all known single field models. Moreover, near each fixed point we uncover new models where the scale invariance of the power spectrum relies on having simultaneously time varying speed of sound and equation of state. We describe several distinctive new models and discuss constraints from strong coupling and superluminality.

Xue, BingKan, E-mail: bxue@princeton.edu [Department of Physics, Princeton University, Princeton, New Jersey 08544 (United States)

2012-10-01T23:59:59.000Z

310

A new computational approach to the synthesis of fixed order controllers  

E-Print Network [OSTI]

A NEW COMPUTATIONAL APPROACH TO THE SYNTHESIS OF FIXED ORDER CONTROLLERS A Dissertation by WAQAR AHMAD MALIK Submitted to the O ce of Graduate Studies of Texas A&M University in partial ful llment of the requirements for the degree of DOCTOR... OF PHILOSOPHY December 2007 Major Subject: Mechanical Engineering A NEW COMPUTATIONAL APPROACH TO THE SYNTHESIS OF FIXED ORDER CONTROLLERS A Dissertation by WAQAR AHMAD MALIK Submitted to the O ce of Graduate Studies of Texas A&M University in partial ful llment...

Malik, Waqar Ahmad

2008-10-10T23:59:59.000Z

311

A new computational approach to the synthesis of fixed order controllers  

E-Print Network [OSTI]

A NEW COMPUTATIONAL APPROACH TO THE SYNTHESIS OF FIXED ORDER CONTROLLERS A Dissertation by WAQAR AHMAD MALIK Submitted to the O ce of Graduate Studies of Texas A&M University in partial ful llment of the requirements for the degree of DOCTOR... OF PHILOSOPHY December 2007 Major Subject: Mechanical Engineering A NEW COMPUTATIONAL APPROACH TO THE SYNTHESIS OF FIXED ORDER CONTROLLERS A Dissertation by WAQAR AHMAD MALIK Submitted to the O ce of Graduate Studies of Texas A&M University in partial ful llment...

Malik, Waqar Ahmad

2009-05-15T23:59:59.000Z

312

Generation and compression of a target plasma for magnetized target fusion  

SciTech Connect (OSTI)

This is the final report of a three-year, Laboratory Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). Magnetized target fusion (MTF) is intermediate between the two very different approaches to fusion: inertial and magnetic confinement fusion (ICF and MCF). Results from collaboration with a Russian MTF team on their MAGO experiments suggest they have a target plasma suitable for compression to provide an MTF proof of principle. This LDRD project had tow main objectives: first, to provide a computational basis for experimental investigation of an alternative MTF plasma, and second to explore the physics and computational needs for a continuing program. Secondary objectives included analytic and computational support for MTF experiments. The first objective was fulfilled. The second main objective has several facets to be described in the body of this report. Finally, the authors have developed tools for analyzing data collected on the MAGO a nd LDRD experiments, and have tested them on limited MAGO data.

Kirkpatrick, R.C.; Lindemuth, I.R.; Sheehey, P.T. [and others

1998-11-01T23:59:59.000Z

313

Current issue Physics Resources  

E-Print Network [OSTI]

History Physics Education Industrial Outreach Programs that Match Every Interest - Master's Degrees, it became clear that physics master's programs were not easily categorized. The original classification the strengths of physics master's degree programs. Over half of physics departments offer at least one master

Thaxton, Christopher S.

314

PHYSICS 106 Summer 2011  

E-Print Network [OSTI]

PHYSICS 106 Summer 2011 Instructor: Stephanie Magleby (sam25@physics.byu.edu) Office Hours: MWF 2 -3 pm, N311 ESC Office Phone (physics): 422-7056 Office Phone (engineering): 422-8319 TA: Corbin Jacobs [corbinjacobs@gmail.com] Email Corbin with any reading quiz questions or Mastering Physics issues

Hart, Gus

315

Aspects of Unparticle Physics  

E-Print Network [OSTI]

We review some theoretical and experimental issues in unparticle physics, focusing mainly on collider signatures.

Arvind Rajaraman

2008-09-29T23:59:59.000Z

316

DESIGN OF A SUBCRITICAL AQUEOUS TARGET SYSTEM FOR MEDICAL ISOTOPE PRODUCTION  

E-Print Network [OSTI]

DESIGN OF A SUBCRITICAL AQUEOUS TARGET SYSTEM FOR MED- ICAL ISOTOPE PRODUCTION An Undergraduate Research Scholars Thesis by RICHARD VEGA Submitted to Honors and Undergraduate Research Texas A&M University in partial fulfillment... ..............................................................................................................................52 1 ABSTRACT Design of a Subcritical Aqueous Target System for Medical Isotope Production. (May 2014) Richard Vega Department of Nuclear Engineering Department of Physics Texas A&M University Research Advisor: Dr. Gamal...

Vega, Richard Manuel

2013-12-10T23:59:59.000Z

317

LIFE Target Fabrication Research Plan Sept 2008  

SciTech Connect (OSTI)

The target-system for the baseline LIFE fast-ignition target was analyzed to establish a preliminary estimate for the costs and complexities involved in demonstrating the technologies needed to build a prototype LIFE plant. The baseline fast-ignition target upon which this analysis was developed is shown in Figure 1.0-1 below. The LIFE target-system incorporates requirements for low-cost, high throughput manufacture, high-speed, high accuracy injection of the target into the chamber, production of sufficient energy from implosion and recovery and recycle of the imploded target material residue. None of these functions has been demonstrated to date. Existing target fabrication techniques which lead to current 'hot spot' target costs of {approx}$100,000 per target and at a production rate of 2/day are unacceptable for the LIFE program. Fabrication techniques normally used for low-cost, low accuracy consumer products such as toys must be adapted to the high-accuracy LIFE target. This will be challenge. A research program resulting is the demonstration of the target-cycle technologies needed for a prototype LIFE reactor is expected to cost {approx}$51M over the course of 5 years. The effort will result in targets which will cost an estimated $0.23/target at a rep-rate of 20 Hz or about 1.73M targets/day.

Miles, R; Biener, J; Kucheyev, S; Montesanti, R; Satcher, J; Spadaccini, C; Rose, K; Wang, M; Hamza, A; Alexander, N; Brown, L; Hund, J; Petzoldt, R; Sweet, W; Goodin, D

2008-11-10T23:59:59.000Z

318

Semi-Autonomous Human-UAV Interfaces for Fixed-Wing Mini-UAVs  

E-Print Network [OSTI]

Semi-Autonomous Human-UAV Interfaces for Fixed-Wing Mini-UAVs Morgan Quigley Brigham Young University Provo, UT, USA beard@ee.byu.edu Abstract-- We present several human-UAV interfaces that support real-time control of a small semi-autonomous UAV. These interfaces are designed for searching tasks

Goodrich, Michael A.

319

Per-Unit Royalty vs Fixed Fee: The Case of Weak Patents  

E-Print Network [OSTI]

Per-Unit Royalty vs Fixed Fee: The Case of Weak Patents Rabah Amiry David Encaouaz Yassine a per-unit royalty or a ...xed fee when her innovation is covered by a weak patent, i.e. a patent of competition is not speci...ed, we show that the patent holder prefers to use a per-unit royalty scheme

Paris-Sud XI, Université de

320

VaR Constrained Hedging of Fixed Price Load-Following Obligations in Competitive  

E-Print Network [OSTI]

VaR Constrained Hedging of Fixed Price Load-Following Obligations in Competitive Electricity , and marketers at the prices determined by supply and demand equilibrium. Electricity mar- ket participants are exposed to risks in their net earnings due to uncertain wholesale market prices. Electricity market prices

Note: This page contains sample records for the topic "fixed target physics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Thermodynamics in 2+1 flavor QCD with improved Wilson quarks by the fixed scale approach  

E-Print Network [OSTI]

We study thermodynamic properties of 2+1 flavor QCD with improved Wilson quarks coupled with the RG improved Iwasaki glue, using the fixed scale approach. We present the results for the equation of state, renormalized Polyakov loop, and chiral condensate.

T. Umeda; S. Aoki; S. Ejiri; T. Hatsuda; K. Kanaya; Y. Maezawa; H. Ohno

2012-12-06T23:59:59.000Z

322

EXECUTIVE SUMMARY: RETHINKING STANDBY & FIXED COST CHARGES REGULATORY & RATE DESIGN PATHWAYS TO DEEPER SOLAR PV COST  

E-Print Network [OSTI]

to be recovered through variable, volume-based charges per kilowatt-hour (kWh). At the same time, however, someEXECUTIVE SUMMARY: RETHINKING STANDBY & FIXED COST CHARGES REGULATORY & RATE DESIGN PATHWAYS TO DEEPER SOLAR PV COST REDUCTIONS The Current Terrain In recent years, electric utilities have experienced

323

Basins of attraction in quadratic dynamical systems with a Jordan fixed point Marco Abate  

E-Print Network [OSTI]

Basins of attraction in quadratic dynamical systems with a Jordan fixed point Marco Abate Fax: +39/06/7259­4699 e­mail: abate@mat.uniroma2.it Abstract In this note we study the dynamics to the exceptional divisor and thus it can be projected down #12; 2 Marco Abate producing a parabolic curve

Roma Tor Vergata, UniversitĂ  di

324

FIX COPY ORNL/Sub/84-00205/1 SEROEDGEY EQVE  

E-Print Network [OSTI]

FIX COPY ORNL/Sub/84-00205/1 SEROEDGEY EQVE C= Status of Free Piston Stirling Engine Driven Heat STIRLING ENGINE DRIVEN HEAT PUMPS-DEVELOPMENT, ISSUES, AND OPTIONS FINAL REPORT Date Published- April 1986 the results of a program to review the recent experience with free piston Stirling engine (FPSE) driven beat

Oak Ridge National Laboratory

325

Joint Turbo Equalization and Channel Estimation with Fixed-Lag Extended Kalman Filtering  

E-Print Network [OSTI]

Joint Turbo Equalization and Channel Estimation with Fixed-Lag Extended Kalman Filtering Xin Li turbo equalization receiver for data transmission over time-varying frequency-selective fading channels with different types of turbo equalizers demonstrates the advantage of the proposed turbo equalizer. I

Wong, Tan F.

326

Avoiding, Finding and Fixing Spreadsheet Errors -A Survey of Automated Approaches for Spreadsheet QA  

E-Print Network [OSTI]

reviews and audits, to better tool support for the user during the spreadsheet development processAvoiding, Finding and Fixing Spreadsheet Errors - A Survey of Automated Approaches for Spreadsheet Graz, Austria Abstract Spreadsheet programs can be found everywhere in organizations and they are used

Jannach, Dietmar

327

Optimization of a Fixed Spraying System for Commercial High-Density Apple Plantings Final Report 2007  

E-Print Network [OSTI]

Optimization of a Fixed Spraying System for Commercial High-Density Apple Plantings Final Report and fruit coverage issues are a research priority in tree fruits and apples in particular. Preliminary Work. Preliminary trials were conducted in two blocks each of Red Delicious and Empire apples on M.9 dwarfing stock

Agnello, Arthur M.

328

Effects of sea severity on wave-overtopping for FPSO fixed in head seas  

E-Print Network [OSTI]

A series of experiments applying regular linear, nonlinear waves (Stokes 5th order-like) and random waves on a fixed FPSO model were performed in the wave-flume tank. Statistical information was gathered for wave overtopping of extreme waves...

Bakrawala, Murtaza A.

2003-01-01T23:59:59.000Z

329

A Fixed Point Analysis of a Gene Pool GA with Mutation Alden H. Wright #  

E-Print Network [OSTI]

A Fixed Point Analysis of a Gene Pool GA with Mutation Alden H. Wright # Computer Science University of Montana USA wright@cs.umt.edu 44 121 414 2793 Jonathan E. Rowe Computer Science University Alden Wright was visiting the School of Computer Science, University of Birmingham, UK, supported

Wright, Alden H.

330

A Fixed Point Analysis of a Gene Pool GA with Mutation Alden H. Wright  

E-Print Network [OSTI]

A Fixed Point Analysis of a Gene Pool GA with Mutation Alden H. Wright Computer Science Department University of Montana, USA wright@cs.umt.edu Jonathan E. Rowe School of Computer Science The University is to move the population closer to This paper was written while Alden Wright was visiting the School

Poli, Riccardo

331

An Evaluation of the Effects of Fixed-Time Schedules on Response Maintenance  

E-Print Network [OSTI]

it is currently unclear as to what mechanisms are responsible for this maintenance. The purposes of the current study were to (a) replicate previous research showing that responding will maintain under fixed-time (FT) schedules after a history of response...

Payne, Steven Wade

2013-05-31T23:59:59.000Z

332

Cyclic Testing of Concrete-Filled Circular Steel Bridge Piers having Encased Fixed-Based Detail  

E-Print Network [OSTI]

Cyclic Testing of Concrete-Filled Circular Steel Bridge Piers having Encased Fixed-Based Detail elements during earthquakes, this paper reports on cyclic inelastic tests executed to determine the maximum strength and ductility of four concrete-filled circular steel piers joined to a foundation detail proposed

Bruneau, Michel

333

Robust STATCOM control for the stabilisation of fixed-speed wind turbines during low voltages  

E-Print Network [OSTI]

and rotor- speed instability and more so if the wind turbine is connected to a weak grid. To prevent is still being produced by squirrel-cage induction generators (SCIGs) which are directly connected to the grid and operate at an almost fixed-speed [3]. They are advantageous as wind generators for their low

Pota, Himanshu Roy

334

DOCTORAL PROGRAMME MATHEMATICS AND PHYSICS, Subprogramme PHYSICS,  

E-Print Network [OSTI]

Slovenia is producing a significant share of its electricity in nuclear power plant. The doctoral programme of nuclear engineering stems from the requirements of the Nuclear power plant Krsko, Slovenian Nuclear SafetyDOCTORAL PROGRAMME MATHEMATICS AND PHYSICS, Subprogramme PHYSICS, Module NUCLEAR ENGINEERING

?umer, Slobodan

335

Discussion Notes on Physical Computation Samuel C. Fletcher and Jason Hoelscher-Obermaier  

E-Print Network [OSTI]

, 2010 Much has been written as of late on the status of the physical Church- Turing thesis as it is to solicit a dialog that will help clarify our own thoughts. 1 Introduction Historically the Church-Turing(k) is the Halting function.1 If 1 The Halting function is defines as follows. Fix an enumeration {Tn} of the Turing

WĂĽthrich, Christian

336

PHYSICS OF FLUIDS 24, 043102 (2012) A numerical investigation of the fluid mechanical  

E-Print Network [OSTI]

PHYSICS OF FLUIDS 24, 043102 (2012) A numerical investigation of the fluid mechanical sewing or jet of liquid falling onto a fixed surface is one of the simplest situations in fluid mechanics, yet by Chiu-Webster and Lister9 (henceforth CWL), who called it the "fluid mechanical sewing machine

Audoly, Basile

337

Process for the fabrication of aluminum metallized pyrolytic graphite sputtering targets  

DOE Patents [OSTI]

An improved method for fabricating pyrolytic graphite sputtering targets with superior heat transfer ability, longer life, and maximum energy transmission. Anisotropic pyrolytic graphite is contoured and/or segmented to match the erosion profile of the sputter target and then oriented such that the graphite's high thermal conductivity planes are in maximum contact with a thermally conductive metal backing. The graphite contact surface is metallized, using high rate physical vapor deposition (HRPVD), with an aluminum coating and the thermally conductive metal backing is joined to the metallized graphite target by one of four low-temperature bonding methods; liquid-metal casting, powder metallurgy compaction, eutectic brazing, and laser welding.

Makowiecki, Daniel M. (Livermore, CA); Ramsey, Philip B. (Livermore, CA); Juntz, Robert S. (Hayward, CA)

1995-01-01T23:59:59.000Z

338

Cascaded target normal sheath acceleration  

SciTech Connect (OSTI)

A cascaded target normal sheath acceleration (TNSA) scheme is proposed to simultaneously increase energy and improve energy spread of a laser-produced mono-energetic proton beam. An optimum condition that uses the maximum sheath field to accelerate the center of the proton beam is theoretically found and verified by two-dimensional particle-in-cell simulations. An initial 10 MeV proton beam is accelerated to 21 MeV with energy spread decreased from 5% to 2% under the optimum condition during the process of the cascaded TNSA. The scheme opens a way to scale proton energy lineally with laser energy.

Wang, W. P.; Shen, B. F.; Zhang, X. M.; Wang, X. F.; Xu, J. C.; Zhao, X. Y.; Yu, Y. H.; Yi, L. Q.; Shi, Y.; Zhang, L. G.; Xu, T. J.; Xu, Z. Z. [State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 (China)] [State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 (China)

2013-11-15T23:59:59.000Z

339

Life Pure Fusion Target Designs: Status and Prospects  

SciTech Connect (OSTI)

Analysis and radiation-hydrodynamics simulations for expected high-gain fusion target performance on a demonstration 1-GWe Laser Inertial Fusion Energy (LIFE) power plant are presented. The required laser energy driver is 2.2 MJ at a 0.351-{mu}m wavelength, and a fusion target gain greater than 60 at a repetition rate of 16 Hz is the design goal for economic and commercial attractiveness. A scaling-law analysis is developed to benchmark the design parameter space for hohlraum-driven central hot-spot ignition. A suite of integrated hohlraum simulations is presented to test the modeling assumptions and provide a basis for near-term experimental resolution of the key physics uncertainties on the National Ignition Facility.

Amendt, P; Dunne, M; Ho, D; Lindl, J

2011-10-20T23:59:59.000Z

340

Targets and processes for fabricating same  

DOE Patents [OSTI]

In particular embodiments, the present disclosure provides targets including a metal layer and defining a hollow inner surface. The hollow inner surface has an internal apex. The distance between at least two opposing points of the internal apex is less than about 15 .mu.m. In particular examples, the distance is less than about 1 .mu.m. Particular implementations of the targets are free standing. The targets have a number of disclosed shaped, including cones, pyramids, hemispheres, and capped structures. The present disclosure also provides arrays of such targets. Also provided are methods of forming targets, such as the disclosed targets, using lithographic techniques, such as photolithographic techniques. In particular examples, a target mold is formed from a silicon wafer and then one or more sides of the mold are coated with a target material, such as one or more metals.

Cowan, Thomas (Dresden, DE); Malekos, Steven (Reno, NV); Korgan, Grant (Reno, NV); Adams, Jesse (Reno, NV); Sentoku, Yasuhiko (Reno, NV); Le Galloudec, Nathalie (Reno, NV); Fuchs, Julien (Paris, FR)

2012-07-24T23:59:59.000Z

Note: This page contains sample records for the topic "fixed target physics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Review of the Renewable Energy Target  

E-Print Network [OSTI]

Review of the Renewable Energy Target Response to Expert Panel's Call for Submissions Paper #12;NSW Government Submission to the Review of the Renewable Energy Target, May 2014 2/20 Contents EXECUTIVE SUMMARY........................................................................................................................... 3 RENEWABLE ENERGY IN NSW

Peters, Richard

342

Qualified Target Industry Tax Refund (Florida)  

Broader source: Energy.gov [DOE]

The Qualified Target Industry Tax Refund incentive is available for companies that create high wage jobs in targeted high value-added industries. The incentive refunds up to $3,000 per new full...

343

Nanoparticles for targeting the infarcted heart  

E-Print Network [OSTI]

We report a nanoparticulate system capable of targeting the heart after myocardial infarction (MI). Targeting is based on overexpression of angiotensin II type 1 (AT1) receptor in the infarcted heart. Liposomes 142 nm in ...

Dvir, Tal

344

New results and perspectives on R_{AA} measurements below 20 GeV CM-energy at fixed target machines  

E-Print Network [OSTI]

Transverse momentum spectra of pi^{+/-} at midrapidity are measured at high p_T in p+p and p+Pb collisions at 158 GeV/nucleon beam energy by the NA49 experiment. This study is complementary to our previous results on the same spectra from Pb+Pb collisions. The nuclear modification factors R_{A+A/p+p}, R_{p+A/p+p} and R_{A+A/p+A} as a function of p_T are extracted and compared to RHIC measurements, thus providing insight into the energy dependence of nuclear modification. The modification factor R_{A+A/p+A} proved to be consistent with our previous results on the central to peripheral modification factor R_{CP}. The limitation of our current p_T range is discussed and planned future upgrades are outlined. Some aspects of the FAIR-CBM experiment are also presented as a natural future continuation of the measurements at very high p_T.

Andras Laszlo; Zoltan Fodor; Gyorgy Vesztergombi

2007-03-20T23:59:59.000Z

345

Energy Dependence of Direct-Quarkonium Production in pp Collisions from Fixed-Target to LHC Energies: Complete One-Loop Analysis  

E-Print Network [OSTI]

We compute the energy dependence of the P_T-integrated cross section of directly produced quarkonia in pp collisions at next-to-leading order (NLO), namely up to alpha_s^3, within nonrelativistic QCD (NRQCD). Our analysis is based on the idea that the P_T-integrated and the P_T-differential cross sections can be treated as two different observables. The colour-octet NRQCD parameters needed to predict the P_T-integrated yield can thus be extracted from the fits of the P_T-differential cross sections at mid and large P_T. For the first time, the total cross section is evaluated in NRQCD at full NLO accuracy using the recent NLO fits of the P_T-differential yields at RHIC, the Tevatron and the LHC. Both the normalisation and the energy dependence of the J/psi, psi' and Upsilon(1S), we obtained, are in disagreement with the data irrespective of the fit method. The same is true if one uses CEM-like colour-octet NRQCD parameters. If, on the contrary, one disregards the colour-octet contribution, the existing data i...

Feng, Yu; Wang, Jian-Xiong

2015-01-01T23:59:59.000Z

346

Development of granular target for CADS  

E-Print Network [OSTI]

Subcritical core/blanket #12;· Solid target options, which consist of a solid material in the form of rods 5L/s Width of Lacuna 7cm #12;CW-316LSS The free surface in windowless target Water loop test-Parallel CFD (GPU) for Beam-Target-Coupled 15360 cores Test by the electron beam coupled with water Annular

McDonald, Kirk

347

E-Print Network 3.0 - approximation non-gaussian fixed Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

of Statistics, Carnegie Mellon University; Masci, Frank - Infrared Processing and Analysis Center, California Institute of Technology Collection: Mathematics ; Physics 4...

348

Probing new physics with flavor physics (and probing flavor physics with new physics)  

E-Print Network [OSTI]

This is a written version of a series of lectures aimed at graduate students and postdoctoral fellows in particle theory/string theory/particle experiment familiar with the basics of the Standard Model. We begin with an overview of flavor physics and its implications for new physics. We emphasize the "new physics flavor puzzle". Then, we give four specific examples of flavor measurements and the lessons that have been (or can be) drawn from them: (i) Charm physics: lessons for supersymmetry from the upper bound on $\\Delta m_D$. (ii) Bottom physics: model independent lessons on the KM mechanism and on new physics in neutral B mixing from $S_{\\psi K_S}$. (iii) Top physics and beyond: testing minimal flavor violation at the LHC. (iv) Neutrino physics: interpreting the data on neutrino masses and mixing within flavor models.

Yosef Nir

2007-08-14T23:59:59.000Z

349

Physics 151 Lecture 1 Physics 207: Lecture 1, Pg 1  

E-Print Network [OSTI]

Page 1 Physics 151 ­ Lecture 1 Physics 207: Lecture 1, Pg 1 Physics 207, Sections: 301/601Physics 207, Sections: 301/601 ­­ 314/614314/614 General Physics IGeneral Physics I MichaelMichael Winokur of the courseScope of the course Begin chapter 1Begin chapter 1 Homepage:Homepage: http://romano.physics

Winokur, Michael

350

Physics division. Progress report for period ending September 30, 1996  

SciTech Connect (OSTI)

This report covers the research and development activities of the Physics Division for the 1995 and 1996 fiscal years, beginning October 1, 1994, and ending September 30, 1996. The activities of the Division continue to be concentrated in the areas of experimental nuclear physics, experimental atomic physics, and theoretical nuclear and atomic physics. In addition, there are smaller programs in plasma diagnostics and data compilation and evaluation. During the period of this report, there has been considerable success in bringing the Holifield Radioactive Ion Beam Facility (HRIBF) into routine operation. The budgets of the nuclear physics portion of the Division have increased each year in nearly all areas, and several new members have been added to the Division research and development staff. On August 30, 1996, the HRIBF successfully accelerated its first radioactive ion beams, {sup 69}As and {sup 70}As. Prior to this, the heart of the facility, the RIB injector system, was completed, including installation of a remote handling system for the target/ion source assembly. Target and ion source development is likely to be the technical key to success of the HRIBF. We have expanded our efforts in those development areas. Of special note is the development of highly permeable composite targets which have now been shown to allow release of difficult-to-produce radioactive ions such as {sup 17,18}F. A summary of the HRIBF work is provided in Chapter 1, along with supporting activities of the Joint Institute for Heavy Ion Research.

Ball, S.J. [ed.

1997-04-01T23:59:59.000Z

351

Test Plan for Evaluating Hammer and Fixed Cutter Grinders Using Multiple Varieties and Moistures of Biomass Feedstock  

SciTech Connect (OSTI)

Biomass preprocessing is a critical operation in the preparation of feedstock for the front-end of a cellulosic ethanol biorefinery. Its purpose is to chop, grind, or otherwise format the biomass material into a suitable feedstock for optimum conversion to ethanol and other bioproducts. Without this operation, the natural size, bulk density, and flowability characteristics of harvested biomass would decrease the capacities and efficiencies of feedstock assembly unit operations and biorefinery conversion processes to the degree that programmatic cost targets could not be met. The preprocessing unit operation produces a bulk flowable material that 1) improves handling and conveying efficiencies throughout the feedstock assembly system and biorefinery 2) increases biomass surface areas for improved pretreatment efficiencies, 3) reduces particle sizes for improved feedstock uniformity and density, and 4) fractionates structural components for improved compositional quality. The Idaho National Laboratory (INL) is tasked with defining the overall efficiency/effectiveness of current commercial hammer and fixed cutter grinding systems and other connecting systems such as harvest and collection, storage, transportation, and handling for a wide variety of feedstock types used in bioethanol or syngas production. This test plan details tasks and activities for two separate full-scale grinding tests: Material Characterization Test and Machine Characterization Test. For the Material Characterization Test, a small amount (~5-7 tons each) of several feedstock varieties will be ground. This test will define the fractionation characteristics of the grinder that affect the bulk density, particle size distribution, and quality of the size reduced biomass resulting from different separation screen sizes. A specific screen size will be selected based on the characteristics of the ground material. The Machine Characterization Test will then use this selected screen to grind several 30-ton batches of different feedstock varieties and moistures. This test will focus on identifying the performance parameters of the grinding system specific to the feed, fractionation, and screen separation components and their affect on machine capacity and efficiency.

Not listed

2007-07-01T23:59:59.000Z

352

Whither Nuclear Physics ?  

E-Print Network [OSTI]

Nuclear Physics has had its ups and downs. However in recent years, bucked up by some new and often puzzling data, it has become a potentially very rich field. We review some of these exciting developments in a few important sectors of nuclear physics. Emphasis shall be on the study of exotic nuclei and the new physics that these nuclei are teaching us.

Syed Afsar Abbas

2008-01-07T23:59:59.000Z

353

in Condensed Matter Physics  

E-Print Network [OSTI]

Master in Condensed Matter Physics ­ Master académique #12;2 #12;3 Students at the University. Condensed matter physics is about explaining and predicting the relationship between the atomic, and broad education in the field of condensed matter physics · introduce you to current research topics

van der Torre, Leon

354

PHYSICS, QUALITATIVE BIBLIOGRAPHY  

E-Print Network [OSTI]

PHYSICS, QUALITATIVE C BIBLIOGRAPHY D. G. Bobrow and R J. Hayes, eds., Artif. Intell. 24," in Gentner and Stevens, 1983, pp. 155--190. J. de Kleer and J. S. Brown "A Qualitative Physics Based.J., 1983. P. Hayes, "The Naive Physics Manifesto," in Hobbs and Moore, 1985, pp 1--36 J R Hobbs and R C

de Kleer, Johan

355

B Physics at LHCb  

E-Print Network [OSTI]

LHCb is a dedicated detector for b physics at the LHC. In this article we present a concise review of the detector design and performance together with the main physics goals and their relevance for a precise test of the Standard Model and search of New Physics beyond it.

Monica Pepe Altarelli; Frederic Teubert

2008-02-13T23:59:59.000Z

356

Quantum Physics Einstein's Gravity  

E-Print Network [OSTI]

Quantum Physics confronts Einstein's Gravity Matt Visser Physics Department Washington University Saint Louis USA Science Saturdays 13 October 2001 #12; Quantum Physics confronts Einstein's Gravity and with Einstein's theory of gravity (the general relativity) is still the single biggest theoretical problem

Visser, Matt

357

Physical Probability Patrick Maher  

E-Print Network [OSTI]

Physical Probability Patrick Maher University of Illinois at Urbana-Champaign October 13, 2007 ABSTRACT. By "physical probability" I mean the empirical concept of probability in or- dinary language-extreme physical probabilities are compatible with determin- ism. Two principles, called specification

Fitelson, Branden

358

Therapeutic target for protozoal diseases  

DOE Patents [OSTI]

A novel Fasciclin Related Adhesive Protein (FRAP) from Plasmodium and related parasites is provided as a target for therapeutic intervention in diseases caused by the parasites. FRAP has been shown to play a critical role in adhesion to, or invasion into, host cells by the parasite. Furthermore, FRAP catalyzes the neutralization of heme by the parasite, by promoting its polymerization into hemozoin. This invention provides methods and compositions for therapies based on the administration of protein, DNA or cell-based vaccines and/or antibodies based on FRAP, or antigenic epitopes of FRAP, either alone or in combination with other parasite antigens. Methods for the development of compounds that inhibit the catalytic activity of FRAP, and diagnostic and laboratory methods utilizing FRAP are also provided.

Rathore, Dharmendar (Blacksburg, VA); Jani, Dewal (Blacksburg, VA); Nagarkatti, Rana (Blacksburg, VA)

2008-10-21T23:59:59.000Z

359

Fabrication of boron sputter targets  

DOE Patents [OSTI]

A process for fabricating high density boron sputtering targets with sufficient mechanical strength to function reliably at typical magnetron sputtering power densities and at normal process parameters. The process involves the fabrication of a high density boron monolithe by hot isostatically compacting high purity (99.9%) boron powder, machining the boron monolithe into the final dimensions, and brazing the finished boron piece to a matching boron carbide (B.sub.4 C) piece, by placing aluminum foil there between and applying pressure and heat in a vacuum. An alternative is the application of aluminum metallization to the back of the boron monolithe by vacuum deposition. Also, a titanium based vacuum braze alloy can be used in place of the aluminum foil.

Makowiecki, Daniel M. (Livermore, CA); McKernan, Mark A. (Livermore, CA)

1995-01-01T23:59:59.000Z

360

Ignition of deuterium-trtium fuel targets  

DOE Patents [OSTI]

A method of igniting a deuterium-tritium ICF fuel target to obtain fuel burn in which the fuel target initially includes a hollow spherical shell having a frozen layer of DT material at substantially uniform thickness and cryogenic temperature around the interior surface of the shell. The target is permitted to free-fall through a target chamber having walls heated by successive target ignitions, so that the target is uniformly heated during free-fall to at least partially melt the frozen fuel layer and form a liquid single-phase layer or a mixed liquid/solid bi-phase layer of substantially uniform thickness around the interior shell surface. The falling target is then illuminated from exteriorly of the chamber while the fuel layer is at substantially uniformly single or bi-phase so as to ignite the fuel layer and release energy therefrom.

Musinski, Donald L. (Saline, MI); Mruzek, Michael T. (Britton, MI)

1991-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "fixed target physics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Ignition of deuterium-tritium fuel targets  

DOE Patents [OSTI]

Disclosed is a method of igniting a deuterium-tritium ICF fuel target to obtain fuel burn in which the fuel target initially includes a hollow spherical shell having a frozen layer of DT material at substantially uniform thickness and cryogenic temperature around the interior surface of the shell. The target is permitted to free-fall through a target chamber having walls heated by successive target ignitions, so that the target is uniformly heated during free-fall to at least partially melt the frozen fuel layer and form a liquid single-phase layer or a mixed liquid/solid bi-phase layer of substantially uniform thickness around the interior shell surface. The falling target is then illuminated from exteriorly of the chamber while the fuel layer is at substantially uniformly single or bi-phase so as to ignite the fuel layer and release energy therefrom. 5 figures.

Musinski, D.L.; Mruzek, M.T.

1991-08-27T23:59:59.000Z

362

>300GHz Fixed-Frequency and Voltage-Controlled Fundamental Oscillators in an InP DHBT Process  

E-Print Network [OSTI]

>300GHz Fixed-Frequency and Voltage-Controlled Fundamental Oscillators in an InP DHBT Process, 93106, USA Abstract -- We report fundamental fixed-frequency and voltage-controlled oscillators bandwidth. Index Terms -- Millimeter-wave oscillators, voltage-controlled oscillators, MMIC oscillators. I

Rodwell, Mark J. W.

363

Experimental Target Injection and Tracking System  

SciTech Connect (OSTI)

Targets must be injected into an IFE power plant with an accuracy of and plusmn; 5 mm at a rate of approximately 5 to 10 each second. Targets must be tracked very accurately to allow driver beams to be aligned with defined points on the targets with accuracy {+-}200{mu}m for indirect drive and {+-}20{mu}m for direct drive. An experimental target injection and tracking system has been designed and is being constructed at General Atomics to investigate injection and tracking of both direct drive and indirect drive targets. The design is modular to allow testing of alternate target acceleration and tracking methods. The injector system will be used as a tool for testing the survivability of various target designs and provide feed back to the target designers. This 30 m long system will be the centerpiece of a Facility for developing IFE target fabrication and injection technologies. A high-speed high-flow gas valve (designed and built by Oak Ridge National Laboratory) will provide helium propellant gas to the targets. To avoid target damage from excessive acceleration, an 8 m gun barrel is being built to achieve 400 m/s target speed while not exceeding 10,000 m/s{sup 2} acceleration. Direct-drive targets are protected in the barrel by sabots that are spring loaded to separate into two halves after acceleration. A sabot deflector directs the sabot halves away from the target injection path. Gas expansion chambers and orifices, keep propellant gas out of the target-tracking region. Targets will be optically tracked with laser beams and line scan cameras. High-speed computations will calculate target position in less than 2 ms based on the output from the line-scan cameras. Target position and arrival time to a plane in the reaction chamber center will be predicted in real-time based on early target position measurements. The system design, construction progress, and early testing results will be presented.

Petzoldt, R.W. [General Atomics (United States); Alexander, N.B. [General Atomics (United States); Drake, T.J. [General Atomics (United States); Goodin, D.T. [General Atomics (United States); Stemke, R.W. [General Atomics (United States); Jonestrask, K

2003-07-15T23:59:59.000Z

364

Physics at Strathclyde N. Langford  

E-Print Network [OSTI]

#12;Physics at Strathclyde N. Langford Department of Physics University of Strathclyde #12 and Misconceptions o "There's no money in physics" o "I like the idea of a physics degree but what actual jobs do physics degree is great ­ if you want to teach physics" Untrue Physics leads to engineering NO

Mottram, Nigel

365

Neutrino Oscillation Physics  

E-Print Network [OSTI]

To complement the neutrino-physics lectures given at the 2011 International School on Astro Particle Physics devoted to Neutrino Physics and Astrophysics (ISAPP 2011; Varenna, Italy), at the 2011 European School of High Energy Physics (ESHEP 2011; Cheila Gradistei, Romania), and, in modified form, at other summer schools, we present here a written description of the physics of neutrino oscillation. This description is centered on a new way of deriving the oscillation probability. We also provide a brief guide to references relevant to topics other than neutrino oscillation that were covered in the lectures.

Boris Kayser

2013-12-25T23:59:59.000Z

366

Fixed-bed gasification research using US coals. Volume 9. Gasification of Elkhorn bituminous coal  

SciTech Connect (OSTI)

A single-staged, fixed-bed Wellman-Galusha gasifier coupled with a hot, raw gas combustion system and scrubber has been used to gasify numerous coals from throughout the United States. The gasification test program is organized as a cooperative effort by private industrial participants and governmental agencies. The consortium of participants is organized under the Mining and Industrial Fuel Gas (MIFGa) group. This report is the ninth volume in a series of reports describing the atmospheric pressure, fixed-bed gasification of US coals. This specific report describes the gasification of Elkhorn bituminous coal. The period of gasificastion test was September 13 to October 12, 1983. 9 refs., 24 figs., 35 tabs.

Thimsen, D.; Maurer, R.E.; Pooler, A.R.; Pui, D.; Liu, B.; Kittelson, D.

1985-05-01T23:59:59.000Z

367

Fixed-bed gasification research using US coals. Volume 7. Gasification of Piney Tipple bituminous coal  

SciTech Connect (OSTI)

A single-staged, fixed-bed Wellman-Galusha gasifier coupled with a hot, raw gas combustion system and scrubber has been used to gasify numerous coals from throughout the United States. The gasification test program is organized as a cooperative effort by private industrial participants and governmental agencies. The consortium of participants is organized under the Mining and Industrial Fuel Gas (MIFGa) Group. This report is the seventh volume in a series of reports describing the atmospheric pressure, fixed-bed gasification of US coals. This specific report describes the gasification of Piney Tipple bituminous coal. The period of the gasification test was July 18-24, 1983. 6 refs., 20 figs., 17 tabs.

Thimsen, D.; Maurer, R.E.; Pooler, A.R.; Pui, D.; Liu, B.; Kittelson, D.

1985-05-01T23:59:59.000Z

368

The Barbero connection and its relation to the histories connection formalism without gauge fixing  

E-Print Network [OSTI]

We present a histories version of the connection formalism of general relativity. Such an approach introduces a spacetime description--a characteristic feature of the histories approach--and we discuss the extent to which the usual loop variables are compatible with a spacetime description. In particular, we discuss the definability of the Barbero connection without any gauge fixing. Although it is not the pullback of a spacetime connection onto the three-surface and it does not have a natural spacetime interpretation, this does not mean that the Barbero connection is not suitable variable for quantisation; it appears naturally in the formalism even in absence of gauge fixing. It may be employed therefore, to define loop variables similar to those employed in loop quantum gravity. However, the loop algebra would have to be augmented by the introduction of additional variables.

Ntina Savvidou

2006-02-07T23:59:59.000Z

369

One-parameter semigroups of analytic functions, fixed points and the Koenigs function  

SciTech Connect (OSTI)

Analogues of the Berkson-Porta formula for the infinitesimal generator of a one-parameter semigroup of holomorphic maps of the unit disc into itself are obtained in the case when, along with a Denjoy-Wolff point, there also exist other fixed points. With each one-parameter semigroup a so-called Koenigs function is associated, which is a solution, common for all elements of the one-parameter semigroup, of a certain functional equation (Schroeder's equation in the case of an interior Denjoy-Wolff point and Abel's equation in the case of a boundary Denjoy-Wolff point). A parametric representation for classes of Koenigs functions that takes account of the Denjoy-Wolff point and other fixed points of the maps in the one-parameter semigroup is presented. Bibliography: 19 titles.

Goryainov, Victor V; Kudryavtseva, Olga S [Volzhsky Institute of Humanities, Volgograd Region, Volzhsky (Russian Federation)

2011-07-31T23:59:59.000Z

370

Solar tracker motor having a fixed caliper and a translating caliper each with an electromagnetic brake system  

DOE Patents [OSTI]

Concepts and technologies described herein provide for an accurate and cost-effective method for rotating a solar array disk for tracking the movement of the sun. According to various aspects, a motor includes a fixed caliper and a translating caliper positioned adjacent to one another. Electromagnetically controlled brakes on the translating caliper grip the solar array disk while adjacent, but spaced apart, electromagnets on the fixed caliper and the translating caliper are energized to create an attractive force that pulls the translating caliper with the solar array disk toward the fixed caliper. After reaching the fixed caliper, brakes on the fixed caliper are engaged with the disk, brakes on the translating caliper are released from the disk, and the translating caliper is pushed back to the starting location where the process repeats until the desired rotation is completed.

Rau, Scott James

2013-01-29T23:59:59.000Z

371

Continuous Profiles of Cloud Microphysical Properties for the Fixed Atmospheric Radiation Measurement Sites  

SciTech Connect (OSTI)

The Atmospheric Radiation Measurement (ARM) Program defined a specific metric for the third quarter of Fiscal Year 2006 to produce and refine a one-year continuous time series of cloud microphysical properties based on cloud radar measurements for each of the fixed ARM sites. To accomplish this metric, we used a combination of recently developed algorithms that interpret radar reflectivity profiles, lidar backscatter profiles, and microwave brightness temperatures into the context of the underlying cloud microphysical structure.

Jensen, M; Jensen, K

2006-06-01T23:59:59.000Z

372

Analysis of the Newton-Sabatier scheme for inverting fixed-energy phase shifts  

E-Print Network [OSTI]

It is proved that the Newton-Sabatier (NS) procedure does not solve the inverse scattering problem with fixed-energy data and is not a valid inversion method, in the following sense: 1) the basic integral equation, introduced by R. Newton without derivation, in general, may be not solvable for some $r>0$, and in this case NS procedure breaks down: it produces a potential which is not locally integrable. 2) the ansatz $(\\ast)$ $K(r,s) = \\sum^\\infty_{l=0} c_l \\phi_l (r) u_l (s)$, used by R. Newton, is incorrect: the transformation operator $I-K$, corresponding to a generic does not have $K$ of the form $(\\ast),$ and 3) the set of potentials $q \\in L_{1,1},$ that can possibly be obtained by NS procedure, is not dense in the set of all $L_{1,1}$ potentials in the norm of $L_{1,1}$. Therefore one cannot justify NS procedure even for approximate solution of the inverse scattering problem with fixed-energy phase shifts as data. Thus, the NS procedure, if considered as a method for solving the inverse scattering problem, is based on an incorrect ansatz, the basic integral equation of NS procedure is, in general, not solvable for some $r>0$, and in this case this procedure breaks down, and NS procedure is not an inversion theory: it cannot recover generic potentials $q \\in L_{1,1}$ from their fixed-energy phase shifts. Suppose now that one considers another problem: given fixed-energy phase shifts, corresponding to some potential, find a potential which generates the same phase shifts. Then NS procedure does not solve this problem either: the basic integral equation, in general, may be not solvable for some $r>0$, and then NS procedure breaks down.

A. G. Ramm

2001-10-18T23:59:59.000Z

373

Fixed time artificial insemination of sheep using cervical and intrauterine insemination techniques  

E-Print Network [OSTI]

as to style and content by: Cha r, Advssory Comm ttee o ttee e er ttee Member Comm ttee Member August 1992 ABSTRACT The objectives of this study are to: 1) compare pregnancy rates of ewes artificially inseminated either at a fixed time or after... the onset of an observed estrus as determined by marker rams, 2) compare pregnancy rates of ewes artificially inseminated by either cervical or laparoscopic methods, 3) compare pregnancy rates of ewes artificially inseminated with different inseminate...

Bell, James H

1992-01-01T23:59:59.000Z

374

Simulation of Fischer-Tropsch Fixed-Bed Reactor in Different Reaction Media  

E-Print Network [OSTI]

-phase FTS in fixed-bed reactor as the liquid phase provides an optimum medium for the highly exothermic reaction due to its heat capacity and density [4]. Besides its excellent temperature control, this medium facilitates the in-situ extraction of heavy...] ( ) Co/MgO/SiO2 [20] ( ) Co/kieselguhr [21] ( ) Co/Al2O3 [22] 1.2.2 Commercial Scale Fischer-Tropsch Reactors FTS is an extremely exothermic process, which...

Bani Nasser, Laial Ahmad

2013-11-04T23:59:59.000Z

375

Property:OpenEI/UtilityRate/FixedDemandChargeMonth8 | Open Energy  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy ResourcesLoadingPenobscotInformation Max Jump to: navigation,Information FixedDemandChargeMonth8

376

Property:OpenEI/UtilityRate/FixedMonthlyCharge | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy ResourcesLoadingPenobscotInformation Max Jump to: navigation,InformationFixedMonthlyCharge Jump

377

Experiments in intermediate energy physics  

SciTech Connect (OSTI)

Research in experimental nuclear physics was done from 1979 to 2002 primarily at intermediate energy facilities that provide pion, proton, and kaon beams. Particularly successful has been the work at the Los Alamos Meson Physics Facility (LAMPF) on unraveling the neutron and proton contributions to nuclear ground state and transition densities. This work was done on a wide variety of nuclei and with great detail on the carbon, oxygen, and helium isotopes. Some of the investigations involved the use of polarized targets which allowed the extraction of information on the spin-dependent part of the triangle-nucleon interaction. At the Indiana University Cyclotron Facility (IUCF) we studied proton-induced charge exchange reactions with results of importance to astrophysics and the nuclear few-body problem. During the first few years, the analysis of heavy-ion nucleus scattering data that had been taken prior to 1979 was completed. During the last few years we created hypernuclei by use of a kaon beam at Brookhaven National Laboratory (BNL) and an electron beam at Jefferson Laboratory (JLab). The data taken at BNL for a study of the non-mesonic weak decay of the A particle in a nucleus are still under analysis by our collaborators. The work at JLab resulted in the best resolution hypernuclear spectra measured thus far with magnetic spectrometers.

Dehnhard, D.

2003-02-28T23:59:59.000Z

378

Comparison of fixed asymmetrical and symmetrical reflectors for evacuated tube solar receivers  

SciTech Connect (OSTI)

A computer simulation of the relative performance of certain truncated symmetrical and asymmetrical fixed reflector designs for solar energy collection was performed. The comparison was on the basis of annual energy delivered to a circular cylindrical evacuated tube receiver per unit of mirror area, but seasonal load information was also included to determine possible seasonal load matching advantages of one type of collector over another when storage is employed. Circumsolar radiation models based on recent correlations in the literature was included. Major conclusions were that: (1) Annual solar fractions of between 80% and 95% seem to be feasible with a load matching collector used with moderate energy storage, with 80-90% being a likely optimum; (2) CPC reflectors always gave the best annual output performance per unit of mirror area, and the lowest receiver area for situations of constant annual load, regardless of whether the storage is included in the system; (3) Asymmetrical concentrator are more cost-effective for strongly seasonally asymmetrical load patterns; (4) Fixed parabolic systems required much more receiver area than the symmetrical CPC and asymmetrical system investigated; (5) Concentration levels utilizable in fixed systems are higher than previously supposed, with 3.5:1 in an asymmetrical reflector being optimal or nearly optimal for the domestic load pattern used in the study; (6) Using a load matched reflector, the amount of storage required to achieve solar fractions of total thermal energy (space heating, water heating, clothes drying) above 90% in a residence appears to be much lower than previously thought.

Mills, D.R.; Monger, A. (Univ. of Sydney (Australia)); Morrison, G.L. (Univ. of New South Wales, Sydney (Australia))

1994-07-01T23:59:59.000Z

379

In-situ X-ray diffraction system using sources and detectors at fixed angular positions  

DOE Patents [OSTI]

An x-ray diffraction technique for measuring a known characteristic of a sample of a material in an in-situ state. The technique includes using an x-ray source for emitting substantially divergent x-ray radiation--with a collimating optic disposed with respect to the fixed source for producing a substantially parallel beam of x-ray radiation by receiving and redirecting the divergent paths of the divergent x-ray radiation. A first x-ray detector collects radiation diffracted from the sample; wherein the source and detector are fixed, during operation thereof, in position relative to each other and in at least one dimension relative to the sample according to a-priori knowledge about the known characteristic of the sample. A second x-ray detector may be fixed relative to the first x-ray detector according to the a-priori knowledge about the known characteristic of the sample, especially in a phase monitoring embodiment of the present invention.

Gibson, David M. (Voorheesville, NY); Gibson, Walter M. (Voorheesville, NY); Huang, Huapeng (Latham, NY)

2007-06-26T23:59:59.000Z

380

Faculty Position Therapeutic Medical Physics  

E-Print Network [OSTI]

spectroscopy, fluoroscopy, ultrasound, digital radiography, and nuclear medicine. The Colorado State University of subjects in Radiation Therapy Physics, Medical Imaging Physics, and Radiological Physics and Dosimetry

Note: This page contains sample records for the topic "fixed target physics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Physics high-ranking Journals (category 2) Advances in Physics  

E-Print Network [OSTI]

Physics high-ranking Journals (category 2) Advances in Physics Annual Review of Astronomy and Astrophysics Annual Review of Nuclear and Particle Science Applied Physics Letters Astronomy & Astrophysics Astronomy and Astrophysics Review Astrophysical Journal European Physical Journal D. Atomic, Molecular

382

Explanations of FreedomCAR/DOE Hydrogen Storage Technical Targets...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Explanations of FreedomCARDOE Hydrogen Storage Technical Targets Explanations of FreedomCARDOE Hydrogen Storage Technical Targets Summary of FreedomCAR Targets and Basis for...

383

The study of downstream targets and other characteristics of NTT  

E-Print Network [OSTI]

SAN DIEGO The Study of Downstream Targets and OtherOF THE THESIS The Study of Downstream Targets and Othera number of putative downstream targets of NTT, including

Fung, Michelle W.

2009-01-01T23:59:59.000Z

384

Independent Oversight Targeted Review, Y-12 National Security...  

Office of Environmental Management (EM)

Targeted Review, Y-12 National Security Complex - February 2012 Independent Oversight Targeted Review, Y-12 National Security Complex - February 2012 February 2012 Targeted Review...

385

Independent Oversight Targeted Review, Oak Ridge National Laboratory...  

Office of Environmental Management (EM)

Targeted Review, Oak Ridge National Laboratory - April 2014 Independent Oversight Targeted Review, Oak Ridge National Laboratory - April 2014 April 2014 Targeted Review of...

386

Part I STATISTICAL PHYSICS 1 Statistical Physics  

E-Print Network [OSTI]

In this first part of the book we shall study aspects of classical statistical physics that every physicist should know, but are not usually treated in elementary thermodynamics courses. Our study will lay the microphysical (particle-scale) foundations for the continuum physics of Parts II—VI. As a central feature of our approach, we shall emphasize the intimate connections between the relativistic formulation of statistical physics and its nonrelativistic limit, and between quantum statistical physics and the classical theory. Throughout, we shall presume that the reader is familiar with elementary thermodynamics, but not with other aspects of statistical physics. In Chap. 2 we will study kinetic theory — the simplest of all formalisms for analyzing systems of huge numbers of particles (e.g., molecules of air, or neutrons diffusing through a nuclear reactor, or photons produced in the big-bang origin of the Universe). In kinetic theory the key concept is the “distribution function ” or “number density of particles in phase space”, N; i.e., the number of particles per unit 3-dimensional volume of ordinary space and per unit 3-dimensional volume of momentum space. Despite first appearances, N turns out to be a geometric, frame-independent entity. This N and the frame-independent laws it

unknown authors

387

Part I STATISTICAL PHYSICS 1 Statistical Physics  

E-Print Network [OSTI]

In this first part of the book we shall study aspects of classical statistical physics that every physicist should know, but are not usually treated in elementary thermodynamics courses. Our study will lay the microphysical (particle-scale) foundations for the continuum physics of Parts II—VI. As a central feature of our approach, we shall emphasize the intimate connections between the relativistic formulation of statistical physics and its nonrelativistic limit, and between quantum statistical physics and the classical theory. Throughout, we shall presume that the reader is familiar with elementary thermodynamics, but not with other aspects of statistical physics. In Chap. 2 we will study kinetic theory — the simplest of all formalisms for analyzing systems of huge numbers of particles (e.g., molecules of air, or neutrons diffusing through a nuclear reactor, or photons produced in the big-bang origin of the Universe). In kinetic theory the key concept is the “distribution function ” or “number density of particles in phase space”, N; i.e., the number of particles per unit 3-dimensional volume of ordinary space and per unit 3-dimensional volume of momentum space. Despite first appearances, N turns out to be a geometric, frame-independent entity. This N and the frame-independent laws it

unknown authors

2004-01-01T23:59:59.000Z

388

Part I STATISTICAL PHYSICS 1 Statistical Physics  

E-Print Network [OSTI]

In this first part of the book we shall study aspects of classical statistical physics that every physicist should know but are not usually treated in elementary thermodynamics courses. This study will lay the microphysical (particle-scale) foundations for the continuum physics of Parts II—VI. Throughout, we shall presume that the reader is familiar with elementary thermodynamics, but not with other aspects of statistical physics. As a central feature of our approach, we shall emphasize the intimate connections between the relativistic formulation of statistical physics and its nonrelativistic limit, and between quantum statistical physics and the classical theory. Chapter 2 will deal with kinetic theory, which is the simplest of all formalisms for studying systems of huge numbers of particles (e.g., molecules of air, or neutrons diffusing through a nuclear reactor, or photons produced in the big-bang origin of the Universe). In kinetic theory the key concept is the “distribution function ” or “number density of particles in phase space”, N; i.e., the number of particles per unit 3-dimensional volume of ordinary space and per unit 3-dimensional volume of momentum space. Despite first appearances, N turns out to be a geometric, frame-independent entity. This N and the laws it obeys provide

unknown authors

389

Target diagnostic system for the National Ignition Facility (NIF)  

SciTech Connect (OSTI)

A review of recent progress on the design of a diagnostic system proposed for ignition target experiments on the National Ignition Facility (NIF) will be presented. This diagnostic package contains an extensive suite of optical, x-ray, gamma-ray, and neutron diagnostics that enable measurements of the performance of both direct and indirect driven NIF targets. The philosophy used in designing all of the diagnostics in the set has emphasized redundant and independent measurement of fundamental physical quantities relevant to the operation of the NIF target. A unique feature of these diagnostics is that they are being designed to be capable of operating, in the high radiation, EMP, and debris backgrounds expected on the NIF facility. The diagnostic system proposed can be categorized into three broad areas: laser characterization, hohlraum characterization, and capsule performance diagnostics. The operating principles of a representative instrument from each class of diagnostic employed in this package will be summarized and illustrated with data obtained in recent prototype diagnostic tests.

Leeper, R.J.; Chandler, G.A.; Cooper, G.W.; Derzon, M.S. [and others

1996-07-01T23:59:59.000Z

390

Radioactive targets for nuclear astrophysics research at LANSCE  

SciTech Connect (OSTI)

During the past few years we have made measurements of (n,p) and (n,{alpha}) cross sections on several radioactive nuclei of importance to nuclear astrophysics. The measurements were made at the Manuel Lujan, Jr., Neutron Scattering Center (LANSCE) from thermal neutron energy to approximately 100 keV. Successful measurements have been completed on the radioisotopes {sup 7}Be, {sup 22}Na and {sup 36}Cl while preliminary data have been taken on targets of {sup 54}Mn and {sup 55}Fe. Similar measurements have also been made on the stable isotopes {sup 14}N, {sup 17}O and {sup 35}Cl. We are currently assembling a 4{pi} barium fluoride (BaF{sub 2}) detector which will allow us to expand our program to (n,{gamma}) measurements. The (n,{gamma}) (and in some cases future (n,p)) measurements will require targets with higher specific activity and greater chemical purity than we have so far been able to use. We discuss the fabrication techniques used for the samples produced so far, the requirements the future (n,{gamma}) targets must meet and our current plans for producing them, and the physics motivations for the measurements.

Koehler, P.E.; O'Brien, H.A.; Gursky, J.C.

1990-01-01T23:59:59.000Z

391

Tensor Target Polarization at TRIUMF  

SciTech Connect (OSTI)

The first measurements of tensor observables in $\\pi \\vec{d}$ scattering experiments were performed in the mid-80's at TRIUMF, and later at SIN/PSI. The full suite of tensor observables accessible in $\\pi \\vec{d}$ elastic scattering were measured: $T_{20}$, $T_{21}$, and $T_{22}$. The vector analyzing power $iT_{11}$ was also measured. These results led to a better understanding of the three-body theory used to describe this reaction. %Some measurements were also made in the absorption and breakup channels. A direct measurement of the target tensor polarization was also made independent of the usual NMR techniques by exploiting the (nearly) model-independent result for the tensor analyzing power at 90$^\\circ _{cm}$ in the $\\pi \\vec{d} \\rightarrow 2p$ reaction. This method was also used to check efforts to enhance the tensor polarization by RF burning of the NMR spectrum. A brief description of the methods developed to measure and analyze these experiments is provided.

Smith, G

2014-10-27T23:59:59.000Z

392

Ph.D. Physics Program Ph.D. in Physics  

E-Print Network [OSTI]

Ph.D. Physics Program Ph.D. in Physics Department(s) Physics and Astronomy College Sciences Program Assessment Coordinator Michael Pravica pravica@physics.unlv.edu 895-1723 Five-Year Implementation Dates (2010 for physics at the graduate level 4. understand statistical physics at the graduate level 5. perform

Hemmers, Oliver

393

THE PHYSICS MAJOR (Physics and Astronomy & Astrophysics Streams)  

E-Print Network [OSTI]

THE PHYSICS MAJOR (Physics and Astronomy & Astrophysics Streams) Overview: Physics examines, to the behaviour of matter on the subatomic scale - and everything in between. Studying Physics at UWA gives you access to the frontiers of modern physics, built on the pillars of quantum physics and relativity. You

Tobar, Michael

394

Moller Polarimetry with Atomic Hydrogen Targets  

SciTech Connect (OSTI)

A proposal to use polarized atomic hydrogen gas as the target for electron beam polarimetry based on the Moller scattering is described. Such a gas, stored in an ultra-cold magnetic trap, would provide a target of practically 100\\% polarized electrons. It is conceivable to reach a $\\sim$0.3\\% systematic accuracy of the beam polarimetry with such a target. Feasibility studies for the CEBAF electron beam have been performed.

Chudakov, Eugene [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); Luppov, V. [University of Michigan Spin Physics Center, Ann Arbor, MI (United States)

2012-06-01T23:59:59.000Z

395

DOE Program/Targets and Workshop Objectives  

Broader source: Energy.gov (indexed) [DOE]

Nancy Garland DOE Hydrogen Program Fuel Cell Operation at Sub- Freezing Temperatures DOE ProgramTargets and Workshop Objectives Sub-Freezing Temperature Effects on Fuel Cells...

396

Enterprise Assessments, Lessons Learned from Targeted Reviews...  

Energy Savers [EERE]

purpose of these targeted assessments was to evaluate the flowdown of occupational radiation protection program requirements into work planning, control, and execution...

397

Physics Topics - MST - UW Plasma Physics  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest RegionatSearch Welcome to theNews & Blog »Physics Physics Print

398

Symmetries in physics  

E-Print Network [OSTI]

The concept of symmetries in physics is briefly reviewed. In the first part of these lecture notes, some of the basic mathematical tools needed for the understanding of symmetries in nature are presented, namely group theory, Lie groups and Lie algebras, and Noether's theorem. In the second part, some applications of symmetries in physics are discussed, ranging from isospin and flavor symmetry to more recent developments involving the interacting boson model and its extension to supersymmetries in nuclear physics.

Roelof Bijker

2005-09-02T23:59:59.000Z

399

Nuclear and Particle Physics Conference 2631 May, 2003, Dubrovnik, Croatia  

E-Print Network [OSTI]

Nuclear and Particle Physics Conference 26­31 May, 2003, Dubrovnik, Croatia Hard Exclusive all kinematic region A. Borissov, NAPP 2003, May 28, Dubrovnik, Croatia #12; The Target and Beam, Dubrovnik, Croatia #12; Generalized Parton Distributions (GPDs) Orbital Angular Momentum Lq Compton (DVCS

400

High-power targets: experience and R&D for 2 MW  

SciTech Connect (OSTI)

High-power particle production targets are crucial elements of future neutrino and other rare particle beams. Fermilab plans to produce a beam of neutrinos (LBNE) with a 2.3 MW proton beam (Project X). Any solid target is unlikely to survive for an extended period in such an environment - many materials would not survive a single beam pulse. We are using our experience with previous neutrino and antiproton production targets, along with a new series of R&D tests, to design a target that has adequate survivability for this beamline. The issues considered are thermal shock (stress waves), heat removal, radiation damage, radiation accelerated corrosion effects, physics/geometry optimization and residual radiation.

Hurh, P.; /Fermilab; Caretta, O.; Davenne, T.; Densham, C.; Loveridge, P.; /Rutherford; Simos, N.; /Brookhaven

2011-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "fixed target physics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Physics at LHC  

E-Print Network [OSTI]

The prospects for physics at the LHC are discussed, starting with the foretaste, preparation (and perhaps scoop) provided by the Tevatron, in particular, and then continuing through the successive phases of LHC operation. These include the start-up phase, the early physics runs, the possible search for new physics in double diffraction, the continuation to nominal LHC running, and the possible upgrade of the LHC luminosity. Emphasis is placed on the prospects for Higgs physics and the search for supersymmetry. The progress and discoveries of the LHC will set the time-scale and agenda for the major future accelerator projects that will follow it.

John Ellis

2006-11-17T23:59:59.000Z

402

Cosmology and New Physics  

E-Print Network [OSTI]

A comparison of the standard models in particle physics and in cosmology demonstrates that they are not compatible, though both are well established. Basics of modern cosmology are briefly reviewed. It is argued that the measurements of the main cosmological parameters are achieved through many independent physical phenomena and this minimizes possible interpretation errors. It is shown that astronomy demands new physics beyond the frameworks of the (minimal) standard model in particle physics. More revolutionary modifications of the basic principles of the theory are also discussed.

A. D. Dolgov

2006-06-21T23:59:59.000Z

403

Nuclear Physics from QCD  

E-Print Network [OSTI]

Effective field theories provide a bridge between QCD and nuclear physics. I discuss light nuclei from this perspective, emphasizing the role of fine-tuning.

U. van Kolck

2008-12-20T23:59:59.000Z

404

Advances in Physical Chemistry  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Hindawi Publishing Corporation Advances in Physical Chemistry Volume 2011, Article ID 907129, 18 pages doi:10.11552011907129 Review Article Contrast and Synergy between...

405

Physical Protection Program Manual  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

Supplements DOE O 473.1, by establishing requirements for the physical protection of safeguards and security interests. Cancels: DOE M 5632.1C-1

2002-12-23T23:59:59.000Z

406

4.September.2013 Physics 3340  

E-Print Network [OSTI]

4.September.2013 Physics 3340 Principles of Environmental Physics Instructor: Brad de Young Physics and Physical Oceanography Memorial University, bdeyoung@physics.mun.ca Room C-3000 864-8738 The course will focus on basic physical principles of light, heat, energy and sound in the natural environment. For us

deYoung, Brad

407

Physics 129 Nuclear and Particle Physics  

E-Print Network [OSTI]

, homework solutions, handouts and announcements will be posted at my course web site: http://scipp.ucsc.edu/daw/phys129/enrolled This web site is password protected. The username and password will be announced materials will be distributed on the web site above. Nine texts on nuclear and particle physics, all

California at Santa Cruz, University of

408

Two-stage fixed-bed gasifier with selectable middle gas off-take point  

DOE Patents [OSTI]

A two-stage fixed bed coal gasifier wherein an annular region is in registry with a gasification zone underlying a devolatilization zone for extracting a side stream of high temperature substantially tar-free gas from the gasifier. A vertically displaceable skirt means is positioned within the gasifier to define the lower portion of the annular region so that vertical displacement of the skirt means positions the inlet into the annular region in a selected location within or in close proximity to the gasification zone for providing a positive control over the composition of the side stream gas.

Strickland, Larry D. (Morgantown, WV); Bissett, Larry A. (Morgantown, WV)

1992-01-01T23:59:59.000Z

409

Does Electricity (and Heat) Network Regulation have anything to learn from Fixed Line Telecoms?  

E-Print Network [OSTI]

 customers. It is in this context that fixed line  telecoms deregulation becomes of interest. Indeed energy network deregulation and telecoms  deregulation may indeed be technologically related by the fact that micro?grid or ‘island’ power and  heat systems might rely...  usually (but not always) different from the sort of  energy service driven investments that this paper envisages, where independent networks may arise  as part of the optimal asset configuration of a new entrant supply company (e.g. a local energy  service company based on a local combined heat and power...

Pollitt, Michael G.

410

Development of a fixed abrasive slicing technique (FAST) for reducing the cost of photovoltaic wafers  

SciTech Connect (OSTI)

This report examines a wafer slicing technique developed by Crystal Systems, Inc. that reduces the cost of photovoltaic wafers. This fixed, abrasive slicing technique (FAST) uses a multiwire bladepack and a diamond-plated wirepack; water is the coolant. FAST is in the prototype production stage and reduces expendable material costs while retaining the advantages of a multiwire slurry technique. The cost analysis revealed that costs can be decreased by making more cuts per bladepack and slicing more wafers per linear inch. Researchers studied the degradation of bladepacks and increased wirepack life. 21 refs.

Schmid, F. (Crystal Systems, Inc., Salem, MA (United States))

1991-12-01T23:59:59.000Z

411

Thermodynamics of a field theory with an infrared fixed point from gauge/gravity duality  

SciTech Connect (OSTI)

We use gauge/gravity duality to study the thermodynamics of a field theory with asymptotic freedom in the ultraviolet and a fixed point in the infrared. We find a high temperature quark-gluon phase and a low T conformal unparticle phase. The phase transition between the phases is of first order or continuous, depending on the ratio of the radii of asymptotic anti-de Sitter spaces at T=0 and T={infinity}. This is a prediction from a model of gauge/gravity duality, not yet verified on the field theory side.

Alanen, J.; Kajantie, K. [Department of Physics, Post Office Box 64, FI-00014 University of Helsinki (Finland); Helsinki Institute of Physics, Post Office Box 64, FI-00014 University of Helsinki (Finland)

2010-02-15T23:59:59.000Z

412

The fixed structurally robust internal model principle for linear multivariable regulators  

E-Print Network [OSTI]

)]~ = 0 where all the poles must be within C . The property described by (6) is defined as loop stability, Note that loop s . ability does not guarantee internal stability since un'table canoelle, t'ion may occur in the ce. . cede of T(s, 0, )F(s). W(s... for the degree of I'V. STER OF S"IENCE Vay 1980 Va jor Sub jec ~: Elec+r ical Engineering THE FIXED STRUCTURALLY ROBUST INTERNAL MODEL PRINCIPLE FOR LINEAR MULTIVARIABLE REGUIATORS A Thesis by JOHN THOMAS MCGRATH Aoproved as to style and content by...

McGrath, John Thomas

2012-06-07T23:59:59.000Z

413

The infrared fixed point of Landau gauge Yang-Mills theory  

E-Print Network [OSTI]

Over the last decade, the infrared behavior of Yang-Mills theory in the Landau gauge has been scrutinized with the help of Dyson-Schwinger equations and lattice calculations. In this contribution, we describe a technically simple approach to the deep infrared regime via Callan-Symanzik renormalization group equations in an epsilon expansion. This approach recovers, in an analytical and systematically improvable way, all the solutions previously found as solutions of the Dyson-Schwinger equations and singles out the solution favored by lattice calculations as the infrared-stable fixed point (for space-time dimensions above two).

Axel Weber

2012-11-07T23:59:59.000Z

414

A little rain doesn't fix it: Farmers and ranchers remain cautious as drought continues  

E-Print Network [OSTI]

A little rain doesn?t fix it Farmers and ranchers remain cautious as drought continues Summer 2012 tx H2O 11 ] Story by Danielle Kalisek Rains in the Brazos Valley early in 2012 helped this grass green up, but more rains are needed now... to help warm-season grasses. Photo by Danielle Kalisek. This might sound like a broken record, but it still rings true: Last year?s drought was historic the worst one-year drought in Texas? history. #31;ough recent rains in some parts of the state...

Kalisek, Danielle

2012-01-01T23:59:59.000Z

415

Modeling and Experimental Studies of Mercury Oxidation and Adsorption in a Fixed-Bed Reactor  

SciTech Connect (OSTI)

This report presents experimental and modeling mercury oxidation and adsorption data. Fixed-bed and single-particle models of mercury adsorption were developed. The experimental data were obtained with two reactors: a 300- W, methane-fired, tubular, quartz-lined reactor for studying homogeneous oxidation reactions and a fixed-bed reactor, also of quartz, for studying heterogeneous reactions. The latter was attached to the exit of the former to provide realistic combustion gases. The fixed-bed reactor contained one gram of coconut-shell carbon and remained at a temperature of 150oC. All methane, air, SO2, and halogen species were introduced through the burner to produce a radical pool representative of real combustion systems. A Tekran 2537A Analyzer coupled with a wet conditioning system provided speciated mercury concentrations. At 150°C and in the absence of HCl or HBr, the mercury uptake was about 20%. The addition of 50 ppm HCl caused complete capture of all elemental and oxidized mercury species. In the absence of halogens, SO2 increased the mercury adsorption efficiency to up to 30 percent. The extent of adsorption decreased with increasing SO2 concentration when halogens were present. Increasing the HCl concentration to 100 ppm lessened the effect of SO2. The fixed-bed model incorporates Langmuir adsorption kinetics and was developed to predict adsorption of elemental mercury and the effect of multiple flue gas components. This model neglects intraparticle diffusional resistances and is only applicable to pulverized carbon sorbents. It roughly describes experimental data from the literature. The current version includes the ability to account for competitive adsorption between mercury, SO2, and NO2. The single particle model simulates in-flight sorbent capture of elemental mercury. This model was developed to include Langmuir and Freundlich isotherms, rate equations, sorbent feed rate, and intraparticle diffusion. The Freundlich isotherm more accurately described in-flight mercury capture. Using these parameters, very little intraparticle diffusion was evident. Consistent with other data, smaller particles resulted in higher mercury uptake due to available surface area. Therefore, it is important to capture the particle size distribution in the model. At typical full-scale sorbent feed rates, the calculations underpredicted adsorption, suggesting that wall effects can account for as much as 50 percent of the removal, making it an important factor in entrained-mercury adsorption models.

Paula A. Buitrago, Mike Morrill, JoAnn S. Lighty, Geoffrey D.; Silcox,

2009-06-15T23:59:59.000Z

416

TARGET STATION INFRASTRUCTURE THE CNGS EXPERIENCE  

E-Print Network [OSTI]

of Aluminum Water cooled Current: 150kA (horn) ­ 180 kA (reflector) Pulse duration 7ms #12;Key elements Remote handling Remote station for radiation survey in the target chamber #12;CNGS Target Area I per cooling circuit 2007 run radiation effects on ventilation system electronics broken flexible stripline

McDonald, Kirk

417

THE ROTATING TARGET FLOW TEST FACILITY  

E-Print Network [OSTI]

@idom.com) Fernando Sordo, ESS Bilbao Tom McManamy, ORNL/SNS #12;Status of the RTFT 4th HPTW of a RotaAng Target for ESS · In 2009 ESS Bilbao worked out a preliminary design for a rotaZng target for ESS. · Disc formed by un-clad tungsten bricks cooled

McDonald, Kirk

418

Target Options for a Neutrino Factory  

E-Print Network [OSTI]

shield WC 6. Target station engineering Target integration Remote maintenance Shielding 7. Beam dump 7a possible/preferable? · Can the beam size be increased (from 1.2 mm (rms) baseline)? #12;Heat loads ­ Heating and material damage Issues ­ Heat load from 4 MW pulsed proton beam · Total Heat load

McDonald, Kirk

419

Possible Target Options Michael A. Green  

E-Print Network [OSTI]

from low Z material. The target material should be ductile, with high thermal conductivity and should. These materials are strong and non- corrosive. The problem with niobium-titanium is its poor thermal conductivity, a desirable target material should have a medium to high Z. For low energy drivers the targe should be made

McDonald, Kirk

420

Physics 141 & Physics 153 Laboratory Schedule -Physics 141 & 153 -Spring 2008  

E-Print Network [OSTI]

Physics 141 & Physics 153 i Laboratory Schedule - Physics 141 & 153 - Spring 2008 Monday Tuesday ­ No Labs! #12;Physics 141 & Physics 153 ii Lab Instructor Information Name: Office: Phone: Email: Mailbox: · Write your lab instructor's name on it · Give it to Theresa Sis, Main Physics Office, 116 Brace Lab

Farritor, Shane

Note: This page contains sample records for the topic "fixed target physics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

PHYSICAL PLANT POLICY & PROCEDURE  

E-Print Network [OSTI]

PHYSICAL PLANT POLICY & PROCEDURE TITLE PHYSICAL PLANT HIGH VOLTAGE PREVENTIVE MAINTENANCE OBJECTIVE AND PURPOSE To establish a consistent policy of performing Preventive Maintenance on high voltage by the G.S.A. Preventive Maintenance sections E- 29 (high voltage oil circuit breaker), E-32 (high voltage

Fernandez, Eduardo

422

Top physics at CDF  

SciTech Connect (OSTI)

Precision studies of top quark properties are a primary goal of the Run II physics program at the Fermilab Tevatron. Marking the first stages of this program, the CDF collaboration presents recent results on top pair production cross section, single top physics and top mass, using between 109 and 200 pb{sup -1} of Run II data.

Julia Thom

2004-06-24T23:59:59.000Z

423

Noncommutative Two Time Physics  

E-Print Network [OSTI]

We present a classical formalism describing two-time physics with Abelian canonical gauge field backgrounds. The formalism can be used as a starting point for the construction of an interacting quantized two-time physics theory in a noncommutative soace-time.

W. Chagas-Filho

2006-04-03T23:59:59.000Z

424

Physics of Binary Information  

E-Print Network [OSTI]

Basic concepts of theoretical particle physics, including quantum mechanics and Poincar\\'e invariance, the leptonic mass spectrum and the proton mass, can be derived, without reference to first principles, from intrinsic properties of the simplest elements of information represented by binary data. What we comprehend as physical reality is, therefore, a reflection of mathematically determined logical structures, built from elements of binary data.

Walter Smilga

2005-05-05T23:59:59.000Z

425

Physics at TESLA  

E-Print Network [OSTI]

The physics at a 500-800 GeV electron positron linear collider, TESLA, is reviewed. The machine parameters that impact directly on the physics are discussed and a few key performance goals for a detector at TESLA are given. Emphasis is placed on precision measurements in the Higgs and top sectors and on extrapolation to high energy scales in the supersymmetric scenario.

Grahame A. Blair

2001-04-25T23:59:59.000Z

426

Nuclear physics and cosmology  

SciTech Connect (OSTI)

There are important aspects of Cosmology, the scientific study of the large scale properties of the universe as a whole, for which nuclear physics can provide insights. Here, we will focus on Standard Big-Bang Nucleosynthesis and we refer to the previous edition of the School [1] for the aspects concerning the variations of constants in nuclear cosmo-physics.

Coc, Alain [Centre de Sciences Nucléaires et de Sciences de la Matičre (CSNSM), CNRS/IN2P3, Université Paris Sud 11, UMR 8609, Bâtiment 104, F-91405 Orsay Campus (France)

2014-05-09T23:59:59.000Z

427

Delayed neutrons measurement at the MEGAPIE target  

E-Print Network [OSTI]

In the framework of the Neutronic and Nuclear Assessment Task Group of the MEGAPIE experiment we measured the delayed neutron (DN) flux at the top of the target. The measurement was proposed mainly for radioprotection purposes since the DN flux at the top of the target has been estimated to be of the same order of magnitude as the prompt neutron flux. Given the strong model-dependence of DN predictions, the measurement of DN contribution to the total neutron activity at the top of the target was thus desired. Moreover, this measurement is complementary to the DN experiments performed at PNPI (Gatchina) on solid lead and bismuth targets. The DN measurement at MEGAPIE was performed during the start-up phase of the target. In this paper we present a detailed description of the experimental setup and some preliminary results on decay spectra.

Stefano Panebianco; Pavel Bokov; Diane Dore; Xavier Ledoux; Alain Letourneau; Aurelien Prevost; Danas Ridikas

2007-05-25T23:59:59.000Z

428

Delayed neutrons measurement at the MEGAPIE target  

E-Print Network [OSTI]

In the framework of the Neutronic and Nuclear Assessment Task Group of the MEGAPIE experiment we measured the delayed neutron (DN) flux at the top of the target. The measurement was proposed mainly for radioprotection purposes since the DN flux at the top of the target has been estimated to be of the same order of magnitude as the prompt neutron flux. Given the strong model-dependence of DN predictions, the measurement of DN contribution to the total neutron activity at the top of the target was thus desired. Moreover, this measurement is complementary to the DN experiments performed at PNPI (Gatchina) on solid lead and bismuth targets. The DN measurement at MEGAPIE was performed during the start-up phase of the target. In this paper we present a detailed description of the experimental setup and some preliminary results on decay spectra.

Panebianco, Stefano; Dore, Diane; Ledoux, Xavier; Letourneau, Alain; Prevost, Aurelien; Ridikas, Danas

2007-01-01T23:59:59.000Z

429

The Jefferson Lab Frozen Spin Target  

SciTech Connect (OSTI)

A frozen spin polarized target, constructed at Jefferson Lab for use inside a large acceptance spectrometer, is described. The target has been utilized for photoproduction measurements with polarized tagged photons of both longitudinal and circular polarization. Protons in TEMPO-doped butanol were dynamically polarized to approximately 90% outside the spectrometer at 5 T and 200-300 mK. Photoproduction data were acquired with the target inside the spectrometer at a frozen-spin temperature of approximately 30 mK with the polarization maintained by a thin, superconducting coil installed inside the target cryostat. A 0.56 T solenoid was used for longitudinal target polarization and a 0.50 T dipole for transverse polarization. Spin relaxation times as high as 4000 hours were observed. We also report polarization results for deuterated propanediol doped with the trityl radical OX063.

Christopher Keith, James Brock, Christopher Carlin, Sara Comer, David Kashy, Josephine McAndrew, David Meekins, Eugene Pasyuk, Joshua Pierce, Mikell Seely

2012-08-01T23:59:59.000Z

430

On covering planar graphs with a fixed number of balls Victor Chepoi, Bertrand Estellon, Yann Vax`es  

E-Print Network [OSTI]

On covering planar graphs with a fixed number of balls Victor Chepoi, Bertrand Estellon, Yann Vax`es´editerran´ee, F-13288 Marseille Cedex 9, France, {chepoi,estellon,vaxes}@lif.univ-mrs.fr Abstract. In this note

Chepoi, Victor

431

Cooperative target convergence using multiple agents  

SciTech Connect (OSTI)

This work considers the problem of causing multiple (100`s) autonomous mobile robots to converge to a target and provides a follow-the-leader approach to the problem. Each robot has only a limited-range sensor for sending the target and also larger but also limited-range robot-to-robot communication capability. Because of the small amount of information available to the robots, a practical approach to improve convergence to the target is to have a robot follow the robot with the best quality of information. Specifically, each robot emits a signal that informs in-range robots what its status is. A robot has a status value of 0 if it is itself in range of the target. A robot has a status of 1 if it is not in range of the target but is in communication range of a robot that is in range of the target. A robot has a status of 2 if it is not in range of the target but is within range of another robot that has status 1, and so on. Of all the mobile robots that any given robot is in range of, it follows the one with the best status. The emergent behavior is the ant-like trails of robots following each other toward the target. If the robot is not in range of another robot that is either in range of the target or following another robot, the robot will assign-1 to its quality-of-information, and will execute an exhaustive search. The exhaustive search will continue until it encounters either the target or another robot with a nonnegative quality-of-information. The quality of information approach was extended to the case where each robot only has two-bit signals informing it of distance to in-range robots.

Kwok, K.S.; Driessen, B.J.

1997-10-01T23:59:59.000Z

432

Serum proteins, indirect fluorescent antibody titers and complement fixing antibody titers in dexamethasone exacerbated anaplasmosis carrier calves  

E-Print Network [OSTI]

SERUM PROTEINS, INDIRECT FLUORESCENT ANTIBODY TITERS AND COMPLEMENT FIXING ANTIBODY TITERS IN DEXAMETHASONE EXACERBATED ANAPLASMOSIS CARRIER CALVES A Thesis by Lloran Wesley Johnson Submitted to the Graduate College of Texas A%M University... in partial fulfillment of the requirement for the degree of MAS TER 0 F SC I ENC E August 1979 Major Subject: Veterinary Microbiology SERUM PROTEINS, INDIRECT FLUORESCENT ANTIBODY TITERS AND COMPLEMENT FIXING ANTIBODY TITERS IN DEXAMETHASONE EXACERBATED...

Johnson, Lloran Wesley

2012-06-07T23:59:59.000Z

433

Modeling water uptake by a root system growing in a fixed soil volume  

E-Print Network [OSTI]

The water uptake by roots of plants is examined for an ideal situation, with an approximation that resembles plants growing in pots, meaning that the total soil volume is fixed. We propose a coupled water uptake-root growth model. A one-dimensional model for water flux and water uptake by a root system growing uniformly distributed in the soil is presented, and the Van Genuchten model for the transport of water in soil is used. The governing equations are represented by a moving boundary model for which the root length, as a function of time, is prescribed. The solution of the model is obtained by front-fixing and finite element methods. Model predictions for water uptake by a same plant growing in loam, silt and clay soils are obtained and compared. A sensitivity analysis to determine relative effects on water uptake when system parameters are changed is also presented and shows that the model and numerical method proposed are more sensitive to the root growth rate than to the rest of the parameters. This se...

Albrieu, J L Blengino; Tarzia, D A

2015-01-01T23:59:59.000Z

434

Quantum-corrected drift-diffusion models: Solution fixed point map and finite element approximation  

SciTech Connect (OSTI)

This article deals with the analysis of the functional iteration, denoted Generalized Gummel Map (GGM), proposed in [C. de Falco, A.L. Lacaita, E. Gatti, R. Sacco, Quantum-Corrected Drift-Diffusion Models for Transport in Semiconductor Devices, J. Comp. Phys. 204 (2) (2005) 533-561] for the decoupled solution of the Quantum Drift-Diffusion (QDD) model. The solution of the problem is characterized as being a fixed point of the GGM, which permits the establishment of a close link between the theoretical existence analysis and the implementation of a numerical tool, which was lacking in previous non-constructive proofs [N.B. Abdallah, A. Unterreiter, On the stationary quantum drift-diffusion model, Z. Angew. Math. Phys. 49 (1998) 251-275, R. Pinnau, A. Unterreiter, The stationary current-voltage characteristics of the quantum drift-diffusion model, SIAM J. Numer. Anal. 37 (1) (1999) 211-245]. The finite element approximation of the GGM is illustrated, and the main properties of the numerical fixed point map (discrete maximum principle and order of convergence) are discussed. Numerical results on realistic nanoscale devices are included to support the theoretical conclusions.

Falco, Carlo de [School of Mathematical Sciences, Dublin City University, Glasnevin, Dublin 9 (Ireland); Jerome, Joseph W. [Department of Mathematics, Northwestern University, 2033 Sheridan Road, Evanston, IL 60208-2730 (United States); Sacco, Riccardo [Dipartimento di Matematica 'F.Brioschi', Politecnico di Milano, via Bonardi 9, 20133 Milano (Italy)], E-mail: riccardo.sacco@polimi.it

2009-03-20T23:59:59.000Z

435

Evidence of cost growth under cost-plus and fixed-price contracting  

SciTech Connect (OSTI)

As defined by the US Department of Energy (DOE), privatization refers to a shifting of responsibilities for the completion of projects from a cost-plus Management and Operations (M and O) contract, to incentive-based contracts with the private sector. DOE`s new vision is to arrange cleanup work around incentives-based contracts, which are won via competitive bidding. Competition in awarding cleanup contracts can make use of market incentives to lower project costs and reduce slippage time. Fixed-price contracts encourage contractors to minimize schedule delays and cost overruns once the scope of a project has been negotiated. Conversely, cost-plus contracting offers weak incentives for contractors to select cost-minimizing production and management approaches. Because privatization explicitly allocates more risk to the contractor, it forces the government to better define its goals and methods. This study summarizes actual cost experiences with government contracts performed under cost-plus and fixed-price incentive structures at all levels of government. The first section provides some background on the problem of making contractor activity more cost-efficient. Following this are sections on the measurement of performance and the costs of projects, limitations on measurement, and findings of similar studies. The study concludes with appendices discussing the details of the performance measurement methodology and the project data sets used in the study.

Scott, M.J.; Paananaen, O.H.; Redgate, T.E.; Ulibarri, C.A.; Jaksch, J.A.

1998-09-01T23:59:59.000Z

436

Test plan for evaluating the operational performance of the prototype nested, fixed-depth fluidic sampler  

SciTech Connect (OSTI)

The PHMC will provide Low Activity Wastes (LAW) tank wastes for final treatment by a privatization contractor from two double-shell feed tanks, 241-AP-102 and 241-AP-104. Concerns about the inability of the baseline ''grab'' sampling to provide large volume samples within time constraints has led to the development of a nested, fixed-depth sampling system. This sampling system will provide large volume, representative samples without the environmental, radiation exposure, and sample volume impacts of the current base-line ''grab'' sampling method. A plan has been developed for the cold testing of this nested, fixed-depth sampling system with simulant materials. The sampling system will fill the 500-ml bottles and provide inner packaging to interface with the Hanford Sites cask shipping systems (PAS-1 and/or ''safe-send''). The sampling system will provide a waste stream that will be used for on-line, real-time measurements with an at-tank analysis system. The cold tests evaluate the performance and ability to provide samples that are representative of the tanks' content within a 95 percent confidence interval, to sample while mixing pumps are operating, to provide large sample volumes (1-15 liters) within a short time interval, to sample supernatant wastes with over 25 wt% solids content, to recover from precipitation- and settling-based plugging, and the potential to operate over the 20-year expected time span of the privatization contract.

REICH, F.R.

1999-05-18T23:59:59.000Z

437

M.S. Physics Program M.S. in Physics  

E-Print Network [OSTI]

M.S. Physics Program M.S. in Physics Department(s) Physics and Astronomy College Sciences 1 for later reference. 1. understanding of a variety of fields of physics at the graduate level 2. performance of a physics research project suitable for a masters thesis 3. ability to communicate scientific research

Hemmers, Oliver

438

Micro-fabrication Techniques for Target Components  

SciTech Connect (OSTI)

Micro-fabrication techniques, derived from the semi-conductor industry, can be used to make a variety of useful mechanical components for targets. A selection of these components including supporting cooling arms for prototype cryogenic inertial confinement fusion targets, stepped and graded density targets for materials dynamics experiments are described. Micro-fabrication enables cost-effective, simultaneous fabrication of multiple high-precision components with complex geometries. Micro-fabrication techniques such as thin-film deposition, photo-lithographic patterning and etch processes normally used in the semi-conductor manufacture industry, can be exploited to make useful mechanical target components. Micro-fabrication processes have in recent years been used to create a number of micro-electro-mechanical systems (MEMS) components such as pressure sensors, accelerometers, ink jet printer heads, microfluidics platforms and the like. These techniques consist primarily of deposition of thin films of material, photo-lithographic patterning and etching processes performed sequentially to produce three dimensional structures using essentially planar processes. While the planar technology can be limiting in terms of the possible geometries of the final product, advantages of using these techniques include the ability to make multiple complex structures simultaneously and cost-effectively. Target components fabricated using these techniques include the supporting cooling arms for cryogenic prototype fusion ignition targets, stepped targets for equation-of-state experiments, and graded density reservoirs for material strength experiments.

Miles, R; Hamilton, J; Crawford, J; Ratti, S; Trevino, J; Graff, T; Stockton, C; Harvey, C

2008-06-10T23:59:59.000Z

439

Top Physics at ATLAS  

E-Print Network [OSTI]

The Large Hadron Collider LHC is a top quark factory: due to its high design luminosity, LHC will produce about 200 millions of top quarks per year of operation. The large amount of data will allow to study with great precision the properties of the top quark, most notably cross-section, mass and spin. The Top Physics Working Group has been set up at the ATLAS experiment, to evaluate the precision reach of physics measurements in the top sector, and to study the systematic effects of the ATLAS detector on such measurements. This reports give an overview of the main activities of the ATLAS Top Physics Working Group in 2004.

Marcello Barisonzi

2005-08-02T23:59:59.000Z

440

Physics | Department of Energy  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest RegionatSearch Welcome to theNews & Blog »Physics Physics PrintPhysics

Note: This page contains sample records for the topic "fixed target physics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Top Physics at CDF  

SciTech Connect (OSTI)

We present the recent results of top-quark physics using up to 6 fb{sup -1} of p{bar p} collisions at a center of mass energy of {radical}s = 1.96 TeV analyzed by the CDF collaboration. Thanks to this large data sample, precision top quark measurements are now a reality at the Tevatron. Further, several new physics signals could appear in this large dataset. We will present the latest measurements of top quark intrinsic properties as well as direct searches for new physics in the top sector.

Moon, Chang-Seong

2011-06-01T23:59:59.000Z

442

Volumetric-modulated arc therapy vs conventional fixed-field intensity-modulated radiotherapy in a whole-ventricular irradiation: A planning comparison study  

SciTech Connect (OSTI)

This study evaluated the dosimetric difference between volumetric-modulated arc therapy (VMAT) and conventional fixed-field intensity-modulated radiotherapy (cIMRT) in whole-ventricular irradiation. Computed tomography simulation data for 13 patients were acquired to create plans for VMAT and cIMRT. In both plans, the same median dose (100% = 24 Gy) was prescribed to the planning target volume (PTV), which comprised a tumor bed and whole ventricles. During optimization, doses to the normal brain and body were reduced, provided that the dose constraints of the target coverage were satisfied. The dose-volume indices of the PTV, normal brain, and body as well as monitor units were compared between the 2 techniques by using paired t-tests. The results showed no significant difference in the homogeneity index (0.064 vs 0.065; p = 0.824) of the PTV and conformation number (0.78 vs 0.77; p = 0.065) between the 2 techniques. In the normal brain and body, the dose-volume indices showed no significant difference between the 2 techniques, except for an increase in the volume receiving a low dose in VMAT; the absolute volume of the normal brain and body receiving 1 Gy of radiation significantly increased in VMAT by 1.6% and 8.3%, respectively, compared with that in cIMRT (1044 vs 1028 mL for the normal brain and 3079.2 vs 2823.3 mL for the body; p<0.001). The number of monitor units to deliver a 2.0-Gy fraction was significantly reduced in VMAT compared with that in cIMRT (354 vs 873, respectively; p<0.001). In conclusion, VMAT delivers IMRT to complex target volumes such as whole ventricles with fewer monitor units, while maintaining target coverage and conformal isodose distribution comparable to cIMRT; however, in addition to those characteristics, the fact that the volume of the normal brain and body receiving a low dose would increase in VMAT should be considered.

Sakanaka, Katsuyuki [Department of Radiation Oncology and Image-Applied Therapy, Kyoto University Graduate School of Medicine, Kyoto (Japan); Mizowaki, Takashi, E-mail: mizo@kuhp.kyoto-u.ac.jp [Department of Radiation Oncology and Image-Applied Therapy, Kyoto University Graduate School of Medicine, Kyoto (Japan); Sato, Sayaka; Ogura, Kengo; Hiraoka, Masahiro [Department of Radiation Oncology and Image-Applied Therapy, Kyoto University Graduate School of Medicine, Kyoto (Japan)

2013-07-01T23:59:59.000Z

443

Self-assessing target with automatic feedback  

DOE Patents [OSTI]

A self assessing target with four quadrants and a method of use thereof. Each quadrant containing possible causes for why shots are going into that particular quadrant rather than the center mass of the target. Each possible cause is followed by a solution intended to help the marksman correct the problem causing the marksman to shoot in that particular area. In addition, the self assessing target contains possible causes for general shooting errors and solutions to the causes of the general shooting error. The automatic feedback with instant suggestions and corrections enables the shooter to improve their marksmanship.

Larkin, Stephen W.; Kramer, Robert L.

2004-03-02T23:59:59.000Z

444

Advances in target normal sheath acceleration theory  

SciTech Connect (OSTI)

A theoretical model of the Target Normal Sheath Acceleration (TNSA) process, able to go beyond the limits of available descriptions, is developed. It allows to achieve a more satisfactory interpretation of TNSA. The theory, also supported by two dimensional particle-in-cell simulations, elucidates the role played by the main laser and target parameters. Comparison between model predictions and experimental data related to the target thickness dependence of the maximum ion energy is discussed, showing satisfactory agreement. The model can be used as a simple but effective tool to guide the design of future experiments.

Passoni, M.; Sgattoni, A. [Dipartimento di Energia, Politecnico di Milano, and Sezione di Milano INFN, Milan (Italy)] [Dipartimento di Energia, Politecnico di Milano, and Sezione di Milano INFN, Milan (Italy); Perego, C. [Dipartimento di Fisica, Universitŕ di Milano-Bicocca, Milan (Italy)] [Dipartimento di Fisica, Universitŕ di Milano-Bicocca, Milan (Italy); Batani, D. [Université Bordeaux, CNRS, CEA, CELIA (Centre Lasers Intenses et Applications), UMR 5107, F-33405 Talence (France) [Université Bordeaux, CNRS, CEA, CELIA (Centre Lasers Intenses et Applications), UMR 5107, F-33405 Talence (France); Dipartimento di Energia, Politecnico di Milano, and Sezione di Milano INFN, Milan (Italy)

2013-06-15T23:59:59.000Z

445

ESO Imaging Survey: Finding Targets for VLT  

E-Print Network [OSTI]

Data from the wide-angle, moderately deep ESO Imaging Survey have been used to produce target lists for the first year of the VLT. About 250 candidate clusters of galaxies have been identified from the I-band images covering $\\sim$ 17 square degrees. In addition, using the multicolor data available over an area of 1.3 square degrees over 300 potentially interesting point-sources have been selected. The color-selected targets include low-mass stars/brown dwarfs, white-dwarfs and quasars. Images, object catalogs and derived target lists are available from the world-wide web (http://www.eso.org/eis)

L. N. da Costa

1998-09-16T23:59:59.000Z

446

3.September.2014 Physics 3340  

E-Print Network [OSTI]

3.September.2014 Physics 3340 Principles of Environmental Physics Instructor: Brad de Young Physics and Physical Oceanography Memorial University, bdeyoung@mun.ca Room C-3000 864-8738 The course will focus on basic physical principles of light, heat, energy and sound in the natural environment. We will look

deYoung, Brad

447

Physics 112 Thermodynamics and Statistical Physics Winter 2000 COURSE OUTLINE  

E-Print Network [OSTI]

Physics 112 Thermodynamics and Statistical Physics Winter 2000 COURSE OUTLINE TOPIC READINGS 1 and probability theory can be found in Chapter 16 of Mathematical Methods in the Physical Sciences, by Mary L

California at Santa Cruz, University of

448

PHYSICS WITH AND PHYSICS OF COLLIDING ELECTRON BEAMS  

E-Print Network [OSTI]

contributed so much to the physics of colliding beams, theyto reap so little from the physics with colliding beams.Conference on High-Energy Physics, Vienna" September 1968 (

Pellegrini, Claudio

2008-01-01T23:59:59.000Z

449

PHYSICS & ASTRONOMY GRADUATE STUDENT HANDBOOK DEPARTMENT OF PHYSICS & ASTRONOMY  

E-Print Network [OSTI]

PHYSICS & ASTRONOMY GRADUATE STUDENT HANDBOOK DEPARTMENT OF PHYSICS & ASTRONOMY UNIVERSITY OF UTAH Fall 2012 Version 2012 .................................................................................... 11 3.1. Ph.D. in Physics 12 3.1.1. Astronomy & Astrophysics

Tipple, Brett

450

Center for Beam Physics  

E-Print Network [OSTI]

1997, San Jose, CBP Note-205, LBNL-39944, February 1997.71-259 wurtele@lbl.gov Joined LBNL in 1995 Ph. D. , Physics,collider collaboration) Chap. 8, LBNL- "Free Electron Laser

Chattopadhyay, S.

2010-01-01T23:59:59.000Z

451

Introduction to flavor physics  

E-Print Network [OSTI]

This set of lectures covers the very basics of flavor physics and are aimed to be an entry point to the subject. A lot of problems are provided in the hope of making the manuscript a self study guide.

Yuval Grossman

2010-06-17T23:59:59.000Z

452

B Physics at LHC  

E-Print Network [OSTI]

Three experiments, among the LHC project, are getting ready to explore the b quark flavour sector. While ATLAS and CMS are general purpose experiments, where the study of B mesons is going to proceed in parallel with the Higgs boson and supersymmetry searches, the LHCb experiment is devoted to B physics studies. The key parameters entering the physics analyses and the performances achieved in all the three experiments are presented. Given the large B physics program foreseen in the LHC experiments, the studies reported in this paper have been selected as those with higher likelihood to provide solid and interesting new results on Standard Model validation and New Physics processes search with early data.

A. Sarti

2008-09-02T23:59:59.000Z

453

Physical Protection Program  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

Establishes Department of Energy management objectives, requirements and responsibilities for the physical protection of safeguards and security interests. Cancels DOE 5632.1C. Canceled by DOE O 470.4.

2002-12-23T23:59:59.000Z

454

Physical process Mechanical mechanisms  

E-Print Network [OSTI]

1 Physical process Generation · Mechanical mechanisms F = m·a · Electric/Magnetic mechanisms F ­ Quadrupoles......shear stress fluctuations ­ High order poles...... phys. interpretation difficult Governing

Berlin,Technische Universität

455

Design principle and calculations of a Scheffler fixed focus concentrator for medium temperature applications  

SciTech Connect (OSTI)

Scheffler fixed focus concentrators are successfully used for medium temperature applications in different parts of the world. These concentrators are taken as lateral sections of paraboloids and provide fixed focus away from the path of incident beam radiations throughout the year. The paper presents a complete description about the design principle and construction details of an 8 m{sup 2} surface area Scheffler concentrator. The first part of the paper presents the mathematical calculations to design the reflector parabola curve and reflector elliptical frame with respect to equinox (solar declination = 0) by selecting a specific lateral part of a paraboloid. Crossbar equations and their ellipses, arc lengths and their radii are also calculated to form the required lateral section of the paraboloid. Thereafter, the seasonal parabola equations are calculated for two extreme positions of summer and winter in the northern hemisphere (standing reflectors). The slopes of the parabola equations for equinox (solar declination = 0), summer (solar declination = +23.5) and winter (solar declination = -23.5) for the Scheffler reflector (8 m{sup 2} surface area) are calculated to be 0.17, 0.28, and 0.13 respectively. The y-intercepts of the parabola equations for equinox, summer and winter are calculated as 0, 0.54, and -0.53 respectively. By comparing with the equinox parabola curve, the summer parabola is found to be smaller in size and uses the top part of the parabola curve while the winter parabola is bigger in size and uses the lower part of the parabola curve to give the fixed focus. For this purpose, the reflector assembly is composed of flexible crossbars and a frame to induce the required change of the parabola curves with the changing solar declination. The paper also presents the calculation procedure of seasonal parabola equations for standing reflectors in the southern hemisphere as well as for laying reflectors in the northern and southern hemispheres. Highly reflective aluminium sheets are used on the crossbar profiles to complete the concentrator. The reflector is installed at the required site by setting its axis of rotation at an angle equal to the latitude of the site. For daily tracking, these concentrators rotate along an axis parallel to the polar axis of the earth at an angular velocity of one revolution per day with the help of simpler and cheaper self-tracking devices. For seasonal tracking, the reflector rotates at half the solar declination angle with the help of a telescopic clamp mechanism. The design procedure is simple, flexible and does not need any special computational setup, thus offering the prospect of potential application in domestic as well as industrial configurations. (author)

Munir, A.; Hensel, O. [Department of Agricultural Engineering,University of Kassel, Nordbahnhofstr. 1 a 37213 Witzenhausen (Germany); Scheffler, W. [Solar Bruecke G.v.Werdenbergstr.6 D-89344 Aislingen (Germany)

2010-08-15T23:59:59.000Z

456

Gravitation Physics at BGPL  

E-Print Network [OSTI]

We report progress on a program of gravitational physics experiments using cryogenic torsion pendula undergoing large-amplitude torsion oscillation. This program includes tests of the gravitational inverse square law and of the weak equivalence principle. Here we describe our ongoing search for inverse-square-law violation at a strength down to $10^{-5}$ of standard gravity. The low-vibration environment provided by the Battelle Gravitation Physics Laboratory (BGPL) is uniquely suited to this study.

P. E. Boynton; R. M. Bonicalzi; A. M. Kalet; A. M. Kleczewski; J. K. Lingwood; K. J. McKenney; M. W. Moore; J. H. Steffen; E. C. Berg; W. D. Cross; R. D. Newman; R. E. Gephart

2006-09-21T23:59:59.000Z

457

Electroweak physics and physics beyond the Standard Model  

E-Print Network [OSTI]

We summarize the recent results on electroweak physics and physics beyond the Standard Model that have been presented at the XIV International Workshop on Deep Inelastic Scattering 2006.

L. Bellagamba; E. Sauvan; H. Spiesberger

2006-07-25T23:59:59.000Z

458

Webinar: Targeted Algal Biofuels and Bioproducts FOA  

Broader source: Energy.gov [DOE]

The Energy Department’s Bioenergy Technologies Office will present a live informational webcast on the Targeted Algal Biomass and Bioproducts Funding Opportunity (DE-FOA-0001162) on October 8, 2014...

459

Beam Pulse Structure and Targets Roger Bennett  

E-Print Network [OSTI]

in a target. The shock wave travels through matter at the speed of sound, where E is Young's modulus of elasticity and is the density. E s = #12;The time taken for the wave to travel from the outer surface

McDonald, Kirk

460

EMC effect: asymptotic freedom with nuclear targets  

SciTech Connect (OSTI)

General features of the EMC effect are discussed within the framework of quantum chromodynamics as expressed via the operator product expansion and asymptotic freedom. These techniques are reviewed with emphasis on the target dependence. 22 references.

West, G.B.

1984-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "fixed target physics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Statistical Modeling of Single Target Cell Encapsulation  

E-Print Network [OSTI]

High throughput drop-on-demand systems for separation and encapsulation of individual target cells from heterogeneous mixtures of multiple cell types is an emerging method in biotechnology that has broad applications in ...

Moon, SangJun

462

Nanotechnology-mediated targeting of tumor angiogenesis  

E-Print Network [OSTI]

Abstract Angiogenesis is disregulated in many diseased states, most notably in cancer. An emerging strategy for the development of therapies targeting tumor-associated angiogenesis is to harness the potential of nanotechnology ...

Banerjee, Deboshri

463

Analysis of Climate Policy Targets under Uncertainty  

E-Print Network [OSTI]

Although policymaking in response to the climate change is essentially a challenge of risk management, most studies of the relation of emissions targets to desired climate outcomes are either deterministic or subject to a ...

Jacoby, Henry D.

464

Targeting cancer metabolism: a therapeutic window opens  

E-Print Network [OSTI]

Genetic events in cancer activate signalling pathways that alter cell metabolism. Clinical evidence has linked cell metabolism with cancer outcomes. Together, these observations have raised interest in targeting metabolic ...

Vander Heiden, Matthew G.

465

SNS Target R&D Presented by  

E-Print Network [OSTI]

since been resolved ­ QA program would have to be very stringent for long lifetime Second target station implemented #12;11 Managed by UT-Battelle for the U.S. Department of Energy Spallation Neutron Source

McDonald, Kirk

466

MAJOR DETECOTRS IN ELEMENTARY PARTICLE PHYSICS - May 1985 Suppl.  

SciTech Connect (OSTI)

This report is the second edition of a loose-leaf compendium of the properties and performance characteristics of the major detectors of elementary particle physics. This introduces the second edition of the LBL-91 Supplement 'Major Detectors in Elementary Particle Physics.' For some detectors the update merely documents minor modifications or provides additional references. Others have undergone major rebuilding or have been augmented with new subsystems. The new LEP, SLC, TRISTAN, BEPC, and FNAL detectors have had their designs fixed and are now under construction. Some detectors have completed their programs since the last edition and so are omitted. The use of colored loose-leaf paper should allow users to maintain a historical record of each detector. We again thank those physicists working with each detector who took the time to summarize its properties and supply us with the appropriate drawings.

Gidal, G.; Armstrong, B.; Rittenberg, A.

1985-05-01T23:59:59.000Z

467

RMC - A Monte Carlo code for reactor physics analysis  

SciTech Connect (OSTI)

A new Monte Carlo neutron transport code RMC has been being developed by Department of Engineering Physics, Tsinghua University, Beijing as a tool for reactor physics analysis on high-performance computing platforms. To meet the requirements of reactor analysis, RMC now has such functions as criticality calculation, fixed-source calculation, burnup calculation and kinetics simulations. Some techniques for geometry treatment, new burnup algorithm, source convergence acceleration, massive tally and parallel calculation, and temperature dependent cross sections processing are researched and implemented in RMC to improve the efficiency. Validation results of criticality calculation, burnup calculation, source convergence acceleration, tallies performance and parallel performance shown in this paper prove the capabilities of RMC in dealing with reactor analysis problems with good performances. (authors)

Wang, K.; Li, Z.; She, D.; Liang, J.; Xu, Q.; Qiu, A.; Yu, J.; Sun, J.; Fan, X.; Yu, G. [Department of Engineering Physics, Tsinghua University, Liuqing Building, Beijing, 100084 (China)

2013-07-01T23:59:59.000Z

468

Fixed-Speed and Variable-Slip Wind Turbines Providing Spinning Reserves to the Grid: Preprint  

SciTech Connect (OSTI)

As the level of wind penetration increases, wind turbine technology must move from merely generating power from wind to taking a role in supporting the bulk power system. Wind turbines should have the capability to provide inertial response and primary frequency (governor) response so they can support the frequency stability of the grid. To provide governor response, wind turbines should be able to generate less power than the available wind power and hold the rest in reserve, ready to be accessed as needed. This paper explores several ways to control wind turbine output to enable reserve-holding capability. This paper focuses on fixed-speed (also known as Type 1) and variable-slip (also known as Type 2) turbines.

Muljadi, E.; Singh, M.; Gevorgian, V.

2012-11-01T23:59:59.000Z

469

Non-invasive energy meter for fixed and variable flow systems  

DOE Patents [OSTI]

An energy metering method and apparatus for liquid flow systems comprising first and second segments of one or more conduits through which a liquid flows, comprising: attaching a first temperature sensor for connection to an outside of the first conduit segment; attaching a second temperature sensor for connection to an outside of the second conduit segment; via a programmable control unit, receiving data from the sensors and calculating energy data therefrom; and communicating energy data from the meter; whereby the method and apparatus operate without need to temporarily disconnect or alter the first or second conduit segments. The invention operates with both variable and fixed flow systems, and is especially useful for both active and passive solar energy systems.

Menicucci, David F.; Black, Billy D.

2005-11-01T23:59:59.000Z

470

Control systems field equipment forensics : what happened to my PLC and how do I fix it?  

SciTech Connect (OSTI)

The outline for the presentation is: (1) Advance preparation - (a) Think about attacks before they happen, (b) Configuration Management, (c) Backups, (d) Off-site storage, (e) Design and build for resiliency, (f) Training operators to detect attack; (2) Detection - (a) How do I know I've been attacked, (b) The front-line detection system - operators; (3) Triage - (a) Working through the attack, (b) Law enforcement or business continuity, (c) Deciding what to fix first; (4) Field Equipment Forensics - (a) Engineering Workstation, (b) Projects/Configurations/Programs; and (5) Conclusion and Discussion. Red teaming works for supply chain - Finds the worst attacks across multiple dimensions, Shows where to best expend resources to reduce risk, and Provides positive control of potentially negative activities.

Parks, Raymond C.

2010-10-01T23:59:59.000Z

471

Fixed-bed gasification research using US coals. Volume 2. Gasification of Jetson bituminous coal  

SciTech Connect (OSTI)

A single-staged, fixed-bed Wellman-Galusha gasifier coupled with a hot, raw gas combustion system and scrubber has been used to gasify numerous coals from throughout the United States. The gasification test program is organized as a cooperative effort by private industrial participants and governmental agencies. The consortium of participants is organized under the Mining and Industrial Fuel Gas (MIFGa) Group. This report describes the gasification testing of Jetson bituminous coal. This Western Kentucky coal was gasified during an initial 8-day and subsequent 5-day period. Material flows and compositions are reported along with material and energy balances. Operational experience is also described. 4 refs., 24 figs., 17 tabs.

Thimsen, D.; Maurer, R.E.; Pooler, A.R.; Pui, D.; Liu, B.; Kittelson, D.

1985-03-31T23:59:59.000Z

472

Study of liquid retention in fixed-bed reactors with upward flow of gas and liquid  

SciTech Connect (OSTI)

A literature survey of the measurement techniques for the determination of liquid retention in cocurrent upward gas and liquid flow in fixed-bed reactors is presented. A number of these techniques were used in this work in columns of different diameters (Dc = 0.05 m, 0.10 m, and 0.15 m). Porous alumina particles of two different diameters (dp = 0.002 m and 0.0028 m) with both nonfoaming (water, cyclohexane, heptane, and propanol) and foaming liquids (kerosene, LCO, and diesel fuel) have been investigated. The gas used was either air or N[sub 2]. The methods investigated include volumetry, gravimetry, gammametry, and determination of residence-time distribution by tracer technique. A simple correlation for the prediction of total gas and liquid retention for bubble and pulsed flow is proposed and verified.

Yang, X.L.; Euzen, J.P. (Inst. Francais du Petrole, Vernaison (France)); Wild, G. (Lab. des Sciences du Genie Chimique, Nancy (France))

1993-01-01T23:59:59.000Z

473

Measurement of Charged Pion Production Yields off the NuMI Target  

E-Print Network [OSTI]

The fixed-target MIPP experiment, Fermilab E907, was designed to measure the production of hadrons from the collisions of hadrons of momenta ranging from 5 to 120 GeV/c on a variety of nuclei. These data will generally improve the simulation of particle detectors and predictions of particle beam fluxes at accelerators. The spectrometer momentum resolution is between 3 and 4%, and particle identification is performed for particles ranging between 0.3 and 80 GeV/c using $dE/dx$, time-of-flight and Cherenkov radiation measurements. MIPP collected $1.42 \\times10^6$ events of 120 GeV Main Injector protons striking a target used in the NuMI facility at Fermilab. The data have been analyzed and we present here charged pion yields per proton-on-target determined in bins of longitudinal and transverse momentum between 0.5 and 80 GeV/c, with combined statistical and systematic relative uncertainties between 5 and 10%.

J. M. Paley; M. D. Messier; R. Raja; U. Akgun; D. M. Asner; G. Aydin; W. Baker; P. D. Barnes, Jr.; T. Bergfeld; L. Beverly; V. Bhatnagar; B. Choudhary; E. C. Dukes; F. Duru; G. J. Feldman; A. Godley; N. Graf; J. Gronberg; E. Gulmez; Y. O. Gunaydin; H. R. Gustafson; E. P. Hartouni; P. Hanlet; M. Heffner; D. M. Kaplan; O. Kamaev; J. Klay; A. Kumar; D. J. Lange; A. Lebedev; J. Ling; M. J. Longo; L. C. Lu; C. Materniak; S. Mahajan; H. Meyer; D. E. Miller; S. R. Mishra; K. Nelson; T. Nigmanov; A. Norman; Y. Onel; A. Penzo; R. J. Peterson; D. Rajaram; D. Ratnikov; C. Rosenfeld; H. Rubin; S. Seun; A. Singh; N. Solomey; R. A. Soltz; Y. Torun; K. Wilson; D. M. Wright; Q. K. Wu

2014-04-23T23:59:59.000Z

474

Validation of Geant4 Hadronic Generators versus Thin Target Data  

SciTech Connect (OSTI)

The GEANT4 toolkit is widely used for simulation of high energy physics (HEP) experiments, in particular, those at the Large Hadron Collider (LHC). The requirements of robustness, stability and quality of simulation for the LHC are demanding. This requires an accurate description of hadronic interactions for a wide range of targets over a large energy range, from stopped particle reactions to low energy nuclear interactions to interactions at the TeV energy scale. This is achieved within the Geant4 toolkit by combining a number of models, each of which are valid within a certain energy domain. Comparison of these models to thin target data over a large energy range indicates the strengths and weaknesses of the model descriptions and the energy range over which each model is valid. Software has been developed to handle the large number of validation tests required to provide the feedback needed to improve the models. An automated process for carrying out the validation and storing/displaying the results is being developed and will be discussed.

Banerjee, S.; /Fermilab; Folger, G.; /CERN; Ivanchenko, A.; /CERN /CENBG, Gradignan; Ivanchenko, V.N.; /CERN /NeurOK, Moscow /Metz U.; Kossov, M.; /CERN; Quesada, J.M.; /Seville U.; Schalicke, A.; /DESY, Zeuthen; Uzhinsky, V.; /CERN; Wenzel, H.; /Fermilab; Wright, D.H.; /SLAC; Yarba, J.; /Fermilab

2012-04-19T23:59:59.000Z

475

Target Diagnostic Control System Implementation for the National Ignition Facility  

SciTech Connect (OSTI)

The extreme physics of targets shocked by NIF's 192-beam laser are observed by a diverse suite of diagnostics. Many diagnostics are being developed by collaborators at other sites, but ad hoc controls could lead to unreliable and costly operations. A Diagnostic Control System (DCS) framework for both hardware and software facilitates development and eases integration. Each complex diagnostic typically uses an ensemble of electronic instruments attached to sensors, digitizers, cameras, and other devices. In the DCS architecture each instrument is interfaced to a low-cost Windows XP processor and Java application. Each instrument is aggregated with others as needed in the supervisory system to form an integrated diagnostic. The Java framework provides data management, control services and operator GUI generation. DCS instruments are reusable by replication with reconfiguration for specific diagnostics in XML. Advantages include minimal application code, easy testing, and high reliability. Collaborators save costs by assembling diagnostics with existing DCS instruments. This talk discusses target diagnostic instrumentation used on NIF and presents the DCS architecture and framework.

Shelton, R T; Kamperschroer, J H; Lagin, L J; Nelson, J R; O'Brien, D W

2010-05-12T23:59:59.000Z

476

Turing-equivalent automata using a fixed-size quantum memory  

E-Print Network [OSTI]

In this paper, we introduce a new public quantum interactive proof system and the first quantum alternating Turing machine: qAM proof system and qATM, respectively. Both are obtained from their classical counterparts (Arthur-Merlin proof system and alternating Turing machine, respectively,) by augmenting them with a fixed-size quantum register. We focus on space-bounded computation, and obtain the following surprising results: Both of them with constant-space are Turing-equivalent. More specifically, we show that for any Turing-recognizable language, there exists a constant-space weak-qAM system, (the nonmembers do not need to be rejected with high probability), and we show that any Turing-recognizable language can be recognized by a constant-space qATM even with one-way input head. For strong proof systems, where the nonmembers must be rejected with high probability, we show that the known space-bounded classical private protocols can also be simulated by our public qAM system with the same space bound. Besides, we introduce a strong version of qATM: The qATM that must halt in every computation path. Then, we show that strong qATMs (similar to private ATMs) can simulate deterministic space with exponentially less space. This leads to shifting the deterministic space hierarchy exactly by one-level. The method behind the main results is a new public protocol cleverly using its fixed-size quantum register. Interestingly, the quantum part of this public protocol cannot be simulated by any space-bounded classical protocol in some cases.

Abuzer Yakaryilmaz

2012-05-24T23:59:59.000Z

477

Fixed-bed gasification research using US coals. Volume 1. Program and facility description  

SciTech Connect (OSTI)

The United States Department of Interior, Bureau of Mines, Twin Cities Research Center, Minneapolis, Minnesota is the site of a 6.5 foot diameter Wellman-Galusha gasifier, installed in 1977-1978. This gasifier, combustor/incinerator, and flue gas scrubber system in the past had been operated jointly by Bureau of Mines personnel, personnel from member companies of the Mining and Industrial Fuel Gas Group, and United States Department of Energy personnel-consultants. Numerous tests using a variety of coals have to date been performed. In May of 1982, Black, Sivalls and Bryson, Incorporated (BS and B) was awarded the contract to plan, execute, and report gasification test performance data from this small industrial fixed-bed gasification test facility. BS and B is responsible for program administration, test planning, test execution, and all documentation of program activities and test reports. The University of Minnesota, Particle Technology Laboratory (UMPTL) is subcontractor to BS and B to monitor process parameters, and provide analysis for material inputs and outputs. This report is the initial volume in a series of reports describing the fixed-bed gasification of US coals at the Bureau of Mines, Twin Cities Research Center. A history of the program is given in Section 1 and a thorough description of the facility in Section 2. The operation of the facility is described in Section 3. Monitoring systems and procedures are described in Sections 4 and 5. Data reduction tools are outlined in Section 6. There is no executive summary or conclusions as this volume serves only to describe the research program. Subsequent volumes will detail each gasification test and other pertinent results of the gasification program. 32 references, 23 figures, 15 tables.

Thimsen, D.; Maurer, R.E.; Poole, A.R.; Pui, D.; Liu, B.; Kittleson, D.

1984-10-01T23:59:59.000Z

478

Target design optimization for an electron accelerator driven subcritical facility with circular and square beam profiles.  

SciTech Connect (OSTI)

A subcritical facility driven by an electron accelerator is planned at the Kharkov Institute of Physics and Technology (KIPT) in Ukraine for medical isotope production, materials research, training, and education. The conceptual design of the facility is being pursued through collaborations between ANL and KIPT. As part of the design effort, the high-fidelity analyses of various target options are performed with formulations to reflect the realistic configuration and the three dimensional geometry of each design. This report summarizes the results of target design optimization studies for electron beams with two different beam profiles. The target design optimization is performed via the sequential neutronic, thermal-hydraulic, and structural analyses for a comprehensive assessment of each configuration. First, a target CAD model is developed with proper emphasis on manufacturability to provide a basis for separate but consistent models for subsequent neutronic, thermal-hydraulic, and structural analyses. The optimizations are pursued for maximizing the neutron yield, streamlining the flow field to avoid hotspots, and minimizing the thermal stresses to increase the durability. In addition to general geometric modifications, the inlet/outlet channel configurations, target plate partitioning schemes, flow manipulations and rates, electron beam diameter/width options, and cladding material choices are included in the design optimizations. The electron beam interactions with the target assembly and the neutronic response of the subcritical facility are evaluated using the MCNPX code. the results for the electron beam energy deposition, neutron generation, and utilization in the subcritical pile are then used to characterize the axisymmetric heat generation profiles in the target assembly with explicit simulations of the beam tube, the coolant, the clad, and the target materials. Both tungsten and uranium are considered as target materials. Neutron spectra from tungsten and uranium are very similar allowing the use of either material in the subcritical assembly without changing its characteristics. However, the uranium target has a higher neutron yield, which increases the neutron flux of the subcritical assembly. Based on the considered dimensions and heat generation profiles, the commercial CFD software Star-CD is used for the thermal-hydraulic analysis of each target design to satisfy a set of thermal criteria, the most limiting of which being to maintain the water temperature 50 below the boiling point. It is found that the turbulence in the inlet channels dissipates quickly in narrow gaps between the target plates and, as a result, the heat transfer is limited by the laminar flow conditions. On average, 3-D CFD analyses of target assemblies agree well with 1-D calculations using RELAP (performed by KIPT). However, the recirculation and stagnation zones predicted with the CFD models prove the importance of a 3-D analysis to avoid the resulting hotspots. The calculated temperatures are subsequently used for the structural analysis of each target configuration to satisfy the other engineering design requirements. The thermo-structural calculations are performed mostly with NASTRAN and the results occasionally compared with the results from MARC. Both, NASTRAN and MARC are commercially available structural-mechanics analysis software. Although, a significant thermal gradient forms in target elements along the beam direction, the high thermal stresses are generally observed peripherally around the edge of thin target disks/plates. Due to its high thermal conductivity, temperatures and thermal stresses in tungsten target are estimated to be significantly lower than in uranium target. The deformations of the target disks/plates are found to be insignificant, which eliminate concerns for flow blockages in narrow coolant channels. Consistent with the specifications of the KIPT accelerator to be used in this facility, the electron beam power is 100-kW with electron energy in the range of 100 to 200 MeV. As expected, the 100 MeV el

Gohar, M. Y. A; Sofu, T.; Zhong, Z.; Belch, H.; Naberezhnev, D.; Nuclear Engineering Division

2008-10-30T23:59:59.000Z

479

Physics & Astronomy BSc (Single Honours Degrees)  

E-Print Network [OSTI]

138 Physics & Astronomy BSc (Single Honours Degrees) Astrophysics Physics MPhys (Single Honours Degrees) Astrophysics Physics Theoretical Physics BSc (Joint Honours Degrees) Physics and one of: Computer Science Logic and Philosophy of Science Mathematics MPhys (Joint Honours Degree) Theoretical Physics

Brierley, Andrew

480

Creation of mixed beam from alloy target and couple of pure targets with laser  

SciTech Connect (OSTI)

To create mixed species ion beam with laser pulses, we investigated charge state distributions of plasma formed from both Al-Fe alloy targets and pure Al and Fe targets placed close together. With two targets, we observed that the two kinds of atoms were mixed when the interval of two laser pulses was large enough (40 ?s). On the other hand, when the interval was 0.0 ?s, we observed fewer Fe ions and they did not mix well with the Al ions. The two species were mixed well in the plasma from the alloy target. Furthermore, we observed that specific charge states of Fe ions increased. From the results, it was determined that we can use two pure targets to mix two species whose difference of the drift velocity is large. On the other hand, we must use an alloy target when the drift velocities of the species are close.

Ikeda, Shunsuke, E-mail: shunsuke.ikeda@riken.jp; Sekine, Megumi [Tokyo Institute of Technology, Yokohama, Kanagawa (Japan) [Tokyo Institute of Technology, Yokohama, Kanagawa (Japan); Riken, Wako, Saitama (Japan); Romanelli, Mark [Cornell University, Ithaca, New York 14850 (United States)] [Cornell University, Ithaca, New York 14850 (United States); Cinquegrani, David [University of Michigan, Ann Arbor, Michigan 48109 (United States)] [University of Michigan, Ann Arbor, Michigan 48109 (United States); Kumaki, Masafumi [Waseda University, Shinjuku, Tokyo (Japan)] [Waseda University, Shinjuku, Tokyo (Japan); Fuwa, Yasuhiro [Kyoto University, Uji, Kyoto (Japan)] [Kyoto University, Uji, Kyoto (Japan); Munemoto, Naoya; Horioka, Kazuhiko [Tokyo Institute of Technology, Yokohama, Kanagawa (Japan)] [Tokyo Institute of Technology, Yokohama, Kanagawa (Japan); Kanesue, Takeshi; Okamura, Masahiro [Brookhaven National Laboratory, Upton, New York 11973 (United States)] [Brookhaven National Laboratory, Upton, New York 11973 (United States); Jin, Qianyu [Institute of Modern Physics, Lanzhou, Gansu (China)] [Institute of Modern Physics, Lanzhou, Gansu (China)

2014-02-15T23:59:59.000Z

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481

Set theory and physics  

SciTech Connect (OSTI)

Inasmuch as physical theories are formalizable, set theory provides a framework for theoretical physics. Four speculations about the relevance of set theoretical modeling for physics are presented: the role of transcendental set theory (i) in chaos theory, (ii) for paradoxical decompositions of solid three-dimensional objects, (iii) in the theory of effective computability (Church-Turing thesis) related to the possible {open_quotes}solution of supertasks,{close_quotes} and (iv) for weak solutions. Several approaches to set theory and their advantages and disadvantages for physical applications are discussed: Cantorian {open_quotes}naive{close_quotes} (i.e., nonaxiomatic) set theory, contructivism, and operationalism. In the author`s opinion, an attitude, of {open_quotes}suspended attention{close_quotes} (a term borrowed from psychoanalysis) seems most promising for progress. Physical and set theoretical entities must be operationalized wherever possible. At the same time, physicists should be open to {open_quotes}bizarre{close_quotes} or {open_quotes}mindboggling{close_quotes} new formalisms, which need not be operationalizable or testable at the time of their creation, but which may successfully lead to novel fields of phenomenology and technology.

Svozil, K. [Univ. of Technology, Vienna (Austria)

1995-11-01T23:59:59.000Z

482

Physical Earth Science Is Physical Earth Science right for me?  

E-Print Network [OSTI]

Physical Earth Science Is Physical Earth Science right for me? If you are interested in learning a Physical Earth Science degree. The skills you will gain are wide-ranging and will provide a good basis for employment in almost any sector. Are all Physical Earth Science degrees the same? Universities do not have

Harman, Neal.A.

483

The Department of PhysicsPRESENTS Nuclear Physics & Society  

E-Print Network [OSTI]

The Department of PhysicsPRESENTS Nuclear Physics & Society A free, four-day short course on nuclear physics and public policy for anyone who wants to better understand nuclear power nuclear weapons P.M. Applications of Nuclear Physics on Earth: Nuclear power, weapons, and nuclear medicine. Topics

Gilfoyle, Jerry

484

Review for Physics in Perspective The Philosophy of Physics  

E-Print Network [OSTI]

Review for Physics in Perspective The Philosophy of Physics Roberto Torretti, The Philosophy of Physics. Cambridge: Cambridge University Press, 1999, xvi + 512 pages. US$ ??. ISBN: 0 521 56259 7 (cloth This is an excellent book, by a very distinguished historian and philosopher of physics. Roberto Torretti

Cheng, Eugenia

485

PHYSICS 9005B: MATHEMATICAL METHODS OF PHYSICS JANUARY 2012  

E-Print Network [OSTI]

PHYSICS 9005B: MATHEMATICAL METHODS OF PHYSICS JANUARY 2012 Instructor: S. R. Valluri, P&A 112, 661 background and interest in Mathematics are encouraged to take this course Course Website: http://publish.uwo.ca/~valluri/physics major topics relevant for physics and engineering will be covered. Complex Variables: Analytic

Lennard, William N.

486

Roadmap: Physical Education Physical Education Licensure Bachelor of Science  

E-Print Network [OSTI]

Roadmap: Physical Education ­ Physical Education Licensure ­ Bachelor of Science [EH | Last Updated: 31-May-13/JS This roadmap is a recommended semester-by-semester plan of study;Roadmap: Physical Education ­ Physical Education Licensure ­ Bachelor of Science [EH-BS-PEP-PEL] College

Sheridan, Scott

487

PHYSICS 237 SPRING 2006 Nuclear and Elementary Particle Physics  

E-Print Network [OSTI]

. K. Robinson Data Reduction and Error Analysis for the Physical Sciences QA278 .B48 2003 J. M. BlattPHYSICS 237 SPRING 2006 Nuclear and Elementary Particle Physics BOOKS ON RESERVE IN CRERAR LIBRARY 1987 K. S. Krane Introductory Nuclear Physics QC777.K730 1988 Useful references P. R. Bevington and D

488

Process for the fabrication of aluminum metallized pyrolytic graphite sputtering targets  

DOE Patents [OSTI]

An improved method is disclosed for fabricating pyrolytic graphite sputtering targets with superior heat transfer ability, longer life, and maximum energy transmission. Anisotropic pyrolytic graphite is contoured and/or segmented to match the erosion profile of the sputter target and then oriented such that the graphite`s high thermal conductivity planes are in maximum contact with a thermally conductive metal backing. The graphite contact surface is metallized, using high rate physical vapor deposition (HRPVD), with an aluminum coating and the thermally conductive metal backing is joined to the metallized graphite target by one of four low-temperature bonding methods; liquid-metal casting, powder metallurgy compaction, eutectic brazing, and laser welding. 11 figs.

Makowiecki, D.M.; Ramsey, P.B.; Juntz, R.S.

1995-07-04T23:59:59.000Z

489

Neutron-Rich Isotope Production Using a Uranium Carbide Carbon Nanotubes SPES Target Prototype  

SciTech Connect (OSTI)

The SPES (Selective Production of Exotic Species) project, under development at the Istituto Nazionale di Fisica Nucleare - Laboratori Nazionali di Legnaro (INFN-LNL), is a new-generation Isotope Separation On-Line (ISOL) facility for the production of radioactive ion beams by means of the proton-induced fission of uranium. In the framework of the research on the SPES target, seven uranium carbide discs, obtained by reacting uranium oxide with graphite and carbon nanotubes, were irradiated with protons at the Holifield Radioactive Ion Beam Facility (HRIBF) of Oak Ridge National Laboratory (ORNL). In the following, the yields of several fission products obtained during the experiment are presented and discussed. The experimental results are then compared to those obtained using a standard uranium carbide target. The reported data highlights the capability of the new type of SPES target to produce and release isotopes of interest for the nuclear physics community.

Corradetti, Stefano [ORNL; Biasetto, Lisa [INFN, Laboratori Nazionali di Legnaro, Italy; Manzolaro, Mattia [INFN, Laboratori Nazionali di Legnaro, Italy; Scarpa, Daniele [ORNL; Carturan, S. [INFN, Laboratori Nazionali di Legnaro, Italy; Andrighetto, Alberto [INFN, Laboratori Nazionali di Legnaro, Italy; Prete, Gianfranco [ORNL; Vasquez, Jose L [ORNL; Zanonato, P. [Dipartimento di Scienze Chimiche, Padova, Italy; Colombo, P. [Dipartimento di Ingegneria Meccanica, Padova, Italy; Jost, Carola [University of Tennessee, Knoxville (UTK); Stracener, Daniel W [ORNL

2013-01-01T23:59:59.000Z

490

PLASMA-PHYSICS-21 Heavy ion driven reactor-size double shell inertial fusion targets*  

E-Print Network [OSTI]

Inertial Confinement Fusion (ICF) is considered as an alternative to Magnetic Confinement Fusion to achieve controlled thermonuclear fusion. The main goal is to exploit the energy released from thermonuclear fusion reactions

M. C. Serna Moreno; N. A. Tahir; J. J. López Cela; A. R. Piriz; D. H. H. Hoffmann

491

PHYSICAL REVIEW E VOLUME 47, NUMBER 1 JANUARY 1993 Higher-dimensional targeting  

E-Print Network [OSTI]

Laboratory for Plasma Research, University of Maryland, College Park, Maryland P07$P. and Department Department of Mathematics, Arizona State University, Tempe, Arizona 8M87 Celso Grebogi Laboratory for Plasma Research, University of Maryland, College Park, Maryland 80'/$8 and Department of Mathematics and Institute

Yorke, James

492

The Axiomatisation of Physics  

E-Print Network [OSTI]

Analysing Quantum Measurement requires analysing the physics of amplification since amplification of phenomena from one scale to another scale is essential to measurement. There still remains the task of working this into an axiomatic logical structure, what should be the foundational status of the concepts of measurement and probability. We argue that the concept of physical probability is a multi-scale phenomenon and as such, can be explicitly defined in terms of more fundamental physical concepts. Thus Quantum Mechanics can be given a logically unexceptionable axiomatisation. We introduce a new definition of macroscopic observable which implements Bohr's insight that the observables of a measurement apparatus are classical in nature. In particular, we obtain the usual non-abelian observables as limits of abelian, classical, observables. This is the essential step in Hilbert's Sixth Problem.

Joseph F. Johnson

2007-05-17T23:59:59.000Z

493

Quantum physics meets biology  

E-Print Network [OSTI]

Quantum physics and biology have long been regarded as unrelated disciplines, describing nature at the inanimate microlevel on the one hand and living species on the other hand. Over the last decades the life sciences have succeeded in providing ever more and refined explanations of macroscopic phenomena that were based on an improved understanding of molecular structures and mechanisms. Simultaneously, quantum physics, originally rooted in a world view of quantum coherences, entanglement and other non-classical effects, has been heading towards systems of increasing complexity. The present perspective article shall serve as a pedestrian guide to the growing interconnections between the two fields. We recapitulate the generic and sometimes unintuitive characteristics of quantum physics and point to a number of applications in the life sciences. We discuss our criteria for a future quantum biology, its current status, recent experimental progress and also the restrictions that nature imposes on bold extrapolations of quantum theory to macroscopic phenomena.

Markus Arndt; Thomas Juffmann; Vlatko Vedral

2009-11-01T23:59:59.000Z

494

Lectures on LHC Physics  

E-Print Network [OSTI]

With the discovery of the Higgs boson the LHC experiments have closed the most important gap in our understanding of fundamental interactions. We now know that the interactions between elementary particles can be described by quantum field theory, more specifically by a renormalizable gauge theory. This theory is valid to arbitrarily high energy scales and do not require an ultraviolet completion. In these notes I cover three aspects to help understand LHC results in the Higgs sector and in searches for physics beyond the Standard Model: many facets of Higgs physics, QCD as it is relevant for LHC measurements, and standard phenomenological background knowledge. The lectures should put young graduate students into a position to really follow advanced writeups and first research papers. In that sense they can serve as a starting point for a research project in LHC physics. With this new, significantly expanded version I am confident that also some more senior colleagues will find them useful and interesting.

Tilman Plehn

2014-02-17T23:59:59.000Z

495

The Extreme Physics Explorer  

E-Print Network [OSTI]

Some tests of fundamental physics - the equation of state at supra-nuclear densities, the metric in strong gravity, the effect of magnetic fields above the quantum critical value - can only be measured using compact astrophysical objects: neutron stars and black holes. The Extreme Physics Explorer is a modest sized (~500 kg) mission that would carry a high resolution (R ~300) X-ray spectrometer and a sensitive X-ray polarimeter, both with high time resolution (~5 ?s) capability, at the focus of a large area (~5 sq.m), low resolution (HPD~1 arcmin) X-ray mirror. This instrumentation would enable new classes of tests of fundamental physics using neutron stars and black holes as cosmic laboratories.

Martin Elvis

2006-08-25T23:59:59.000Z

496

Stabilization of prescribed values and periodic orbits with regular and pulse target oriented control  

SciTech Connect (OSTI)

Investigating a method of chaos control for one-dimensional maps, where the intervention is proportional to the difference between a fixed value and a current state, we demonstrate that stabilization is possible in one of the two following cases: (1) for small values, the map is increasing and the slope of the line connecting the points on the line with the origin is decreasing; (2) the chaotic map is locally Lipschitz. Moreover, in the latter case we prove that any point of the map can be stabilized. In addition, we study pulse stabilization when the intervention occurs each m-th step and illustrate that stabilization is possible for the first type of maps. In the context of population dynamics, we notice that control with a positive target, even if stabilization is not achieved, leads to persistent solutions and prevents extinction in models which experience the Allee effect.

Braverman, E., E-mail: maelena@ucalgary.ca; Chan, B. [Department of Mathematics and Statistics, University of Calgary, 2500 University Drive N.W., Calgary AB T2N 1N4 (Canada)] [Department of Mathematics and Statistics, University of Calgary, 2500 University Drive N.W., Calgary AB T2N 1N4 (Canada)

2014-03-15T23:59:59.000Z

497

NRL PLASMA FORMULARY Beam Physics Branch  

E-Print Network [OSTI]

. . . . . . . . . . . . . . . . . . . . . . 42 Solar Physics Parameters . . . . . . . . . . . . . . . . . . . . . 43 Thermonuclear Fusion

Bowman,John C.

498

Princeton Plasma Physics Laboratory  

SciTech Connect (OSTI)

This report discusses the following topics: principal parameters achieved in experimental devices fiscal year 1990; tokamak fusion test reactor; compact ignition tokamak; Princeton beta experiment- modification; current drive experiment-upgrade; international collaboration; x-ray laser studies; spacecraft glow experiment; plasma processing: deposition and etching of thin films; theoretical studies; tokamak modeling; international thermonuclear experimental reactor; engineering department; project planning and safety office; quality assurance and reliability; technology transfer; administrative operations; PPPL patent invention disclosures for fiscal year 1990; graduate education; plasma physics; graduate education: plasma science and technology; science education program; and Princeton Plasma Physics Laboratory reports fiscal year 1990.

Not Available

1990-01-01T23:59:59.000Z

499

Magnetohydrodynamics and Solar Physics  

E-Print Network [OSTI]

In this short review, I present some of the recent progresses on the pending questions of solar physics. These questions let us revisit the solar wind, the solar dynamo problem, the dynamics of the photosphere and finally have a glimpse at other solar type stars. Discussing the use of direct numerical simulations in solar physics, I show that the full numerical calculation of the flow in a single supergranule would require more electric power than the luminosity of the sun itself with present computer technology.

Rieutord, Michel

2014-01-01T23:59:59.000Z

500

Physics at the Tevatron  

SciTech Connect (OSTI)

The theme of the XXXIV International Meeting on Fundamental Physics held in El Escorial, Spain on April 2-7, 2006 was ''From HERA and the TEVATRON to the LHC''. This is a summary of the four lectures I presented on ''Physics at the Tevatron''. Heavy quark production and the production of photons, bosons, and jets at the Tevatron are discussed. Also, a detailed study at the ''underlying event'' at CDF is presented together with a discussion of PYTHIA 6.2 tunes. A look back at the ''old days'' of Feynman-Field collider phenomenology is included.

Field, Rick; /Florida U.

2006-04-01T23:59:59.000Z