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1

Nuclear Physics (NP) Homepage | U.S. DOE Office of Science (SC)  

NLE Websites -- All DOE Office Websites (Extended Search)

NP Home NP Home Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Funding Opportunities Nuclear Science Advisory Committee (NSAC) News & Resources Contact Information Nuclear Physics U.S. Department of Energy SC-26/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3613 F: (301) 903-3833 E: sc.np@science.doe.gov More Information » Accelerating Innovation .pdf file (1.2MB) Nuclear Physics supports the experimental and theoretical research needed to create a roadmap of matter that will help unlock the secrets of how the universe and everything in it is put together.Read More .pdf file (1.2MB) Accelerating Innovation What is Nuclear Physics? .pdf file (1.2MB) Nuclear physicists study the fundamental building blocks of matter, from

2

NP2010: An Assessment and Outlook for Nuclear Physics  

SciTech Connect

This grant provided partial support for the National Research Councils (NRC) decadal survey of nuclear physics. This is part of NRCs larger effort to assess and discuss the outlook for different fields in physics and astronomy, Physics 2010, which takes place approximately every ten years. A report has been prepared as a result of the study that is intended to inform those who are interested about the current status of research in this area and to help guide future developments of the field. A pdf version of the report is available for download, for free, at http://www.nap.edu/catalog.php?record_id=13438. Among the principal conclusions reached in the report are that the nuclear physics program in the United States has been especially well managed, principally through a recurring long-range planning process conducted by the community, and that current opportunities developed pursuant to that planning process should be exploited. In the section entitled Building the Foundation for the Future, the report notes that attention needs to be paid to certain elements that are essential to the continued vitality of the field. These include ensuring that education and research at universities remain a focus for funding and that a plan be developed to ensure that forefront-computing resources, including exascale capabilities when developed, be made available to nuclear science researchers. The report also notes that nimbleness is essential for the United States to remain competitive in a rapidly expanding international nuclear physics arena and that streamlined and flexible procedures should be developed for initiating and managing smaller-scale nuclear science projects.

Lancaster, James

2014-05-22T23:59:59.000Z

3

EXPERIMENTAL AND CALCULATED RESEARCHES OF NUCLEAR-PHYSICS CHARACTERISTICS OF ASSEMBLIES CONTAINING [237Np + 239Pu(98%)] IN TH  

National Nuclear Security Administration (NNSA)

And Calculated Researches of Nuclear-Physics Characteristics And Calculated Researches of Nuclear-Physics Characteristics Of Assemblies Containing [ 237 Np + 239 Pu(98%)] in The Core and Reflector of Natural Uranium V.I.Gavrilov, I.Yu.Drozdov, N.V.Zavialov, V.I.Il'in, A.A.Kajgorodov, M.I.Kuvshinov, A.V.Panin Russian Federal Nuclear Center All-Russia Scientific Research Institute of Experimental Physics Neptunium 237 seems to be a promising material as a core component of such systems as pulsed reactors [2] and cascade blankets for electronuclear facilities [1]. To realize calculated simulation of such facilities it is required to know neutron-physics data for the materials included. In this respect 237 Np is a little-studied material. Thus, the rated values of critical mass for a "bare" sphere of

4

LANL | Physics | Nuclear Physics  

NLE Websites -- All DOE Office Websites (Extended Search)

Leaders in nuclear physics Physics Division scientists and engineers play an important role in the Laboratory's Nuclear Physics program, funded by the Department of Energy's Office...

5

Large Scale Computing and Storage Requirements for Nuclear Physics  

NLE Websites -- All DOE Office Websites (Extended Search)

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

6

Nuclear Resonance Fluorescence of 237 Np  

SciTech Connect

Identification and characterization of fissile material is of international concern because of the possibility of proliferation. For safeguards applications, techniques providing isotopic information are necessary [1]. However, few techniques can distinguish between fissile isotopes. Nuclear resonance fluorescence is one technique that can be used in applications to identify and quantify isotopic content. NRF has also been proposed in several detector systems as a viable way to identify fissile material in cargo containers [2, 3]. It is necessary to measure the characteristic resonances of each isotope that is to be distinguished in identification and assay applications.

Angell, Chris T.; Yee, R.; Joshi, T.; Swanberg, E.; Norman, E. B.; Hicks, C. L.; Klimenko, A.; Korbly, Steve; Wilson, C.; Kulp, W. D.; Warren, Glen A.; Bray, T. H.; Copping, R.; Glans, P.A.; Tyliszczak, T.; Shuh, David K.

2010-11-15T23:59:59.000Z

7

Global Nuclear Energy Initiative at LBNL | U.S. DOE Office of...  

Office of Science (SC) Website

Global Nuclear Energy Initiative at LBNL Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Applications of Nuclear Science Applications of...

8

Nuclear Physics  

NLE Websites -- All DOE Office Websites (Extended Search)

Underground Research Facility in South Dakota, which will search for neutrinoless double-beta decay. Strong Los Alamos programs in nuclear data and nuclear theory supports...

9

NP Committees of Visitors | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

NP Committees NP Committees of Visitors Nuclear Science Advisory Committee (NSAC) NSAC Home Meetings Members Charges/Reports Charter .pdf file (629KB) NP Committees of Visitors NP Home NP Committees of Visitors Print Text Size: A A A RSS Feeds FeedbackShare Page Office of Nuclear Physics (NP) DOE/NSF Nuclear Science Advisory Committee (NSAC) 2013 NSAC COV Report on NP Program .pdf file (1.8MB) NP Response to NSAC COV Report on NP .pdf file (56KB) 2010 NSAC COV Report on NP Program .pdf file (410KB) NP Response to NSAC COV Report on NP .pdf file (32KB) 2007 NSAC COV Report on NP Program .pdf file (185KB) NP Response to NSAC COV Report on NP .pdf file (103KB) 2004 NSAC COV Report on NP Program .pdf file (148KB) NP Response to NSAC COV Report on NP .pdf file (292KB) Last modified: 5/10/2013 3:44:25

10

Nuclear Physics Related Brochures | U.S. DOE Office of Science (SC)  

NLE Websites -- All DOE Office Websites (Extended Search)

Nuclear Nuclear Physics Related Brochures and Videos Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Funding Opportunities Nuclear Science Advisory Committee (NSAC) News & Resources NP Workforce Survey Results .pdf file (258KB) Links Databases Workshop Reports Nuclear Physics Related Brochures and Videos Contact Information Nuclear Physics U.S. Department of Energy SC-26/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3613 F: (301) 903-3833 E: sc.np@science.doe.gov More Information » News & Resources Nuclear Physics Related Brochures and Videos Print Text Size: A A A RSS Feeds FeedbackShare Page Brochures Accelerating Innovation NP Highlights Image Accelerating Innovation (2011) .pdf file (1.2MB): How nuclear physics benefits us all

11

Nuclear Physics with trapped  

E-Print Network (OSTI)

Nuclear Physics with trapped atoms and ions #12;2/2/2013Dan Melconian #12;2/2/2013Dan Melconian Outline · Scope and applications of nuclear physics precision frontier compliments LHC properties and aquifers in the Sahara #12;2/2/2013Dan Melconian What is Nuclear Physics? · Began with the study

Boas, Harold P.

12

Whither Nuclear Physics ?  

E-Print Network (OSTI)

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

Syed Afsar Abbas

2008-01-07T23:59:59.000Z

13

Nuclear Physics: Experiment Research  

NLE Websites -- All DOE Office Websites (Extended Search)

search Nuclear Physics Program Please upgrade your browser. This site's design is only visible in a graphical browser that supports web standards, but its content is accessible to...

14

Nuclear Physics from QCD  

E-Print Network (OSTI)

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

U. van Kolck

2008-12-20T23:59:59.000Z

15

Nuclear Physics Program  

NLE Websites -- All DOE Office Websites (Extended Search)

Office Data Acquisition Group Detector & Imaging Group Electronics Group User Liaison Nuclear Physics Program HALL A Hall A wide shot of detectors Scientists from across the...

16

NP Budget | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Budget Budget Nuclear Physics (NP) NP Home About Staff Organization Chart .pdf file (32KB) NP Budget NP Committees of Visitors Directions Jobs Labs & Universities Nuclear Physics Related Brochures Research Facilities Science Highlights Benefits of NP Funding Opportunities Nuclear Science Advisory Committee (NSAC) News & Resources Contact Information Nuclear Physics U.S. Department of Energy SC-26/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3613 F: (301) 903-3833 E: sc.np@science.doe.gov More Information » About NP Budget Print Text Size: A A A RSS Feeds FeedbackShare Page The following links contain NP's budget request to Congress for current and prior years: FY2014 Budget Request to Congress .pdf file (874KB) FY2013 Budget Request to Congress .pdf file (358KB)

17

NP Committees of Visitors | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Committees of Committees of Visitors Nuclear Physics (NP) NP Home About Staff Organization Chart .pdf file (32KB) NP Budget NP Committees of Visitors Directions Jobs Labs & Universities Nuclear Physics Related Brochures Research Facilities Science Highlights Benefits of NP Funding Opportunities Nuclear Science Advisory Committee (NSAC) News & Resources Contact Information Nuclear Physics U.S. Department of Energy SC-26/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3613 F: (301) 903-3833 E: sc.np@science.doe.gov More Information » About NP Committees of Visitors Print Text Size: A A A RSS Feeds FeedbackShare Page Office of Nuclear Physics (NP) DOE/NSF Nuclear Science Advisory Committee (NSAC) 2013 NSAC COV Report on NP Program .pdf file (1.8MB)

18

Nuclear physics and cosmology  

SciTech Connect

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

Coc, Alain [Centre de Sciences Nuclaires et de Sciences de la Matire (CSNSM), CNRS/IN2P3, Universit Paris Sud 11, UMR 8609, Btiment 104, F-91405 Orsay Campus (France)

2014-05-09T23:59:59.000Z

19

NP-NearFinal  

NLE Websites -- All DOE Office Websites (Extended Search)

NP / ASCR NP / ASCR Requirements Workshop May 26 and 27, 2011 LARGE SCALE COMPUTING AND STORAGE REQUIREMENTS Nuclear Physics Large Scale Computing and Storage Requirements for Nuclear Physics i Large Scale Computing and Storage Requirements for Nuclear Physics ii DISCLAIMER This report was prepared as an account of a workshop sponsored by the U.S. Department of Energy. Neither the United States Government nor any agency thereof, nor any of their employees or officers, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product,

20

(Nuclear theory). [Research in nuclear physics  

SciTech Connect

This report discusses research in nuclear physics. Topics covered in this paper are: symmetry principles; nuclear astrophysics; nuclear structure; quark-gluon plasma; quantum chromodynamics; symmetry breaking; nuclear deformation; and cold fusion. (LSP)

Haxton, W.

1990-01-01T23:59:59.000Z

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


21

Nuclear Physics | Jefferson Lab  

NLE Websites -- All DOE Office Websites (Extended Search)

Proposal PAC Review Scheduling Processes top-right bottom-left-corner bottom-right-corner Nuclear Physics Scientists from across the country and around the world use the Thomas...

22

Basic Research for an Era of Nuclear Energy at LBNL, LLNL, AND...  

Office of Science (SC) Website

Basic Research for an Era of Nuclear Energy at LBNL, LLNL, AND LANL Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Applications of Nuclear...

23

NP Spinoff Applications  

NLE Websites -- All DOE Office Websites (Extended Search)

benefits-of-np/spinoff-applications/ The benefits-of-np/spinoff-applications/ 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 national importance. It oversees - and is the principal federal funding agency of - the Nation's research programs in high-energy physics, nuclear physics, and fusion energy sciences. en {E2B4AF1B-93AA-4FC1-9D32-02D3DDE2C9C6}http://science.energy.gov/np/highlights/2013/np-2013-08-a/ Massive Energy Storage in Semiconductors (SMES) Novel high temperature superconductor magnet technology charts new territory.

24

About Nuclear Physics | Jefferson Lab  

NLE Websites -- All DOE Office Websites (Extended Search)

Virtual Tour JLab Video Brochures top-right bottom-left-corner bottom-right-corner ABOUT NUCLEAR PHYSICS Nuclear physics is an important pursuit because the study of the nucleus...

25

Nuclear Physics Review  

SciTech Connect

Anchoring low-energy nuclear physics to the fundamental theory of strong interactions remains an outstanding challenge. I review the current progress and challenges of the endeavor to use lattice QCD to bridge this connection. This is a particularly exciting time for this line of research as demonstrated by the spike in the number of different collaborative efforts focussed on this problem and presented at this conference. I first digress and discuss the 2013 Ken Wilson Award.

Walker-Loud, Andre

2014-11-01T23:59:59.000Z

26

Nuclear Physics for Nuclear Fusion  

SciTech Connect

The nuclear fusion data for deuteron-triton resonance near 100 keV are found to be consistent with the selective resonant tunneling model. The feature of this selective resonant tunneling is the selectivity. It selects not only the energy level, but also the damping rate (nuclear reaction rate). When the Coulomb barrier is thin and low, the resonance selects the fast reaction channel; however, when the Coulomb barrier is thick and high, the resonance selects the slow reaction channel. This mechanism might open an approach toward fusion energy with no strong nuclear radiation.

Li Xingzhong [Tsinghua University (China)

2002-01-15T23:59:59.000Z

27

Particle Physics, Nuclear Physics and Nuclear Energy  

Science Journals Connector (OSTI)

Particle physics is a frontier subject which studies the smallest constituents of matter and the laws governing their interactions. It plays an important role in studying the origin and evolution of the univer...

Hesheng Chen

2011-01-01T23:59:59.000Z

28

Nuclear Physics Jobs  

Office of Science (SC) Website

about/jobs/ Below is a list of currently open about/jobs/ Below is a list of currently open federal employment opportunities in the Office of Science. Prospective applicants should follow the links to the formal position announcements on USAJOBS.gov for more information. en {4D2B856C-39AE-4755-B38E-91319C75F8C9}https://www.usajobs.gov/GetJob/ViewDetails/358553800 Physicist Facilities & Project Management Division Job Title: Physicist Facilities & Project Management DivisionOffice: Nuclear PhysicsURL: USAjobs listingVacancy Number: 14-DE-SC-HQ-003Location: Germantown, MDOpened: 01/14/2014Closes:

29

X WORKSHOP ON NUCLEAR PHYSICS (WONP 2005)  

E-Print Network (OSTI)

First Call X WORKSHOP ON NUCLEAR PHYSICS (WONP´ 2005) The X International Workshop on Nuclear Physics, Nuclear Physics, Particles and Fields, Physics of Beams, Radiation Physics, Radiation Protection Manso Guevara Nuclear Physics Department Instituto Superior de Tecnologias y Ciencias Aplicadas (In

Stevenson, Paul

30

Nuclear Physics of Neutron Stars  

E-Print Network (OSTI)

Understanding the equation of state (EOS) of cold nuclear matter, namely, the relation between the pressure and energy density, is a central goal of nuclear physics that cuts across a variety of disciplines. Indeed, the limits of nuclear existence, the collision of heavy ions, the structure of neutron stars, and the dynamics of core-collapse supernova, all depend critically on the equation of state of hadronic matter. In this contribution I will concentrate on the special role that nuclear physics plays in constraining the EOS of cold baryonic matter and its impact on the properties of neutron stars.

J. Piekarewicz

2009-01-28T23:59:59.000Z

31

Physics in nuclear safeguards  

Science Journals Connector (OSTI)

International agreements demand that rigorous control procedures are applied to nuclear material. Containment and surveillance techniques are used to monitor the security aspects of dealing with the material whilst accountancy provides quantitative information. The author shows that the methods used to control nuclear material can be conveniently broken down into these two parts

B.W. Hooton

1984-01-01T23:59:59.000Z

32

Nuclear Physics with Electroweak Probes  

E-Print Network (OSTI)

In recent years, the italian theoretical Nuclear Physics community has played a leading role in the development of a unified approach, allowing for a consistent and fully quantitative description of the nuclear response to electromagnetic and weak probes. In this paper I review the main achievements in both fields, point out some of the open problems, and outline the most promising prospects.

Omar Benhar

2009-02-26T23:59:59.000Z

33

Research in theoretical nuclear physics  

SciTech Connect

The work done during the past year or so may be divided into three separate areas, low energy nuclear reactions, intermediate energy physics and nuclear structure studies. In this paper, we shall separately summarize our achievements made in these three areas.

Udagawa, Takeshi.

1990-10-01T23:59:59.000Z

34

NP Science Highlights  

NLE Websites -- All DOE Office Websites (Extended Search)

highlights/ The Office of Science is the highlights/ 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 national importance. It oversees - and is the principal federal funding agency of - the Nation's research programs in high-energy physics, nuclear physics, and fusion energy sciences. en {B0DFBA1D-D6A0-4920-8E73-4779F8F5ACEA}http://science.energy.gov/np/highlights/2013/np-2013-12-a/ Modeling Cosmic Nucleosynthesis First measurements of isotopes produced by Argonne's new CARIBU facility provide insight into the creation of the elements in the universe. Thu, 09

35

Neutrinos in Nuclear Physics  

E-Print Network (OSTI)

Since the discovery of nuclear beta decay, nuclear physicists have studied the weak interaction and the nature of neutrinos. Many recent and current experiments have been focused on the elucidation of neutrino oscillations and neutrino mass. The quest for the absolute value of neutrino mass continues with higher precision studies of the tritium beta decay spectrum near the endpoint. Neutrino oscillations are studied through measurements of reactor neutrinos as a function of baseline and energy. And experiments searching for neutrinoless double beta decay seek to discover violation of lepton number and establish the Majorana nature of neutrino masses.

McKeown, R D

2014-01-01T23:59:59.000Z

36

Large Scale Computing and Storage Requirements for Nuclear Physics Research  

SciTech Connect

IThe National Energy Research Scientific Computing Center (NERSC) is the primary computing center for the DOE Office of Science, serving approximately 4,000 users and hosting some 550 projects that involve nearly 700 codes for a wide variety of scientific disciplines. In addition to large-scale computing resources NERSC provides critical staff support and expertise to help scientists make the most efficient use of these resources to advance the scientific mission of the Office of Science. In May 2011, NERSC, DOEs Office of Advanced Scientific Computing Research (ASCR) and DOEs Office of Nuclear Physics (NP) held a workshop to characterize HPC requirements for NP research over the next three to five years. The effort is part of NERSCs continuing involvement in anticipating future user needs and deploying necessary resources to meet these demands. The workshop revealed several key requirements, in addition to achieving its goal of characterizing NP computing. The key requirements include: 1. Larger allocations of computational resources at NERSC; 2. Visualization and analytics support; and 3. Support at NERSC for the unique needs of experimental nuclear physicists. This report expands upon these key points and adds others. The results are based upon representative samples, called case studies, of the needs of science teams within NP. The case studies were prepared by NP workshop participants and contain a summary of science goals, methods of solution, current and future computing requirements, and special software and support needs. Participants were also asked to describe their strategy for computing in the highly parallel, multi-core environment that is expected to dominate HPC architectures over the next few years. The report also includes a section with NERSC responses to the workshop findings. NERSC has many initiatives already underway that address key workshop findings and all of the action items are aligned with NERSC strategic plans.

Gerber, Richard A.; Wasserman, Harvey J.

2012-03-02T23:59:59.000Z

37

NP Science Network Requirements  

E-Print Network (OSTI)

a small in-house nuclear physics research program by the NPnuclear physics program composed of a world-class scientific researchNuclear Physics program provides most of the Federal support for nuclear physics research

Dart, Eli

2013-01-01T23:59:59.000Z

38

High Energy Physics and Nuclear Physics Network Requirements  

SciTech Connect

The Energy Sciences Network (ESnet) is the primary provider of network connectivity for the U.S. Department of Energy (DOE) Office of Science (SC), the single largest supporter of basic research in the physical sciences in the United States. In support of SC programs, ESnet regularly updates and refreshes its understanding of the networking requirements needed by instruments, facilities, scientists, and science programs that it serves. This focus has helped ESnet to be a highly successful enabler of scientific discovery for over 25 years. In August 2013, ESnet and the DOE SC Offices of High Energy Physics (HEP) and Nuclear Physics (NP) organized a review to characterize the networking requirements of the programs funded by the HEP and NP program offices. Several key findings resulted from the review. Among them: 1. The Large Hadron Collider?s ATLAS (A Toroidal LHC Apparatus) and CMS (Compact Muon Solenoid) experiments are adopting remote input/output (I/O) as a core component of their data analysis infrastructure. This will significantly increase their demands on the network from both a reliability perspective and a performance perspective. 2. The Large Hadron Collider (LHC) experiments (particularly ATLAS and CMS) are working to integrate network awareness into the workflow systems that manage the large number of daily analysis jobs (1 million analysis jobs per day for ATLAS), which are an integral part of the experiments. Collaboration with networking organizations such as ESnet, and the consumption of performance data (e.g., from perfSONAR [PERformance Service Oriented Network monitoring Architecture]) are critical to the success of these efforts. 3. The international aspects of HEP and NP collaborations continue to expand. This includes the LHC experiments, the Relativistic Heavy Ion Collider (RHIC) experiments, the Belle II Collaboration, the Large Synoptic Survey Telescope (LSST), and others. The international nature of these collaborations makes them heavily reliant on transoceanic connectivity, which is subject to longer term service disruptions than terrestrial connectivity. The network engineering aspects of undersea connectivity will continue to be a significant part of the planning, deployment, and operation of the data analysis infrastructure for HEP and NP experiments for the foreseeable future. Given their critical dependency on networking services, the experiments have expressed the need for tight integration (both technically and operationally) of the domestic and the transoceanic parts of the network infrastructure that supports the experiments. 4. The datasets associated with simulations continue to increase in size, and the need to move these datasets between analysis centers is placing ever-increasing demands on networks and on data management systems at the supercomputing centers. In addition, there is a need to harmonize cybersecurity practice with the data transfer performance requirements of the science. This report expands on these points, and addresses others as well. The report contains a findings section in addition to the text of the case studies discussed during the review.

Dart, Eli; Bauerdick, Lothar; Bell, Greg; Ciuffo, Leandro; Dasu, Sridhara; Dattoria, Vince; De, Kaushik; Ernst, Michael; Finkelson, Dale; Gottleib, Steven; Gutsche, Oliver; Habib, Salman; Hoeche, Stefan; Hughes-Jones, Richard; Ibarra, Julio; Johnston, William; Kisner, Theodore; Kowalski, Andy; Lauret, Jerome; Luitz, Steffen; Mackenzie, Paul; Maguire, Chales; Metzger, Joe; Monga, Inder; Ng, Cho-Kuen; Nielsen, Jason; Price, Larry; Porter, Jeff; Purschke, Martin; Rai, Gulshan; Roser, Rob; Schram, Malachi; Tull, Craig; Watson, Chip; Zurawski, Jason

2014-03-02T23:59:59.000Z

39

The Department of PhysicsPRESENTS Nuclear Physics & Society  

E-Print Network (OSTI)

on nuclear physics and public policy for anyone who wants to better understand nuclear power nuclear weaponsThe Department of PhysicsPRESENTS Nuclear Physics & Society A free, four-day short course scientific policy homeland security Led by Dr. Patrick Regan, University of Surrey, Dr. Con Beausang

Gilfoyle, Jerry

40

Theoretical nuclear physics  

SciTech Connect

This report discusses the following topics: Exact 1-loop vacuum polarization effects in 1 + 1 dimensional QHD; exact 1-fermion loop contributions in 1 + 1 dimensional solitons; exact scalar 1-loop contributions in 1 + 3 dimensions; exact vacuum calculations in a hyper-spherical basis; relativistic nuclear matter with self- consistent correlation energy; consistent RHA-RPA for finite nuclei; transverse response functions in the {triangle}-resonance region; hadronic matter in a nontopological soliton model; scalar and vector contributions to {bar p}p {yields} {bar {Lambda} {Lambda}} reaction; 0+ and 2+ strengths in pion double-charge exchange to double giant-dipole resonances; and nucleons in a hybrid sigma model including a quantized pion field.

Rost, E.; Shephard, J.R.

1992-08-01T23:59:59.000Z

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


41

Mass and nuclear charge yields for 237Np(2nth,f) at different fission fragment kinetic energies  

Science Journals Connector (OSTI)

The recoil mass separator LOHENGRIN of the Laue-Langevin Institute Grenoble has been used to measure for the first time, the yields of light fission fragments from the fissioning system: 23993Np; this odd-Z nucleus is formed after double thermal neutron capture in a 23993Np target. The mass distributions were measured for different kinetic energies between 92 and 115.5 MeV, but the nuclear charge distributions were determined only up to 112 MeV. These distributions are compared to the distributions obtained for the even-even system 24094Pu. At high kinetic energy, the mass distribution shows a prominent peak around mass number AL = 106. These cold fragmentations are discussed in terms of a calculation based on a scission point model extrapolated to the cold fission case. As expected for an odd-Z fissioning nucleus, the nuclear charge distributions do not reveal any odd-even effect. The global neutron odd-even effect is found to be (8.1 1.5)%. A simple model has been used to show that most of the neutron odd-even effect results from prompt neutron evaporation from the fragments.

G. Martinez; G. Barreau; A. Sicre; T.P. Doan; P. Audouard; B. Leroux; W. Arafa; R. Brissot; J.P. Bocquet; H. Faust; P. Koczon; M. Mutterer; F. Gnnenwein; M. Asghar; U. Quade; K. Rudolph; D. Engelhardt; E. Piasecki

1990-01-01T23:59:59.000Z

42

Two Cheers for Nuclear Physics  

Science Journals Connector (OSTI)

... of the way in which the UK has supported big science was given by Sir Harry Melville, the retired chairman of the Council for Scientific Policy, in the Appleton Memorial ... the Appleton Memorial Lecture to the Institution of Electrical Engineers. In nuclear physics, Sir Harry said, the home effort was certainly too large if the powerful international facilities to ...

1967-11-11T23:59:59.000Z

43

[Experimental nuclear physics]. Final report  

SciTech Connect

This is the final report of the Nuclear Physics Laboratory of the University of Washington on work supported in part by US Department of Energy contract DE-AC06-81ER40048. It contains chapters on giant dipole resonances in excited nuclei, nucleus-nucleus reactions, astrophysics, polarization in nuclear reactions, fundamental symmetries and interactions, accelerator mass spectrometry (AMS), ultra-relativistic heavy ions, medium energy reactions, work by external users, instrumentation, accelerators and ion sources, and computer systems. An appendix lists Laboratory personnel, a Ph. D. degree granted in the 1990-1991 academic year, and publications. Refs., 41 figs., 7 tabs.

NONE

1991-04-01T23:59:59.000Z

44

Sorption of 237Np by UO2 under Repository Conditions  

NLE Websites -- All DOE Office Websites (Extended Search)

237 Np by UO 2 under Repository Conditions M. Jonathan Haire E. V. Zakharova T. V. Kazakovskaya Oak Ridge National Laboratory Institute of Physical Chemistry Institute of Experimental Physics Oak Ridge, Tennessee 37831-6166 Moscow, Russia, 117915 Sarov, Russia, 607190 Phone: (865) 574-7141 Phone: 7 095 335 1742 Phone: 7 42796 73369 e-mail: hairemj@ornl.gov e-mail: zakharova@ipc.rssi.ru e-mail: kaz@astra.vniief.ru Abstract - The primary radioisotope contributor to the calculated long-term radiation dose to the public at the Yucca Mountain spent nuclear fuel (SNF) repository site boundary is neptunium-237 ( 237 Np). Russian experiments have shown that Np(V) and Np(IV) are sorbed onto UO 2 . If Np were sorbed by UO 2 in spent fuel rather than being transported to the site

45

Nuclear Physics Long Range Plan | Jefferson Lab  

NLE Websites -- All DOE Office Websites (Extended Search)

Nuclear Physics Long Range Plan June 26, 2014 For a couple of years now, we have been waiting to get started on the next nuclear physics long range plan (LRP). What does that mean?...

46

Nuclear Physics User Facilities | U.S. DOE Office of Science (SC)  

NLE Websites -- All DOE Office Websites (Extended Search)

NP User Facilities NP User Facilities User Facilities ASCR User Facilities BES User Facilities BER User Facilities FES User Facilities HEP User Facilities NP User Facilities User Facilities Frequently Asked Questions User Facility Science Highlights Contact Information Office of Science U.S. Department of Energy 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-5430 NP User Facilities Print Text Size: A A A RSS Feeds FeedbackShare Page The Nuclear Physics program supports the operation of the following national scientific user facilities: Relativistic Heavy Ion Collider (RHIC): External link RHIC at Brookhaven National Laboratory External link is a world-class scientific research facility that began operation in 2000, following 10 years of development and construction. Hundreds of physicists from around

47

Physics of nuclear reactor safety  

Science Journals Connector (OSTI)

Provides a concise review of the physical aspects of safety of nuclear fission reactors. It covers the developments of roughly the last decade. The introductory chapter contains an analysis of the changes in safety philosophy that are characteristic of the last decade and that have given rise to an increased importance of physical aspects because of the emphasis on passive or natural safety. The second chapter focuses on the basics of reactor safety, identifying the main risk sources and the main principles for a safe design. The third chapter concerns a systematic treatment of the physical processes that are fundamental for the properties of fission chain reacting processes and the control of those processes. Because of the rather specialized nature of the field of reactor physics, each paragraph contains a very concise description of the theory of the phenomenon under consideration, before presenting a review of the developments. Chapter 4 contains a short review of the thermal aspects of reactor safety, restricted to those aspects that are characteristic of the nuclear reactor field, because thermal hydraulics of fission reactors is not principally different from that of other physical systems. In chapter 5 the consequences of the physics treated in the preceding chapters for the dynamics and safety of actual reactors are reviewed. The systematics of the treatment is mainly based on a division of reactors into three categories according to the type of coolant, which to a large extent determines the safety properties of the reactors. The last chapter contains a physical analysis of the Chernobyl accident that occurred in 1986. The reason for an attempt to give a review of this accident, as complete as possible within the space limits set by the editors, is twofold: the Chernobyl accident is the most severe accident in history and physical properties of the reactor played a decisive role, thereby serving as an illustration of the material of the preceding chapters.

H van Dam

1992-01-01T23:59:59.000Z

48

SciTech Connect: Nuclear Physics: The Ultracold Neutron Source  

Office of Scientific and Technical Information (OSTI)

Nuclear Physics: The Ultracold Neutron Source Citation Details In-Document Search Title: Nuclear Physics: The Ultracold Neutron Source Nuclear Physics: The Ultracold Neutron Source...

49

Nuclear physics frontier at RCNP, Osaka University  

SciTech Connect

Cyclotron accelerator facility and research activities at Research Center for Nuclear Physics (RCNP), Osaka University, are presented. A special focus is given on several topics in nuclear physics where interesting and important experiment results relevant to the nuclear structure as well as the nuclear astrophysics have been reported.

Ong, H. J. [10-1 Mihogaoka, Ibaraki, Osaka 567-0047 (Japan)

2014-03-05T23:59:59.000Z

50

PHYSICS 237 SPRING 2006 Nuclear and Elementary Particle Physics  

E-Print Network (OSTI)

. K. Robinson Data Reduction and Error Analysis for the Physical Sciences QA278 .B48 2003 J. M. BlattPHYSICS 237 SPRING 2006 Nuclear and Elementary Particle Physics BOOKS ON RESERVE IN CRERAR LIBRARY 1987 K. S. Krane Introductory Nuclear Physics QC777.K730 1988 Useful references P. R. Bevington and D

51

Nuclear Physics from Lattice QCD  

NLE Websites -- All DOE Office Websites (Extended Search)

Physics from Lattice QCD Physics from Lattice QCD Resources at NERSC Martin J. Savage, Robert Edwards and Chip Watson May 2011, Washington D.C. Science : 20 mins : Martin Savage Hardware : 15 mins : Chip Watson Code, Algorithms, Production : 35 mins : Robert Edwards (Massimo DiPierro) Topological Charge Density Thursday, May 26, 2011 Spin-pairing Shell-structure Vibrational and rotational excitations Λ QCD m u Λ QCD m d Λ QCD m s Λ QCD α e Small number of input parameters responsible for all of strongly interacting matter Quarks and Gluons Proton Nucleus The Structure and Interactions of Matter from Quantum Chromodynamics Thursday, May 26, 2011 Exa-Scale Computational Resources Nuclear Astrophysics Accelerator Physics

52

Physical Security Systems | National Nuclear Security Administration  

NLE Websites -- All DOE Office Websites (Extended Search)

Physical Security Systems | National Nuclear Security Administration Physical Security Systems | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Physical Security Systems Home > About Us > Our Programs > Nuclear Security > Physical Security Systems Physical Security Systems After the 9/11 terrorist attacks, NNSA took steps to protect its critical

53

Physical Security Systems | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Physical Security Systems | National Nuclear Security Administration Physical Security Systems | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Physical Security Systems Home > About Us > Our Programs > Nuclear Security > Physical Security Systems Physical Security Systems After the 9/11 terrorist attacks, NNSA took steps to protect its critical

54

Resource Letter FuNP-1: The Future of Nuclear Power  

Science Journals Connector (OSTI)

This Resource Letter is intended to summarize the status of nuclear power in the world today prospects of significant expansion of nuclear power over the next several decades the planning of and forecasts for the addition of new power reactors and issues surrounding the addition of these new reactors. Owing to the breadth of this subject the list of references includes journal articles web pages and reports to guide the reader on the subject. The subject of nuclear power and its related issues are dynamic so the most current information is likely to be found on reputable websites.

George Flanagan; George Kulynych; Cecil Parks

2010-01-01T23:59:59.000Z

55

Laboratory I | Nuclear Physics Division  

NLE Websites -- All DOE Office Websites (Extended Search)

CERN 73-11 CERN 73-11 Laboratory I | Nuclear Physics Division a 24 September 1973 ORGANISATION EUROPEENNE POUR LA RECHERCHE NUCLEAIRE C E R N EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH HIGH-ACCURACY MEASUREMENTS OF THE CENTRE OF GRAVITY OF AVALANCHES IN PROPORTIONAL CHAMBERS G. Charpak, A. Jeavons, F. Sauli and R. Stubbs G E N E V A 1973 © Copyright CERN, Geneve, 1973 Propriety litteraire et scientiflque reservee pour tous les pays du monde Ce document ne peut etre reproduit ou traduit en tout ou en partie sans Tautonsation 6cnte du Directeur g6n6ral du CERN, titulaire du droit d'auteur. Dans les cas appropnes, et s'll s'agit d'utiliser le document a des fins non commerciales, cette autonsation sera volontiers accorded. Le CERN ne revendique pas la propnete des

56

Anthropic considerations in nuclear physics  

E-Print Network (OSTI)

In this short review, I discuss the sensitivity of the generation of the light and the life-relevant elements like carbon and oxygen under changes of the parameters of the Standard Model pertinent to nuclear physics. Chiral effective field theory allows for a systematic and precise description of the forces between two, three, and four nucleons. In this framework, variations under the light quark masses and the electromagnetic fine structure constant can also be consistently calculated. Combining chiral nuclear effective field theory with Monte Carlo simulations allows to further calculate the properties of nuclei, in particular of the Hoyle state in carbon, that plays a crucial role in the generation of the life-relevant elements in hot, old stars. The dependence of the triple-alpha process on the fundamental constants of Nature is calculated and some implications for our anthropic view of the Universe are discussed.

Ulf-G. Meiner

2014-10-11T23:59:59.000Z

57

Nuclear Physics and Hadron Therapy  

SciTech Connect

Hadron therapy uses light charged particles beams (mainly proton and {sup 12}C ions) to irradiate tumors. These beams present a ballistic advantage with a maximum energy deposition at the end of the path. A large dose can be delivered inside a deep tumor while the surrounding healthy tissues are preserved. There is an obvious advantage in using these beams but the beam control has to be achieved and all the physical processes leading to the energy deposition have to be fully under control. This treatment protocol requires accurate control devices and a good knowledge of the physical processes occurring all along the path of the projectile in human tissues. In this report, we will present one example of a beam monitor for the proton therapy. We will also present the experimental program which has been initiated to obtain fundamental data on the nuclear fragmentation process.

Braunn, B. [Laboratoire de Physique Corpusculaire de Caen, ENSICAEN, Universite de Caen, CNRS/IN2P3 Caen (France); CEA/Saclay, DSM/IRFU/SPhN, Gif-sur-Yvette (France); Colin, J.; Courtois, C.; Cussol, D.; Fontbonne, J. M.; Labalme, M. [Laboratoire de Physique Corpusculaire de Caen, ENSICAEN, Universite de Caen, CNRS/IN2P3 Caen (France)

2011-12-13T23:59:59.000Z

58

List of Publications A. Nuclear Physics  

E-Print Network (OSTI)

List of Publications (2011-) A. Nuclear Physics B. Atomic and Condensed matter Physics C. Interdisciplinary Areas and Applications #12;A. Nuclear Physics 1. Investigation of cluster structure of 9 Be from, Tripathy S P, Lahiri C, Joshi D S, Sarkar P K, Radiat. Prot. Dosimetry 143, 4 (2011) 3. Structural change

Shyamasundar, R.K.

59

Large Scale Computing and Storage Requirements for Nuclear Physics Research  

E-Print Network (OSTI)

a strong program of research in theoretical nuclear physics,Research 12.1 Overview The Nuclear Physics programan extensive program of experimental research in nuclear

Gerber, Richard A.

2012-01-01T23:59:59.000Z

60

Alexey Anisyonkov Budker Institute of Nuclear Physics  

E-Print Network (OSTI)

Alexey Anisyonkov Budker Institute of Nuclear Physics (BINP, Novosibirsk) ATLAS Grid Information policy List of Activities and its properties (Functional Tests, re(Processing), Data distribution, ..

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


61

Nuclear Physics Technology Saves Lives | Jefferson Lab  

NLE Websites -- All DOE Office Websites (Extended Search)

Nuclear Physics Technology Saves Lives January 11, 2006 Listen to this story Ribbon With early detection, breast cancer can often be treated successfully. There are over two...

62

Nuclear Physics: User/Researcher Information  

NLE Websites -- All DOE Office Websites (Extended Search)

Orientation CEBAF @ 12GeV CEBAF Status Screen Conferences, Workshops, and Summer Schools Nuclear Physics CUGA Archive Directory of Members Member Institutions Experiment...

63

Theoretical Nuclear Physics - Research - Cyclotron Institute  

NLE Websites -- All DOE Office Websites (Extended Search)

Theoretical Nuclear Physics By addressing this elastic scattering indirect technique, we hope that more accurate measurements of elastic scattering data will provide very important...

64

Nuclear & Particle Physics Directorate  

NLE Websites -- All DOE Office Websites (Extended Search)

DOE/NP Review of BLIP DOE/NP Review of BLIP Brookhaven National Laboratory 19-20 November 2009 Draft Agenda Thursday, Nov. 19, 2009, Berkner Hall Room B 8:00 - 8:40 am Executive Session 8:40 - 9:00 am Welcome and How BLIP Fits In, S. Vigdor (15+5) Interface with RHIC operations and plans Synergies and leveraging from other research at BNL Isotope production in the BNL organization 9:00 - 10:00 am Overview of BLIP Operations and Accomplishments, L. Mausner (45+15) BLIP operational modes and costs Recent research and technical accomplishments and impact Performance metrics and recent performance Present and proposed staffing levels and budgets Resource distribution & balance between R&D and commercial production Coordination with other national isotope production facilities

65

Nuclear & Particle Physics, Astrophysics, Cosmology  

NLE Websites -- All DOE Office Websites (Extended Search)

production, nuclear weapons, and nuclear threat reduction Proton radiography, muon tomography, proton active interrogation, wide-angle, fast-response optical telescopes, and...

66

2015 Herman Feshbach Prize in Theoretical Nuclear Physics Recipient...  

Office of Science (SC) Website

Links Databases Reports Nuclear Physics Related Brochures and Videos Contact Information Nuclear Physics U.S. Department of Energy SC-26Germantown Building 1000 Independence...

67

Overview of Nuclear Physics at Jefferson Lab  

SciTech Connect

The Continuous Electron Beam Accelerator Facility (CEBAF) and associated experimental equipment at Jefferson Lab comprise a unique facility for experimental nuclear physics. This facility is presently being upgraded, which will enable a new experimental program with substantial discovery potential to address important topics in nuclear, hadronic, and electroweak physics. Further in the future, it is envisioned that the Laboratory will evolve into an electron-ion colliding beam facility.

McKeown, Robert D. [JLAB

2013-08-01T23:59:59.000Z

68

ANNUAL WINTER SCHOOLANNUAL WINTER SCHOOL Petersburg Nuclear Physics Institute  

E-Print Network (OSTI)

ANNUAL WINTER SCHOOLANNUAL WINTER SCHOOL Petersburg Nuclear Physics Institute National Research February ­ 1 March, 2014 Petersburg Nuclear Physics Institute (PNPI) conducts the XLVIII Annual Winter Physics · Theoretical Physics School · School on Nuclear Reactor Physics · Accelerator Physics School

Titov, Anatoly

69

CHEMISTRY DEPARTMENT ORGANIZATION Nuclear & Particle Physics  

NLE Websites -- All DOE Office Websites (Extended Search)

CHEMISTRY DEPARTMENT ORGANIZATION CHEMISTRY DEPARTMENT ORGANIZATION Nuclear & Particle Physics Associate Laboratory Director Berndt Mueller Basic Energy Sciences (BES) Associate Laboratory Director James Misewich Financial Support Angela Wefer Department Chair Alexander L. Harris Gregory Hall, Deputy Chair Jean Petterson, Sr. Administrative Assistant Quality Assurance Rep. Charles Gortakowski *Assoc. Laser Safety Officer (Jack Preses) Berndt Mueller Training Coordinator/ Records Management (Linda Sallustio) Dept. Systems Support & Cyber Security POC Mahendra Kahanda Berndt Mueller Basic Energy Sciences (BES) Nuclear & Particle Physics Neutrino & Nuclear Chemistry Minfang Yeh Gas-Phase Molecular Dynamics Gregory Hall Electron and Photo-

70

Research in Theoretical Nuclear Physics  

SciTech Connect

A theoretical study of problems relevant to the hadron physics program at Jefferson Laboratory and at other laboratories around the world.

Capstick, Simon; Robson, Don

2005-03-18T23:59:59.000Z

71

NP Open Funding Opportunities  

Office of Science (SC) Website

- and is the principal federal funding agency of - the Nation's research programs in high-energy physics, nuclear physics, and fusion energy sciences. en CD8F561D-CA7E-4C24-B0AD-2...

72

Nuclear and Radiological Engineering and Medical Physics Programs  

E-Print Network (OSTI)

Nuclear and Radiological Engineering and Medical Physics Programs The George W. Woodruff School #12 Year Enrollment - Fall Semester Undergraduate Graduate #12; Nuclear Power Industry Radiological Engineering Industry Graduate School DOE National Labs Nuclear Navy #12; 104 Operating Nuclear Power plants

Weber, Rodney

73

American particle and nuclear physics planning  

SciTech Connect

In the United States the planning process relevant to future deep inelastic scattering involves both the high energy physics and nuclear physics funding and the two communities. In Canada there is no such split between the communities. Within the past two years there have been several planning initiatives and there may be more to come. We review the current status of both the planning and the plans.

Montgomery, Hugh E. [JLAB

2014-10-01T23:59:59.000Z

74

The nuclear physics of neutron stars  

SciTech Connect

We explore the unique and fascinating structure of neutron stars. Although neutron stars are of interest in many areas of Physics, our aim is to provide an intellectual bridge between Nuclear Physics and Astrophysics. We argue against the naive perception of a neutron star as a uniform assembly of neutrons packed to enormous densities. Rather, by focusing on the many exotic phases that are speculated to exist in a neutron star, we show how the reality is different and far more interesting.

Piekarewicz, J. [Department of Physics, Florida State University, Tallahassee, FL 32306-4350 (United States)

2014-05-09T23:59:59.000Z

75

NP Science Network Requirements  

E-Print Network (OSTI)

a small in-house nuclear physics research program by the NPNuclear Physics 12 Thomas Jefferson National Accelerator Facility .. 15 The ALICE Experiment . 23 CMS-HI Research Program research programs conducted by U.S. institutions in the CMS are supported by the Nuclear

Dart, Eli

2013-01-01T23:59:59.000Z

76

Isotopes Np240 and Np241  

Science Journals Connector (OSTI)

The 1-hour neptunium activity which had previously been assigned to Np241 has been identified as the lower isomer of Np240. The decay energy of the 1-hour Np240 has been found to be 2.05 Mev compared with 2.18 Mev for that of the 7.3-min Np240. Gamma rays of energies 1160, 1000, 915, 595, 565, 435, 245, 160, and 85 kev have been found to be associated with the decay of Np240. The best value for the half-life of Np240 is 632 min. The isotope Np241 has been found to have a 16-min half-life with strong evidence for an isomer with a 3.4-hour half-life.

Richard M. Lessler and Maynard C. Michel

1960-04-01T23:59:59.000Z

77

AUSTRALIAN NATIONAL UNIVERSITY DEPARTMENT OF NUCLEAR PHYSICS  

E-Print Network (OSTI)

AUSTRALIAN NATIONAL UNIVERSITY DEPARTMENT OF NUCLEAR PHYSICS 14UD TAI'1K OPENING REPORT No. 39 5th. Measurements made with a test corona assembly suggest a production rate of reactive fluorine in the accelerator that the circulating gas passes first through the Vivalyme, then through the alumina (35/8). At 2.30 p.m. recirculation

Chen, Ying

78

AUSTRALIAN NATIONAL UNIVERSITY DEPARTMENT OF NUCLEAR PHYSICS  

E-Print Network (OSTI)

. No oil was expected this time because there had been no accidental trapping of tank gas in the oilerAUSTRALIAN NATIONAL UNIVERSITY DEPARTMENT OF NUCLEAR PHYSICS l4Uti TANK OPENING REPORT NO.24 9th January, 1981 (1 day open) REFERENCES: Earlier Tank Opening Reports are referenced by the notation 12

Chen, Ying

79

AUSTRALIAN NATIONAL UNIVERSITY DEPARTMENT OF NUCLEAR PHYSICS  

E-Print Network (OSTI)

must be made during the long tank opening scheduled for February 6. 2/ .. #12;#12;2 - A patch of oil~ While it was possible that the oil had come from the gas handling system it was assumed to be due to ourAUSTRALIAN NATIONAL UNIVERSITY DEPARTMENT OF NUCLEAR PHYSICS l4UD TANK OPENING REPORT NO. 10 Two

Chen, Ying

80

Nuclear physics aspects of double beta decay  

E-Print Network (OSTI)

Comprehensive description of the phenomenology of the $\\beta\\beta$ decay is given, with emphasis on the nuclear physics aspects. After a brief review of the neutrino oscillation results and of motivation to test the lepton number conservation, the mechanism of the $0\

Petr Vogel

2008-07-15T23:59:59.000Z

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


81

Future investigations in electromagnetic nuclear physics  

SciTech Connect

Some basic problems in nuclear physics that may receive positive response from electro- and photonuclear research are discussed. Future directions for this research are outlined, and some specific experimental proposals compiled by a study group under the sponsorship of the Bates (MIT) Users Group are described. 1 table.

Hadjimichael, E.

1980-01-01T23:59:59.000Z

82

AUSTRALIAN NATIONAL UNIVERSITY DEPARTMENT OF NUCLEAR PHYSICS  

E-Print Network (OSTI)

AUSTRALIAN NATIONAL UNIVERSITY DEPARTMENT OF NUCLEAR PHYSICS 14 UD TANK OPENING REPORT # 91 26th transmission or, at least try to understand it better, the top 11-gap section of the accelerator tube had been let up to N2, during the latter stages of the pumpout, vacuum interlocks prevented

Chen, Ying

83

AUSTRALIAN NATIONAL UNIVERSITY DEPARTMENT OF NUCLEAR PHYSICS  

E-Print Network (OSTI)

AUSTRALIAN NATIONAL UNIVERSITY DEPARTMENT OF NUCLEAR PHYSICS 14 UD TANK OPENING REPORT # 89 27th vacuum leak. The column was wiped down with RBS and water and then the HV gap test was done. It was noted in readiness for gas up next day. ACCELERATOR TUBE The high energy tube pressure had been rising for some time

Chen, Ying

84

AUSTRALIAN NATIONAL UNIVERSITY DEPARTMENT OF NUCLEAR PHYSICS  

E-Print Network (OSTI)

AUSTRALIAN NATIONAL UNIVERSITY DEPARTMENT OF NUCLEAR PHYSICS 14UDTANKOPENINGREPORTN072 27 April - 9 above 15.37 MV. Tank Close Reports Because of the long interval during which the accelerator was closed and then flushed with alcohol. Heating to 1300�C in vacuum finished the cleaning cycle and also removed any lost

Chen, Ying

85

AUSTRALIAN NATIONAL UNIVERSITY DEPARTMENT OF NUCLEAR PHYSICS  

E-Print Network (OSTI)

AUSTRALIAN NATIONAL UNIVERSITY DEPARTMENT OF NUCLEAR PHYSICS 14UD TANK OPENING REPORT No. 29 Two and for a significant fraction of the time at 14 ~W. There was a major vacuum failure when the beam burnt a hole in a bellows immediately after the analyzing magnet. The accelerator tube, which was saved from going

Chen, Ying

86

AUSTRALIAN NATIONAL UNIVERSITY DEPARTMENT OF NUCLEAR PHYSICS  

E-Print Network (OSTI)

AUSTRALIAN NATIONAL UNIVERSITY DEPARTMENT OF NUCLEAR PHYSICS l4UD TANK OPENING REPORT NO. 22 during \\vhichthe accelerator tube was open for 28 days. Performance immediately after the tank was closed vacuum was 1 x 10- 5 torr. The machine was turned off. Some time later the H.E. tube pressure was seen

Chen, Ying

87

AUSTRALIAN NATIONAL UNIVERSITY DEPARTMENT OF NUCLEAR PHYSICS  

E-Print Network (OSTI)

AUSTRALIAN NATIONAL UNIVERSITY DEPARTMENT OF NUCLEAR PHYSICS . 14UD TANK OPENING REPORT No.38 7th was the makeshift one put in No.1 position (37/7) to enable us to continue running the accelerator while we satisfactorily until this opening. A minor fault was seen in the midsection vacuum system. The current

Chen, Ying

88

RELATIVISTIC HEAVY-ION PHYSICS WITHOUT NUCLEAR CONTACT  

E-Print Network (OSTI)

RELATIVISTIC HEAVY-ION PHYSICS WITHOUT NUCLEAR CONTACT The large electromagnetic field generated physics research--for example, for investigating nuclear structure, hadronic structure, atomic physics Berkeley Laboratory--it became clear that heavy-ion physics without nuclear contact could be very useful

Bertulani, Carlos A. - Department of Physics and Astronomy, Texas A&M University

89

Input to review of STFC UK Nuclear Physics Community  

E-Print Network (OSTI)

Input to review of STFC UK Nuclear Physics Community Introduction STFC covers essentially and project funding for Astronomy, Nuclear Physics, Particle Physics and Space Science Since STFC was formed programme. Grant funding Nuclear Physics grant funding was in EPSRC until 2007 and then moved to STFC

Crowther, Paul

90

Large Scale Computing and Storage Requirements for Nuclear Physics Research  

E-Print Network (OSTI)

Low-Energy Nuclear Physics National Joseph Carlson / HPC Initiative: Building a Universal Joseph Carlson Jonathan Engel Nuclear Energy Density Functional Structure and Reactions

Gerber, Richard A.

2012-01-01T23:59:59.000Z

91

High-energy nuclear physics and nuclear astrophysics at the Radium Institute  

Science Journals Connector (OSTI)

Research into high-energy nuclear physics and nuclear astrophysics at the Radium Institute is briefly ... well as the history of research on high-energy physics. The basic work on nuclear astrophysics, cosmochron...

O. V. Lozhkin

1999-06-01T23:59:59.000Z

92

Physics -Particle and Nuclear Physics | Theory of Nuclear Fission Springer is part of Springer Science+Business Media  

E-Print Network (OSTI)

Physics - Particle and Nuclear Physics | Theory of Nuclear Fission © Springer is part of Springer Science+Business Media Theory of Nuclear Fission A Textbook Series: Lecture Notes in Physics, Vol. 838 v arious aspects of the nuclear f ission phenomenon discov ered by Hahn, Strassmann and Meitner

Pomorski, Krzysztof

93

Dark matter studies entrain nuclear physics  

Science Journals Connector (OSTI)

Abstract We review theoretically well-motivated dark-matter candidates, and pathways to their discovery, in the light of recent results from collider physics, astrophysics, and cosmology. Taken in aggregate, these encourage broader thinking in regards to possible dark-matter candidates dark-matter need not be made of WIMPs, i.e., elementary particles with weak-scale masses and interactions. Facilities dedicated to nuclear physics are well-poised to investigate certain non-WIMP models. In parallel to this, developments in observational cosmology permit probes of the relativistic energy density at early epochs and thus provide new ways to constrain dark-matter models, provided nuclear physics inputs are sufficiently well-known. The emerging confluence of accelerator, astrophysical, and cosmological constraints permit searches for dark-matter candidates in a greater range of masses and interaction strengths than heretofore possible.

Susan Gardner; George M. Fuller

2013-01-01T23:59:59.000Z

94

Nuclear energy | Princeton Plasma Physics Lab  

NLE Websites -- All DOE Office Websites (Extended Search)

Nuclear energy Nuclear energy Subscribe to RSS - Nuclear energy Energy that originates from the splitting of uranium atoms in a process called fission. This is distinct from a process called fusion where energy is released when atomic nuclei combine or fuse. Two PPPL-led teams win increased supercomputing time to study conditions inside fusion plasmas Researchers led by scientists at the U.S. Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL) have won highly competitive allocations of time on two of the world's fastest supercomputers. The increased awards are designed to advance the development of nuclear fusion as a clean and abundant source of energy for generating electricity. Read more about Two PPPL-led teams win increased supercomputing time

95

New nuclear physics for big bang nucleosynthesis  

SciTech Connect

We discuss nuclear reactions which could play a role in big bang nucleosynthesis. Most of these reactions involve lithium and beryllium isotopes and the rates for some of these have not previously been included in BBN calculations. Few of these reactions are well studied in the laboratory. We also discuss novel effects in these reactions, including thermal population of nuclear target states, resonant enhancement, and nonthermal neutron reaction products. We perform sensitivity studies which show that even given considerable nuclear physics uncertainties, most of these nuclear reactions have minimal leverage on the standard BBN abundance yields of {sup 6}Li and {sup 7}Li. Although a few have the potential to alter the yields significantly, we argue that this is unlikely.

Boyd, Richard N. [Lawrence Livermore National Laboratory, Livermore, California 94551 (United States); Brune, Carl R. [Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701 (United States); Fuller, George M. [Department of Physics, University of California, San Diego, La Jolla, California 92093-0319 (United States); Smith, Christel J. [Physics Department, Arizona State University, Tempe, Arizona 85287-1404 (United States)

2010-11-15T23:59:59.000Z

96

New Nuclear Physics for Big Bang Nucleosynthesis  

E-Print Network (OSTI)

We discuss nuclear reactions which could play a role in Big Bang Nucleosynthesis (BBN). Most of these reactions involve lithium and beryllium isotopes and the rates for some of these have not previously been included in BBN calculations. Few of these reactions are well studied in the laboratory. We also discuss novel effects in these reactions, including thermal population of nuclear target states, resonant enhancement, and non-thermal neutron reaction products. We perform sensitivity studies which show that even given considerable nuclear physics uncertainties, most of these nuclear reactions have minimal leverage on the standard BBN abundance yields of 6Li and 7Li. Although a few have the potential to alter the yields significantly, we argue that this is unlikely.

Richard N. Boyd; Carl R. Brune; George M. Fuller; Christel J. Smith

2010-08-04T23:59:59.000Z

97

Medium energy nuclear physics research  

SciTech Connect

This paper covers the following topics: Experiment 87-02: Threshold Electrodisintegration of the Deuteron at High Q{sup 2}; Measurement of the 5th Structure Function in Deuterium and {sup 12}C; Single-Particle Densities of sd-Shell Nuclei; Experiment 84-28: Transverse Form Factors of {sup 117}Sn; Experiment 82-11: Elastic Magnetic Electron Scattering from {sup 13}C; Experiment 89-09: Measurement of the Elastic Magnetic Form Factor of {sup 3}He at High Momentum Transfer; Experiment 89-15: Coincidence Measurement of the D(e,e{prime}p) Cross-Section at Low Excitation Energy and High Momentum Transfer; Experiment 87-09: Measurement of the Quadrupole Contribution to the N {yields} {Delta} Excitation; Experiment E-140: Measurement of the x-, Q{sup 2} and A-Dependence of R = {sigma}{sub L}/{sigma}{sub T}; PEP Beam-Gas Event Analysis: Physics with the SLAC TPC/2{gamma} Detector; Drift Chamber Tests at Brookhaven National Laboratory; Experiment PR-89-031: Multi-nucleon Knockout Using the CLAS Detector; Electronics Design for the CLAS Region 1 Drift Chamber; Color Transparencies in the Electroproduction of Nucleon Resonances; and Experiment PR-89-015: Study of Coincidence Reactions in the Dip and Delta-Resonance Regions.

Peterson, G.A.; Dubach, J.F.; Hicks, R.S.; Miskimen, R.A.

1992-06-01T23:59:59.000Z

98

KRNFYSIK, FRDJUPNINGSKURS FKF 021 Nuclear Physics, Advanced Course I  

E-Print Network (OSTI)

K?RNFYSIK, F?RDJUPNINGSKURS FKF 021 Nuclear Physics, Advanced Course I Antal poäng: 5.0. Valfri för. Partikelfysik. Laborationerna är obligatoriska. Litteratur Krane, K.S.: Introductory Nuclear Physics

99

KRNFYSIK, FRDJUPNINGSKURS FKF021 Nuclear Physics, Advanced Course I  

E-Print Network (OSTI)

K?RNFYSIK, F?RDJUPNINGSKURS FKF021 Nuclear Physics, Advanced Course I Poäng: 5.0 Betygskala: TH. Partikelfysik. Laborationerna är obligatoriska. Litteratur: Krane, K.S.: Introductory Nuclear Physics

100

22.02 Introduction to Applied Nuclear Physics, Spring 2003  

E-Print Network (OSTI)

This course concentrates on the basic concepts of nuclear physics with emphasis on nuclear structure and radiation interactions with matter. Included: elementary quantum theory; nuclear forces; shell structure of the ...

Molvig, Kim

Note: This page contains sample records for the topic "nuclear physics np" from the National Library of EnergyBeta (NLEBeta).
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101

Nuclear Wallet Cards at BNL | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Wallet Cards at BNL Wallet Cards at BNL Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Spinoff Applications Spinoff Archives SBIR/STTR Applications of Nuclear Science and Technology Funding Opportunities Nuclear Science Advisory Committee (NSAC) News & Resources Contact Information Nuclear Physics U.S. Department of Energy SC-26/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3613 F: (301) 903-3833 E: sc.np@science.doe.gov More Information » Spinoff Archives Nuclear Wallet Cards at BNL Print Text Size: A A A RSS Feeds FeedbackShare Page Application/instrumentation: Nuclear Wallet Cards Developed at: National Nuclear Data Center, BNL Developed in: 2000-current Result of NP research: DOE-NP nuclear data program Application currently being supported by:

102

RUSSIAN ACADEMY OF SCIENCES BUDKER INSTITUTE OF NUCLEAR PHYSICS  

E-Print Network (OSTI)

RUSSIAN ACADEMY OF SCIENCES BUDKER INSTITUTE OF NUCLEAR PHYSICS SIBERIAN BRANCH D.S. Gurov, P.V. Martyshkin, V.V. Petrov, V.V. Zuev Budker Institute of Nuclear Physics 630090, Novosibirsk, Russia M are included. @ Budker Institute of Nuclear Physics SB RAS #12

103

RUSSIAN ACADEMY OF SCIENCES BUDKER INSTITUTE OF NUCLEAR PHYSICS  

E-Print Network (OSTI)

RUSSIAN ACADEMY OF SCIENCES BUDKER INSTITUTE OF NUCLEAR PHYSICS SIBERIAN BRANCH V.S. Fadin, R of Nuclear Physics, 630090 Novosibirsk, Russia, and Novosibirsk State University, 630090 Novosibirsk, Russia, Gruppo collegato di Cosenza, Arcavacata di Rende, I-87036 Cosenza, Italy c Petersburg Nuclear Physics

104

RUSSIAN ACADEMY OF SCIENCES BUDKER INSTITUTE OF NUCLEAR PHYSICS  

E-Print Network (OSTI)

RUSSIAN ACADEMY OF SCIENCES BUDKER INSTITUTE OF NUCLEAR PHYSICS SIBERIAN BRANCH V.S. Fadin, R of colours V.S. Fadina , R. Fioreb a Budker Institute of Nuclear Physics, and Novosibirsk State University of Nuclear Physics, SB RAS #12;. 1 Introduction In the BFKL approach [1], impact factors appear

105

Postdoctoral Position in Theoretical Nuclear and Elementary Particle Physics  

E-Print Network (OSTI)

Postdoctoral Position in Theoretical Nuclear and Elementary Particle Physics Indiana University The Nuclear Theory group at the Physics Department of Indiana University invites ap- plications for a postdoctoral position in the fields of Nuclear Theory and Elementary Particle Physics, broadly defined

Washington at Seattle, University of - Department of Physics, Electroweak Interaction Research Group

106

INT Summer School Proposal Lattice QCD for Nuclear Physics  

E-Print Network (OSTI)

INT Summer School Proposal Lattice QCD for Nuclear Physics Organizers Huey-Wen Lin Department of Nuclear Physics, Johann-Joachim-Becher-Weg 45 55099 Mainz, Germany meyerh@kph.uni-mainz.de David Richards techniques to the study of nuclear physics. The goal of this summer school is to educate and prepare the next

Washington at Seattle, University of - Department of Physics, Electroweak Interaction Research Group

107

Integration of Ab Initio Nuclear Physics Calculations with Optimization Techniques  

E-Print Network (OSTI)

Integration of Ab Initio Nuclear Physics Calculations with Optimization Techniques Masha Sosonkina1 into the field of nuclear physics calculations where the objective functions are very complex and computationally the ab initio nuclear physics code MFDn and the VTDIRECT95 code for derivative-free op- timization. We

Sosonkina, Masha

108

Quantum Monte Carlo methods for nuclear physics  

E-Print Network (OSTI)

Quantum Monte Carlo methods have proved very valuable to study the structure and reactions of light nuclei and nucleonic matter starting from realistic nuclear interactions and currents. These ab-initio calculations reproduce many low-lying states and transition moments in light nuclei, and simultaneously predict many properties of light nuclei and neutron matter over a rather wide range of energy and momenta. We review the nuclear interactions and currents, and describe the continuum Quantum Monte Carlo methods used in nuclear physics. These methods are similar to those used in condensed matter and electronic structure but naturally include spin-isospin, tensor, spin-orbit, and three-body interactions. We present a variety of results including the low-lying spectra of light nuclei, nuclear form factors, and transition matrix elements. We also describe low-energy scattering techniques, studies of the electroweak response of nuclei relevant in electron and neutrino scattering, and the properties of dense nucleonic matter as found in neutron stars. A coherent picture of nuclear structure and dynamics emerges based upon rather simple but realistic interactions and currents.

J. Carlson; S. Gandolfi; F. Pederiva; Steven C. Pieper; R. Schiavilla; K. E. Schmidt; R. B. Wiringa

2014-12-09T23:59:59.000Z

109

Nuclear Thermal Rockets: The Physics of the Fission Reactor  

E-Print Network (OSTI)

Nuclear Thermal Rockets: The Physics of the Fission Reactor Shane D. Ross Control and Dynamical combustion are those powered by nuclear fission. Comparison of Chemical and Nuclear Rockets. Most existent.g., hydrogen and oxygen). In a nuclear rocket, or more precisely, a nuclear thermal rocket, the propellant

Ross, Shane

110

MICHAEL L. CORRADINI Wisconsin Distinguished Professor Nuclear Engineering and Engineering Physics, Chair, Engineering Physics Department  

E-Print Network (OSTI)

MICHAEL L. CORRADINI Wisconsin Distinguished Professor Nuclear Engineering and Engineering Physics.S. Mechanical Engineering - 1975 Marquette University, Milwaukee WI M.S. Nuclear Engineering - 1976 Massachusetts Institute of Technology PhD Nuclear Engineering - 1978 Massachusetts Institute of Technology

Volpe, Francesco

111

Nuclear Physics A 770 (2006) 131 Relativistic nuclear energy density functional  

E-Print Network (OSTI)

Nuclear Physics A 770 (2006) 1­31 Relativistic nuclear energy density functional constrained by low-energy 10 February 2006 Available online 3 March 2006 Abstract A relativistic nuclear energy density nuclear physics: the relationship between low-energy, non- perturbative QCD and the rich structure

Weise, Wolfram

112

Office of Nuclear Physics Jehanne Simon-Gillo  

E-Print Network (OSTI)

Office of Nuclear Physics Jehanne Simon-Gillo Acquisition Executive (Acting) Office of Nuclear Physics Jehanne Simon-Gillo Program Manager BNL Site Office Nand Narain Federal Project Director NASA A. McNerney Physics Support D. Raparia E. Beebe A. Kponou M. Okamura A. Pikin #12;

113

Job advertisement Faculty 08 (Physics, Mathematics and Computer Science), Institute of Nuclear Physics, has an  

E-Print Network (OSTI)

Job advertisement Faculty 08 (Physics, Mathematics and Computer Science), Institute of Nuclear and astroparticle physics, nuclear chemistry and precision physics with ultracold neutrons and ion traps. We Physics, has an opening within the framework of the Cluster of Excellence PRISMA for a University

van Straten, Duco

114

Leveraging GPUs in Ab Initio Nuclear Physics Calculations | Argonne...  

NLE Websites -- All DOE Office Websites (Extended Search)

Leveraging GPUs in Ab Initio Nuclear Physics Calculations Authors: Dossay Oryspayev, Hugh Potter, Pieter Maris, Masha Sosonkina, James P. Vary, Sven Binder, Angelo Calci, Joachim...

115

Princeton Plasma Physics Lab - Nuclear safety  

NLE Websites -- All DOE Office Websites (Extended Search)

safety Actions taken to safety Actions taken to prevent nuclear and radiation accidents or to limit their consequences. en Celebrating the 20th anniversary of the tritium shot heard around the world http://www.pppl.gov/news/2013/12/celebrating-20th-anniversary-tritium-shot-heard-around-world-2

Tensions rose in the U.S. Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL) as the seconds counted down. At stake was the first crucial test of a high-powered mixture of fuel for producing fusion energy. As the control-room clock reached "zero," a flash of light on a closed-circuit television monitor marked a historic achievement:

116

Chicago Business Features Argonne Woman in Nuclear Physics | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Chicago Business Features Argonne Woman in Nuclear Physics Chicago Business Features Argonne Woman in Nuclear Physics Chicago Business Features Argonne Woman in Nuclear Physics January 9, 2012 - 4:08pm Addthis Kawtar Hafidi is an experimental nuclear physicist, working in the medium energy physics group at Argonne. Image courtesy of Argonne National Laboratory. Kawtar Hafidi is an experimental nuclear physicist, working in the medium energy physics group at Argonne. Image courtesy of Argonne National Laboratory. Chicago Business has the scoop about Kawtar Hafidi, an Argonne National Laboratory nuclear physicist who just snagged the Association for Women in Science's 2011 Innovator Award for her research in the field of the color of quarks. Hafidi is one of many women in science who's changing the equation to accomplish the Department's mission. At Argonne, she leads

117

Nuclear safety | Princeton Plasma Physics Lab  

NLE Websites -- All DOE Office Websites (Extended Search)

safety Subscribe to RSS - Nuclear safety Actions taken to prevent nuclear and radiation accidents or to limit their consequences. A farewell to arms? Scientists developing a novel...

118

Jefferson Lab Nuclear Physics Events: Seminars  

NLE Websites -- All DOE Office Websites (Extended Search)

Events Physics Colloquia Physics Seminars Theory Seminars Graduate Student Seminars Summer Detector & Computer Lecture Series Conference Listings JLab Event Calendar Physics...

119

Joint Actinide Shock Physics Experimental Research | National Nuclear  

National Nuclear Security Administration (NNSA)

Actinide Shock Physics Experimental Research | National Nuclear Actinide Shock Physics Experimental Research | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Jasper Joint Actinide Shock Physics Experimental Research Home > About Us > Our Programs > Defense Programs > Office of Research, Development, Test, and Evaluation > Office of Research and Development >

120

Nuclear physics studies with medium energy probes  

SciTech Connect

This report research in quark-quark interactions, exotic baryonic systems, and nuclear structure. (LSP)

Seth, K.K.

1991-01-01T23:59:59.000Z

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


121

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

E-Print Network (OSTI)

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

Boyer, Edmond

122

Pulsed Nuclear Magnetic Resonance: Spin Echoes MIT Department of Physics  

E-Print Network (OSTI)

Pulsed Nuclear Magnetic Resonance: Spin Echoes MIT Department of Physics (Dated: February 5, 2014) In this experiment, the phenomenon of Nuclear Magnetic Resonance (NMR) is used to determine the magnetic moments-factor in atomic spectroscopy and is given by g = (µ/µN )/I, (2) and µN is the nuclear magneton, e /2mp

Seager, Sara

123

High Energy Physics and Nuclear Physics Network Requirements  

E-Print Network (OSTI)

Dataset Size LAN Transfer Time Needed WAN Transfer Time Needed Near Term (02 years) ? Daya Bay nuclear

Dart, Eli

2014-01-01T23:59:59.000Z

124

Applications of Nuclear Science and Technology| U.S. DOE Office of Science  

Office of Science (SC) Website

Applications of Nuclear Science and Technology Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Spinoff Applications SBIR/STTR Applications of Nuclear Science and Technology Funding Opportunities Nuclear Science Advisory Committee (NSAC) News & Resources Contact Information Nuclear Physics U.S. Department of Energy SC-26/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3613 F: (301) 903-3833 E: sc.np@science.doe.gov More Information » Benefits of NP Applications of Nuclear Science and Technology Print Text Size: A A A RSS Feeds FeedbackShare Page Applications of Nuclear Science and Technology (ANS&T) Exchange Meeting: August 22-23, 2011 Hilton Washington DC/Rockville Hotel & Executive Meeting Center

125

Reactor Physics and Fuel Cycle Analysis - Nuclear Engineering Division  

NLE Websites -- All DOE Office Websites (Extended Search)

Analysis Analysis Capabilities Nuclear Systems Modeling and Design Analysis Reactor Physics and Fuel Cycle Analysis Overview Current Projects Software Nuclear Plant Dynamics and Safety Nuclear Data Program Advanced Reactor Development Nuclear Waste Form and Repository Performance Modeling Nuclear Energy Systems Design and Development Other Capabilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Reactor Physics and Fuel Cycle Analysis Bookmark and Share Reactor physics and fuel cycle analysis is a core competency of the Nuclear Engineering (NE) Division. The Division has played a major role in the design and analysis of advanced reactors, particularly liquid-metal-cooled reactors. NE researchers have concentrated on developing computer codes for

126

NUCLEAR PHYSICS THIRD SERIES, VOLUME 32, NUMBER 6 DECEMBER 1985  

E-Print Network (OSTI)

NUCLEAR PHYSICS THIRD SERIES, VOLUME 32, NUMBER 6 DECEMBER 1985 Coulomb energy systematics and the missing J =--, ' + state in 98 R. Sherr Department ofPhysics, Princeton University, Princeton, Xeiv Jersey 08544 Cr. Bertsch Department ofPhysics, University of Tennessee, Knoxville, Tennessee 37996 (Received 22

Bertsch George F.

127

Nuclear Instruments and Methods in Physics Research A ] (  

E-Print Network (OSTI)

U N C O R R EC TED PR O O F Nuclear Instruments and Methods in Physics Research, flexible dataset history and management, and optimizations for limited fabric resources (e.g. network

Quigg, Chris

128

Accelerating Innovation: How Nuclear Physics Benefits Us All  

DOE R&D Accomplishments (OSTI)

Innovation has been accelerated by nuclear physics in the areas of improving our health; making the world safer; electricity, environment, archaeology; better computers; contributions to industry; and training the next generation of innovators.

2011-00-00T23:59:59.000Z

129

* This reference number refers to the recommendation number given in the EPSRC/STFC Review of Nuclear Physics and Nuclear Engineering Report Action Plan for the EPSRC/STFC Review of Nuclear Physics and Nuclear Engineering  

E-Print Network (OSTI)

of Nuclear Physics and Nuclear Engineering Report Action Plan for the EPSRC/STFC Review of Nuclear Physics and Nuclear Engineering Preface This document will outline the recommendations in order of importance skills provision in nuclear engineering and related areas. Although these two areas have significant

130

Future directions in particle and nuclear physics at multi-GeV hadron beam facilities  

SciTech Connect

This report contains papers on the following topics in particle and nuclear physics: hadron dynamics; lepton physics; spin physics; hadron and nuclear spectroscopy; hadronic weak interactions; and Eta physics. These papers have been indexed separately elsewhere.

Geesaman, D.F. [Argonne National Lab., IL (United States)] [ed.

1993-11-01T23:59:59.000Z

131

Charged-Particle Thermonuclear Reaction Rates: III. Nuclear Physics Input  

E-Print Network (OSTI)

The nuclear physics input used to compute the Monte Carlo reaction rates and probability density functions that are tabulated in the second paper of this series (Paper II) is presented. Specifically, we publish the input files to the Monte Carlo reaction rate code RatesMC, which is based on the formalism presented in the first paper of this series (Paper I). This data base contains overwhelmingly experimental nuclear physics information. The survey of literature for this review was concluded in November 2009.

Christian Iliadis; Richard Longland; Art Champagne; Alain Coc

2010-04-23T23:59:59.000Z

132

The Future of High Energy Nuclear Physics in Europe  

E-Print Network (OSTI)

In less than two years from now, the LHC at CERN will start operating with protons and later with heavy ions in the multi TeV energy range. With its unique physics potential and a strong, state-of-the complement of detectors, the LHC will provide the European, and in fact worldwide Nuclear Physics community, with a forefront facility to study nuclear matter under extreme conditions well into the next decade.

J. Schukraft

2006-02-14T23:59:59.000Z

133

KRNFYSIK AK FKF011 Nuclear Physics, Basic Course  

E-Print Network (OSTI)

K?RNFYSIK AK FKF011 Nuclear Physics, Basic Course Poäng: 3.0 Betygskala: TH Obligatorisk för: F3 Valfri för: E4 Kursansvarig: Docent Per Kristiansson, per.kristiansson@nuclear.lu.se Förkunskapskrav

134

KRNFYSIK AK FKF 011 Nuclear Physics, Basic Course  

E-Print Network (OSTI)

K?RNFYSIK AK FKF 011 Nuclear Physics, Basic Course Antal poäng: 3.0. Obligatorisk för: F3. Valfri för: E4. Kursansvarig: Docent Per Kristiansson, per.kristiansson@nuclear.lu.se Förkunskapskrav

135

Nuclear physics at the SCRIT electron scattering facility  

Science Journals Connector (OSTI)

......each of which were in a vacuum except for the electron...consists of an electron accelerator with the SCRIT system...in coincidence with nuclear reaction products such...new research field in nuclear physics: structure...construction of the electron accelerators equipped with the SCRIT......

Toshimi Suda; Tatsuya Adachi; Tatsuya Amagai; Akitomo Enokizono; Masahiro Hara; Toshitada Hori; Shin'ichi Ichikawa; Kazuyoshi Kurita; Takaya Miyamoto; Ryo Ogawara; Tetsuya Ohnishi; Yuuto Shimakura; Tadaaki Tamae; Mamoru Togasaki; Masanori Wakasugi; Shuo Wang; Kayoko Yanagi

2012-01-01T23:59:59.000Z

136

Plasma physics: Nuclear fusion comes closer  

Science Journals Connector (OSTI)

... A NEW initiative in international cooperation among the nuclear fusion research community, which may lead to a world engineering test reactor, was announced at ... for an engineering the most widely accepted element of a common fusion plan.

R.S. Pease

1986-12-11T23:59:59.000Z

137

Nuclear physics from strong coupling QCD  

E-Print Network (OSTI)

The strong coupling limit (beta_gauge = 0) of QCD offers a number of remarkable research possibilities, of course at the price of large lattice artifacts. Here, we determine the complete phase diagram as a function of temperature T and baryon chemical potential mu_B, for one flavor of staggered fermions in the chiral limit, with emphasis on the determination of a tricritical point and on the T ~ 0 transition to nuclear matter. The latter is known to happen for mu_B substantially below the baryon mass, indicating strong nuclear interactions in QCD at infinite gauge coupling. This leads us to studying the properties of nuclear matter from first principles. We determine the nucleon-nucleon potential in the strong coupling limit, as well as masses m_A of nuclei as a function of their atomic number A. Finally, we clarify the origin of nuclear interactions at strong coupling, which turns out to be a steric effect.

Michael Fromm; Philippe de Forcrand

2009-12-14T23:59:59.000Z

138

ANU SNEAP 2011 Lab Report -14UD Nuclear Physics Department  

E-Print Network (OSTI)

the topics and invite your follow up enquiries. · Accelerator control via EPICS being commissioned · Vacuum oANU SNEAP 2011 Lab Report - 14UD Nuclear Physics Department Research School of Physics 7 new turbo systems installed 9 to be installed. o In-house manufacture of vacuum control units o

139

NUCLEAR SCIENCE AND ENGINEERING: 124, 482-491 (1996) Fission Cross-Section Measurements of the Odd-Odd  

E-Print Network (OSTI)

NUCLEAR SCIENCE AND ENGINEERING: 124, 482-491 (1996) Fission Cross-Section Measurements of the Odd-Odd Isotopes 232Pa, 238Np, and 236Np Y. Danon* Rensselaer Polytechnic Institute, Department of Nuclear Engineering and Engineering Physics Troy, New York 12180 M. S. Moore, P. E. Koehler,t P. E. Littleton, G. G

Danon, Yaron

140

Software: Reactor Physics and Fuel Cycle Analysis - Nuclear Engineering  

NLE Websites -- All DOE Office Websites (Extended Search)

Analysis > Analysis > Software Capabilities Nuclear Systems Modeling and Design Analysis Reactor Physics and Fuel Cycle Analysis Overview Current Projects Software Nuclear Plant Dynamics and Safety Nuclear Data Program Advanced Reactor Development Nuclear Waste Form and Repository Performance Modeling Nuclear Energy Systems Design and Development Other Capabilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Reactor Physics and Fuel Cycle Analysis Software Bookmark and Share An extensive powerful suite of computer codes developed and validated by the NE Division and its predecessor divisions at Argonne supports the development of fast reactors; many of these codes are also applicable to other reactor types. A brief description of these codes follows. Contact

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


141

Basic Research for an Era of Nuclear Energy at LBNL, LLNL, AND LANL | U.S.  

Office of Science (SC) Website

Basic Research for an Era of Nuclear Basic Research for an Era of Nuclear Energy at LBNL, LLNL, AND LANL Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Spinoff Applications Spinoff Archives SBIR/STTR Applications of Nuclear Science and Technology Funding Opportunities Nuclear Science Advisory Committee (NSAC) News & Resources Contact Information Nuclear Physics U.S. Department of Energy SC-26/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3613 F: (301) 903-3833 E: sc.np@science.doe.gov More Information » Spinoff Archives Basic Research for an Era of Nuclear Energy at LBNL, LLNL, AND LANL Print Text Size: A A A RSS Feeds FeedbackShare Page Application/instrumentation: Basic Research for an Era of Nuclear Energy Developed at: Lawrence Berkeley National Laboratory, Lawrence Livermore National

142

Improved Design of Nuclear Reactor Control System | U.S. DOE Office of  

Office of Science (SC) Website

Improved Design of Nuclear Reactor Improved Design of Nuclear Reactor Control System Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Spinoff Applications Spinoff Archives SBIR/STTR Applications of Nuclear Science and Technology Funding Opportunities Nuclear Science Advisory Committee (NSAC) News & Resources Contact Information Nuclear Physics U.S. Department of Energy SC-26/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3613 F: (301) 903-3833 E: sc.np@science.doe.gov More Information » Spinoff Archives Improved Design of Nuclear Reactor Control System Print Text Size: A A A RSS Feeds FeedbackShare Page Application/instrumentation: Improved Design of Nuclear Reactor Control System Developed at: Oak Ridge National Laboratory, Holifield Radioactive Ion Beam Facility (HRIBF)

143

Global Nuclear Energy Initiative at LBNL | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Global Nuclear Energy Initiative at Global Nuclear Energy Initiative at LBNL Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Spinoff Applications Spinoff Archives SBIR/STTR Applications of Nuclear Science and Technology Funding Opportunities Nuclear Science Advisory Committee (NSAC) News & Resources Contact Information Nuclear Physics U.S. Department of Energy SC-26/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3613 F: (301) 903-3833 E: sc.np@science.doe.gov More Information » Spinoff Archives Global Nuclear Energy Initiative at LBNL Print Text Size: A A A RSS Feeds FeedbackShare Page Application/instrumentation: Global nuclear energy initiative Developed at: 88-inch Cyclotron, Lawrence Berkeley National Laboratory Developed in:

144

Resource Letter FNP-1: Frontiers of nuclear physics G. F. Bertscha)  

E-Print Network (OSTI)

Resource Letter FNP-1: Frontiers of nuclear physics G. F. Bertscha) Department of Physics activities in nuclear physics and also a guide for finding useful nuclear data. The major areas included, and nuclear instrumentation. © 2004 American Association of Physics Teachers. DOI: 10.1119/1.1763174 I

Bertsch George F.

145

Dynamic adaptations in ab-initio nuclear physics calculations on multicore computer architectures  

E-Print Network (OSTI)

Dynamic adaptations in ab-initio nuclear physics calculations on multicore computer architectures application MFDn (Many Fermion Dynamics for nuclear structure) used for ab-initio nuclear physics calcu of the quantum many-body problem transcends several areas of physics and chemistry. Nuclear physics faces

Sosonkina, Masha

146

Decay of Np241  

Science Journals Connector (OSTI)

The decay of a 16-minute neptunium activity attributed to Np241 has been studied with anthracene and sodium iodide scintillation counters. The principal mode of decay appears to be a beta group decaying to the ground state of Pu241 with a beta end-point energy of 1.360.10 Mev.

R. Vandenbosch

1959-01-01T23:59:59.000Z

147

Nuclear Science--A Guide to the Nuclear Science Wall Chart 2003 Contemporary Physics Education Project (CPEP)  

E-Print Network (OSTI)

Nuclear Science--A Guide to the Nuclear Science Wall Chart ©2003 Contemporary Physics Education Project (CPEP) 7-1 Chapter 7 Nuclear Reactions Nuclear reactions and nuclear scattering are used, protons, alphas, or "heavy ions"), creates these reactions when they strike a target nucleus. Nuclear

148

Intermediate/high energy nuclear physics  

SciTech Connect

This report discusses progress on the following research: quark cluster model; solving quantum field theories in non-perturbative regime;relativistic wave equations, quarkonia and electron-positron resonances; nuclear dependence at large transverse momentum; factorization at the order of power corrections; single-spin asymmetries; and hadronic photon production. (LSP)

Vary, J.P.

1992-01-01T23:59:59.000Z

149

Research in heavy-ion nuclear physics  

SciTech Connect

This report discusses the following topics: Fusion-fission in light nuclear systems; High-resolution Q-value measurement for the {sup 24}Mg+{sup 24}Mg reaction; Heavy-ion reactions and limits to fusion; and Hybrid MWPC-Bragg curve detector development.

Sanders, S.J.; Prosser, F.W.

1992-01-01T23:59:59.000Z

150

Accelerating Innovation: How Nuclear Physics Benefits Us All  

SciTech Connect

From fighting cancer to assuring food is safe to protecting our borders, nuclear physics impacts the lives of people around the globe every day. In learning about the nucleus of the atom and the forces that govern it, scientists develop a depth of knowledge, techniques and remarkable research tools that can be used to develop a variety of often unexpected, practical applications. These applications include devices and technologies for medical diagnostics and therapy, energy production and exploration, safety and national security, and for the analysis of materials and environmental contaminants. This brochure by the Office of Nuclear Physics of the USDOE Office of Science discusses nuclear physics and ways in which its applications fuel our economic vitality, and make the world and our lives safer and healthier.

Not Available

2011-01-01T23:59:59.000Z

151

Nuclear fusion control-oriented plasma physics  

Science Journals Connector (OSTI)

The development of control techniques for the efficient and reliable operation of a fusion reactor is one of the most challenging issues nowadays and it would provide great advantages over existing energy sources: Unlimited fuel availability, no greenhouse ... Keywords: fusion control, plasma physics, tokamak modeling and simulation

Aitor J. Garrido; Izaskun Garrido; M. Goretti Sevillano-Berasategui; Mikel Alberdi; Modesto Amundarain; Oscar Barambones; Itziar Martija

2009-07-01T23:59:59.000Z

152

Decay of Np93232  

Science Journals Connector (OSTI)

The decay of Np93232 has been studied by ? spectroscopy with a Ge(Li) spectrometer. The energies and relative intensities of 24 ? peaks have been determined. A decay scheme with two new energy levels at 1098.2 and 1146.3 keV is proposed. The level at 1193.9 keV has been confirmed. Electron-capture branching intensities are given.

R. Weiss-Reuter; H. Mnzel; G. Pfennig

1972-10-01T23:59:59.000Z

153

Theoretical nuclear physics. 1998 progress report  

SciTech Connect

Summaries of progress made on the following topics are given: (1) nonresonant contributions to inelastic N{r_arrow}{Delta}(1232) parity violation; (2) neutron distribution effects in elastic nuclear parity violation; (3) Wilson RG for scalar-plus-fermion field theories at finite density; (4) Perturbation theory for spin ladders using angular momentum coupled bases; (5) mean-field theory for spin ladders using angular momentum density; (6) finite temperature renormalization group effective potentials for the linear Sigma model; (7) negative-parity baryon resonances from lattice QCD; (8) the N{r_arrow}{Delta} electromagnetic transition amplitudes from QCD sum rules; and (9) higher nucleon resonances in exclusive reactions ({gamma}, {pi}N) on nuclei.

NONE

1998-09-01T23:59:59.000Z

154

Nuclear Physics A 587 (1995) 787-801 (3He,t) reactions on unstable nuclei  

E-Print Network (OSTI)

ELSEVIER NUCLEAR PHYSICS A Nuclear Physics A 587 (1995) 787-801 (3He,t) reactions on unstable,t) reactions on unstable nuclei theoretically. Since this charge-exchange reaction takes place on the nuclear in nuclear physics since we got a new tool, "beams of unstable nuclei" [1,2]. Many experimentalists have

Fernández de Córdoba, Pedro

155

Nuclear Instruments and Methods in Physics Research A 356 (1995) l-4 INSTRUMENTS  

E-Print Network (OSTI)

ELSEVIER Nuclear Instruments and Methods in Physics Research A 356 (1995) l-4 NUCLEAR INSTRUMENTS 8 METHODS IN PHYSICS REgtR?n Thermodynamics of dynamic nuclear polarization W.Th. Wenckebach Faculty ofApplied Physics, Delfr Unicersity of Technology, P.O.B. 5046, 2600 GA De& The Netherlands Abstract Dynamic nuclear

Dutz, Hartmut

156

Physics of Nuclear Medicine Polytechnic Institute of NYU, Brooklyn, NY 11201  

E-Print Network (OSTI)

Physics of Nuclear Medicine Yao Wang Polytechnic Institute of NYU, Brooklyn, NY 11201 Based on J. L are from the textbook. #12;EL5823 Nuclear Physics Yao Wang, Polytechnic U., Brooklyn 2 Lecture Outline of decay · Radiotracers #12;EL5823 Nuclear Physics Yao Wang, Polytechnic U., Brooklyn 3 What is Nuclear

Suel, Torsten

157

DEPARTMENf OF NUCLEAR PHYSICS TANK OPENING REPORT NO 62  

E-Print Network (OSTI)

DEPARTMENf OF NUCLEAR PHYSICS TANK OPENING REPORT NO 62 This report covers three tank openings; 2 history. We were plagued throughout these tank openings by poor beam transmission and spent most of our have, were manufactured and installed. The first tank opening2 May t.o 6 May 1988. This tank opening

Chen, Ying

158

Self-consistent methods in nuclear structure physics  

SciTech Connect

The authors present a very brief description of the Hartree Fock method in nuclear structure physics, discuss the numerical methods used to solve the self-consistent equations, and analyze the precision and convergence properties of solutions. As an application, they present results pertaining to quadrupole moments and single-particle quadrupole polarizations in superdeformed nuclei with A {approximately} 60.

Dobaczewski, J. [Warsaw Univ. (Poland). Inst. of Theoretical Physics][Oak Ridge National Lab., TN (United States). Joint Inst. for Heavy Ion Research]|[Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics

1997-11-01T23:59:59.000Z

159

Nuclear Physics Laboratory annual report, University of Washington April 1992  

SciTech Connect

This report contains short discusses on topics in the following areas: astrophysics; giant resonances and photonuclear reactions; nucleus-nucleus reactions; fundamental symmetries; accelerator mass spectrometry; medium energy nuclear physics; ultra-relativistic heavy ion collisions; cluster fusion; instrumentation; van de graaff accelerators and ion sources; and computer data acquisition systems. (LSP)

Not Available

1992-01-01T23:59:59.000Z

160

EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH European Laboratory for Particle Physics  

E-Print Network (OSTI)

EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH European Laboratory for Particle Physics OPTIMIZED will be the world next generation accelerator to be operational in 2007 at CERN. The UHV requirements force and destructive tests have been performed in its design. Final vacuum tests results are shown. 1 VARIAN S

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "nuclear physics np" from the National Library of EnergyBeta (NLEBeta).
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161

AUSTRALIAN NATIONAL UNIVERSITY OEPARTf'.iENT OF NUCLEAR PHYSICS  

E-Print Network (OSTI)

AUSTRALIAN NATIONAL UNIVERSITY OEPARTf'.iENT OF NUCLEAR PHYSICS 14UO TANK OPENING REPORT NO. 25 found when we had to go into the tank. We feel that anyone closely associated with accelerators mlmbers wherever possible. We often leave the shafts running for vacuum reasons when the machine

Chen, Ying

162

EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH European Laboratory for Particle Physics  

E-Print Network (OSTI)

EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH European Laboratory for Particle Physics A MODULAR by the cryostat insulation vacuum sectorisation every 2 cells, creates additional assembly variants, up to a total Presented at the Seventh European Particle Accelerator Conference (EPAC 2000) 26-30 June 2000, Vienna

Boyer, Edmond

163

AUSTRALIAN NATIONAL UNIVERSITY DEPART~ffiNT OF NUCLEAR PHYSICS  

E-Print Network (OSTI)

AUSTRALIAN NATIONAL UNIVERSITY DEPART~ffiNT OF NUCLEAR PHYSICS 14UD Tfu~K OPENING REPORT No.4l 15th to the accelerator. The pipework to the storage ball valve was opened and about 750 ccs of brown water came out. When that we were unable to pull open the door of the storage vessel because of partial vacuum inside

Chen, Ying

164

ELSEVIER Nuclear Physics A 581 (1995) 107-118 Higher-order dynamical effects in Coulomb  

E-Print Network (OSTI)

Laboratory, Argonne, IL 60439, USA b Institute of Nuclear Theory and Department of Physics, FM-15 UniversityELSEVIER Nuclear Physics A 581 (1995) 107-118 NUCLEAR PHYSICS A Higher-order dynamical effects in Coulomb dissociation H. Esbensen a, G.E Bertsch b, C.A. Bertulani c a Physics Division, Argonne National

Bertsch George F.

165

Princeton Plasma Physics Lab - Nuclear energy  

NLE Websites -- All DOE Office Websites (Extended Search)

energy Energy that originates energy Energy that originates from the splitting of uranium atoms in a process called fission. This is distinct from a process called fusion where energy is released when atomic nuclei combine or fuse. en Two PPPL-led teams win increased supercomputing time to study conditions inside fusion plasmas http://www.pppl.gov/news/press-releases/2014/01/two-pppl-led-teams-win-increased-supercomputing-time-study-conditions

Researchers led by scientists at the U.S. Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL) have won highly competitive allocations of time on two of the world's fastest

166

Hans Bethe, Powering the Stars, and Nuclear Physics  

NLE Websites -- All DOE Office Websites (Extended Search)

Hans Bethe, Energy Production in Stars, and Nuclear Physics Awards and Tributes · Resources with Additional Information Hans Bethe Courtesy of Cornell University "Hans Bethe was one of the great physicists not only of the twentieth century, but of all time. During his long life, he uncovered the secrets powering the stars, published the standard work on nuclear physics, built atomic weapons, and called for a halt to their proliferation. Bethe's dual legacy is one of genius and conscience."1 "Bethe headed the Theoretical (T) Division at Los Alamos [National Laboratory] from 1943 to 1946. Prior to joining the Manhattan Project, Bethe taught physics at Cornell University. ... It was during his early years at Cornell, before joining the Manhattan Project, that Bethe

167

Nuclear Resonance Fluorescence at MIT | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Resonance Fluorescence at MIT Resonance Fluorescence at MIT Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Spinoff Applications Spinoff Archives SBIR/STTR Applications of Nuclear Science and Technology Funding Opportunities Nuclear Science Advisory Committee (NSAC) News & Resources Contact Information Nuclear Physics U.S. Department of Energy SC-26/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3613 F: (301) 903-3833 E: sc.np@science.doe.gov More Information » Spinoff Archives Nuclear Resonance Fluorescence at MIT Print Text Size: A A A RSS Feeds FeedbackShare Page Application/instrumentation: Material Identification and Object Imaging Using Nuclear Resonance Fluorescence Developed at: Massachusetts Institute of Technology

168

Neutron Detectors for Detection of Nuclear Materials at LANL| U.S. DOE  

Office of Science (SC) Website

Neutron Detectors for Detection of Neutron Detectors for Detection of Nuclear Materials at LANL Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Spinoff Applications Spinoff Archives SBIR/STTR Applications of Nuclear Science and Technology Funding Opportunities Nuclear Science Advisory Committee (NSAC) News & Resources Contact Information Nuclear Physics U.S. Department of Energy SC-26/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3613 F: (301) 903-3833 E: sc.np@science.doe.gov More Information » Spinoff Archives Neutron Detectors for Detection of Nuclear Materials at LANL Print Text Size: A A A RSS Feeds FeedbackShare Page Application/instrumentation: Very Large Array Neutron Detector (VLAND); Development of large volume efficient neutron detectors for use in detection of small amounts (~ 1 gm)

169

Nuclear Reaction Cross Sections Database at BNL | U.S. DOE Office of  

Office of Science (SC) Website

Reaction Cross Sections Reaction Cross Sections Database at BNL Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Spinoff Applications Spinoff Archives SBIR/STTR Applications of Nuclear Science and Technology Funding Opportunities Nuclear Science Advisory Committee (NSAC) News & Resources Contact Information Nuclear Physics U.S. Department of Energy SC-26/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3613 F: (301) 903-3833 E: sc.np@science.doe.gov More Information » Spinoff Archives Nuclear Reaction Cross Sections Database at BNL Print Text Size: A A A RSS Feeds FeedbackShare Page Application/instrumentation: Generation and maintenance of database containing evaluated (recommended) nuclear reaction cross sections for all nuclei relevant to applied

170

Physical Mechanism of Nuclear Reactions at Low Energies  

E-Print Network (OSTI)

The physical mechanism of nuclear reactions at low energies caused by spatial extension of electron is considered. Nuclear reactions of this type represent intra-electronic processes, more precisely, the processes occurring inside the area of basic localization of electron. Distinctive characteristics of these processes are defined by interaction of the own field produced by electrically charged matter of electron with free nuclei. Heavy nucleus, appearing inside the area of basic localization of electron, is inevitably deformed because of interaction of protons with the adjoining layers of electronic cloud, which may cause nuclear fission. If there occur "inside" electron two or greater number of light nuclei, an attractive force appears between the nuclei which may result in the fusion of nuclei. The intra-electronic mechanism of nuclear reactions is of a universal character. For its realization it is necessary to have merely a sufficiently intensive stream of free electrons, i.e. heavy electric current, and as long as sufficiently great number of free nuclei. This mechanism may operate only at small energies of translational motion of the centers of mass of nuclei and electron. Because of the existence of simple mechanism of nuclear reactions at low energies, nuclear reactor turns out to be an atomic delayed-action bomb which may blow up by virtue of casual reasons, as it has taken place, apparently, in Chernobyl. The use of cold nuclear reactions for production of energy will provide mankind with cheap, practically inexhaustible, and non-polluting energy sources.

V. P. Oleinik; Yu. D Arepjev

2003-06-09T23:59:59.000Z

171

Nuclear Physics A 611 ( 1996) 484-513 Mesonic and binding contributions to the EMC  

E-Print Network (OSTI)

NUCLEAR PHYSICS A Nuclear Physics A 611 ( 1996) 484-513 Mesonic and binding contributions November 1995; revised 30 July 1996 Abstract We revise the conventional nuclear effects of Fermi motion for an interacting Fermi sea and the local density approximation to translate results from nuclear matter to finite

Fernández de Córdoba, Pedro

172

Introduction A major goal in nuclear physics is to understand how  

E-Print Network (OSTI)

Introduction A major goal in nuclear physics is to understand how nuclear binding, stability article 20 Nuclear Physics News, Vol. 13, No. 1, 2003 Ab Initio Calcula the accurate calculation of nuclear matrix ele- ments needed for some tests of the standard model

Mihaila, Bogdan

173

BNL Strategic Plan for Nuclear Physics T. Kirk, Associate Laboratory Director, HENP  

E-Print Network (OSTI)

BNL Strategic Plan for Nuclear Physics T. Kirk, Associate Laboratory Director, HENP January 3, 2005 Abstract: The strategic plan for Nuclear Physics at Brookhaven National Laboratory seeks to align itself of the Laboratory to the advance of nuclear physics. To accomplish these guiding principles, we seek to identify

174

New Horizons on the Nuclear Landscape | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Science Highlights » 2012 Science Highlights » 2012 » New Horizons on the Nuclear Landscape Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Funding Opportunities Nuclear Science Advisory Committee (NSAC) News & Resources Contact Information Nuclear Physics U.S. Department of Energy SC-26/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3613 F: (301) 903-3833 E: sc.np@science.doe.gov More Information » June 2012 New Horizons on the Nuclear Landscape New calculations have quantified the boundaries and uncertainties of the 'chart of the nuclides'-the extended periodic table of all matter. Print Text Size: A A A Subscribe FeedbackShare Page Click to enlarge photo. Enlarge Photo Image courtesy of University of Tennessee/ORNL

175

Reprinted from Nuclear Physics A663&664 (2000) 169c-182c  

E-Print Network (OSTI)

.eIsevier.nl/locate/npe Transmutation of Nuclear Waste Waclaw Gudowski aRoyal Institute of Technology,Stockholm, Sweden ELSEVIER #12;Nuclear Physics A663&664 (2000) 169c-182c Transmutation of Nuclear Waste Waclaw Gudowski Royal Institute at the dawn of nuclear era in 1940 anticipated that management of radioactive materials and nuclear waste

176

NERSC/DOE NP Requirements Workshop Logistics  

NLE Websites -- All DOE Office Websites (Extended Search)

Hotel Hotel Arrangements Large Scale Computing and Storage Requirements for Nuclear Physics May 26-27, 2011 Location The workshop will be held at Hyatt Regency Bethesda One...

177

Application of AdS/CFT in Nuclear Physics  

E-Print Network (OSTI)

We review some recent progress in studying the nuclear physics especially nucleon-nucleon (NN) force within the gauge-gravity duality, in context of noncritical string theory. Our main focus is on the holographic QCD model based on the $AdS_6$ background. We explain the noncritical holography model and obtain the vector-meson spectrum and pion decay constant. Also, we study the NN interaction in this frame and calculate the nucleon-meson coupling constants. A further topic covered is a toy model for calculating the light nuclei potential. In particular, we calculate the light nuclei binding energies and also excited energies of some available excited states. We compare our results with the results of other nuclear models and also with the experimental data. Moreover, we describe some other issues which are studied using the gauge-gravity duality.

M. R. Pahlavani; R. Morad

2014-03-11T23:59:59.000Z

178

288 Int. J. Nuclear Energy Science and Technology, Vol. 7, No. 4, 2013 Multi-physics modelling of nuclear reactors  

E-Print Network (OSTI)

288 Int. J. Nuclear Energy Science and Technology, Vol. 7, No. 4, 2013 Multi-physics modelling practices in a nutshell', Int. J. Nuclear Energy Science and Technology, Vol. 7, No. 4, pp.288 Energy and Nuclear Applications', Göteborg, Sweden, 13­14 October 2011 Copyright © 2013 Inderscience

Demazière, Christophe

179

Nuclear Physics A 757 (2005) 127 Quarkgluon plasma and color glass condensate at  

E-Print Network (OSTI)

Nuclear Physics A 757 (2005) 1­27 Quark­gluon plasma and color glass condensate at RHIC:10.1016/j.nuclphysa.2005.02.130 #12;2 I. Arsene et al. / Nuclear Physics A 757 (2005) 1­27 Abstract Institut de Recherches Subatomiques et Université Louis Pasteur, Strasbourg, France c Institute of Nuclear

180

Nuclear Engineering & Radiation Health Physics Program Outcomes Ability to apply knowledge of mathematics, science, and engineering  

E-Print Network (OSTI)

Nuclear Engineering & Radiation Health Physics Program Outcomes · Ability to apply knowledge for engineering practice · Ability to apply knowledge of atomic and nuclear physics to nuclear and radiological of mathematics, science, and engineering · Ability to design and conduct experiments as well as analyze

Tullos, Desiree

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


181

Pyroelectric Crystal Accelerator In The Department Of Physics And Nuclear Engineering At West Point  

E-Print Network (OSTI)

Pyroelectric Crystal Accelerator In The Department Of Physics And Nuclear Engineering At West Point , Yaron Danonc , Brian Morettia , and Jeffrey Muskb a Department of Physics and Nuclear Engineering, United States Military Academy, West Point, NY 10996 b Nuclear Science and Engineering Research Center

Danon, Yaron

182

NP Prediction and Full Saturation  

E-Print Network (OSTI)

This study extends Safir's (1987) analysis of Noun Phrase (NP) Predication. It argues that, for NPs to function predicationally, they must satisfy not only Safir's Predicate Principle, but also the Predicate Condition (a ...

Stroik, Thomas S.

1990-01-01T23:59:59.000Z

183

LANL | Physics | Nuclear Weapons and Global Security Data Analysis  

NLE Websites -- All DOE Office Websites (Extended Search)

Nuclear Weapons and Global Security Data Analysis Nuclear Weapons and Global Security Data Analysis Physics Division applies advanced imaging techniques to many applications, from brain imaging to neutron imaging in inertial fusion to threat detection from airborne cameras. A particular strength is the quantitative analysis of penetrating radiography using techniques such as the Bayesian Inference Engine (BIE). An example from the Nuclear Event Analysis Team shows a test object (Figure 1) that is subsequently radiographed using the Dual-Axis Radiography Hydrodynamic Test (DARHT) facility. Figures 2 and 3 show the radiograph and the inferred density of the object using the BIE, which can be compared to the known object to determine accurate error estimation. Test object Figure 1. The test object consists of a 1 cm-radius cavity void surrounded by a 4.5 cm radius surrogate fissile material of tungsten, tantalum, or depleted uranium. This sphere is surrounded by a 6.5 cm-radius copper sphere. At is thickest point, the tantalum test object has an areal density of 180 g/cm2, equivalent to 9" of steel.

184

Nuclear Instruments and Methods in Physics Research A 360 (1995) 189-192 INSTRUMENTS  

E-Print Network (OSTI)

ELSEVIER Nuclear Instruments and Methods in Physics Research A 360 (1995) 189-192 NUCLEARFaculty ofPhysics and Nuclear Techniques Academy ofMining and Metallurgy, Cracow, Poland h INFN, Torino INSTRUMENTS 8 METHODS IN PHYSICS RESEARCH SectIonA A fast, high-granularity silicon multiplicity detector

Ramello, Luciano

185

Nuclear Instruments and Methods in Physics Research A 499 (2003) 437468 The BRAHMS experiment at RHIC  

E-Print Network (OSTI)

Nuclear Instruments and Methods in Physics Research A 499 (2003) 437­468 The BRAHMS experiment, USA f H. Niewodniczanski Institute of Nuclear Physics, Krak!ow, Poland g Cyclotron Institute, Texas A. Wadag , J. Westergaardb , A. Wielocha , I.S. Zgurad a M. Smoluchowski Institute of Physics, Jagiellonian

186

Progress in Particle and Nuclear Physics 73 (2013) 134 Contents lists available at ScienceDirect  

E-Print Network (OSTI)

Progress in Particle and Nuclear Physics 73 (2013) 1­34 Contents lists available at ScienceDirect Progress in Particle and Nuclear Physics journal homepage: www.elsevier.com/locate/ppnp Review Geo field between Geology and Physics: the study of the Earth's geo-neutrino flux. We describe competing

Mcdonough, William F.

187

PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON NUCLEAR PHYSICS  

E-Print Network (OSTI)

STRUCTURE OF NUCLEAR REACTION INDUCED BY LOW ENERGY DEUTERONin the nuclear reaction induced by low energy deuteron on

Saxon, D.S.

2010-01-01T23:59:59.000Z

188

Knot and Conformal Field Theory Approach in Molecular and Nuclear Physics  

Science Journals Connector (OSTI)

......Field Theory Approach in Molecular and Nuclear Physics Syurei Iwao Department of...problem of dissociation (binding) energy for the molecules (nuclei) is discussed...13) Ring P. , Schuck P., The Nuclear Many-Body Problem (1980) : Springer......

Syurei Iwao

1990-03-01T23:59:59.000Z

189

DOE Science Showcase - DOE Nuclear Physics R&D Info | OSTI, US Dept of  

Office of Scientific and Technical Information (OSTI)

DOE Nuclear Physics R&D Info DOE Nuclear Physics R&D Info While quarks and gluons are fairly well understood, how they fit together to create different types of matter is still a mystery. The DOE Nuclear Physics program's mission is to solve this mystery through theoretical and experimental research; the benefits to society range from fighting cancer to ensuring food safety to border protection. Find DOE research information on this topic from the OSTI databases and read about the Department's Nuclear Physics program. From the Databases Select a database to initiate a search. DOE Information Bridge DOE R&D Accomplishments Energy Citations Database ScienceCinema Science.gov WorldWideScience.org More information Accelerating Innovation: How nuclear physics benefits us all About DOE's Nuclear Physics Program

190

Type I X-ray Bursts: How Nuclear Physics Shapes the Explosion...  

NLE Websites -- All DOE Office Websites (Extended Search)

star, as well as probing the underlying nuclear physics processes during the thermonuclear explosion on the surface of the neutron star. In most cases, the rapid...

191

Mini-Proceedings ECT*: Speakable in quantum mechanics: atomic, nuclear and subnuclear physics tests  

E-Print Network (OSTI)

Mini-Proceedings ECT*: Speakable in quantum mechanics: atomic, nuclear and subnuclear physics tests, ECT*-Trento, 29 August - 2 September, 2011

C. Curceanu; J. Marton; E. Milotti

2011-12-06T23:59:59.000Z

192

Investigating Biological Matter with Theoretical Nuclear Physics Methods  

E-Print Network (OSTI)

The internal dynamics of strongly interacting systems and that of biomolecules such as proteins display several important analogies, despite the huge difference in their characteristic energy and length scales. For example, in all such systems, collective excitations, cooperative transitions and phase transitions emerge as the result of the interplay of strong correlations with quantum or thermal fluctuations. In view of such an observation, some theoretical methods initially developed in the context of theoretical nuclear physics have been adapted to investigate the dynamics of biomolecules. In this talk, we review some of our recent studies performed along this direction. In particular, we discuss how the path integral formulation of the molecular dynamics allows to overcome some of the long-standing problems and limitations which emerge when simulating the protein folding dynamics at the atomistic level of detail.

Pietro Faccioli

2011-08-25T23:59:59.000Z

193

The Institute for Nuclear and Particle Physics at the Department of Physics in the Faculty of Science has the following immediate openings  

E-Print Network (OSTI)

experi- mental methods of nuclear physics (e.g. the neutrinoless double beta decay or the direct search

194

Nuclear Physics A524 (1991) 768-776 North-Holland  

E-Print Network (OSTI)

Nuclear Physics A524 (1991) 768-776 North-Holland QUASI-ELASTIC (p, p') REACTIONS IN SIMPLIFIED Villeurbanne, France 4 Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA s Institut des of the nuclear response have been put forward, the surface response model of Esbensen and Bertsch

Bertsch George F.

195

Nuclear Physics A 706 (2002) 383399 www.elsevier.com/locate/npe  

E-Print Network (OSTI)

Nuclear Physics A 706 (2002) 383­399 www.elsevier.com/locate/npe Higher-order effects in the two-body breakup of 17F H. Esbensen a, , G.F. Bertsch b a Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA b Institute for Nuclear Theory, University of Washington, Seattle, WA 98195, USA

Bertsch George F.

196

ARTICLE IN PRESS Nuclear Instruments and Methods in Physics Research A 587 (2008) 4651  

E-Print Network (OSTI)

ARTICLE IN PRESS Nuclear Instruments and Methods in Physics Research A 587 (2008) 46­51 Discovery. Visnjica , R. Vondrasekq , A. Yushkovl a Department of Physics, Princeton University, Princeton, NJ 08544 INFN and Dipartimento di Fisica Nucleare e Teorica, University of Pavia, Pavia 27100, Italy k School

Mukhopadhyay, Sujoy

197

Siberian Branch of Russian Academy of Science Budker Institute of Nuclear Physics  

E-Print Network (OSTI)

Institute of Nuclear Physics, SB RAS, Novosibirsk, Russia The ion-optical channel of vacuum insulation-optical channel of 2.5 MeV 10 mA tandem accelerator are proposed. © Budker Institute of Nuclear Physics #12] the BINP staff is developing the electrostatic tandem accelerator with vacuum insulation of the protons

Taskaev, Sergey Yur'evich

198

ELSEYIER Nuclear Physics A73 1 (2004) 3 19-326 www.elsevier.comilocate/npe  

E-Print Network (OSTI)

ELSEYIER Nuclear Physics A73 1 (2004) 3 19-326 www.elsevier.comilocate/npe Evidence for the JacobiThe Niewodniczanski Institute of Nuclear Physics, Polish Academy of Siences, Radzikowskiego 152, PL-31342 Krakow The y-rays from the decay of the GDR in the compound nucleus reaction 1sO+28Si at bombarding enery

Pomorski, Krzysztof

199

Nuclear Physics A531 (1991) 253-284 North-Holland  

E-Print Network (OSTI)

Nuclear Physics A531 (1991) 253-284 North-Holland F E ATIO SINGLE-PARTICLE STRENGTH A E VA SHELL with what is expected from depletions calculated in infinite nuclear matter. Inclusion of higher order terms interacting Fermi systems. The interest in nuclear spectral functions has been revived by recent accurate (,e

Seevinck, Michiel

200

Nuclear Physics A369 (1981) 47082 North-Holland Publishing Company  

E-Print Network (OSTI)

Nuclear Physics A369 (1981) 47082 © North-Holland Publishing Company VARIATIONAL CALCULATIONS OF ASYMMETRIC NUCLEAR MATTER I. E. LAGARIS and V. R. PANDHARIPANDE Deportment oJ'Phti'sics, Unic) Abstract: We report on variational calculations of the energy E(p, ?) of asymmetric nuclear matter having p

Lagaris, Isaac

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


201

PHYSICAL REVIEW C 87, 064608 (2013) Nuclear meson transparency in a relativistic Glauber model  

E-Print Network (OSTI)

interactions (FSI) between the tagged hadron and the nuclear environment vanish. The SSC can also be produced be of the order of the nuclear radius (lf RA). Observation of the onset of CT at a certain energy scale can teach traditional nuclear-physics calculations. The measurement of the onset and magnitude of the CT effect allows

Gent, Universiteit

202

Oregon State University Department of Nuclear Engineering & Radiation Health Physics NeutronSpring 2011  

E-Print Network (OSTI)

THE Oregon State University Department of Nuclear Engineering & Radiation Health Physics Neutron's Study Abroad Program. Arnold will earn a B.S. in Nuclear Engineering with a minor in French when she graduates this spring. INSIDE Why would a nuclear engineering student add a French minor to an already

Tullos, Desiree

203

Thin-thick hydrogen target for nuclear physics  

SciTech Connect

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

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

2014-01-29T23:59:59.000Z

204

NP Stokes fields for radio astronomy  

E-Print Network (OSTI)

The spin weighted spherical harmonic (SWSH) description of angular functions typically is associated with the Newman-Penrose (NP) null tetrad formalism. Recently the SWSH description, but not the NP formalism, has been used in the study of the polarization anisotropy of the cosmic microwave background. Here we relate this application of SWSHs to a description of electromagnetic radiation and polarization in the NP formalism. In particular we introduce NP Stokes fields that are the NP equivalent of the Stokes parameters. In addition to giving a more coherent foundation for the recent cosmological SWSH application, the NP formalism aids in the computation of the Lorentz transformation properties of polarization.

Ezra T. Newman; Richard H. Price

2010-07-25T23:59:59.000Z

205

computational infrastructure for nuclear astrophysics Michael Smith, Physics Division, Oak Ridge Na:onal Lab coordinator@nucastrodata.org  

E-Print Network (OSTI)

computational infrastructure for nuclear astrophysics Michael Smith, Physics Division, Oak Ridge Na:onal Lab coordinator@nucastrodata.org #12;computational infrastructure for nuclear astrophysics system overview ·work with nuclear information, reaction rates, & simulations ·operates "in

206

Nuclear Physics A542 (1992) 310-340 North-Holland  

E-Print Network (OSTI)

Nuclear Physics A542 (1992) 310-340 North-Holland Soft dipole excitations in "Li H. Esbensen Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA G.F. Bertsch Cyclotron Laboratory, Physics Division, Argonne National Laboratory, Argonne, I L 60439, USA. 0375-9474/92/$05 .00 � 1992

Bertsch George F.

207

Polarization Transfer in N-P Scattering at 50 Mev  

E-Print Network (OSTI)

PHYSICAL REVIEW C VOLUME 31, NUMBER 5 Polarization transfer in n-p scattering at 50 MeV MAY 1985 H. L. Woolverton, ' S. Nath, J. C. Hiebert, L. C. Northcliffe, and W. F. Woodwardt Cyclotron Institute, Texas A&M University, College Station, Texas... 77843 (Received 4 February 1985) The polarization transfer parameter D, (180') for n-p scattering has been measured at 50 MeV for the first time. Polarized neutrons produced in the H(d, n ) He reaction were scattered from the hy- drogen in a...

Woolverton, H. L.; Nath, S.; Hiebert, John C.; Northcliffe, L. C.; Woodward, W. F.

1985-01-01T23:59:59.000Z

208

Nuclear Instruments and Methods in Physics Research A 544 (2005) 171178 Simulation of long-distance beam propagation in the  

E-Print Network (OSTI)

Nuclear Instruments and Methods in Physics Research A 544 (2005) 171­178 Simulation of long. Davidson, Philip C. Efthimion, Richard Majeski, Edward A. Startsev Plasma Physics Laboratory, Princeton, spallation neutron sources, high energy and nuclear physics experiments, and nuclear ARTICLE IN PRESS www

Gilson, Erik

209

MRI: Acquisition of a computing cluster for nuclear physics and astrophysics research at the University of Richmond  

E-Print Network (OSTI)

MRI: Acquisition of a computing cluster for nuclear physics and astrophysics research, 23173 USA January 25, 2007 1 #12;2 Contents 1 Introduction 1 2 Nuclear Physics 1 2.1 Out.5 Role of Senior Personnel in Nuclear Physics . . . . . . . . . . . . . . . . . . . . . . 4 3

Gilfoyle, Jerry

210

r-Java 2.0: the nuclear physics  

E-Print Network (OSTI)

[Aims:] We present r-Java 2.0, a nucleosynthesis code for open use that performs r-process calculations as well as a suite of other analysis tools. [Methods:] Equipped with a straightforward graphical user interface, r-Java 2.0 is capable of; simulating nuclear statistical equilibrium (NSE), calculating r-process abundances for a wide range of input parameters and astrophysical environments, computing the mass fragmentation from neutron-induced fission as well as the study of individual nucleosynthesis processes. [Results:] In this paper we discuss enhancements made to this version of r-Java, paramount of which is the ability to solve the full reaction network. The sophisticated fission methodology incorporated into r-Java 2.0 which includes three fission channels (beta-delayed, neutron-induced and spontaneous fission) as well as computation of the mass fragmentation is compared to the upper limit on mass fission approximation. The effects of including beta-delayed neutron emission on r-process yield is studied. The role of coulomb interactions in NSE abundances is shown to be significant, supporting previous findings. A comparative analysis was undertaken during the development of r-Java 2.0 whereby we reproduced the results found in literature from three other r-process codes. This code is capable of simulating the physical environment of; the high-entropy wind around a proto-neutron star, the ejecta from a neutron star merger or the relativistic ejecta from a quark nova. As well the users of r-Java 2.0 are given the freedom to define a custom environment. This software provides an even platform for comparison of different proposed r-process sites and is available for download from the website of the Quark-Nova Project: http://quarknova.ucalgary.ca/

M. Kostka; N. Koning; Z. Shand; R. Ouyed; P. Jaikumar

2014-02-16T23:59:59.000Z

211

PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON NUCLEAR PHYSICS  

E-Print Network (OSTI)

Cass Avenue Argonne, II linoIs 60^39 Nuclear science liasnuclear quantities of interest when their measurement involves very low radioisotope concentrations. At Argonne,

Saxon, D.S.

2010-01-01T23:59:59.000Z

212

Plasma physics: A promising advance in nuclear fusion  

Science Journals Connector (OSTI)

... Formidable challenges face the decades-long quest to achieve nuclear fusion the power source of stars in the laboratory. For a plasma to ... power source of stars in the laboratory. For a plasma to undergo self-heating nuclear fusion (ignition), it must be both hot and well confined. The facilities that hope ...

Mark Herrmann

2014-02-12T23:59:59.000Z

213

Nuclear Instruments and Methods in Physics Research B I IS(1996) 663-669 Beam Interactions  

E-Print Network (OSTI)

&*H,__ Nuclear Instruments and Methods in Physics Research B I IS(1996) 663-669 __ !$!J ELSEVIER Park. PA 16802. USA d Motet-ids Science Division. Argonne Nutionul Luhorutory. Argonne. IL 60439, USA or pressure tubes in CANDU nuclear reactors. The behaviour of zirconium intermetallic com- pounds containing

Motta, Arthur T.

214

Nuclear Physics A 757 (2005) 315328 Search for an isomeric state in 19C  

E-Print Network (OSTI)

Nuclear Physics A 757 (2005) 315­328 Search for an isomeric state in 19C R. Kanungo a,,1 , Z 113-0033, Japan g Center for Nuclear Studies, 2-1, Hirosawa, Wako-shi, Saitama 351-0198, Japan h3, Canada. 2 Present address: Argonne National Laboratory, 9700S. Cass Avenue, Argonne, IL 60439

Horváth, Ákos

215

Nuclear Physics A 781 (2007) 317341 Symmetry energies, pairing energies, and mass  

E-Print Network (OSTI)

Nuclear Physics A 781 (2007) 317­341 Symmetry energies, pairing energies, and mass equations J of the respective mass equation since symmetry energies are related to the curvature of the nuclear mass surface and pairing energies of atomic nuclei are related to the differences between the excitation energies

O'Donnell, Tom

216

Nuclear Instruments and Methods in Physics Research A 360 (1995) 17-21 INSTRUMENTS  

E-Print Network (OSTI)

spectrum in the energy range 4-50 GeV and took place from Ft. Sumner, New Mexico. 1. Introduction The mainNuclear Instruments and Methods in Physics Research A 360 (1995) 17-21 ELSEVIER NUCLEAR INSTRUMENTS and Sezione I.N.F.N. dell'Universitci "La Sapienza", Roma, Italy h New Mexico State University, Las Cruces

Morselli, Aldo

217

Nuclear Instruments and Methods in Physics Research A 356 (1995) 111-I 15 INSTRUMENTS  

E-Print Network (OSTI)

JL3*H Nuclear Instruments and Methods in Physics Research A 356 (1995) 111-I 15 NUCLEAR INSTRUMENTS accelerator ELSA. 1. Introduction 2. The frozen spin target One powerful tool to study spin dependent in the isolation vacuum of the vertical "He/"He dilution refrigerator of the Bonn frozen spin target

Dutz, Hartmut

218

INSTITUTE OF PHYSICS PUBLISHING JOURNAL OF PHYSICS G: NUCLEAR AND PARTICLE PHYSICS J. Phys. G: Nucl. Part. Phys. 32 (2006) S61S68 doi:10.1088/0954-3899/32/12/S07  

E-Print Network (OSTI)

INSTITUTE OF PHYSICS PUBLISHING JOURNAL OF PHYSICS G: NUCLEAR AND PARTICLE PHYSICS J. Phys. G: Nucl of longitudinal dynamics at RHIC J H Lee (for the BRAHMS Collaboration1 ) Physics Department, Brookhaven NationalQGP', that we have searched for. In order to characterize the nature of the created nuclear (partonic

219

Nuclear Data Measurements for 21st Century Reactor Physics Applications  

SciTech Connect

The United States Department of Energy (DOE), Office of Nuclear Energy (NE) has embarked on a long-term program to significantly advance the science and technology of nuclear energy. This is in response to the overall national plan for accelerated development of domestic energy resources on several fronts, punctuated by recent dramatic events that have emphasized the need for the US to reduce its dependence on foreign petroleum supplies. Key aspects of the DOE-NE agenda are embodied in the Generation-IV (Gen-IV) advanced nuclear energy systems development program and in the Advanced Fuel Cycle (AFC) program. The planned efforts involve near-term and intermediate-term improvements in fuel utilization and recycling in current nuclear power reactor systems as well as the longer-term development of new nuclear energy systems that offer much improved fuel utilization and proliferation resistance, along with continued advances in operational safety. The success of the overall NE effort will depend not only on sophisticated system development and engineering, but also on the advances in the supporting sciences and technologies. Of these, one of the most important is the improvement of the relevant fundamental nuclear science data bases, especially the evaluated neutron interaction cross section files that serve as the foundation of all reactor system designs, operating strategies, and fuel cycle engineering activities. The new concepts for reactors and fuel cycles involve the use of transuranic nuclides that were previously of little interest, and where experimentally measured information is lacking. The current state of the cross section database for some of these nuclides is such that design computations for advanced fast-spectrum reactor systems and fuel cycles that incorporate such materials in significant quantities are meaningful only for approximate conceptual applications. No actual system could reliably be designed according to currently accepted standards, nor could such a system be safely and efficiently operated, with the limited nuclear data and related information now available.

Rahmat Aryaeinejad; Jerald D. Cole; Mark W. Drigert; James K. Jewell; Christopher A. McGrath; David W. Nigg; Edward L. Reber

2003-03-01T23:59:59.000Z

220

Accelerating Ab Initio Nuclear Physics Calculations with GPUs  

E-Print Network (OSTI)

This paper describes some applications of GPU acceleration in ab initio nuclear structure calculations. Specifically, we discuss GPU acceleration of the software package MFDn, a parallel nuclear structure eigensolver. We modify the matrix construction stage to run partly on the GPU. On the Titan supercomputer at the Oak Ridge Leadership Computing Facility, this produces a speedup of approximately 2.2x - 2.7x for the matrix construction stage and 1.2x - 1.4x for the entire run.

Hugh Potter; Dossay Oryspayev; Pieter Maris; Masha Sosonkina; James Vary; Sven Binder; Angelo Calci; Joachim Langhammer; Robert Roth; mit atalyrek; Erik Saule

2014-12-18T23:59:59.000Z

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


221

Bogoliubov Laboratory of Theoretical Physics JOINT INSTITUTE FOR NUCLEAR RESEARCH  

E-Print Network (OSTI)

role increasing the ``cold fusion'' probability in electronic molecules whose nuclear constituents have. Therefore, widths of such resonances giving a probability of a fusion of the nu­ clear constituents for the molecules LiD and H 2 O. There exists also a well­known exam­ ple [?] of muon catalyzed fusion of deuteron

222

Nuclear Many-Body Physics Where Structure And Reactions Meet  

E-Print Network (OSTI)

The path from understanding a simple reaction problem of scattering or tunneling to contemplating the quantum nuclear many-body system, where structure and continuum of reaction-states meet, overlap and coexist, is a complex and nontrivial one. In this presentation we discuss some of the intriguing aspects of this route.

Naureen Ahsan; Alexander Volya

2009-06-24T23:59:59.000Z

223

TEI Piraeus students' knowledge on the beneficial applications of nuclear physics: Nuclear energy, radioactivity - consequences  

E-Print Network (OSTI)

The recent nuclear accident in Japan revealed the confusion and the inadequate knowledge of the citizens about the issues of nuclear energy, nuclear applications, radioactivity and their consequences In this work we present the first results of an ongoing study which aims to evaluate the knowledge and the views of Greek undergraduate students on the above issues. A web based survey was conducted and 131 students from TEI Piraeus answered a multiple choice questionnaire with questions of general interest on nuclear energy, nuclear applications, radioactivity and their consequences. The survey showed that students, like the general population, have a series of faulty views on general interest nuclear issues. Furthermore, the first results indicate that our educational system is not so effective as source of information on these issues in comparison to the media and internet

Pilakouta, Mirofora

2011-01-01T23:59:59.000Z

224

Nuclear physics information needed for accelerator driven transmutation of nuclear waste  

SciTech Connect

There is renewed interest in using accelerator driven neutron sources to address the problem of high-level long-lived nuclear waste. Several laboratories have developed systems that may have a significant impact on the future use of nuclear power, adding options for dealing with long-lived actinide wastes and fission products, and for power production. This paper describes a new Los Alamos concept using thermal neutrons and examines the nuclear data requirements. 7 refs., 3 figs., 1 tab.

Lisowski, P.W.; Bowman, C.D.; Arthur, E.D.; Young, P.G.

1991-01-01T23:59:59.000Z

225

Nuclear Instruments and Methods in Physics Research B28 (1987) 175-184 North-Holland, Amsterdam  

E-Print Network (OSTI)

Nuclear Instruments and Methods in Physics Research B28 (1987) 175-184 North-Holland, Amsterdam 175.M. GHONIEM Mechanical, Aerospace and Nuclear Engineering Department University of California, Los Angeles for treatment of large-angle nuclear collisions. Small-angle nuclear collisions and electronic stopping

Ghoniem, Nasr M.

226

JINA Workshop Nuclear Physics in Hot Dense Dynamic Plasmas  

SciTech Connect

Measuring NEET and NEEC is relevant for probing stellar cross-sections and testing atomic models in hot plasmas. Using NEEC and NEET we can excite nuclear levels in laboratory plasmas: (1) NIF: Measure effect of excited nuclear levels on (n,{gamma}) cross-sections, 60% and never been measured; (2) Omega, Test cross-sections for creating these excited levels via NEEC and NEET. Will allow us to test models that estimate resonance overlap of atomic states with the nucleus: (1) Average Atom model (AA) (CEA&LLNL), single average wave-function potential; (2) Super Transition Array (STA) model (LLNL), More realistic individual configuration potentials NEET experimental data is scarce and not in a plasma environment, NEEC has not yet been observed.

Kritcher, A L; Cerjan, C; Landen, O; Libby, S; Chen, M; Wilson, B; Knauer, J; Mcnabb, D; Caggiano, J; Bleauel, D; Weideking, M; Kozhuharov, C; Brandau, C; Stoehlker, T; Meot, V; Gosselin, G; Morel, P; Schneider, D; Bernstein, L A

2011-03-07T23:59:59.000Z

227

Covariant Spectator Theory of np scattering: Deuteron Quadrupole Moment  

The deuteron quadrupole moment is calculated using two CST model wave functions obtained from the 2007 high precision fits to $np$ scattering data. Included in the calculation are a new class of isoscalar $np$ interaction currents automatically generated by the nuclear force model used in these fits. The prediction for model WJC-1, with larger relativistic P-state components, is $2.5\\%$ smaller that the experiential result, in common with the inability of models prior to 2014 to predict this important quantity. However, model WJC-2, with very small P-state components, gives agreement to better than 1\\%, similar to the results obtained recently from $\\chi$EFT predictions to order N$^3$LO.

Gross, Franz

2015-01-01T23:59:59.000Z

228

Nuclear Instruments and Methods in Physics Research A ] (  

E-Print Network (OSTI)

in the '80s by Fiorini and Niinikoski for searching rare events like neutrinoless double beta decay (bb-0n.60.Pq; 29.40.Vj; 95.35.þd; 7.20.Mc Keywords: Cryogenic detectors; Neutrino mass; Neutrinoless double beta decay; Dark matter; WIMPs; Fundamental physics 1. Introduction Cryogenic detectors were proposed

229

Nuclear Physics Information Needed for Accelerator Driven Transmutation of Nuclear Waste  

Science Journals Connector (OSTI)

There is renewed interest in using accelerator driven neutron sources to address the problem of high level long-lived nuclear waste. Several laboratories have developed systems that may ... a significant impact o...

P. W. Lisowski; C. D. Bowman; E. D. Arthur

1992-01-01T23:59:59.000Z

230

from Savannah River Nuclear Solutions, LLC NEWS SRNS Partners with Georgialina Physical Therapy Associates to  

NLE Websites -- All DOE Office Websites (Extended Search)

Partners with Georgialina Physical Therapy Associates to Partners with Georgialina Physical Therapy Associates to Bring Services to SRS Employees AIKEN, S.C. - April 25, 2013 - The days of long drives, even longer wait times, and work challenges associated with ongoing physical therapy appointments are drawing to an end for Savannah River Site (SRS) employees thanks to a partnership between Savannah River Nuclear Solutions, LLC (SRNS) and Georgialina Physical Therapy (GPT) Associates. Together, the companies have launched a new program to provide a range of physical therapy services to all SRS employees. "Any SRS employee can schedule an appointment with us at our on-site location," said Brett Brannon, co-owner, Georgialina Physical Therapy Associates. "We provide the same services at our SRS clinic that we do in any of our

231

Charged particle assisted nuclear reactions in solid state environment: renaissance of low energy nuclear physics  

E-Print Network (OSTI)

The features of electron assisted neutron exchange processes in crystalline solids are survayed. It is stated that, contrary to expectations, the cross section of these processes may reach an observable magnitude even in the very low energy case because of the extremely huge increment caused by the Coulomb factor of the electron assisted processes and by the effect of the crystal-lattice. The features of electron assisted heavy charged particle exchange processes, electron assisted nuclear capure processes and heavy charged particle assisted nuclear processes are also overviewed. Experimental observations, which may be related to our theoretical findings, are dealt with. The anomalous screening phenomenon is related to electron assisted neutron and proton exchange processes in crystalline solids. A possible explanation of observations by Fleischmann and Pons is presented. The possibility of the phenomenon of nuclear transmutation is qualitatively explained with the aid of usual and charged particle assisted r...

Klmn, Pter

2015-01-01T23:59:59.000Z

232

Nuclear Physics A 717 (2003) 199213 www.elsevier.com/locate/npe  

E-Print Network (OSTI)

nucleus C.A. Bertulani , P. Danielewicz National Superconducting Cyclotron Laboratory, Michigan State: bertulani@nscl.msu.edu (C.A. Bertulani), danielewicz@nscl.msu.edu (P. Danielewicz). 0375-9474/03/$ ­ see;200 C.A. Bertulani, P. Danielewicz / Nuclear Physics A 717 (2003) 199­213 Under some circumstances

Bertulani, Carlos A. - Department of Physics and Astronomy, Texas A&M University

233

Nuclear Physics A 687 (2001) 405434 www.elsevier.nl/locate/npe  

E-Print Network (OSTI)

Nuclear Physics A 687 (2001) 405­434 www.elsevier.nl/locate/npe Spectral ergodicity and normal Fisicas, UNAM, Apartado, Postal 48-3, Cuernavaca, Mexico c Max-Planck-Institut für Kernphysik, Postfach reveals that spectral ergodicity is not broken, but that different energy scales of the spectra

Mejía-Monasterio, Carlos

234

s-_.__El3ELSEVIER Nuclear Physics B (Proc. Suppl.) 113 (2002) 88-94 SUPPLEMENTS  

E-Print Network (OSTI)

s-_.__El3ELSEVIER Nuclear Physics B (Proc. Suppl.) 113 (2002) 88-94 SUPPLEMENTS www.elsevier.com/locate/npe High-energy deuteron measurement with the CAPRICE98 experiment M. Ambriola", S. Bartaluccib, R, Trieste, Italy eR. L. Golden Particle Astrophysics Lab, New Mexico State University, Las Cruces, NM, USA f

Morselli, Aldo

235

Nuclear Instruments and Methods in Physics Research A 350 (1994) 17-23 North-Holland  

E-Print Network (OSTI)

-9002(94)00630-P give rise to a substantial evolution of volatile elements into the accelerator vacuum spaceNuclear Instruments and Methods in Physics Research A 350 (1994) 17-23 North-Holland Theoretical investigation of a flowing heavy metal target for an accelerator-driven neutron source V.I. Belyakov

McDonald, Kirk

236

Siberian Branch of Russian Academy of Science Budker Institute of Nuclear Physics  

E-Print Network (OSTI)

Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, Russia An electrostatic tandem-accelerator with vacuum insulation is being developed at BINP. Source of accelerating voltage is one of the component with vacuum insulation. The beam accelerated to the full voltage reaches the charge exchange gas target where

Taskaev, Sergey Yur'evich

237

Nuclear Physics: A Key Ingredient in Astrophysical Modeling F.-K. Thielemann, D. Argast, F. Brachwitz, J.L. Fisker, C. Frohlich, R. Hirschi, E.  

E-Print Network (OSTI)

1 Nuclear Physics: A Key Ingredient in Astrophysical Modeling F.-K. Thielemann, D. Argast, F of Physics & Astronomy, Univ. of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland Nuclear physics. In this review we will survey how these aspects of nuclear physics enter the modeling of astrophysical objects. 1

Rauscher, Thomas

238

Nuclear Instruments and Methods in Physics Research B 96 (1995) 545-549 Be8m Interactions  

E-Print Network (OSTI)

a__ !!I!!! __ ELSEVIER Nuclear Instruments and Methods in Physics Research B 96 (1995) 545.P. Kanter a, T. LeBrun a, L. Young a, W. Bauer b aPhysics Division, Argonne National Laboratory, Argonne, IL- state and the atomic scales. As is observed in the solid-state and in atomic (and indeed nuclear

Bauer, Wolfgang

239

Nuclear Instruments and Methods in Physics Research A 467468 (2001) 202205 Control and data acquisition systems for high field  

E-Print Network (OSTI)

Nuclear Instruments and Methods in Physics Research A 467­468 (2001) 202­205 Control and data, Budker Institute of Nuclear Physics of SBRAS, Lavrentyeva 11, 630090 Novosibirsk, Russia Abstract for installation at Bessy-II (Germany). The second one controls a 10 T wiggler which is under testing now

Kozak, Victor R.

240

US Department of Energy (DOE)/Gosatomnadzor (GAN) of Russia project at the Petersburg Nuclear Physics Institute (PNPI)  

SciTech Connect

This paper presents a summary of work accomplished within the scope of the DOE-Gosatomnadzor (GAN) Agreement to reduce vulnerability to theft of direct-use nuclear materials in Russia. The DOE-GAN agreement concerns the Russian Academy of Science B.P. Konstantinov Petersburg Nuclear Physics Institute (PNPI), located 45 kilometers from St. Petersburg. The PNPI operates facilities to research basic nuclear physics. Current world conditions require particular attention to the issue of Material Protection, Control, and Accounting (MPC&A) of nuclear materials. The long-term plan to increase security at the facility is outlined, including training, physical protection upgrades, and material control and accountability. 4 figs.

Baranov, I.A.; Konoplev, K.A. [Petersburg Nuclear Physics Institute, Gatchina (Russian Federation); Hauser, G.C. [Sandia National Lab., Albuquerque, NM (United States)] [and others

1997-08-01T23:59:59.000Z

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


241

Nuclear Instruments and Methods in Physics Research A 507 (2003) 680690 Novel technique for ultra-sensitive determination of trace  

E-Print Network (OSTI)

weighted mean distance to 22 nuclear power stations in Japan and Korea is about 200 km. This large distance nuclear power reactors as anti-neutrino sources [2]. Its long baseline gives KamLAND sensitivity to Dm2Nuclear Instruments and Methods in Physics Research A 507 (2003) 680­690 Novel technique for ultra

Piepke, Andreas G.

242

Nuclear Instruments and Methods in Physics Research A 503 (2003) 276278 Neutrino studies in nuclei and intense neutrino sources  

E-Print Network (OSTI)

Nuclear Instruments and Methods in Physics Research A 503 (2003) 276­278 Neutrino studies in nuclei interactions. Nuclear responses for neutrinos are crucial for neutrino studies in nuclei. The responses, which are mainly nuclear spin isospin responses, are studied indirectly by charge exchange hadronic reactions

Washington at Seattle, University of

243

Most Tensor Problems Are NP-Hard  

Science Journals Connector (OSTI)

We prove that multilinear (tensor) analogues of many efficiently computable problems in numerical linear algebra are NP-hard. Our list includes: determining the feasibility of a system of bilinear equations, deciding whether a 3-tensor possesses a given ... Keywords: #P-hardness, NP-hardness, Numerical multilinear algebra, VNP-hardness, bivariate matrix polynomials, hyperdeterminants, nonnegative definite tensors, polynomial time approximation schemes, symmetric tensors, system of multilinear equations, tensor eigenvalue, tensor rank, tensor singular value, tensor spectral norm, undecidability

Christopher J. Hillar; Lek-Heng Lim

2013-11-01T23:59:59.000Z

244

Charged particle assisted nuclear reactions in solid state environment: renaissance of low energy nuclear physics  

E-Print Network (OSTI)

The features of electron assisted neutron exchange processes in crystalline solids are survayed. It is stated that, contrary to expectations, the cross section of these processes may reach an observable magnitude even in the very low energy case because of the extremely huge increment caused by the Coulomb factor of the electron assisted processes and by the effect of the crystal-lattice. The features of electron assisted heavy charged particle exchange processes, electron assisted nuclear capure processes and heavy charged particle assisted nuclear processes are also overviewed. Experimental observations, which may be related to our theoretical findings, are dealt with. The anomalous screening phenomenon is related to electron assisted neutron and proton exchange processes in crystalline solids. A possible explanation of observations by Fleischmann and Pons is presented. The possibility of the phenomenon of nuclear transmutation is qualitatively explained with the aid of usual and charged particle assisted reactions. The electron assisted neutron exchange processes in pure $Ni$ and $Li-Ni$ composite systems (in the Rossi-type E-Cat) are analyzed and it is concluded that these reactions may be responsible for recent experimental observations.

Pter Klmn; Tams Keszthelyi

2015-02-05T23:59:59.000Z

245

UCLA Intermediate Energy Nuclear and Particle Physics Research: Final Report  

SciTech Connect

This project covers the following research: (a) Investigations into the structure of the proton and neutron. This is done by investigating the different resonance states of nucleons with beams of tagged, polarized photons, linearly as well as circularly, incident on polarized hydrogen/deuterium targets and measuring the production of {pi}{sup #25;0}, 2{pi}{sup #25;}0, 3{pi}{sup #25;0}, {eta}#17;, {eta}', {omega}, etc. The principal detector is the Crystal Ball multiphoton spectrometer which has an acceptance of nearly 4#25;. It has been moved to the MAMI accelerator facility of the University of Mainz, Germany. We investigate the conversion of electromagnetic energy into mesonic matter and conversely. (b) We investigate the consequences of applying the "standard" symmetries of isospin, Gâ??parity, charge conjugation, C, P, T, and chirality using rare and forbidden decays of light mesons such as the {eta}#17;,{eta}' and {omega}. We also investigate the consequences of these symmetries being slightly broken symmetries. We do this by studying selected meson decays using the Crystal Ball detector. (c) We determine the mass, or more precisely the mass difference of the three light quarks (which are inputs to Quantum Chromodynamics) by measuring the decay rate of specially selected {eta}#17; and {eta}' decay modes, again we use the Crystal Ball. (d)We have started a new program to search for the 33 missing cascade baryons using the CLAS detector at the Thomas Jefferson Laboratory. Cascade resonances are very special: they have double strangeness and are quite narrow. This implies that they can be discovered by the missing mass technique in photoproduction reactions such as in {gamma}p{yields}{Xi}{sup #4;â??}K{sup +}K{sup +}. The cascade program is of particular importance for the upgrade to 12 GeV of the CLAS detector and for design of the Hall D at JLab. (e) Finally, we are getting more involved in a new program to measure the hadronic matter form factor of complex nuclei, in particular the "neutron skin" of {sup 208}Pb, which is of great interest to astroparticle physics for determining the properties of neutron stars. Processes of study are coherent and nonâ??coherent #25;0 photoproduction. The Crystal Ball is uniquely suited for these studies because of the large acceptance, good direction and energy resolution and it is an inclusive detector for the #25;{pi}{sup 0} final state and exclusive for background such as 2#25;{pi}{sup 0}.

B.M.K. Nefkens (Principal Investigator, ed.); J. Goetz; A. Lapik; M. Korolija; S. Prakhov; A. Starostin (ed.)

2011-05-18T23:59:59.000Z

246

NIF system-design requirements for nuclear-weapons physics experiments  

SciTech Connect

One of the objectives of the National Ignition Facility (NIF) is to provide an aboveground experimental capability for conducting weapons-physics experiments, for maintaining nuclear competence. To achieve the high-energy-density regimes needed for a science-based stockpile stewardship program, NIF must produce conditions similar to those in nuclear weapon explosions. This imposes fundamental facility design requirements on NIF. This document summarizes those requirements for opacity, radiation-flow, equation-of-state, non-LTE and x-ray laser, hydrodynamic, and capsule-implosion experiments.

Perry, T.S. [ed.] [Lawrence Livermore National Lab., CA (United States); Wilde, B.H. [ed.] [Los Alamos National Lab., NM (United States)

1995-04-01T23:59:59.000Z

247

Nuclear physics research at the University of Richmond. Progress report, November 1, 1994--October 31, 1995  

SciTech Connect

Summarized in this report is the progress achieved during the period from November 1, 1994 to October 31, 1995. The experimental work described in this report is in electromagnetic and heavy-ion nuclear physics. The effort in electromagnetic nuclear physics is in preparation for the research program at the Continuous Electron Beam Accelerator Facility (CEBAF) and is focused on the construction and use of the CEBAF Large Acceptance Spectrometer (CLAS). The heavy-ion experiments were performed at the Argonne National Laboratory ATLAS facility and SUNY, Stony Brook. The physics interests driving these efforts at CEBAF are in the study of the structure, interactions, and nuclear-medium modifications of mesons and baryons. This year, an extension of the experiment to measure the magnetic form factor of the neutron was approved by the CEBAF Program Advisory Committee Nine (PAC9) for beam at 6 GeV. The authors also submitted updates to PAC9 on the experiments to measure inclusive {eta} photoproduction in nuclei and electroproduction of the {Lambda}, {Lambda}*(1520), and f{sub 0}(975). In addition to these experiments, the authors collaborated on a proposal to measure rare radiative decays of the {phi} meson which was also approved by PAC9. Their contributions to the construction of the CLAS include the development of the drift-chamber gas system, drift-chamber software, and controls software. Major has been leading the effort in the construction of the gas system. In the last year, the Hall B gas shed was constructed and the installation of the gas system components built at the University of Richmond has begun. Over the last six years, the efforts in low-energy heavy-ion physics have decreased due to the change in focus to electromagnetic nuclear physics at CEBAF. Most of the heavy-ion work is completed and there are now new experiments planned. Included in this report are two papers resulting from collaborations on heavy-ion experiments.

Vineyard, M.F.; Gilfoyle, G.P.; Major, R.W.

1995-12-31T23:59:59.000Z

248

PHYSICAL REVIEW A 90, 063412 (2014) Effect of nuclear vibration on high-order-harmonic generation of aligned H2  

E-Print Network (OSTI)

PHYSICAL REVIEW A 90, 063412 (2014) Effect of nuclear vibration on high-order-harmonic generation of aligned H2 + molecules Dmitry A. Telnov,1,* John Heslar,2, and Shih-I Chu2,3, 1 Department of Physics, St. Petersburg State University, St. Petersburg 198504, Russia 2 Department of Physics, Center for Quantum

Chu, Shih-I

249

46 March 2012 Physics Today www.physicstoday.org he kind of neutrinos emitted in nuclear beta  

E-Print Network (OSTI)

46 March 2012 Physics Today www.physicstoday.org T he kind of neutrinos emitted in nuclear beta of intriguing applications beyond fun- damental particle-physics research. Like all neutrinos, they're very begun providing valuable clues about the origin and thermal history of Earth (see PHYSICS TODAY

Mcdonough, William F.

250

PHYSICAL REVIEW B 84, 155319 (2011) Nonequilibrium nuclear polarization and induced hyperfine and dipolar magnetic fields in  

E-Print Network (OSTI)

PHYSICAL REVIEW B 84, 155319 (2011) Nonequilibrium nuclear polarization and induced hyperfine Department of Physics and Astronomy, California State University, Fullerton, California 92835, USA 2 Department of Physics and Astronomy and Optical Science and Technology Center, University of Iowa, Iowa City

Flatte, Michael E.

251

Final Report 10th Conference on the Intersections of Particle and Nuclear Physics  

SciTech Connect

The 10th Conference on the Intersections of Particle and Nuclear Physics was held in LaJolla, California on May 26 to May 31, 2009. The Conference Proceedings are published by the American Institute of Physics in Volume 1182 of the AIP Conference Proceedings (ISBN: 978-0-7354-0723-7). The Proceedings include papers from each of the Conference Presenters and a detailed schedule of talks at the Conference. The Table of Contents of the Conference Proceedings is available at http://scitation.aip.org/content/aip/proceeding/aipcp/1182. Support by the U.S. Department of Energy and by DOE Laboratories was essential to the success of the Conference.

Marshak, Marvin L. [University of Minnesota] [University of Minnesota

2013-11-03T23:59:59.000Z

252

Analytic study for physical protection system (PPS) in nuclear power plants (NPPs)  

Science Journals Connector (OSTI)

Abstract The nuclear safeguard is analyzed in the aspect of the physical protection system (PPS) in nuclear power plants (NPPs). The PPS is reviewed and its related terror scenarios are investigated. The PPS is developed using analytical methods. In the terror scenarios, there are 8 possible cases for the terror attacks to the NPPs. Then, the likelihood of terror is classified by the general terror incidents. The consequence of terror is classified by Design Basis Threat (DBT) of the International Atomic Energy Agency (IAEA) scale. The physical protection method is suggested by defense-in-depth constraints and severe accident countermeasures. Finally, the advanced PPS is constructed, which could be used for the preparation for the possible terror attacks in the NPPs.

Tae Ho Woo

2013-01-01T23:59:59.000Z

253

Canada's National Laboratory for Particle and Nuclear Physics Laboratoire national canadien pour la recherche en physique nuclaire et en physique des particules  

E-Print Network (OSTI)

TRIUMF Canada's National Laboratory for Particle and Nuclear Physics Laboratoire national canadien physics, and jointly sponsored by the Institute of Electrical and Electronic Engineers (IEEE), the Nuclear frontier, be it high-energy physics, astrophysics, material science, or nuclear medicine. It goes without

254

A program in medium-energy nuclear physics. Progress report, January 1, 1992--March 31, 1995  

SciTech Connect

This renewal proposal requests continued funding for our program in experimental medium-energy nuclear physics. The focus of our program remains the understanding of the short-range part of the strong interaction in the nuclear medium. In the past three years we have focused our attention ever more sharply on experiments with real tagged photons at CEBAF. We are part of the Hall-B Collaboration at CEBAF. We are co-spokespersons on two approved CEBAF experiments, Photoreactions on {sup 3}He and Photoabsorption and Photofission of Nuclei, and we are preparing another, Nondiffractive Photoproduction of the {rho} Meson with Linearly Polarized Photons, for presentation to the next CEBAF PAC. We are part of the team that is instrumenting the Photon Tagger and a high-energy tagged polarized-photon beam for Hall B; some of the instrumentation for these projects is being built at our Nuclear Detector Laboratory, under the auspices of The George Washington University Center for Nuclear Studies. Our recent measurements of pion scattering from {sup 3}H and {sup 3}He at LAMPF and of cluster knockout from few-body nuclei at NIKHEF have yielded very provocative results, showing the importance of the very light nuclei as a laboratory for quantifying important aspects of the nuclear many-body force. We look forward to expanding our studies of short-range forces in nuclei, particularly the very fight nuclei using electromagnetic probes and employing the extraordinary power of CEBAF and the CLAS.

Berman, B.L.; Dhuga, K.S.

1994-08-01T23:59:59.000Z

255

Nuclear Instruments and Methods in Physics Research A262 (1987) 353-358 353 North-Holland, Amsterdam  

E-Print Network (OSTI)

UK D.B. SYME and G. HUXTABLE Nuclear Physics Division, AERE, Harwell, Oxfordshire, UK Received6 July of the detector was evaluated using the IBIS (intense bunched ion source) accelerator at AERE, Harwell

de Souza, Romualdo T.

256

Colloquium: Majorana Fermions in nuclear, particle and solid-state physics  

E-Print Network (OSTI)

Ettore Majorana (1906-1938) disappeared while traveling by ship from Palermo to Naples in 1938. His fate has never been fully resolved and several articles have been written that explore the mystery itself. His demise intrigues us still today because of his seminal work, published the previous year, that established symmetric solutions to the Dirac equation that describe a fermionic particle that is its own anti-particle. This work has long had a significant impact in neutrino physics, where this fundamental question regarding the particle remains unanswered. But the formalism he developed has found many uses as there are now a number of candidate spin-1/2 neutral particles that may be truly neutral with no quantum number to distinguish them from their anti-particles. If such particles exist, they will influence many areas of nuclear and particle physics. Most notably the process of neutrinoless double beta decay can only exist if neutrinos are massive Majorana particles. Hence, many efforts to search for this process are underway. Majorana's influence doesn't stop with particle physics, however, even though that was his original consideration. The equations he derived also arise in solid state physics where they describe electronic states in materials with superconducting order. Of special interest here is the class of solutions of the Majorana equation in one and two spatial dimensions at exactly zero energy. These Majorana zero modes are endowed with some remarkable physical properties that may lead to advances in quantum computing and, in fact, there is evidence that they have been experimentally observed. This review first summarizes the basics of Majorana's theory and its implications. It then provides an overview of the rich experimental programs trying to find a fermion that is its own anti-particle in nuclear, particle, and solid state physics.

S. R. Elliott; M. Franz

2014-12-01T23:59:59.000Z

257

Electrical resistance and magnetic properties of the neptunium monopnictides NpAs, NpSb, and NpBi at high pressures  

Science Journals Connector (OSTI)

We report on high-pressure studies performed on the neptunium pnictides NpAs and NpBi via electrical resistance up to ?25 GPa between 1.3 K and room temperature, and on a high-pressure investigation up to 9 GPa and at 4.2 K on NpSb using 237Np Mssbauer spectroscopy. This work extends previous high-pressure studies carried out on NpAs via Mssbauer spectroscopy, on NpSb via resistance, and on all pnictides via x-ray study. In NpX (X=As,Sb,Bi) crystallizing in the cubic-NaCl phase the ground state is antiferromagnetic and displays a noncollinear 3k spin structure. The strong increase of the resistivity with decreasing temperature observed in the temperature range of the 3k order at ambient pressure collapses at 0.23 (NpAs), 2.7 (NpSb), and 3.9 GPa (NpBi). No significant change of the hyperfine interactions is found in NpAs or NpSb at the pressure where the resistance collapse is observed. The Kondo anomaly of the resistivity observed at ambient pressure disappears above 25 GPa (NpAs), 2.7 GPa (NpSb), and 3 GPa (NpBi). The Nel temperature TN of all compounds and the ordered moment of NpAs and NpSb decrease with reduced volume. For NpAs and NpBi the resistance indicates the presence of magnetic order at least up to 16 GPa. The compounds undergo a pressure-induced structural transition with a volume reduction by ?10%. Although in the resistance of NpSb the signature of magnetic order is lost already at 8 GPa in the high-pressure phase, a magnetic hyperfine field is present, which is reduced by ?30% relative to the NaCl phase. It is suggested that the resistance collapse is caused by a change of the magnetic structure, that the decrease of TN is due to a modification of the Fermi surface besides a small 5f delocalization, and that in NpSb the volume reduction in the structural high-pressure phase leads to an enhanced 5f delocalization.

V. Ichas; S. Zwirner; D. Braithwaite; J. C. Spirlet; J. Rebizant; W. Potzel

1997-12-01T23:59:59.000Z

258

Theory-Contraction is NP-Complete  

Science Journals Connector (OSTI)

......problem is NP-complete. To that end, I need to provide the formal de nitions...Indeed, at no time in the future of humankind will the communal belief-system...into the contraction problem. To this end, consider the class of networks all......

Neil Tennant

2003-11-01T23:59:59.000Z

259

Some physical and biological properties of the nuclear polyhedrosis virus of Heliothis zea (Boddie) and Heliothis virescens (Fabricius)  

E-Print Network (OSTI)

University Directed by: Dr. L. L. Keeley Laboratory investi ations were conducted into so ie of the physical and biological properties of the nuclear polyhedrosis virus ("!PV) of Heliothis zea (Boddie) and Peiiothi s virescens (Fabricius). information... the ranges of shapes and. sizes reported f' or other insect nuclear viruses. In contrast, the strength of alkali and dis- solving period necessary to dissolve Heliothis nuclear polyhedra are somewhat higher than those reported for other insect polyhedra...

MacFarlane, Johnny James

2012-06-07T23:59:59.000Z

260

Nuclear Instruments and Methods in Physics Research A 476 (2002) 565568 Bistable damage in neutron-irradiated silicon diodes  

E-Print Network (OSTI)

Nuclear Instruments and Methods in Physics Research A 476 (2002) 565­568 Bistable damage in neutronE15 kO cm) diodes was irradiated at room temperature with neutrons from a nuclear reactor to fluences about neutron spectrum, dosimetry and irradiation facility can be found elsewhere [9]. After

Zavrtanik, Marko

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While these samples are representative of the content of NLEBeta,
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261

Volume 167,number 1,2 CHEMICAL PHYSICS LETTERS 16March 1990 OIUENTATIONAL ANISOTROPY OF NUCLEAR SPIN RELAXATION  

E-Print Network (OSTI)

Volume 167,number 1,2 CHEMICAL PHYSICS LETTERS 16March 1990 OIUENTATIONAL ANISOTROPY OF NUCLEAR. In the case of randomly oriented, multilamellar dispersions of phospholipids in the La phase, powder type 2H to fluctuations in the nuclear quadrupolar interaction is given by [5>61 in which e2qQ/h s 2rcx,where x

Brown, Michael F.

262

Nuclear Instruments and Methods in Physics Research A 542 (2005) 134141 Study of water distribution and transport in a polymer  

E-Print Network (OSTI)

Nuclear Instruments and Methods in Physics Research A 542 (2005) 134­141 Study of water has been developed at the Penn State Breazeale Nuclear Reactor. Neutron images allow us to visualize blockage was observed to occur at low power, while higher power conditions resulted in more dispersed

Mench, Matthew M.

263

GKTC ACTIVITIES TO PROVIDE NUCLEAR MATERIAL PHYSICAL PROTECTION, CONTROL AND ACCOUNTING TRAINING FOR 2011-2012  

SciTech Connect

The GKTC was created at the Kyiv Institute of Nuclear Research as a result of collaborative efforts between the United States and Ukraine. The GKTC has been designated by the Ukrainian Government to provide the MPC&A training and methodological assistance to nuclear facilities and nuclear specialists. In 2010 the GKTC has conducted the planned assessment of training needs of Ukrainian MPC&A specialists. The objective of this work is to acquire the detailed information about the number of MPC&A specialists and guard personnel, who in the coming years should receive the further advanced training. As a result of the performed training needs evaluation the GKTC has determined that in the coming years a number of new training courses need to be developed. Some training courses are already in the process of development. Also taking into account the specific of activity on the guarding of nuclear facilities, GKTC has begun to develop the specialized training courses for the guarding unit personnel. The evaluation of needs of training of Ukrainian specialists on the physical protection shows that without the technical base of learning is not possible to satisfy the needs of Ukrainian facilities, in particular, the need for further training of specialists who maintains physical protection technical means, provides vulnerability assessment and testing of technical means. To increase the training effectiveness and create the basis for specialized training courses holding the GKTC is now working on the construction of an Interior (non-classified) Physical Protection Training Site. The objective of this site is to simulate the actual conditions of the nuclear facility PP system including the complex of engineering and technical means that will help the GKTC training course participants to consolidate the knowledge and gain the practical skills in the work with PP system engineering and technical means for more effective performance of their official duties. This paper briefly describes the practical efforts applied to the provision of physical protection specialists advanced training in Ukraine and real results on the way to implement such efforts in 2011-2012.

Romanova, Olena; Gavrilyuk, Victor I.; Kirischuk, Volodymyr; Gavrilyuk-Burakova, Anna; Diakov, Oleksii; Drapey, Sergiy; Proskurin, Dmitry; Dickman, Deborah A.; Ferguson, Ken

2011-10-01T23:59:59.000Z

264

Benefits of NP | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Nuclear Science Advisory Committee (NSAC) News & Resources Contact Information Nuclear Physics U.S. Department of Energy SC-26Germantown Building 1000 Independence...

265

A nuclear physics program at the Rare Isotope Beams Accelerator Facility in Korea  

SciTech Connect

This paper outlines the new physics possibilities that fall within the field of nuclear structure and astrophysics based on experiments with radioactive ion beams at the future Rare Isotope Beams Accelerator facility in Korea. This ambitious multi-beam facility has both an Isotope Separation On Line (ISOL) and fragmentation capability to produce rare isotopes beams (RIBs) and will be capable of producing and accelerating beams of wide range mass of nuclides with energies of a few to hundreds MeV per nucleon. The large dynamic range of reaccelerated RIBs will allow the optimization in each nuclear reaction case with respect to cross section and channel opening. The low energy RIBs around Coulomb barrier offer nuclear reactions such as elastic resonance scatterings, one or two particle transfers, Coulomb multiple-excitations, fusion-evaporations, and direct capture reactions for the study of the very neutron-rich and proton-rich nuclides. In contrast, the high energy RIBs produced by in-flight fragmentation with reaccelerated ions from the ISOL enable to explore the study of neutron drip lines in intermediate mass regions. The proposed studies aim at investigating the exotic nuclei near and beyond the nucleon drip lines, and to explore how nuclear many-body systems change in such extreme regions by addressing the following topics: the evolution of shell structure in areas of extreme proton to neutron imbalance; the study of the weak interaction in exotic decay schemes such as beta-delayed two-neutron or two-proton emission; the change of isospin symmetry in isobaric mirror nuclei at the drip lines; two protons or two neutrons radioactivity beyond the drip lines; the role of the continuum states including resonant states above the particle-decay threshold in exotic nuclei; and the effects of nuclear reaction rates triggered by the unbound proton-rich nuclei on nuclear astrophysical processes.

Moon, Chang-Bum, E-mail: cbmoon@hoseo.edu [Hoseo University, Asan, Chung-Nam 336-795 (Korea, Republic of)] [Hoseo University, Asan, Chung-Nam 336-795 (Korea, Republic of)

2014-04-15T23:59:59.000Z

266

Energy Recovery Linac cavity at BNL | U.S. DOE Office of Science...  

Office of Science (SC) Website

Energy Recovery Linac cavity at BNL Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Applications of Nuclear Science Applications of Nuclear...

267

BFS, a Legacy to the International Reactor Physics, Criticality Safety, and Nuclear Data Communities  

SciTech Connect

Interest in high-quality integral benchmark data is increasing as efforts to quantify and reduce calculational uncertainties accelerate to meet the demands of next generation reactor and advanced fuel cycle concepts. Two Organization for Economic Cooperation and Development (OECD) Nuclear Energy Agency (NEA) activities, the International Criticality Safety Benchmark Evaluation Project (ICSBEP), initiated in 1992, and the International Reactor Physics Experiment Evaluation Project (IRPhEP), initiated in 2003, have been identifying existing integral experiment data, evaluating those data, and providing integral benchmark specifications for methods and data validation for nearly two decades. Thus far, 14 countries have contributed to the IRPhEP, and 20 have contributed to the ICSBEP. Data provided by these two projects will be of use to the international reactor physics, criticality safety, and nuclear data communities for future decades The Russian Federation has been a major contributor to both projects with the Institute of Physics and Power Engineering (IPPE) as the major contributor from the Russian Federation. Included in the benchmark specifications from the BFS facilities are 34 critical configurations from BFS-49, 61, 62, 73, 79, 81, 97, 99, and 101; spectral characteristics measurements from BFS-31, 42, 57, 59, 61, 62, 73, 97, 99, and 101; reactivity effects measurements from BFS-62-3A; reactivity coefficients and kinetics measurements from BFS-73; and reaction rate measurements from BFS-42, 61, 62, 73, 97, 99, and 101.

J. Blair Briggs; Anatoly Tsibulya; Yevgeniy Rozhikhin

2012-03-01T23:59:59.000Z

268

Problems and challenges of teaching nuclear energy physics in a small university  

Science Journals Connector (OSTI)

Internationally, new (classical) power plants are again being built, and a strong increase in the construction of new plants is expected in the future. In addition, there will soon be a demand for construction of more efficient ones, any of the six so-called Generation IV units, in an increasing number. On the contrary, the education of nuclear energy physics and techniques has stagnated, since little construction has been done over the last decades, and thus there has been little need of this kind of education. The paper presents the situation in Finland, especially the development that has been done over the last 5 years at Abo Akademi University in Turku, south-western Finland. It shows that it is possible to set up a strong educational programme in nuclear energy and provides some guidelines as how to do it.

Tom Lonnroth

2011-01-01T23:59:59.000Z

269

The Physics and Nuclear Nonproliferation Goals of WATCHMAN: A WAter CHerenkov Monitor for ANtineutrinos  

E-Print Network (OSTI)

This article describes the physics and nonproliferation goals of WATCHMAN, the WAter Cherenkov Monitor for ANtineutrinos. The baseline WATCHMAN design is a kiloton scale gadolinium-doped (Gd) light water Cherenkov detector, placed 13 kilometers from a civil nuclear reactor in the United States. In its first deployment phase, WATCHMAN will be used to remotely detect a change in the operational status of the reactor, providing a first- ever demonstration of the potential of large Gd-doped water detectors for remote reactor monitoring for future international nuclear nonproliferation applications. During its first phase, the detector will provide a critical large-scale test of the ability to tag neutrons and thus distinguish low energy electron neutrinos and antineutrinos. This would make WATCHMAN the only detector capable of providing both direction and flavor identification of supernova neutrinos. It would also be the third largest supernova detector, and the largest underground in the western hemisphere. In a...

Askins, M; Bernstein, A; Dazeley, S; Dye, S T; Handler, T; Hatzikoutelis, A; Hellfeld, D; Jaffke, P; Kamyshkov, Y; Land, B J; Learned, J G; Marleau, P; Mauger, C; Gann, G D Orebi; Roecker, C; Rountree, S D; Shokair, T M; Smy, M B; Svoboda, R; Sweany, M; Vagins, M R; van Bibber, K A; Vogelaar, R B; Wetstein, M J; Yeh, M

2015-01-01T23:59:59.000Z

270

Propagation of Cosmic Rays: Nuclear Physics in Cosmic-Ray Studies  

SciTech Connect

The nuclei fraction in cosmic rays (CR) far exceeds the fraction of other CR species, such as antiprotons, electrons, and positrons. Thus the majority of information obtained from CR studies is based on interpretation of isotopic abundances using CR propagation models where the nuclear data and isotopic production cross sections in p- and {alpha}-induced reactions are the key elements. This paper presents an introduction to the astrophysics of CR and diffuse {gamma}-rays and discusses some of the puzzles that have emerged recently due to more precise data and improved propagation models. Merging with cosmology and particle physics, astrophysics of CR has become a very dynamic field with a large potential of breakthrough and discoveries in the near future. Exploiting the data collected by the CR experiments to the fullest requires accurate nuclear cross sections.

Moskalenko, Igor V. [NASA/Goddard Space Flight Center, Code 661, Greenbelt, MD 20771 (United States); Joint Center for Astrophysics/University of Maryland, Baltimore County, Baltimore, MD 21250 (United States); Strong, Andrew W. [Max-Planck-Institut fuer extraterrestrische Physik, Postfach 1603, D-85740 Garching (Germany); Mashnik, Stepan G. [Los Alamos National Laboratory, Los Alamos, NM 87544 (United States)

2005-05-24T23:59:59.000Z

271

Intermediate/high energy nuclear physics. Technical progress report, June 15, 1992--June 14, 1993  

SciTech Connect

Progress during the last year is reviewed under the following topics: relativistic hadron--nucleus and nucleus--nucleus collisions (heavy meson production, photon production and fragmentation functions--direct photon production with the QCM and photon fragmentation functions, Cronin efffect and multiple scattering, effective nuclear parton distributions); solving quantum field theories in nonperturbative regime; light-front dynamics and high-spin states (soft form factor of the pion and nucleon for transverse and longitudinal momentum transfers, light front spinors for high-spin objects); high-energy spin physics; relativistic wave equations, quarkonia, and e{sup +}e{sup {minus}} resonances; associated production of Higgs boson at collider energies, and microscopic nuclear many-body theory and reactions. 135 refs.

Vary, J.P.

1992-12-31T23:59:59.000Z

272

Nuclear Instruments and Methods in Physics Research A 507 (2003) 537540 Production of high power femtosecond terahertz radiation  

E-Print Network (OSTI)

Nuclear Instruments and Methods in Physics Research A 507 (2003) 537­540 Production of high power for Superconductor Photonics, Osaka University, 2-1 Yamadaoko, Suita, Osaka 565-0871, Japan e Physics Department semiconductors or electro-optic crystals by high peak power lasers. For example, this was done by using an un

273

560 Nuclear Instruments and Methods in Physics Research B43 (1989) 560-564 North-Holland, Amsterdam  

E-Print Network (OSTI)

560 Nuclear Instruments and Methods in Physics Research B43 (1989) 560-564 North-Holland, Amsterdam curve (XRC) and Raman 0168-583X/89/$03.50 0 Elsevier Science Publishers B.V. (North-Holland Physics

Woodall, Jerry M.

274

Nuclear Instruments and Methods in Physics Research A 467468 (2001) 321324 A visual program to calculate efficiency and polarization  

E-Print Network (OSTI)

Nuclear Instruments and Methods in Physics Research A 467­468 (2001) 321­324 A visual program Accelerator Laboratory, POSTECH, Pohang, Kyungbuk 790-784, South Korea b Department of Physics and Center. Introduction Diffraction grating is the major component of Vacuum Ultra-Violet (VUV) beamline of synchro- tron

Oh, Se-Jung

275

Reactor Physics and Criticality Benchmark Evaluations for Advanced Nuclear Fuel - Final Technical Report  

SciTech Connect

The nuclear industry interest in advanced fuel and reactor design often drives towards fuel with uranium enrichments greater than 5 wt% 235U. Unfortunately, little data exists, in the form of reactor physics and criticality benchmarks, for uranium enrichments ranging between 5 and 10 wt% 235U. The primary purpose of this project is to provide benchmarks for fuel similar to what may be required for advanced light water reactors (LWRs). These experiments will ultimately provide additional information for application to the criticality-safety bases for commercial fuel facilities handling greater than 5 wt% 235U fuel.

William Anderson; James Tulenko; Bradley Rearden; Gary Harms

2008-09-11T23:59:59.000Z

276

Intermediate/high energy nuclear physics. [Iowa State Univ. , Ames, Iowa  

SciTech Connect

Progress during the last year is reviewed under the following topics: relativistic hadron--nucleus and nucleus--nucleus collisions (heavy meson production, photon production and fragmentation functions--direct photon production with the QCM and photon fragmentation functions, Cronin efffect and multiple scattering, effective nuclear parton distributions); solving quantum field theories in nonperturbative regime; light-front dynamics and high-spin states (soft form factor of the pion and nucleon for transverse and longitudinal momentum transfers, light front spinors for high-spin objects); high-energy spin physics; relativistic wave equations, quarkonia, and e[sup +]e[sup [minus

Vary, J.P.

1992-01-01T23:59:59.000Z

277

DOE-HDBK-1019/2-93; DOE Fundamentals Handbook Nuclear Physics and Reactor Theory Volume 2 of 2  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

2-93 2-93 JANUARY 1993 DOE FUNDAMENTALS HANDBOOK NUCLEAR PHYSICS AND REACTOR THEORY Volume 2 of 2 U.S. Department of Energy FSC-6910 Washington, D.C. 20585 Distribution Statement A. Approved for public release; distribution is unlimited. This document has been reproduced directly from the best available copy. Available to DOE and DOE contractors from the Office of Scientific and Technical Information, P.O. Box 62, Oak Ridge, TN 37831. Available to the public from the National Technical Information Service, U.S. Department of Commerce, 5285 Port Royal., Springfield, VA 22161. Order No. DE93012223 DOE-HDBK-1019/1-93 NUCLEAR PHYSICS AND REACTOR THEORY ABSTRACT The Nuclear Physics and Reactor Theory Handbook was developed to assist nuclear facility operating contractors in providing operators, maintenance personnel, and the technical

278

DOE-HDBK-1019/1-93; DOE Fundamentals Handbook Nuclear Physics and Reactor Theory Volume 1 of 2  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

1-93 1-93 JANUARY 1993 DOE FUNDAMENTALS HANDBOOK NUCLEAR PHYSICS AND REACTOR THEORY Volume 1 of 2 U.S. Department of Energy FSC-6910 Washington, D.C. 20585 Distribution Statement A. Approved for public release; distribution is unlimited. This document has been reproduced directly from the best available copy. Available to DOE and DOE contractors from the Office of Scientific and Technical Information. P.O. Box 62, Oak Ridge, TN 37831. Available to the public from the National Technical Information Services, U.S. Department of Commerce, 5285 Port Royal., Springfield, VA 22161. Order No. DE93012221 DOE-HDBK-1019/1-93 NUCLEAR PHYSICS AND REACTOR THEORY ABSTRACT The Nuclear Physics and Reactor Theory Handbook was developed to assist nuclear

279

arXiv:1004.0373v3[physics.ins-det]8May2012 Measurement of scintillation efficiency for nuclear recoils in liquid argon  

E-Print Network (OSTI)

arXiv:1004.0373v3[physics.ins-det]8May2012 Measurement of scintillation efficiency for nuclear results for nuclear recoil energies between 10 and 250 keVr at zero electric field. II. REVIEW OF PHYSICAL University, New Haven, CT (Dated: May 9, 2012) The scintillation light yield of liquid argon from nuclear

Sheldon, Nathan D.

280

Originally from Venice, Italy Martina studied in Liverpool (UK) for her PhD in Nuclear Physics. In 2003 she started a post-doc at the Lawrence Berkeley National Laboratory, working on the development of gamma-ray tracking detectors for nuclear physics exp  

E-Print Network (OSTI)

Originally from Venice, Italy Martina studied in Liverpool (UK) for her PhD in Nuclear Physics of gamma-ray tracking detectors for nuclear physics experiments. Since May 2005, she is a postdoctoral and, the department! Martina Descovich PhD Education Ph.D. in Nuclear Physics (2003) University

Pouliot, Jean

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


281

The r-process nucleosynthesis: a continued challenge for nuclear physics and astrophysics  

E-Print Network (OSTI)

The identification of the astrophysical site and the specific conditions in which r-process nucleosynthesis takes place remain unsolved mysteries of astrophysics. The present paper emphasizes some important future challenges faced by nuclear physics in this problem, particularly in the determination of the radiative neutron capture rates by exotic nuclei close to the neutron drip line and the fission probabilities of heavy neutron-rich nuclei. These quantities are particularly relevant to determine the composition of the matter resulting from the decompression of initially cold neutron star matter. New detailed r-process calculations are performed and the final composition of ejected inner and outer neutron star crust material is estimated. We discuss the impact of the many uncertainties in the astrophysics and nuclear physics on the final composition of the ejected matter. The similarity between the predicted and the solar abundance pattern for A > 140 nuclei as well as the robustness of the prediction with varied input parameters makes this scenario one of the most promising that deserves further exploration.

S. Goriely; P. Demetriou; H. -Th. Janka; J. M. Pearson; M. Samyn

2004-10-19T23:59:59.000Z

282

Explosive nucleosynthesis: nuclear physics impact using neutrino-driven wind simulations  

E-Print Network (OSTI)

We present nucleosynthesis studies based on hydrodynamical simulations of core-collapse supernovae and their subsequent neutrino-driven winds. Although the conditions found in these simulations are not suitable for the rapid neutron capture (r-process) to produce elements heavier than A$\\sim$130, this can be solved by artificially increasing the wind entropy. In this way one can mimic the general behavior of an ejecta where the r-process occurs. We study the impact of the long-time dynamical evolution and of the nuclear physics input on the final abundances and show that different nuclear mass models lead to significant variations in the abundances. These differences can be linked to the behavior of nuclear masses far from stability. In addition, we have analyzed in detail the effect of neutron capture and beta-delayed neutron emission when matter decays back to stability. In all our studied cases, freeze out effects are larger than previously estimated and produce substantial changes in the post freeze out abundances.

A. Arcones; G. Martinez-Pinedo

2010-12-14T23:59:59.000Z

283

EVALUATION METHODOLOGY FOR PROLIFERATION RESISTANCE AND PHYSICAL PROTECTION OF GENERATION IV NUCLEAR ENERGY SYSTEMS: AN OVERVIEW.  

SciTech Connect

This paper provides an overview of the methodology approach developed by the Generation IV International Forum Expert Group on Proliferation Resistance & Physical Protection for evaluation of Proliferation Resistance and Physical Protection robustness of Generation IV nuclear energy systems options. The methodology considers a set of alternative systems and evaluates their resistance or robustness to a collection of potential threats. For the challenges considered, the response of the system to these challenges is assessed and expressed in terms of outcomes. The challenges to the system are given by the threats posed by potential proliferant States and sub-national adversaries on the nuclear systems. The characteristics of the Generation IV systems, both technical and institutional, are used to evaluate their response to the threats and determine their resistance against the proliferation threats and robustness against sabotage and theft threats. System response encompasses three main elements: (1) System Element Identification. The nuclear energy system is decomposed into smaller elements (subsystems) at a level amenable to further analysis. (2) Target Identification and Categorization. A systematic process is used to identify and select representative targets for different categories of pathways, within each system element, that actors (proliferant States or adversaries) might choose to use or attack. (3) Pathway Identification and Refinement. Pathways are defined as potential sequences of events and actions followed by the proliferant State or adversary to achieve its objectives (proliferation, theft or sabotage). For each target, individual pathway segments are developed through a systematic process, analyzed at a high level, and screened where possible. Segments are connected into full pathways and analyzed in detail. The outcomes of the system response are expressed in terms of PR&PP measures. Measures are high-level characteristics of a pathway that include information important to the evaluation methodology users and to the decisions of a proliferant State or adversary. They are first evaluated for segments and then aggregated for complete pathways. Results are aggregated as appropriate to permit pathway comparisons and system assessment. The paper highlights the current achievements in the development of the Proliferation Resistance and Physical Protection Evaluation Methodology. The way forward is also briefly presented together with some conclusions.

BARI, R.; ET AL.

2006-03-01T23:59:59.000Z

284

22.101 Applied Nuclear Physics (Fall 2006) Lecture 8 (10/4/06) Neutron-Proton Scattering  

E-Print Network (OSTI)

We continue the study of the neutron-proton system by taking up the well-known problem of neutron scattering in hydrogen. The scattering cross section has been carefully measured to be 20.4 barns over a wide energy range. Our intent is to apply the method of phase shifts summarized in the preceding lecture to this problem. We see very quickly that the s-wave approximation (the condition of interaction at low energy) is very well justified in the neutron energy range of 1- 1000 eV. The scattering-state solution, with E> 0, gives us the phase shift or equivalently the scattering length. This calculation yields a cross section of 2.3 barns which is considerably different from the experimental value. The reason for the discrepancy lies in the fact that we have not taken into account the spin-dependent nature of the n-p interaction. The neutron and proton spins can form two distinct spin configurations, the two spins being parallel (triplet state) or anti-parallel (singlet), each giving rise to a scattering length. When this is taken into account, the new estimate is quite close to the experimental value. The conclusion is therefore that n-p interaction is spin-dependent and that the anomalously large value of the hydrogen scattering cross section for neutrons is really due to this aspect of the nuclear force. For the scattering problem our task is to solve the radial wave equation for s-wave for solutions with E> 0. The interior and exterior solutions have the form ur () = Bsin ( Kr ' ) , r < ro (8.1) and ur () = C sin(

unknown authors

285

Cooperative efforts to improve nuclear materials accounting, control and physical protection at the National Science Center, Kharkov Institute of Physics and Technology  

SciTech Connect

The US Department of Energy (DOE) and the Ukrainian Government are engaged in a program of cooperation to enhance the nonproliferation of nuclear weapons by developing a strong national system of nuclear material protection, control, and accounting (MPC and A). This paper describes the capabilities and work of the Kharkov Institute of Physics and Technology (KIPT) and cooperative efforts to improve MPC and A at this facility. It describes how these cooperative efforts grew out of Ukraine`s decision to become a non-nuclear weapon state and the shortcomings in MPC and A that developed at KIPT after the disintegration of the former Soviet Union. It also envisions expanded future cooperation in other areas of nuclear materials management.

Zelensky, V.F.; Mikhailov, V.A. [Kharkov Inst. of Physics and Technology (Ukraine). National Science Center

1996-12-31T23:59:59.000Z

286

INSTITUTE OF PHYSICS PUBLISHING and INTERNATIONAL ATOMIC ENERGY AGENCY NUCLEAR FUSION Nucl. Fusion 42 (2002) 13511356 PII: S0029-5515(02)54166-1  

E-Print Network (OSTI)

INSTITUTE OF PHYSICS PUBLISHING and INTERNATIONAL ATOMIC ENERGY AGENCY NUCLEAR FUSION Nucl. Fusion input of converging driver beams. Requirements and key issues related to target injection and tracking

Najmabadi, Farrokh

287

DOE/NSF Nuclear Science Advisory Committee Meeting | U.S. DOE...  

Office of Science (SC) Website

DOENSF Nuclear Science Advisory Committee Meeting Nuclear Science Advisory Committee (NSAC) NSAC Home Meetings Members ChargesReports Charter .pdf file (629KB) NP Committees of...

288

DOE/NSF Nuclear Science Advisory Committee Meeting | U.S. DOE...  

Office of Science (SC) Website

Meetings DOENSF Nuclear Science Advisory Committee Meeting Nuclear Science Advisory Committee (NSAC) NSAC Home Meetings Members ChargesReports Charter .pdf file (629KB) NP...

289

Physical and Mathematical Description of Nuclear Weapons Identification System (NWIS) Signatures  

SciTech Connect

This report describes all time and frequency analysis parameters measured with the new Nuclear Weapons Identification System (NWIS) processor with three input channels: (1) the 252Cf source ionization chamber (2) a detection channel; and (3) a second detection channel for active measurements. An intuitive and physical description of the various functions is given as well as a brief mathematical description and a brief description of how the data are acquired. If the fill five channel capability is used, the number of functions increases in number but not in type. The parameters provided by this new NWIS processor can be divided into two general classes: time analysis signatures including multiplicities and frequency analysis signatures. Data from measurements with an 18.75 kg highly enriched uranium (93.2 wt 0/0, 235U) metai casting for storage are presented to illustrate the various time and frequency analysis parameters.

Mattingly, J.K.; Mihalczo, J.T.; Mullens, J.A.; Valentine, T.E.

1997-09-26T23:59:59.000Z

290

Precision physics of simple atoms: QED tests, nuclear structure and fundamental constants  

E-Print Network (OSTI)

Quantum electrodynamics is the first successful and still the most successful quantum field theory. Simple atoms, being essentially QED systems, allow highly accurate theoretical predictions. Because of their simple spectra, such atoms have been also efficiently studied experimentally frequently offering the most precisely measured quantities. Our review is devoted to comparison of theory and experiment in the field of precision physics of light simple atoms. In particular, we consider the Lamb shift in the hydrogen atom, the hyperfine structure in hydrogen, deuterium, helium-3 ion, muonium and positronium, as well as a number of other transitions in positronium. Additionally to a spectrum of unperturbed atoms, we consider annihilation decay of positronium and the g factor of bound particles in various two-body atoms. Special attention is paid to the uncertainty of the QED calculations due to the uncalculated higher-order corrections and effects of the nuclear structure. We also discuss applications of simple atoms to determination of several fundamental constants.

Savely G. Karshenboim

2005-09-01T23:59:59.000Z

291

Neutron and nuclear data revised for the 1997/98 handbook of chemistry and physics  

SciTech Connect

The 1997/98 Handbook of Chemistry and Physics will contain revised nuclear data information dealing with scattering and absorption properties of neutrons. All of these nuclear data were recently reevaluated. The 2,200 meter per second neutron cross sections and the neutron resonance integrals evaluation was performed in conjunction with the 1997 KAPL Wall-Chart of the Nuclides to insure consistency in the recommended values in the Handbook and on the Chart. The 2,200 meters per second neutron cross sections presented in the Handbook correspond to room temperature neutrons, 20.43 C, or a thermal neutron energy of 0.0253 electron volts, (eV). Neutron resonance integrals are defined over the energy range from 0.5 eV up to 0.1 {times} 10{sup 6} eV. They are averaged over a flux spectrum with a 1/E shape. Evaluated experimental data are derived from either a direct measurement or from 1/E spectrum averaged resonance parameter information. Resonance integrals are presented for neutron capture, charged particle or neutron fission reactions. Thermal neutron scattering is used for the investigation of the static and dynamic properties of condensed matter and it requires a knowledge of neutron scattering lengths. The Handbook presents bound atom neutron coherent scattering lengths in units of fentometers. Stellar slow neutron capture processes occur in a thermal neutron spectrum with temperatures approximately 30 keV. 30 keV Maxwellian averaged neutron cross sections for astrophysical applications are a new parameter presented in the 78th edition of the Handbook. No new parameters will be added to the Table of Isotopes` nuclear information but revised values will be provided for parameters of all known nuclides of the 112 chemical elements.

Holden, N.E. [Brookhaven National Lab., Upton, NY (United States). Reactor Div.

1997-07-01T23:59:59.000Z

292

The design of high-speed data transmission method for a small nuclear physics DAQ system  

E-Print Network (OSTI)

A large number of data need to be transmitted in high-speed between Field Programmable Gate Array (FPGA) and Advanced RISC Machines 11 micro-controller (ARM11) when we design a small data acquisition (DAQ) system for nuclear experiments. However, it is a complex problem to beat the target. In this paper, we will introduce a method which can realize the high-speed data transmission. By this way, FPGA is designed to acquire massive data from Front-end electronics (FEE) and send it to ARM11, which will transmit the data to other computer through the TCP/IP protocol. This paper mainly introduces the interface design of the high-speed transmission between FPGA and ARM11, the transmission logic of FPGA and the driver program of ARM11. The research shows that the maximal transmission speed between FPGA and ARM11 by this way can reach 50MB/s theoretically, while in nuclear physics experiment, the system can acquire data with the speed of 2.2MB/s.

Zhou, Wenxiong; Nan, Gangyang; Zhang, Jianchuan

2013-01-01T23:59:59.000Z

293

High-resolution coupled physics solvers for analysing fine-scale nuclear reactor design problems  

Science Journals Connector (OSTI)

...solvers for analysing fine-scale nuclear reactor design problems Vijay S. Mahadevan...analysis of current and future nuclear reactor models is being investigated...in radiation hydrodynamics, nuclear reactor analysis, fluid-structure...

2014-01-01T23:59:59.000Z

294

Applications of FLUKA Monte Carlo Code for Nuclear and Accelerator Physics  

SciTech Connect

FLUKA is a general purpose Monte Carlo code capable of handling all radiation components from thermal energies (for neutrons) or 1 keV (for all other particles) to cosmic ray energies and can be applied in many different fields. Presently the code is maintained on Linux. The validity of the physical models implemented in FLUKA has been benchmarked against a variety of experimental data over a wide energy range, from accelerator data to cosmic ray showers in the Earth atmosphere. FLUKA is widely used for studies related both to basic research and to applications in particle accelerators, radiation protection and dosimetry, including the specific issue of radiation damage in space missions, radiobiology (including radiotherapy) and cosmic ray calculations. After a short description of the main features that make FLUKA valuable for these topics, the present paper summarizes some of the recent applications of the FLUKA Monte Carlo code in the nuclear as well high energy physics. In particular it addresses such topics as accelerator related applications.

Battistoni, Giuseppe; /INFN, Milan /Milan U.; Broggi, Francesco; /INFN, Milan /Milan U.; Brugger, Markus; /CERN; Campanella, Mauro; /INFN, Milan /Milan U.; Carboni, Massimo; /INFN, Legnaro; Empl, Anton; /Houston U.; Fasso, Alberto; /SLAC; Gadioli, Ettore; /INFN, Milan /Milan U.; Cerutti, Francesco; /CERN; Ferrari, Alfredo; /CERN; Ferrari, Anna; /Frascati; Lantz, Matthias; /Nishina Ctr., RIKEN; Mairani, Andrea; /INFN, Milan /Milan U.; Margiotta, M.; /INFN, Bologna /Bologna U.; Morone, Christina; /Rome U.,Tor Vergata /INFN, Rome2; Muraro, Silvia; /INFN, Milan /Milan U.; Parodi, Katerina; /HITS, Heidelberg; Patera, Vincenzo; /Frascati; Pelliccioni, Maurizio; /Frascati; Pinsky, Lawrence; /Houston U.; Ranft, Johannes; /Siegen U. /CERN /Seibersdorf, Reaktorzentrum /INFN, Milan /Milan U. /SLAC /INFN, Legnaro /INFN, Bologna /Bologna U. /CERN /HITS, Heidelberg /CERN /CERN /Frascati /CERN /CERN /CERN /CERN /NASA, Houston

2012-04-17T23:59:59.000Z

295

Progress on an integrated multi-physics simulation predictive capability for plasma chamber nuclear components  

SciTech Connect

Understanding the behavior of a plasma chamber component in the fusion environment requires a simulation technique that is capable of integrating multi-disciplinary computational codes while appropriately treating geometric heterogeneity and complexity. Such a tool should be able to interpret phenomena from mutually dependent scientific disciplines and predict performance with sufficient accuracy and consistency. Integrated multi-physics simulation predictive capability (ISPC) relies upon advanced numerical simulation techniques and is being applied to ITER first wall/shield and Test Blanket Module (TBM) designs. In this paper, progress in ISPC development is described through the presentation of a number of integrated simulations. The simulations cover key physical phenomena encountered in a fusion plasma chamber system, including tritium permeation, fluid dynamics, and structure mechanics. Interface engines were developed in order to pass field data, such as surface deformation or nuclear heating rate, from the structural analysis to the thermo-fluid MHD analysis code for magnetohydrodynamic (MHD) velocity profile assessments, or from the neutronics analysis to the thermo-fluid analysis for temperature calculations, respectively. Near-term effort toward further ISPC development is discussed.

A. Ying; M. Abdou; H. Zhang; R. Munipalli; M. Ulrickson; M. Sawan; B. Merrill

2010-12-01T23:59:59.000Z

296

Low Energy Ion Implantationin Semiconductor Manufacturing | U...  

Office of Science (SC) Website

Low Energy Ion Implantation in Semiconductor Manufacturing Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Applications of Nuclear Science...

297

Ion Sources for High Energy Ion Implantation at BNL | U.S. DOE...  

Office of Science (SC) Website

Ion Sources for High Energy Ion Implantation at BNL Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Applications of Nuclear Science...

298

Energy Recovered Light Source Technology at TJNAF | U.S. DOE...  

Office of Science (SC) Website

Energy Recovered Light Source Technology at TJNAF Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Applications of Nuclear Science...

299

High Current Energy Recovery Linac at BNL | U.S. DOE Office of...  

Office of Science (SC) Website

High Current Energy Recovery Linac at BNL Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Applications of Nuclear Science Applications of...

300

Neutrinoless double beta decay in deformed nuclei: its implications in particle and nuclear physics .  

E-Print Network (OSTI)

??In my thesis, we calculated the Nuclear Matrix Elements (NME) for neutrinoless double beta decay (0??? decay). Neutrinoless double beta decay is a rare nuclear (more)

Fang, DongLiang

2011-01-01T23:59:59.000Z

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


301

arXiv:physics/0302084v124Feb2003 Alignment-to-orientation conversion and nuclear quadrupole resonance  

E-Print Network (OSTI)

, California 94720-1460 (Dated: February 24, 2003) The role of alignment-to-orientation conversion (AOC) in nuclear quadrupole resonance (NQR) is discussed. AOC is shown to be the mechanism responsible are drawn between NQR and AOC in atomic physics. PACS numbers: 76.60.Gv, 32.80.Bx Polarization is a generic

Budker, Dmitry

302

Paul Sellin, Centre for Nuclear and Radiation Physics Charge transport and mobility mapping in CdTe  

E-Print Network (OSTI)

Paul Sellin, Centre for Nuclear and Radiation Physics Charge transport and mobility mapping in CdTe, JAP 92 (2002) 3198-3206 Introduction Motivation for this Work: r THM-grown CdTe supplied by Eurorad signal response? r Pulse shape analysis can identify regions of trapping or reduced mobility r Does CdTe

Sellin, Paul

303

Nuclear Instruments and Methods in Physics Research A 422 (1999) 756--760 Dose mapping of inhomogeneities positioned in radiosensitive  

E-Print Network (OSTI)

Nuclear Instruments and Methods in Physics Research A 422 (1999) 756--760 Dose mapping reserved. Keywords: PAG; Dosimetry; Magnetic resonance imaging; Polyacrylamide gel; Gel dosimetry 1 0 3 1 - 6 #12;light attenuation have been proposed [4]. The ap- plications of gel dosimetry so far

Doran, Simon J.

304

429Nuclear Instruments and Methods in Physics Research B14 (1986) 429-435 North-Holland, Amsterdam  

E-Print Network (OSTI)

Section III. molecular ion ejection SPU'ITERING OF BIOMOLECULES BY FAST HEAVY IONS B. SUNDQVIST, A. HEDIN-751 21 U~~sa~a, Sweden R.E. JOHNSON Department of Nuclear Engineering and Engineering Physics, Unroersity of Virginia, Charlottesville, USA The ejection of large intact molecular ions from a sample

Johnson, Robert E.

305

Workshop materials from the 2nd international training course on physical protection of nuclear facilities and materials, Module 13  

SciTech Connect

This course is intended for representatives of countries where nuclear power is being developed and whose responsibilities include the preparation of regulation and the design and evaluation of physical protection systems. This is the second of two volumes; the first volume is SAND-79-1090. (DLC)

Martin, F. P. [ed.

1980-04-01T23:59:59.000Z

306

Physics  

NLE Websites -- All DOE Office Websites (Extended Search)

Physics Physics1354608000000PhysicsSome of these resources are LANL-only and will require Remote Access.No Physics Some of these resources are LANL-only and will require Remote...

307

ScienceDirect -Nuclear Instruments and Methods in Physics Researc... 1 of 2 3/16/05 4:36 PM  

E-Print Network (OSTI)

ScienceDirect - Nuclear Instruments and Methods in Physics Researc... 1 of 2 3/16/05 4:36 PM: Quick Search: within All Full-text SourcesAll Full-text Sources 2 of 2 Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Volume 407

Ng, Chung-Sang

308

Nuclear Instruments and Methods in Physics Research A 513 (2003) 585595 The RPI multiplicity detector response to g-ray cascades  

E-Print Network (OSTI)

Nuclear Instruments and Methods in Physics Research A 513 (2003) 585­595 The RPI multiplicity Physics, School of Science, National University of Defense Technology, Changsha, Hunan, 410073, People's Republic of China b Department of Mechanical, Aerospace and Nuclear Engineering, Rensselear Polytechnic

Danon, Yaron

309

Nuclear Instruments and Methods in Physics Research A 515 (2003) 458466 Energy resolution of a silicon detector with the RX64 ASIC  

E-Print Network (OSTI)

Nuclear Instruments and Methods in Physics Research A 515 (2003) 458­466 Energy resolution of Physics and Nuclear Techniques, Academy of Mining and Metallurgy, Cracow, Poland d Dipartimento di Fisica Sperimentale dell'Universit"a di Torino and INFN, Torino, Italy g CINVESTAV, Mexico City, Mexico h Dipartimento

Ramello, Luciano

310

The U.S. Department of Energy's Brookhaven National Laboratory P.O. Box 5000, Upton NY 11973 631 344-2345 www.bnl.gov Nuclear Physics  

E-Print Network (OSTI)

the Office of Nuclear Physics within the U.S. Department of Energy's Office of Science, RHIC gives physicists of Nuclear Physics within the U.S. Department of Energy's Office of Science Total Upgrade Cost: $ 700 millionThe U.S. Department of Energy's Brookhaven National Laboratory · P.O. Box 5000, Upton NY 11973

311

Beta Emitter Np238. I. Beta Spectroscopy  

Science Journals Connector (OSTI)

The beta decay of Np238 has been studied with several beta spectrometers. In addition to the known conversion lines corresponding to transitions of energies now determined as 44.0, 102.2, 986, and 1029 kev, new conversion lines, corresponding to transitions of 942 and 927 kev were found. These transitions indicate the presence of closely spaced levels at higher excitation energies. Intensities of conversion lines and beta groups were determined and compared with previous work. Fermi-Kurie plots confirm the allowed shape of the hard beta group (1.25 Mev) and give indication of complexity in the soft beta group (0.27 Mev). The energy deviations of the ground rotational band levels from the simple rotational energy formula are discussed.

John O. Rasmussen and Thomas O. Passell

1955-07-01T23:59:59.000Z

312

BornOppenheimer invariants along nuclear configuration paths Department of Physical Chemistry and the Lise Meitner Minerva Center for Quantum Chemistry,  

E-Print Network (OSTI)

Born­Oppenheimer invariants along nuclear configuration paths Roi Baera) Department of Physical of the wave function. This is done for each calculated state at each nuclear position. Thus he defines a Born to an arbitrary path in nuclear configuration space. We identify invariant electronic states along these paths

Baer, Roi

313

Measurement of ? rays from 15N(p,?)16O cascade and 15N(p,?1?)12C reactions  

Science Journals Connector (OSTI)

Background The main energy production mechanism for massive stars during hydrogen burning is the CNO cycle. The reactions 15N(p,?)16O and 15N(p,?0)12C form a branch point in this cycle. The ratio of the corresponding reaction rates determines the CNO abundances evolving during this early stage of the star's life which affects the subsequent nucleosynthesis in later phases of stellar evolution. Determining the cross sections for these reactions at stellar energies is often very difficult. Measurements of other reactions that populate the same compound nucleus can often be used to indirectly determine the cross section of interest.Purpose The nuclear level properties of broad resonances in 16O which characterize the cross section of the reactions 15N(p,?)16O and 15N(p,?0)12C must be well known in order to accurately extrapolate the measured cross sections to the stellar energy range. The R-matrix formalism is a powerful technique for interpreting these cross sections and is greatly enhanced by additional data in other reaction channels. In a previous publication, measurements were reported for the cross section of the reaction 15N(p,?)16O for the ground state transition only. Concurrently, ?-ray measurements were recorded for the cascade transitions to the Ex = 6.050, 6.130, and 7.117 MeV bound states of 16O as well as from the reaction 15N(p,?1?)12C. Excitation curves for the cascade transitions have never been measured and the excitation curve data for the 15N(p,?1?)12C reaction found in the literature may suffer from substantial errors due to target contamination.Methods Angle integrated cross sections are measured over the proton energy range from Ep = 0.14 to 1.80 MeV for the ?-ray cascade transitions and for the reaction 15N(p,?1?)12C.Results De-excitations associated with several compound nucleus states in 16O are observed in both the ?-ray and ?1 channels. An R-matrix analysis is performed and partial decay widths are deduced for several previously unobserved decay branchings from these states.Conclusion For the first time, excitation curves for the cascade transitions to the 16O bound states at Ex = 6.050, 6.130, and 7.117 MeV are reported over the energy range from Ep = 0.14 to 1.80 MeV. In addition, an improved measurement of the 15N(p,?1?)12C excitation curve has been made over a similar energy range.

G. Imbriani; R. J. deBoer; A. Best; M. Couder; G. Gervino; J. Grres; P. J. LeBlanc; H. Leiste; A. Lemut; E. Stech; F. Strieder; E. Uberseder; M. Wiescher

2012-06-27T23:59:59.000Z

314

Evaluation of the Carba NP Test for Carbapenemase Detection  

Science Journals Connector (OSTI)

...Susceptibility Evaluation of the Carba NP Test for Carbapenemase Detection Monica osterblad...of Turku, Turku, Finland The Carba NP test was evaluated against a panel of 61 carbapenemase-producing...methods such as the modified cloverleaf test, and disk tests with different inhibitors...

Monica sterblad; Antti J. Hakanen; Jari Jalava

2014-09-22T23:59:59.000Z

315

Proceedings of the Fourth International Workshop on Software Engineering and Artificial Intelligence for High Energy and Nuclear Physics, eds. B. Denby and D. PerretGallix, International Journal of Modern  

E-Print Network (OSTI)

Intelligence for High Energy and Nuclear Physics, eds. B. Denby and D. Perret­Gallix, International Journal on Software Engineering and Artificial Intelligence for High Energy and Nuclear Physics, Pisa, Italy, April 3

Peterson, Carsten

316

NP Budget | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

NP NP Budget Budget Budget Home About Budget by Program ASCR Budget BES Budget BER Budget FES Budget HEP Budget NP Budget WDTS Budget SLI & SS Budget SCPD Budget GAO Audit Reports External Links Contact Information Budget U.S. Department of Energy SC-41/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3541 F: (301) 903-9524 More Information » Budget by Program NP Budget Print Text Size: A A A RSS Feeds FeedbackShare Page The following links contain NP's budget request to Congress for current and prior years: FY2014 Budget Request to Congress .pdf file (874KB) FY2013 Budget Request to Congress .pdf file (358KB) FY2012 Budget Request to Congress .pdf file (609KB) FY2011 Budget Request to Congress .pdf file (495KB) FY2010 Budget Request to Congress .pdf file (475KB)

317

Theoretical nuclear physics: Final report for period February 1, 1984 to January 31, 1987  

SciTech Connect

Nuclear theory at the University of Colorado emphasizes the study of nuclear structure through the use of nuclear reactions. Recent efforts have been focussed on the role of relativistic models in nucleon-nucleus scattering and reactions. Further work delves into the underlying bases of the reaction theory itself.

Rost, E.; Kunz, P.D.

1987-01-23T23:59:59.000Z

318

Nuclear Physics B (Proc. Suppl.) 77 (1999) 64--72 Standard Solar Models  

E-Print Network (OSTI)

reactions. Thirty­nine experts in low energy nuclear ex­ periments and theory, representing many di#er­ ent In this section, I will first summarize the new and relevant results on nuclear fusion reactions and on the screening of nuclear reactions and then summarize the situation with respect to neu­ trino cross sections

Bahcall, John

319

Advances in nuclear engineering and radiation health physics at Oregon State University  

SciTech Connect

The department of Nuclear Engineering at Oregon State University (OSU) was established as a separate, stand-alone department in 1972, although nuclear engineering courses had been offered since 1957 in the Department of Mechanical Engineering. By the late 1960s, BS, MS, and PhD degrees were being offered in nuclear engineering. A major curriculum revision occurred in 1972, concurrent with the development of a 4-yr BS degree program in nuclear engineering technology (NET). The NET program was suspended about 1980, due to limited financial support and to a misunderstanding by industry of the difference between a BS-level NET graduate and a 2-yr trained nuclear technician.

Klein, A.C.; Binney, S.E. [Oregon State Univ., Corvallis, OR (United States)

1997-12-01T23:59:59.000Z

320

Nuclear Properties of 93237  

Science Journals Connector (OSTI)

The isotope Np237, produced as the decay product of the previously known 6.8-day U237, has been isolated with carrier material and some of its nuclear properties measured. The U237 was formed by means of the reaction U238(n,2n)U237. Np237 decays with the emission of alphaparticles with a half-life of about 3106 years. It has been shown that the upper limit for the cross section for the fission of Np237 with slow neutrons is less than 1 percent of that of U235.

Arthur C. Wahl and Glenn T. Seaborg

1948-05-01T23:59:59.000Z

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


321

Research in heavy-ion nuclear physics. [Dept. of Physics and Astronomy, The Univ. of Kansas, Lawrence, Kansas  

SciTech Connect

Attention was focused on the fission process in light nuclear systems. A model calculation based on the transition-state model of nuclear fission was applied to [sup 47]V fission as populated through multiple entrance channels and to fusion-fission cross sections for production of [sup 28]Al through three different entrance channels. Angular distributions are shown for different mass channels of the [sup 29]Si+[sup 27]Al reaction at E[sub lab] = 125 MeV. Pronounced structure is seen in the symmetric and near-symmetric fission channels from the [sup 24]Mg+[sup 24]Mg reaction; cross sections for binary fragment emission are shown for E[sub lab] = 90 MeV. A large Bragg-curve detector was used in this experiment. Ways to optimize detector response were studied; in addition, the Bragg detector was instrumented with an internal position-sensitive multiwire proportional counter.

Sanders, S.J.; Prosser, F.W.

1992-01-01T23:59:59.000Z

322

Nuclear Science and Physics Data from the Isotopes Project, Lawrence Berkeley National Laboratory (LBNL)  

DOE Data Explorer (OSTI)

The Isotopes Project pages at Lawrence Berkeley National Laboratory have been a source of nuclear data and reference information since the mid-nineties. Almost all of the data, the results of analyses, the specialized charts and interfaces, and the extensive bibiographic references are fed to the National Nuclear Data Center (NNDC) at Brookhaven National Laboratory and maintained there. The Isotope Project pages at LBNL provide a glimpse of early versions for many of the nuclear data resources.

323

Optical Absorption, Stability and Structure of NpO2+ Complexes with Dicarboxylic Acids  

E-Print Network (OSTI)

Np(V)/IDA complex, the absorption band still shows, but theOptical Absorption, Stability and Structure of NpO 2+and the intensity of the absorption band of NpO 2+ at 980 nm

Guoxin Tian; Linfeng Rao

2006-01-01T23:59:59.000Z

324

Physics  

NLE Websites -- All DOE Office Websites (Extended Search)

Physics Physics Physics Print Because a large proportion of ALS experiments are "physics" experiments, it's useful to separate them into two categories - one focused on Materials/Condensed Matter, and this one, with a dual focus on AMO (atomic, molecular, and optical) physics and accelerator physics. Light sources such as the ALS have opened up research frontiers that may hold the answers to fundamental questions about structure and dynamics in AMO physics. The advanced spectroscopies that have been developed here provide the ability to control and probe atomic and molecular processes with unprecedented precision. In particular, the spectral resolution, brightness, broad tunability, and polarization control generate novel avenues for the study of tailored states, inner-shell processes, and nonperturbative electron interactions. Driven by the high brightness of the ALS, a whole new world of vacuum ultraviolet (VUV) and soft x-ray physics has emerged through the development of combined techniques to excite, select, and probe atoms, molecules, and clusters.

325

B{yields}{pi}K puzzle and new physics  

SciTech Connect

The present B{yields}{pi}K data is studied in the context of the standard model (SM) and with new physics (NP). We confirm that the SM has difficulties explaining the B{yields}{pi}K measurements. By adopting an effective-lagrangian parametrization of NP effects, we are able to rule out several classes of NP. Our model-independent analysis shows that the B{yields}{pi}K data can be accommodated by NP in the electroweak penguin sector.

Baek, Seungwon; Hamel, Philippe; London, David; Datta, Alakabha; Suprun, Denis A. [Laboratoire Rene J.-A. Levesque, Universite de Montreal, C.P. 6128, succ. centre-ville, Montreal, QC, H3C 3J7 (Canada); Department of Physics, University of Toronto, 60 St. George Street, Toronto, ON, M5S 1A7 (Canada); Physics Department, Brookhaven National Laboratory, Upton, New York, USA, 11973 (United States)

2005-03-01T23:59:59.000Z

326

The B -> pi K Puzzle and New Physics  

E-Print Network (OSTI)

The present B -> pi K data is studied in the context of the standard model (SM) and with new physics (NP). We confirm that the SM has difficulties explaining the B -> pi K measurements. By adopting an effective-lagrangian parametrization of NP effects, we are able to rule out several classes of NP. Our model-independent analysis shows that the B -> pi K data can be accommodated by NP in the electroweak penguin sector.

Baek, S; London, D; Datta, A; Suprun, D A; Baek, Seungwon; Hamel, Philippe; Datta, David London Alakabha; Suprun, Denis A.

2005-01-01T23:59:59.000Z

327

The B -> pi K Puzzle and New Physics  

E-Print Network (OSTI)

The present B -> pi K data is studied in the context of the standard model (SM) and with new physics (NP). We confirm that the SM has difficulties explaining the B -> pi K measurements. By adopting an effective-lagrangian parametrization of NP effects, we are able to rule out several classes of NP. Our model-independent analysis shows that the B -> pi K data can be accommodated by NP in the electroweak penguin sector.

Seungwon Baek; Philippe Hamel; David London; Alakabha Datta; Denis A. Suprun

2004-12-07T23:59:59.000Z

328

INSTITUTE OF PHYSICS PUBLISHING and INTERNATIONAL ATOMIC ENERGY AGENCY NUCLEAR FUSION Nucl. Fusion 42 (2002) 13821392 PII: S0029-5515(02)55646-5  

E-Print Network (OSTI)

INSTITUTE OF PHYSICS PUBLISHING and INTERNATIONAL ATOMIC ENERGY AGENCY NUCLEAR FUSION Nucl. Fusion of alpha parameters, along with the qMHD profiles and MHD equilibria are being used as inputs to codes

Budny, Robert

329

INSTITUTE OF PHYSICS PUBLISHING and INTERNATIONAL ATOMIC ENERGY AGENCY NUCLEAR FUSION Nucl. Fusion 46 (2006) 412418 doi:10.1088/0029-5515/46/4/002  

E-Print Network (OSTI)

INSTITUTE OF PHYSICS PUBLISHING and INTERNATIONAL ATOMIC ENERGY AGENCY NUCLEAR FUSION Nucl. Fusion to reach high values of Q (the ratio between fusion power and input power) can be carried out in existing

Zonca, Fulvio

330

INSTITUTE OF PHYSICS PUBLISHING and INTERNATIONAL ATOMIC ENERGY AGENCY NUCLEAR FUSION Nucl. Fusion 43 (2003) 10911100 PII: S0029-5515(03)67571-X  

E-Print Network (OSTI)

INSTITUTE OF PHYSICS PUBLISHING and INTERNATIONAL ATOMIC ENERGY AGENCY NUCLEAR FUSION Nucl. Fusion at low values of B. The RMF drive sustains particles as well as flux, and resistive input powers can

Washington at Seattle, University of

331

INSTITUTE OF PHYSICS PUBLISHING and INTERNATIONAL ATOMIC ENERGY AGENCY NUCLEAR FUSION Nucl. Fusion 44 (2004) L1L4 PII: S0029-5515(04)72941-5  

E-Print Network (OSTI)

INSTITUTE OF PHYSICS PUBLISHING and INTERNATIONAL ATOMIC ENERGY AGENCY NUCLEAR FUSION Nucl. Fusion­2 MHz) (the uncertainty is due to the error bar of the kinetic input profiles). This result has been

Vlad, Gregorio

332

INSTITUTE OF PHYSICS PUBLISHING and IAEA NUCLEAR FUSION Nucl. Fusion 42 (2002) 6675 PII: S0029-5515(02)32320-2  

E-Print Network (OSTI)

INSTITUTE OF PHYSICS PUBLISHING and IAEA NUCLEAR FUSION Nucl. Fusion 42 (2002) 66­75 PII: S0029 require intense toroidal or poloidal torque input to maintain sufficiently high E?B/lin near the top

Hammett, Greg

333

Propagation of Cosmic Rays: Nuclear Physics in Cosmic-Ray Studies  

E-Print Network (OSTI)

-Planck-Institut für extraterrestrische Physik, Postfach 1603, D-85740 Garching, Germany Los Alamos National where the nuclear data and isotopic production cross sections in p- and -induced reactions are the key by the CR experiments to the fullest requires accurate nuclear cross sections. INTRODUCTION The origin of CR

Moskalenko, Igor V.

334

Nuclear Forces and Nuclear Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Forces and Nuclear Systems Forces and Nuclear Systems Our goal is to achieve a description of nuclear systems ranging in size from the deuteron to nuclear matter and neutron stars using a single parameterization of the nuclear forces. Our work includes both the construction of two- and three-nucleon potentials and the development of many-body techniques for computing nuclear properties with these interactions. Detailed quantitative, computationally intense studies are essential parts of this work. In the last decade we have constructed several realistic two- and three-nucleon potential models. The NN potential, Argonne v18, has a dominant charge-independent piece plus additional charge-dependent and charge-symmetry-breaking terms, including a complete electromagnetic interaction. It fits 4301 pp and np elastic scattering data with a chi**2

335

Physics  

NLE Websites -- All DOE Office Websites (Extended Search)

Physics Print Physics Print Because a large proportion of ALS experiments are "physics" experiments, it's useful to separate them into two categories - one focused on Materials/Condensed Matter, and this one, with a dual focus on AMO (atomic, molecular, and optical) physics and accelerator physics. Light sources such as the ALS have opened up research frontiers that may hold the answers to fundamental questions about structure and dynamics in AMO physics. The advanced spectroscopies that have been developed here provide the ability to control and probe atomic and molecular processes with unprecedented precision. In particular, the spectral resolution, brightness, broad tunability, and polarization control generate novel avenues for the study of tailored states, inner-shell processes, and nonperturbative electron interactions. Driven by the high brightness of the ALS, a whole new world of vacuum ultraviolet (VUV) and soft x-ray physics has emerged through the development of combined techniques to excite, select, and probe atoms, molecules, and clusters.

336

Vol. 18, No. 3, 2008, Nuclear Physics News 3 The views expressed here do not represent the views and policies of NuPECC except where explicitly identified.  

E-Print Network (OSTI)

editorial Vol. 18, No. 3, 2008, Nuclear Physics News 3 The views expressed here do not represent the views and policies of NuPECC except where explicitly identified. Editorial Advances in precision cosmol astonishing, has been the reinvention of nuclear theory. When I was a graduate student in the early 1980s

Washington at Seattle, University of - Department of Physics, Electroweak Interaction Research Group

337

PHYSICAL REVIEW B VOLUME 48, NUMBER 13 1 OCTOBER 1993-1 Determination of the absolute sign of nuclear quadrupole interactions by laser radio-frequency  

E-Print Network (OSTI)

PHYSICAL REVIEW B VOLUME 48, NUMBER 13 1 OCTOBER 1993-1 Determination of the absolute sign of nuclear quadrupole interactions by laser radio-frequency double-resonance experiments Tilo Blasberg the quadrupole moment of nuclear spins I > + with the electric-field-gradient (EFG) tensor leads to a splitting

Suter, Dieter

338

Nuclear Instruments and Methods in Physics Research A 568 (2006) 792798 A further study of the (CRLR) difference technique for retrospective  

E-Print Network (OSTI)

Nuclear Instruments and Methods in Physics Research A 568 (2006) 792­798 A further study of the (CR progeny; 210 Po; Implantation; Retrospective dosimetry 1. Introduction Methods for long-term passive radon measurements based on nuclear track detectors have been very well established and widely used. A survey

Yu, K.N.

339

High Energy Physics  

NLE Websites -- All DOE Office Websites (Extended Search)

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

340

Nuclear waste management using alpha particle physical phenomena by nanoscale investigations  

Science Journals Connector (OSTI)

Nuclear waste is investigated from the aspect of its nanoscale behaviour. Four materials are selected as the nuclear waste container. Using the irradiation-induced amorphisation, some characteristics are examined. The Displacement Per Atom (dpa) is affected by the ion dose using the Stopping and Range of Ions in Matter 2008 (SRIM 2008) code system, which is a computer package of molecular dynamic simulations. The dpa is changed completely and kinetic energy is transferred to the target by the nuclear collision. The length of the material is a function of the ion collisions. It is concluded that a thickness of 204 nm is the optimised length of a waste drum by crystalline silicotitanate.

Taeho Woo; Taewoo Kim

2011-01-01T23:59:59.000Z

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


341

TUNL Nuclear Data Project, HTML Project  

NLE Websites -- All DOE Office Websites (Extended Search)

A 6 References References for A 6: A 6 (Nuclear Physics A708 (2002)) A 6 (Nuclear Physics A490 (1988)) A 6 (Nuclear Physics A413 (1984)) A 6 (Nuclear Physics A320...

342

TUNL Nuclear Data Project, HTML Project  

NLE Websites -- All DOE Office Websites (Extended Search)

A 8 References References for A 8: A 8 (Nuclear Physics A745 (2004)) A 8 (Nuclear Physics A490 (1988)) A 8 (Nuclear Physics A413 (1984)) A 8 (Nuclear Physics A320...

343

TUNL Nuclear Data Project, HTML Project  

NLE Websites -- All DOE Office Websites (Extended Search)

A 9 References References for A 9: A 9 (Nuclear Physics A745 (2004)) A 9 (Nuclear Physics A490 (1988)) A 9 (Nuclear Physics A413 (1984)) A 9 (Nuclear Physics A320...

344

TUNL Nuclear Data Project, HTML Project  

NLE Websites -- All DOE Office Websites (Extended Search)

A 5 References References for A 5: A 5 (Nuclear Physics A708 (2002)) A 5 (Nuclear Physics A490 (1988)) A 5 (Nuclear Physics A413 (1984)) A 5 (Nuclear Physics A320...

345

TUNL Nuclear Data Project, HTML Project  

NLE Websites -- All DOE Office Websites (Extended Search)

A 7 References References for A 7: A 7 (Nuclear Physics A708 (2002)) A 7 (Nuclear Physics A490 (1988)) A 7 (Nuclear Physics A413 (1984)) A 7 (Nuclear Physics A320...

346

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

E-Print Network (OSTI)

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.

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

1996-09-23T23:59:59.000Z

347

Theoretical research in intermediate-energy nuclear physics. [Technical progress report, April 1, 1993--March 31, 1994  

SciTech Connect

This paper discusses progress that has been made on the following seven problems: (1) (e, e{prime}p) at high momentum transfer; (2) post,acceleration effects in two-nucleon interferometry of heavy-ion collisions; (3) pion-nucleus interactions above 0.5 GeV; (4) chiral symmetry breaking in nuclei and picnic atom anomaly; (5) atomic screening on nuclear astronomical reactions; (6) QCD related work (coherent pion production from skyrmion-antiskyrmion annihilation, QCD in 1 + 1 dimensions, and correlation functions in the QCD vacuum), and (7) kaonic hydrogen atom experiment. The problems deal with various topics mostly in intermediate-energy nuclear physics. We place priority on (1) and (2), and describe them somewhat in detail below. Other problems are our on-going projects, but we are placing lower priority on them in the second and third year.

Seki, R.

1994-09-01T23:59:59.000Z

348

New Science on the Horizon as Upgraded Particle Accelerator Meets...  

Office of Science (SC) Website

New Science on the Horizon as Upgraded Particle Accelerator Meets Commissioning Milestones Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP...

349

INSTITUTE OF PHYSICS PUBLISHING and INTERNATIONAL ATOMIC ENERGY AGENCY NUCLEAR FUSION Nucl. Fusion 46 (2006) 1723 doi:10.1088/0029-5515/46/1/002  

E-Print Network (OSTI)

INSTITUTE OF PHYSICS PUBLISHING and INTERNATIONAL ATOMIC ENERGY AGENCY NUCLEAR FUSION Nucl. Fusion of the flux at points on the plasma boundary, which are used as input to a shape control algorithm known physics, since realistic solutions to the plasma force balance can be used as inputs to feedback loops

Princeton Plasma Physics Laboratory

350

INSTITUTE OF PHYSICS PUBLISHING and INTERNATIONAL ATOMIC ENERGY AGENCY NUCLEAR FUSION Nucl. Fusion 45 (2005) 685693 doi:10.1088/0029-5515/45/7/018  

E-Print Network (OSTI)

INSTITUTE OF PHYSICS PUBLISHING and INTERNATIONAL ATOMIC ENERGY AGENCY NUCLEAR FUSION Nucl. Fusion 1 Associazione EURATOM-ENEA sulla Fusione, Centro Ricerche di Frascati, C.P. 65-00044 Frascati, Rome, Italy 2 Institute of Plasma Physics and Laser Microfusion, PO Box 49, PL-00-908, Warsaw, Poland Received

Vlad, Gregorio

351

WORKSHOP ON NUCLEAR DYNAMICS 17-21 MARCH 1980, GRANLIBAKKEN, TAHOE CITY, CALIFORNIA  

E-Print Network (OSTI)

program related to atomic physics nuclear physics elementary particle physics cosmic ray physics astrophysics biomedical research.

Authors, Various

2010-01-01T23:59:59.000Z

352

Benefits of Parallel I/O in Ab Initio Nuclear Physics Calculations, ICCS 2009 Proceedings  

SciTech Connect

Many modern scientific applications rely on highly parallel calculations, which scale to 10's of thousands processors. However, most applications do not concentrate on parallelizing input/output operations. In particular, sequential I/O has been identified as a bottleneck for the highly scalable MFDn (Many Fermion Dynamics for nuclear structure) code performing ab initio nuclear structure calculations. In this paper, we develop interfaces and parallel I/O procedures to use a well-known parallel I/O library in MFDn. As a result, we gain efficient input/output of large datasets along with their portability and ease of use in the downstream processing.

Laghave, Nikhil; Sosonkina, Masha; Maris, Pieter; Vary, James P.

2009-05-20T23:59:59.000Z

353

Budget projections 1990, 1991, and 1992 for research in high energy nuclear physics  

SciTech Connect

Research programs in experimental high energy physics are carried out at Harvard under the general supervision of a departmental faculty committee on high energy physics. The committee members are: G.W. Brandenburg, M. Franklin, S. Geer, R. J. Glauber, K. Kinoshita, F. M. Pipkin, R. F. Schwitters, K. Strauch, M. E. Law, and R. Wilson. Of these individuals, Professors R.J. Glauber, F.M. Pipkin, R.F.Schwitters, K. Strauch, and R. Wilson are the principal investigators with whom a number of junior faculty members and post-doctoral research fellows are associated. Dr. Brandenburg is the Director of the High Energy Physics Laboratory and administers the DOE high energy physics contract. Professor Schwitters is currently on leave of absence as Director of the Superconducting Super Collider project. In the fall of 1990 Professor G. Feldman, who is currently at SLAC, will join the Harvard faculty and become a principal investigator. Harvard is planning to make one or two additional senior faculty appointments in experimental high energy physics over the next two years. The principal goals of the work described here are to carry out forefront programs in high energy physics research and to provide first rate educational opportunities for students. The experimental program supported through HEPL is carried out at the major accelerator centers in the world and addresses some of the most important questions in high energy physics. Harvard`s educational efforts are concentrated in graduate education. These budget projections cover all of the Harvard based high energy physics experimental activities. The {open_quotes}umbrella{close_quotes} nature of this contract greatly simplifies support of essential central technical and computer services and helps the group to take advantage of new physics opportunities and to respond to unexpected needs. The funding for the operation of the HEPL facility is shared equally by the experimental groups.

Not Available

1990-05-01T23:59:59.000Z

354

Quantum Chromodynamics and nuclear physics at extreme energy density. Progress report, May 1992--April 1993  

SciTech Connect

This report discusses research in the following topics: Hadron structure physics; relativistic heavy ion collisions; finite- temperature QCD; real-time lattice gauge theory; and studies in quantum field theory.

Mueller, B.

1993-05-15T23:59:59.000Z

355

[Electroweak and other interactions in medium-energy nuclear physics]. Progress report  

SciTech Connect

This report discusses the following topics: spectrum generating algebra; vibrational spectra in the heavy quarkonia; chiral soliton model; pion neutral photoproduction from proton with polarized photons in the delta-1232 region; compton scattering in the delta- 1232 region; nucleon magnetic polarizability and the role of the delta resonance; eta photo- and electroproduction; perturbative QCD; and nuclear muon capture.

Mukhopadhyay, N.C.

1993-12-01T23:59:59.000Z

356

Physics of Ultra-Relativistic Nuclear Collisions with Heavy Beams at LHC Energy  

E-Print Network (OSTI)

We discuss current plans for experiments with ultra-relativistic nuclear collisions with heavy beams at LHC energy ($\\sqrt{s} = 5.5$ TeV/nucleon pair). Emphasis will be placed on processes which are unique to the LHC program. They include event-by-event interferometry, complete spectroscopy of the $\\Upsilon$ resonances, and open charm and open beauty measurements.

Peter Braun-Munzinger

1999-08-18T23:59:59.000Z

357

High-resolution coupled physics solvers for analysing fine-scale nuclear reactor design problems  

Science Journals Connector (OSTI)

...methodology and software interfaces of...often used in radiation hydrodynamics...reactor design and safety analyses. In...enable appropriate software interfaces...Ragusa. 2007 Software design of SHARP...nuclear reactor safety: multi-scale...methods for the radiation-diffusion equations...

2014-01-01T23:59:59.000Z

358

Research in heavy-ion nuclear physics. Annual progress report, May 1, 1991--April 30, 1992  

SciTech Connect

This report discusses the following topics: Fusion-fission in light nuclear systems; High-resolution Q-value measurement for the {sup 24}Mg+{sup 24}Mg reaction; Heavy-ion reactions and limits to fusion; and Hybrid MWPC-Bragg curve detector development.

Sanders, S.J.; Prosser, F.W.

1992-01-01T23:59:59.000Z

359

Intermediate/high energy nuclear physics. Technical progress report, June 15, 1991--June 14, 1992  

SciTech Connect

This report discusses progress on the following research: quark cluster model; solving quantum field theories in non-perturbative regime;relativistic wave equations, quarkonia and electron-positron resonances; nuclear dependence at large transverse momentum; factorization at the order of power corrections; single-spin asymmetries; and hadronic photon production. (LSP)

Vary, J.P.

1992-07-01T23:59:59.000Z

360

ELSEVIER Nuclear Physics A 657 (1999) 59-72 www.elsevier.nl/locate/npe  

E-Print Network (OSTI)

of excitation has been predicted since the introduction of collective models [ 1]. Examples of low-lying nuclear- fluence heavy-ion fusion reactions at energies near and below the Coulomb barrier [9], through the so stems from heavy-ion reactions at intermediate energy [ 15,16], pion-induced double charge exchange

Bertsch George F.

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


361

Nuclear Physics A 712 (2002) 3758 www.elsevier.com/locate/npe  

E-Print Network (OSTI)

consequences for low-energy reaction rates in nuclear astrophysics. One example is the reaction p + 7Be 8B to the nucleon drip lines. They are characterized by a very low separation energy of the valence nucleon (or can be expanded in powers of kR. All short-distance effects are systematically absorbed into a few low-energy

Bertulani, Carlos A. - Department of Physics and Astronomy, Texas A&M University

362

Budget projections 1988, 1989, and 1990 for research in high energy nuclear physics  

SciTech Connect

Research programs in experimental high energy physics are carried out at Harvard under the general supervision of a departmental faculty committee on high energy physics. Professor R.F. Schwitters is currently chairman of this committee. The committee members are: G.W. Brandenburg, S. Geer, R.J. Glauber, K. Kinoshita, R. Nickerson, F.M. Pipkin, J. Rohlf, C. Rubbia, R.F. Schwitters, M. Shapiro, K. Strauch, R. Vanelli, and R. Wilson. Of these individuals, Professors R.J. Glauber, F.M. Pipkin, C. Rubbia, R.F. Schwitters, K. Strauch, and R. Wilson are the principal investigators with whom a number of junior faculty members and post-doctoral research fellows are associated. Dr. Brandenburg (Associate Director, High Energy Physics Laboratory) administers the High Energy Physics Laboratory and is in charge of the Computer Facility. Professor Rubbia is currently on leave of absence and will leave Harvard on December 31, 1988 to become the Director General of CERN. A reduced UA1 effort will remain at Harvard after Professor Rubbia`s departure. Harvard is planning to make one or two senior faculty appointments in experimental high energy physics sometime in 1988-89. The principal goals of the work described here are to carry out forefront programs in high energy physics research and to provide first rate educational opportunities for students. The experimental program supported through HEPL is carried out at the major accelerator centers in the world and addresses some of the most important questions in high energy physics. Harvard`s educational efforts are concentrated in graduate education, where they are currently supporting 15 research students. In addition, undergraduate students work in projects at HEPL during the academic year and over summers. Many of these students have gone on to graduate school studying physics at Harvard and elsewhere.

Not Available

1988-04-01T23:59:59.000Z

363

Budget projections 1989, 1990, and 1991 for research in high energy nuclear physics  

SciTech Connect

Research programs in experimental high energy physics are carried out at Harvard under the general supervision of a departmental faculty committee on high energy physics. The committee members are: G.W. Brandenburg, S. Geer, R.J. Glauber, K. Kinoshita, R. Nickerson, F.M. Pipkin, R.F. Schwitters, M. Shapiro, K. Strauch, R. Vanelli, and R. Wilson. Of these individuals, Professors R.J. Glauber, F.M. Pipkin, R.F. Schwitters, K. Strauch, and R. Wilson are the principal investigators with whom a number of junior faculty members and post-doctoral research fellows are associated. Dr. Brandenburg is the Director of the High Energy Physics Laboratory and administers the DOE high energy physics contract. Professor Schwitters is currently on leave of absence as Director of the Superconducting Super Collider project. In the fall of 1990 Professor G. Feldman, who is currently at SLAC, will join the Harvard faculty and become a principal investigator. Harvard is planning to make one or two additional senior faculty appointments in experimental high energy physics over the next two years. The principal goals of the work described here are to carry out forefront programs in high energy physics research and to provide first rate educational opportunities for students. The experimental program supported through HEPL is carried out at the major accelerator centers in the world. Harvard`s educational efforts are concentrated in graduate education, where they are currently supporting 15 research students. These budget projections cover all of the Harvard based high energy physics experimental activities. The {open_quotes}umbrella{close_quotes} nature of this contract greatly simplifies support of essential central technical and computer services and helps the group to take advantage of new physics opportunities and to respond to unexpected needs. The funding for the operation of the HEPL facility is shared equally by the experimental groups.

Not Available

1989-05-01T23:59:59.000Z

364

Nuclear Data Links  

NLE Websites -- All DOE Office Websites (Extended Search)

Links to Useful Online Nuclear Physics Journals Important Online Resources Science Direct American Institute of Physics Journals APS Journals Online: Physical Review A, B, C, D, E,...

365

New quantum algorithm for studying NP-complete problems  

E-Print Network (OSTI)

Ordinary approach to quantum algorithm is based on quantum Turing machine or quantum circuits. It is known that this approach is not powerful enough to solve NP-complete problems. In this paper we study a new approach to quantum algorithm which is a combination of the ordinary quantum algorithm with a chaotic dynamical system. We consider the satisfiability problem as an example of NP-complete problems and argue that the problem, in principle, can be solved in polynomial time by using our new quantum algorithm.

Masanori Ohya; Igor V. Volovich

2004-06-29T23:59:59.000Z

366

EQUATION OF STATE AND NEUTRON STAR PROPERTIES CONSTRAINED BY NUCLEAR PHYSICS AND OBSERVATION  

SciTech Connect

Microscopic calculations of neutron matter based on nuclear interactions derived from chiral effective field theory, combined with the recent observation of a 1.97 {+-} 0.04 M{sub Sun} neutron star, constrain the equation of state of neutron-rich matter at sub- and supranuclear densities. We discuss in detail the allowed equations of state and the impact of our results on the structure of neutron stars, the crust-core transition density, and the nuclear symmetry energy. In particular, we show that the predicted range for neutron star radii is robust. For use in astrophysical simulations, we provide detailed numerical tables for a representative set of equations of state consistent with these constraints.

Hebeler, K. [Department of Physics, The Ohio State University, Columbus, OH 43210 (United States); Lattimer, J. M. [Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794-3800 (United States); Pethick, C. J. [The Niels Bohr International Academy, The Niels Bohr Institute, University of Copenhagen, Blegdamsvej 17, DK-2100 Copenhagen O (Denmark); Schwenk, A. [ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum fuer Schwerionenforschung GmbH, D-64291 Darmstadt (Germany)

2013-08-10T23:59:59.000Z

367

Research in heavy-ion nuclear physics. Annual progress report, May 1, 1992--April 30, 1993  

SciTech Connect

Attention was focused on the fission process in light nuclear systems. A model calculation based on the transition-state model of nuclear fission was applied to {sup 47}V fission as populated through multiple entrance channels and to fusion-fission cross sections for production of {sup 28}Al through three different entrance channels. Angular distributions are shown for different mass channels of the {sup 29}Si+{sup 27}Al reaction at E{sub lab} = 125 MeV. Pronounced structure is seen in the symmetric and near-symmetric fission channels from the {sup 24}Mg+{sup 24}Mg reaction; cross sections for binary fragment emission are shown for E{sub lab} = 90 MeV. A large Bragg-curve detector was used in this experiment. Ways to optimize detector response were studied; in addition, the Bragg detector was instrumented with an internal position-sensitive multiwire proportional counter.

Sanders, S.J.; Prosser, F.W.

1992-01-01T23:59:59.000Z

368

Lowx physics  

Science Journals Connector (OSTI)

...experiment led to the concept of the nuclear atom (Geiger & Marsden 1909...stronger y dependence at the cost of involving derivatives of r...collider physics. Cambridge Mono- graphs on Particle Physics, Nuclear Physics and Cosmology, vol...

2001-01-01T23:59:59.000Z

369

Physics  

NLE Websites -- All DOE Office Websites (Extended Search)

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

370

Nuclear Instruments and Methods in Physics Research A 358 (1995) 147-150 INSTRUMENTS  

E-Print Network (OSTI)

INSTRUMENTS 8 METHODS IN PHYSICS RESEARCH Sectlon A Green function analysis of a Raman FEL G. Shvets *, J, MA 02139, USA Abstract This paper derives, in closed form, the Green function of an FEL operating in the strongly Raman regime. This Green function allows for the calculation of the temporal and spatial evolution

Wurtele, Jonathan

371

FPGA-based Cherenkov Ring Recognition in Nuclear and Particle Physics Experiments  

E-Print Network (OSTI)

and particle physics experiments, for example HADES [2] and PANDA [3] at GSI Germany, BESIII [4] at IHEP China the exploded view of the HADES detector system as an example. The Cherenkov effect was discovered view of the HADES detector system (RICH detector for Cherenkov ring recognition) material with a speed

Jantsch, Axel

372

Summer Schools in Nuclear and Radiochemistry  

SciTech Connect

The ACS Summer Schools in Nuclear and Radiochemistry (herein called Summer Schools) were funded by the U.S. Department of Energy and held at San Jose State University (SJSU) and Brookhaven National Laboratory (BNL). The Summer Schools offer undergraduate students with U.S. citizenship an opportunity to complete coursework through ACS accredited chemistry degree programs at SJSU or the State University of New York at Stony Brook (SBU). The courses include lecture and laboratory work on the fundamentals and applications of nuclear and radiochemistry. The number of students participating at each site is limited to 12, and the low student-to-instructor ratio is needed due to the intense nature of the six-week program. To broaden the students perspectives on nuclear science, prominent research scientists active in nuclear and/or radiochemical research participate in a Guest Lecture Series. Symposia emphasizing environmental chemistry, nuclear medicine, and career opportunities are conducted as a part of the program. The Department of Energys Office of Basic Energy Sciences (BES) renewed the five-year proposal for the Summer Schools starting March 1, 2007, with contributions from Biological and Environmental Remediation (BER) and Nuclear Physics (NP). This Final Technical Report covers the Summer Schools held in the years 2007-2011.

Silber, Herbert B. [San Jose State University

2013-06-20T23:59:59.000Z

373

Register Allocation after Classical SSA Elimination is NP-complete  

E-Print Network (OSTI)

allocation is equivalent to graph coloring and hence NP-complete. Recently, Bouchez, Brisk, and Hack have notation introduced by Hack et al. [17]. Figure 1 (a) outlines the general representation of a -matrix by Hack et al. [17], the live ranges of temporaries in the same column of a -matrix overlap, while

Palsberg, Jens

374

An NP-movement Account of Tough Constructions  

E-Print Network (OSTI)

as an embedded object, is subsequently reanalyzed as the complement of a derived adjective, and finally undergoes NP-movement to subject position. It is shown that this analysis accounts for a wide range of data, including tough constructions exhibiting wh...

Reider, Michael

1996-01-01T23:59:59.000Z

375

Collaborating Organizations - Nuclear Data Program, Nuclear Engineering  

NLE Websites -- All DOE Office Websites (Extended Search)

Collaborating Organizations Collaborating Organizations Nuclear Data Program Overview Current Projects & Recent Activities Collaborating Organizations Publications Nuclear Data Measurements (NDM) Reports Experimental Nuclear Data Resources Contact ND Program Related Resources Other Major Programs Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE Division on Flickr Nuclear Data Program Collaborating Organizations Bookmark and Share National Nuclear Data Center, Brookhaven National Laboratory, Upton, New York. International Nuclear Structure and Decay Data Network, coordinated by IAEA, Vienna, Austria Heavy-Ion Nuclear Physics Group, Physics Division, Argonne National Laboratory, Argonne, Illinois. Nuclear Spectroscopy Group, Department of Nuclear Physics,

376

Perimeter radiation monitors for the control and physical security of special nuclear materials  

SciTech Connect

Perimeter radiation monitors are gamma-ray and neutron measurement systems that can provide timely notice of theft or diversion of special nuclear material (SNM). The monitors may be hand-held instruments operated by security inspectors or automatic pedestrian or vehicle monitors located in exit pathways. A monitor's performance depends on its design, the characteristics of SNM and the operating environment, and proper monitor calibration and maintenance. Goals of ASTM Subcommittee C26.12 are to describe monitoring technology, how to apply it, and how to test its performance. 3 refs., 6 figs.

Fehlau, P.E.

1990-01-01T23:59:59.000Z

377

Progress in development of silica aerogel for particle- and nuclear-physics experiments at J-PARC  

E-Print Network (OSTI)

This study presents the advancement in hydrophobic silica aerogel development for use as Cherenkov radiators and muonium production targets. These devices are scheduled for use in several particle- and nuclear-physics experiments that are planned in the near future at the Japan Proton Accelerator Research Complex. Our conventional method to produce aerogel tiles with an intermediate index of refraction of approximately 1.05 is extended so that we can now produce aerogel tiles with lower indices of refraction (i.e., 1.03-1.04) and higher indices of refraction (i.e., 1.075-1.08); each with excellent transparency. A new production method, called pin drying, was optimized to produce larger area aerogels consistently with an ultrahigh index of refraction (>1.10). In addition, for use as a thermal-muonium-emitting material at room temperature, dedicated low-density aerogels were fabricated using the conventional method.

Makoto Tabata; Hideyuki Kawai

2014-10-09T23:59:59.000Z

378

Validation of nuclear design method by measured data obtained in the physics test at a small fast reactor  

SciTech Connect

The present paper discusses applicability of the measured data of Joyo cores from a view point of integral validation for the 4S nuclear design methodology. Through the evaluation of isothermal reactivity coefficients and reactivity losses due to burnup, the results confirm that those MK-I and MK-II database are effective in order to increase the dataset for uncertainty estimation for the prediction. Discussions on the 4S design method validation are also done through the analyses of criticality, power distributions and reactivity loss due to burn-up. The C/E values for criticality and reaction rate distributions are confirmed to be consistent with those obtained from the physics benchmark experiments. Through an analysis of burnup coefficient of the MK-I core by the detailed Monte Carlo calculations, the C/E value is 1.1, which is close to 1.06 obtained by the deterministic transport analysis. (authors)

Nagata, A.; Tsuboi, Y. [Advanced Energy Design and Engineering Dep., Toshiba Corporation, 8 Shinsugita-cho, Isogo-ku, Yokohama, 235-8523 (Japan); Moriki, Y. [Power and Industrial Systems Research and Development Center, Toshiba Corporation, 8 Shinsugita-cho, Isogo-ku, Yokohama, 235-8523 (Japan); Kawashima, M. [Nuclear Technology Application Dept., Toshiba Nuclear Engineering Services Corporation, 8 Shinsugita-cho, Isogo-ku, Yokohama, 235-8523 (Japan)

2012-07-01T23:59:59.000Z

379

Progress in development of silica aerogel for particle- and nuclear-physics experiments at J-PARC  

E-Print Network (OSTI)

This study presents the advancement in hydrophobic silica aerogel development for use as Cherenkov radiators and muonium production targets. These devices are scheduled for use in several particle- and nuclear-physics experiments that are planned in the near future at the Japan Proton Accelerator Research Complex. Our conventional method to produce aerogel tiles with an intermediate index of refraction of approximately 1.05 is extended so that we can now produce aerogel tiles with lower indices of refraction (i.e., 1.03-1.04) and higher indices of refraction (i.e., 1.075-1.08); each with excellent transparency. A new production method, called pin drying, was optimized to produce larger area aerogels consistently with an ultrahigh index of refraction (>1.10). In addition, for use as a thermal-muonium-emitting material at room temperature, dedicated low-density aerogels were fabricated using the conventional method.

Tabata, Makoto

2014-01-01T23:59:59.000Z

380

Processing experimental data and analysis of simulation codes from Nuclear Physics using distributed and parallel computing  

E-Print Network (OSTI)

In this thesis we tried to show the impact of new technologies on scientific work in the large field of heavy ion physics and as a case study, we present the implementation of the event plane method, on a highly parallel technology: the graphic processor. By the end of the thesis, a comparison of the analysis results with the elliptic flow published by ALICE is made. In Chapter 1 we presented the computing needs at the heavy ion physics experiment ALICE and showed the current state of software and technologies. The new technologies available for some time, Chapter 2, present new performance capabilities and generated a trend in preparing for the new wave of technologies and software, which most indicators show will dominate the future. This was not disregarded by the scientific community and in consequence section 2.2 shows the rising interest in the new technologies by the High Energy Physics community. A real case study was needed to better understand how the new technologies can be applied in HEP and aniso...

Niculescu, Mihai; Hristov, Peter

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


381

B {yields} {pi}K puzzle: Solutions in the Standard Model and in New Physics  

SciTech Connect

The present B {yields} {pi}K data is studied in the context of the standard model (SM) and with new physics (NP). We confirm that the SM has difficulties explaining the B {yields} {pi}K measurements. By adopting an effective-lagrangian parametrization of NP effects, we are able to rule out several classes of NP. Our model-independent analysis shows that the B {yields} {pi}K data can be accommodated by NP in the electroweak penguin sector.

Baek, Seungwon; Hamel, Philippe; London, David [Physique des Particules, Universite de Montreal, C.P. 6128, succ. centre-ville, Montreal, QC, H3C 3J7 (Canada); Datta, Alakabha [Department of Physics, University of Toronto, 60 St. George Street, Toronto, ON, M5S 1A7 (Canada); Suprun, Denis A. [Physics Department, Brookhaven National Laboratory, Upton, NY, 11973 (United States)

2005-12-02T23:59:59.000Z

382

PROCEEDINGS OF THE RIKEN BNL RESEARCH CENTER WORKSHOP ON LARGE SCALE COMPUTATIONS IN NUCLEAR PHYSICS USING THE QCDOC, SEPTEMBER 26 - 28, 2002.  

SciTech Connect

The massively parallel computer QCDOC (QCD On a Chip) of the RIKEN BNL Research Center (RI3RC) will provide ten-teraflop peak performance for lattice gauge calculations. Lattice groups from both Columbia University and RBRC, along with assistance from IBM, jointly handled the design of the QCDOC. RIKEN has provided $5 million in funding to complete the machine in 2003. Some fraction of this computer (perhaps as much as 10%) might be made available for large-scale computations in areas of theoretical nuclear physics other than lattice gauge theory. The purpose of this workshop was to investigate the feasibility and possibility of using a supercomputer such as the QCDOC for lattice, general nuclear theory, and other calculations. The lattice applications to nuclear physics that can be investigated with the QCDOC are varied: for example, the light hadron spectrum, finite temperature QCD, and kaon ({Delta}I = 1/2 and CP violation), and nucleon (the structure of the proton) matrix elements, to name a few. There are also other topics in theoretical nuclear physics that are currently limited by computer resources. Among these are ab initio calculations of nuclear structure for light nuclei (e.g. up to {approx}A = 8 nuclei), nuclear shell model calculations, nuclear hydrodynamics, heavy ion cascade and other transport calculations for RHIC, and nuclear astrophysics topics such as exploding supernovae. The physics topics were quite varied, ranging from simulations of stellar collapse by Douglas Swesty to detailed shell model calculations by David Dean, Takaharu Otsuka, and Noritaka Shimizu. Going outside traditional nuclear physics, James Davenport discussed molecular dynamics simulations and Shailesh Chandrasekharan presented a class of algorithms for simulating a wide variety of femionic problems. Four speakers addressed various aspects of theory and computational modeling for relativistic heavy ion reactions at RHIC. Scott Pratt and Steffen Bass gave general overviews of how qualitatively different types of physical processes evolve temporally in heavy ion reactions. Denes Molnar concentrated on the application of hydrodynamics, and Alex Krasnitz on a classical Yang-Mills field theory for the initial phase. We were pleasantly surprised by the excellence of the talks and the substantial interest from all parties. The diversity of the audience forced the speakers to give their talks at an understandable level, which was highly appreciated. One particular bonus of the discussions could be the application of highly developed three-dimensional astrophysics hydrodynamics codes to heavy ion reactions.

AOKI,Y.; BALTZ,A.; CREUTZ,M.; GYULASSY,M.; OHTA,S.

2002-09-26T23:59:59.000Z

383

Theoretical nuclear physics. Progress report, October 1, 1991--August 1, 1992  

SciTech Connect

This report discusses the following topics: Exact 1-loop vacuum polarization effects in 1 + 1 dimensional QHD; exact 1-fermion loop contributions in 1 + 1 dimensional solitons; exact scalar 1-loop contributions in 1 + 3 dimensions; exact vacuum calculations in a hyper-spherical basis; relativistic nuclear matter with self- consistent correlation energy; consistent RHA-RPA for finite nuclei; transverse response functions in the {triangle}-resonance region; hadronic matter in a nontopological soliton model; scalar and vector contributions to {bar p}p {yields} {bar {Lambda} {Lambda}} reaction; 0+ and 2+ strengths in pion double-charge exchange to double giant-dipole resonances; and nucleons in a hybrid sigma model including a quantized pion field.

Rost, E.; Shephard, J.R.

1992-08-01T23:59:59.000Z

384

Physics-based multiscale coupling for full core nuclear reactor simulation  

Science Journals Connector (OSTI)

Abstract Numerical simulation of nuclear reactors is a key technology in the quest for improvements in efficiency, safety, and reliability of both existing and future reactor designs. Historically, simulation of an entire reactor was accomplished by linking together multiple existing codes that each simulated a subset of the relevant multiphysics phenomena. Recent advances in the MOOSE (Multiphysics Object Oriented Simulation Environment) framework have enabled a new approach: multiple domain-specific applications, all built on the same software framework, are efficiently linked to create a cohesive application. This is accomplished with a flexible coupling capability that allows for a variety of different data exchanges to occur simultaneously on high performance parallel computational hardware. Examples based on the KAIST-3A benchmark core, as well as a simplified Westinghouse AP-1000 configuration, demonstrate the power of this new framework for tacklingin a coupled, multiscale mannercrucial reactor phenomena such as CRUD-induced power shift and fuel shuffle.

Derek R. Gaston; Cody J. Permann; John W. Peterson; Andrew E. Slaughter; David Andr; Yaqi Wang; Michael P. Short; Danielle M. Perez; Michael R. Tonks; Javier Ortensi; Ling Zou; Richard C. Martineau

2014-01-01T23:59:59.000Z

385

FINAL TECHNICAL REPORT FOR UNIVERSITY OF ARIZONA GRANT: RESEARCH IN THEORETICAL NUCLEAR AND NEUTRINO PHYSICS  

SciTech Connect

The main focus of the research supported by the nuclear theory grant DE-FG02-04ER41319 was on studying parton dynamics in high-energy heavy ion collisions, perturbative approach to charm production and its contribution to atmospheric neutrinos, application of AdS/CFT approach to QCD, neutrino signals of dark mattter annihilation in the Sun and on novel processes that take place in dense stellar medium and their role in stellar collapse, in particular the effect of new neutrino interactions on neutrino flavor conversion in Supernovae. In this document we present final technical report on projects completed under the DOE Grant DE-FG02-04ER41319.

SARCEVIC, INA

2014-06-14T23:59:59.000Z

386

24052_NP_ESnet_Cover_150_v3  

NLE Websites -- All DOE Office Websites (Extended Search)

Network Requirements Network Requirements Report of the Nuclear Physics Network Requirements Workshop Conducted August 25 and 26, 2011 ESnet Energy Sciences Network 2 DISCLAIMER This document was prepared as an account of work sponsored by the United States Government. While this document is believed to contain correct information, neither the United States Government nor any agency thereof, nor The Regents of the University of California, nor any of their employees, makes any warranty, express or implied, or assumes any legal responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by its trade

387

INSTITUTE OF PHYSICS PUBLISHING and INTERNATIONAL ATOMIC ENERGY AGENCY NUCLEAR FUSION Nucl. Fusion 44 (2004) S254S265 PII: S0029-5515(04)88685-X  

E-Print Network (OSTI)

INSTITUTE OF PHYSICS PUBLISHING and INTERNATIONAL ATOMIC ENERGY AGENCY NUCLEAR FUSION Nucl. Fusion is a target that has been compressed and heated to fusion conditions by the energy input of the driver been compressed and heated to fusion conditions by the energy input of the driver beams. A target

Tillack, Mark

388

Nuclear Instruments and Methods in Physics Research A 517 (2004) 180188 Spectral identification of thin-film-coated and solid-form  

E-Print Network (OSTI)

Nuclear Instruments and Methods in Physics Research A 517 (2004) 180­188 Spectral identification or solid-form bulk detectors. There have been many attempts to fabricate boron-based solid-form detectors as solid- form bulk detectors. Hence, a method to distinguish between the two devices is necessary

Shultis, J. Kenneth

389

INSTITUTE OF PHYSICS PUBLISHING and INTERNATIONAL ATOMIC ENERGY AGENCY NUCLEAR FUSION Nucl. Fusion 43 (2003) 982988 PII: S0029-5515(03)66862-6  

E-Print Network (OSTI)

. For the out-shifted, shaped plasma, ripple loss of high energy ions during neutral beam injection (NBIINSTITUTE OF PHYSICS PUBLISHING and INTERNATIONAL ATOMIC ENERGY AGENCY NUCLEAR FUSION Nucl. Fusion is analysed. PACS numbers: 52.55.Fa, 52.55.Wq, 52.25.Fi 1. Introduction The construction of HL-2A [1

Budny, Robert

390

J. H. Scofield and D. M. Fleetwood, IEEE Transactions on Nuclear Science NS-38, 1567-77 (December 1991). PHYSICAL BASIS FOR NONDESTRUCTIVE TESTS OF MOS RADIATION HARDNESS*  

E-Print Network (OSTI)

J. H. Scofield and D. M. Fleetwood, IEEE Transactions on Nuclear Science NS-38, 1567-77 (December 1991). PHYSICAL BASIS FOR NONDESTRUCTIVE TESTS OF MOS RADIATION HARDNESS* John H. Scofield Department noise and channel mobility measurements may be useful in defining nondestructive hardness assurance test

Scofield, John H.

391

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

SciTech Connect

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

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

2000-10-15T23:59:59.000Z

392

Lab Scale Production of NpO2  

SciTech Connect

The Savannah River Site (SRS) plans to disposition its legacy H-Canyon neptunium to Oak Ridge National Laboratory after converting it to oxide in HB-Line. Neptunium oxide, (NpO{sub 2}) was produced at the Savannah River Technology Center using the anticipated HB-Line flowsheet conditions. The oxide was produced from a neptunium nitrate solution via anion exchange, oxalate precipitation, and calcination at either 600 C or 650 C. The 98 grams of NpO{sub 2} produced in the laboratory should be representative of material produced in HB-Line and is to be used for gas generation testing to support radioactive material transportation safety analysis as part of the neptunium stabilization and disposition program at SRS. Results of each step of the oxide production will be presented.

Duffey, J

2003-08-29T23:59:59.000Z

393

NP-compltude de EDIT(Nested, Nested)  

E-Print Network (OSTI)

NP-complétude de EDIT(Nested, Nested) G.Blin, G. Fertin, I. Rusu, C. Sinoquet Institut de Recherche problème ouvert proposé par Zhang et al en 2001 #12;EDIT(Nested, Nested) ? Distance d'édition entre deux séquences annotées par des arcs. Plain Nested Crossing Unlimited ACGUCCGUGCAUAUUAA CGUCGGAUCUAGCUAUC {(op1

Blin, Guillaume

394

MHK Technologies/Neptune Proteus NP1000 | Open Energy Information  

Open Energy Info (EERE)

Neptune Proteus NP1000 Neptune Proteus NP1000 < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Neptune Proteus NP1000.jpg Technology Profile Primary Organization Neptune Renewable Energy Ltd Project(s) where this technology is utilized *MHK Projects/Neptune Renewable Energy 1 10 Scale Prototype Pilot Test *MHK Projects/Humber St Andrews Technology Resource Click here Current/Tidal Technology Type Click here Cross Flow Turbine Technology Readiness Level Click here TRL 5/6: System Integration and Technology Laboratory Demonstration Technology Description The Neptune Proteus Tidal Power Pontoon consists of a 6m x 6m vertical axis crossflow turbine mounted within a patented, symmetrical diffuser duct and beneath a very simple steel deck and buoyancy packages. The Neptune Proteus is designed for estuarine sites, which can exhibit powerful currents yet have lower access, cabling and maintenance costs than offshore environments. The vertical shaft connects to the gearbox and generator/alternator, located on the top of the pontoon with associated valves and electrical processing and control machinery. The power pontoon is easily moored in the free stream, thus minimizing environmental impact and operates just as efficiently in both flood and ebb currents. The rotor is maintained at optimal power outputs by sets of computer-controlled shutters within the duct. Theoretical work on 1/10th, 1/40th and 1/100th scale laboratory experiments suggest an overall efficiency of greater than 45%.

395

Net Power Technology NP Holdings or NPH | Open Energy Information  

Open Energy Info (EERE)

Net Power Technology NP Holdings or NPH Net Power Technology NP Holdings or NPH Jump to: navigation, search Name Net Power Technology (NP Holdings or NPH) Place Chanchun, Jilin Province, China Sector Efficiency, Renewable Energy Product China-based company, focused on electricity storage systems based on zinc-bromide redox flow cells for renewable energy and energy efficiency applications. Coordinates 40.911701°, 45.354198° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.911701,"lon":45.354198,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

396

Michael L. Corradini Nuclear Engineering & Engineering Physics -Birthdate -8/6/52, US Citizen 1500 Engineering Drive, Madison WI -Phone: 608-263-1648 -Email: Corradini@engr.wisc.edu  

E-Print Network (OSTI)

Michael L. Corradini ­ Nuclear Engineering & Engineering Physics - Birthdate - 8/6/52, US Citizen Distinguished Professor, Nuclear Engineering, University of Wisconsin-Madison EDUCATION B.S. - 1975 - Mechanical Engineering Marquette University, Milwaukee WI M.S. - 1976 - Nuclear Engineering Massachusetts Institute

Volpe, Francesco

397

Effect of aging on the solubility and crystallinity of Np(IV) hydrous oxide  

SciTech Connect

Neptunium(IV) hydrous oxide (NpO/sub 2/ x xH/sub 2/O) was aged in aqueous suspensions with pH values ranging from 4 to 12. Initially amorphous NpO/sub 2/ x xH/sub 2/O developed strong X-ray diffraction peaks within one month that corresponded to crystalline NpO/sub 2/. The oxidation state analyses of the 1.8 nm filtered solutions showed the Np to be primarily present as Np(V). The solubility of NpO/sub 2/ x xH/sub 2/O in suspensions at pH values < 8.5 followed the NpO/sub 2/ x xH/sub 2/O in equilibrium NpO/sub 2//sup +/ + e/sup -/ + xH/sub 2/O reaction with an apparent log K/sup 0/ (after 200 days) of -10 +/- 1. The results of the aqueous suspensions with pH values > 8.5 were complicated by the partial conversion of the NpO/sub 2/ x xH/sub 2/O to an amorphous, oxidized Np solid, and possibly by Np aqueous speciation other than NpO/sub 2/OH/sup 0/. 13 references, 4 figures, 3 tables.

Strickert, R.G.; Rai, D.; Fulton, R.W.

1984-01-01T23:59:59.000Z

398

Medium energy nuclear physics research. Progress report, June 1, 1991--May 31, 1992  

SciTech Connect

This paper covers the following topics: Experiment 87-02: Threshold Electrodisintegration of the Deuteron at High Q{sup 2}; Measurement of the 5th Structure Function in Deuterium and {sup 12}C; Single-Particle Densities of sd-Shell Nuclei; Experiment 84-28: Transverse Form Factors of {sup 117}Sn; Experiment 82-11: Elastic Magnetic Electron Scattering from {sup 13}C; Experiment 89-09: Measurement of the Elastic Magnetic Form Factor of {sup 3}He at High Momentum Transfer; Experiment 89-15: Coincidence Measurement of the D(e,e{prime}p) Cross-Section at Low Excitation Energy and High Momentum Transfer; Experiment 87-09: Measurement of the Quadrupole Contribution to the N {yields} {Delta} Excitation; Experiment E-140: Measurement of the x-, Q{sup 2} and A-Dependence of R = {sigma}{sub L}/{sigma}{sub T}; PEP Beam-Gas Event Analysis: Physics with the SLAC TPC/2{gamma} Detector; Drift Chamber Tests at Brookhaven National Laboratory; Experiment PR-89-031: Multi-nucleon Knockout Using the CLAS Detector; Electronics Design for the CLAS Region 1 Drift Chamber; Color Transparencies in the Electroproduction of Nucleon Resonances; and Experiment PR-89-015: Study of Coincidence Reactions in the Dip and Delta-Resonance Regions.

Peterson, G.A.; Dubach, J.F.; Hicks, R.S.; Miskimen, R.A.

1992-06-01T23:59:59.000Z

399

DOCTORAL PROGRAMME MATHEMATICS AND PHYSICS, Subprogramme PHYSICS,  

E-Print Network (OSTI)

of safety analysis and development of safety culture. Selected chapters on nuclear and reactor physics doc Safety Administration, Agency for Radioactive Waste Management and other organisations in the nuclear area. The nuclear Engineering module treats nuclear technology, operation, nuclear safety, reactor

?umer, Slobodan

400

ORISE: Health physics services  

NLE Websites -- All DOE Office Websites (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...

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


401

Carl A. Gagliardi PHYSICS  

NLE Websites -- All DOE Office Websites (Extended Search)

Physical Society Joseph B. Natowitz CHEMISTRY Heavy-ion reaction dynamics and thermodynamics - ACS Award in Nuclear Chemistry - Fellow, American Physical Society Ralf Rapp...

402

Faculty Position Therapeutic Medical Physics  

E-Print Network (OSTI)

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

403

Nuclear Science & Technology  

NLE Websites -- All DOE Office Websites (Extended Search)

Nuclear Science & Technology Nuclear Science & Technology Nuclear Science & Technology1354608000000Nuclear Science & TechnologySome of these resources are LANL-only and will require Remote Access. /No/ Nuclear Science & Technology Some of these resources are LANL-only and will require Remote Access. Key Resources Databases Organizations Journals Key Resources International Atomic Energy Agency IAEA scientific and technical publications cover areas of nuclear power, radiation therapy, nuclear security, nuclear law, and emergency repose. Search under Publications/Books and Reports for scientific books, standards, technical guides and reports National Nuclear Data Center Nuclear physics data for basic nuclear research and for applied nuclear technologies, operated by Brookhaven.

404

Nuclear Data Links  

NLE Websites -- All DOE Office Websites (Extended Search)

Links to Other Useful Sites Online Journals Institutions and Programs Related to Nuclear Physics U.S. Nuclear Data Program: All evaluated nuclear data supported by the U.S....

405

E-Print Network 3.0 - astronomy nuclear transition Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

Nuclear Physics and Nuclear Engineering Summary: EPSRCSTFC Review of Nuclear Physics and Nuclear Engineering A report prepared for EPSRC and STFC... of the scope of RCUK funded...

406

Physical features of small disperse coal dust fraction transportation and structurization processes in iodine air filters of absorption type in ventilation systems at nuclear power plants  

E-Print Network (OSTI)

The research on the physical features of transportation and structurization processes by the air-dust aerosol in the granular filtering medium with the cylindrical coal adsorbent granules in an air filter of the adsorption type in the heating ventilation and cooling (HVAC) system at the nuclear power plant is completed. The physical origins of the coal dust masses distribution along the absorber with the granular filtering medium with the cylindrical coal granules during the air-dust aerosol intake process in the near the surface layer of absorber are researched. The quantitative technical characteristics of air filtering elements, which have to be considered during the optimization of air filters designs for the application in the ventilation systems at the nuclear power plants, are obtained.

Ledenyov, Oleg P; Poltinin, P Ya; Fedorova, L I

2012-01-01T23:59:59.000Z

407

Covariant Spectator Theory of np scattering: Isoscalar interaction currents  

SciTech Connect

Using the Covariant Spectator Theory (CST), one boson exchange (OBE) models have been found that give precision fits to low energy $np$ scattering and the deuteron binding energy. The boson-nucleon vertices used in these models contain a momentum dependence that requires a new class of interaction currents for use with electromagnetic interactions. Current conservation requires that these new interaction currents satisfy a two-body Ward-Takahashi (WT), and using principals of {\\it simplicity\\/} and {\\it picture independence\\/}, these currents can be uniquely determined. The results lead to general formulae for a two-body current that can be expressed in terms of relativistic $np$ wave functions, ${\\it \\Psi}$, and two convenient truncated wave functions, ${\\it \\Psi}^{(2)}$ and $\\widehat {\\it \\Psi}$, which contain all of the information needed for the explicit evaluation of the contributions from the interaction current. These three wave functions can be calculated from the CST bound or scattering state equations (and their off-shell extrapolations). A companion paper uses this formalism to evaluate the deuteron magnetic moment.

Gross, Franz L. [JLAB

2014-06-01T23:59:59.000Z

408

Reconversion of nuclear weapons  

E-Print Network (OSTI)

The nuclear predicament or nuclear option. Synopsis of three lectures : 1- The physical basis of nuclear technology. Physics of fission. Chain reaction in reactors and weapons. Fission fragments. Separration of isotopes. Radiochemistry.2- Nuclear reactors with slow and fast neutrons. Power, size, fuel and waste. Plutonium production. Dose rate, shielding and health hazard. The lessons of Chernobyl3- Nuclear weapons. Types, energy, blast and fallout. Fusion and hydrogen bombs. What to do with nuclear weapons when you cannot use them? Testing. Nonmilittary use. Can we get rid of the nuclear weapon? Nuclear proliferation. Is there a nuclear future?

Kapitza, Sergei P

1993-01-01T23:59:59.000Z

409

Research in nuclear physics  

SciTech Connect

This report discusses the following topics: electron capture decay of {sup 179}Ta; search for 17-keV neutrinos in the Internal Bremsstrahlung Spectrum of {sup 125}I; and {beta}{sup +} decay and cosmic-ray half-life of {sup 91}Nb.

Kozub, R.L.; Hindi, M.M.

1992-06-01T23:59:59.000Z

410

Nuclear Astrophysics  

E-Print Network (OSTI)

Nuclear physics has a long and productive history of application to astrophysics which continues today. Advances in the accuracy and breadth of astrophysical data and theory drive the need for better experimental and theoretical understanding of the underlying nuclear physics. This paper will review some of the scenarios where nuclear physics plays an important role, including Big Bang Nucleosynthesis, neutrino production by our sun, nucleosynthesis in novae, the creation of elements heavier than iron, and neutron stars. Big-bang nucleosynthesis is concerned with the formation of elements with A nuclear physics inputs required are few-nucleon reaction cross sections. The nucleosynthesis of heavier elements involves a variety of proton-, alpha-, neutron-, and photon-induced reactions, coupled with radioactive decay. The advent of radioactive ion beam facilities has opened an important new avenue for studying these processes, as many involve radioactive species. Nuclear physics also plays an important role in neutron stars: both the nuclear equation of state and cooling processes involving neutrino emission play a very important role. Recent developments and also the interplay between nuclear physics and astrophysics will be highlighted.

Carl R. Brune

2005-02-28T23:59:59.000Z

411

Safety Criticality Standards Using the French CRISTAL Code Package: Application to the AREVA NP UO{sub 2} Fuel Fabrication Plant  

SciTech Connect

Criticality safety evaluations implement requirements to proof of sufficient sub critical margins outside of the reactor environment for example in fuel fabrication plants. Basic criticality data (i.e., criticality standards) are used in the determination of sub critical margins for all processes involving plutonium or enriched uranium. There are several criticality international standards, e.g., ARH-600, which is one the US nuclear industry relies on. The French Nuclear Safety Authority (DGSNR and its advising body IRSN) has requested AREVA NP to review the criticality standards used for the evaluation of its Low Enriched Uranium fuel fabrication plants with CRISTAL V0, the recently updated French criticality evaluation package. Criticality safety is a concern for every phase of the fabrication process including UF{sub 6} cylinder storage, UF{sub 6}-UO{sub 2} conversion, powder storage, pelletizing, rod loading, assembly fabrication, and assembly transportation. Until 2003, the accepted criticality standards were based on the French CEA work performed in the late seventies with the APOLLO1 cell/assembly computer code. APOLLO1 is a spectral code, used for evaluating the basic characteristics of fuel assemblies for reactor physics applications, which has been enhanced to perform criticality safety calculations. Throughout the years, CRISTAL, starting with APOLLO1 and MORET 3 (a 3D Monte Carlo code), has been improved to account for the growth of its qualification database and for increasing user requirements. Today, CRISTAL V0 is an up-to-date computational tool incorporating a modern basic microscopic cross section set based on JEF2.2 and the comprehensive APOLLO2 and MORET 4 codes. APOLLO2 is well suited for criticality standards calculations as it includes a sophisticated self shielding approach, a P{sub ij} flux determination, and a 1D transport (S{sub n}) process. CRISTAL V0 is the result of more than five years of development work focusing on theoretical approaches and the implementation of user-friendly graphical interfaces. Due to its comprehensive physical simulation and thanks to its broad qualification database with more than a thousand benchmark/calculation comparisons, CRISTAL V0 provides outstanding and reliable accuracy for criticality evaluations for configurations covering the entire fuel cycle (i.e. from enrichment, pellet/assembly fabrication, transportation, to fuel reprocessing). After a brief description of the calculation scheme and the physics algorithms used in this code package, results for the various fissile media encountered in a UO{sub 2} fuel fabrication plant will be detailed and discussed. (authors)

Doucet, M.; Durant Terrasson, L.; Mouton, J. [AREVA-NP (France)

2006-07-01T23:59:59.000Z

412

IDAHO STATE UNIVERSITY Chad Pope Department of Nuclear Engineering...  

NLE Websites -- All DOE Office Websites (Extended Search)

of nuclear safety, nuclear criticality safety, nuclear facility operations and pyroprocessing. He teaches courses in reactor physics, nuclear criticality safety, Monte Carlo...

413

Physical features of accumulation and distribution processes of small disperse coal dust precipitations and absorbed radioactive chemical elements in iodine air filter at nuclear power plant  

E-Print Network (OSTI)

The physical features of absorption process of radioactive chemical elements and their isotopes in the iodine air filters of the type of AU-1500 at the nuclear power plants are researched. It is shown that the non-homogenous spatial distribution of absorbed radioactive chemical elements and their isotopes in the iodine air filter, probed by the gamma-activation analysis method, is well correlated with the spatial distribution of small disperse coal dust precipitations in the iodine air filter. This circumstance points out to an important role by the small disperse coal dust fractions of absorber in the absorption process of radioactive chemical elements and their isotopes in the iodine air filter. The physical origins of characteristic interaction between the radioactive chemical elements and the accumulated small disperse coal dust precipitations in an iodine air filter are considered. The analysis of influence by the researched physical processes on the technical characteristics and functionality of iodine ...

Ledenyov, Oleg P; Poltinin, P Ya; Fedorova, L I

2012-01-01T23:59:59.000Z

414

The Decline and Death of Nuclear Power  

E-Print Network (OSTI)

2012). NRC: Nuclear Security and Safeguards.nrc.gov.in nuclear reactor maintenance and security. However, when aof nuclear power plants, as well as physical security to

Melville, Jonathan

2013-01-01T23:59:59.000Z

415

NP Early Career Opportunities | U.S. DOE Office of Science (SC...  

Office of Science (SC) Website

these programs and information for potential applicants are described in detail on their web sites. In the tables below we provide information regarding previous NP awardees under...

416

Physical Protection  

Directives, Delegations, and Requirements

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

2009-07-23T23:59:59.000Z

417

Reactor Physics Parametric and Depletion Studies in Support of TRISO Particle Fuel Specification for the Next Generation Nuclear Plant  

SciTech Connect

Reactor physics calculations were initiated to answer several major questions related to the proposed TRISO-coated particle fuel that is to be used in the prismatic Very High Temperature Reactor (VHTR) or the Next Generation Nuclear Plant (NGNP). These preliminary design evaluation calculations help ensure that the upcoming fuel irradiation tests will test appropriate size and type of fuel particles for a future NGNP reactor design. Conclusions from these calculations are expected to confirm and suggest possible modifications to the current particle fuel parameters specified in the evolving Fuel Specification. Calculated results dispel the need for a binary fuel particle system, which is proposed in the General Atomics GT-MHR concept. The GT-MHR binary system is composed of both a fissile and fertile particle with 350- and 500- micron kernel diameters, respectively. For the NGNP reactor, a single fissile particle system (single UCO kernel size) can meet the reactivity and power cycle length requirements demanded of the NGNP. At the same time, it will provide substantial programmatic cost savings by eliminating the need for dual particle fabrication process lines and dual fuel particle irradiation tests required of a binary system. Use of a larger 425-micron kernel diameter single fissile particle (proposed here), as opposed to the 350-micron GT-MHR fissile particle size, helps alleviate current compact particle packing fractions fabrication limitations (<35%), improves fuel block loading for higher n-batch reload options, and tracks the historical correlation between particle size and enrichment (10 and 14 wt% U-235 particle enrichments are proposed for the NGNP). Overall, the use of the slightly larger kernel significantly broadens the NGNP reactor core design envelope and provides increased design margin to accommodate the (as yet) unknown final NGNP reactor design. Maximum power-peaking factors are calculated for both the initial and equilibrium NGNP cores. Radial power-peaking can be fully controlled with particle packing fraction zoning (no enrichment zoning required) and discrete burnable poison rods. Optimally loaded NGNP cores can expect radial powerpeaking factors as low as 1.14 at beginning of cycle (BOC), increasing slowly to a value of 1.25 by end of cycle (EOC), an axial power-peaking value of 1.30 (BOC), and for individual fuel particles in the maximum compact <1.05 (BOC) and an approximate value of 1.20 (EOC) due to Pu-239 buildup in particles on the compact periphery. The NGNP peak particle powers, using a conservative total power-peaking factor (~2.1 factor), are expected to be <150 mW/particle (well below the 250 mW/particle limit, even with the larger 425-micron kernel size).

James W. Sterbentz; Bren Phillips; Robert L. Sant; Gray S. Chang; Paul D. Bayless

2003-09-01T23:59:59.000Z

418

Physics Division: Subatomic Physics Group  

NLE Websites -- All DOE Office Websites (Extended Search)

Subatomic Physics Subatomic Physics Physics home » Subatomic Physics Site Home About Us Groups Applied Modern Physics, P-21 Neutron Science and Technology, P-23 Plasma Physics, P-24 Subatomic Physics, P-25 CONTACTS Group Leader Jon Kapustinsky (Acting) Deputy Group Leader Andy Saunders Office Administration Irene Martinez Miquela Sanchez Group Office (505) 667-6941 Physics Links Jobs in Physics Human Resources Working at Los Alamos Los Alamos resources Who we are, what we do We conduct basic research in nuclear and particle physics, applying this expertise to solve problems of national importance. By pushing the limits of our understanding of the smallest building blocks of matter through diverse experiments probing aspects of subatomic reactions, we aim to provide a more thorough understanding of the basic

419

Rapid Time to Results and High Sensitivity of the CarbaNP Test on Early Cultures  

Science Journals Connector (OSTI)

...Results and High Sensitivity of the CarbaNP Test on Early Cultures Lai-yang Lee a Tony...rapid results, we adapted the CarbaNP test by using 5-hour-old cultures; the...Utilizing younger cultures allows the test to be incorporated into a single day's...

Lai-yang Lee; Tony M. Korman; Maryza Graham

2014-08-20T23:59:59.000Z

420

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

E-Print Network (OSTI)

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

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


421

INSTITUTE OF PHYSICS PUBLISHING JOURNAL OF PHYSICS G: NUCLEAR AND PARTICLE PHYSICS J. Phys. G: Nucl. Part. Phys. 29 (2003) 769775 PII: S0954-3899(03)58133-6  

E-Print Network (OSTI)

distributions of the fragments, knock-out and stripping reactions, Coulomb excitation, etc. Rare nuclear experiments. Correlation experiments with low-energy proton­proton 0954-3899/03/040769+07$30.00 © 2003 IOP. The same happens in nuclear interactions in peripheral collisions, when little energy is transferred

Bertulani, Carlos A. - Department of Physics and Astronomy, Texas A&M University

422

STABILITY CONSTANTS OF NP(V) COMPLEXES WITH FLOURIDE AND SULFATE AT VARIABLE TEMPERATURES  

SciTech Connect

A solvent extraction method was used to determine the stability constants of Np(V) complexes with fluoride and sulfate in 1.0 M NaClO{sub 4} from 25 C to 60 C. The distribution ratio of Np(V) between the organic and aqueous phases was found to decrease as the concentrations of fluoride and sulfate were increased. Stability constants of the 1:1 Np(V)-fluoride complexes and the 1:1 Np(V)-sulfate and 1:2 Np(V)-sulfate complexes, dominant in the aqueous phase under the experimental conditions, were calculated from the effect of [F{sup -}] and [SO{sub 4}{sup 2-}] on the distribution ratio. The enthalpy and entropy of complexation were calculated from the stability constants at different temperatures by using the Van't Hoff equation.

Y. Xia; J.I. Friese; D.A. Moore; L. Rao

2005-07-11T23:59:59.000Z

423

Proceedings of the workshop on nuclear and particle physics at energies up to 31 GeV: new and future aspects  

SciTech Connect

This report contains the proceedings of the LAMPF Workshop on Nuclear and Particle Physics at Energies up to 31 GeV, New and Future Aspects, held in Los Alamos, January 5 to 8, 1981. Included are invited talks and contributed papers covering recent developments in (a) weak and unified interactions (including discussions of neutrino oscillations), (b) the hadronic description of strong interactions, (c) the quark description of strong interactions, (d) hypernuclei, and (e) new facilities and proposed experiments. One of the motivations for the Workshop was to explore physics justifications for a future high-intensity proton accelerator in this energy regime. Separate abstracts were prepared for papers from this meeting. Six papers were previously included in the data base.

Bowman, J.D.; Kisslinger, L.S.; Silbar, R.R. (eds.)

1981-03-01T23:59:59.000Z

424

Standard guide for application of radiation monitors to the control and physical security of special nuclear material  

E-Print Network (OSTI)

1.1 This guide briefly describes the state-of-the-art of radiation monitors for detecting special nuclear material (SNM) (see 3.1.11) in order to establish the context in which to write performance standards for the monitors. This guide extracts information from technical documentation to provide information for selecting, calibrating, testing, and operating such radiation monitors when they are used for the control and protection of SNM. This guide offers an unobtrusive means of searching pedestrians, packages, and motor vehicles for concealed SNM as one part of a nuclear material control or security plan for nuclear materials. The radiation monitors can provide an efficient, sensitive, and reliable means of detecting the theft of small quantities of SNM while maintaining a low likelihood of nuisance alarms. 1.2 Dependable operation of SNM radiation monitors rests on selecting appropriate monitors for the task, operating them in a hospitable environment, and conducting an effective program to test, calibrat...

American Society for Testing and Materials. Philadelphia

1999-01-01T23:59:59.000Z

425

Nuclear Instruments and Methods in Physics Research A 505 (2003) 633644 The HERMES polarized atomic beam source  

E-Print Network (OSTI)

of Physics and Astronomy, Vrije Universiteit, NL-1081 HV Amsterdam, The Netherlands i DESY Zeuthen, 15738 substates and of the deuterium intensity of up to 5:8 ? 1016 atoms=s in three hyperfine substates

426

Triangle Universities Nuclear Laboratory : 2011  

NLE Websites -- All DOE Office Websites (Extended Search)

Tenure-Track Position in Experimental Nuclear Physics The Department of Physics at NC State University is seeking qualified applicants for a tenure-track position in experimental...

427

Electronic structure and x-ray photoelectron spectroscopy of the ?, ?, and ? phases of Np  

Science Journals Connector (OSTI)

The electronic structure, density of states, and x-ray photoelectron spectroscopy (XPS) intensities of the ?, ?, and ? phases of Np have been theoretically determined from self-consistent, fully relativistic, linear muffin-tin-orbital band-structure calculations. The calculated XPS intensities show a large f peak that narrows (due to the larger volumes per atom) and moves closer to the Fermi energy as one progresses through the ?, ?, and ? phases. Experimental XPS intensities of the ? and ? phases are also presented and compared to the theoretical calculations. Experimentally, the ? and ? intensities are found to be almost identical, and do not show any evidence for the theoretically predicted f-band narrowing. In addition, there is a large additional experimental intensity at higher binding energy that is not present in the calculations. This extra intensity may be evidence for quasilocalized behavior of the 5f electronic states that is induced by the XPS process. For example, the low-energy tail may be related to either multiplet or satellite structure due to final-state localized atomiclike correlation effects. 1996 The American Physical Society.

R. C. Albers; A. M. Boring; J. M. Wills; L. E. Cox; O. E. Eriksson; N. E. Christensen

1996-11-15T23:59:59.000Z

428

Physics | More Science | ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

Physics Physics ORNL Physics More Science Home | Science & Discovery | More Science | Physics SHARE Physics Bottom view of the 25 million volt tandem electrostatic accelerator of the Holifield Heavy Ion Research Facility. Physics researchers at ORNL seek to answer fascinating questions about our Universe: What are the nuclear reactions that drive stellar explosions? How does nuclear matter organize itself? What are the properties of nuclear interactions? Why is there more matter than antimatter in the universe? Is the neutrino its own antiparticle? What are the properties of matter that existed just after the Big Bang? Our research staff address these questions by developing experimental techniques and detector systems, performing experiments at national and

429

The Discovery of Nuclear Waste  

Science Journals Connector (OSTI)

When did man discover nuclear waste? To answer this question, we first have to ask if nuclear waste really is something that could be called ... Prize in physics. In early writings within nuclear energy research ...

Gran Sundqvist

2002-01-01T23:59:59.000Z

430

Differential Cross-Section for N-P Elastic-Scattering in the Angular Range 60-Degrees Less-than Theta-Star Less-than 180-Degrees at 801.9 Mev  

E-Print Network (OSTI)

PHYSICAL REVIEW C VOLUME 30, NUMBER 2 AUGUST 1984 Differential cross section for n-p elastic scattering in the angular range 60' & 8' & 180' at 801.9 Mev Mahavir Jain, M. L. Evans, G. Glass, J. C. Hiebert, R. A. Kenefick, and L. C. Northcliffe.... Dieterle, C. P. Leavitt, and D. M. Wolfe University ofNew Mexico, Albuquerque, New Mexico 87131 D. W. %"erren~ University of Geneva, Geneva, Switzerland (Received 17 April 1984) The differential cross section for n-p elastic scattering at 801.9 MeV has...

Jain, M.; Evans, M. L.; Glass, G.; Hiebert, John C.; Kenefick, R. A.; Northcliffe, L. C.; Bonner, BE; Simmons, J. E.; Bjork, C. W.; Riley, P. J.; Bryant, H. C.; Cassapakis, C. G.; Dieterle, B.; Leavitt, C. P.; Wolfe, D. M.; Werren, D. W.

1984-01-01T23:59:59.000Z

431

Optical Absorption, Stability and Structure of NpO2+ Complexeswith Dicarboxylic Acids  

SciTech Connect

Complexation of NpO2+ with oxalic acid (OX),2,2'-oxydiacetic acid (ODA), 2,2'-iminodiacetic acid (IDA) and 2,2'-thiodiacetic acid (TDA), has been studied using spectrophotometry in1 M NaClO4. Both the position and the intensity of the absorption band of NpO2+ at 980 nm are affected by the formation of NpO2+/dicarboxylate complexes, providing useful information on the complexation strength, the coordination mode and the structure of the complexes.

Guoxin Tian; Linfeng Rao

2006-01-04T23:59:59.000Z

432

Zero-Crossing Angle in the Np Analyzing Power at Medium Energies and its Relation to Charge Symmetry  

E-Print Network (OSTI)

energy dependence of the zero-crossing angle for free np analyzing power based on the energy dependent phase shift solution, WI80, of Amdt and VerWest. ' It is seen that the measured 80(np) values agree well with those for 80(np) for each...

Bhatia, T. S.; Glass, G.; Hiebert, John C.; Northcliffe, L. C.; Tippens, W. B.; Bonner, BE; Simmons, J. E.; Hollas, C. L.; Newsom, C. R.; Riley, P. J.; Ransome, R. D.

1981-01-01T23:59:59.000Z

433

Sixth coordination meeting of the Division of Nuclear Physics Program to meet high-priority nuclear data needs of the Office of Fusion Energy  

SciTech Connect

The Sixth Coordination Meeting of the Program to Meet Nuclear Data Needs for Fusion Energy was held in Athens, September 19--21, 1989. The principal change from the previous meeting at Argonne was the larger international participation. One scientist from Japan represented the only non-US participation at Argonne. The present meeting included about 20% non-US participants. This change is a welcome one since the data needs are international and the limited availability of manpower and facilities will likely make international cooperation increasingly important in the future. The organization of the meeting involved collecting and distributing to all participants progress reports from the Department of Energy laboratories in advance of the meeting. Twenty-five oral presentations were made at the meeting, including many from non-DOE labs. The meeting then divided into experimental and theoretical task force groups, which carried out assigned agenda items. The reports of these groups, abstracts of the talks presented at the meeting, and the progress reports are included in this report. The topics discussed will be very familiar to participants in past meetings, but continued progress in most areas was reported. One discussion topic which reflects continuing and perhaps worsening problems was the aging of facilities and personnel, coupled with a lack of programs to renew.

Not Available

1990-06-01T23:59:59.000Z

434

Nuclear Science Advisory Committee (NSAC) Homepage | U.S. DOE Office of  

Office of Science (SC) Website

NSAC Home NSAC Home Nuclear Science Advisory Committee (NSAC) NSAC Home Meetings Members Charges/Reports Charter .pdf file (629KB) NP Committees of Visitors NP Home The Frontiers of Nuclear Science .pdf file (11.7MB) Nuclear Science Advisory Committee's December 2007 Long Range Plan.Read More .pdf file (11.7MB) The Frontiers of Nuclear Science 1 of 2 Print Text Size: A A A RSS Feeds FeedbackShare Page Additional Information Contact NSAC: Email: sc.np@science.doe.gov Phone: 301-903-3613 NSAC DFO: Dr. Timothy J. Hallman Committee Manager: Mrs. Brenda May Committee Chair: Dr. Donald Geesaman Associate Director - NP: Dr. Timothy J. Hallman NSAC is an advisory committee that provides official advice to the Department of Energy (DOE) and the National Science Foundation (NSF) External link

435

342 Nuclear Instruments and Methods in Physics Research B58 (1991) 342-346 North-Holland  

E-Print Network (OSTI)

of the Mn-based, ternary Heusler alloy PtMnSb 112,131, which is a very promising material for normal to investigate physical prop- erties of surfaces, in particular, the electronic, magnetic and chemical properties- and short-ranged surface magnetic order in ferro- magnetic samples. In addition, grazing-angle particle

Rau, Carl

436

arXiv:submit/0451583[physics.gen-ph]8Apr2012 Including Nuclear Degrees of Freedom in a Lattice  

E-Print Network (OSTI)

of condensed matter physics. In the Fleischmann­Pons excess heat effect [4, 5], a great deal of energy Institute of Technology, Cambridge, MA 02139, USA E-mail: plh@mit.edu 2 Department of Computer Science and Engineering, University of Engineering and Technology. Lahore, Pakistan Abstract. Motivated by many

Williams, Brian C.

437

Nuclear Instruments and Methods in Physics Research A 559 (2006) 352354 Further developments in the CUORICINO experiment  

E-Print Network (OSTI)

on neutrinoless Double Beta Decay (DBD) of 130 Te consisting of an array of 62 TeO2 crystals with a total active discovery in the field of particle physics. The discovery of the neutrinoless Double Beta Decay (0n- DBD

438

6 Nuclear Fuel Designs  

NLE Websites -- All DOE Office Websites (Extended Search)

Message from the Director Message from the Director 2 Nuclear Power & Researrh Reactors 3 Discovery of Promethium 4 Nuclear Isotopes 4 Nuclear Medicine 5 Nuclear Fuel Processes & Software 6 Nuclear Fuel Designs 6 Nuclear Safety 7 Nuclear Desalination 7 Nuclear Nonproliferation 8 Neutron Scattering 9 Semiconductors & Superconductors 10 lon-Implanted Joints 10 Environmental Impact Analyses 11 Environmental Quality 12 Space Exploration 12 Graphite & Carbon Products 13 Advanced Materials: Alloys 14 Advanced Materials: Ceramics 15 Biological Systems 16 Biological Systems 17 Computational Biology 18 Biomedical Technologies 19 Intelligent Machines 20 Health Physics & Radiation Dosimetry 21 Radiation Shielding 21 Information Centers 22 Energy Efficiency: Cooling & Heating

439

Radiochemical determination of 237Np in soil samples contaminated with weapon grade plutonium  

Science Journals Connector (OSTI)

The Palomares terrestrial ecosystem (Spain) constitutes a natural laboratory to study transuranics. This scenario is partially contaminated with weapon-grade plutonium since the burnout and fragmentation...237Np ...

M. P. Antn; A. Espinosa; A. Aragn

2006-12-01T23:59:59.000Z

440

Radiochemical determination of 237NP in soil samples contaminated with weapon grade plutonium  

Science Journals Connector (OSTI)

The Palomares terrestrial ecosystem (Spain) constitutes a natural laboratory to study transuranics. This scenario is partially contaminated with weapon-grade plutonium since the burnout and fragmentation...237Np ...

M. P. Antn; A. Espinosa; A. Aragn

2006-01-01T23:59:59.000Z

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


441

Effect of Ebola virus proteins GP, NP and VP35 on VP40 VLP morphology  

Science Journals Connector (OSTI)

Recently we described a role for Ebola virus proteins, NP, GP, and VP35 in enhancement of VP40 VLP budding. To explore the possibility that VLP structure was altered by co-expression of EBOV proteins leading t...

Reed F Johnson; Peter Bell; Ronald N Harty

2006-05-01T23:59:59.000Z

442

Delayed neutron measurements for Th-232, Np-237, Pu-239, Pu-241 and depleted uranium.  

E-Print Network (OSTI)

??The neutron emission rates from five very pure actinide samples (Th-232, Np-237, Pu-239, Pu-241 and depleted uranium) were measured following equilibrium irradiation in fast and (more)

Stone, Joseph C.

2012-01-01T23:59:59.000Z

443

Delayed neutron measurements for Th-232, Np-237, Pu-239, Pu-241 and depleted uranium  

E-Print Network (OSTI)

The neutron emission rates from five very pure actinide samples (Th-232, Np-237, Pu-239, Pu-241 and depleted uranium) were measured following equilibrium irradiation in fast and thermal neutron fluxes. The relative abundances (alphas) for the first...

Stone, Joseph C.

2012-06-07T23:59:59.000Z

444

Differential cross section measurement for the d(n,np) reaction  

E-Print Network (OSTI)

The differential cross section for the quasielastic d(n,np) neutron-induced deuteron breakup reaction was measured as a function of incident and scattered particle energies and angles, using a liquid deuterium target at ...

Uemura, Sho

2010-01-01T23:59:59.000Z

445

Microsoft Word - ICEM05_Np_Sorption_paper.doc  

NLE Websites -- All DOE Office Websites (Extended Search)

5 5 SORPTION OF LONG-LIVED RADIONUCLIDES FROM GEOLOGIC REPOSITORY UNDERGROUND WATERS BY URANIUM OXIDES T.V.Kazakovskaya RFNC-VNIIEF,Russia, V.I. Shapovalov, RFNC-VNIIEF, Russia E.V. Zakharova IPC RAS, Russia S.N.Kalmykov, IPC RAS, Russia M.J.Haire, ORNL, USA 2 Copyright © 2005 by AS ABSTRACT Uranium dioxide (UO 2 ) from unburned nuclear fuel is present in large quantities in spent nuclear fuel geologic repositories. Furthermore, depleted uranium dioxide (DUO 2 ) can be used as a component of the geologic repository waste package as an absorbent for migrating radionuclides.. A potentially important use of DU oxides is to provide an additional engineered chemical barrier in the Yucca Mountain repository. If the DU oxides can be shown to substantially inhibit transport of important actinide elements and fission

446

Single and double pion production in np collisions at 1.25 GeV with HADES  

E-Print Network (OSTI)

The preliminary results on charged pion production in np collisions at an incident beam energy of 1.25 GeV measured with HADES are presented. The np reactions were isolated in dp collisions at 1.25 GeV/u using the Forward Wall hodoscope, which allowed to register spectator protons. The results for np -> pppi-, np -> nppi+pi- and np -> dpi+pi- channels are compared with OPE calculations. A reasonable agreement between experimental results and the predictions of the OPE+OBE model is observed.

The HADES Collaboration; A. K. Kurilkin; G. Agakishiev; A. Balanda; D. Belver; A. Belyaev; A. Blanco; M. Bhmer; J. L. Boyard; P. Cabanelas; E. Castro; S. Chernenko; J. D\\'\\iaz; A. Dybczak; E. Epple; L. Fabbietti; O. Fateev; P. Finocchiaro; P. Fonte; J. Friese; I. Frhlich; T. Galatyuk; J. A. Garzn; A. Gil; M. Golubeva; D. Gonzlez-D\\'\\iaz; F. Guber; T. Hennino; R. Holzmann; P. Huck; A. Ierusalimov; I. Iori; A. Ivashkin; M. Jurkovic; B. Kmpfer; T. Karavicheva; I. Koenig; W. Koenig; B. W. Kolb; A. Kopp; G. Korcyl; GK. Kornakov; R. Kotte; A. Kozuch; A. Krsa; F. Krizek; R. Krcken; H. Kuc; W. Khn; A. Kugler; A. Kurepin; P. Kurilkin; P. Khlitz; V. Ladygin; J. Lamas-Valverde; S. Lang; K. Lapidus; T. Liu; L. Lopes; M. Lorenz; L. Maier; A. Mangiarotti; J. Markert; V. Metag; B. Michalska; J. Michel; C. Mntz; L. Naumann; Y. C. Pachmayer; M. Palka; Y. Parpottas; V. Pechenov; O. Pechenova; J. Pietraszko; W. Przygoda; B. Ramstein; A. Reshetin; J. Roskoss; A. Rustamov; A. Sadovsky; P. Salabura; A. Schmah; J. Siebenson; Yu. G. Sobolev; S. Spataro; H. Strbele; J. Stroth; C. Sturm; M. Sudol; A. Tarantola; K. Teilab; P. Tlusty; M. Traxler; R. Trebacz; H. Tsertos; T. Vasiliev; V. Wagner; M. Weber; J. Wstenfeld; S. Yurevich; Y. Zanevsky

2011-02-11T23:59:59.000Z

447

Single and double pion production in np collisions at 1.25 GeV with HADES  

E-Print Network (OSTI)

The preliminary results on charged pion production in np collisions at an incident beam energy of 1.25 GeV measured with HADES are presented. The np reactions were isolated in dp collisions at 1.25 GeV/u using the Forward Wall hodoscope, which allowed to register spectator protons. The results for np -> pppi-, np -> nppi+pi- and np -> dpi+pi- channels are compared with OPE calculations. A reasonable agreement between experimental results and the predictions of the OPE+OBE model is observed.

Kurilkin, A K; Balanda, A; Belver, D; Belyaev, A; Blanco, A; Bhmer, M; Boyard, J L; Cabanelas, P; Castro, E; Chernenko, S; D\\'\\iaz, J; Dybczak, A; Epple, E; Fabbietti, L; Fateev, O; Finocchiaro, P; Fonte, P; Friese, J; Frhlich, I; Galatyuk, T; Garzn, J A; Gil, A; Golubeva, M; Gonzlez-D\\'\\iaz, D; Guber, F; Hennino, T; Holzmann, R; Huck, P; Ierusalimov, A; Iori, I; Ivashkin, A; Jurkovic, M; Kmpfer, B; Karavicheva, T; Koenig, I; Koenig, W; Kolb, B W; Kopp, A; Korcyl, G; Kornakov, GK; Kotte, R; Kozuch, A; Krsa, A; Krizek, F; Krcken, R; Kuc, H; Khn, W; Kugler, A; Kurepin, A; Kurilkin, P; Khlitz, P; Ladygin, V; Lamas-Valverde, J; Lang, S; Lapidus, K; Liu, T; Lopes, L; Lorenz, M; Maier, L; Mangiarotti, A; Markert, J; Metag, V; Michalska, B; Michel, J; Mntz, C; Naumann, L; Pachmayer, Y C; Palka, M; Parpottas, Y; Pechenov, V; Pechenova, O; Pietraszko, J; Przygoda, W; Ramstein, B; Reshetin, A; Roskoss, J; Rustamov, A; Sadovsky, A; Salabura, P; Schmah, A; Siebenson, J; Sobolev, Yu G; Spataro, S; Strbele, H; Stroth, J; Sturm, C; Sudol, M; Tarantola, A; Teilab, K; Tlusty, P; Traxler, M; Trebacz, R; Tsertos, H; Vasiliev, T; Wagner, V; Weber, M; Wstenfeld, J; Yurevich, S; Zanevsky, Y

2011-01-01T23:59:59.000Z

448

LMFBR operation in the nuclear cycle without fuel reprocessing  

SciTech Connect

Substantiation is given to expediency of investigation of nuclear power (NP) development with fast reactors cooled by lead-bismuth alloy operating during extended time in the open nuclear fuel cycle with slightly enriched or depleted uranium make-up. 9 refs., 1 fig., 6 tabs.

Toshinsky, S.I. [Institute of Physics and Power Engineering, Kaluga (Russian Federation)

1997-12-01T23:59:59.000Z

449

Nuclear War  

SciTech Connect

Several chapters in Last Aid warrant the attention of the medical profession. What is known and not known about acute biologic effects following a nuclear explosion is described. The social, physical, and environmental impact of nuclear war on urban population centers is described. How nuclear weapons could affect the composition of the ozone layer and the effects this could have on human survival, including possible interruption of the aquatic ecosystem to produce single-cell organisms for the food cycle, especially seafood is noted.

MacLeod, G.K.

1983-01-01T23:59:59.000Z

450

Improving Targeted Radionuclide Therapy Using Nuclear Nanotechnology  

E-Print Network (OSTI)

.4 Radioactive Nanoparticle Structural Integrity ......................................... 22 2.5 Nuclear Probability Theory: Radioactive Nuclei per Nanoparticle ........ 23 2.6 Nanoparticle-Antibody Directional Conjugation...NPs ........................................ 64 3.10 AuNP Endocytosis .................................................................................. 75 4. DERIVATION OF TRT DOSIMETRY USING PROBABILITY THEORY .... 77 4.1 Tumor Dosimetry Derivation of Endocytosed Nano...

Evans, Jordan Andrew

2013-05-03T23:59:59.000Z

451

NUCLEAR CHEMISTRY DIV. ANNUAL REPORT 1980-81  

E-Print Network (OSTI)

Polarization Phenomena in Nuclear Physics-1980, AIP Conf.Barrett and D.F. Jackson, Nuclear Sizes and Structure, (K Production in Relativistic Nuclear Collisions A. Shor, K.

Cerny, J.

2010-01-01T23:59:59.000Z

452

SC e-journals, Physics  

Office of Scientific and Technical Information (OSTI)

Physics Physics ACS Nano Acta Materialia Adsorption Advanced Composite Materials Advances in Condensed Matter Physics - OAJ Advances in Acoustics and Vibration - OAJ Advances in High Energy Physics - OAJ Advances in Materials Science and Engineering - OAJ Advances in Mathematical Physics - OAJ Advances in Optical Technologies - OAJ Advances in Optics and Photonics Advances in Tribology - OAJ American Journal of Physics, The Annalen der Physik Annales Henri Poincare Annals of Global Analysis and Geometry Annals of Nuclear Energy Annals of Physics Annual Review of Biophysics Annual Review of Fluid Mechanics Annual Review of Nuclear and Particle Science Annual Review of Physical Chemistry Applied Optics Applied Physics A Applied Physics Letters Applied Psychophysiology and Biofeedback

453

Physics Handbook  

Science Journals Connector (OSTI)

... mechanics, acoustics, optics, heat, electricity, magnetism and electro-magnetism, atomic and nuclear physics, and strength of materials, 120 to 128. Decimal numbers denote the sections and ... they should be recommended to use it with care and only in conjunction with other handbooks and encyclopaedias. The trouble is that too much has been attempted-a dictionary, ...

S. WEINTROUB

1968-10-19T23:59:59.000Z

454

Program Overview Shane Johnson Office of Nuclear Energy, Science and Technology  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Program Overview Program Overview Shane Johnson Office of Nuclear Energy, Science and Technology April 15, 2002 Presentation to the Nuclear Energy Research Advisory Committee Office of Nuclear Energy, Science and Technology Johnson/April15_02 NP 2010 to NERAC.ppt 2 Nuclear Power 2010 Overview Nuclear Power 2010 Overview Goals 6 Orders for one or more new nuclear plants by 2005 6 Operation of new nuclear power plants by 2010 6 New program initiative unveiled February 2002 6 Based on Near-Term Deployment Roadmap 6 Public/private partnership to: ! Develop advanced reactor technologies ! Explore sites that could host new nuclear power plants ! Demonstrate new Nuclear Regulatory Commission (NRC) regulatory processes Office of Nuclear Energy, Science and Technology Johnson/April15_02 NP 2010 to NERAC.ppt 3

455

International Conference on Mathematics, Computational Methods & Reactor Physics (M&C 2009) Saratoga Springs, New York, May 3-7, 2009, on CD-ROM, American Nuclear Society, LaGrange Park, IL (2009)  

E-Print Network (OSTI)

International Conference on Mathematics, Computational Methods & Reactor Physics (M&C 2009 reactor core simulation system aims to meet this need. As a convenient trade- off between accuracy operator such as EDF, the time required to compute nuclear reactor core simulations is rather critical

Vialle, Stéphane

456

Np Behavior in Synthesized Uranyl Phases: Results of Initial Tests  

SciTech Connect

Initial tests were completed at Pacific Northwest National Laboratory for developing a potential mechanism to retard the mobility of neptunium at the Yucca Mountain repository. Neptunium is of concern because of its mobility in the environment and long half life, contributing a large percentage of the potential dose over extended times at the perimeter of the site. The mobility of neptunium could be retarded by associating with uranium mineral phases. The following four uranium mineral phases were examined and are potential secondary phases expected to form as a result of interactions of spent nuclear fuel with the local environment: meta-schoepite, studtite, uranophane, and sodium boltwoodite. The fate of the neptunium was examined in these synthetic experiments.

Friese, Judah I.; Douglas, Matthew; McNamara, Bruce K.; Clark, Sue B.; Hanson, Brady D.

2004-09-28T23:59:59.000Z

457

Lowx physics  

Science Journals Connector (OSTI)

...experiment led to the concept of the nuclear atom (Geiger & Marsden 1909...for the experiments and the accelerator inherent in reducing either...the quantum numbers of the vacuum, Phil. Trans. R. Soc...graphs on Particle Physics, Nuclear Physics and Cosmology, vol...

2001-01-01T23:59:59.000Z

458

NTIME and the classes NP. Slides modified by Benny Chor, based on original slides by Maurice Herlihy, Brown University. p.1  

E-Print Network (OSTI)

Lecture 12 NTIME and the classes NP. Slides modified by Benny Chor, based on original slides in NP. Slides modified by Benny Chor, based on original slides by Maurice Herlihy, Brown University. ­ p.1 #12;Lecture 12 NTIME and the classes NP. Examples of Problems in NP. Verifiability. Slides

Beimel, Amos

459

Reduction of Np(VI) and Pu(VI) by organic chelating agents  

SciTech Connect

The reduction of NpO{sub 2}{sup 2+} and PuO{sub 2}{sup 2+} by oxalate, citrate, and ethylenediaminetetraacetic acid (EDTA) was investigated in low ionic strength media and brines. This was done to help establish the stability of the An(VI) oxidation state depended on the pH nd relative strength of the various oxidation state-specific complexes. At low ionic strength and pH 6, NpO{sub 2}{sup 2+} was rapidly reduced to form NpO{sub 2}{sup +} organic complexes. At longer times, Np(IV) organic complexes were observed in the presence of citrate. PuO{sub 2}{sup 2+} was predominantly reduced to Pu{sup 4+}, resulting in the formation of organic complexes or polymeric/hydrolytic precipitates. The relative rates of reduction to the An(V) complex were EDTA > citrate > oxalate. Subsequent reduction to An(IV) complexes, however, occurred in the following order: citrate > EDTA > oxalate because of the stability of the An(VI)-EDTA complex. The presence of organic complexants led to the rapid reduction of NpO{sub 2}{sup 2+} and PuO{sub 2}{sup 2+} in G-Seep brine at pHs 5 and 7. At pHs 8 and 10 in ERDA-6 brine, carbonate and hydrolytic complexes predominated and slowed down or prevented the reduction of An(VI) by the organics present.

Reed, D.T.; Wygmans, D.G.; Aase, S.B.; Banaszak, J.E. [Argonne National Lab., IL (United States)

1998-06-01T23:59:59.000Z

460

Gamow-Teller strength in Na23(n,p) and a comparison to Na23(?-,?)  

Science Journals Connector (OSTI)

We report measurements of the Na23(n,p) differential cross section at an incident energy of 198 MeV and angles from 0 to 24 using the TRIUMF Charge Exchange Facility. From these data we determine Gamow-Teller (GT) transition probabilities to low lying 1/2+, 3/2+, and 5/2+ Ne23 states and the GT+ strength distribution up to 25 MeV excitation energy. The values of BGT+ to discrete states, and the GT+ strength below 10 MeV, are found to be in reasonable agreement with a full 1s-0d shell model calculation with a normalization factor of about 0.74. The GT+ strength above 10 MeV suggests the removal of strength from lower to higher excitation energies. We also compare the Na23(n,p) data with Na23(?-,?) data and find agreement between the values of BGT+ to discrete levels extracted from the (n,p) and (?-,?) reactions. The general consistency of the (n,p) and (?-,?) data, and the full 1s-0d shell model calculation, give confidence in a recent extraction of the weak pseudoscalar coupling from ?- capture on Na23. Finally, using both ?--decay and ?- capture data, we obtain unit cross sections from the Na23(n,p) measurement.

B. Siebels; T. P. Gorringe; W. P. Alford; J. Bauer; J. Evans; S. El-Kateb; K. P. Jackson; A. Trudel; S. Yen

1995-09-01T23:59:59.000Z

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


461

Jacobian Free-Newton Krylov Discontinuous Galerkin Method and Physics-Based Preconditioning for Nuclear Reactor Simulations  

SciTech Connect

Multidimensional, higher-order (2nd and higher) numerical methods have come to the forefront in recent years due to significant advances of computer technology and numerical algorithms, and have shown great potential as viable design tools for realistic applications. To achieve this goal, implicit high-order accurate coupling of the multiphysics simulations is a critical component. One of the issues that arise from multiphysics simulation is the necessity to resolve multiple time scales. For example, the dynamical time scales of neutron kinetics, fluid dynamics and heat conduction significantly differ (typically >1010 magnitude), with the dominant (fastest) physical mode also changing during the course of transient [Pope and Mousseau, 2007]. This leads to the severe time step restriction for stability in traditional multiphysics (i.e. operator split, semi-implicit discretization) simulations. The lower order methods suffer from an undesirable numerical dissipation. Thus implicit, higher order accurate scheme is necessary to perform seamlessly-coupled multiphysics simulations that can be used to analyze the what-if regulatory accident scenarios, or to design and optimize engineering systems.

HyeongKae Park; R. Nourgaliev; Richard C. Martineau; Dana A. Knoll

2008-09-01T23:59:59.000Z

462

Nuclear photonics  

SciTech Connect

With the planned new {gamma}-beam facilities like MEGa-ray at LLNL (USA) or ELI-NP at Bucharest (Romania) with 10{sup 13}{gamma}/s and a band width of {Delta}E{gamma}/E{gamma} Almost-Equal-To 10{sup -3}, a new era of {gamma} beams with energies up to 20MeV comes into operation, compared to the present world-leading HI{gamma}S facility at Duke University (USA) with 10{sup 8}{gamma}/s and {Delta}E{gamma}/E{gamma} Almost-Equal-To 3 Dot-Operator 10{sup -2}. In the long run even a seeded quantum FEL for {gamma} beams may become possible, with much higher brilliance and spectral flux. At the same time new exciting possibilities open up for focused {gamma} beams. Here we describe a new experiment at the {gamma} beam of the ILL reactor (Grenoble, France), where we observed for the first time that the index of refraction for {gamma} beams is determined by virtual pair creation. Using a combination of refractive and reflective optics, efficient monochromators for {gamma} beams are being developed. Thus, we have to optimize the total system: the {gamma}-beam facility, the {gamma}-beam optics and {gamma} detectors. We can trade {gamma} intensity for band width, going down to {Delta}E{gamma}/E{gamma} Almost-Equal-To 10{sup -6} and address individual nuclear levels. The term 'nuclear photonics' stresses the importance of nuclear applications. We can address with {gamma}-beams individual nuclear isotopes and not just elements like with X-ray beams. Compared to X rays, {gamma} beams can penetrate much deeper into big samples like radioactive waste barrels, motors or batteries. We can perform tomography and microscopy studies by focusing down to {mu}m resolution using Nuclear Resonance Fluorescence (NRF) for detection with eV resolution and high spatial resolution at the same time. We discuss the dominating M1 and E1 excitations like the scissors mode, two-phonon quadrupole octupole excitations, pygmy dipole excitations or giant dipole excitations under the new facet of applications. We find many new applications in biomedicine, green energy, radioactive waste management or homeland security. Also more brilliant secondary beams of neutrons and positrons can be produced.

Habs, D.; Guenther, M. M.; Jentschel, M.; Thirolf, P. G. [Ludwig-Maximilians-Universitaet Muenchen, D-85748 Garching (Germany); Max Planck Institut fuer Quantenoptik, D-85748 Garching (Germany); Institut Laue-Langevin, F-38042 Grenoble (Germany); Ludwig-Maximilians-Universitaet Muenchen, D-85748 Garching (Germany)

2012-07-09T23:59:59.000Z

463

NP Committees of Visitors | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

NP Committees of Visitors NP Committees of Visitors Deputy Director for Science Programs Deputy Director Home Mission & Functions Deputy Director Biography Organization Staff Presentations & Testimony Federal Advisory Committees Committees of Visitors ASCR Committees of Visitors BES Committees of Visitors BER Committees of Visitors FES Committees of Visitors HEP Committees of Visitors NP Committees of Visitors WDTS Committees of Visitors Contact Information Deputy Director for Science Programs U.S. Department of Energy SC-2/Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-5430 F: (202) 586-4120 E: sc.science@science.doe.gov U.S. Department of Energy SC-2/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-5316 F: (301) 903-7780 E: sc.science@science.doe.gov

464

ENDF/B-VII.0: Next Generation Evaluated Nuclear Data Library for Nuclear Science and Technology  

SciTech Connect

We describe the next generation general purpose Evaluated Nuclear Data File, ENDF/B-VII.0, of recommended nuclear data for advanced nuclear science and technology applications. The library, released by the U.S. Cross Section Evaluation Working Group (CSEWG) in December 2006, contains data primarily for reactions with incident neutrons, protons, and photons on almost 400 isotopes. The new evaluations are based on both experimental data and nuclear reaction theory predictions. The principal advances over the previous ENDF/B-VI library are the following: (1) New cross sections for U, Pu, Th, Np and Am actinide isotopes, with improved performance in integral validation criticality and neutron transmission benchmark tests; (2) More precise standard cross sections for neutron reactions on H, {sup 6}Li, {sup 10}B, Au and for {sup 235,238}U fission, developed by a collaboration with the IAEA and the OECD/NEA Working Party on Evaluation Cooperation (WPEC); (3) Improved thermal neutron scattering; (4) An extensive set of neutron cross sections on fission products developed through a WPEC collaboration; (5) A large suite of photonuclear reactions; (6) Extension of many neutron- and proton-induced reactions up to an energy of 150 MeV; (7) Many new light nucleus neutron and proton reactions; (8) Post-fission beta-delayed photon decay spectra; (9) New radioactive decay data; and (10) New methods developed to provide uncertainties and covariances, together with covariance evaluations for some sample cases. The paper provides an overview of this library, consisting of 14 sublibraries in the same, ENDF-6 format, as the earlier ENDF/B-VI library. We describe each of the 14 sublibraries, focusing on neutron reactions. Extensive validation, using radiation transport codes to simulate measured critical assemblies, show major improvements: (a) The long-standing underprediction of low enriched U thermal assemblies is removed; (b) The {sup 238}U, {sup 208}Pb, and {sup 9}Be reflector biases in fast systems are largely removed; (c) ENDF/B-VI.8 good agreement for simulations of highly enriched uranium assemblies is preserved; (d) The underprediction of fast criticality of {sup 233,235}U and {sup 239}Pu assemblies is removed; and (e) The intermediate spectrum critical assemblies are predicted more accurately. We anticipate that the new library will play an important role in nuclear technology applications, including transport simulations supporting national security, nonproliferation, advanced reactor and fuel cycle concepts, criticality safety, medicine, space applications, nuclear astrophysics, and nuclear physics facility design. The ENDF/B-VII.0 library is archived at the National Nuclear Data Center, BNL. The complete library, or any part of it, may be retrieved from www.nndc.bnl.gov.

Chadwick, M B; Oblozinsky, P; Herman, M; Greene, N M; McKnight, R D; Smith, D L; Young, P G; MacFarlane, R E; Hale, G M; Haight, R C; Frankle, S; Kahler, A C; Kawano, T; Little, R C; Madland, D G; Moller, P; Mosteller, R; Page, P; Talou, P; Trellue, H; White, M; Wilson, W B; Arcilla, R; Dunford, C L; Mughabghab, S F; Pritychenko, B; Rochman, D; Sonzogni, A A; Lubitz, C; Trumbull, T H; Weinman, J; Brown, D; Cullen, D E; Heinrichs, D; McNabb, D; Derrien, H; Dunn, M; Larson, N M; Leal, L C; Carlson, A D; Block, R C; Briggs, B; Cheng, E; Huria, H; Kozier, K; Courcelle, A; Pronyaev, V; der Marck, S

2006-10-02T23:59:59.000Z

465

Ferromagnetic behavior of the Kondo lattice compound Np2PtGa3  

Science Journals Connector (OSTI)

Here we report on a study of the ternary Np2PtGa3 compound. The x-ray-powder diffraction analysis reveals that the compound crystallizes in the orthorhombic CeCu2-type crystal structure (space group Imma) with lattice parameters a=0.4409(2) nm, b=0.7077(3) nm, and c=0.7683(3) nm at room temperature. The measurements of dc magnetization, specific heat, and electron transport properties in the temperature range 1.7300 K and in magnetic fields up to 9 T imply that this intermetallic compound belongs to a class of ferromagnetic Kondo systems. The Curie temperature of TC? 26 K is determined from the magnetization and specific-heat data. An enhanced coefficient of the electronic specific heat ? = 180mJ/(mol at. Np K2) and a ?lnT dependence of the electrical resistivity indicate the presence of a Kondo effect, which can be described in terms of the S=1 underscreened Kondo-lattice model. The estimated Kondo temperature TK?24 K, Hall mobility of ?16.8cm2/Vs, and effective mass of ?83me are consistent with an assumption that the heavy-fermion state develops in Np2PtGa3 at low temperatures. We compare the observed properties of Np2PtGa3 to that found in Np2PdGa3 and discuss their difference in regard to change in the exchange interaction between the conduction and localized 5f electrons. We have used the Fermi wave vector kF to evaluate the Rudermann-Kittel-Kasuya-Yosida (RKKY) exchange. Based on experimental data of the (U, Np)2(Pd, Pt)Ga3 compounds we suggest that the evolution of the magnetic ground states in these actinide compounds can be explained within the RKKY formalism.

V. H. Tran; J.-C. Griveau; R. Eloirdi; E. Colineau

2014-02-21T23:59:59.000Z

466

Nuclear Energy  

Science Journals Connector (OSTI)

Nuclear Energy ... A brief summary of the history and key concepts of nuclear energy. ... Nuclear / Radiochemistry ...

Charles D. Mickey

1980-01-01T23:59:59.000Z

467

Nuclear batteries  

Science Journals Connector (OSTI)

Nuclear batteries ... Describes the structure, operation, and application of nuclear batteries. ... Nuclear / Radiochemistry ...

Alfred B. Garrett

1956-01-01T23:59:59.000Z

468

Crystal structure refinement for Cs/sub 3/NpO/sub 2/Cl/sub 4/  

SciTech Connect

Diffractometry has been used with monochromatic Mo K/sub /alpha// radiation, /Theta//2/Theta/ method, full-matrix least-squares refinement in the anisotropic approximation, spherical single crystal 0.21 mm in diameter, and R factor on all 1570 reflections 0.028 in a refinement of the crystal structure for Cs/sub 3/NpO/sub 2/Cl/sub 4/. The compound is monoclinic: a = 1.5435 (6), b = 1.2796 (5), c = 0.7306 (3) nm, /gamma/ = 117.23 (5)/degree/, space group B2/b. Bond lengths: Np-20 0.1828 (5), Np-Cl/sub 1/ 0.2759 (3), Np-Cl/sub 2/ 0.2758(3). The Np-O bond characteristics have been compared for NpO/sub 2//sup 2+/ and NpO/sub 2//sup +/. It is concluded that there is marked reduction in the interaction between the equatorial and axial bonds in NpO/sup +//sub 2/ by comparison with NpO/sub 2//sup 2+/.

Lychev, A.A.; Mashirov, L.G; Smolin, Yu.I.; Shepelev, Yu.F.

1989-01-01T23:59:59.000Z

469

New Physics Search in the LHCb Era  

SciTech Connect

The authors present theoretical and experimental preparations for an indirect search for new physics (NP) using the rare decay {bar B}{sub d} {yields} {bar K}*{sup 0}{mu}{sup +}{mu}{sup -}. They design new observables with very small theoretical uncertainties and good experimental resolution.

Hurth, Tobias; /CERN /SLAC; ,

2010-06-11T23:59:59.000Z

470

Health Physics Practices and Experience at Duke Power Company  

Science Journals Connector (OSTI)

Technical Paper / Radiation Protection and Health Physics Practices and Experience in Operating Reactors Internationally / Nuclear Safety

Lionel Lewis

471

MASTER'S OF ADVANCED STUDIES IN MEDICAL PHYSICS  

E-Print Network (OSTI)

and Physiology as applied to Medical Physics · Radiobiology · Radiation Physics · Radiation Dosimetry · Physics of Nuclear Medicine · Medical Physics Imaging Fundamentals · Physics of Diagnostic and Interventional radiology, nuclear medicine and radiation protection in a hospital of the clinical network (hospitals

472

Nuclear Science Division Annual Report 1984-85  

E-Print Network (OSTI)

Argonne National Laboratory Physics Colloquium, March 22, 1985: Compression and Expansion in Realtivistic Nuclear

Mahoney Editor, Jeannette

2010-01-01T23:59:59.000Z

473

Does the Sun work as a nuclear fusion amplifier of planetary tidal forcing? A proposal for a physical mechanism based on the mass-luminosity relation  

E-Print Network (OSTI)

Empirical evidences show that planetary tides may influence solar activity: 1) the 11-yr Schwabe sunspot number cycle is constrained between the spring tidal period of Jupiter and Saturn, 9.93 yr, and the tidal orbital period of Jupiter, 11.86 yr, and a model based on these cycles reconstructs solar dynamics at multiple time ; 2) a measure of the alignment of Venus, Earth and Jupiter reveals quasi 11.07-yr cycles well correlated to the 11-year Schwabe solar cycles; 3) there exists a 11.08 yr cyclical recurrence in the solar jerk-shock vector, which is induced mostly by Mercury and Venus. However, Newtonian classical physics fails to explain the phenomenon. Only by means of a significant nuclear fusion amplification of the tidal gravitational potential energy released in the Sun, may planetary tides produce irradiance output oscillations with a sufficient magnitude to influence solar dynamo processes. Here we use an adaptation of the well-known mass-luminosity relation to calculate a conversion factor between ...

Scafetta, Nicola

2012-01-01T23:59:59.000Z

474

Physics Applications  

NLE Websites -- All DOE Office Websites (Extended Search)

Applications Applications Technetium-99m radioisotope generator developed at Brookhaven. Numerous physics-related programs at Brookhaven have yielded major advances in medicine and various technologies. Brookhaven's nuclear medicine program, which began in the 1950s, uses the Brookhaven Linac Isotope Producer to make radioisotopes for nuclear medicine diagnostics and treatment throughout the world. Today, more than 85 percent of all imaging examinations worldwide use one of the radioisotopes developed at Brookhaven. At Brookhaven's Center for Translational Neuroimaging, researchers can peer into a living brain through the use of various imaging modalities, including positron emission tomography (PET), magnetic resonance imaging (MRI), and optical imaging. Such research has led to a new understanding of

475

Oak Ridge National Laboratory - Physical Sciences Directorate  

NLE Websites -- All DOE Office Websites (Extended Search)

Physics The Physics Division of Oak Ridge National Laboratory is concerned primarily with studies of the fundamental properties of matter at the atomic, nuclear, and subnuclear...

476

Nuclear Forensics  

NLE Websites -- All DOE Office Websites (Extended Search)

nuclear forensics Nuclear Forensics AMS is a Powerful Tool for Nuclear Forensics Nuclear forensics, which can be applied to both interdicted materials and debris from a nuclear...

477

Z Machine | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

use for the nuclear weapons mission as well as increased interest by researchers in high energy density physics, condensed matter physics, planetary science, and laboratory...

478

Am phases in the matrix of a U-Pu-Zr alloy with Np, Am, and rare-earth elements  

SciTech Connect

Phases and microstructures in the matrix of an as-cast U-Pu-Zr alloy with 3 wt% Am, 2% Np, and 8% rare-earth elements were characterized by scanning and transmission electron microscopy. The matrix consists primarily of two phases, both of which contain Am: ?-(U, Np, Pu, Am) (~70 at% U, 5% Np, 14% Pu, 1% Am, and 10% Zr) and ?-(U, Np, Pu, Am)Zr2 (~25% U, 2% Np, 10-15% Pu, 1-2% Am, and 55-60 at% Zr). These phases are similar to those in U-Pu-Zr alloys, although the Zr content in ?-(U, Np, Pu, Am) is higher than that in ?-(U, Pu) and the Zr content in ?-(U, Np, Pu, Am)Zr2 is lower than that in ?-UZr2. Nanocrystalline actinide oxides with structures similar to UO2 occurred in some areas, but may have formed by reactions with the atmosphere during sample handling. Planar features consisting of a central zone of ?-(U, Np, Pu, Am) bracketed by zones of ?-(U, Np, Pu, Am)Zr2 bound irregular polygons ranging in size from a few micrometers to a few tens of micrometers across. The rest of the matrix consists of elongated domains of ?-(U, Np, Pu, Am) and ?-(U, Np, Pu, Am)Zr2. Each of these domains is a few tens of nanometers across and a few hundred nanometers long. The domains display strong preferred orientations involving areas a few hundred nanometers to a few micrometers across.

Dawn E Janney; J. Rory Kennedy; James W. Madden; Thomas P. O'Holleran

2015-01-01T23:59:59.000Z

479

Nuclear Plant Dynamics and Safety - Nuclear Engineering Division (Argonne)  

NLE Websites -- All DOE Office Websites (Extended Search)

Nuclear Systems Nuclear Systems Modeling and Design Analysis > Nuclear Plant Dynamics and Safety Capabilities Nuclear Systems Modeling and Design Analysis Reactor Physics and Fuel Cycle Analysis Overview Current Projects Software Nuclear Plant Dynamics and Safety Nuclear Data Program Advanced Reactor Development Nuclear Waste Form and Repository Performance Modeling Nuclear Energy Systems Design and Development Other Capabilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Reactor Physics and Fuel Cycle Analysis Nuclear Plant Dynamics and Safety Bookmark and Share Activities in Nuclear Plant Dynamics and Safety research and development fulfill a primary goal of the Nuclear Engineering (NE) Division to promote improvements in safe and reliable operation of present and future

480

High temperature ablation resistance of ZrNp reinforced W matrix composites  

E-Print Network (OSTI)

modulus of elasticity, good thermal shock resistance, stiffness and good high temperature strengthHigh temperature ablation resistance of ZrNp reinforced W matrix composites Malik Adeel Umer microscopy (SEM) For the purpose of improving the high temperature ablation resistance of tungsten

Hong, Soon Hyung

Note: This page contains sample records for the topic "nuclear physics np" from the National Library of EnergyBeta (NLEBeta).
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481

The Surface Measure and Cone Measure on the sphere of `np Assaf Naor *  

E-Print Network (OSTI)

The Surface Measure and Cone Measure on the sphere of `np of Schechtman and Zinn, is used to s* *tudy the distance between the cone measure and surface measure Introduction For every star shaped body K Rn, one can define two natural measures on the b* *oundary of K

Naor, Assaf

482

On P vs. NP and Geometric Complexity Theory Dedicated to Sri Ramakrishna  

E-Print Network (OSTI)

problems focussing on its main complexity theoretic results. These are: (1) two concrete lower bounds. determinant problems, (2) the Flip Theorem, which formalizes the self referential paradox in the P vs. NP. determinant problems into subproblems without self referen- tial difficulty, consisting of positivity

Mulmuley, Ketan

483

Concurrent Zero-Knowledge Proofs for NP Joe Kilian y Erez Petrank z Ransom Richardson x  

E-Print Network (OSTI)

Cummings Center, Beverly, MA 01915. rrichard@groove.net. 1 #12; zero-knowledge protocols that are robustConcurrent Zero-Knowledge Proofs for NP #3; Joe Kilian y Erez Petrank z Ransom Richardson x November 26, 2001 Abstract A proof is concurrent zero-knowledge if it remains zero-knowledge when many

Petrank, Erez

484

Protein Folding in the Hydrophobic-Hydrophilic (HP) Model is NP-Complete  

E-Print Network (OSTI)

Protein Folding in the Hydrophobic-Hydrophilic (HP) Model is NP-Complete Bonnie Berger* Tom Leightont Abstract One of the simplest and most popular biophysical mod- els of protein folding is the hydrophobic-hydrophilic (HP) model. The HP model abstracts the hydrophobic in- teraction in protein folding

Istrail, Sorin

485

Magnetic and electronic properties of NpCo2: Evidence for long-range magnetic order  

Science Journals Connector (OSTI)

The magnetic and electronic properties of the cubic Laves phase intermetallic compound NpCo2 have been investigated by magnetization, specific heat, and electrical resistivity measurements. Magnetization data confirm previous results, i.e., an antiferromagneticlike order at 12.5 K and a metamagnetic transition at Bm?4.3 T at 3 K with a saturation moment of ?0.6 ?B. Although extensive neutron diffraction studies failed to establish the nature of the antiferromagnetic order, its occurrence is confirmed by specific heat measurements that also highlight the presence of magnetic fluctuations suppressed by the application of an external field larger than Bm. The observed high value of the electronic specific heat, ?0?330mJ/mol?K2 as T ? 0, and the minute magnetic entropy, Fermi liquid behavior at low temperature. The electronic structure of NpCo2 was examined theoretically and compared to experimental data. Local spin density approximation (LSDA) calculations show that this material is close to a magnetic instability and that ferromagnetic alignment of the Np moments is the most stable. LSDA+U calculations in the fully localized limit with U= 0 give reasonable agreement with the experimental Np moment value and their orbital and spin contributions.

J. P. Sanchez; J.-C. Griveau; P. Javorsky; E. Colineau; R. Eloirdi; P. Boulet; J. Rebizant; F. Wastin; A. B. Shick; R. Caciuffo

2013-04-10T23:59:59.000Z

486

Proposal for a High Energy Nuclear Database  

E-Print Network (OSTI)

Proposal for a High Energy Nuclear Database David A. Brown 1it requires the high-energy nuclear physics com- munitys ?compilations of high-energy nuclear data for applications

Brown, David A.; Vogt, Ramona

2005-01-01T23:59:59.000Z

487

Nathaniel J Fisch | Princeton Plasma Physics Lab  

NLE Websites -- All DOE Office Websites (Extended Search)

His professional interests include: plasma physics with applications to nuclear fusion, astrophysics, plasma-based pulse compression, plasma thrusters, plasma...

488

The reduction of Np(VI) and Pu(VI) by organic chelating agents.  

SciTech Connect

The reduction of NpO{sup 2+} and PuO{sub 2}{sup 2+} by oxalate. citrate, and ethylenediaminetetraacetic acid (EDTA) was investigated in low ionic strength media and brines. This was done to help establish the stability of the An(VI) oxidation state in the presence of organic complexants. The stability of the An(VI) oxidation state depended on the pH and relative strength of the various oxidation state-specific complexes. At low ionic strength and pH 6, NpO{sub 2}O{sup 2+} was rapidly reduced to form NpO{sub 2}{sup +} organic complexes. At longer times, Np(IV) organic complexes were observed in the presence of citrate. PuO{sub 2}{sup 2+} was predominantly reduced to Pu{sup 4+}, resulting in the formation of organic complexes or polymeric/hydrolytic precipitates. The relative rates of reduction to the An(V) complex were EDTA > citrate > oxalate. Subsequent reduction to An(IV) complexes, however, occurred in the following order: citrate > EDTA > oxalate because of the stability of the An(V)-EDTA complex. The presence of organic complexants led to the rapid reduction of NpO{sub 2}{sup 2+} and PuO{sub 2}P{sup 2+} in G-seep brine at pHs 5 and 7. At pHs 8 and 10 in ERDA-6 brine, carbonate and hydrolytic complexes predominated and slowed down or prevented the reduction of An(VI) by the organics present.

Reed, D.T.; Aase, S.B.; Banaszak, J.E.

1998-03-19T23:59:59.000Z

489

Physics Division progress report for period ending September 30, 1983  

SciTech Connect

Research and development activities are summarized in the following areas: Holifield Heavy Ion Research Facility, nuclear physics, the UNISOR program, accelerator-based atomic physics, theoretical physics, nuclear science applications, atomic physics and plasma diagnostics for fusion program, high-energy physics, the nuclear data project, and the relativistic heavy-ion collider study. Publications and papers presented are listed. (WHK)

Not Available

1983-12-01T23:59:59.000Z

490

Physical Protection  

Directives, Delegations, and Requirements

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

2005-08-26T23:59:59.000Z

491

Physical Protection  

Directives, Delegations, and Requirements

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

2005-08-26T23:59:59.000Z

492

Physics Division annual review, April 1, 1991--March 31, 1992  

SciTech Connect

This report contains brief discusses on topics in the following areas: Research at atlas; operation and development of atlas; medium-energy nuclear physics and weak interactions; theoretical nuclear physics; and atomic and molecular physics research.

Henning, W.F.

1992-08-01T23:59:59.000Z

493

Furth Plasma Physics Library | Princeton Plasma Physics Lab  

NLE Websites -- All DOE Office Websites (Extended Search)

in support of PPPL's research in the fields of plasma physics and controlled nuclear fusion. For more information about the library and its services visit the library website...

494

Crossrelaxation and nuclear orientation in ytterbium vanadate  

Science Journals Connector (OSTI)

...targets for experiments in nuclear physics, for example by Abragam and Goldman...targets for experiments in nuclear physics, for example by Abragam & Goldman...and hyperfine interactions. In Handbook on the physics and chemistry of rare earths...

1999-01-01T23:59:59.000Z

495

Complexation study of NpO{sub 2}{sup +} and UO{sub 2}{sup 2+} ions with several organic ligands in aqueous solutions of high ionic strength  

SciTech Connect

The acid dissociation constants, pK{sub a}, and the stability constants for NpO{sub 2}{sup +} and UO{sub 2}{sup 2+} have been measured for certain organic ligands [acetate, {alpha}-hydroxyisobutyrate, lactate, ascorbate, oxalate, citrate, EDTA, 8-hydroxyquinoline, 1, 10-phenanthroline, and thenoyltrifluoroacetone] in 5 m (NaCl) ionic strength solution. The pK{sub a} values were determined by potentiometry or spectrometry. These methods, as well as solvent extraction with {sup 233}U and {sup 237}Np radiotracers, were used to measure the stability constants of the 1:1 and 1:2 complexes of dioxo cations. These constants were used to estimate the concentrations required to result in 10 % competition with hydrolysis in the 5 m NaCl solution. Such estimates are of value in assessing the solubility from radioactive waste of AnO{sub 2}{sup +} and AnO{sub 2}{sup 2+} in brine solutions in contact with nuclear waste in a salt-bed repository.

Borkowski, M.; Lis, S.; Choppin, G.R. [Florida State Univ., Tallahassee, FL (United States)

1995-09-01T23:59:59.000Z

496

Physics division annual report 2006.  

SciTech Connect

This report highlights the activities of the Physics Division of Argonne National Laboratory in 2006. The Division's programs include the operation as a national user facility of ATLAS, the Argonne Tandem Linear Accelerator System, research in nuclear structure and reactions, nuclear astrophysics, nuclear theory, investigations in medium-energy nuclear physics as well as research and development in accelerator technology. The mission of nuclear physics is to understand the origin, evolution and structure of baryonic matter in the universe--the core of matter, the fuel of stars, and the basic constituent of life itself. The Division's research focuses on innovative new ways to address this mission.

Glover, J.; Physics

2008-02-28T23:59:59.000Z

497

Chemical Effects at the Reaction Front in Corroding Spent Nuclear Fuel  

SciTech Connect

Performance assessment models of the U. S. repository at Yucca Mountain, Nevada suggest that neptunium from spent nuclear fuel is a potentially important dose contributor. A scientific understanding of how the UO{sub 2} matrix of spent nuclear fuel impacts the oxidative dissolution and reductive precipitation of Np is needed to predict the behavior of Np at the fuel surface during aqueous corrosion. Neptunium would most likely be transported as aqueous Np(V) species, but for this to occur it must first be oxidized from the Np(IV) state found within the parent spent nuclear fuel. In this paper we present synchrotron X-ray absorption spectroscopy and microscopy findings that illuminate the resultant local chemistry of neptunium and plutonium within uranium oxide spent nuclear fuel before and after corrosive alteration in an air-saturated aqueous environment. We find the Pu and Np in unaltered spent fuel to have a +4 oxidation state and an environment consistent with solid-solution in the UO{sub 2} matrix. During corrosion in an air-saturated aqueous environment, the uranium matrix is converted to uranyl (UO{sub 2}{sup 2+}) mineral assemblage that is depleted in Np and Pu relative to the parent fuel. The transition from U(IV) in the fuel to a fully U(VI) character across the corrosion front is not sharp, but occurs over a transition zone of {approx} 50 micrometers. We find evidence of a thin ({approx} 20 micrometer) layer that is enriched in Pu and Np within a predominantly U(IV) environment on the fuel side of the transition zone. These experimental observations are consistent with available data for the standard reduction potentials for NpO{sub 2}{sup +}/Np{sup 4+} and UO{sub 2}{sup 2+}/U{sup 4+} couples, which indicate that Np(IV) may not be effectively oxidized to Np(V) at the corrosion potential of uranium dioxide spent nuclear fuel in air-saturated aqueous solutions. (authors)

Fortner, Jeffrey A.; Kropf, A. Jeremy; Jerden, James L.; Cunnane, James C. [Chemical Engineering, Argonne National Laboratory, CMT/205, 9700 S. Cass Avenue, Argonne, IL, 60439 (United States)

2007-07-01T23:59:59.000Z

498

Nuclear Physics: Collisions in ADONE  

Science Journals Connector (OSTI)

... electrons and positrons the density of the beams is increased by the damping caused by synchroton radiation.

A Correspondent

1969-06-07T23:59:59.000Z

499

Nuclear Physics: CERN Storage Rings  

Science Journals Connector (OSTI)

... and his colleagues, the ISRs were each filled by repetitive injection from the CERN proton synchroton to an intensity of 2 A which corresponds to 4 x 10+13 protons. ...

1971-07-09T23:59:59.000Z

500

Intermediate Energy Nuclear Physics Program  

SciTech Connect

The originally proposed and funded research activities followed two major areas of study: semileptonic probes of the hadronic neutral current and charm production. The charm production work revolved around the Jefferson Lab experiment E03-008, 'Sub-threshold J/psi Photoprouction', which ran in late 2004. The PI was a co-spokesperson for the experiment. For the three year renewal proposal starting in 2007, the scope and size of the research project changed and increased. In addition to the parity violating studies, the PI had well defined lead roles in a series experiments nucleon spin-structure functions.

Dunne, James, A.

2012-06-22T23:59:59.000Z