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Sample records for fixed target physics

  1. Physics Opportunities of a Fixed-Target Experiment using the...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: Physics Opportunities of a Fixed-Target Experiment using the LHC Beams Citation Details In-Document Search Title: Physics Opportunities of a Fixed-Target...

  2. Quarkonium Physics at a Fixed-Target Experiment Using the LHC...

    Office of Scientific and Technical Information (OSTI)

    Quarkonium Physics at a Fixed-Target Experiment Using the LHC Beams Citation Details In-Document Search Title: Quarkonium Physics at a Fixed-Target Experiment Using the LHC Beams...

  3. Quarkonium Physics at a Fixed-Target Experiment Using the LHC...

    Office of Scientific and Technical Information (OSTI)

    Quarkonium Physics at a Fixed-Target Experiment Using the LHC Beams Lansberg, J.P.; Orsay, IPN; Brodsky, S.J.; SLAC; Fleuret, F.; Ecole Polytechnique; Hadjidakis, C.; Orsay,...

  4. Spin physics at A Fixed-Target ExpeRiment at the LHC (AFTER@LHC)

    E-Print Network [OSTI]

    Rakotozafindrabe, A; Arnaldi, R; Brodsky, S J; Chambert, V; Didelez, J P; Ferreiro, E G; Fleuret, F; Genolini, B; Hadjidakis, C; Lansberg, J P; Lorce, C; Rosier, P; Schienbein, I; Scomparin, E; Uggerhoj, U I

    2013-01-01

    We outline the opportunities for spin physics which are offered by a next generation and multi-purpose fixed-target experiment exploiting the proton LHC beam extracted by a bent crystal. In particular, we focus on the study of single transverse spin asymetries with the polarisation of the target.

  5. Physics Opportunities of a Fixed-Target Experiment using the LHC Beams

    E-Print Network [OSTI]

    Brodsky, S J; Hadjidakis, C; Lansberg, J P

    2012-01-01

    We outline the many physics opportunities offered by a multi-purpose fixed-target experiment using the LHC proton and Pb beams extracted by a bent crystal. In a proton run with the LHC 7-TeV beam, one can analyze pp, pd and pA collisions at sqrt(s_NN)~115 GeV and even higher using the Fermi motion in a nuclear target. In a Pb run with a 2.76 TeV-per-nucleon beam, sqrt(s_NN) is as high as 72 GeV. Bent crystals can be used to extract about 5x10^8 protons/s; the integrated luminosity over a year reaches 0.5fb-1 on a typical 1 cm-long target without species limitation. Such an extraction mode does not alter the performance of the collider experiments at the LHC. By instrumenting the target-rapidity region, gluon and heavy-quark proton and neutron PDFs can be accessed at large x and even at x larger than 1 in the nuclear case. Single diffractive physics and, for the first time, the large negative-xF domain can be accessed. The nuclear target-species versatility provides a unique opportunity to study nuclear matter...

  6. Spin and diffractive physics with A Fixed-Target ExpeRiment at the LHC (AFTER@LHC)

    E-Print Network [OSTI]

    Lorce, C; Arnaldi, R; Brodsky, S J; Chambert, V; Didelez, J P; Ferreiro, E G; Fleuret, F; Genolini, B; Hadjidakis, C; Lansberg, J P; Rakotozafindrabe, A; Rosier, P; Schienbein, I; Scomparin, E; Uggerhoj, U I

    2012-01-01

    We report on the spin and diffractive physics at a future multi-purpose fixed-target experiment with proton and lead 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 using typical targets would surpass that of RHIC by more than 3 orders of magnitude. The fixed-target mode has the advantage to allow for measurements of single-spin asymmetries with polarized target as well as of single-diffractive processes in the target region.

  7. Physics Opportunities of a Fixed-Target Experiment using the LHC Beams

    E-Print Network [OSTI]

    S. J. Brodsky; F. Fleuret; C. Hadjidakis; J. P. Lansberg

    2012-02-29

    We outline the many physics opportunities offered by a multi-purpose fixed-target experiment using the LHC proton and Pb beams extracted by a bent crystal. In a proton run with the LHC 7-TeV beam, one can analyze pp, pd and pA collisions at sqrt(s_NN)~115 GeV and even higher using the Fermi motion in a nuclear target. In a Pb run with a 2.76 TeV-per-nucleon beam, sqrt(s_NN) is as high as 72 GeV. Bent crystals can be used to extract about 5x10^8 protons/s; the integrated luminosity over a year reaches 0.5fb-1 on a typical 1 cm-long target without species limitation. Such an extraction mode does not alter the performance of the collider experiments at the LHC. By instrumenting the target-rapidity region, gluon and heavy-quark proton and neutron PDFs can be accessed at large x and even at x larger than 1 in the nuclear case. Single diffractive physics and, for the first time, the large negative-xF domain can be accessed. The nuclear target-species versatility provides a unique opportunity to study nuclear matter vs. the features of the hot and dense matter formed in heavy-ion collisions, which can be studied in PbA collisions over the full range of target-rapidity domain with a large variety of nuclei. The polarization of hydrogen and nuclear targets allows an ambitious spin program, including measurements of the QCD lensing effects which underlie the Sivers single-spin asymmetry, the study of transversity distributions and possibly of polarized PDFs. We also emphasize the potential offered by pA ultra-peripheral collisions where the nucleus target A is used as a coherent photon source, mimicking photoproduction processes in ep collisions. Finally, we note that W and Z bosons can be produced and detected in a fixed-target experiment and in their threshold domain for the first time, providing new ways to probe the partonic content of the proton and the nucleus.

  8. Quarkonium Physics at a Fixed-Target Experiment using the LHC Beams

    E-Print Network [OSTI]

    Lansberg, J P; Fleuret, F; Hadjidakis, C

    2012-01-01

    We outline the many quarkonium-physics opportunities offered by a multi-purpose fixed-target experiment using the p and Pb LHC beams extracted by a bent crystal. This provides an integrated luminosity of 0.5 fb-1 per year on a typical 1cm-long target. Such an extraction mode does not alter the performance of the collider experiments at the LHC. With such a high luminosity, one can analyse quarkonium production in great details in pp, pd and pA collisions at sqrt(sNN)~115 GeV and at sqrt(sNN)~72 GeV in PbA collisions. In a typical pp (pA) run, the obtained quarkonium yields per unit of rapidity are 2-3 orders of magnitude larger than those expected at RHIC and about respectively 10 (70) times larger than for ALICE. In PbA, they are comparable. By instrumenting the target-rapidity region, the large negative-xF domain can be accessed for the first time, greatly extending previous measurements by Hera-B and E866. Such analyses should help resolving the quarkonium-production controversies and clear the way for glu...

  9. Spin and diffractive physics with a fixed-target experiment at the LHC (AFTER-LHC)

    SciTech Connect (OSTI)

    Lorce, C.; Chambert, V.; Didelez, J. P.; Genolini, B.; Hadjidakis, C.; Lansberg, J. P.; Rosier, P.; Brodsky, S. J.; Ferreiro, E. G.; Fleuret, F.

    2013-04-15

    We report on the spin and diffractive physics at a future multi-purpose f xed-target experiment with proton and lead LHC beams extracted by a bent crystal. The LHC multi-TeV beams allow for the most energetic f xed-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 using typical targets would surpass that of RHIC by more than 3 orders of magnitude. The f xed-target mode has the advantage to allow for measurements of single-spin asymmetries with polarized target as well as of single-diffractive processes in the target region.

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

    SciTech Connect (OSTI)

    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)

    2014-02-15

    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.

  11. A Fixed-Target ExpeRiment at the LHC (AFTER@LHC) : luminosities, target polarisation and a selection of physics studies

    E-Print Network [OSTI]

    Lansberg, J P; Didelez, J P; Genolini, B; Hadjidakis, C; Rosier, P; Arnaldi, R; Scomparin, E; Brodsky, S J; Ferreiro, E G; Fleuret, F; Rakotozafindrabe, A; Uggerhøj, U I

    2012-01-01

    We report on a future multi-purpose fixed-target experiment with the proton or lead ion LHC beams extracted by a bent crystal. The multi-TeV LHC beams allow for the most energetic fixed-target experiments ever performed. Such an experiment, tentatively named AFTER for "A Fixed-Target ExperRiment", gives access to new domains of particle and nuclear physics complementing that of collider experiments, in particular at RHIC and at the EIC projects. The instantaneous luminosity at AFTER using typical targets surpasses that of RHIC by more than 3 orders of magnitude. Beam extraction by a bent crystal offers an ideal way to obtain a clean and very collimated high-energy beam, without decreasing the performance of the LHC. The fixed-target mode also has the advantage of allowing for spin measurements with a polarised target and for an access over the full backward rapidity domain up to xF ~ - 1. Here, we elaborate on the reachable luminosities, the target polarisation and a selection of measurements with hydrogen an...

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

    E-Print Network [OSTI]

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

    2014-01-01

    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 quar...

  13. Physics Opportunities of a Fixed-Target Experiment using the LHC Beams

    Office of Scientific and Technical Information (OSTI)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield MunicipalTechnical Report:Speeding accessby aLEDSpeeding accessSpeedingPATENTS- 05 - -feedingPhysics

  14. Physics Opportunities of a Fixed-Target Experiment using the LHC Beams

    Office of Scientific and Technical Information (OSTI)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTech ConnectSpeeding accessusers' guide. V1.0.0.Report)Physics Flash

  15. Fixed target experiments at the Fermilab Tevatron

    SciTech Connect (OSTI)

    Gutierrez, Gaston; Reyes, Marco A.

    2014-09-29

    This paper presents a review of the study of Exclusive Central Production at a Center of Mass energy of ?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 ????, K?s K?s, K?s K±??, ?? and D. 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.

  16. Fixed Target Experiments at the Fermilab Tevatron

    SciTech Connect (OSTI)

    Gutierrez, Gaston; Reyes, Marco A.

    2014-11-10

    This paper presents a review of the study of Exclusive Central Production at a Center of Mass energy of ?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 ?+?-, K0s K0s, K0s K±??, ?? and D. 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.

  17. Renaissance of the ~1 TeV Fixed-Target Program

    SciTech Connect (OSTI)

    Adams, T.; Appel, Jeffrey A.; Arms, Kregg Elliott; Balantekin, A.B.; Conrad, Janet Marie; Cooper, Peter S.; Djurcic, Zelimir; Dunwoodie, William M.; Engelfried, Jurgen; Fisher, Peter H.; Gottschalk, E.; /Fermilab /Northwestern U.

    2009-05-01

    This document describes the physics potential of a new fixed-target program based on a {approx} TeV proton source. Two proton sources are potentially available in the future: the existing Tevatron at Fermilab, which can provide 800 GeV protons for fixed-target physics, and a possible upgrade to the SPS at CERN, called SPS+, which would produce 1 TeV protons on target. In this paper we use an example Tevatron fixed-target program to illustrate the high discovery potential possible in the charm and neutrino sectors. We highlight examples which are either unique to the program or difficult to accomplish at other venues.

  18. Renaissance of the ~ 1-TeV Fixed-Target Program

    SciTech Connect (OSTI)

    Adams, T.; Appel, J.A.; Arms, K.E.; Balantekin, A.B.; Conrad, J.M.; Cooper, P.S.; Djurcic, Z.; Dunwoodie, W.; Engelfried, J.; Fisher, P.H.; Gottschalk, Erik Edward; de Gouvea, A.; Heller, K.; Ignarra, C.M.; Karagiorgi, G.; Kwan, S.; Loinaz, W.A.; Meadows, B.; Moore, R.; Morfin, J.G.; Naples, D.; /Pittsburgh U. /St. Mary's Coll., Minnesota /New Mexico State U. /Michigan U. /Wayne State U. /South Carolina U. /Florida U. /Carnegie Mellon U. /Cincinnati U. /Columbia U. /Columbia U. /Northwestern U. /Yale U. /Fermilab /Argonne /Northwestern U. /APC, Paris

    2011-12-02

    This document describes the physics potential of a new fixed-target program based on a {approx}1 TeV proton source. Two proton sources are potentially available in the future: the existing Tevatron at Fermilab, which can provide 800 GeV protons for fixed-target physics, and a possible upgrade to the SPS at CERN, called SPS+, which would produce 1 TeV protons on target. In this paper we use an example Tevatron fixed-target program to illustrate the high discovery potential possible in the charm and neutrino sectors. We highlight examples which are either unique to the program or difficult to accomplish at other venues.

  19. Renaissance of the ~1 TeV fixed-target program

    E-Print Network [OSTI]

    Conrad, Janet

    This document describes the physics potential of a new fixed-target program based on a ~1 TeV proton source. Two proton sources are potentially available in the future: the existing Tevatron at Fermilab, which can provide ...

  20. Prospectives for A Fixed-Target ExpeRiment at the LHC: AFTER@LHC

    E-Print Network [OSTI]

    Lansberg, J P; Didelez, J P; Genolini, B; Hadjidakis, C; Lorce, C; Rosier, P; Anselmino, M; Arnaldi, R; Scomparin, E; Brodsky, S J; Ferreiro, E G; Fleuret, F; Rakotozafindrabe, A; Schienbein, I; Uggerhoj, U I

    2012-01-01

    We argue that the concept of a multi-purpose fixed-target experiment with the proton or lead-ion LHC beams extracted by a bent crystal would offer a number of ground-breaking precision-physics opportunities. The multi-TeV LHC beams will allow for the most energetic fixed-target experiments ever performed. The fixed-target mode has the advantage of allowing for high luminosities, spin measurements with a polarised target, and access over the full backward rapidity domain --uncharted until now-- up to x_F ~ -1.

  1. Theta vacuum physics from QCD at fixed topology

    E-Print Network [OSTI]

    Sinya Aoki; Hidenori Fukaya; Shoji Hashimoto; Tetsuya Onogi

    2007-10-24

    We propose a method to obtain physical quantities in the theta vacuum from those at fixed topology, which are different by finite size effects. Extending the work by Brower et al., we derive the formula to estimate these finite size corrections for arbitrary correlators in terms of the topological susceptibility and the theta dependence. Applying this formula, we show that topological susceptibility can be measured through two-point functions of pseudoscalar operator.

  2. Studying the high x frontier with A Fixed-Target ExpeRiment at the LHC

    E-Print Network [OSTI]

    Rakotozafindrabe, A; Arnaldi, R; Brodsky, S J; Chambert, V; Didelez, J P; Ferreiro, E G; Fleuret, F; Genolini, B; Hadjidakis, C; Lansberg, J P; Lorce, C; Rosier, P; Schienbein, I; Scomparin, E; Uggerhoj, U I

    2013-01-01

    The opportunities which are offered by a next generation and multi-purpose fixed-target experiment exploiting the proton and lead LHC beams extracted by a bent crystal are outlined. In particular, such an experiment can greatly complement facilities with lepton beams by unraveling the partonic structure of polarised and unpolarised nucleons and of nuclei, especially at large momentum fractions.

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

    E-Print Network [OSTI]

    T. Beranek; H. Merkel; M. Vanderhaeghen

    2013-03-11

    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.

  4. Double-quarkonium production at a fixed-target experiment at the LHC (AFTER@LHC)

    E-Print Network [OSTI]

    Jean-Philippe Lansberg; Hua-Sheng Shao

    2015-11-03

    We present predictions for double-quarkonium production in the kinematical region relevant for the proposed fixed-target experiment using the LHC beams (dubbed as AFTER@LHC). These include all spin-triplet S -wave charmonium and bottomonium pairs, i.e. Psi(n_1S) + Psi(n_2S), Psi(n_1S) + Upsilon(m_1S) and Upsilon(m_1S) + Upsilon(m_2S ) with n_1,n_2 = 1,2 and m_1,m_2 = 1,2,3. We calculate the contributions from double-parton scatterings and single-parton scatterings. With an integrated luminosity of 20 fb-1 to be collected at AFTER@LHC, we find that the yields for double-charmonium production are large enough for differential distribution measurements. We discuss some differential distributions for J/Psi + J/Psi production, which can help to study the physics of double-parton and single-parton scatterings in a new energy range and which might also be sensitive to double intrinsic c-bar(c) coalescence at large negative Feynman x.

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

    E-Print Network [OSTI]

    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

    2015-01-01

    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 $\\eta_{\\rm lab} \\in [1,5]$ ...

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

    E-Print Network [OSTI]

    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

    2015-02-03

    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.

  7. Proposed Fermilab fixed target experiment: Kaons at the Tevatron. Environmental Assessment

    SciTech Connect (OSTI)

    Not Available

    1993-12-01

    The US Department of Energy (DOE) has prepared an Environmental Assessment (EA), DOE/EA-0898, evaluating the impacts associated with the proposed fixed target experiment at the Fermi National Accelerator Laboratory (Femilab) in Batavia, Illinois, known as Kaons at the Tevatron (KTeV). The proposed KTeV project includes reconfiguration of an existing target station, enhancement of an existing beam transport system connected to existing utility facilities, and construction of a new experimental detector hall area. The study of the K meson, a type of subatomic particle, has been going on at Fermilab for 20 years. The proposed KTEV project advances the search for the origins of a violation of a fundamental symmetry of nature called charge parity (CP) violation. Based on the analysis in the EA, the DOE has determined that the proposed action does not constitute a major Federal action significantly affecting the quality of the human environment, within the meaning of the National Environmental Policy Act (NEPA) of 1969. Therefore, the preparation of an Environmental Impact Statement is not required.

  8. Recent Advances in Indirect Drive ICF Target Physics

    SciTech Connect (OSTI)

    Hammel, B; Lindl, J; Amendt, P A; Bernat, G W; Collins, G W; Glenzer, S H; Koch, S H; Haan, S; Landen, O L; Suter, L J

    2002-10-08

    In preparation for ignition on the National Ignition Facility, the Lawrence Livermore National Laboratory's Inertial Confinement Fusion Program, working in collaboration with Los Alamos National Laboratory, Commissariat a lEnergie Atomique (CEA), and Laboratory for Laser Energetics at the University of Rochester, has performed a broad range of experiments on the Nova and Omega lasers to test the fundamentals of the NIF target designs. These studies have refined our understanding of the important target physics, and have led to many of the specifications for the NIF laser and the cryogenic ignition targets. Our recent work has been focused in the areas of hohlraum energetics, symmetry, shock physics, and target design optimization & fabrication.

  9. 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 ON INERTIAL CONFINEMENT FUSION TARGET PHYSICS John Ahearne, Chair Sigma Xi Robert Dynes University Panel") will serve as a technical resource to the Committee on Inertial Confinement Energy Systems ("the

  10. Toward a physics design for NDCX-II, an ion accelerator for warm dense matter and HIF target physics studies

    E-Print Network [OSTI]

    Friedman, A.

    2008-01-01

    LLNL-JRNL-406007 Toward a physics design for NDCX-II, an ionmatter and HIF target physics studies A. Friedman, 1, ? J.Driven Warm Dense Matter Physics, Pleasanton, CA, Feb. 2006:

  11. Thin-thick hydrogen target for nuclear physics

    SciTech Connect (OSTI)

    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)

    2014-01-29

    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.

  12. Near-threshold production of $W^\\pm$, $Z^0$ and $H^0$ at a fixed-target experiment at the future ultra-high-energy proton colliders

    E-Print Network [OSTI]

    J. P. Lansberg; R. E. Mikkelsen; U. I Uggerhøj

    2015-08-18

    We outline the opportunities to study the production of the Standard Model bosons, $W^\\pm$, $Z^0$ and $H^0$ at "low" energies at fixed-target experiments based at possible future ultra-high-energy proton colliders, \\ie\\ the High-Energy LHC, the Super proton-proton Collider and the Future Circular Collider -- hadron-hadron. These can be indeed made in conjunction with the proposed future colliders designed to reach up to $\\sqrt{s}=100$ TeV by using bent crystals to extract part of the halo of the beam which would then impinge on a fixed target. Without disturbing the collider operation, this technique allows for the extraction of a substantial amount of particles in addition to serve for a beam-cleaning purpose. With this method, high-luminosity fixed-target studies at centre-of-mass energies above the $W^\\pm$, $Z^0$ and $H^0$ masses, $\\sqrt{s} \\simeq 170-300$ GeV, are possible. We also discuss the possibility offered by an internal gas target, which can also be used as luminosity monitor by studying the beam transverse shape.

  13. Near-threshold production of $W^\\pm$, $Z^0$ and $H^0$ at a fixed-target experiment at the future ultra-high-energy proton colliders

    E-Print Network [OSTI]

    Lansberg, J P; Uggerhøj, U I

    2015-01-01

    We outline the opportunities to study the production of the Standard Model bosons, $W^\\pm$, $Z^0$ and $H^0$ at "low" energies at fixed-target experiments based at possible future ultra-high-energy proton colliders, \\ie\\ the High-Energy LHC, the Super proton-proton Collider and the Future Circular Collider -- hadron-hadron. These can be indeed made in conjunction with the proposed future colliders designed to reach up to $\\sqrt{s}=100$ TeV by using bent crystals to extract part of the halo of the beam which would then impinge on a fixed target. Without disturbing the collider operation, this technique allows for the extraction of a substantial amount of particles in addition to serve for a beam-cleaning purpose. With this method, high-luminosity fixed-target studies at centre-of-mass energies above the $W^\\pm$, $Z^0$ and $H^0$ masses, $\\sqrt{s} \\simeq 170-300$ GeV, are possible. We also discuss the possibility offered by an internal gas target, which can also be used as luminosity monitor by studying the beam ...

  14. Physics Opportunities of a Fixed-Target Experiment using the LHC Beams

    Office of Scientific and Technical Information (OSTI)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield MunicipalTechnical Report:Speeding access toSmall Reactor forPatents - Mildredsensors inof

  15. Quarkonium Physics at a Fixed-Target Experiment Using the LHC Beams

    Office of Scientific and Technical Information (OSTI)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield MunicipalTechnical Report:Speeding access toSmall Reactor forPatentsConnectQ LA-UR-Article)

  16. Quarkonium Physics at a Fixed-Target Experiment Using the LHC Beams

    Office of Scientific and Technical Information (OSTI)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTech ConnectSpeedingConnect Pulse energy measurement(Conference)Article) |

  17. Quarkonium Physics at a Fixed-Target Experiment Using the LHC Beams

    Office of Scientific and Technical Information (OSTI)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTech ConnectSpeedingConnect Pulse energy measurement(Conference)Article) |(Conference)

  18. Spin Physics at A Fixed-Target ExpeRiment at the LHC (AFTER@LHC)

    Office of Scientific and Technical Information (OSTI)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail. (Conference)Feedback System in thewitness windows.Photoelectrodes.

  19. Spin Physics at A Fixed-Target ExpeRiment at the LHC (AFTER@LHC)

    Office of Scientific and Technical Information (OSTI)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail. (Conference)Feedback System in thewitness windows.Photoelectrodes.(Conference) |

  20. Target Physics Scaling for Z-Pinch Inertial Fusion Energy

    SciTech Connect (OSTI)

    Olson, R. E. [Sandia National Laboratories (United States)

    2005-05-15

    The Z-pinch fusion energy power plant concept is based upon an X-ray driven inertial confinement fusion (ICF) capsule having a hypothetical yield of 3 GJ with an overall target gain in the range of 50-100. In the present paper, a combination of analytic arguments, results of radiation-hydrodynamic computational simulations, and empirical scalings from Z-pinch hohlraum experiments are used to demonstrate that the absorption of approximately 6 MJ of X-ray energy by the capsule and 26 MJ by the hohlraum walls of an ICF target ({approx} 32 MJ total X-ray input) will be adequate to provide a 3 GJ yield. As a result, it appears that the Ref. 1 assumption of a 3 GJ thermonuclear yield with an overall target gain approaching 100 is conceptually feasible.

  1. Large Scale Computing and Storage Requirements for Nuclear Physics: 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesse Bergkamp Graduate studentScienceLaboratory programTarget

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

    SciTech Connect (OSTI)

    Essig, Rouven; Schuster, Philip; Toro, Natalia; Wojtsekhowski, Bogdan; ,

    2010-06-11

    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.

  3. verbatim fix

    E-Print Network [OSTI]

    I, Brad Lucier, have fixed a long-standing bug in amstex. Now, if one wants to add an e-mail address or URL (web page address) to an amstex document, one ...

  4. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-Inspired Solar Fuel ProductionRecoverable User Guide Nuclear ScienceTargets

  5. SELEX RICH performance and physics results

    SciTech Connect (OSTI)

    Jurgen Engelfried et al.

    2002-08-28

    SELEX took data in the 1996/7 Fixed Target Run at Fermilab. The excellent performance parameters of the SELEX RICH Detector had direct influence on the quality of the obtained physics results.

  6. High Power Molten Targets for Radioactive Ion Beam Production: from Particle Physics to Medical Applications

    E-Print Network [OSTI]

    De Melo Mendonca, T M

    2014-01-01

    Megawatt-class molten targets, combining high material densities and good heat transfer properties are being considered for neutron spallation sources, neutrino physics facilities and radioactive ion beam production. For this last category of facilities, in order to cope with the limitation of long diffusion times affecting the extraction of short-lived isotopes, a lead-bismuth eutectic (LBE) target loop equipped with a diffusion chamber has been proposed and tested offline during the EURISOL design study. To validate the concept, a molten LBE loop is now in the design phase and will be prototyped and tested on-line at CERN-ISOLDE. This concept was further extended to an alternative route to produce 1013 18Ne/s for the Beta Beams, where a molten salt loop would be irradiated with 7 mA, 160 MeV proton beam. Some elements of the concept have been tested by using a molten fluoride salt static unit at CERNISOLDE. The investigation of the release and production of neon isotopes allowed the measurement of the diffu...

  7. 22/03/10 9:25 AM#39: Math--Combined With GPS--Could Fix Traffic Jams | Physics & Math | DISCOVER Magazine Page 1 of 1http://discovermagazine.com/2010/jan-feb/39/article_print

    E-Print Network [OSTI]

    Flynn, Morris R.

    22/03/10 9:25 AM#39: Math--Combined With GPS--Could Fix Traffic Jams | Physics & Math | DISCOVER Magazine Page 1 of 1http://discovermagazine.com/2010/jan-feb/39/article_print Print this page #39: Math

  8. Next-To-Leading Order Differential Cross-Sections for $J/?$, $?(2S)$ and $?$ Production in Proton-Proton Collisions at a Fixed-Target Experiment using the LHC Beams (AFTER@LHC)

    E-Print Network [OSTI]

    Y. Feng; J. -X. Wang

    2015-10-18

    Using nonrelativistic QCD (NRQCD) factorization, we calculate the yields for $J/\\psi$, $\\psi(2S)$ and $\\Upsilon(1S)$ hadroproduction at $\\sqrt{s}=$ 72 GeV and 115 GeV including the next-to-leading order QCD corrections. Both these center-of-mass energies correspond to those obtained with 7~TeV and 2.76~TeV nucleon beam impinging a fixed target. We study the cross section integrated in $p_t$ as a function of the rapidity as well as the $p_t$ differential cross section in the central rapidity region. Using different NLO fit results of the NRQCD long-distance matrix elements, we evaluate a theoretical uncertainty which is certainly much larger than the projected experimental uncertainties with the expected 20 fb$^{-1}$ to be collected per year with AFTER@LHC.

  9. Characterization of nuclear physics targets using Rutherford backscattering and particle induced x-ray emission

    E-Print Network [OSTI]

    Th. Rubehn; G. J. Wozniak; L. Phair; L. G. Moretto; Kin M. Yu

    1996-09-23

    Rutherford backscattering and particle induced x-ray emission have been utilized to precisely characterize targets used in nuclear fission experiments. The method allows for a fast and non destructive determination of target thickness, homogeneity and element composition.

  10. Ultra-relativistic heavy-ion physics with AFTER@LHC

    E-Print Network [OSTI]

    Rakotozafindrabe, A; Brodsky, S J; Chambert, V; Didelez, J P; Genolini, B; Ferreiro, E G; Fleuret, F; Hadjidakis, C; Lansberg, J P; Rosier, P; Schienbein, I; Scomparin, E; Uggerhoj, U I

    2012-01-01

    We outline the opportunities for ultra-relativistic heavy-ion physics which are offered by a next generation and multi-purpose fixed-target experiment exploiting the proton and ion LHC beams extracted by a bent crystal.

  11. ION BEAM HEATED TARGET SIMULATIONS FOR WARM DENSE MATTER PHYSICS AND INERTIAL FUSION ENERGY

    E-Print Network [OSTI]

    Barnard, J.J.

    2008-01-01

    PHYSICS AND INERTIAL FUSION ENERGY J. J. Barnard 1 , J.dense matter and inertial fusion energy related beam-targetas drivers for inertial fusion energy (IFE), for their high

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

    SciTech Connect (OSTI)

    Hegelich, Bjorn M [Los Alamos National Laboratory

    2010-11-24

    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.

  13. 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

    SciTech Connect (OSTI)

    Barnard, J. J.; Hay, M. J.; Logan, B. G.; Ng, S. F.; Perkins, L. J.; Veitzer, S.; Yu, S. S.

    2010-07-01

    The simulations provided in this milestone have solidified the theoretical underpinning of direct drive targets and also the ability to design experiments on NDCX II that will enhance our understanding of ion-beam hydrodynamic coupling, and thus be relevant to IFE. For the case of the IFE targets, we have studied hydro and implosion efficiency using HYDRA in ID, a starting point towards the goal of polar direct drive in geometry compatible with liquid wall chambers. Recent analysis of direct drive fusion energy targets using heavy ion beams has found high coupling efficiency of ion beam energy into implosion energy. However, to obtain optimal coupling, the ion energy must increase during the pulse in order to penetrate the outflowing ablated material, and deposit the energy close enough to the fuel so that the fuel achieves sufficient implosion velocity. We have computationally explored ID (radial) time dependent models of ion driven direct drive capsule implosions using the Arbitrary Lagrangian-Eulerian (ALE) code HYDRA, to help validate the theoretical analysis done so far, particularly exploring the effects of varying the ion energy and ion current over the course of the pulse. On NDCX II, experiments have been proposed to explore issues of ion penetration of the outflowing plasma over the course of the ion pulse. One possibility is to create a first pulse of ions that heats a planar target, and produces an outflow of material. A second pulse, {approx}10 ns after the first, of higher ion energy (and hence larger projected range) will interact with this outflow before reaching and further heating the target. We have investigated whether the change in range can be tailored to match the evolution of the ablation front. We have carried out simulations using the one-dimensional hydrodynamic code DISH and HYDRA to set parameters for this class of experiments. DISH was upgraded with an ion deposition algorithm, and we have carried out ID (planar) simulations. HYDRA was also used for ID (planar) and 2D (r,z) simulations of potential experiments. We have also explored whether similar physics could be studied using an energy ramp (i.e., a velocity tilt) rather than two separate pulses. We have shown that an optimum occurs in the macropulse duration (with fixed velocity tilt) that maximizes the shock strength. In the area of IFE target design we have continued to explore direct drive targets composed of deuterium-tritium fuel and ablator layers. We have extended our previous target designs at 0.44 MJ drive energy, gain 50, (50 MeV foot, 500 MeV main pulse, Rb ion, which requires a large number of beams due to a high beam space charge constraint) to a power plant scale 3.7 MJ drive energy, gain {approx}150 (220 MeV foot, 2.2 GeV main pulse, Hg ion) that eases requirements on the accelerator. We have studied the effects of two important design choices on ICF target performance. We have shown that increasing the number of foot pulses may reduce the target's in-flight adiabat and consequently improve its compressibility and fusion yield. As in the case of laser drive, the first three shocks are the most important to the target's performance, with additional shocks contributing only marginally to compression and burn. We have also demonstrated that ion range lengthening during the main pulse can further reduce the target adiabat and improve the efficiency with which beam energy is coupled into the target. (Ion range lengthening using two different kinetic energies for the foot and main pulse has previously proven effective in the design of high gain targets).

  14. Fixed bed hydrocracking process

    SciTech Connect (OSTI)

    MacLean, A.J.; Holloway, R.L.; Lawson, V.A.; Cronen, J.W.

    1990-02-20

    This patent describes a process for converting a gas oil range petroleum feedstock into lighter petroleum products. It comprises: charging the gas oil range petroleum feedstock and hydrogen to a first fixed bed hydrocracking zone containing a hydrocracking catalyst at hydrocracking conditions to produce a first hydrocracking zone product stream; separating the first fixed bed hydrocracking zone product stream in a fractionation zone into a petroleum products stream and a bottoms stream; charging the bottoms stream and hydrogen to a second fixed bed hydrocracking zone containing a hydrocracking catalyst at hydrocracking conditions to produce a second fixed bed hydrocracking zone product stream; cooling the second fixed bed hydrocracking zone product stream to a temperature below about 250{degrees}F; recycling a first portion of the cooled second fixed bed hydrocracking zone product stream to the fractionation zone; removing materials having a boiling range from about 500{degrees} to about 650{degrees}F and a heavy bottoms stream having a boiling point above about 1050{degrees}F from a second portion of the cooled second fixed bed hydrocracking zone product stream to product a treated second portion; and recycling the treated second portion to the first fixed bed hydrocracking zone.

  15. Status of target physics for inertial confinement fusion: Report on the review at DOE Headquarters, Germantown, MD on November 14--17, 1988

    SciTech Connect (OSTI)

    Not Available

    1990-03-09

    A four day review to assess the status of target physics of inertial confinement fusion was held at US Department of Energy (DOE) Headquarters on November 14--17, 1988. This review completes the current series of reviews of the inertial fusion program elements to assess the status of the data base for a decision to proceed with the proposed Laboratory Microfusion Facility (LMF) that is being planned. In addition to target physics, the program elements that have been reviewed previously include the driver technology development for KrF and solid-state lasers, and the light-on beam pulsed power system. This series of reviews was undertaken for internal DOE assessment in anticipation of the ICF program review mandated by the Congress in 1988 to be completed in 1990 to assess the significance and implications of the progress that has been realized in the laboratory and the underground Halite/Centurion experiments. For this target physics review, both the direct and the indirect drive approaches were considered. The principal issues addressed in this review were: Is the present target physics data base adequate for a decision to proceed with design and construction of LMF now as opposed to continue planning activities at this time What specific additional target physics data are desirable to reduce the risk for a DOE decision to construct an LMF What is the role for continuation of Halite/Centurion experiments What priority should be given to the direct drive approach Are the program elements optimally structured to resolve the critical issues for an LMF decision Specific findings relating to these five issues are summarized in the following.

  16. 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 ...

  17. Physics

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

    Group (PDG) Organizations American Institute of Physics (AIP) American Physical Society (APS) Institute of Physics (IOP) SPIE - International society for optics and photonics Top...

  18. Comparing topological charge definitions using topology fixing actions

    E-Print Network [OSTI]

    Bruckmann, Falk; Jansen, Karl; Marinkovic, Marina; Urbach, Carsten; Wagner, Marc

    2009-01-01

    We investigate both the hyperbolic action and the determinant ratio action designed to fix the topological charge on the lattice. We show to what extent topology is fixed depending on the parameters of these actions, keeping the physical situation fixed. At the same time the agreement between different definitions of topological charge - the field theoretic and the index definition - is directly correlated to the degree topology is fixed. Moreover, it turns out that the two definitions agree very well. We also study finite volume effects arising in the static potential and related quantities due to topology fixing.

  19. Comparing topological charge definitions using topology fixing actions

    E-Print Network [OSTI]

    Falk Bruckmann; Florian Gruber; Karl Jansen; Marina Marinkovic; Carsten Urbach; Marc Wagner

    2010-04-05

    We investigate both the hyperbolic action and the determinant ratio action designed to fix the topological charge on the lattice. We show to what extent topology is fixed depending on the parameters of these actions, keeping the physical situation fixed. At the same time the agreement between different definitions of topological charge - the field theoretic and the index definition - is directly correlated to the degree topology is fixed. Moreover, it turns out that the two definitions agree very well. We also study finite volume effects arising in the static potential and related quantities due to topology fixing.

  20. Physics

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

    Physics Physics Our science answers questions about the nature of the universe and delivers solutions for national security concerns. Contact Us Division Leader Doug Fulton Deputy...

  1. The Fix Issue 10 

    E-Print Network [OSTI]

    Multiple Contributors

    1991-01-01

    the beginning of THE FIX, three beautiful years, I know they will both be missed. Hint to readers: if you love those guys as much as I do, have a box of "Puffs" handy for this chapter. (I 'll say no more ... ) "Endgame" by Sue-Anne Hartwick and "Games... times ... ) it moved along briskly , and even though only a real nouveau would think you ' d write a death story , it st i ll had me on the edge of my chair, wor r ied as Huech was about Starsky. It was a taut, well - honed police story shot...

  2. The Fix Issue 4 

    E-Print Network [OSTI]

    Multiple Contributors

    1988-01-01

    feeling the dearth of zines in a heavy way. Withdrawal symptoms were only just nearly averted. I'm looking forward to issue number four with baited breath. Not that I don't love THE FIX (you know, Martha, I don't have to tell you), but I am very... in perspective can do for you! Now my curiosity is getting the better of me. How will our poor, stranded survivors go from being such awkward strangers to the most intimate (ahem) of friends? I guess we stay tuned for more. One more note: I love the last...

  3. [FIXED RATE GUARANTEED OBLIGATIONS]

    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 QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'S FUTURE.EnergyWooden Rooftops | DepartmentMay 2014ProductionFIXED

  4. A systematic review of school-based interventions targeting physical activity and sedentary behaviour among older adolescents

    E-Print Network [OSTI]

    Hynynen, S.-T.; Stralen, M. M. van; Sniehotta, F. F.; Araujo-Soares, V.; Hardeman, W.; Chinapaw, M. J. M.; Vasankari, T.; Hankonen, N.

    2015-01-01

    Lack of physical activity (PA) and high levels of sedentary behaviour (SB) have been associated with health problems. This systematic review evaluates the effectiveness of school-based interventions to increase PA and decrease SB among 15-19-year...

  5. 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]

    Barnard, J. J.

    2010-01-01

    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

  6. Apparatus for fixing latency

    DOE Patents [OSTI]

    Hall, David R. (Provo, UT); Bartholomew, David B. (Springville, UT); Moon, Justin (Bountiful, UT); Koehler, Roger O. (Provo, UT)

    2009-09-08

    An apparatus for fixing computational latency within a deterministic region on a network comprises a network interface modem, a high priority module and at least one deterministic peripheral device. The network interface modem is in communication with the network. The high priority module is in communication with the network interface modem. The at least one deterministic peripheral device is connected to the high priority module. The high priority module comprises a packet assembler/disassembler, and hardware for performing at least one operation. Also disclosed is an apparatus for executing at least one instruction on a downhole device within a deterministic region, the apparatus comprising a control device, a downhole network, and a downhole device. The control device is near the surface of a downhole tool string. The downhole network is integrated into the tool string. The downhole device is in communication with the downhole network.

  7. Current experiments in elementary particle physics

    SciTech Connect (OSTI)

    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.

    1987-03-01

    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.

  8. AFTER@LHC: a precision machine to study the interface between particle and nuclear physics

    E-Print Network [OSTI]

    Lansberg, J P; Brodsky, S J; Chambert, V; Didelez, J P; Genolini, B; Ferreiro, E G; Fleuret, F; Hadjidakis, C; Lorce, C; Rakotozafindrabe, A; Rosier, P; Schienbein, I; Scomparin, E; Uggerhoj, U I

    2014-01-01

    We outline the opportunities to study with high precision the interface between nuclear and particle physics, which are offered by a next generation and multi-purpose fixed-target experiment exploiting the proton and ion LHC beams extracted by a bent crystal.

  9. AFTER@LHC: a precision machine to study the interface between particle and nuclear physics

    E-Print Network [OSTI]

    J. P. Lansberg; R. Arnaldi; S. J. Brodsky; V. Chambert; J. P. Didelez; B. Genolini; E. G. Ferreiro; F. Fleuret; C. Hadjidakis; C. Lorce; A. Rakotozafindrabe; P. Rosier; I. Schienbein; E. Scomparin; U. I. Uggerhoj

    2013-09-30

    We outline the opportunities to study with high precision the interface between nuclear and particle physics, which are offered by a next generation and multi-purpose fixed-target experiment exploiting the proton and ion LHC beams extracted by a bent crystal.

  10. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid youOxygen Generation | Center for GasPhysics Physics Print Because a

  11. Simulating full QCD with the fixed point action

    SciTech Connect (OSTI)

    Hasenfratz, Anna; Hasenfratz, Peter; Niedermayer, Ferenc

    2005-12-01

    Because of its complex structure the parametrized fixed point action can not be simulated with the available local updating algorithms. We constructed, coded, and tested an updating procedure with 2+1 light flavors, where the targeted s quark mass is at its physical value while the u and d quarks should produce pions lighter than 300 MeV. In the algorithm a partially global gauge update is followed by several accept/reject steps, where parts of the determinant are switched on gradually in the order of their costs. The trial configuration that is offered in the last, most expensive, stochastic accept/reject step differs from the original configuration by a Metropolis + over-relaxation gauge update over a subvolume of {approx}(1.3 fm){sup 4}. The acceptance rate in this accept/reject step is {approx}0.4. The code is optimized on different architectures and is running on lattices with L{sub s}{approx_equal}1.2 fm and 1.8 fm at a resolution of a{approx_equal}0.15 fm.

  12. Current experiments in elementary particle physics

    SciTech Connect (OSTI)

    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

    1989-09-01

    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.

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

    E-Print Network [OSTI]

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

    2008-10-09

    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.

  14. U.C. Davis high energy particle physics research: Technical progress report -- 1990

    SciTech Connect (OSTI)

    NONE

    1990-12-31

    Summaries of progress made for this period is given for each of the following areas: (1) Task A--Experiment, H1 detector at DESY; (2) Task C--Experiment, AMY detector at KEK; (3) Task D--Experiment, fixed target detectors at Fermilab; (4) Task F--Experiment, PEP detector at SLAC and pixel detector; (5) Task B--Theory, particle physics; and (6) Task E--Theory, particle physics.

  15. Current experiments in elementary particle physics. Revision 1-85

    SciTech Connect (OSTI)

    Wohl, C.G.; Armstrong, F.E.; Rittenberg, A.; Trippe, T.G.; Yost, G.P.; Oyanagi, Y.; Dodder, D.C.; Grudtsin, S.N.; Ryabov, Yu.G.; Frosch, R.

    1985-01-01

    This report contains summaries of 551 approved experiments in elementary particle physics (experiments that finished taking data before 1 January 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. Properties of the fixed-target beams at most of the laboratories are summarized. Instructions are given for searching online the computer database (maintained under the SLAC/SPIRES system) that contains the summaries.

  16. Variable delivery, fixed displacement pump

    DOE Patents [OSTI]

    Sommars, Mark F. (Sparland, IL)

    2001-01-01

    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.

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

    SciTech Connect (OSTI)

    Not Available

    1993-08-01

    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.

  18. Fixed Income Division Nomura International plc

    E-Print Network [OSTI]

    Macrina, Andrea

    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

  19. Instantons and the fixed point topological charge in the two-dimensional O(3) {sigma} model

    SciTech Connect (OSTI)

    Blatter, M.; Burkhalter, R.; Hasenfratz, P.; Niedermayer, F.

    1996-01-01

    We define a fixed point topological charge for the two-dimensional O(3) lattice {sigma} model which is free of topological defects. We use this operator in combination with the fixed point action to measure the topological susceptibility for a wide range of correlation lengths. The results strongly suggest that it is not a physical quantity in this model. The procedure, however, can be applied to other asymptotically free theories as well. {copyright} {ital 1996 The American Physical Society.}

  20. SF 6432-LA Fixed Price Latin America

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

    CORPORATION SF 6432-LA (112015) SECTION II STANDARD TERMS AND CONDITIONS FOR FIXED PRICE CONTRACTS RENEWABLE ENERGY PROGRAMS IN LATIN AMERICAN COUNTRIES THE FOLLOWING CLAUSES...

  1. Biological and physical regulation of the oceanic fixed nitrogen reservoir

    E-Print Network [OSTI]

    Weber, Thomas Smith

    2013-01-01

    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

  2. INVESTIGATION Gene Genealogies Within a Fixed Pedigree,

    E-Print Network [OSTI]

    INVESTIGATION Gene Genealogies Within a Fixed Pedigree, and the Robustness of Kingman's Coalescent, not as a random quantity. Gene genealogical models should describe the outcome of the percolation of genetic provide a surprisingly accurate description of gene genealogies on a fixed pedigree. We study

  3. Cooled particle accelerator target

    DOE Patents [OSTI]

    Degtiarenko, Pavel V.

    2005-06-14

    A novel particle beam target comprising: a rotating target disc mounted on a retainer and thermally coupled to a first array of spaced-apart parallel plate fins that extend radially inwardly from the retainer and mesh without physical contact with a second array of spaced-apart parallel plate fins that extend radially outwardly from and are thermally coupled to a cooling mechanism capable of removing heat from said second array of spaced-apart fins and located within the first array of spaced-apart parallel fins. Radiant thermal exchange between the two arrays of parallel plate fins provides removal of heat from the rotating disc. A method of cooling the rotating target is also described.

  4. Inverse scattering problem with data at fixed energy and fixed incident direction

    E-Print Network [OSTI]

    ., [2]). The inverse scattering problem with fixed­energy data consists in finding a potential q(x) from by the author ([4]), who also gave a method for recovery of q from the exact fixed­energy data, an error for a stable recovery of q from noisy fixed­energy data, and an error estimate for this method [5], [6], [7

  5. 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...

  6. Fixed point action and topology in the CP{sup 3} model

    SciTech Connect (OSTI)

    Burkhalter, R.

    1996-09-01

    We define a fixed point action in two-dimensional lattice CP{sup {ital N}{minus}1} models. The fixed point action is a classical perfect lattice action, which is expected to show strongly reduced cutoff effects in numerical simulations. Furthermore, the action has scale-invariant instanton solutions, which enables us to define a correct topological charge without topological defects. Using a parametrization of the fixed point action for the CP{sup 3} model in a Monte Carlo simulation, we study the topological susceptibility. {copyright} {ital 1996 The American Physical Society.}

  7. POSTDOCTORAL RESEARCHER Solar Physics

    E-Print Network [OSTI]

    to availability of funding. Candidates must have expertise in solar physics, in particular the interpretation andPOSTDOCTORAL RESEARCHER Solar Physics A fixed-term postdoctoral research position tenable/or modelling of small-scale solar transient features. Expertise in the use of data from different instruments

  8. Target assembly

    DOE Patents [OSTI]

    Lewis, Richard A. (Falls Church, VA)

    1980-01-01

    A target for a proton beam which is capable of generating neutrons for absorption in a breeding blanket includes a plurality of solid pins formed of a neutron emissive target material disposed parallel to the path of the beam and which are arranged axially in a plurality of layers so that pins in each layer are offset with respect to pins in all other layers, enough layers being used so that each proton in the beam will strike at least one pin with means being provided to cool the pins. For a 300 mA, 1 GeV beam (300 MW), stainless steel pins, 12 inches long and 0.23 inches in diameter are arranged in triangular array in six layers with one sixth of the pins in each layer, the number of pins being such that the entire cross sectional area of the beam is covered by the pins with minimum overlap of pins.

  9. Essential and Fixed Oils of Kansas Plants

    E-Print Network [OSTI]

    Wellington, Earl J.

    1908-01-01

    The following report deals with those Kansas plants (one or two trees included) which are known to yield or are suspected of yielding essential and fixed oils . No cultivated plants have been considered. Bernard B, ...

  10. Accelerator target

    DOE Patents [OSTI]

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

    1999-06-29

    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.

  11. Accelerator target

    DOE Patents [OSTI]

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

    1999-01-01

    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.

  12. Target Chamber

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With U.S. Coal StocksSuppliers Tag:TakeSeptember 13,TaraTarget Chamber

  13. Targeting engineering synchronization in chaotic systems

    E-Print Network [OSTI]

    Sourav K. Bhowmick; Dibakar Ghosh

    2015-06-14

    A method of targeting engineering synchronization states in two identical and mismatch chaotic systems is explained in details. The method is proposed using linear feedback controller coupling for engineering synchronization such as mixed synchronization, linear and nonlinear generalized synchronization and targeting fixed point. The general form of coupling design to target any desire synchronization state under unidirectional coupling with the help of Lyapunov function stability theory is derived analytically. A scaling factor is introduced in the coupling definition to smooth control without any loss of synchrony. Numerical results are done on two mismatch Lorenz systems and two identical Sprott oscillators.

  14. Inferring nuclear movements from fixed material Charless Fowlkes

    E-Print Network [OSTI]

    Fowlkes, Charless

    Inferring nuclear movements from fixed material Charless Fowlkes Jitendra Malik Electrical prior specific permission. #12;Inferring nuclear movements from fixed material Charless C. Fowlkes using nuclear positions extracted from a large number of images of fixed embryos. Embryos are sorted

  15. Target Diagnostics Supports NIF's Path to Ignition

    SciTech Connect (OSTI)

    Shelton, R

    2011-12-07

    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.

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

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

    Oxidation Model: Combined Effects of Fixed & Volatile Carbon Diesel Particulate Oxidation Model: Combined Effects of Fixed & Volatile Carbon Poster presented at the 16th Directions...

  17. Sequential conditions for fixed and periodic points 

    E-Print Network [OSTI]

    Peters, Burnis Charles

    1970-01-01

    ) (Member) ~A (Month) 1970 (Year) ~04SQQ ABSTRACT Sec, uential Conditions fo. Fixed and Periodic Points (August 1970) Burnis C. Peter, Jr. , B. A. , Texas ASM University; M. S. , Texas A&M University Directed by: Jack Bryant and L. F. Guseman, Jr.... Let (X, d) be a metric space and f a selfmap of X. It is shown that a number of known theorems on the existence of fixed and periodic points are related through simple properties of the n sequence (f ) of iterates . ACMOVI. EDGEMENTS I wish...

  18. Equation of state in 2+1 flavor QCD with improved Wilson quarks by the fixed scale approach

    E-Print Network [OSTI]

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

    2012-06-19

    We study the equation of state in 2+1 flavor QCD with nonperturbatively improved Wilson quarks coupled with the RG-improved Iwasaki glue. We apply the $T$-integration method to nonperturbatively calculate the equation of state by the fixed-scale approach. With the fixed-scale approach, we can purely vary the temperature on a line of constant physics without changing the system size and renormalization constants. Unlike the conventional fixed-$N_t$ approach, it is easy to keep scaling violations small at low temperature in the fixed scale approach. We study 2+1 flavor QCD at light quark mass corresponding to $m_\\pi/m_\\rho \\simeq 0.63$, while the strange quark mass is chosen around the physical point. Although the light quark masses are heavier than the physical values yet, our equation of state is roughly consistent with recent results with highly improved staggered quarks at large $N_t$.

  19. Task A, High Energy Physics Program experiment and theory: Task B, High Energy Physics Program numerical simulation of quantum field theories. [Particle Physics Group, Physics Dept. , The Florida State Univ. , Tallahassee

    SciTech Connect (OSTI)

    Not Available

    1992-01-01

    The effort of the experimental group has been concentrated on the CERN ALEPH and FERMILAB D0 collider experiments and completion of two fixed target experiments. The BNL fixed target experiment 771 took the world's largest sample of D(1285) and E/iota(1420) events, using pion, kaon and antiproton beams. Observing the following resonances: 0[sup [minus plus

  20. Polarized nuclear target based on parahydrogen induced polarization

    SciTech Connect (OSTI)

    D. Budker, M.P. Ledbetter, S. Appelt, L.S. Bouchard, B. Wojtsekhowski

    2012-12-01

    We discuss a novel concept of a polarized nuclear target for accelerator fixed-target scattering experiments, which is based on parahydrogen induced polarization (PHIP). One may be able to reach a 33% free-proton polarization in the ethane molecule. The potential advantages of such a target include operation at zero magnetic field, fast ({approx}100 HZ) polarization oscillation (akin to polarization reversal), and operation with large intensity of an electron beam.

  1. GraFix: sample preparation for single-

    E-Print Network [OSTI]

    Cai, Long

    (cryo-EM). GraFix uses a glycerol gradient centrifugation step in which the complexes are centrifuged a structurally and compositionally homogeneous sample; this in turn requires advanced tools for sample handling are dissolved during centrifugation because of the pressure acting on the molecules. Chemical fixation reagents

  2. HADRON CANCER THERAPY COMPLEX EMPLOYING NON-SCALING FFAG ACCELERATOR AND FIXED FIELD GANTRY DESIGN

    E-Print Network [OSTI]

    Keil, Eberhard

    HADRON CANCER THERAPY COMPLEX EMPLOYING NON-SCALING FFAG ACCELERATOR AND FIXED FIELD GANTRY DESIGN, Upton NY, USA Abstract Non-scaling FFAG rings for cancer hadron therapy offer reduced physical aperture of energies. INTRODUCTION Cancer proton therapy exists today in many medical facilities and many more

  3. LIQUID METAL JET TARGETS FOR INTENSE HIGH ENERGY BEAMS

    E-Print Network [OSTI]

    McDonald, Kirk

    LIQUID METAL JET TARGETS FOR INTENSE HIGH ENERGY BEAMS G. I. Silvestrov, Budker Institute for Nuclear Physics Novosibirsk, August 1998. #12;1 LIQUID METAL JET TARGETS FOR INTENSE HIGH ENERGY BEAMS target of liquid metal. The technical solution is producing the target in the form of flat jet flowing

  4. Company Template (Fixed Support) | Department of Energy

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

    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 Rank EERE: Alternative Fuels DataEnergy Webinar:I DueBETOofforCompany Template (Fixed Support) Company

  5. 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]

    Barnard, J. J.

    2010-01-01

    and J. Meyer-Ter- Vehn, The Physics of Inertial Fusion: BeamREPORT Assess the key physics that underpins high-hydroand J. Meyer-Ter-Vehn, The Physics o f Inertial Fusion: Beam

  6. Linear and angular retroreflecting interferometric alignment target

    DOE Patents [OSTI]

    Maxey, L. Curtis (Powell, TN)

    2001-01-01

    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.

  7. 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...

  8. Neutrino Factory Target Vessel

    E-Print Network [OSTI]

    McDonald, Kirk

    Neutrino Factory Target Vessel Concept V. Graves Target Studies EVO April 11, 2012 #12;2 Managed by UT-Battelle for the U.S. Department of Energy Target Vessel Concept 11 Apr 2012 Target Vessel;3 Managed by UT-Battelle for the U.S. Department of Energy Target Vessel Concept 11 Apr 2012 Starting Point

  9. Target Fabrication: A View from the Users

    SciTech Connect (OSTI)

    Kyrala, George A.; Balkey, Matthew M.; Barnes, Cris W.; Batha, Steven H.; Christensen, Cindy R.; Cobble, James A.; Fincke, James; Keiter, Paul; Lanier, Nicholas; Paisley, Dennis; Sorem, Michael; Swift, Damian; Workman, Jonathan

    2004-03-15

    Targets are used for a variety of purposes, but ultimately we use them to validate codes that help us predict and understand new phenomena or effects. The sophistication and complexity of High Energy Density Physics (HEDP) and Inertial Confinement Fusion (ICF) targets has increased in to match the advances made in modeling complex phenomena. The targets have changed from simple hohlraums, spherical geometries, and planar foils, to 3-dimensional geometries that require precision in construction, alignment, and metrology. Furthermore, material properties, such as surface morphologies and volume texture, have significant impact on the behavior of the targets and must be measured and controlled. In the following we will discuss how experimental physicists view targets and the influence that target construction has on interpreting the experimental results. We review a representative sampling of targets fabricated at the Los Alamos National Laboratory that are used in different experiments in support of ICF and HEDP.

  10. TARGET FABRICATION: A VIEW FROM THE USERS.

    SciTech Connect (OSTI)

    Kyrala, George A.; Balkey, Matthew M.; Batha, Steven H.; Barnes, Cris W.; Christensen, Cindy; Cobble, James; Fincke, James; Keiter, Paul; Lanier, Nicholas; Paisley, Dennis; Sorem, Michael S.; Swift, Damian; Workman, Jonathan

    2003-07-18

    Targets are used for a variety of purposes, but ultimately we use them to validate codes that help us predict and understand new phenomena or effects. The sophistication and complexity of High Energy Density Physics (HEDP) and Inertial Confinement Fusion (ICF) targets has increased in time to match the advances made in modeling complex phenomena. The targets have changed from simple hohlraums, spherical geometries, and planar foils, to 3-dimensional geometries that require precision in construction, alignment, and metrology. Furthermore, material properties, such as surface morphologies and volume texture, have significant impact on the behavior of the targets and must be measured and controlled. In the following we will discuss how experimental physicists view targets and the influence that target construction has on interpreting the experimental results. We review a representative sampling of targets fabricated at the Los Alamos National Laboratory that are used in different experiments in support of ICF and HEDP.

  11. Neutron Electric Dipole Moment at Fixed Topology

    E-Print Network [OSTI]

    Keh-Fei Liu

    2009-07-03

    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.

  12. PRESSURIZATION OF FIXED ROOF STORAGE TANKS DUE TO EXTERNAL FIRES

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    PRESSURIZATION OF FIXED ROOF STORAGE TANKS DUE TO EXTERNAL FIRES Fabien FouiHen, INERIS, Parc initiating event of the fire ball observed. In concrete terms, when a fixed roof storage tank is surrounded

  13. Improving Design Methods for Fixed-Foundation Offshore Wind Energy...

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

    Improving Design Methods for Fixed-Foundation Offshore Wind Energy Systems Improving Design Methods for Fixed-Foundation Offshore Wind Energy Systems October 1, 2013 - 3:10pm...

  14. Fixed-energy inverse scattering Mathematics Department, Kansas State University,

    E-Print Network [OSTI]

    scattering problem with fixed-energy data is described. Its comparison with the method based on the D-N map proved a uniqueness theorem for 3D ISP with fixed-energy data corresponding to q Qa and gave

  15. Multidimensional Inverse Scattering with Fixed-Energy Data

    E-Print Network [OSTI]

    Multidimensional Inverse Scattering with Fixed-Energy Data A.G. Ramm Department of Mathematics #12;Multidimensional Inverse Scattering with Fixed-Energy Data 375 0 =/8o p(x)wl(x)w2(x)da'. (**) J

  16. Fixed drug eruption caused by the Japanese herbal drug kakkonto

    E-Print Network [OSTI]

    Furuichi, Megumi; Hara, Hiroshi; Asano, Yukie; Makino, Teruhiko; Shimizu, Tadamichi

    2010-01-01

    Topical provocation of fixed drug eruption. Br J Dermatol.neglected offender for fixed drug eruptions. Eur J Dermatoloral and non-oral herbal drugs may cause FDE. References 1.

  17. SU-E-J-252: A Motion Algorithm to Extract Physical and Motion Parameters of a Mobile Target in Cone-Beam Computed Tomographic Imaging Retrospective to Image Reconstruction

    SciTech Connect (OSTI)

    Ali, I; Ahmad, S [University of Oklahoma Health Sciences, Oklahoma City, OK (United States); Alsbou, N [Department of Electrical and Computer Engineering, Ada, OH (United States)

    2014-06-01

    Purpose: A motion algorithm was developed to extract actual length, CT-numbers and motion amplitude of a mobile target imaged with cone-beam-CT (CBCT) retrospective to image-reconstruction. Methods: The motion model considered a mobile target moving with a sinusoidal motion and employed three measurable parameters: apparent length, CT number level and gradient of a mobile target obtained from CBCT images to extract information about the actual length and CT number value of the stationary target and motion amplitude. The algorithm was verified experimentally with a mobile phantom setup that has three targets with different sizes manufactured from homogenous tissue-equivalent gel material embedded into a thorax phantom. The phantom moved sinusoidal in one-direction using eight amplitudes (0–20mm) and a frequency of 15-cycles-per-minute. The model required imaging parameters such as slice thickness, imaging time. Results: This motion algorithm extracted three unknown parameters: length of the target, CT-number-level, motion amplitude for a mobile target retrospective to CBCT image reconstruction. The algorithm relates three unknown parameters to measurable apparent length, CT-number-level and gradient for well-defined mobile targets obtained from CBCT images. The motion model agreed with measured apparent lengths which were dependent on actual length of the target and motion amplitude. The cumulative CT-number for a mobile target was dependent on CT-number-level of the stationary target and motion amplitude. The gradient of the CT-distribution of mobile target is dependent on the stationary CT-number-level, actual target length along the direction of motion, and motion amplitude. Motion frequency and phase did not affect the elongation and CT-number distributions of mobile targets when imaging time included several motion cycles. Conclusion: The motion algorithm developed in this study has potential applications in diagnostic CT imaging and radiotherapy to extract actual length, size and CT-numbers distorted by motion in CBCT imaging. The model provides further information about motion of the target.

  18. Fixed target matrix for femtosecond time-resolved and in situ serial micro-crystallography

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

    Mueller, C.; Marx, A.; Epp, S. W.; Zhong, Y.; Kuo, A.; Balo, A. R.; Soman, J.; Schotte, F.; Lemke, H. T.; Owen, R. L.; et al

    2015-08-18

    We present a crystallography chip enabling in situ room temperature crystallography at microfocus synchrotron beamlines and X-ray free-electron laser (X-FEL) sources. Compared to other in situ approaches, we observe extremely low background and high diffraction data quality. The chip design is robust and allows fast and efficient loading of thousands of small crystals. The ability to load a large number of protein crystals, at room temperature and with high efficiency, into prescribed positions enables high throughput automated serial crystallography with microfocus synchrotron beamlines. In addition, we demonstrate the application of this chip for femtosecond time-resolved serial crystallography at the Linacmore »Coherent Light Source (LCLS, Menlo Park, California, USA). As a result, the chip concept enables multiple images to be acquired from each crystal, allowing differential detection of changes in diffraction intensities in order to obtain high signal-to-noise and fully exploit the time resolution capabilities of XFELs.« less

  19. Studies of Transverse-Momentum-Dependent distributions with A Fixed-Target

    Office of Scientific and Technical Information (OSTI)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail. (Conference)Feedback System inStatus ofSmall GTPases with TheirExpeRiment using the

  20. Studies of Transverse-Momentum-Dependent distributions with A Fixed-Target

    Office of Scientific and Technical Information (OSTI)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail. (Conference)Feedback System inStatus ofSmall GTPases with TheirExpeRiment using

  1. Studying the high x frontier with A Fixed-Target ExpeRiment at the LHC

    Office of Scientific and Technical Information (OSTI)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail. (Conference)Feedback System inStatus ofSmall GTPases withfromLeptons

  2. Studying the high x frontier with A Fixed-Target ExpeRiment at the LHC

    Office of Scientific and Technical Information (OSTI)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail. (Conference)Feedback System inStatus ofSmall GTPases withfromLeptons(Conference) |

  3. Fixed-Price Contracts Payment for a fixed-price contract is based on successfully providing the goods or services

    E-Print Network [OSTI]

    Tam, Tin-Yau

    costs more or costs less to complete the project than the price initially agreed upon. OneFixed-Price Contracts Payment for a fixed-price contract is based on successfully providing the goods or services agreed to in the contract. A fixed-price contract is not adjusted when it actually

  4. A Fixed Energy Fixed Angle Inverse Uniqueness in Interior Transmission Problem

    E-Print Network [OSTI]

    Lung-Hui Chen

    2015-08-05

    We transform an inverse scattering problem to be an interior transmission problem. We find an inverse uniqueness on the scatterer with a knowledge of a fixed interior transmission eigenvalue. By examining the solution in a series of spherical harmonics at far fields, we can decide the perturbation uniquely for the radially symmetric perturbations.

  5. Neutrino Factory Target Vessel

    E-Print Network [OSTI]

    McDonald, Kirk

    Neutrino Factory Target Vessel Concept Update V. Graves T. Lessard Target Studies EVO June 26, 2012 #12;2 Managed by UT-Battelle for the U.S. Department of Energy Target Vessel Update 26 June 2012 of Energy Target Vessel Update 26 June 2012 Review - Mercury Module Extraction #12;4 Managed by UT

  6. Neutrino Factory Target Vessel

    E-Print Network [OSTI]

    McDonald, Kirk

    Neutrino Factory Target Vessel Concept Update V. Graves Target Studies EVO June 12, 2012 #12;2 Managed by UT-Battelle for the U.S. Department of Energy Target Vessel Update 12 June 2012 Review ­ IPAC #12;3 Managed by UT-Battelle for the U.S. Department of Energy Target Vessel Update 12 June 2012 Inner

  7. Neutrino Factory Target Vessel

    E-Print Network [OSTI]

    McDonald, Kirk

    Neutrino Factory Target Vessel Concepts Updated 4/16/12 V. Graves Target Studies EVO April 11, 2012 #12;2 Managed by UT-Battelle for the U.S. Department of Energy Target Vessel Concept 16 Apr 2012 Target Vessel Requirements · Accurate jet placement · Jet/beam dump pool · Double containment of mercury

  8. THERMAL OSCILLATIONS IN LIQUID HELIUM TARGETS.

    SciTech Connect (OSTI)

    WANG,L.; JIA,L.X.

    2001-07-16

    A liquid helium target for the high-energy physics was built and installed in the proton beam line at the Alternate Gradient Synchrotron of Brookhaven National Laboratory in 2001. The target flask has a liquid volume of 8.25 liters and is made of thin Mylar film. A G-M/J-T cryocooler of five-watts at 4.2K was used to produce liquid helium and refrigerate the target. A thermosyphon circuit for the target was connected to the J-T circuit by a liquid/gas separator. Because of the large heat load to the target and its long transfer lines, thermal oscillations were observed during the system tests. To eliminate the oscillation, a series of tests and analyses were carried out. This paper describes the phenomena and provides the understanding of the thermal oscillations in the target system.

  9. Neutrino Factory Target Vessel

    E-Print Network [OSTI]

    McDonald, Kirk

    Neutrino Factory Target Vessel Concept V. Graves Target Studies EVO May 1, 2012 #12;2 Managed by UT-Battelle for the U.S. Department of Energy Target Vessel Concept 1 May 2012 Review ­ Two Target Vessel Ideas · Solid-Battelle for the U.S. Department of Energy Target Vessel Concept 1 May 2012 #12;4 Managed by UT-Battelle for the U

  10. Polarized internal target apparatus

    DOE Patents [OSTI]

    Holt, R.J.

    1984-10-10

    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.

  11. Electrically charged targets

    DOE Patents [OSTI]

    Goodman, Ronald K. (Livermore, CA); Hunt, Angus L. (Alamo, CA)

    1984-01-01

    Electrically chargeable laser targets and method for forming such charged targets in order to improve their guidance along a predetermined desired trajectory. This is accomplished by the incorporation of a small amount of an additive to the target material which will increase the electrical conductivity thereof, and thereby enhance the charge placed upon the target material for guidance thereof by electrostatic or magnetic steering mechanisms, without adversely affecting the target when illuminated by laser energy.

  12. 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]

    Barnard, J. J.

    2010-01-01

    analysis o f direct drive fusion energy targets using heavyof Science, Office of Fusion Energy Sciences, of the U.S.of Science, Office of Fusion Energy Sciences, of the U.S.

  13. Magnetically attached sputter targets

    DOE Patents [OSTI]

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

    1994-02-15

    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.

  14. Optimal measurements and fixed-point maps

    SciTech Connect (OSTI)

    Dhara, Chirag; Hari Dass, N.D.

    2005-08-15

    When an optimal measurement of (S{sub x},S{sub y},S{sub z}) is made on a qubit and what we call a mutually unbiased mixture of the resulting ensembles is taken, then the post-measurement density matrix is shown to be related to the premeasurement density matrix through a simple linear relation. It is also shown that the form of this relation is the same for all quantum systems. It is shown that for a general quantum system such a relation holds only when the measurements are made in mutually unbiased bases. The post-measurement density matrix is shown to be a normalized incoherent superposition of the identity map and the pin map of Gorini and Sudarshan. A pin map is one which maps all density matrices to a fixed density matrix which in our case turns out to be the unit matrix. The result is shown to be true irrespective of whether the initial state is pure or mixed. For spin-1/2 systems it is also shown explicitly that nonorthogonal measurements fail to give such a linear relation no matter how the ensembles are mixed.

  15. Apparatus for fixed bed coal gasification

    DOE Patents [OSTI]

    Sadowski, Richard S. (Greenville, SC)

    1992-01-01

    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.

  16. First SNS Target Replacement

    E-Print Network [OSTI]

    McDonald, Kirk

    ) used to drain the mercury to a shielded storage tank is the only active element. · However, the process · A shielded "Target Service Bay" located downstream of the target-proton beam interaction monolith serves

  17. RIEMANN'S INEQUALITY AND RIEMANN-ROCH Fix a compact ...

    E-Print Network [OSTI]

    2013-11-14

    RIEMANN'S INEQUALITY AND RIEMANN-ROCH. DONU ARAPURA. Fix a compact connected Riemann surface X of genus g. Riemann's inequality gives a

  18. FIXED POINT INDICES AND MANIFOLDS WITH COLLARS Chen ...

    E-Print Network [OSTI]

    2005-05-05

    Brasiliero de Topologia 53 (1988), 59–67, Universidade de Sao Paulo, Sao Carlos S. P., Brasil. [8]. , A de Moivre like formula for fixed point theory, Proceedings ...

  19. Algorithm for Lot Sizing with Inventory Bounds and Fixed Costs

    E-Print Network [OSTI]

    Alper Atamturk

    2007-06-26

    Jun 26, 2007 ... An O(n^2) Algorithm for Lot Sizing with Inventory Bounds and Fixed Costs. Alper Atamturk (atamturk ***at*** berkeley.edu) Simge Kucukyavuz ...

  20. Fuel Target Implosion in Ion beam Inertial Confinement Fusion

    E-Print Network [OSTI]

    Kawata, Shigeo

    2015-01-01

    The numerical results for the fuel target implosion are presented in order to clarify the target physics in ion beam inertial fusion. The numerical analyses are performed for a direct-driven ion beam target. In the paper the following issues are studied: the beam obliquely incidence on the target surface, the plasma effect on the beam-stopping power, the beam particle energy, the beam time duration, the target radius, the beam input energy and the non-uniformity effect on the fuel target performance. In this paper the beam ions are protons.

  1. High Power Cryogenic Targets

    SciTech Connect (OSTI)

    Gregory Smith

    2011-08-01

    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.

  2. SU-E-T-462: Fixed-Jaw Optimization for Critical Structure Sparing in IMRT Treatment Planning: Beam Modeling Cautions for Non-Routine Use

    SciTech Connect (OSTI)

    Price, R; Veltchev, I; Cherian, G; Ma, C [Chase Cancer Center, Philadelphia, PA (United States)

    2014-06-01

    Purpose: Multiple publications exist concerning fixed-jaw utilization to avoid linac carriage shifts and reduce intensity modulated radiotherapy (IMRT) treatment times. The purpose of this work is to demonstrate delivery QA discrepancies and illustrate the need for improved treatment planning system (TPS) commissioning for non-routine use. Methods: A 6cm diameter spherical target was delineated on a virtual phantom containing the Iba Matrixx linear array within the Varian Eclipse TPS. Optimization was performed for target coverage for the following 3 scenarios: a single open, zero degree field where the X and Y jaws completely cover the target; the same field using an asymmetric, fixed-jaw technique where the upper Y jaw does not cover the superior 2cm of the target; and both of the aforementioned directed at the target at 315 and 45 degree gantry angles, respectively. This final orientation was also irradiated on a linac for delivery analysis. A sarcoma patient case was also analyzed where the fixed jaw technique was utilized for kidney sparing. Results: The open beam results were as predicted but the fixed-jaw results demonstrate a pronounced fluence increase along the asymmetric, upper jaw. Analysis of the delivery of the combined beam plan Resultin 83% of pixels evaluated passing gamma criteria of 3%, 3mm DTA. Analysis for the sarcoma patient, in the plane of the shielded kidney, indicated 93% passing although the maximum dose discrepancies in this region were approximately 23%. Conclusion: Optimization within the target is routinely performed using MLC leaf-end characteristics. The fixed-jaw technique forces optimization of target coverage to utilize the penumbra profiles of the associated beamdefining jaw. If the profiles were collected using a common 0.125cc ionization chamber, the resolution may be insufficient resulting in a planvs.-delivery mismatch. It is recommended that high-resolution beam characteristics be considered when non-routine planning methods are utilized.

  3. Simulations at fixed topology: fixed topology versus ordinary finite volume corrections

    E-Print Network [OSTI]

    Arthur Dromard; Wolfgang Bietenholz; Urs Gerber; Héctor Mejía-Díaz; Marc Wagner

    2015-05-13

    Lattice QCD simulations tend to get stuck in a single topological sector at fine lattice spacing, or when using chirally symmetric quarks. In such cases computed observables differ from their full QCD counterparts by finite volume corrections, which need to be understood on a quantitative level. We extend a known relation from the literature between hadron masses at fixed and at unfixed topology by incorporating in addition to topological finite volume effects, also ordinary finite volume effects. We present numerical results for SU(2) Yang-Mills theory.

  4. Designing high power targets with computational fluid dynamics (CFD)

    SciTech Connect (OSTI)

    Covrig, S. D.

    2013-11-07

    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.

  5. SF 6432-LA Fixed Price Latin America

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) byMultidayAlumni > The EnergyRyanPhysics LabSAP7/31/13SFSF

  6. SF 6432-LA Fixed Price Latin America

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) byMultidayAlumni > The EnergyRyanPhysics LabSAP7/31/13SFSFLA

  7. SF 6432-LA Fixed Price Latin America

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) byMultidayAlumni > The EnergyRyanPhysics LabSAP7/31/13SFSFLA&

  8. 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

  9. CARBON EMISSIONS AND CARBON FIXING FROM AN ECONOMIC PERSPECTIVE

    E-Print Network [OSTI]

    Bateman, Ian J.

    constraint to these relationships, with the carbon dioxide emissions from fossil fuel consumption pressingCARBON EMISSIONS AND CARBON FIXING FROM AN ECONOMIC PERSPECTIVE by Dennis Anderson CSERGE GEC Working Paper 92-28 #12;CARBON EMISSIONS AND CARBON FIXING FROM AN ECONOMIC PERSPECTIVE by Dennis Anderson

  10. Fixed-Order H Controller Design via HIFOO, a Specialized

    E-Print Network [OSTI]

    Overton, Michael L.

    Gumussoy Michael L. Overton Abstract-- We report on our experience with fixed-order H controller design controller design. I. INTRODUCTION In this note, we report on our experience applying HIFOO [6] (H Fixed of the transfer function for the closed loop plant. This is a difficult optimization problem due

  11. TECHNOLOGY-RELATED FIXED ASSET INVENTORY CONTROL PROCEDURES New Purchases

    E-Print Network [OSTI]

    Hutchens, John

    TECHNOLOGY-RELATED FIXED ASSET INVENTORY CONTROL PROCEDURES New Purchases When a new computer the new equipment shall be submitted to Information Technology Services (ITS) with the ITS Job Request a computer, printer, projector or other technology-related fixed asset to a new University department

  12. Physics 630 Statistical Physics

    E-Print Network [OSTI]

    Kioussis, Nicholas

    strongly the issue of problem solving and understanding of the main concepts in Statistical PhysicsPhysics 630 Statistical Physics Spring 2005 Logistics Lecture Room: 1100 (Science I, 1st floor (Supplement) Introduction to Modern Statistical Mechanics, by David Chandler, Oxford Objectives This course

  13. Protein search for multiple targets on DNA

    E-Print Network [OSTI]

    Martin Lange; Maria Kochugaeva; Anatoly B. Kolomeisky

    2015-08-03

    Protein-DNA interactions are crucial for all biological processes. One of the most important fundamental aspects of these interactions is the process of protein searching and recognizing specific binding sites on DNA. A large number of experimental and theoretical investigations have been devoted to uncovering the molecular description of these phenomena, but many aspects of the mechanisms of protein search for the targets on DNA remain not well understood. One of the most intriguing problems is the role of multiple targets in protein search dynamics. Using a recently developed theoretical framework we analyze this question in detail. Our method is based on a discrete-state stochastic approach that takes into account most relevant physical-chemical processes and leads to fully analytical description of all dynamic properties. Specifically, systems with two and three targets have been explicitly investigated. It is found that multiple targets in most cases accelerate the search in comparison with a single target situation. However, the acceleration is not always proportional to the number of targets. Surprisingly, there are even situations when it takes longer to find one of the multiple targets in comparison with the single target. It depends on the spatial position of the targets, distances between them, average scanning lengths of protein molecules on DNA, and the total DNA lengths. Physical-chemical explanations of observed results are presented. Our predictions are compared with experimental observations as well as with results from a continuum theory for the protein search. Extensive Monte Carlo computer simulations fully support our theoretical calculations.

  14. Project Plan Remote Target Fabrication Refurbishment Project

    SciTech Connect (OSTI)

    Bell, Gary L; Taylor, Robin D

    2009-08-01

    In early FY2009, the DOE Office of Science - Nuclear Physics Program reinstated a program for continued production of {sup 252}Cf and other transcurium isotopes at the Radiochemical Engineering Development Center (REDC) at Oak Ridge National Laboratory (ORNL). The FY2009 major elements of the workscope are as follows: (1) Recovery and processing of seven transuranium element targets undergoing irradiation at the High Flux Isotope Reactor (HFIR) at ORNL; (2) Development of a plan to manufacture new targets for irradiation beginning in early- to mid-FY10 to supply irradiated targets for processing Campaign 75 (TRU75); and (3) Refurbishment of the target manufacturing equipment to allow new target manufacture in early FY10 The {sup 252}Cf product from processing Campaign 74 (recently processed and currently shipping to customers) is expected to supply the domestic demands for a period of approximately two years. Therefore it is essential that new targets be introduced for irradiation by the second quarter of FY10 (HFIR cycle 427) to maintain supply of {sup 252}Cf; the average irradiation period is {approx}10 HFIR cycles, requiring about 1.5 calendar years. The strategy for continued production of {sup 252}Cf depends upon repairing and refurbishing the existing pellet and target fabrication equipment for one additional target production campaign. This equipment dates from the mid-1960s to the late 1980s, and during the last target fabrication campaign in 2005- 2006, a number of component failures and operations difficulties were encountered. It is expected that following the target fabrication and acceptance testing of the targets that will supply material for processing Campaign 75 a comprehensive upgrade and replacement of the remote hot-cell equipment will be required prior to subsequent campaigns. Such a major refit could start in early FY 2011 and would take about 2 years to complete. Scope and cost estimates for the repairs described herein were developed, and authorization for the work was received in July 2009 under the Remote Target Fabrication Refurbishment Task of the Enhanced Utilization of Isotope Facilities project (Project Identification Code 2005230) funded by the American Recovery and Reinvestment Act of 2009. The goal of this project is to recover the capability to produce 4-5 curium targets for the irradiation period starting with HFIR cycle 427, currently scheduled to begin 2/17/10. Assuming success, the equipment would then be used to fabricate 6-7 additional targets to hold for the next irradiation campaign specified by the program. Specific objectives are the return to functionality of the Cubicle 3 Pellet Fabrication Line; Cubicle 2 Target Assembly equipment; and Cubicle 1 Target Inspection and Final Assembly system.

  15. SNS Target Systems Operational

    E-Print Network [OSTI]

    McDonald, Kirk

    on Applications of High Intensity Proton Accelerators October 19-21, 2009 Fermi National Accelerator Laboratory ­ Recently the problem has reappeared at higher flow rates and is under investigation · A cryogenic hydrogen flow problem with the bottom downstream moderator was fixed by installing a flow guide (spring) through

  16. Manufacturing complex silica aerogel target components

    SciTech Connect (OSTI)

    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

    2008-01-01

    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.

  17. Renormalization group flow and fixed point of the lattice topological charge in the 2D O(3) {sigma} model

    SciTech Connect (OSTI)

    DElia, M.; Farchioni, F.; Papa, A.

    1997-02-01

    We study the renormalization group evolution up to the fixed point of the lattice topological susceptibility in the 2D O(3) nonlinear {sigma} model. We start with a discretization of the continuum topological charge by a local charge density polynomial in the lattice fields. Among the different choices we propose also a Symanzik-improved lattice topological charge. We check step by step in the renormalization group iteration the progressive dumping of quantum fluctuations, which are responsible for the additive and multiplicative renormalizations of the lattice topological susceptibility with respect to the continuum definition. We find that already after three iterations these renormalizations are negligible and an excellent approximation of the fixed point is achieved. We also check by an explicit calculation that the assumption of slowly varying fields in iterating the renormalization group does not lead to a good approximation of the fixed point charge operator. {copyright} {ital 1997} {ital The American Physical Society}

  18. Sanctions and mutualism stability: why do rhizobia fix nitrogen? 

    E-Print Network [OSTI]

    West, Stuart A; Kiers, E Toby; Simms, Ellen L; Denison, R Ford

    2002-01-01

    Why do rhizobia expend resources on fixing N2 for the benefit of their host plant, when they could use those resources for their own reproduction? We present a series of theoretical models which counter the hypotheses ...

  19. FIXED PRICE RESIDUAL FUNDS POLICY Policy dated March 29, 1999

    E-Print Network [OSTI]

    Weston, Ken

    FIXED PRICE RESIDUAL FUNDS POLICY Policy dated March 29, 1999 After completion of all deliverables in this process. May 1, 1999 Amendment to Policy · The first $75,000 of the residual balance will be transferred

  20. Heat transfer rates in fixed bed catalytic reactors 

    E-Print Network [OSTI]

    Levelton, Bruce Harding

    1951-01-01

    bed. A consideration of thermal effects in a gas-solid tubular reactor involves a number of prime variables, viz. (a) Reynolds number and heat capacity of reactants (b) Tube diameter and length (c) Catalyst particle size, shape and characteristics... conditions than in fixed bed reactors prevail. The problem of determining temperatures in moving-bed catalytic reactors is somewhat similar to that in gas-solid fixed bed reactors, but this investigation will not treat such cases. The mechanism of heat...

  1. Contamination effects on fixed-bias Langmuir probes

    SciTech Connect (OSTI)

    Steigies, C. T.; Barjatya, A.

    2012-11-15

    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.

  2. DEPARTMENT OF PHYSICS Physics 32100

    E-Print Network [OSTI]

    Brinkmann, Peter

    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

  3. DEPARTMENT OF PHYSICS Physics 21900

    E-Print Network [OSTI]

    Brinkmann, Peter

    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

  4. DEPARTMENT OF PHYSICS Physics 20300

    E-Print Network [OSTI]

    Brinkmann, Peter

    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

  5. Fast ignition of inertial confinement fusion targets

    SciTech Connect (OSTI)

    Gus'kov, S. Yu., E-mail: guskov@sci.lebedev.ru [Russian Academy of Sciences, Lebedev Physical Institute (Russian Federation)

    2013-01-15

    Results of studies on fast ignition of inertial confinement fusion (ICF) targets are reviewed. The aspects of the fast ignition concept, which consists in the separation of the processes of target ignition and compression due to the synchronized action of different energy drivers, are considered. Criteria for the compression ratio and heating rate of a fast ignition target, the energy balance, and the thermonuclear gain are discussed. The results of experimental and theoretical studies of the heating of a compressed target by various types of igniting drivers, namely, beams of fast electrons and light ions produced under the action of a petawatt laser pulse on the target, a heavy-ion beam generated in the accelerator, an X-ray pulse, and a hydrodynamic flow of laser-accelerated matter, are analyzed. Requirements to the igniting-driver parameters that depend on the fast ignition criteria under the conditions of specific target heating mechanisms, as well as possibilities of practical implementation of these requirements, are discussed. The experimental programs of various laboratories and the prospects of practical implementation of fast ignition of ICF targets are reviewed. To date, fast ignition is the most promising method for decreasing the ignition energy and increasing the thermonuclear gain of an ICF plasma. A large number of publications have been devoted to investigations of this method and adjacent problems of the physics of igniting drivers and their interaction with plasma. This review presents results of only some of these studies that, in the author's opinion, allow one to discuss in detail the main physical aspects of the fast ignition concept and understand the current state and prospects of studies in this direction.

  6. The Failure of Environmental Education [And How We Can Fix It

    E-Print Network [OSTI]

    Hamilton-Smith, Elery

    2011-01-01

    The Failure of Environmental Education [And How We Can FixThe Failure of Environmental Education [And How We Can Fix

  7. Remarks on a fixed point theorem of Caristi 

    E-Print Network [OSTI]

    Egle, David Lee

    1977-01-01

    ) = u and f(v) = v. Then, d(u, v) = d(f(u), f(v)) & o(d(u, f(u) + d(v, f(v))) = 0. 13 Thus, u = v and the fixed point is unique. The convergence of any sequence of i terates follows from the observation following Theorem 1. 3. & The concept of a... of the fixed point follows directly from the uniqueness of the fixed point for fn(u) Let x c X. Let s(x) = max (d(f (x), u) : j = 0, 1, . . . , (n(u)-l)). For m sufficiently large, write m = p n(u) + q, where 0 & q & n(u), p & 0. Then d(f (x, u) = d(f...

  8. Chiral-Scale Perturbation Theory About an Infrared Fixed Point

    E-Print Network [OSTI]

    R. J. Crewther; Lewis C. Tunstall

    2014-01-31

    We review the failure of lowest order chiral $SU(3)_L \\times SU(3)_R$ perturbation theory $\\chi$PT$_3$ to account for amplitudes involving the $f_0(500)$ resonance and $O(m_K)$ extrapolations in momenta. We summarize our proposal to replace $\\chi$PT$_3$ with a new effective theory $\\chi$PT$_\\sigma$ based on a low-energy expansion about an infrared fixed point in 3-flavour QCD. At the fixed point, the quark condensate $\\langle\\bar{q}q\\rangle_\\mathrm{vac}\

  9. An order theoretic approach in fixed point theory

    E-Print Network [OSTI]

    Yaé Ulrich Gaba

    2014-11-07

    In the present article, we show the existence of a coupled fixed point for an order preserving mapping in a preordered left K-complete quasi-pseudometric space using a preorder induced by an appropriate function. We also define the concept of left-weakly related mappings on a preordered space and discuss common coupled fixed points for two and three left-weakly related mappings in the same space. Similar results are given for right-weakly related mappings, the dual notion of left-weakly related mappings.

  10. Measurement of thermodynamic temperature of high temperature fixed points

    SciTech Connect (OSTI)

    Gavrilov, V. R.; Khlevnoy, B. B.; Otryaskin, D. A.; Grigorieva, I. A.; Samoylov, M. L.; Sapritsky, V. I.

    2013-09-11

    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.

  11. Optimization Studies for ISOL Type High-Powered Targets

    SciTech Connect (OSTI)

    Remec, Igor; Ronningen, Reginald Martin

    2013-09-24

    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.

  12. Hybrid-drive implosion system for ICF targets

    DOE Patents [OSTI]

    Mark, James W. (Danville, CA)

    1988-01-01

    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.

  13. Hybrid-drive implosion system for ICF targets

    DOE Patents [OSTI]

    Mark, J.W.K.

    1987-10-14

    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.

  14. @Why Physics Comprehensive Physics Major.

    E-Print Network [OSTI]

    Yoo, S. J. Ben

    @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

  15. Targeted polypeptide degradation

    DOE Patents [OSTI]

    Church, George M. (Brookline, MA); Janse, Daniel M. (Brookline, MA)

    2008-05-13

    This invention pertains to compositions, methods, cells and organisms useful for selectively localizing polypeptides to the proteasome for degradation. Therapeutic methods and pharmaceutical compositions for treating disorders associated with the expression and/or activity of a polypeptide by targeting these polypeptides for degradation, as well as methods for targeting therapeutic polypeptides for degradation and/or activating therapeutic polypeptides by degradation are provided. The invention provides methods for identifying compounds that mediate proteasome localization and/or polypeptide degradation. The invention also provides research tools for the study of protein function.

  16. Foam encapsulated targets

    DOE Patents [OSTI]

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

    1983-01-01

    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.

  17. Type-Based Termination, Inflationary Fixed-Points, and

    E-Print Network [OSTI]

    Abel, Andreas

    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

  18. On Plane Bipartite Graphs without Fixed Edges Khaled Salem*

    E-Print Network [OSTI]

    Klavzar, Sandi

    cycle. Randi [12, 13] used alternating cycles (or conjugated circuits) to estimate resonance energies face is an alternating cycle. Moreover, a polyhex fragment has no fixed edges if and only if the boundaries of its infinite face and the non-hexagonal finite faces are alternating cycles. These results

  19. Combination of Fixed and Mobile Cameras for Automatic Pedestrian Detection

    E-Print Network [OSTI]

    Bierlaire, Michel

    Combination of Fixed and Mobile Cameras for Automatic Pedestrian Detection A. Alahi M. Bierlaire, mu- rat.kunt@epfl.ch 1 #12;Abstract Pedestrian detection in the surroundings of a vehicle is highly desirable to avoid dangerous traffic situations. Typical vision-based pedestrian detection algorithms

  20. Experimental Cooperative Control of Fixed-Wing Unmanned Aerial Vehicles

    E-Print Network [OSTI]

    Pappas, George J.

    Experimental Cooperative Control of Fixed-Wing Unmanned Aerial Vehicles Selcuk Bayraktar, Georgios in the development of networks of multiple unmanned aerial vehicles (U.A.V.s), as aerial sensor networks size) aerial and space vehicles, which are frequently networked. This modern view of future aerospace

  1. Sailplane glide performance and control using fixed and articulating winglets 

    E-Print Network [OSTI]

    Colling, James David

    1995-01-01

    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...

  2. Basic Research Needs for High Energy Density Laboratory Physics

    National Nuclear Security Administration (NNSA)

    in ICF target physics is the demonstration of high-energy gain. For a viable fusion energy power plant, the product of the driver efficiency and the target gain 8 should exceed...

  3. Magnetized target fusion and fusion propulsion.

    SciTech Connect (OSTI)

    Kirkpatrick, R. C. (Ronald C.)

    2001-01-01

    Magnetized target fusion (MTF) is a thermonuclear fusion concept that is intermediate between the two mainline approaches, magnetic confinement and inertial confinement fusion (MCF and ICF). MTF incorporates some aspects of each and offers advantages over each of the mainline approaches. First, it provides a means of reducing the driver power requirements, thereby admitting a wider range of drivers than ICF. Second, the magnetic field is only used for insulation, not confinement, and the plasma is wall confined, so that plasma instabilities are traded in for hydrodynamic instabilities. However, the degree of compression required to reach fusion conditions is lower than for ICF, so that hydrodynamic instabilities are much less threatening. The standoff driver innovation proposes to dynamically form the target plasma and a gaseous shell that compresses and confines the target plasma. Therefore, fusion target fabrication is traded in for a multiplicity of plasma guns, which must work in synchrony. The standoff driver embodiment of MTF leads to a fusion propulsion system concept that is potentially compact and lightweight. We will discuss the underlying physics of MTF and some of the details of the fusion propulsion concept using the standoff driver approach. We discuss here the optimization of an MTF target design for space propulsion.

  4. Physics Potential of Solar Neutrino Experiments

    E-Print Network [OSTI]

    A. B. Balantekin; H. Yuksel

    2003-12-19

    We discuss the physics potential of the solar neutrino experiments i) To explore the parameter space of neutrino mass and mixings; ii) To probe the physics of the Sun; iii) To explore nuclear physics of the neutrino-target interactions. Examples are given for these three classes.

  5. 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

  6. A.G.Ramm, Inverse scattering problem with data at fixed energy and fixed incident direction, Nonlinear Analysis: Theory, methods and Applications, 69, N4, (2008), 1478-

    E-Print Network [OSTI]

    2008-01-01

    of q from the exact fixed-energy data, an error estimate for this method, and stability estimates for the recovery problem ([7]), as well as a method for a stable recovery of q from noisy fixed-energy data method for recovery of q from noisy 3D fixed-energy data. In this paper a new problem is studied

  7. A.G.Ramm, Inverse scattering problem with data at fixed energy and fixed incident direction, Nonlinear Analysis: Theory, methods and Applications, 69, N4, (2008), 1478

    E-Print Network [OSTI]

    2008-01-01

    scattering problem with fixed­energy data consists in finding a potential q(x) from the knowledge of A q ([4]), who also gave a method for recovery of q from the exact fixed­energy data, an error estimate of q from noisy fixed­energy data, and an error estimate for this method [5], [6], [7]. Until now

  8. 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]

    to the Department Head or Division Director to support continued work related to the project. If the end of a fixed-price14.6 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

  9. DEPARTMENT OF PHYSICS Physics 42200

    E-Print Network [OSTI]

    Brinkmann, Peter

    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

  10. DEPARTMENT OF PHYSICS Physics 32300

    E-Print Network [OSTI]

    Brinkmann, Peter

    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

  11. Solvent recovery targeting

    SciTech Connect (OSTI)

    Ahmad, B.S.; Barton, P.I.

    1999-02-01

    One of the environmental challenges faced by the pharmaceutical and specialty chemical industries is the widespread use of organic solvents. With a solvent-based chemistry, the solvent necessarily has to be separated from the product. Chemical species in waste-solvent streams typically form multicomponent azeotropic mixtures, and this often complicates separation and, hence, recovery of solvents. A design approach is presented whereby process modifications proposed by the engineer to reduce the formation of waste-solvent streams can be evaluated systematically. This approach, called solvent recovery targeting, exploits a recently developed algorithm for elucidating the separation alternatives achievable when applying batch distillation to homogeneous multicomponent mixtures. The approach places the composition of the waste-solvent mixture correctly in the relevant residue curve map and computes the maximum amount of pure material that can be recovered via batch distillation. Solvent recovery targeting is applied to two case studies derived from real industrial processes.

  12. Subatomic Physics

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

    P-25 Subatomic Physics We play a major role in large-scale scientific collaborations around the world, performing nuclear physics experiments that advance the understanding of the...

  13. 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 Center Home Page| Open Energy Information Serbia-Enhancing CapacityVectren)ModelTalbotts Ltd JumpJumpInformationTaosTarget

  14. Apparatus for forming targets

    DOE Patents [OSTI]

    Woerner, Robert L. (Livermore, CA)

    1980-01-01

    Apparatus and method for cryoinduced uniform deposition of cryogenic materials, such as deuterium-tritium (DT) mixtures, on the inner surface of hollow spherical members, such as inertially imploded targets. By vaporizing and quickly refreezing cryogenic materials contained within a hollow spherical member, a uniform layer of the materials is formed on the inner surface of the spherical member. Heating of the cryogenic material, located within a non-isothermal compact freezing cell, is accomplished by an electrical heat pulse, whereafter the material is quickly frozen forming a uniform layer on the inner surface of the spherical member. The method is not restricted to producing a frozen layer on only the inner surface of the innermost hollow member, but where multiple concentric hollow spheres are involved, such as in multiple shell targets for lasers, electron beams, etc., layers of cryogenic material may also be formed on the inner surface of intermediate or outer spherical members, thus providing the capability of forming targets having multiple concentric layers or shells of frozen DT.

  15. GRADUATE BOOKLET Physics / Applied Physics

    E-Print Network [OSTI]

    Rock, Chris

    GRADUATE BOOKLET Physics / Applied Physics This booklet contains rules, guidelines and general information about graduate studies in the Physics Department at Texas Tech University. It does not replace documents. Contents I. General Comments: Admission, general policies, deadlines, etc II. Minimum

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

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

    Deremble, Bruno; D'Andrea, Fabio; Ghil, Michael

    2009-10-27

    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 ensemblemore »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.« less

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

    SciTech Connect (OSTI)

    Deremble, Bruno [Laboratoire de Meteorologie Dynamique (CNRS and IPSL), Paris (France); D'Andrea, Fabio [Laboratoire de Meteorologie Dynamique (CNRS and IPSL), Paris (France); Ghil, Michael [Univ. of California, Los Angeles, CA (United Staes). Atmospheric and Oceanic Sciences and Inst. of Geophysics and Planetary Physics

    2009-10-27

    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.

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

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

    Deremble, Bruno [Laboratoire de Meteorologie Dynamique (CNRS and IPSL), Paris (France); D'Andrea, Fabio [Laboratoire de Meteorologie Dynamique (CNRS and IPSL), Paris (France); Ghil, Michael [Univ. of California, Los Angeles, CA (United Staes). Atmospheric and Oceanic Sciences and Inst. of Geophysics and Planetary Physics

    2009-01-01

    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.

  19. Modeling for Anaerobic Fixed-Bed Biofilm Reactors

    SciTech Connect (OSTI)

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

    1989-06-01

    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.

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

    E-Print Network [OSTI]

    Rouven Essig; Philip Schuster; Natalia Toro; Bogdan Wojtsekhowski

    2010-01-15

    We describe an experiment to search for a new vector boson A' with weak coupling alpha' > 6 x 10^{-8} alpha to electrons (alpha=e^2/4pi) in the mass range 65 MeV Spectrometer and the septum magnet in Hall A. With a ~1 month run, APEX will achieve very good sensitivity because the statistics of e+e- pairs will be ~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.

  1. Fixed target matrix for femtosecond time-resolved and in situ serial micro-crystallography

    SciTech Connect (OSTI)

    Mueller, C.; Marx, A.; Epp, S. W.; Zhong, Y.; Kuo, A.; Balo, A. R.; Soman, J.; Schotte, F.; Lemke, H. T.; Owen, R. L.; Pai, E. F.; Pearson, A. R.; Olson, J. S.; Anfinrud, P. A.; Ernst, O. P.; Miller, R. J. Dwayne

    2015-08-18

    We present a crystallography chip enabling in situ room temperature crystallography at microfocus synchrotron beamlines and X-ray free-electron laser (X-FEL) sources. Compared to other in situ approaches, we observe extremely low background and high diffraction data quality. The chip design is robust and allows fast and efficient loading of thousands of small crystals. The ability to load a large number of protein crystals, at room temperature and with high efficiency, into prescribed positions enables high throughput automated serial crystallography with microfocus synchrotron beamlines. In addition, we demonstrate the application of this chip for femtosecond time-resolved serial crystallography at the Linac Coherent Light Source (LCLS, Menlo Park, California, USA). As a result, the chip concept enables multiple images to be acquired from each crystal, allowing differential detection of changes in diffraction intensities in order to obtain high signal-to-noise and fully exploit the time resolution capabilities of XFELs.

  2. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HABFES OctoberEvanServices »First ObservationFast(ER1) TargetRL -

  3. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HABFES OctoberEvanServices »First ObservationFast(ER1) TargetRL - -

  4. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HABFES OctoberEvanServices »First ObservationFast(ER1) TargetRL - -

  5. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HABFES OctoberEvanServices »First ObservationFast(ER1) TargetRL - - -

  6. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid you not find whatGasEnergyfeature photoTheory05 Target 1 Flight Path90L2

  7. Target: Subpoena (2010-SE-2001)

    Broader source: Energy.gov [DOE]

    DOE issued a Subpoena for Information and Production of Documents to Target Corporation requesting information regarding the compliance of various torchieres Target has distributed in commerce in the U.S.

  8. THEORETICAL PHYSICS Faculty of Physics

    E-Print Network [OSTI]

    Pachucki, Krzysztof

    of Field Theory and Statistical Physics RG Division of General Relativity and Gravitation MP DivisionINSTITUTE OF THEORETICAL PHYSICS Faculty of Physics Warsaw University 1998-1999 Warsaw 2000 #12;INSTITUTE OF THEORETICAL PHYSICS Address: Hoza 69, PL-00 681 Warsaw, Poland Phone: (+48 22) 628 33 96 Fax

  9. SU-E-T-539: Fixed Versus Variable Optimization Points in Combined-Mode Modulated Arc Therapy Planning

    SciTech Connect (OSTI)

    Kainz, K; Prah, D; Ahunbay, E; Li, X

    2014-06-01

    Purpose: A novel modulated arc therapy technique, mARC, enables superposition of step-and-shoot IMRT segments upon a subset of the optimization points (OPs) of a continuous-arc delivery. We compare two approaches to mARC planning: one with the number of OPs fixed throughout optimization, and another where the planning system determines the number of OPs in the final plan, subject to an upper limit defined at the outset. Methods: Fixed-OP mARC planning was performed for representative cases using Panther v. 5.01 (Prowess, Inc.), while variable-OP mARC planning used Monaco v. 5.00 (Elekta, Inc.). All Monaco planning used an upper limit of 91 OPs; those OPs with minimal MU were removed during optimization. Plans were delivered, and delivery times recorded, on a Siemens Artiste accelerator using a flat 6MV beam with 300 MU/min rate. Dose distributions measured using ArcCheck (Sun Nuclear Corporation, Inc.) were compared with the plan calculation; the two were deemed consistent if they agreed to within 3.5% in absolute dose and 3.5 mm in distance-to-agreement among > 95% of the diodes within the direct beam. Results: Example cases included a prostate and a head-and-neck planned with a single arc and fraction doses of 1.8 and 2.0 Gy, respectively. Aside from slightly more uniform target dose for the variable-OP plans, the DVHs for the two techniques were similar. For the fixed-OP technique, the number of OPs was 38 and 39, and the delivery time was 228 and 259 seconds, respectively, for the prostate and head-and-neck cases. For the final variable-OP plans, there were 91 and 85 OPs, and the delivery time was 296 and 440 seconds, correspondingly longer than for fixed-OP. Conclusion: For mARC, both the fixed-OP and variable-OP approaches produced comparable-quality plans whose delivery was successfully verified. To keep delivery time per fraction short, a fixed-OP planning approach is preferred.

  10. Liner/target/CMU cassette design and fabrication

    SciTech Connect (OSTI)

    Griego, Jeffrey Randall

    2011-01-07

    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.

  11. Charm Physics at Fermilab E791

    E-Print Network [OSTI]

    Fermilab E791 Collaboration; D. J. Summers

    2000-09-06

    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.

  12. Linear Collider Physics Resource Book Snowmass 2001

    SciTech Connect (OSTI)

    Ronan (Editor), M.T.

    2001-06-01

    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.

  13. Proceedings of the Tungsten Workshop for Hard Target Weapons Program

    SciTech Connect (OSTI)

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

    1995-06-01

    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.

  14. HIGH-ENERGY-PHYSICS EXPERIMENTS WITH POLARIZED TARGETS

    E-Print Network [OSTI]

    Chamberlain, Owen

    2008-01-01

    Apparatus of the Saclay-Orsay-Pisa collaboration for meas ~line), of the Saclay-Orsay-Pisa collaboration. Fig. 27.from the Saclay-Orsay-Pisa collaboration. t .is the square

  15. Evolutionary Laws, Initial Conditions, and Gauge Fixing in Constrained Systems

    E-Print Network [OSTI]

    J M Pons; L C Shepley

    1995-08-25

    We describe in detail how to eliminate nonphysical degrees of freedom in the Lagrangian and Hamiltonian formulations of a constrained system. Two important and distinct steps in our method are the fixing of ambiguities in the dynamics and the determination of inequivalent initial data. The Lagrangian discussion is novel, and a proof is given that the final number of degrees of freedom in the two formulations agrees. We give applications to reparameterization invariant theories, where we prove that one of the constraints must be explicitly time dependent. We illustrate our procedure with the examples of trajectories in spacetime and with spatially homogeneous cosmological models. Finally, we comment briefly on Dirac's extended Hamiltonian technique.

  16. Laws restricting price-fixing and their enforcements 

    E-Print Network [OSTI]

    Johnston, Lon Don

    1962-01-01

    'aI;eescsesfh'k. . credo, yrXaa, ~ss, aoasrox cear @abide ebiHeias, ess. , alee greasily tha p'sxf'oxaaaca of vaxioui fanetioaa chat a frao aiiLsxpxisa mast':, acccep&sh. assaxiisg 'pxofit aagimisatioa as tha goal af ths ia8ivi&uik ox' firm~ it ia readily apparel...'elojsd. co. the "sncenb ' ' ' thbt ' in". Che eighteenth"-:CS4t'orf' egreemgint'p SCIOag, 'Sillerg 'tc 16@t. entpnt, ' divide Rect@Ca'. or' et~Be . fix prices were'conspiracies kn-rsptrsint'of credo for vbicb ia)ured''parties could claim dcnsgesi 1]ader...

  17. 15 Squares mod p Fix a prime p.

    E-Print Network [OSTI]

    Ramakrishnan, Dinakar

    15 Squares mod p Fix a prime p. Basic question: Given a, how can we determine if #b # Z such that a # b 2 (mod p)? Trivial case if p|a, take b # 0. So from now on take (a, p) = 1. p=3 p=5 p=7 x x 2 x x 2 x x 2 1 1 1 1 1 1 2 1 2 ­1 2 4 3 ­1 4 2 ­1=4 1 5 4 6 1 1 # d p 1, 4 as mod 5 1, 2, 4 as mod p 2

  18. 15 Squares mod p Fix a prime p.

    E-Print Network [OSTI]

    Ramakrishnan, Dinakar

    15 Squares mod p Fix a prime p. Basic question: Given a, how can we determine if b Z such that a b2 (mod p)? Trivial case if p|a, take b 0. So from now on take (a, p) = 1. p=3 p=5 p=7 x x2 x x2 x x2 1 1 1 1 1 1 2 1 2 -1 2 4 3 -1 4 2 -1=4 1 5 4 6 1 1 dp 1, 4 as mod 5 1, 2, 4 as mod p 2 2, 3 3

  19. Target detection portal

    DOE Patents [OSTI]

    Linker, Kevin L. (Albuquerque, NM); Brusseau, Charles A. (Tijeras, NM)

    2002-01-01

    A portal apparatus for screening persons or objects for the presence of trace amounts of target substances such as explosives, narcotics, radioactive materials, and certain chemical materials. The portal apparatus can have a one-sided exhaust for an exhaust stream, an interior wall configuration with a concave-shape across a horizontal cross-section for each of two facing sides to result in improved airflow and reduced washout relative to a configuration with substantially flat parallel sides; air curtains to reduce washout; ionizing sprays to collect particles bound by static forces, as well as gas jet nozzles to dislodge particles bound by adhesion to the screened person or object. The portal apparatus can be included in a detection system with a preconcentrator and a detector.

  20. PDFs for nuclear targets

    E-Print Network [OSTI]

    Karol Kovarik

    2010-06-25

    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.

  1. T-712: Red Hat Enterprise MRG Grid 2.0 security, bug fix and...

    Office of Environmental Management (EM)

    12: Red Hat Enterprise MRG Grid 2.0 security, bug fix and enhancement update T-712: Red Hat Enterprise MRG Grid 2.0 security, bug fix and enhancement update September 8, 2011 -...

  2. A parabola is the set of all points in a plane equidistant from a fixed ...

    E-Print Network [OSTI]

    MA 154 Lesson 25 Delworth. Section 11.2 Parabolas. A parabola is the set of all points in a plane equidistant from a fixed point F (the focus) and a fixed line l ...

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

    SciTech Connect (OSTI)

    MEZNARICH, H.K.

    2000-02-01

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

  4. Fixed and Random Effects in Panel Data Using Structural Equations Models

    E-Print Network [OSTI]

    Bollen, Kenneth A.; Brand, Jennie E.

    2008-01-01

    1997) and a SAS publication by Allison (2005) discuss SEM2005. Fixed Effects Regression Methods for Longitudinal Data Using SAS.

  5. Study of the thermal abelian monopoles with proper gauge fixing

    E-Print Network [OSTI]

    V. G. Bornyakov; V. V. Braguta

    2011-10-28

    The properties of the thermal abelian monopoles are studied in the deconfinement phase of the SU(2) gluodynamics. To remove effects of Gribov copies the simulated annealing algorithm is applied to fix the maximally abelian gauge. Computing the density of the thermal abelian monopoles in the temperature range between 1.5T_c and 6.9T_c we show, by comparison with earlier results, that the Gribov copies effects might be as high as 20% making proper gauge fixing mandatory. We find that in the infinite temperature limit the monopole density converges to its value in 3-dimensional theory. To study the interaction between monopoles we calculate the monopole-monopole and monopole-antimonopole correlators at different temperatures in the region (1.5T_c, 6.9T_c). Using the result of this study we determine the screening mass, monopole-monopole coupling constant, monopole size and monopole mass. In addition we check the continuum limit of our results.

  6. Inverse scattering with fixed-energy data Mathematics Department, Kansas State University,

    E-Print Network [OSTI]

    Inverse scattering with fixed-energy data A.G. Ramm Mathematics Department, Kansas State justified method for solving the three-dimensional inverse scattering problem with fixed-energy data problem with fixed-energy data is described for the exact data and for the noisy data, and the error

  7. Physics results from dynamical overlap fermion simulations

    E-Print Network [OSTI]

    Shoji Hashimoto

    2008-11-08

    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.

  8. Multiple target laser ablation system

    DOE Patents [OSTI]

    Mashburn, Douglas N. (Knoxville, TN)

    1996-01-01

    A laser ablation apparatus and method are provided in which multiple targets consisting of material to be ablated are mounted on a movable support. The material transfer rate is determined for each target material, and these rates are stored in a controller. A position detector determines which target material is in a position to be ablated, and then the controller controls the beam trigger timing and energy level to achieve a desired proportion of each constituent material in the resulting film.

  9. Multiple target laser ablation system

    DOE Patents [OSTI]

    Mashburn, D.N.

    1996-01-09

    A laser ablation apparatus and method are provided in which multiple targets consisting of material to be ablated are mounted on a movable support. The material transfer rate is determined for each target material, and these rates are stored in a controller. A position detector determines which target material is in a position to be ablated, and then the controller controls the beam trigger timing and energy level to achieve a desired proportion of each constituent material in the resulting film. 3 figs.

  10. GLOBAL GLACIAL ISOSTATIC ADJUSTMENT: TARGET FIELDS FOR SPACE GEODESY

    E-Print Network [OSTI]

    Peltier, W. Richard

    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

  11. FY11 Joint Research Target: Status and Planning on

    E-Print Network [OSTI]

    Princeton Plasma Physics Laboratory

    FY11 Joint Research Target: Status and Planning on Alcator C-Mod Jerry Hughes Including slides from C-Mod Activity Q1 Develop a preliminary research plan coordinated among the three facilities, delineating the planned experiments aimed at developing understanding of the physics mechanisms responsible

  12. Analysis ? Targeting Zero Net Energy

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

    Analysis - Targeting Zero Net Energy 2014 Building Technologies Office Peer Review Scott Horowitz, scott.horowitz@nrel.gov NREL Project Summary Timeline: Start date: 2010 Planned...

  13. A Fixed Gap APPLE II Undulator for SLS

    SciTech Connect (OSTI)

    Schmidt, T.; Imhof, A.; Ingold, G.; Jakob, B.; Vollenweider, C.

    2007-01-19

    To vary the polarization vector of an APPLE II undulator continuously from 0 - 180 deg., all four magnet arrays need to be movable. Following the adjustable-phase undulator approach by R. Carr, a 3.4 m long fixed gap undulator for SLS with a gap of 11.6 mm has been constructed. It will be installed in fall 2006. The gap drive is replaced by a pair-wise shift of the magnet arrays to change the energy, while the polarization is changed by shifts of diagonal arrays. The high injection efficiency and standard operation top-up mode at the SLS allows this simplified undulator design. The design as well as the operational aspects will be discussed.

  14. Grate assembly for fixed-bed coal gasifier

    DOE Patents [OSTI]

    Notestein, John E. (Morgantown, WV)

    1993-01-01

    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.

  15. Zero modes, gauge fixing, monodromies, $?$-functions and all that

    E-Print Network [OSTI]

    A. O. Barvinsky; D. V. Nesterov

    2012-04-15

    We discuss various issues associated with the calculation of the reduced functional determinant of a special second order differential operator $\\boldmath${F}$ =-d^2/d\\tau^2+\\ddot g/g$, $\\ddot g\\equiv d^2g/d\\tau^2$, with a generic function $g(\\tau)$, subject to periodic and Dirichlet boundary conditions. These issues include the gauge-fixed path integral representation of this determinant, the monodromy method of its calculation and the combination of the heat kernel and zeta-function technique for the derivation of its period dependence. Motivations for this particular problem, coming from applications in quantum cosmology, are also briefly discussed. They include the problem of microcanonical initial conditions in cosmology driven by a conformal field theory, cosmological constant and cosmic microwave background problems.

  16. Plasma Physics

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

    state. Formed at high temperatures, plasmas consist of freely moving ions and free electrons. They are often called the "fourth state of matter" because their unique physical...

  17. Theoretical Physics

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

    HEP Theoretical Physics Understanding discoveries at the Energy, Intensity, and Cosmic Frontiers Get Expertise Rajan Gupta (505) 667-7664 Email Bruce Carlsten (505) 667-5657 Email...

  18. Plasma Physics

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

    4 Plasma Physics By leveraging plasma under extreme conditions, we concentrate on solving critical scientific challenges such as detecting smuggled nuclear materials, advancing...

  19. Target R & D LBNE Collaboration Meeting

    E-Print Network [OSTI]

    McDonald, Kirk

    are not planning on having an integrated target / horn 1 · Will of course change if appropriate · The R&D effort Hall utilities) David Hickson (Target Hall utilities) Pat Hurh (Target technical components Tariq (Target pile, remote handling) Karl Williams (Target Hall utilities) Tim Wyman (Target Hall

  20. Proceedings of the twelfth target fabrication specialists` meeting

    SciTech Connect (OSTI)

    1999-04-01

    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.

  1. Targeted Specular Photons Michelle Laprade

    E-Print Network [OSTI]

    Montréal, Université de

    Targeted Specular Photons Michelle Laprade Département d'Informatique et de Recherche in the resulting image which are not captured using traditional photon map- ping algorithms. This method uses a separate group of photons ­ targeted specular photons ­ which are shot specifically towards

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

    E-Print Network [OSTI]

    Hespanha, João Pedro

    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-wing aircraft equipped with gimbaled cameras and must coordinate their control actions so that at least one UAV

  3. Physics & Astronomy Degree options

    E-Print Network [OSTI]

    Brierley, Andrew

    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

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

    SciTech Connect (OSTI)

    Thayer, K.J.

    1989-08-01

    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.

  5. DEPARTMENT OF PHYSICS Physics 35400

    E-Print Network [OSTI]

    Lombardi, John R.

    , electromagnetic waves in vacuum and in matter, guided waves ­ transmission lines and waveguides, electromagnetic-varying sources 7. calculate the electromagnetic radiation fields and power emitted for electric dipole sources 8DEPARTMENT OF PHYSICS Syllabus Physics 35400 Electricity and Magnetism II Designation

  6. Flame quality monitor system for fixed firing rate oil burners

    DOE Patents [OSTI]

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

    1992-01-01

    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.

  7. Fixed bed trapping for gaseous fluoride effluent control

    SciTech Connect (OSTI)

    Otey, M.G.; Bayne, C.K.

    1980-06-14

    To comply with future air quality standards for gaseous fluoride emissions at the PGDP, studies are being made to evaluate the most feasible and efficient method of trapping fluorides from the effluents of the different processes. Although this work is in direct support of environmental projects, its results are applicable in other areas. Throughout the diffusion plants there are several areas where fluorides, either single or multiple species, are controlled and/or processed. The solid sorbent studies represent new, promising technology which could have significant impact on the gaseous diffusion plants. Scoping studies of solid sorbents and reaction conditions have been conducted. In a series of statistically designed experiments, the effects of total gas flow, temperature, and fluoride gas flow were studied for eight dry chemicals in a 1-in. diameter fixed bed designed to remove three separate fluoride gas species (hydrogen fluoride (HF), fluorine (F/sub 2/), and chlorine trifluoride (ClF/sub 3/)) from an air stream. The trapping materials selected for the test include two brands of four different material types: soda lime, oolitic calcium carbonate (CaCO/sub 3/), calcium oxide (CaO), and activated alumina (Al/sub 2/O/sub 3/). Additionally, loading factors and material utilization were determined to allow an economic comparison to be made between bed materials.

  8. Ash level meter for a fixed-bed coal gasifier

    DOE Patents [OSTI]

    Fasching, George E. (Morgantown, WV)

    1984-01-01

    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.

  9. Isolated thermocouple amplifier system for stirred fixed-bed gasifier

    DOE Patents [OSTI]

    Fasching, George E. (Morgantown, WV)

    1992-01-01

    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.

  10. Fixed-bed bioreactor system for the microbial solubilization of coal

    DOE Patents [OSTI]

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

    1987-09-14

    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.

  11. Impact of Fixed Exterior Shading on Daylighting: A Case Study of the David Brower Center

    E-Print Network [OSTI]

    Zelenay, Krystyna

    2011-01-01

    shading type Fixed exterior white-painted aluminum louvers on 2nd and 3rd floors, awning at ground floor, photovoltaic

  12. EVOLUTIONARY AND GEOLOGIC CONSEQUENCES OF ORGANIC CARBON FIXING IN THE PRIMITIVE ANOXIC OCEAN

    E-Print Network [OSTI]

    Berry, W.B.N.

    2013-01-01

    fix carbon dioxide. The free source to energy relationshipsfree energy derived from use of hydrogen chemosynthesis sulfide as an energy source

  13. SF6432-NI Fixed Price Contracts with the Newly Independent States...

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

    CORPORATION SF 6432-NI (112015) SECTION II STANDARD TERMS AND CONDITIONS FOR FIXED PRICE CONTRACTS WITH THE NEWLY INDEPENDENT STATES OF THE FORMER SOVIET UNION THE FOLLOWING...

  14. Investigation of the June 29, 2012, Fall from a Fixed Ladder...

    Energy Savers [EERE]

    Brookhaven National Laboratory August 2012 On June 29, 2012, at approximately 2:35 p.m., a Brookhaven Sciences Associates maintenance metals worker was climbing a fixed...

  15. 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...

  16. High Power Target Design and Operational Considerations

    E-Print Network [OSTI]

    McDonald, Kirk

    of Energy SNS Target Systems and Status Update Target R&D Program Has Addressed Key Design and Operational-Battelle for the U.S. Department of Energy SNS Target Systems and Status Update Mercury target development activities.S. Department of Energy SNS Target Systems and Status Update · Peak energy deposition in Hg for a single pulse

  17. Targets for Multimegawatt Proton Beams %%%%%%%%%%%%%%%&'())0

    E-Print Network [OSTI]

    McDonald, Kirk

    , 2003 http://puhep1.princeton.edu/mumu/target/ Sketches of a 4-MW Target Station Kirk T. Mc and granular targets. · Liquid target studies. · Continuing R&D (including targets for linear colliders). Kirk accelerator neutrino beams, where targetry is a major challenge. Kirk T. McDonald Fermilab Long Range Planning

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

    SciTech Connect (OSTI)

    Jenkins, Charles M; Godang, Romulus

    2013-06-25

    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.

  19. Physics Based on Physical Monism

    E-Print Network [OSTI]

    Seong-Dong Kim

    2006-03-22

    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.

  20. RELIABILITY BASED DESIGN OF FIXED FOUNDATION WIND TURBINES

    SciTech Connect (OSTI)

    Nichols, R.

    2013-10-14

    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.

  1. Metrology Challenges for High Energy Density Science Target Manufacture

    SciTech Connect (OSTI)

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

    2009-02-19

    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.

  2. Electron Scattering with Polarized Targets at TESLA

    E-Print Network [OSTI]

    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

    2000-11-24

    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.

  3. Targets and methods for target preparation for radionuclide production

    DOE Patents [OSTI]

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

    2012-10-16

    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.

  4. Physics & Astronomy Degree options

    E-Print Network [OSTI]

    Brierley, Andrew

    138 Physics & Astronomy Degree options BSc (Single Honours Degrees) Astrophysics Physics MPhys (Single Honours Degrees) Astrophysics Physics Theoretical Physics BSc (Joint Honours Degrees) Physics combinations is under review. MPhys (Joint Honours Degree) Theoretical Physics and Mathematics MSci (Joint

  5. Monotonic Target Assignment for Robotic Networks

    E-Print Network [OSTI]

    Smith, Stephen L; Bullo, Francesco

    2009-01-01

    Target assignment for robotic networks: Worst-case andTARGET ASSIGNMENT FOR ROBOTIC NETWORKS [6] H. W. Kuhn, “TheTarget Assignment for Robotic Networks Stephen L. Smith,

  6. Review of Particle Physics

    E-Print Network [OSTI]

    Nakamura, Kenzo

    2010-01-01

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

  7. REVIEW OF PARTICLE PHYSICS

    E-Print Network [OSTI]

    Beringer, Juerg

    2013-01-01

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

  8. SF 6432-FE Fixed Price Contracts Outside the US

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) byMultidayAlumni > The EnergyRyanPhysics LabSAP7/31/13 Page 1

  9. SF 6432-FE Fixed Price Contracts Outside the US

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) byMultidayAlumni > The EnergyRyanPhysics LabSAP7/31/13 Page 1FE

  10. Geometric structures associated to triangulations as fixed point sets of involutions

    E-Print Network [OSTI]

    Falbel, Elisha

    Geometric structures associated to triangulations as fixed point sets of involutions E. Falbel-mail: falbelmath.jussieu.fr November 14, 2006 Abstract We establish that hyperbolic structures and spherical CR structures on a three dimensional manifold are contained in fixed point sets of a larger class of structures

  11. Geometric structures associated to triangulations as fixed point sets of involutions

    E-Print Network [OSTI]

    Falbel, Elisha

    Geometric structures associated to triangulations as fixed point sets of involutions E. Falbel­mail: falbelmath.jussieu.fr March 31, 2009 Abstract We establish that hyperbolic structures and spherical CR structures on a three dimensional manifold are contained in fixed point sets of a larger class of structures

  12. Formulas for phase recovering from phaseless scattering data at fixed frequency

    E-Print Network [OSTI]

    Roman Novikov

    2015-02-14

    We consider quantum and acoustic wave propagation at fixed frequency for compactly supported scatterers in dimension $d\\ge 2$. In these framework we give explicit formulas for phase recovering from appropriate phaseless scattering data. As a corollary, we give global uniqueness results for quantum and acoustic inverse scattering at fixed frequency without phase information.

  13. Classifying Field Crash Reports for Fixing Bugs : A Case Study of Mozilla Firefox

    E-Print Network [OSTI]

    Zou, Ying

    Classifying Field Crash Reports for Fixing Bugs : A Case Study of Mozilla Firefox Tejinder Dhaliwal collection of field crash-reports which record the stack traces and other runtime information when crashes occur. Analysis of field crash-reports can help developers to locate and fix bugs. However, the amount

  14. A quantitative version of Kirk's fixed point theorem for asymptotic contractions

    E-Print Network [OSTI]

    Gerhardy, Philipp

    A quantitative version of Kirk's fixed point theorem for asymptotic contractions Philipp Gerhardy Abstract In [J.Math.Anal.App.277(2003) 645-650], W.A.Kirk introduced the notion of asymp- totic Introduction In [3], W.A. Kirk proved a fixed-point theorem for so-called asymptotic con- tractions on complete

  15. A quantitative version of Kirk's fixed point theorem for asymptotic contractions

    E-Print Network [OSTI]

    Gerhardy, Philipp

    A quantitative version of Kirk's fixed point theorem for asymptotic contractions Philipp Gerhardy Abstract In [J.Math.Anal.App.277(2003) 645­650], W.A.Kirk introduced the notion of asymp­ totic Introduction In [3], W.A. Kirk proved a fixed­point theorem for so­called asymptotic con­ tractions on complete

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

    E-Print Network [OSTI]

    Pota, Himanshu Roy

    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

  17. A FIRST PRINCIPLES BASED METHOD FOR THE PREDICTION OF LOADING OVER FIXED AND ROTARY WING GEOMETRIES

    E-Print Network [OSTI]

    A FIRST PRINCIPLES BASED METHOD FOR THE PREDICTION OF LOADING OVER FIXED AND ROTARY WING GEOMETRIES Lakshmi N. Sankar and Mert Berkman School of Aerospace Engineering Georgia Institute of Technology-principles based techniques for the prediction of fixed and rotary wing wake geometry are described

  18. 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

  19. Arbitrage With Fixed Costs" and Interest Rate Models Elys JOUINI Clotilde NAPPy

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Arbitrage With Fixed Costs" and Interest Rate Models Elyès JOUINI Clotilde NAPPy June 26, 2007 Congress participants and in particular D. Feldman. 1 #12;Arbitrage With "Fixed Costs" and Interest Rate Models Abstract In this paper, we study securities market models with "...xed costs." We characterize

  20. When Auction Meets Fixed Price: A Theoretical and Empirical Examination of Buy-it-Now

    E-Print Network [OSTI]

    Faloutsos, Christos

    such as the customer's cost of participating in the auction, the seller's reserve price, and the number of potential design. Economists advocate the efficiency of auctions over fixed price markets when auction costsWhen Auction Meets Fixed Price: A Theoretical and Empirical Examination of Buy-it-Now Auctions Xin

  1. Physics | More Science | ORNL

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

    Physics ORNL Physics Environment Safety and Health More Science Home | Science & Discovery | More Science | Physics SHARE Physics Bottom view of the 25 million volt tandem...

  2. Compulsory Elective Theoretical Physics

    E-Print Network [OSTI]

    Dutz, Hartmut

    Aug Sep Compulsory Elective Theoretical Physics (physics606 or - if done previously - 1 module out of physics751, physics754, physics755, physics760, physics7501) 7 cp Specialization (at least 24 cp out of physics61a, -61b, -61c and/or physics62a, -62b, -62c) 24 cp Elective Advanced Lectures (at least 18 cp out

  3. The Advantages of Fixed Facilities in Characterizing TRU Wastes

    SciTech Connect (OSTI)

    FRENCH, M.S.

    2000-02-08

    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.

  4. Transmission Line MTF: Magnetized Target Fusion

    E-Print Network [OSTI]

    Transmission Line MTF: Magnetized Target Fusion Initial target: preheated & magnetized Subsequent for the FRC. Abstract Block Diagram theta coil transmission line Bias cap. bank maincapacitor inductor PI cap

  5. 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...

  6. 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...

  7. Roll-up of validation results to a target application.

    SciTech Connect (OSTI)

    Hills, Richard Guy

    2013-09-01

    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.

  8. Planetary 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid youOxygen Generation | Center for GasPhysics Physics PrintPicture

  9. Engineering Task Plan for Development and Fabrication and Deployment of Nested Fixed Depth Fluidic Sampling and At Tank Analysis Systems

    SciTech Connect (OSTI)

    BOGER, R.M.

    2000-10-30

    This engineering task plan identifies the resources, responsibilities, and schedules for the development and deployment of a mobile, variable depth sampling system and an at-tank analysis system. The mobile, variable depth sampling system concept was developed after a cost assessment indicated a high cost for multiple deployments of the nested, fixed-depth sampling system. The sampling will provide double-shell tank (DST) staging tank waste samples for assuring the readiness of the waste for shipment to the LAW/HLW plant for treatment and immobilization. The at-tank analysis system will provide ''real-time'' assessments of the samples' chemical and physical properties. These systems support the Hanford Phase 1B vitrification project.

  10. Radioactive targets for neutron-induced cross section measurements

    SciTech Connect (OSTI)

    Kronenberg, A. (Andreas); Bond, E. M. (Evelyn M.); Glover, S. E. (Samuel E.); Rundberg, R. S. (Robert S.); Vieira, D. J. (David J.); Esch, E. I. (Ernst-Ingo); Reifarth, R. (Rene); Ullmann, J. L. (John L.); Haight, Robert C.; Rochmann, D. (Dimitri)

    2004-01-01

    Measurements using radioactive targets are important for the determination of key reaction path ways associated with the synthesis of the elements in nuclear astrophysics (sprocess), advanced fuel cycle initiative (transmutation of radioactive waste), and stockpile stewardship. High precision capture cross-section measurements are needed to interpret observations, predict elemental or isotopical ratios, and unobserved abundances. There are two new detector systems that are presently being commissioned at Los Alamos National Laboratory for very precise measurements of (n,{gamma}) and (n,f) cross-sections using small quantities of radioactive samples. DANCE (Detector for Advanced Neutron-Capture Experiments), a 4 {pi} gamma array made up of 160 BaF{sub 2} detectors, is designed to measure neutron capture cross-sections of unstable nuclei in the low-energy range (thermal to {approx}500 keV). The high granularity and high detection efficiency of DANCE, combined with the high TOF-neutron flux available at the Lujan Center provides a versatile tool for measuring many important cross section data using radioactive and isotopically enriched targets of about 1 milligram. Another powerful instrument is the Lead-slowing down spectrometer (LSDS), which will enable the measurement of neutron-induced fission cross-section of U-235m and other short-lived actinides in a energy range from 1-200 keV with sample sizes down to 10 nanograms. Due to the short half-life of the U-235m isomer (T{sub 1/2} = 26 minutes), the samples must be rapidly and repeatedly extracted from its {sup 239}Pu parent. Since {sup 239}Pu is itself highly fissile, the separation must not only be rapid, but must also be of very high purity (the Pu must be removed from the U with a decontamination factor >10{sup 12}). Once extracted and purified, the {sup 235m}U isomer would be electrodeposited on solar cells as a fission detector and placed within the LSDS for direct (n,f) cross section measurements. The production of radioactive targets of a few milligrams will be described as well as the containment for safe handling of these targets at the Lujan Center at LANSCE. To avoid any contamination, the targets are electrochemically fixed onto thin Ti foils and two foils are placed back to back to contain the radioactive material within. This target sandwich is placed in a cylinder made of aluminum with thin translucent windows made of Kapton. Actinides targets, such as {sup 234,235,236,238}U, {sup 237}Np, and {sup 239}Pu are prepared by electrodeposition or molecular plating techniques. Target thicknesses of 1-2 mg/cm{sup 2} with sizes of 1 cm{sup 2} or more have been made. Other targets will be fabricated from separation of irradiated isotopically enriched targets, such as {sup 155}Eu from {sup 154}Sm,{sup 171}Tm from {sup 170}Er, and {sup 147}Pm from {sup 146}Nd, which has been irradiated in the high flux reactor at ILL, Grenoble. A radioactive sample isotope separator (RSIS) is in the process of being commissioned for the preparation of other radioactive targets. A brief summary of these experiments and the radioactive target preparation technique will be given.

  11. Physics 4810 / 7810 Teaching and Learning Physics

    E-Print Network [OSTI]

    Maryland at College Park, University of

    Physics 4810 / 7810 Teaching and Learning Physics Fall 2008 Finkelstein A course on how people learn and understand key concepts in physics. Readings in physics, physics education research, education. Useful for all students, especially for those interested in physics, teaching and education research

  12. PHYSICS, B.S. BIOMEDICAL PHYSICS (BIMD)

    E-Print Network [OSTI]

    Hamburger, Peter

    PHYSICS, B.S. BIOMEDICAL PHYSICS (BIMD) (Fall 2015-Summer 2016) IPFW Residency Requirements ______ 3 PHYS 37000 Biomedical Physics Seminar ______ 3 PHYS 41800 Thermal Physics ______ 3 PHYS 44200): ______ ______ ______ ______ ______ ______ #12;PHYSICS, B.S. PLAN--BIOMEDICAL PHYSICS (BIMD) (Fall 2015-Summer 2016) Term: Year: 2015 Term: Year

  13. Physical Protection

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

    2009-07-23

    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.

  14. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With U.S. Coal StocksSuppliers Tag:TakeSeptember 13,Tara

  15. Mercury Intense Target (MERIT) Update

    E-Print Network [OSTI]

    McDonald, Kirk

    requirement for the system to deliver a 20 m/s jet - Two hydraulic cylinders drive a Hg cylinder - Stainless with Airline Hydraulics Co. today!) (2) Target Delivery System - Consists of primary and secondary containments, unconstrained jet of Hg in 1-atmosphere of air, into 15 Tesla field (Vacuum Is Under Review) #12;8 OAK RIDGE

  16. Mathematics and Physics

    E-Print Network [OSTI]

    $author.value

    Associate Professor of Mathematics and Physics Website: [Webpage] [Bio] ... Research Interests: mathematical physics, condensed matter theory ...

  17. Operational experience using the novel FixCup collecting main valve

    SciTech Connect (OSTI)

    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)

    1996-12-31

    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.

  18. High Energy Physics and Nuclear Physics Network Requirements

    E-Print Network [OSTI]

    Dart, Eli

    2014-01-01

    High Energy Physics and Nuclear Physics Network RequirementsCalifornia. High Energy Physics and Nuclear Physics Networkof High Energy Physics and Nuclear Physics, DOE Office of

  19. Physical Protection

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

    2005-08-26

    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

  20. Physical Protection

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

    2005-08-26

    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.

  1. Multishell inertial confinement fusion target

    DOE Patents [OSTI]

    Holland, James R. (Butler, PA); Del Vecchio, Robert M. (Vandergrift, PA)

    1984-01-01

    A method of fabricating multishell fuel targets for inertial confinement fusion usage. Sacrificial hemispherical molds encapsulate a concentric fuel pellet which is positioned by fiber nets stretched tautly across each hemispherical mold section. The fiber ends of the net protrude outwardly beyond the mold surfaces. The joint between the sacrificial hemispheres is smoothed. A ceramic or glass cover is then deposited about the finished mold surfaces to produce an inner spherical surface having continuously smooth surface configuration. The sacrificial mold is removed by gaseous reaction accomplished through the porous ceramic cover prior to enclosing of the outer sphere by addition of an outer coating. The multishell target comprises the inner fuel pellet concentrically arranged within a surrounding coated cover or shell by fiber nets imbedded within the cover material.

  2. Multishell inertial confinement fusion target

    DOE Patents [OSTI]

    Holland, James R. (Butler, PA); Del Vecchio, Robert M. (Vandergrift, PA)

    1987-01-01

    A method of fabricating multishell fuel targets for inertial confinement fusion usage. Sacrificial hemispherical molds encapsulate a concentric fuel pellet which is positioned by fiber nets stretched tautly across each hemispherical mold section. The fiber ends of the net protrude outwardly beyond the mold surfaces. The joint between the sacrificial hemispheres is smoothed. A ceramic or glass cover is then deposited about the finished mold surfaces to produce an inner spherical surface having continuously smooth surface configuration. The sacrificial mold is removed by gaseous reactions accomplished through the porous ceramic cover prior to enclosing of the outer sphere by addition of an outer coating. The multishell target comprises the inner fuel pellet concentrically arranged within a surrounding coated cover or shell by fiber nets imbedded within the cover material.

  3. The Quick Fix: Napping | Living Healthy | Reader's Digest http://www.rd.com.edgekey.net/living-healthy/the-quick-fix-napping-slee... 1 of 3 6/5/2008 5:17 PM

    E-Print Network [OSTI]

    Mednick, Sara C.

    The Quick Fix: Napping | Living Healthy | Reader's Digest http://www.rd.com Make Your Mark #12;The Quick Fix: Napping | Living Healthy | Reader's Digest http://www.rd.com Text SizeBookmark Yahoo! Buzz #12;The Quick Fix: Napping | Living Healthy | Reader's Digest http://www

  4. Physics 3343: Modern Physics Spring 2013

    E-Print Network [OSTI]

    Diestel, Geoff

    Physics 3343: Modern Physics Spring 2013 Professor: Dr. Daniel K. Marble Office: SCI 213E Telephone: Science 232 Textbooks: Required: 1) Modern Physics 3rd Edition by Serway, Moses, and Moyer 2) Schaum's Outline Series: Modern Physics by Gautreau and Savin Recommended: 1) Quantum Physics of Atoms, Atoms

  5. School of Physics & Astronomy Physics Colloquium

    E-Print Network [OSTI]

    Richmond, Michael W.

    School of Physics & Astronomy Physics Colloquium Abstract: Physics degree holders are among and Technology employers know that with a physics training, a poten- tial hire has acquired a broad problem. Therefore it's no surprise that the majority of physics graduates find employment in private

  6. Physics 480 Introduction to Solid State Physics

    E-Print Network [OSTI]

    Kioussis, Nicholas

    Physics 480 Introduction to Solid State Physics Spring 2012 Logistics Lecture Room: 1100 (Live Oak://www.csun.edu/~nkioussi Prerequisites Quantum Mechanics or Modern Physics at 375 level Textbook Introduction to Solid State Physics, Charles Kittel, Wiley, 8th Edition Reference: Neil W. Ashcroft and N. David Mermin, Solid State Physics

  7. PHYSICS OF BURNING PHYSICS INACCESSIBLE TO

    E-Print Network [OSTI]

    ;OUTLINE · Introduction · Three Classes of Burning Plasma Physics inaccessable to contemporary tokamak of inaccessable burning plasma physics · Conclusions FIRE Workshop 2 May 2000 #12;INTRODUCTION · A fusion reactorPHYSICS OF BURNING PLASMAS: PHYSICS INACCESSIBLE TO PRESENT FACILITIES FIRE Physics Workshop May

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

    SciTech Connect (OSTI)

    Ohshita, Stephanie; Price, Lynn

    2011-03-21

    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.

  9. Numerical Simulation of Interaction of Hypervelocity Particle Stream with a Target

    SciTech Connect (OSTI)

    Lomov, I; Liu, B; Georgevich, V; Antoun, T

    2007-07-31

    We present results of direct numerical simulations of impact of hypervelocity particle stream with a target. The stream of interest consists of submillimeter (30-300 micron) brittle ceramic particles. Current supercomputer capabilities make it possible to simulate a realistic size of streams (up to 20 mm in diameter and 500 mm in length) while resolving each particle individually. Such simulations make possible to study the damage of the target from synergistic effects of individual impacts. In our research we fixed the velocity distribution along the axis of the stream (1-4 km/s) and volume fraction of the solid material (1-10%) and study effects of particle size variation, particle and target material properties and surrounding air properties. We ran 3D calibration simulations with up to 10 million individual particles and conducted sensitivity studies with 2D cylindrically symmetric simulations. We used an Eulerian Godunov hydrocode with adaptive mesh refinement. The particles, target material and air are represented with volume-of-fluid approach. Brittle particle and target material has been simulated with pressure-dependent yield strength and Steinberg model has been used for metal targets. Simulations demonstrated penetration depth and a hole diameter similar to experimental observations and can explain the influence of parameters of the stream on the character of the penetration.

  10. Fixed Low-Order Controller Design and H Optimization for Large-Scale

    E-Print Network [OSTI]

    Overton, Michael L.

    fuel cell system (Wang and Fixed Low-Order Controller Design and H Optimization for Large-Scale Dynamical Systems Tim Mitchell maximizer of the associated transfer function. Our controller design code uses nonsmooth optimization

  11. Has the Bug Really Been Fixed? Zhongxian Gu Earl T. Barr David J. Hamilton Zhendong Su

    E-Print Network [OSTI]

    Su, Zhendong

    bugs. To confirm this folklore, we explored bug databases of the Ant, AspectJ, and Rhino projects implemented FIXATION, a proto- type that automatically detects bad fixes for Java programs. When it detects

  12. Real-Time Obstacle and Collision Avoidance System for Fixed-Wing Unmanned Aerial Systems

    E-Print Network [OSTI]

    Esposito, Julien Florian

    2013-08-31

    The motivation for the research presented in this dissertation is to provide a two-fold solution to the problem of non-cooperative reactive mid-air threat avoidance for fixed-wing unmanned aerial systems. The first phase ...

  13. Crimp sealing of tubes flush with or below a fixed surface

    DOE Patents [OSTI]

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

    1996-08-20

    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.

  14. Communication: Fixed-node errors in quantum Monte Carlo: Interplay of electron density and node nonlinearities

    SciTech Connect (OSTI)

    Rasch, Kevin M.; Hu, Shuming; Mitas, Lubos [Center for High Performance Simulation and Department of Physics, North Carolina State University, Raleigh, North Carolina 27695 (United States)] [Center for High Performance Simulation and Department of Physics, North Carolina State University, Raleigh, North Carolina 27695 (United States)

    2014-01-28

    We elucidate the origin of large differences (two-fold or more) in the fixed-node errors between the first- vs second-row systems for single-configuration trial wave functions in quantum Monte Carlo calculations. This significant difference in the valence fixed-node biases is studied across a set of atoms, molecules, and also Si, C solid crystals. We show that the key features which affect the fixed-node errors are the differences in electron density and the degree of node nonlinearity. The findings reveal how the accuracy of the quantum Monte Carlo varies across a variety of systems, provide new perspectives on the origins of the fixed-node biases in calculations of molecular and condensed systems, and carry implications for pseudopotential constructions for heavy elements.

  15. Fixed Points and elements of Domain theory continuation 1 Examples Context free Grammars

    E-Print Network [OSTI]

    Rabinovich, Alexander

    = #15; j aE 2. E = a j bEb 3. E = #15; j aaEE One can use fixed point theorem to provide the semantics

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

    E-Print Network [OSTI]

    Mitchison, Tim

    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

  17. [FIXED] perl 5.16.0 File::Glob() causes crashes

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

    perl 5.16.0 File::Glob() causes crashes FIXED perl 5.16.0 File::Glob() causes crashes August 15, 2013 by Doug Jacobsen (1 Comments) There is an issue with the default modules...

  18. DOE Prepared for Implementation of Fixed-Price Hanford 222-S...

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

    the protest and DOE is now prepared to start transition to the primarily firm-fixed-price contract. In an effort to better align contractor and taxpayer interests, the contract...

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

    Energy Savers [EERE]

    at the Hanford site. The Hanford success story marked EM's latest use of a hybrid fixed-price contract. The estimated 99 million contract went to HPM Corp., a certified minority-...

  20. Code of practice for the storage of liquefied petroleum gas at fixed installations 

    E-Print Network [OSTI]

    Anonymous

    1971-01-01

    This Code provides a general guide to safe practice in storing and handling liquefied petroleum gas (LPG) at fixed storage installations where tanks are filled on site. It has been prepared primarily as a guide for any ...

  1. UVA experimental and high energy physics. Final grant report

    SciTech Connect (OSTI)

    Cox, B.

    1999-10-07

    The period 1992--1997 was a mixture of frustrations and of accomplishments for the UVa HEP group. The experimental HEP group began this period with the completion of a truncated run of Experiment E771 at Fermilab in 1992. This experiment was designed to measure the cross section for beauty production in 800 GeV/c pN interactions. It succeeded in this goal as well as in obtaining one of the best limits on FCNC in charm decays by setting an upper limit on D{sup 0} {r_arrow} {mu}{sup +}{mu}{sup {minus}}. In addition, they were able to measure {Psi}, {Psi}, {chi}{sub 1},{chi}{sub 2} and upsilon production. Three UVa PhD theses have resulted from this experiment (as well as 12 other PhD's at other institutions). At the same time, the UVa experimental group was vigorously pursuing the goal of studying CP violation in B production. This took the form of a proposal to the SSC for a super fixed target facility, the SFT, which would focus on studies of B mesons. B. Cox was the spokesman of this experiment that had over thirty institutions. This proposal EOI-14 had a good reception by the SSC PAC. A R and D activity to prove the technique of crystal channeling was undertaken to prove the accelerator aspects of this proposal. This activity, known as E853 or CEX at Fermilab, resulted in proof of the crystal channeling technique as viable for the extraction of 20 TeV beam at the SSC. In addition to this activity, the UVa group investigated many other aspects of B physics at the SSC. They were among the leaders of the 1993 Snowmass meeting on B Physics at Hadronic Accelerators. The UVa HEP group worked vigorously on developing the ideas for B physics at the SSC, as evidenced by the many different studies listed in the publication list given, up to the very day the SSC was terminated by an act of Congress.

  2. Optimal state discrimination with a fixed rate of inconclusive results: Analytical solutions and relation to state discrimination with a fixed error rate

    E-Print Network [OSTI]

    Ulrike Herzog

    2012-09-25

    We study an optimum measurement for quantum state discrimination, which maximizes the probability of correct results when the probability of inconclusive results is fixed at a given value. The measurement describes minimum-error discrimination if this value is zero, while under certain conditions it corresponds to optimized maximum-confidence discrimination, or to optimum unambiguous discrimination, respectively, when the fixed value reaches a definite minimum. Using operator conditions that determine the optimum measurement, we derive analytical solutions for the discrimination of two mixed qubit states, including the case of two pure states occurring with arbitrary prior probabilities, and for the discrimination of N symmetric states, both pure and mixed. We also consider a case where the given density operators resolve the identity operator, and we specify the optimality conditions for the case of partially symmetric states. Moreover, we show that from the complete solution for arbitrary values of the fixed rate of inconclusive results one can always obtain the optimum measurement in another strategy where the error rate is fixed, and vice versa.

  3. Polarimetry of the polarized hydrogen deuteride HDice target under an electron beam

    SciTech Connect (OSTI)

    Laine, Vivien E. [Universite Blaise Pascal

    2013-10-01

    The study of the nucleon structure has been a major research focus in fundamental physics in the past decades and still is the main research line of the Thomas Jefferson National Accelerator Facility (Jefferson Lab). For this purpose and to obtain statistically meaningful results, having both a polarized beam and a highly efficient polarized target is essential. For the target, this means high polarization and high relative density of polarized material. A Hydrogen Deuteride (HD) target that presents both such characteristics has been developed first at Brookhaven National Lab (BNL) and brought to the Hall B of Jefferson Lab in 2008. The HD target has been shown to work successfully under a high intensity photon beam (BNL and Jefferson Lab). However, it remained to be seen if the target could stand an electron beam of reasonably high current (nA). In this perspective, the target was tested for the first time in its frozen spin mode under an electron beam at Jefferson Lab in 2012 during the g14 experiment. This dissertation presents the principles and usage procedures of this HD target. The polarimetry of this target with Nuclear Magnetic Resonance (NMR) during the electron beam tests is also discussed. In addition, this dissertation also describes another way to perform target polarimetry with the elastic scattering of electrons off a polarized target by using data taken on helium-3 during the E97-110 experiment that occurred in Jefferson Lab's Hall A in 2003.

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

    E-Print Network [OSTI]

    Bell, James H

    1992-01-01

    Record of Study FIXED TIME ARTIFICIAL INSEMINATION OF SHEEP USING CERVICAL AND INTRAUTERINE INSEMINATION TECHNIQUES A PROFESSIONAL PAPER by James H. Bell Submitted to the College of Agriculture of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF AGRICULTURE August 1992 Animal Science Physiology of Reproduction FIXED TIME ARTIFICIAL INSEMINATION OF SHEEP USING CERVICAL AND INTRAUTERINE INSEMINATION TECHNIQUES A Professional Paper by James Bell Approved...

  5. The effect of velocity and porosity profiles on the performance of fixed bed reactors 

    E-Print Network [OSTI]

    Amin, Kaushik

    1983-01-01

    (m r) R. H. Loeppert (member) C. D. 1 and (Head of the Dept. ) December 1983 ABSTRACT THE Effect of Velocity and Porosity Profiles on the Performance of Fixed Bed Reactors (December 1983) Kaushik Amin, B. S. , M. S. University of Barcda... and velocity profiles in the modeling of fixed bed reactors. The first attempt accounting for the porosity profile in the reactor mcdel was made by Xondelik et al. (1969). They used a one dimensional parallel channel model to predict overall conversion...

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

    E-Print Network [OSTI]

    Georgios Fotopoulos; Valery Serov

    2014-12-01

    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.

  7. Bound states for Overlap and Fixed Point Actions close to the chiral limit

    E-Print Network [OSTI]

    Stefan Haeusler; C. B. Lang

    2001-05-16

    We study the overlap and the fixed point Dirac operators for massive fermions in the two-flavor lattice Schwinger model. The masses of the triplet (pion) and singlet (eta) bound states are determined down to small fermion masses and the mass dependence is compared with various continuum model approximations. Near the chiral limit, at very small fermion masses the fixed point operator has stability problems, which in this study are dominated by finite size effects,

  8. Context Interchange Mediation for Semantic Interoperability and Dynamic Integration of Autonomous Information Sources in the Fixed Income Securities Industry

    E-Print Network [OSTI]

    Siegel, Michael

    2003-02-10

    We examine semantic interoperability problems in the fixed income securities industry and propose a knowledge representation architecture for context interchange ...

  9. LIFE Target Fabrication Research Plan Sept 2008

    SciTech Connect (OSTI)

    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

    2008-11-10

    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.

  10. Physical Sciences

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesseworkSURVEYI/OPerformance andAreaPhotoinducedCenter Objective ThePhysical

  11. J. of Indonesian Math. Soc., 10, N1, (2004), 53-62. Inverse scattering with fixed-energy data

    E-Print Network [OSTI]

    2004-01-01

    J. of Indonesian Math. Soc., 10, N1, (2004), 53-62. Inverse scattering with fixed-energy data A.G. Ramm, ramm@math.ksu.edu #12;Inverse scattering with fixed-energy data A.G. Ramm Mathematics Department for solving the three-dimensional inverse scat- tering problem with fixed-energy data is described

  12. Center for Beam Physics

    E-Print Network [OSTI]

    Chattopadhyay, S.

    2010-01-01

    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

  13. Particle Physics Booklet 2008

    E-Print Network [OSTI]

    et al., C. Amsler

    2008-01-01

    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

  14. Center for Beam Physics

    E-Print Network [OSTI]

    Chattopadhyay, S.

    2010-01-01

    presented at APS Division of Plasma Physics, Denver,of Division of Physics of Beams of APS, InternationalLinear Colliders," APS New Directions in High Energy Physics

  15. Target diagnostic system for the national ignition facility (invited)

    SciTech Connect (OSTI)

    Leeper, R.J.; Chandler, G.A.; Cooper, G.W.; Derzon, M.S.; Fehl, D.L.; Hebron, D.E.; Moats, A.R.; Noack, D.D.; Porter, J.L.; Ruggles, L.E.; Ruiz, C.L.; Torres, J.A.; Cable, M.D.; Bell, P.M.; Clower, C.A.; Hammel, B.A.; Kalantar, D.H.; Karpenko, V.P.; Kauffman, R.L.; Kilkenny, J.D.; Lee, F.D.; Lerche, R.A.; MacGowan, B.J.; Moran, M.J.; Nelson, M.B.; Olson, W.; Orzechowski, T.J.; Phillips, T.W.; Ress, D.; Tietbohl, G.L.; Trebes, J.E.; Bartlett, R.J.; Berggren, R.; Caldwell, S.E.; Chrien, R.E.; Failor, B.H.; Fernandez, J.C.; Hauer, A.; Idzorek, G.; Hockaday, R.G.; Murphy, T.J.; Oertel, J.; Watt, R.; Wilke, M.; Bradley, D.K.; Knauer, J.; Petrasso, R.D.; Li, C.K.

    1997-01-01

    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, electromagnetic pulse, 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. {copyright} {ital 1997 American Institute of Physics.}

  16. Superstring Compactification and Target Space Duality

    E-Print Network [OSTI]

    John H. Schwarz

    1991-08-26

    This review talk focusses on some of the interesting developments in the area of superstring compactification that have occurred in the last couple of years. These include the discovery that ``mirror symmetric" pairs of Calabi--Yau spaces, with completely distinct geometries and topologies, correspond to a single (2,2) conformal field theory. Also, the concept of target-space duality, originally discovered for toroidal compactification, is being extended to Calabi--Yau spaces. It also associates sets of geometrically distinct manifolds to a single conformal field theory. A couple of other topics are presented very briefly. One concerns conceptual challenges in reconciling gravity and quantum mechanics. It is suggested that certain ``distasteful allegations" associated with quantum gravity such as loss of quantum coherence, unpredictability of fundamental parameters of particle physics, and paradoxical features of black holes are likely to be circumvented by string theory. Finally there is a brief discussion of the importance of supersymmetry at the TeV scale, both from a practical point of view and as a potentially significant prediction of string theory.

  17. Cascaded target normal sheath acceleration

    SciTech Connect (OSTI)

    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.

    2013-11-15

    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.

  18. When Physics met Politics:When Physics met Politics: Physics of Politics? Politics of Physics?Physics of Politics? Politics of Physics?

    E-Print Network [OSTI]

    Chen, Yang-Yuan

    When Physics met Politics:When Physics met Politics: Physics of Politics? Politics of Physics?Physics of Politics? Politics of Physics? :: ?? ?? SaiSai--Ping LiPing Li Institute of Physics, Academia Sinica · Atomic and Molecular Physics · Particle Physics · Astrophysics · Nuclear Physics · Biophysics

  19. Small Molecule Target Identification using Drug Affinity Responsive Target Stability (DARTS)

    E-Print Network [OSTI]

    Lomenick, Brett Eugene

    2013-01-01

    FIGURE 2.8: Resveratrol does not inhibitFIGURE 2.9: Resveratrol target analysis withFIGURE 2.10: Resveratrol target analysis with

  20. Review of the Renewable Energy Target

    E-Print Network [OSTI]

    Peters, Richard

    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

  1. Targets and processes for fabricating same

    SciTech Connect (OSTI)

    Cowna, Thomas; Malekos, Steven; Korgan, Grant; Adams, Jesse; Sentoku, Yasuhiko; LeGalloudec, Nathalie

    2014-06-10

    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.

  2. Nanoparticles for targeting the infarcted heart

    E-Print Network [OSTI]

    Dvir, Tal

    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 ...

  3. Solid Target Studies for NF Rob Edgecock

    E-Print Network [OSTI]

    McDonald, Kirk

    . Proposed lubricant (coating): WS2 Demonstrated to work to ~1300oC in vacuum. #12;Target Change #12;Target Calculations and Optimisation. John 4. Chain Design Optimisation ­ roller chain or alternative. David Consult

  4. Targets and processes for fabricating same

    DOE Patents [OSTI]

    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)

    2012-07-24

    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.

  5. Enterprise Assessments, Lessons Learned from Targeted Reviews...

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

    - November 2013 Enterprise Assessments Targeted Review, Argonne National Laboratory - November 2014 Enterprise Assessments Review, West Valley Demonstration Project - December...

  6. Ecological Risk Assessment Framework for Low-Altitude Overflights by Fixed-Wing and Rotary-Wing Military Aircraft

    SciTech Connect (OSTI)

    Efroymson, R.A.

    2001-01-12

    This is a companion report to the risk assessment framework proposed by Suter et al. (1998): ''A Framework for Assessment of Risks of Military Training and Testing to Natural Resources,'' hereafter referred to as the ''generic framework.'' The generic framework is an ecological risk assessment methodology for use in environmental assessments on Department of Defense (DoD) installations. In the generic framework, the ecological risk assessment framework of the US Environmental Protection Agency (EPA 1998) is modified for use in the context of (1) multiple and diverse stressors and activities at a military installation and (2) risks resulting from causal chains, e.g., effects on habitat that indirectly impact wildlife. Both modifications are important if the EPA framework is to be used on military installations. In order for the generic risk assessment framework to be useful to DoD environmental staff and contractors, the framework must be applied to specific training and testing activities. Three activity-specific ecological risk assessment frameworks have been written (1) to aid environmental staff in conducting risk assessments that involve these activities and (2) to guide staff in the development of analogous frameworks for other DoD activities. The three activities are: (1) low-altitude overflights by fixed-wing and rotary-wing aircraft (this volume), (2) firing at targets on land, and (3) ocean explosions. The activities were selected as priority training and testing activities by the advisory committee for this project.

  7. Physics Illinois Undergraduate Programs

    E-Print Network [OSTI]

    Lee, Tonghun

    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

  8. Review of Heavy-Ion Inertial Fusion Physics

    E-Print Network [OSTI]

    Kawata1, S; Ogoyski, A I

    2015-01-01

    In this review paper on heavy ion inertial fusion (HIF), the state-of-the-art scientific results are presented and discussed on the HIF physics, including physics of the heavy ion beam (HIB) transport in a fusion reactor, the HIBs-ion illumination on a direct-drive fuel target, the fuel target physics, the uniformity of the HIF target implosion, the smoothing mechanisms of the target implosion non- uniformity and the robust target implosion. The HIB has remarkable preferable features to release the fusion energy in inertial fusion: in particle accelerators HIBs are generated with a high driver efficiency of ~ 30-40%, and the HIB ions deposit their energy inside of materials. Therefore, a requirement for the fusion target energy gain is relatively low, that would be ~50-70 to operate a HIF fusion reactor with the standard energy output of 1GW of electricity. The HIF reactor operation frequency would be ~10~15 Hz or so. Several- MJ HIBs illuminate a fusion fuel target, and the fuel target is imploded to about a...

  9. Automatic Target Word Disambiguation Using Syntactic Relationships

    E-Print Network [OSTI]

    Automatic Target Word Disambiguation Using Syntactic Relationships Ebony Domingo1 and Rachel Edita. Multiple target translations are due to several meanings of source words, and various target word equivalents depending on the context of the source word. Thus, an automated approach is presented

  10. Predicting new molecular targets for known drugs

    E-Print Network [OSTI]

    Kaski, Samuel

    ARTICLES Predicting new molecular targets for known drugs Michael J. Keiser1,2 *, Vincent Setola3 drugs are intended to be selective, at least some bind to several physiological targets, explaining side effects and efficacy. Because many drug­target combinations exist, it would be useful to explore possible

  11. Drug-Target Interaction Predicates Combining Similarities

    E-Print Network [OSTI]

    Daume III, Hal

    Drug-Target Interaction Predicates DataSet Combining Similarities Collective Inference Collective Inference and Multi-Relational Learning for Drug­Target Interaction Prediction Shobeir Fakhraei1, Bert Huang1 and Lise Getoor1,2 Poly-pharmacology Drug Repurposing Drug-Target Interaction Network Studies

  12. Physics 291: Physics Science Outreach Information

    E-Print Network [OSTI]

    Baski, Alison

    Physics 291: Physics Science Outreach Course Information Fall 2005 Information (course on General Education List K - Urban) Phys291: Topic - Physical Science Outreach - Richmond Elementary (#14917) Time: Tues & Thurs at 11:00 am to 12:15 pm (plus outreach visits) Location: OLVPH #2121 (located in Physics

  13. Color Imaging Arithmetic: Physics Math > Physics + Math

    E-Print Network [OSTI]

    Sharma, Gaurav

    Color Imaging Arithmetic: Physics Math > Physics + Math Gaurav Sharma University of Rochester inter- action commonly form the physical interface by which we connect to the digital cyber-world. Because these devices bridge the physical and the electronic worlds, elegant and effective solutions

  14. People's Physics Book The People's Physics Book

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    #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

  15. Physics Procedia 00 (2013) 16 Physics Procedia

    E-Print Network [OSTI]

    Adler, Joan

    2013-01-01

    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

  16. People's Physics Book The People's Physics Book

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    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

  17. Physics Procedia 00 (2013) 15 Physics Procedia

    E-Print Network [OSTI]

    Adler, Joan

    2013-01-01

    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

  18. Physics 129 Nuclear and Particle Physics

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    Physics 129 Nuclear and Particle Physics Winter Quarter 2008 Instructor: David A. Williams (office Physics by W. S. C. Williams, Oxford University Press, 1991. Course materials Homework assignments materials will be distributed on the web site above. Nine texts on nuclear and particle physics, all

  19. Physics 375 Introduction to Quantum Physics

    E-Print Network [OSTI]

    Kioussis, Nicholas

    Physics 375 Introduction to Quantum Physics Fall 2006 Logistics Lecture Room: LO 1100 (Science I, 1 Phone: 818 677-7733 e-mail: nick.kioussis@csun.edu http://www.csun.edu/~nkioussi/ Prerequisites Physics 227 ­ Calculus based course on Thermodynamics, Waves, and Modern Physics Textbook Introductory Quantum

  20. Borghini's Mechanism for Dynamic Polarization in Polarized Targets

    E-Print Network [OSTI]

    de Boer, Wim

    2015-01-01

    This paper is a contribution to the memorial session for Michel Borghini at the Spin 2014 conference in Bejing, honoring his pivotal role for the development of polarized targets in high energy physics. Borghini proposed for the first time the correct mechanism for dynamic polarization in polarized targets using organic materials doped with free radicals. In these amorphous materials the spin levels are broadened by spin-spin interactions and g-factor anisotropy, which allows a high dynamic polarization of nuclei by cooling of the spin-spin interaction reservoir. In this contribution I summarize the experimental evidence for this mechanism. These pertinent experiments were done at CERN in the years 1971 - 1974, when I was a graduate student under the guidance of Michel Borghini. I finish by shortly describing how Borghini's spin temperature theory is now applied in cancer therapy.

  1. Innovative Waste Management in the Mercury Loop of the EURISOL Multi-MW Converter Target

    E-Print Network [OSTI]

    PSI: Jörg Neuhausen, Dorothea Schumann, Rugard Dressler, Susanne Horn, Sabrina Lu?thi, Stephan Heinitz, Suresh ChirikiCERN: Thierry Stora, Martin Eller

    The choice of mercury as target material imposes various questions concerning the safe operation of such a system that are related to the physical and chemical properties of the target material itself and the nuclear reaction products produced within the target during its life time of several decades. Therefore, a subtask was created within the EURISOL-DS project that is concerned with studying an innovative waste management for the generated radioactivity by chemical means. Such a study strongly depends on the radioactive inventory and its distribution throughout the target and loop system. Radioactive inventory calculations were performed within task 5 [6]. The distribution of nuclear reaction products and their chemical state that can be expected within the target and loop system is one of the topics covered in this report. Based on the results obtained by theoretical studies as well as laboratory scale experiments, the feasibility of waste reduction using chemical methods, both conventional (e.g. leaching...

  2. Process for the fabrication of aluminum metallized pyrolytic graphite sputtering targets

    DOE Patents [OSTI]

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

    1995-01-01

    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.

  3. Physical Plant Power Plant - 32 

    E-Print Network [OSTI]

    Unknown

    2005-06-30

    Historically, a fixed cooling concept is used in the design of evaporative heat rejection systems for process and power plants. In the fixed cooling mode, a plant is designed for maximum output at the design summer wet bulb temperature...

  4. January 2010 Physics 3300

    E-Print Network [OSTI]

    deYoung, Brad

    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? What's next? Texts : Robert H. Stewart, Introduction to Physical Oceanography, Robert H. Stewart

  5. Mathematics and Physics

    E-Print Network [OSTI]

    Sengun, Mehmet Haluk

    knowledge of mathematics and physics after you graduate." 3thE UnivErsity Of warwick Introduction #12;TheMathematics and Physics Physics at warwick 2016 #12;Physics at Warwick Joint Honours Courses Mathematics and Physics #12;Gary Barker head, Undergraduate admissions "Mathematics and physics are a sensible

  6. PLUTONIUM-238 PRODUCTION TARGET DESIGN STUDIES

    SciTech Connect (OSTI)

    Hurt, Christopher J [ORNL; Wham, Robert M [ORNL; Hobbs, Randall W [ORNL; Owens, R Steven [ORNL; Chandler, David [ORNL; Freels, James D [ORNL; Maldonado, G Ivan [ORNL

    2014-01-01

    A new supply chain is planned for plutonium-238 using existing reactors at the Oak Ridge National Laboratory (ORNL) and Idaho National Laboratory (INL) and existing chemical recovery facilities at ORNL. Validation and testing activities for new irradiation target designs have been conducted in three phases over a 2 year period to provide data for scale-up to production. Target design, qualification, target fabrication, and irradiation of fully-loaded targets have been accomplished. Data from post-irradiation examination (PIE) supports safety analysis and irradiation of future target designs.

  7. Terahertz-based target typing.

    SciTech Connect (OSTI)

    Lyo, Sungkwun Kenneth; Wanke, Michael Clement; Reno, John Louis; Shaner, Eric Arthur; Grine, Albert D.; Barrick, Todd A.

    2008-09-01

    The purpose of this work was to create a THz component set and understanding to aid in the rapid analysis of transient events. This includes the development of fast, tunable, THz detectors, along with filter components for use with standard detectors and accompanying models to simulate detonation signatures. The signature effort was crucial in order to know the spectral range to target for detection. Our approach for frequency agile detection was to utilize plasmons in the channel of a specially designed field-effect transistor called the grating-gate detector. Grating-gate detectors exhibit narrow-linewidth, broad spectral tunability through application of a gate bias, and no angular dependence in their photoresponse. As such, if suitable sensitivity can be attained, they are viable candidates for Terahertz multi-spectral focal plane arrays.

  8. Therapeutic target for protozoal diseases

    DOE Patents [OSTI]

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

    2008-10-21

    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.

  9. Fabrication of boron sputter targets

    DOE Patents [OSTI]

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

    1995-01-01

    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.

  10. Ignition of deuterium-tritium fuel targets

    DOE Patents [OSTI]

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

    1991-08-27

    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.

  11. Dark energy as a fixed point of the Einstein Yang-Mills Higgs Equations

    E-Print Network [OSTI]

    Rinaldi, Massimiliano

    2015-01-01

    We study the Einstein Yang-Mills Higgs equations in the $SO(3)$ representation on a isotropic and homogeneous flat Universe, in the presence of radiation and matter fluids. We map the equations of motion into a closed dynamical system of first-order differential equations and we find the equilibrium points. We show that there is only one stable fixed point that corresponds to an accelerated expanding Universe in the future. In the past, instead, there is an unstable fixed point that implies a stiff-matter domination. In between, we find three other unstable fixed points, corresponding, in chronological order, to radiation domination, to matter domination, and, finally, to a transition from decelerated expansion to accelerated expansion. We solve the system numerically and we confirm that there are smooth trajectories that correctly describe the evolution of the Universe, from a remote past dominated by radiation to a remote future dominated by dark energy, passing through a matter-dominated phase.

  12. Dark energy as a fixed point of the Einstein Yang-Mills Higgs Equations

    E-Print Network [OSTI]

    Massimiliano Rinaldi

    2015-09-02

    We study the Einstein Yang-Mills Higgs equations in the $SO(3)$ representation on a isotropic and homogeneous flat Universe, in the presence of radiation and matter fluids. We map the equations of motion into an autonomous dynamical system of first-order differential equations and we find the equilibrium points. We show that there is only one stable fixed point that corresponds to an accelerated expanding Universe in the future. In the past, instead, there is an unstable fixed point that implies a stiff-matter domination. In between, we find three other unstable fixed points, corresponding, in chronological order, to radiation domination, to matter domination, and, finally, to a transition from decelerated expansion to accelerated expansion. We solve the system numerically and we confirm that there are smooth trajectories that correctly describe the evolution of the Universe, from a remote past dominated by radiation to a remote future dominated by dark energy, passing through a matter-dominated phase.

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

    Broader source: Energy.gov [DOE]

    The purpose of this Flash is to inform you of a revision to Acquisition Letter AL2015-01, titled Incrementally Funding Fixed-Price Actions. The revision appears in the “What Guidance is included in this AL?” section under its “Approval” subsection. The revised language appears in italics. The revision grants authority to a Head of Contracting Activity to approve incremental funding of fixed-price actions for actions within his/her approval authority. The resulting Acquisition Letter is Acquisition Letter AL2015-01R. It replaces Acquisition Letter AL2015-01

  14. Hadron masses from fixed topology simulations: parity partners and SU(2) Yang-Mills results

    E-Print Network [OSTI]

    Arthur Dromard; Christopher Czaban; Marc Wagner

    2014-10-20

    Lattice QCD simulations tend to get stuck in a single topological sector at fine lattice spacing, or when using chirally symmetric quarks. In such cases computed observables differ from their full QCD counterparts by finite size effects, which need to be understood on a quantitative level. We discuss extensions of existing relations from the literature between correlation functions at fixed topology and hadron masses at unfixed topology. Particular focus is put on disentangling positive and negative parity states, which mix, when the topological charge is fixed. We also present numerical results for SU(2) Yang-Mills Theory.

  15. The fixed structurally robust internal model principle for linear multivariable regulators 

    E-Print Network [OSTI]

    McGrath, John Thomas

    1980-01-01

    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... Multivariable Regulators. (May 19BC) John Thomas McGrath, B. S. , Texas ARM Unive sity Chairman of Advisory Committee: Dr. Ralph Keary Cavin III In this paper we develop the necessary and suffi- cient cond'tions to establish the new concept of' a fixed...

  16. Sequence Heterogeneity Accelerates Protein Search for Targets on DNA

    E-Print Network [OSTI]

    Alexey A. Shvets; Anatoly B. Kolomeisky

    2015-07-21

    The process of protein search for specific binding sites on DNA is fundamentally important since it marks the beginning of all major biological processes. We present a theoretical investigation that probes the role of DNA sequence symmetry, heterogeneity and chemical composition in the protein search dynamics. Using a discrete-state stochastic approach with a first-passage events analysis, which takes into account the most relevant physical-chemical processes, a full analytical description of the search dynamics is obtained. It is found that, contrary to existing views, the protein search is generally faster on DNA with more heterogeneous sequences. In addition, the search dynamics might be affected by the chemical composition near the target site. The physical origins of these phenomena are discussed. Our results suggest that biological processes might be effectively regulated by modifying chemical composition, symmetry and heterogeneity of a genome.

  17. Table I: Technical Targets for Catalyst Coated Membranes (CCMs...

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

    I: Technical Targets for Catalyst Coated Membranes (CCMs): Automotive Table I: Technical Targets for Catalyst Coated Membranes (CCMs): Automotive Technical targets for fuel cell...

  18. Comparisons on thin and thick neutron target for low energy proton beam

    SciTech Connect (OSTI)

    Zhong, B.; Yu, G.; Wang, X.; Wang, K. [Dept. of Engineering Physics, Tsinghua Univ., Beijing 100084 (China)

    2012-07-01

    As the progress on accelerator physics and neutronics, the compact neutron sources driven by low energy and high intensity beam are becoming extensively developed and researched all around the world. The neutron target of an accelerator driven neutron source is one of the key components, and the stability of the neutron target affect the operation and performance of the neutron facility. When a low energy proton is projected to the beryllium target, the main reaction is the inelastic scattering between the proton and extra-nuclear electrons. As the decreasing of proton energy, the rate of elastic scattering between proton and target nucleus begins to increase. When the energy of proton is very low, the pickup charge reaction begins to appear. Focus on the problems brought by high intensity proton beam such as proton implantation, radiation damages, heat deposition and gas production, we performed sufficient numerical simulations for both thin and thick target determined by proton range. The results show that the critical problem for thick target is the proton implantation, causing the forming of bubbles and beryllium flaked in vacuum. The thin target sacrifices a little neutron yield, but avoid the proton stopped in target, and decrease the radiation damage and energy deposition. (authors)

  19. Physics Resources for Teachers

    E-Print Network [OSTI]

    Collar, Juan I.

    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

  20. General Syllabus Physics 45100

    E-Print Network [OSTI]

    Brinkmann, Peter

    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

  1. B Physics (Experiment)

    E-Print Network [OSTI]

    Michal Kreps

    2010-08-13

    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.

  2. DOCTORAL PROGRAMME MATHEMATICS AND PHYSICS, Subprogramme PHYSICS,

    E-Print Network [OSTI]

    ?umer, Slobodan

    area. The nuclear Engineering module treats nuclear technology, operation, nuclear safety, reactorDOCTORAL PROGRAMME MATHEMATICS AND PHYSICS, Subprogramme PHYSICS, Module NUCLEAR ENGINEERING Slovenia is producing a significant share of its electricity in nuclear power plant. The doctoral programme

  3. Liquid Hydrogen Target for the COMPASS experiment

    E-Print Network [OSTI]

    Bremer, J; Duday-Chanat, L; Geyer, R; Mallot, G K; Pirotte, O; Vullierme, B

    2014-01-01

    A liquid hydrogen target has been developed for the COMPASS experiment at CERN. The target has a diameter of 40 mm and a length of 2.5 meter, creating an active volume of about 3 liter of liquid hydrogen. The cylindrical part of the target wall is formed by a Kapton® foil strip, wound and glued to a thickness of 0.125 mm. The Kapton® foil is used to minimize the energy loss of the particles, scattered or created within the target volume, crossing the target boundary. The two end-caps enclosing the target volume have been fabricated from Mylar®. The system is cooled with a 30 W at 20 K cryocooler, delivering the cooling capacity for the cool-down as well as for the continuous operation of the system.

  4. Tensor Target Polarization at TRIUMF

    SciTech Connect (OSTI)

    Smith, G

    2014-10-27

    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.

  5. PURE STRATEGY NASH EQUILIBRIUM POINTS AND THE LEFSCHETZ FIXED POINT THEOREM

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    PURE STRATEGY NASH EQUILIBRIUM POINTS AND THE LEFSCHETZ FIXED POINT THEOREM by Leigh Tesfatsion of Minnesota Minneapolis, Minnesota 55455 #12;ABSTRAcr A pure strategy Nash equilibrium point existence theorem cases of the existence theorem are also discussed. #12;PURE STRATEGY NASH EQUILIBRIUM POINTS

  6. On the Complexity of Nash Equilibria and Other Fixed Points Kousha Etessami

    E-Print Network [OSTI]

    Etessami, Kousha

    On the Complexity of Nash Equilibria and Other Fixed Points Kousha Etessami LFCS, School Abstract We reexamine what it means to compute Nash equilibria and, more generally, what it means or more players, and given > 0, compute an approximation within of some (actual) Nash equilibrium. We show

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

    E-Print Network [OSTI]

    Boyer, Edmond

    Approximate Response Time for Fixed Priority Real-Time Systems with Energy-Harvesting Yasmina constraints. In this problem, energy is harvested from the ambient environment and used to replenish a storage on whether their rate of energy consumption is (i) more than or (ii) no more than the storage unit

  8. Gradient flow and IR fixed point in SU(2) with Nf=8 flavors

    E-Print Network [OSTI]

    Viljami Leino; Tuomas Karavirta; Jarno Rantaharju; Teemu Rantalaiho; Kari Rummukainen; Joni M. Suorsa; Kimmo Tuominen

    2015-11-11

    We study the running of the coupling in SU(2) gauge theory with 8 massless fundamental representation fermion flavours, using the gradient flow method with the Schr\\"odinger functional boundary conditions. Gradient flow allows us to measure robust continuum limit for the step scaling function. The results show a clear indication of infrared fixed point consistent with perturbation theory.

  9. ON PRACTICAL NEURAL FIELD PARAMETERS ADJUSTMENT Frederic Alexandre, Jeremy Fix, Axel Hutt, Nicolas Rougier, Thierry Vieville

    E-Print Network [OSTI]

    Hutt, Axel

    that rectification is the only required non-linearity and formalize the use of this simplified but efficient it is a generally a non linear consequence of both the lateral connectivity pattern and the input pattern. ThusON PRACTICAL NEURAL FIELD PARAMETERS ADJUSTMENT Fr´ed´eric Alexandre, J´eremy Fix, Axel Hutt

  10. A fixed point formula of Lefschetz type in Arakelov geometry III: representations of

    E-Print Network [OSTI]

    Köhler, Kai

    A fixed point formula of Lefschetz type in Arakelov geometry III: representations We give a new proof of the Jantzen sum formula for integral repre- sentations of Chevalley formula of Lefschetz type in Arakelov geometry to generalized flag varieties. Our proof involves

  11. Fixed Priority Scheduling Strategies for Ambient Energy-Harvesting Embedded systems

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Fixed Priority Scheduling Strategies for Ambient Energy-Harvesting Embedded systems Maryline Chetto the capability to harvest energy from the environment. The electrical energy which is available to power these devices changes over time and is limited by the size of the energy storage unit such as battery

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

    E-Print Network [OSTI]

    Oak Ridge National Laboratory

    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

  13. Experimental Validation of a Novel Fischer Tropsch Tubular Fixed Bed Reactor Under Supercritical Conditions 

    E-Print Network [OSTI]

    Kasht, Amro Ismail

    2015-05-21

    R Reactor Ru Ruthenium SC Supercritical SCADA Supervisory Control And Data Acquisition SCF Supercritical Fluids SC-FTS Supercritical Fischer-Tropsch Synthesis SiO2 Silica SM Static Mixer SMDS Shell Middle distillates Synthesis SNG Sweet.... ........................................................................................... 29 Figure 4. PLC/SCADA computer graphical interface. .................................................... 30 Figure 5. Dräger Polytron 7000 Fixed CO gas detector with Dräger REGARD-1 Control System connected...

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

    E-Print Network [OSTI]

    Bakrawala, Murtaza A.

    2003-01-01

    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...

  15. Best-arm Identification Algorithms for Multi-Armed Bandits in the Fixed Confidence Setting

    E-Print Network [OSTI]

    Nowak, Robert

    Best-arm Identification Algorithms for Multi-Armed Bandits in the Fixed Confidence Setting Kevin with identifying the arm with the highest mean in a multi-armed bandit problem using as few independent samples from the arms as possible. While the so-called "best arm problem" dates back to the 1950s, only

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

    E-Print Network [OSTI]

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

    2012-12-06

    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.

  17. SHORT COMMUNICATION Mitochondrial DNA extraction and sequencing of formalin-fixed

    E-Print Network [OSTI]

    DeSalle, Rob

    or reduce the available sequence length of amplified products. Several methods have been used to extractSHORT COMMUNICATION Mitochondrial DNA extraction and sequencing of formalin-fixed archival snake of Natural History, New York, NY, USA, and 2 Graduate Center, City University of New York, New York, NY, USA

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

    E-Print Network [OSTI]

    as a function of time and space in a fixed, three-dimensional volume. One example is the optimal design of techniques that minimize the mortality of fish approaching hydroelectric dams or the cooling intakes for positioning optimally the receiving hydrophones to minimize the location measurement errors, the development

  19. Malicious Android Applications in the Enterprise: What Do They Do and How Do We Fix It?

    E-Print Network [OSTI]

    Chrobak, Marek

    Malicious Android Applications in the Enterprise: What Do They Do and How Do We Fix It? Xuetao Wei, University of California, Riverside {xwei, gomezl, neamtiu, michalis}@cs.ucr.edu Abstract-- Android, and even military. On one hand, enterprises can take advantage of the richness of Android applications

  20. Numerical null controllability of semi-linear 1-D heat equations: fixed point, least squares and

    E-Print Network [OSTI]

    Sart, Remi

    Numerical null controllability of semi-linear 1-D heat equations: fixed point, least squares with the numerical computation of distributed null controls for semi- linear 1D heat equations, in the sublinear in [Fernandez-Cara & Zuazua, Null and approximate controllability for weakly blowing up semi-linear heat

  1. 6th Workshop on Fixed Points in Computer Science Coimbra, Portugal, 12-13 September 2009

    E-Print Network [OSTI]

    Rutten, Jan

    Institute of Cybernetics at Tallinn University of Technology Akadeemia tee 21, EE-12618 Tallinn, Estonia Proceedings Institute of Cybernetics at TUT TTÜ KÜBERNEETIKA INSTITUUT #12;6th Workshop on Fixed Points in Computer Science FICS 2009 Coimbra, Portugal, 12­13 September 2009 Proceedings Institute of Cybernetics

  2. Fixed-point iterative sweeping methods for static Hamilton-Jacobi equations

    E-Print Network [OSTI]

    Zhang, Yong-Tao

    Fixed-point iterative sweeping methods for static Hamilton-Jacobi equations Yong-Tao Zhang1 , Hong for computations of static Hamilton-Jacobi equations. They take advantage of the properties of hyperbolic PDEs and try to cover a family of characteristics of the corresponding Hamilton-Jacobi equation in a certain

  3. Invitation to foreign students of Ulm University JOUR FIXE: June 3rd

    E-Print Network [OSTI]

    Pfeifer, Holger

    Invitation to foreign students of Ulm University 4th JOUR FIXE: June 3rd , 2008 ­ 18 o'clock German-Einstein-Allee 47, the building is between the bus stops "Wilhelm-Runge-Straße" and "Uni West") on Tuesday, June 3rd

  4. Aalborg Universitet A novel BEV concept based on fixed and swappable li-ion battery packs

    E-Print Network [OSTI]

    Berning, Torsten

    and Control, Robotics and Mechatronics Center German Aerospace Center (DLR), Wessling, D-82234, Germany Email@fe.up.pt Abstract--In this paper a novel battery electric vehicle (BEV) concept based on a small fixed and a big swappable li-ion battery pack is proposed in order to achieve: longer range, lower initial purchase price

  5. Algebraic irrational binary numbers cannot be fixed points of nontrivial constant length or primitive morphisms

    E-Print Network [OSTI]

    Allouche, Jean-Paul

    Algebraic irrational binary numbers cannot be fixed points of non­trivial constant length irrational number in a given base? A common conjectured answer to this vague question is that these digits . A widely believed conjecture is that an algebraic irrational number is a normal number in each base k â?? 2

  6. Raspberry derived mesoporous carbon-tubules and fixed-bed adsorption of pharmaceutical drugs

    E-Print Network [OSTI]

    Ma, Lena

    Raspberry derived mesoporous carbon-tubules and fixed-bed adsorption of pharmaceutical drugs Shashi Department, University of Florida, Gainesville, FL 32611-0290, USA 1. Introduction Pharmaceutical drugs (PD­water partition coefficient Pharmaceutical drugs A B S T R A C T Novel mesoporous carbon-tubules were prepared

  7. 1182 J. GUIDANCE, VOL. 19, NO. 5: ENGINEERING NOTES Fig. 2 Fixed and optimized flight paths.

    E-Print Network [OSTI]

    Singh, Tarunraj

    and optimized flight paths. Conclusion A simple guidance law for operation of dual-fuel SSTO launch vehicles hasbeen developed andused to determine the optimal value of the transition Mach number from dual fuel higher dynamic pressure than the fixed, particularly in dual-fuel mode. In the future, the guidance

  8. An Evaluation of High Order Spatial Accuracy Algorithms for Modeling Fixed and Rotary Wing Tip regions

    E-Print Network [OSTI]

    1 An Evaluation of High Order Spatial Accuracy Algorithms for Modeling Fixed and Rotary Wing Tip Nielsen Engineering and Research, Inc., Mountain View, CA 94043-2212 Yi Liu, Radhika Gupta, and L. N. Sankar School of Aerospace Engineering, Georgia Tech, Atlanta, GA 30332-0150 ABSTRACT Several high order

  9. A Systematic Study of Automated Program Repair: Fixing 55 out of 105 Bugs for $8 Each

    E-Print Network [OSTI]

    New Mexico, University of

    maintenance, which consumes a daunting fraction of the total cost of software production [1]. AutomatedA Systematic Study of Automated Program Repair: Fixing 55 out of 105 Bugs for $8 Each Claire Le-source programs totaling 5.1 million lines of code and involving 10,193 test cases. GenProg automatically repairs

  10. Tutorial on the Physics of Inertial Confinement Fusion for energy applications

    E-Print Network [OSTI]

    Tutorial on the Physics of Inertial Confinement Fusion for energy applications R. Betti University of Rochester and Princeton Plasma Physics Laboratory 3rd Meeting of the NAS panel on Inertial Fusion Energy · The implications of ignition to fusion ENERGY production Does the NIF address all the plasma-target PHYSICS issues

  11. T-712: Red Hat Enterprise MRG Grid 2.0 security, bug fix and...

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

    kexec Bugs Let Local and Remote Users Obtain Potentially Sensitive Information U-049: IBM Tivoli Netcool Reporter CGI Bug Lets Remote Users Inject Commands on the Target System...

  12. Physics 100B General Physics II

    E-Print Network [OSTI]

    Kioussis, Nicholas

    and Magnetic fields, Currents and circuits, Electromagnetic fields, Optics, Special Theory of Relativity an understanding and appreciation of the fundamental laws of electricity, magnetism and modern physics. At the end, Quantum Theory, Atomic physics, Nuclear Physics, and Elementary particles. (Chapters 19-31) Requirement

  13. Enterprise Assessments Targeted Review, Sandia National Laboratories...

    Energy Savers [EERE]

    Nuclear Security Administration sites that perform work at nuclear facilities and other high consequence hazards (e.g., chemical and biological). This targeted review area also...

  14. Enterprise Assessments Targeted Review, Lawrence Livermore National...

    Office of Environmental Management (EM)

    National Laboratory - February 2015 February 2015 Targeted Review of the Safety-Class Room Ventilation Systems and Associated Final Filtration Stages, and Review of Federal...

  15. Implications of structural genomics target selection strategies...

    Office of Scientific and Technical Information (OSTI)

    Implications of structural genomics target selection strategies: Pfam5000, whole genome, and random approaches Citation Details In-Document Search Title: Implications of structural...

  16. Setting Energy Savings Targets for Utilities

    SciTech Connect (OSTI)

    none,

    2011-09-01

    Helps policymakers understand how electric and natural gas utilities can achieve greater efficiency by establishing numeric energy savings targets and goals for energy efficiency programs.

  17. Physical Education ! Teaching Materials!

    E-Print Network [OSTI]

    Burg, Theresa

    Physical Education ! Teaching Materials! !!! ! 1. PROGRAMS OF STUDY ! ! ! ! ! ! ! ! ! !P.E. Program Physical Activity (DPA) Initiative: Mandatory program introduced in 2005. Schools are required to create opportunities for students to engage in Physical activity. Administrators and all teachers are responsible

  18. ENVIRONMENTAL PHYSICS METHODS

    E-Print Network [OSTI]

    Horváth, Ákos

    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

  19. Nuclear Physics: Recent Talks

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

    Free Electron Laser (FEL) Medical Imaging Physics Topics Campaigns Meetings Recent Talks Archived Talks Additional Information Computing at JLab Operations Logbook Physics Topics:...

  20. Nuclear Physics: Campaigns

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

    Free-Electron Laser (FEL) Medical Imaging Physics Topics Campaigns The Structure of the Nuclear Building Blocks The Structure of Nuclei Symmetry Tests in Nuclear Physics Meetings...

  1. B Physics: Theory Overview

    E-Print Network [OSTI]

    David London

    2012-07-23

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

  2. 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.

  3. Nuclear Physics: Experiment Research

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

    Research Highlights Public Interest Nuclear Physics Accelerator Free Electron Laser (FEL) Medical Imaging Physics Topics Campaigns Meetings Recent Talks Archived Talks...

  4. Evaluation of Physics Research

    E-Print Network [OSTI]

    Franssen, Michael

    ..........................................................................................23 Cluster: Physics of Transport in Fluids...................................................................................31 TU/e-9 Physics of Cold Atoms.....................................................................................................................................................................35 TU/e-10 Transport in Permeable Media

  5. Physics Advisory Committee Meeting

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

    2010 Physics Advisory Committee Meeting November 4-6, 2010 Comments and Recommendations Introduction The Fermilab Physics Advisory Committee (PAC) met to consider a number of...

  6. LANSCE Weapons Physics

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

    7 LANSCE Weapons Physics Fortune 500 companies and weapons designers alike rely on our internationally recognized nuclear physics and materials science expertise as well as our...

  7. 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...

  8. 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...

  9. High Energy Physics

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

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

  10. Explanations of FreedomCAR/DOE Hydrogen Storage Technical Targets

    Broader source: Energy.gov [DOE]

    Summary of FreedomCAR Targets and Basis for Targets prepared for the Grand Challenge Hydrogen Storage Solicitation.

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

    SciTech Connect (OSTI)

    Not listed

    2007-07-01

    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.

  12. A method for comparing impacts with real targets to impacts onto the IAEA unyielding target

    SciTech Connect (OSTI)

    Ammerman, D. J.

    1991-01-01

    The severity of the IAEA accident conditions test requirement (IAEA 1990) of an impact onto an essentially unyielding target from a drop height of 9 meters encompasses a large fraction of all real world impacts. This is true, in part, because of the unyielding nature of the impact target. Impacts onto the unyielding target have severities equivalent to higher velocity impacts onto real targets which are not unyielding. The severity of impacts with yielding targets is decreased by the amount of the impact energy absorbed in damaging the target. In demonstrating the severity of the regulatory impact event it is advantageous to be able to relate this impact onto an essentially unyielding target to impacts with yielding targets.

  13. Development of granular target for CADS

    E-Print Network [OSTI]

    McDonald, Kirk

    deposited by proton beam ~ X kW/cm^3 Industrial facility ~50MW=2.0GeV@25mA accelerator Spallation target, spheres, or plates to produce the neutrons, and coolant flowing between the elements for heat removal. · Liquid target options where a flowing liquid metal acts both as the source of neutrons and the heat

  14. TARGETING CANCER STEM CELLS Summary of technology

    E-Print Network [OSTI]

    Mucina, Ladislav

    TARGETING CANCER STEM CELLS Summary of technology Cancerstemcells(CSCs)playasignificantroleinleukemia, glioma, and breast, lung, gastrointestinal, prostate and ovarian cancer etiology, causing therapy of a new adjunct for targeted therapy of cancer involving CSCs, for use in combination with existing cancer

  15. Target Volatility Option Pricing Giuseppe Di Graziano

    E-Print Network [OSTI]

    Macrina, Andrea

    for the pricing of Target Volatility Options (TVOs), a recent market innovation in the eld of volatility are lower than the target volatility, the pay-o of the former is higher than the pay-o of the corresponding experi- enced a steep increase, with a signicant impact on option (long vega) costs. The generalized

  16. Technical Design Report, Second Target Station

    SciTech Connect (OSTI)

    Galambos, John D.; Anderson, David E.; Bechtol, D.; Bethea, Katie L.; Brown, N.; Carden, W. F.; Chae, Steven M.; Clark, A.; Counce, Deborah M.; Craft, K.; Crofford, Mark T.; Collins, Richard M.; Cousineau, Sarah M.; Curry, Douglas E.; Cutler, Roy I.; Dayton, Michael J.; Dean, Robert A.; Deibele, Craig E.; Doleans, Marc; Dye, T.; Eason, Bob H.; Eckroth, James A.; Fincrock, C.; Fritts, S.; Gallmeier, Franz X.; Gawne, Ken R.; Hartman, Steven M.; Herwig, Kenneth W.; Hess, S.; Holmes, Jeffrey A.; Horak, Charlie M.; Howell, Matthew P.; Iverson, Erik B.; Jacobs, Lorelei L.; Jones, Larry C.; Johnson, B.; Johnson, S.; Kasemir, Kay; Kim, Sang-Ho; Laughon, Gregory J.; Lu, W.; Mahoney, Kelly L.; Mammosser, John; McManamy, T.; Michilini, M.; Middendorf, Mark E.; O'Neal, Ed; Nemec, B.; Peters, Roy Cecil; Plum, Michael A.; Reagan, G.; Remec, Igor; Rennich, Mark J.; Riemer, Bernie; Saethre, Robert B.; Schubert, James Phillip; Shishlo, Andrei P.; Smith, C. Craig; Strong, William Herb; Tallant, Kathie M.; Tennant, David Alan; Thibadeau, Barbara M.; Trumble, S.; Trotter, Steven M.; Wang, Z.; Webb, Steven B.; Williams, Derrick C.; White, Karen S.; Zhao, Jinkui

    2015-01-01

    The Second Target Station (STS) is a proposed upgrade for SNS. It includes a doubling of the accelerator power and an additional instrument hall. The new instrument hall will receive a 467 kW 10 Hz beam. The parameters and preliminary design aspects of the STS are presented for the accelerator, target systems, instrument hall, instruments and civil construction aspects.

  17. Benchmarking and Evaluating Recongurable Architectures Targeting

    E-Print Network [OSTI]

    Luk, Wayne

    benchmarking suite that evaluates the power consumption of reconfigurable technology for applications targeting the mobile computing domain. This benchmark suite includes seven designs; one design targets fine-grained FPGA fabrics allowing for quick state- of-the-art evaluation, and six designs are specified at a high

  18. The Common Elements of Atomic and Hadronic Physics

    E-Print Network [OSTI]

    Brodsky, Stanley J

    2015-01-01

    Atomic physics and hadronic physics are both governed by the Yang Mills gauge theory Lagrangian; in fact, Abelian quantum electrodynamics can be regarded as the zero-color limit of quantum chromodynamics. I review a number of areas where the techniques of atomic physics can provide important insight into hadronic eigenstates in QCD. For example, the Dirac-Coulomb equation, which predicts the spectroscopy and structure of hydrogenic atoms, has an analog in hadron physics in the form of frame-independent light-front relativistic equations of motion consistent with light-front holography which give a remarkable first approximation to the spectroscopy, dynamics, and structure of light hadrons. The production of antihydrogen in flight can provide important insight into the dynamics of hadron production in QCD at the amplitude level. The renormalization scale for the running coupling is unambiguously set in QED; an analogous procedure sets the renormalization scales in QCD, leading to scheme-independent scale-fixed...

  19. Flat space physics from holography

    E-Print Network [OSTI]

    Bousso, Raphael

    2009-01-01

    thermodynamics in black hole physics. Phys. Rev. D 9, 3292 (LBNL-53861 Flat space physics from holography RaphaelBousso Center for Theoretical Physics, Department of Physics

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

    E-Print Network [OSTI]

    Audoly, Basile

    2012-01-01

    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

  1. Turbulent flow and drag over fixed two-and three-dimensional dunes Jeremy G. Venditti1,2

    E-Print Network [OSTI]

    Venditti, Jeremy G.

    Turbulent flow and drag over fixed two- and three-dimensional dunes Jeremy G. Venditti1,2 Received measurements of turbulent flow were obtained over a fixed flat bed, two- dimensional (2-D) dunes and four types of three-dimensional (3-D) dune morphologies including (1) full width saddles, (2) full width lobes, (3

  2. Stability of the numerical method of solving the 3D inverse scattering problem with fixed-energy data

    E-Print Network [OSTI]

    with fixed-energy data A G Ramm Mathematics Department, Kansas State University, Manhattan, KS 66506, USAStability of the numerical method of solving the 3D inverse scattering problem with fixed- energy data This article has been downloaded from IOPscience. Please scroll down to see the full text article

  3. Response of Free-Living Nitrogen-Fixing Microorganisms to Land Use Change in the Amazon Rainforest

    E-Print Network [OSTI]

    Bohannan, Brendan

    ) of this greenhouse gas annually (1, 2). To absorb this enormous amount of CO2, a sig- nificant input of nitrogen (NResponse of Free-Living Nitrogen-Fixing Microorganisms to Land Use Change in the Amazon Rainforest-living nitrogen-fixing microorganisms (di- azotrophs) respond to deforestation in the Amazon rainforest, using

  4. Aspects of Unparticle Physics

    E-Print Network [OSTI]

    Arvind Rajaraman

    2008-10-15

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

  5. particle physics 2009Highlights

    E-Print Network [OSTI]

    Report particle physics 2009ª #12;2 | Contents #12;Contents | 3 contentsª º introduction 4 º News;Introduction | 5 projects, (ii) coordination of national particle physics activities and (iii) reaching outparticle physics 2009ªHighlights and Annual Report Accelerators | Photon Science | Particle Physics

  6. Review of Particle Physics

    E-Print Network [OSTI]

    Nakamura, Kenzo

    2010-01-01

    careersvc/ • APS Careers in Physics: The American PhysicalAPS/DPF/DPB Summer Study on the Future of Particle Physics (APS Acta Physica Slovaca ARNPS Annual Review of Nuclear and Particle Science ARNS Annual Review of Nuclear Science ASP Astroparticle Physics

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

    DOE Patents [OSTI]

    Rau, Scott James

    2013-01-29

    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.

  8. Stability of solutions to inverse scattering problems with fixed-energy data

    E-Print Network [OSTI]

    Alexander G. Ramm

    2000-08-03

    A review of the author's results is given. Inversion formulas and stability estimates for the solutions to 3D inverse scattering problems with fixed-energy data are obtained. Inversions of exact and noisy data are stidied. The inverse potential scattering problem is discussed in detail, inversion formulas are derived and error estimates are obtained. Inverse obstacle scattering problem with data at a fixed frequency is studied. Uniqueness theorems and stability estimates are obtained. Inverse geophysical scattering problem is discussed. An algorithm for computing the Dirichlet-to-Neumann map from the scattering amplitude and vicxe versa is obtained. An analytical example of non-uniqueness of the solution to a 3D inverse geophysical problem is constructed. An inverse problem for a parabolic equation is discussed.

  9. Fully developed isotropic turbulence: nonperturbative renormalization group formalism and fixed point solution

    E-Print Network [OSTI]

    Léonie Canet; Bertrand Delamotte; Nicolás Wschebor

    2014-11-28

    We investigate the regime of fully developed homogeneous turbulence of the Navier-Stokes (NS) equation in the presence of a stochastic forcing. Using the nonperturbative (functional) version of the renormalization group (NPRG), we avoid all the difficulties that plague standard RG approaches to NS turbulence and have hindered real progress in the calculation of multi-scaling. We obtain the fixed point solution of the NPRG flow equations, which corresponds to fully developed turbulence, in $d=2$ and $d=3$ dimensions. The striking feature of this fixed point is that it does not entail the usual scale invariance, because of the absence of a regular limit when the integral scale (the typical length scale of energy injection) tends to infinity. We indeed show, on the basis of exact flow equations in the large wave-number limit, how violations to the Kolmogorov scaling can emerge, leaving the accurate determination of the ensuing intermittent exponents for future work.

  10. Development and Deployment of Fixed Wireless Access in South West Nigeria: Performance and Evaluation

    E-Print Network [OSTI]

    Adeniran, Oluwaranti

    2011-01-01

    Fixed Wireless Access (FWA) involves the use of wireless technology to replace copper to connect subscribers to the telephone network. It is a variant of wireless broadband which provides an alternative in the so-called 'last mile' connectivity between the subscriber and the fixed telecommunications network. FWA could either be narrowband or broadband and it is predominantly deployed using the Code Division Multiple Access (CDMA) technology. In assessing the extent of development and deployment of FWA, the perspective of the operators and users was elicited primarily through the use of questionnaires. Issues like setup cost, tax, Government incentive, availability of infrastructure and manpower applied to the operators while on the users' part factors like quality of service, signal strength as well as call rate were considered. The South western zone of Nigeria is regarded as one of the most urbanized regions in the south of Sahara, this is not out of place considering the fact that Lagos which is the nation...

  11. Measuring time with physical clocks

    E-Print Network [OSTI]

    Esteban Castro-Ruiz; Flaminia Giacomini; ?aslav Brukner

    2015-07-07

    In general relativity, the picture of spacetime assigns an ideal clock to each spacetime point. Being ideal, gravitational effects due to these clocks are ignored and the flow of time according to one clock is not affected by the presence of surrounding clocks. However, if time is defined operationally, as a pointer position of a physical clock that obeys the laws of quantum mechanics and general relativity, such a picture is at most a convenient fiction. We show that the mass-energy equivalence implies gravitational interaction between the clocks, while the superposition of energy eigenstates leads to a non-fixed metric background. Based only on the assumption that both quantum mechanics and general relativity are valid in this situation, we show that the clocks necessarily get entangled through time dilation effect, which eventually leads to a loss of coherence of a single clock. Hence, the time as measured by a single clock is not well-defined. However, the general relativistic notion of time is recovered in the classical limit of clocks.

  12. 5d fixed points from brane webs and O7-planes

    E-Print Network [OSTI]

    Bergman, Oren

    2015-01-01

    We explore the properties of five-dimensional supersymmetric gauge theories living on 5-brane webs in orientifold 7-plane backgrounds. These include $USp(2N)$ and $SO(N)$ gauge theories with fundamental matter, as well as $SU(N)$ gauge theories with symmetric and antisymmetric matter. We find a number of new 5d fixed point theories that feature enhanced global symmetries. We also exhibit a number of new 5d dualities.

  13. The Process of Fixing the British National Minimum Wage, 1997-2007

    E-Print Network [OSTI]

    Brown, William

    Minimum Wage, 1997-2007 William Brown Abstract The British National Minimum Wage was introduced in 1999 under the guidance of a Low Pay Commission constructed on a basis of ‘social partnership’. The paper analyses its conduct over its first... in The British Journal of Industrial Relations during 2009 All enquiries to William Brown, (william.brown@econ.cam.ac.uk), Faculty of Economics, Cambridge University 2 The Process of Fixing the British National Minimum Wage, 1997...

  14. Memorandum, Managed Phase Out of Halon Fixed Fire Suppression Systems- May 5, 1993

    Broader source: Energy.gov [DOE]

    The purpose of this memorandum is to provide additional interim departmental criteria on the management of the reduction and potential elimination of Halon fire extinguishing systems within the Department of Energy (DOE). This memorandum supplements the joint Office of Safety and Quality Assurance/Office of Projects and Facilities Management memorandum of September 27, 1990, in which guidance was provided on the installation of new Halon 1301 fixed fire suppression systems and halon 1211 portable fire extinguishers.

  15. 5d fixed points from brane webs and O7-planes

    E-Print Network [OSTI]

    Oren Bergman; Gabi Zafrir

    2015-08-15

    We explore the properties of five-dimensional supersymmetric gauge theories living on 5-brane webs in orientifold 7-plane backgrounds. These include $USp(2N)$ and $SO(N)$ gauge theories with fundamental matter, as well as $SU(N)$ gauge theories with symmetric and antisymmetric matter. We find a number of new 5d fixed point theories that feature enhanced global symmetries. We also exhibit a number of new 5d dualities.

  16. Rotary F1-ATPase Is the C-terminus of subunit c fixed or mobile?

    E-Print Network [OSTI]

    Junge, Wolfgang

    mobility of the C-terminal portion of c relative to (ab)3. Non-fluorescent, engineered F1 (aP280C/cA285CRotary F1-ATPase Is the C-terminus of subunit c fixed or mobile? Martin Mu¨ ller, Karin Gumbiowski, functionally connects the ion-driven rotary motor, FO, with the rotary chemical reactor, F1. Using polarized

  17. On inverse problems in electromagnetic field in classical mechanics at fixed energy

    E-Print Network [OSTI]

    Alexandre Jollivet

    2007-01-04

    In this paper, we consider inverse scattering and inverse boundary value problems at sufficiently large and fixed energy for the multidimensional relativistic and nonrelativistic Newton equations in a static external electromagnetic field $(V,B)$, $V\\in C^2,$ $B\\in C^1$ in classical mechanics. Developing the approach going back to Gerver-Nadirashvili 1983's work on an inverse problem of mechanics, we obtain, in particular, theorems of uniqueness.

  18. Large Lagrangian Actions on Elliptical Solutions of 2-Body and 3-Body Problems with Fixed Energies

    E-Print Network [OSTI]

    Ying Lv; Shiqing Zhang

    2011-12-04

    Based on the works of Gordon ([4]) and Zhang-Zhou([8])) on the variational minimizing properties for Keplerian orbits and Lagrangian solutions of Newtonian 2-body and 3-body problems, we use the constrained variational principle of Ambrosetti-Coti Zelati ([1]) to compute the Lagrangian actions on Keplerian and Lagrangian elliptical solutions with fixed energies, we also find an interesting relationship between period and energy for Lagrangian elliptical solutions with Newtonian potentials.

  19. An algorithm for determining EF coils from fixed-boundary equilibria applied to ARIES III

    SciTech Connect (OSTI)

    Bathke, C. (Los Alamos National Lab., NM (United States)); Jardin, S.C.; Kessel, C.E. (Princeton Univ., NJ (United States). Plasma Physics Lab.)

    1991-01-01

    An algorithm that determines the external EF coils required to produce equilibria calculated by high-resolution, fixed-boundary codes is described. The algorithm permits the specification of the poloidal-field-null location. The EF-coil positions on a specified surface located just outside of the TF coils are optimized to minimize the stored magnetic energy. Results of the application of this algorithm to ARIES-3 are also presented. 7 refs., 2 figs., 2 tabs.

  20. 5d fixed points from brane webs and O7-planes

    E-Print Network [OSTI]

    Oren Bergman; Gabi Zafrir

    2015-07-14

    We explore the properties of five-dimensional supersymmetric gauge theories living on 5-brane webs in orientifold 7-plane backgrounds. These include $USp(2N)$ and $SO(N)$ gauge theories with fundamental matter, as well as $SU(N)$ gauge theories with symmetric and antisymmetric matter. We find a number of new 5d fixed point theories that feature enhanced global symmetries. We also exhibit a number of new 5d dualities.

  1. Health Physics Technician | Princeton Plasma Physics Lab

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

    Technician Department: ESH&S Staff: TSS04 Requisition Number: 1500441 Perform health physics support in the area of radiological assessment and implementation of radiation safety...

  2. Micro-fabrication Techniques for Target Components

    SciTech Connect (OSTI)

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

    2008-06-10

    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.

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

    DOE Patents [OSTI]

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

    2007-06-26

    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.

  4. Nonlinear ultimate strength analysis of fixed offshore platforms for earthquake environments

    SciTech Connect (OSTI)

    Chang, S.S. [Hudson Engineering Corp., Houston, TX (United States)

    1995-12-01

    The design of an offshore platform usually requires the use of ASME B31.3 and API (American Petroleum Institute) RP 2A design codes. ASME B31.3 addresses the design of pressure piping systems for offshore facilities while API RP 2A ``Recommended Practice for Planning, Designing and Constructing Fixed Offshore Platforms`` (WSD or LRFD) addresses the structural design. This paper first identifies the difference between the ASME B31.3 and API RP 2A on the earthquake load requirements. Second, the paper presents a nonlinear static pushover analysis of a typical fixed offshore platform subject to a ductility level earthquake in 394 ft (120 m) of water depth. The analysis uses a three-dimensional structural model consisting of STRUT, BEAM-COLUMN and LINEAR BEAM elements to determine the structural response while properly accounting for structure-pile-soil interaction effort. Finally, the status of current on-going efforts to implement the API RP 2A code (LRFD version) to the ISO code (International Organization for Standardization), particularly on the earthquake resistant design aspect of fixed offshore the platforms, is briefly reported.

  5. Graduate Studies in Physics Ph.D. in Physics

    E-Print Network [OSTI]

    Graduate Studies in Physics Ph.D. in Physics M.Sc. in Physics (with thesis) M.Sc. in Physics (with major paper) M.Sc. in Physics (coursework only) www.uwindsor.ca/physics Research Facilities The Physics students an opportunity to be trained in developing new laboratory apparatus. Library resources for physics

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

    SciTech Connect (OSTI)

    Ball, S.J. [ed.

    1997-04-01

    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.

  7. ESO Imaging Survey: Finding Targets for VLT

    E-Print Network [OSTI]

    L. N. da Costa

    1998-09-16

    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)

  8. Diagnostics for High Power Targets and Dumps

    E-Print Network [OSTI]

    Gschwendtner, E

    2012-01-01

    High power targets are generally used for neutrino, antiproton, neutron and secondary beam production whereas dumps are needed in beam waste management. In order to guarantee an optimized and safe use of these targets and dumps, reliable instrumentation is needed; the diagnostics in high power beams around targets and dumps is reviewed. The suite of beam diagnostics devices used in such extreme environments is discussed, including their role in commissioning and operation. The handling and maintenance of the instrumentation components in high radiation areas is also addressed.

  9. Self-assessing target with automatic feedback

    DOE Patents [OSTI]

    Larkin, Stephen W.; Kramer, Robert L.

    2004-03-02

    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.

  10. Automated High Throughput Drug Target Crystallography

    SciTech Connect (OSTI)

    Rupp, B

    2005-02-18

    The molecular structures of drug target proteins and receptors form the basis for 'rational' or structure guided drug design. The majority of target structures are experimentally determined by protein X-ray crystallography, which as evolved into a highly automated, high throughput drug discovery and screening tool. Process automation has accelerated tasks from parallel protein expression, fully automated crystallization, and rapid data collection to highly efficient structure determination methods. A thoroughly designed automation technology platform supported by a powerful informatics infrastructure forms the basis for optimal workflow implementation and the data mining and analysis tools to generate new leads from experimental protein drug target structures.

  11. Qualifying Examination Thermal Physics

    E-Print Network [OSTI]

    Gustafsson, Torgny

    of this molecule is fixed while a force, f, is applied to another end. Find the free energy of the molecule efficient way to heat the house to temperature T when the outside tem- perature is T0 given the source of electrical energy. Assume that electrical energy can be converted to mechanical energy without loss

  12. Kando, M.; Esirkepov, T.Zh.; and others 70 PLASMA PHYSICS AND...

    Office of Scientific and Technical Information (OSTI)

    targets Pirozhkov, A.S.; Kando, M.; Esirkepov, T.Zh.; and others 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; BEAM-PLASMA SYSTEMS; ELECTRON DENSITY; EV RANGE; HARMONIC GENERATION;...

  13. DOCTORAL PROGRAMME MATHEMATICS AND PHYSICS, Subprogramme PHYSICS,

    E-Print Network [OSTI]

    ?umer, Slobodan

    Safety Administration, Agency for Radioactive Waste Management and other organisations in the nuclear knowledge in energy conversion in nuclear power systems, design and operation of fission reactors, methods acquires a deeper knowledge of reactor physics and related nuclear physics basics. The student is trained

  14. Procedia PHYSICS 00 (2010) 14 Procedia Physics

    E-Print Network [OSTI]

    Adler, Joan

    2010-01-01

    Procedia PHYSICS 00 (2010) 1­4 Procedia Physics Visualization of nanodiamond formation in molten the characteristics and visualization of simulations of nanodiamond clusters grown from molten carbon. The general trends of nanodiamond size and quality as functions of growth conditions resemble those found

  15. PHYSICS 7397: NanoPhysics Spring 2010

    E-Print Network [OSTI]

    Peng, Haibing

    to Semiconductor Physics: Band structure, PN junction, Schottky barrier, and MOS structure. 2. Electron Transport) Physics of semiconductor devices / S.M. Sze and Kwok K. Ng. 3rd ed. Place/Publisher Hoboken, NJ : Wiley's responsibility to read and understand the Academic Honesty Policy found in the Student Handbook, which can

  16. Nanotechnology-mediated targeting of tumor angiogenesis

    E-Print Network [OSTI]

    Banerjee, Deboshri

    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 ...

  17. 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...

  18. Tagging and Targeting of Energy Efficiency Subsidies

    E-Print Network [OSTI]

    Allcott, Hunt

    A corrective tax or subsidy is "well-targeted" if it primarily affects choices that are more distorted by market failures. Energy efficiency subsidies are designed to correct multiple distortions: externalities, credit ...

  19. Statistical Modeling of Single Target Cell Encapsulation

    E-Print Network [OSTI]

    Moon, SangJun

    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 ...

  20. Improved Gene Targeting through Cell Cycle Synchronization

    E-Print Network [OSTI]

    Tsakraklides, Vasiliki

    Gene targeting is a challenge in organisms where non-homologous end-joining is the predominant form of recombination. We show that cell division cycle synchronization can be applied to significantly increase the rate of ...

  1. Targeting cancer metabolism: a therapeutic window opens

    E-Print Network [OSTI]

    Vander Heiden, Matthew G.

    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 ...

  2. Analysis of Climate Policy Targets under Uncertainty

    E-Print Network [OSTI]

    Jacoby, Henry D.

    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 ...

  3. Improving Targeted Radionuclide Therapy Using Nuclear Nanotechnology 

    E-Print Network [OSTI]

    Evans, Jordan Andrew

    2013-05-03

    The objectives of this thesis are to produce radioactive antibody-conjugated gold nanoparticles to improve the efficacy of targeted radionuclide therapy for the treatment of cancer, and to demonstrate that this product can be produced at Texas A...

  4. Thermal-hydraulic analysis of the LANL/IPPE/EDO-GP 1-MW LBE target

    SciTech Connect (OSTI)

    He, X.; Ammerman, C.; Woloshun, K.; Li, N.

    2000-07-01

    The accelerator-driven transmutation of waste (ATW) concept has been proposed by the United States and other countries to transmute plutonium, higher actinides, and other environmentally hazardous fission products. One of the key components in the ATW concept is a target that, via spallation, produces neutrons to transmute nuclear waste. Since significant heat is generated during fissioning of the waste actinides, an efficient heat removal system is necessary. Liquid lead-bismuth eutectic (LBE) is an efficient coolant as well as a good spallation target for production of neutrons. The LBE coolant technology has been successfully used in Russian submarine nuclear reactors. The International Science and Technology Center (ISTC) has funded the Institute of Physics and Power Engineering (IPPE) and the Experiment and Design Organization-Gidropress (EDO-GP) of Russia to design and manufacture a pilot target (Target Circuit One-TC1) that incorporates Russian LBE technology into the ATW concept. The target will be tested in the 800-MeV, 1-mA proton beam at the Los Alamos National Laboratory (LANL) in 2 yr. These target experiments will provide valuable information on the performance of LBE as both spallation target and coolant. They will also help to design target/blanket systems for future ATW facilities. In summary, the authors have carried out thermal-hydraulic analyses for the LANL/IPPE/EDO-GP 1-MW LBE target. It is shown that the current design is suitable for the beam-on tests. The diffuser plate successfully enhances the coolant flow around the window center but still avoids generating recirculation zone downstream. The temperature range is within the proper operation range for both the LBE coolant and the structural materials.

  5. Physics Prospects with GlueX

    SciTech Connect (OSTI)

    Alexander Somov

    2011-10-01

    The new experiment GlueX is being currently constructed at Jefferson Lab. The experiment was designed to search for hybrid mesons with exotic-quantum-numbers using a beam of linearly polarized photons incident on a liquid hydrogen target. We will discuss the discovery potential of the GlueX experiment and briefly overview its physics program. GlueX is a new experiment at Jefferson Lab. whose physics program is intended to improve our knowledge of strong interactions. The main goal of the experiment is to search for gluonic excitations in photoproduction. The experiment is expected to collect a data sample a few order of magnitudes larger than all existing photoproduction data. The physics topics of the experiment spans from light meson spectroscopy to Primakoff production of pseudoscalar mesons. The construction of the experiment has started in 2009 and the commissioning stage is expected to be finished in 2015.

  6. Method and apparatus for producing cryogenic targets

    DOE Patents [OSTI]

    Murphy, James T. (Los Alamos, NM); Miller, John R. (Penfield, NY)

    1984-01-01

    An improved method and apparatus are given for producing cryogenic inertially driven fusion targets in the fast isothermal freezing (FIF) method. Improved coupling efficiency and greater availability of volume near the target for diagnostic purposes and for fusion driver beam propagation result. Other embodiments include a new electrical switch and a new explosive detonator, all embodiments making use of a purposeful heating by means of optical fibers.

  7. Method and apparatus for producing cryogenic targets

    DOE Patents [OSTI]

    Murphy, J.T.; Miller, J.R.

    1984-08-07

    An improved method and apparatus are given for producing cryogenic inertially driven fusion targets in the fast isothermal freezing (FIF) method. Improved coupling efficiency and greater availability of volume near the target for diagnostic purposes and for fusion driver beam propagation result. Other embodiments include a new electrical switch and a new explosive detonator, all embodiments making use of a purposeful heating by means of optical fibers. 6 figs.

  8. Cryostat including heater to heat a target

    DOE Patents [OSTI]

    Pehl, R.H.; Madden, N.W.; Malone, D.F.

    1990-09-11

    A cryostat is provided which comprises a vacuum vessel; a target disposed within the vacuum vessel; a heat sink disposed within the vacuum vessel for absorbing heat from the detector; a cooling mechanism for cooling the heat sink; a cryoabsorption mechanism for cryoabsorbing residual gas within the vacuum vessel; and a heater for maintaining the target above a temperature at which the residual gas is cryoabsorbed in the course of cryoabsorption of the residual gas by the cryoabsorption mechanism. 2 figs.

  9. Current status of the liquid lithium target

    E-Print Network [OSTI]

    McDonald, Kirk

    in target (mm) 252 x 125Maximum beam current (mA) ~1~10~100Beam spot on the target (cm2) >2 (peak)0.52.5Beam Water direction #12;15 Be Trap Heat Exchanger Cross Section Design to remove ~12 kW Lithium tank #12;Oil cycle Flexible tubes Oil pump Heat exchanger Oil chamber Inside the lab Outside the lab #12;Elect

  10. PHYSICS 122 LABORATORY (Winter, 2015)

    E-Print Network [OSTI]

    Yoo, S. J. Ben

    - 1 - PHYSICS 122 LABORATORY (Winter, 2015) COURSE GOALS 1. Learn how Tyson 514 Physics tyson@physics.ucdavis.edu 752-3830 Xiangdong Zhu 235 Physics zhu@physics.ucdavis.edu 752-4689 TEACHING ASSISTANTS: Andrew Bradshaw 518

  11. Nuclear Exclusive and Semi-inclusive Physics with a New CLAS12 Low

    E-Print Network [OSTI]

    Gilfoyle, Jerry

    of the processes needed to research these subjects require the detection of a low momentum recoil particle 5 2 Physics Topics 5 2.1 Coherent and incoherent DVCS on helium 5 2.2 Coherent DVCS on deuterium target 10 2.3 Neutron DVCS using deuterium and helium targets 11 2.4 Exclusive 0 electroproduction

  12. Design of the fill/transfer station cryostat for the OMEGA cryogenic target system

    SciTech Connect (OSTI)

    Gibson, C.R.; Charmin, C.M.; Del Bene, J.V.; Hoffmann, E.H.; Besenbruch, G.E.; Anteby, I.

    1997-09-01

    General Atomics is designing, testing and fabricating a system for supplying cryogenic targets for the University of Rochester`s OMEGA laser system. A prototype system has demonstrated the filling of 1 mm diameter, 3 {micro}m wall plastic spheres to 111 MPa (1,100 atm) with deuterium and then cooling to 18 K to condense the fuel. The production design must be capable of routinely filling and cooling targets with a 50/50 mix of deuterium and tritium and transferring them to a device which places the targets into the focus of 60 laser beams. This paper discusses the design and analysis of the production Fill/Transfer Station cryostat. The cryostat has two major components, a fixed base and a removable dome. The joint between the base and the dome is similar to a bayonet fitting and is sealed by a room temperature elastomeric o-ring. Since the cryostat must be housed in a glovebox, its design is driven strongly by maintenance requirements. To reach the equipment inside the cryostat, the dome is simply unbolted and lifted. The inside of the cryostat is maintained at 16 K by a closed loop helium flow system. Gaseous helium at about 1.4 MPa (200 psi) flows through tubes which are brazed to the inner walls. Cooling is provided by several cryocoolers which are located external to the cryostat. Liquid nitrogen is used as a heat intercept and to precool the helium gas.

  13. Princeton Plasma Physics Laboratory

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

    Plasma Physics Laboratory P.O. Box 451 Princeton, NJ 08543-0451 GPS: 100 Stellarator Road Princeton, NJ 08540 www.pppl.gov 2015 Princeton Plasma Physics Laboratory. A...

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

    E-Print Network [OSTI]

    Yosef Nir

    2007-08-14

    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.

  15. Review of Higgs physics

    E-Print Network [OSTI]

    Ocariz, Jose; The ATLAS collaboration

    2015-01-01

    The eperimental status on Higgs boson physics is reviewed. Results from both ATLAS and CMS, using data collected in LHC run 1, are presented. Prospects for Higgs physics with Run 2 and beyond are discussed.

  16. Future Physics | Jefferson Lab

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

    Future Physics March 5, 2009 In late January, we held a meeting of our Physics Advisory Committee, PAC34 to be precise. We had two primary goals for the PAC, one related to the...

  17. Physics and Consciousness

    E-Print Network [OSTI]

    Patricio Perez

    1995-10-17

    Some contributions of physics towards the understanding of consciousness are described. As recent relevant models, associative memory neural networks are mentioned. It is shown that consciousness and quantum physics share some properties. Two existing quantum models are discussed.

  18. Polymer Physics Research Profile

    E-Print Network [OSTI]

    Giger, Christine

    Polymer Physics Research Profile Our main interests are the theory of simplification and some behavior on different autonomous levels of description. Our favorite applications range from polymer + Nonequilibrium Thermodynamics + Coarse Graining + Soft Matter + Polymer Physics + Rheology + Competences

  19. PHYSICS 660: Homework 1

    E-Print Network [OSTI]

    2015-09-24

    PHYSICS 660: Homework 1. Yingwei Wang ?. Department of Mathematics, Purdue University, West Lafayette, IN, USA. 1 Modified Schrödinger equation.

  20. Center for Beam Physics

    E-Print Network [OSTI]

    Chattopadhyay, S.

    2010-01-01

    Krishnagopal of CAT, Indore, India, we are also developing aon Beam Physics at CAT, Indore, India and Telecourse on Beam