Summary:  pointillée de la figure 1). D'autre part, l' e~cience relative du détecteur, au scintillateur liquide 5" X 3... neutrons de la réaction T(d, n)4He; 2) entre 8,2 MeV et 16,3 MeV par la diffusion des neutrons sur les... calcul d'absorption et de diffusion FIG. 2. - ...

Source: Ecole Polytechnique, Centre de mathématiques

Collection: Mathematics

Summary:  reacting systems. Neutron diffusion and moderation. One, two and multi group diffusion equation solution... . Course Objective: Teach students to apply advanced mathematics to solve problems in neutron diffusion... : · Students can solve the one-speed neutron ...

Source: Zhang, Junshan - Department of Electrical Engineering, Arizona State University

Collection: Engineering ; Computer Technologies and Information Sciences

Summary:  -------------------- D 1 ­( ) 2 -------------------- 1­( ) D d -----= 1 0/ #12;R108 I. P´azsit noticing... of a microsecond, whereas thermal diffusion of a slowed down neutron takes milliseconds or even longer time... as that in the target nucleus (lead). G~ x z t, ,( ) S td t0 t p n( ) ...

Source: Pázsit, Imre - Department of Reactor Physics,Chalmers University of Technology

Collection: Fission and Nuclear Technologies

Summary:  les sections efficaces daldC»l dC»2 dEI (El étant l'énergie du neutron émis dans la direction w1), d6... efficaces correspondant à l'éjection d'un neutron (faiblement lié) du 9Be par un neutron incident de 0 à 10... are calculated for the knock-out process of the weakly-bound ...

Source: Ecole Polytechnique, Centre de mathématiques

Collection: Mathematics

Summary:  .Chabrier,2 A.D.Kaminker,1 D.G.Yakovlev,1 ... Introduction: Neutron stars and their importance... Dense matter in neutron stars and their envelopes A.Y.Potekhin1,2 in collaboration with G... for fundamental physics Neutron-star envelopes ­ link between the superdense core and ...

Source: Ioffe Physico-Technical Institute, Department of Theoretical Astrophysics

Collection: Physics

Summary:  shells between d5/2 neutrons works on opposite way. The tensor interaction between 1d5/2 neutrons and 1p1... isotopes 1p1/2 the proton shell is empty so there is no tensor interaction between 1d5/2 neutrons and 1p1... /2 proton single particle ...

Source: Magiera, Andrzej - Instytut Fizyki, Uniwersytet Jagiellonski

Collection: Physics

Summary:  of nuclear reactor types 4. One-speed diffusion theory, source driven and critical systems 5. 1-D neutron... principles of nuclear reactors. Topics include neutron diffusion theory, criticality and multigroup theory... Analysis", Wiley-Interscience, 1976, ...

Source: Das, Suman - School of Mechanical Engineering, Georgia Institute of Technology

Collection: Engineering

Summary:  1 Contents Page Scientific Prospects for Neutron Scattering with Present and Future Sources An ESF... Exploratory Workshop in collaboration with the European Neutron Scattering Association (ENSA) held... Materials science 109 Engineering 120 Further applications of neutrons 128 Appendix 133 A. Invitation letter

Source: Dove, Martin - Department of Earth Sciences, University of Cambridge

Collection: Materials Science ; Geosciences

Summary:  ×× + = 0 Numerator depends implicitly on 5 factors: 1 d 2 dEf 3 vf = kf/m -- speed of scattered neutrons 4... Intensity Q = half width at half maximum ~ 1/ Diffuse scattering #12;Nuclear neutron diffraction... Concepts of Neutron ScatteringConcepts of ...

Source: Boothroyd, Andrew - Department of Physics, University of Oxford

Collection: Materials Science ; Physics

Summary:  and Mineral Sciences are described. Keywords: Neutron scattering, inelastic neutron scattering, diffuse... diffractometer at the ISIS spallation neutron source (courtesy of S.A.T Redfern). Fig. 8. Map of diffuse... from the average density. Many aspects of the technique of ...

Source: Dove, Martin - Department of Earth Sciences, University of Cambridge

Collection: Materials Science ; Geosciences

Summary:  , PAT "Dynamic Instability Transitions in 1D Driven Diffusive Flow with Non- local Hopping" Chalkboard... PHYSICS COLLOQUIUM, partially funded by the GSFEI Jim Lattimer "Neutron Star Observations... Reception at 3:45 P.M. in the lobby Abstract: Current and proposed observations of neutron ...

Source: Washington at Seattle, University of - Department of Physics, Electroweak Interaction Research Group - Neutron Beta Decay Time Reversal Invariance Test

Collection: Physics

Summary:  Enhanced cooling of neutron stars via Cooper-pairing neutrino emission M. E. Gusakov1, A. D. Kaminker1, D... ), (5) () = 1 2 1 d F( ) 3/2 - , (6) where m = T/Tcm. The integration can be done numerically... / Accepted 2 May 2004 Abstract. We simulate cooling of superfluid ...

Source: Ioffe Physico-Technical Institute, Department of Theoretical Astrophysics

Collection: Physics

Summary:  la diffusion de neutrons de quelques keV par des noyaux lourds est donnée. On montre que la... i n g radius R' : b = 3, 5x10-6+ r t ~ e v - ~ / ~ ( 2 1 ( d n is i n units 10-42 cm3, R' is i n fm... OF NEUTRON FROM PRECISE NEUTRON MEASUREMENTS G.S. Samosvat Joint ...

Source: Ecole Polytechnique, Centre de mathématiques

Collection: Mathematics

Summary:  response. #12;SPWLA 52nd Annual Logging Symposium, May 14-18, 2011 5 Fig. 4 Spatial 1D total/fast neutron... formation. Neutrons in the thermal energy range (below 0.41eV) are primarily transported by diffusion before... -6 show 1-D FSF profiles ...

Source: Torres-Verdín, Carlos - Department of Petroleum and Geosystems Engineering, University of Texas at Austin

Collection: Fossil Fuels ; Geosciences

Summary:  nombre FIG. 1. d'expériences très diverses, et, en particulier, dans plusieurs mesures de V. Dans ce cas... mesurés en l'absence de faisceau. Le convertisseur opère une certaine diffusion sur les neutrons... LE JOURNAL DE PHYSIQUE ET LE RADIUM NOMBRES MOYENS DE NEUTRONS PROMPTS ÉMIS ...

Source: Ecole Polytechnique, Centre de mathématiques

Collection: Mathematics

Summary:  D Neutron Imaging Prototype Station* · CG-2 General-Purpose SANS · CG-3 Bio-SANS · CG-4C Cold... For more information: Neutron Scattering Science User Office, neutronusers@ornl.gov or (865) 574... Neutron Source (SNS) will be accepted via the web-based proposal system until 11:59 p.m. eastern time

Source: Controlled Fusion Atomic Data Center (CFADC)

Collection: Plasma Physics and Fusion

Summary:  D Neutron Imaging Prototype Station* · CG-2 General-Purpose SANS · CG-3 Bio-SANS · CG-4C Cold... For more information: Neutron Scattering Science User Office, neutronusers@ornl.gov or (865) 574... Neutron Source (SNS) will be accepted via the web-based proposal system until 11:59 p.m. eastern time

Source: Controlled Fusion Atomic Data Center (CFADC)

Collection: Plasma Physics and Fusion

Summary:  is not expected to be too different from the production rate of such neutrons in the rock, which is 4 kg-1 d-1... ; this is negligible com- pared to the 100 kg-1 d-1 and 243 kg-1 d-1 production rates of neutrons by muon ...

Source: Cryogenic Dark Matter Search

Collection: Physics

Summary:  of cooling neutron stars with accreted envelopes A. D. Kaminker,1 M. E. Gusakov,1 D. G. Yakovlev1 and O. Y... ' cooling scenario of superfluid neutron stars with nucleon cores, where the direct Urca process... is forbidden and enhanced cooling is produced by neutrino emission due to the Cooper pairing of ...

Source: Gnedin, Oleg Y. - Department of Astronomy, University of Michigan; Ioffe Physico-Technical Institute, Department of Theoretical Astrophysics

Collection: Physics

Summary:  for State Support of Leading Scientific Schools (project no. NSh 2600.2008.2). REFERENCES 1. D. Arnett... Astronomicheskii Zhurnal, 2008, Vol. 34, No. 10, pp. 746­756. A Young Cooling Neutron Star in the Remnant... --We describe the cooling theory for isolated neutron stars that are several tens of years ...

Source: Ioffe Physico-Technical Institute, Department of Theoretical Astrophysics

Collection: Physics

Summary:  #12;This is the first annual report of the Oak Ridge National Laboratory Neutron Sciences... Directorate for calendar year 2007. It describes the neutron science facilities, current developments... and staff. The Neutron Sciences Directorate is responsible for operation of the High Flux Isotope Reactor

Source: Controlled Fusion Atomic Data Center (CFADC)

Collection: Plasma Physics and Fusion

Summary:  82 LA DIFFUSION DES NEUTRONS A. GUINIER Physique des Solides, Université Paris-Sud, 91405 Orsay... , France Résumé. 2014 On rappellera les bases physiques de la diffusion des neutrons en insistant sur les... caractéristiques du phénomène qui la différencie de la diffusion des rayons ...

Source: Ecole Polytechnique, Centre de mathématiques

Collection: Mathematics

Summary:  as well as monomer units bound in poly- mer chains, is given by dN x dN0 1 dN1 cos Kx 1 dN2 cos 2Kx 1... originally studied the behavior up to the second harmonics, considering dNM 1 2 dNM,0 1 dNM,1 cos Kx 1 dNM,2... ...

Source: Lyuksyutov, Sergei - Department of Physics, University of Akron

Collection: Materials Science ; Physics

Summary:  ). This model solves the 1D quasi-steady state transport equation of GCR in the heliosphere by a stochastic... HELIOSPHERIC MODULATION STRENGTH: EFFECTIVE NEUTRON MONITOR ENERGY K. Alanko', I.G. Usoskin2 K. Mursula', and G... Institute, 194021, St. Petersburg, Russia ABSTRACT The widely used concept of the ...

Source: Mursula, Kalevi - Department of Physical Sciences, University of Oulu

Collection: Physics

Summary:  P + 1 2 2 g2 c2 s - l(l + 1) g2 R2 F = 0. (13) The boundary conditions (7) and (8) can be written as 1 d... F1 dP = 2 dF2 dP , (14) F1 = 2 1 F2 + 2 1 - 1 g2 2 1 dF1 dP . (15) Therefore, equation (13... -similar pressure ...

Source: Ioffe Physico-Technical Institute, Department of Theoretical Astrophysics

Collection: Physics

Summary:  a bare substrate and Fresnel's Law Apply 1-d Schrödinger Equation: using the trial wave functions... . S. DEPARTMENT OF ENERGY 15Performance Measures 12/21/2006 z 1-d Reflection at Interfaces VF(z)= 2k... An Introduction to Neutron Reflectivity Greg Smith Group Leader, Low-Q Scattering ...

Source: Controlled Fusion Atomic Data Center (CFADC)

Collection: Plasma Physics and Fusion

Summary:  for simplicity only. (i) The Ni atoms are assumed to have a spin of 1/2. This corresponds to exactly 1d hole per... OF GIANT SPIN CLUSTERS TO THE RESISTIVITY, NEUTRON SCATTERING CROSS SECTION AND SPECIFIC HEAT IN ALLOYS... spins est utilisk pour calculerla contribution des spinsala resistivite,a la sectionefficacede ...

Source: Ecole Polytechnique, Centre de mathématiques

Collection: Mathematics

Summary:  and cosmic-ray production1 D. B. MELROSE Belfer Graduate School of Science, Yeshiva Uniuersity, New York, N... Neutron stars and cosmic-ray production D. B. MELROSEAND A. G. W. CAMERON #12;Neutron stars... investigations of the properties of neutron stars and of supernova explosions ...

Source: Melrose, Don - School of Physics, University of Sydney

Collection: Physics

Summary:  cooling after deep crustal heating in the X-ray transient KS 1731­260 P. S. Shternin,1 D. G. Yakovlev,1 P... - duce the time of heat propagation through the blanketing layer from 1 yr to 1 d (enabling the code... to trace short-term ­ 1 d ­ surface temperature ...

Source: Ioffe Physico-Technical Institute, Department of Theoretical Astrophysics

Collection: Physics

Summary:  been used in the past to calculate specular and diffuse neutron reflection from structured surfaces... < d=2; & ð8Þ where f is the filling factor and silicon = 2.06 Â 10À4 nmÀ2 . Thus mod l ¼ 1 d Zd=2 Àd=2... of crystallographic methods to study crystalline and non-crystalline mat- ter with ...

Source: Schaich, William L. - Department of Physics, Indiana University

Collection: Physics

Summary:  imaging capabilities, uses cold neutrons at hFir's cg-1d beam line to image automobile engine system... and industry use neutron imaging to improve energy efficiency Hassina Bilheux at CG-1D. 20 SCIEnCE HIGHLIGHTS... successful since we started in decem- ber 2009 ...

Source: Controlled Fusion Atomic Data Center (CFADC)

Collection: Plasma Physics and Fusion

Summary:  by the 1D heisenberg chain [2]. It was therefore of interest to search for 1D magnetism in Tb2C13... Laboratory for Neutron-Scattering, ETH Ziirich, CH-5303 Wurenlingen, Switzerland Abstract. - We have... investigated the magnetic structure of Tb2C13by means of ...

Source: Ecole Polytechnique, Centre de mathématiques

Collection: Mathematics

Summary:  Comparative study of 2-group P1 and diffusion theories for the calculation of the neutron noise... in 1D 2-region systems Viktor Larsson *, Christophe Demazière Chalmers University of Technology... of the neutron flux around its mean value, is calculated in 2-group P1 and ...

Source: Demazière, Christophe - Department of Reactor Physics, Chalmers University of Technology

Collection: Fission and Nuclear Technologies

Summary:  by a temporal diffusion pro- file, because the increased flux duration will depend only on neutron scattering... of a monotonously decreasing long-term source, the temporal profile of the neutron flux will also be diffusion- like... Natural Hazards and Earth System Sciences Distribution of ...

Source: Ecole Polytechnique, Centre de mathématiques

Collection: Mathematics

Summary:  as a spread in energy of the scattered neutron wave packet. Rapid movement cage diffusion results in a large... to the neutron scattering study 2 cage diffusion accounted for up to 20% of the loss in correlation... , the shell can be recompleted Fig. 1 d . One can ...

Source: Montfrooij, Wouter - Department of Physics and Astronomy, University of Missouri-Columbia

Collection: Physics

Summary:  can be generated from a single mouse click. The user can create multi-line plots from 1D (one... , generation of 1D slices from 2D data, and combination of multiple data sets into a single 2D data set... 1. Introduction Low energy neutrons have been used to probe the atomic and molecular ...

Source: Dimeo, Robert M. - Center for Neutron Research, National Institute of Standards and Technology

Collection: Physics

Summary:  , 14, 695. [4] AUSTERN, BUTLER et MCMANUS, Phys. Rev., 1953, 92, 350. DIFFUSION INÉLASTIQUE DE NEUTRONS... 'avons pas décelé d'interaction directe dans la diffusion inélastique des neutrons à basse énergie. Abstract... 384 où r est la coordonnée du neutron s celle du nucléon ...

Source: Ecole Polytechnique, Centre de mathématiques

Collection: Mathematics

Summary:  Study of Fuel Cell Water Transport With Neutron Imaging David Jacobson (NIST) Paul Huffman (NIST... ;Approach Develop neutron imaging method to non- destructively visualize and quantify water transport... in fully assembled operating fuel cells. Develop a nuclear reactor based state of the art neutron imaging

Source: DOE Office of Energy Efficiency and Renewable Energy, Hydrogen, Fuel Cells and Infrastructure Technologies Program

Collection: Energy Storage, Conversion and Utilization ; Renewable Energy

Summary:  by neutron monitors. Using a 1D model of the heliospheric transport of cosmic rays and the specific yield... can see in Fig. 1 that, e.g., the value Eeff = 6.3 GeV makes the ratio nearly constant (within 1%, d... 28th International Cosmic Ray Conference 3901 Effective Energy of ...

Source: Mursula, Kalevi - Department of Physical Sciences, University of Oulu; Usoskin, Ilya G. - Sodankyla Geophysical Observatory, University of Oulu

Collection: Geosciences ; Physics

Summary:  i RIJKSUNIVERSITEIT GRONINGEN In-situ element analysis from gamma-ray and neutron spectra using... a pulsed-neutron source Proefschrift ter verkrijging van het doctoraat in de Wiskunde en... INTRODUCTION _____________________________________13 2.1 Neutron properties

Source: Groningen, Rijksuniversiteit - Centre for Ecological and Evolutionary Studies, Department of Marine Benthic Ecology and Evolution,

Collection: Biology and Medicine ; Environmental Sciences and Ecology

Summary:  and diffusion theories for the calculation of the neutron noise in 1-D 2-region systems. Ann. Nucl. Energy 36... Keywords: Neutron noise ANM Power reactor approximation 2-Group theory Diffusion theory In this study... Þ and the ...

Source: Demazière, Christophe - Department of Reactor Physics, Chalmers University of Technology

Collection: Fission and Nuclear Technologies

Summary:  the measured capture cross section. It includes a correction procedure based on 1D neutron diffusion theory... approximation to evaluate the ensuing expression for R and validated the use of 1D neutron diffusion theory... in ...

Source: Torres-Verdín, Carlos - Department of Petroleum and Geosystems Engineering, University of Texas at Austin

Collection: Fossil Fuels ; Geosciences

Summary:  by DNDO Academic Research Initiative, award number 2008-DN-077-ARI008-03. REFERENCES 1. D Mcgregor, M... Directional Response of Microstructure Solid State Thermal Neutron Detectors Justin Dingleya... and fabrication of solid-state thermal neutron detectors1,2,3 aim at improving device efficiency

Source: Danon, Yaron - Department of Mechanical, Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute

Collection: Fission and Nuclear Technologies

Summary:  and diffusion theories for the calculation of the neutron noise in 1-D 2-region systems. Ann. Nucl. Energy 36... Diffusion theory a b s t r a c t In this study, the neutron noise, i.e. the stationary fluctuations... of the neutron flux around its ...

Source: Demazière, Christophe - Department of Reactor Physics, Chalmers University of Technology

Collection: Fission and Nuclear Technologies

Summary:  ] = (-1.5± 0.3) ·10-3 (1992) References: [1] D. Dubbers, Neutron News 5, 21 (1994); Nucl. Phys. A 654, 297... 2 = ( ) ( ) max max 2.1-7 #12;1/D), if there are sharp boundaries between the phases of the system... #12;NEUTRON DATA BOOKLET AFFILIATIONS H. Börner, J. ...

Source: Controlled Fusion Atomic Data Center (CFADC)

Collection: Plasma Physics and Fusion

Summary:  reserved. Keywords: Transient flow; Wetting front; Real-time neutron radiography; Diffusivity; Image... . 2. Flow equations Following the method of Selker et al. (1992) the one-dimensional (1D) flux within... velocity Selker et al. (1992) derived an expression relating the ...

Source: Deinert, Mark - Department of Mechanical Engineering, University of Texas at Austin

Collection: Energy Storage, Conversion and Utilization ; Fission and Nuclear Technologies

Summary:  The New Munich Neutron Source FRM II: Overview and Uses for Biological Studies Wolfgang Doster... . The application of neutron scattering to biological systems using the new neutron source in Munich is discussed... and reflectometers are explained. Keywords: Neutron sources PACS: 25.85.Ec, 28.20.Cz,29.25.Dz, ...

Source: Doster, Wolfgang - Physik Department, Technische Universität München

Collection: Physics ; Biology and Medicine

Summary:  , and is given approximately by AEd = - N - Z x pproton(lr - r' 1) d3rd3r' (3.2) where V,(r) is the potential due... NEUTRON DISTRIBUTIONS R. C. BARRETT University of Surrey, Guildford, Surrey, U. K. RBsumB. -Un rappel des... calculs de distributions de densite de neutrons B partir du modtile a particules ...

Source: Ecole Polytechnique, Centre de mathématiques

Collection: Mathematics

Summary:  diffusion incohérente quasiélastique et élastique de neutrons. Le manuscrit est basé sur trois articles... fondamentale pour la fonction biologique. La technique de diffusion incohérente des neutrons est très bien... conséquence, la diffusion incohérente de ...

Source: Ecole Polytechnique, Centre de mathématiques

Collection: Mathematics

Summary:  'excitotion ~ i ~ (p,d ) ~i~ Ep-155,9 MeV 1 1 hW 1 dN - Li7(p,t) ~i~ 8+=12°(lob) d Ü I I 4000 Ep=155,8 MeV N d N d... le pick-up d'un neutron de la couche 1 s [l]. Nous avons entrepris ces expériences sur des noyaux... figure), on observe quelques-uns des niveaux connus de 6Li obtenus par pick-up de ...

Source: Ecole Polytechnique, Centre de mathématiques

Collection: Mathematics

Summary:  715 Neutron scattering at high pressure D. B. McWhan Room 1D-234, Murray Hill, New Jersey 07974, U... diffusion des neutrons et ceux obtenus par diffusion des R.X. en utilisant une source à anode tournante ou... .S.A. Résumé. 2014 Nous présentons les différentes ...

Source: Ecole Polytechnique, Centre de mathématiques

Collection: Mathematics

Summary:  V (Figure 1d). At these accel- erated particle energies, the main modifications to the original [Hua et al... Physics of solar neutron production: Questionable detection of neutrons from the 31 December 2007... V solar neutrons. We discuss the cross sections for neutron ...

Source: Share, Gerald - Department of Astronomy, University of Maryland at College Park

Collection: Physics

Summary:  of these calculations was to use a state-of-the-art ad- vanced nodal diffusion code, which performs coupled neutronic... Energy 32 (2005) 812­842 817 #12;with mRÃ f;0 ¼ mRf;0;2 þ mRf;0;1 Â D2B2 g þ Ra;2;0 Rrem;0 ; ð4Þ L2 1 ¼ D... mRf;2;0 keff D1 1 À ixbeff ixþk Rrem;0 D2 À ...

Source: Demazière, Christophe - Department of Reactor Physics, Chalmers University of Technology

Collection: Fission and Nuclear Technologies

Summary:  -dependence of the fluctuations of the neutron flux induced by fluctuating properties of the medium in the two-group diffusion... . The neutron noise simulator is based on the diffusion ap- proximation with two energy groups and one group... was recently extended to the calculation of the different ...

Source: Demazière, Christophe - Department of Reactor Physics, Chalmers University of Technology; Pázsit, Imre - Department of Reactor Physics,Chalmers University of Technology

Collection: Fission and Nuclear Technologies

Summary:  -dependence of the fluctuations of the neutron flux induced by fluctuating properties of the medium in the two-group diffusion... ðrÞ nSf;1;0ðrÞ 1 y1 iu þ ltransfer function. The neutron noise simulator is based on the diffusion... of the two-group neutron ...

Source: Demazière, Christophe - Department of Reactor Physics, Chalmers University of Technology

Collection: Fission and Nuclear Technologies

Summary:  of these calculations was to use a state-of-the-art ad- vanced nodal diffusion code, which performs coupled neutronic... be seen as a superposition of two terms: 1 1d/1ðr; xÞ d/2ðr; xÞ ¼ ck  d/local  d/global ð13ÞðrÞ;ðrÞ þ cl... of the type ``absorber of variable strength'' (or reactor ...

Source: Demazière, Christophe - Department of Reactor Physics, Chalmers University of Technology

Collection: Fission and Nuclear Technologies

Summary:  with a fog-like layer (denoted by dotted lines parallel to the limb in Figure 1(d)), which is believed... NEUTRON AND ELECTROMAGNETIC EMISSIONS DURING THE 1990 MAY 24 SOLAR FLARE L. G. KOCHAROV,* JEONGWOO... revised form 15 July, 1994) Abstract. In this paper, we are primarilyconcerned with the solar neutron

Source: Usoskin, Ilya G. - Sodankyla Geophysical Observatory, University of Oulu

Collection: Geosciences ; Physics

Summary:  X105 y) Silicon burning (1 d) Carbon burning (600 y) Neon burning (1 y) Oxygen burning (6 mon) Time... and neutrons. Proton: Nucleus of the hydrogen atom; carries same amount of charge (~1.6x10-19 C) as electron... =1/2 . (Planck constant ~ 1x10-34 J·sec) Neutron: discovered by James Chadwick in 1933; does ...

Source: 

Collection: Physics

Summary:  %, respectively. The Fig. 4. The multi-deuctor powder diffractometer at DR 3, Risø. Twenty detectors D1...D20... support the occurren- ce of fusion processes in such systems by x-ray and neutron powder diffraction... experiment«. However, no neutrons above the background level were ob- served in spite of ...

Source: Risø National Laboratory

Collection: Multidisciplinary Databases and Resources

Summary:  214O222S2Fe1) D-dry powder 0 0.12 0.88 0.88 D-hyd powder 0.35 g/g 313 0.16 0.84 0.88 D-hyd powder 0... c Forschungszentrum Jülich GmbH, Institut für Festkörperforschung, Jülich Center for Neutron Science... 2009 Accepted 30 June 2009 Available online 10 July 2009 Keywords: Neutron scattering Polarization

Source: Doster, Wolfgang - Physik Department, Technische Universität München

Collection: Physics ; Biology and Medicine

Summary:  V ions using a fully loaded target i.e., Ti1D2 . The neutrons are detected using a Health Physics Instru... Development of a compact neutron source based on field ionization processes Arun Persaud,a Ian... nanoemitters to ionize deuterium atoms for the generation of neutrons in a ...

Source: Javey, Ali - Department of Electrical Engineering and Computer Sciences, University of California at Berkeley

Collection: Materials Science ; Physics

Summary:  With Neutrons at NIST Volume 106 Number 1 January­February 2001 R. L. Cappelletti, C. J. Glinka, S. Krueger, R... . An increasingly important component of this effort is carried out at the NIST Center for Neutron Research (NCNR... : activation-analysis; bio-mem- brane; condensed-matter; diffraction; neutron; materials; polymer; ...

Source: Lynn, Jeffrey W. - Center for Neutron Research, National Institute of Standards and Technology

Collection: Materials Science

Summary:  Table Bag Proton Beads Neutron Beads Element Isotope A-1 A-2 B-1 B-2 C-1 C-2 D-1 D-2 Conclusion Bag Set... . The nucleus changes by losing two protons and two neutrons. To keep the atom electrically neutral two... electrons are also emitted. In Beta decay the nucleus changes by having a ...

Source: Weston, Ken - Department of Chemistry and Biochemistry, Florida State University

Collection: Chemistry

Summary:  in 1-d and 2-d confined supercooled water. The alpha relaxation time is measured by Quasi... -Elastic Neutron Scattering (QENS) experiments and the self diffusion constant by Nuclear Magnetic Resonance (NMR... ) experiments. Water is confined in 1-d geometry in ...

Source: Pennycook, Steve - Materials Science and Technology Division, Oak Ridge National Laboratory

Collection: Materials Science

Summary:  deuterium plasma will produce neutrons with 2.45 MeV of energy from the D 1 D ! He3 1 n reaction. Ion... of these clusters. We have conducted high-resolution neutron time-of-flight spectroscopy on these plasmas and show... that they yield fast bursts of nearly monochromatic fusion ...

Source: Ditmire, Todd - Department of Physics, University of Texas at Austin

Collection: Physics

Summary:  ,13 C. d'Uston,14 H. Wa¨nke,4 O. Gasnault,14 D. K. Hamara,1 D. M. Janes,1 R. L. Marcialis,1 S. Maurice... the large H con- tent of the subsurface layer acts as a sink to remove the thermal neutrons that diffuse... . The model calculations of leakage neutrons indicate (1) that these defi- ...

Source: Voèadlo, Lidunka - Department Earth Sciences, University College London

Collection: Chemistry ; Geosciences

Summary:  for 1-D diffusion of xenon and argon (initially at a molar concentration Co and within a volume V... . From these results, a 1-D diffusion experiment was designed and constructed. As shown in the schematic... Xenon diffusion studies with prompt ...

Source: Deinert, Mark - Department of Mechanical Engineering, University of Texas at Austin

Collection: Energy Storage, Conversion and Utilization ; Fission and Nuclear Technologies

Summary:  DESIGN STUDY FOR A SECOND TARGET STATION FOR THE SPALLATION NEUTRON SOURCE SEPTEMBER 2008 #12;#12;SNS... -8 2.1.8 Fundamental Neutron Physics... .................................................................. 3-2 3.1.5 Neutronics Workshop

Source: Controlled Fusion Atomic Data Center (CFADC)

Collection: Plasma Physics and Fusion

Summary:  noise simulator that was able to handle a whole core by modifying an existing static neutron diffusion... -order neutron noise is first presented in the 2-group diffusion approximation. The spatial discretisation scheme... of the neutron noise simulator. 2. First-order ...

Source: Demazière, Christophe - Department of Reactor Physics, Chalmers University of Technology

Collection: Fission and Nuclear Technologies

Summary:  2000 Fax: +44 (0)141 330 5881 Evaluation of Silicon Monolithic APS as a Neutron Detector Dzmitry... Republic Abstract Progress in the development of neutron imaging facilities requires more sophisticated... and advanced tools for high resolution and efficient neutron detection. This paper reports on the evaluation

Source: Glasgow, University of - Department of Physics and Astronomy, Particle Physics Experimental Group

Collection: Physics

Summary:  noise simulator that was able to handle a whole core by modifying an existing static neutron diffusion... -order neutron noise is first presented in the 2-group diffusion approximation. The spatial discretisation scheme... of the neutron noise simulator. 2. First-order ...

Source: Demazière, Christophe - Department of Reactor Physics, Chalmers University of Technology

Collection: Fission and Nuclear Technologies

Summary:  , Ces expériences ont été entreprises pour rechercher si la diffusion inélastique des neutrons de... neutrons inélastiques est symétrique par rapport à 90°. Au contraire, si la diffusion inélastique comporte... diffusion inélastique des neutrons sur l'iode ...

Source: Ecole Polytechnique, Centre de mathématiques

Collection: Mathematics

Summary:  neutrons with h ~ 1d and assuming ,UnBs 4 0 - 9 L O . 1 peV a t a ~ n lo - ~end L+ cm, one can a) d e t e c... la d6polarisation 2 la diffusion de Bragg. Abstract. - The depolarization of neutrons represents... %Fneutron beam and of the parameters M r a.1, ...

Source: Ecole Polytechnique, Centre de mathématiques

Collection: Mathematics

Summary:  from neutron scattering data. The Neutron Sciences Directorate is part of Oak Ridge National Laboratory... REPORT ORNL NEUTRON SCIENCES neutrons.ornl.gov 1 #12;INTRODUCTION 2008 ANNUAL REPORT ORNL NEUTRON... SCIENCES The Next Generation of Materials Research ORNL ...

Source: Controlled Fusion Atomic Data Center (CFADC)

Collection: Plasma Physics and Fusion

Summary:  détente. Le rayon traverse complètement la chambre. 1 D, rayon d'hélium projeté par les neutrons dans la... PREUVES EXPÉRIMENTALES DE L'EXISTENCE DU NEUTRON Par IRÈNE CURIE et F. JOLIOT. Sommaire. 2014 Nous... exposons ici les expériences qui ont conduit à admettre l'existence d'un rayonnement de ...

Source: Ecole Polytechnique, Centre de mathématiques

Collection: Mathematics

Summary:  Abstract. Using a simple stochastic 1D simulation model of the heliosphere we calculate galactic cosmic ray... of the heliospheric modulation strength during the neutron monitor era I.G. Usoskin1 , K. Alanko2 , K. Mursula2 , K... these spectra with the spe- cific yield function of a neutron monitor, we ...

Source: Mursula, Kalevi - Department of Physical Sciences, University of Oulu

Collection: Physics

Summary:  . Gratta, 4 H. Henrikson, 3 J. Kornis, 1 D. Lawrence, 2 K. B. Lee, 3 K. McKinny, 1 L. Miller, 4 V. Novikov... Neutron production by cosmic­ray muons at shallow depth F. Boehm, 3 J. Busenitz, 1 B. Cook, 3 G... , Stanford, California 94305 #Received 23 June 2000; published 12 October 2000# The yield of neutrons

Source: Gratta, Giorgio - Kavli Institute for Particle Astrophysics and Cosmology SLAC & Department of Physics, Stanford University

Collection: Physics

Summary:  . Gratta,4 H. Henrikson,3 J. Kornis,1 D. Lawrence,2 K. B. Lee,3 K. McKinny,1 L. Miller,4 V. Novikov,3 A... Neutron production by cosmic-ray muons at shallow depth F. Boehm,3 J. Busenitz,1 B. Cook,3 G... Received 23 June 2000; published 12 October 2000 The yield of neutrons produced by cosmic ray muons

Source: Gratta, Giorgio - Kavli Institute for Particle Astrophysics and Cosmology SLAC & Department of Physics, Stanford University; Piepke, Andreas G. - Department of Physics and Astronomy, University of Alabama

Collection: Physics

Summary:  P (nC, xC), so as to protons do not diffuse into neutron matter. In neu- tron star matter separation... Vol. 38 (2007) ACTA PHYSICA POLONICA B No 4 NEUTRON AND PROTON SEPARATION IN DENSE NEUTRON STAR... symmetry energy implies proton­neutron sepa- ration instability in dense nuclear ...

Source: Magiera, Andrzej - Instytut Fizyki, Uniwersytet Jagiellonski

Collection: Physics

Summary:  neutrons avec la matière ............................................................ 25 2.2.1 Diffusion... neutrinos solaires, etc.... Dans la recherche de matière noire, la diffusion élastique des neutrons de... diffusion inélastique. Dans les laboratoires souterrains, les ...

Source: Paris-Sud XI, Université de - Institut d'Optique, Laboratoire Charles-Fabry, Groupe d'Optique Atomique

Collection: Physics

Summary:  247 Neutron producing target for accelerator based neutron source for NCT V. Belov1 , S. Fadeev1... , Russia Summary Neutron producing targets for novel accelerator based neutron source [1, 2] are presented... Neutron producing target is one of the main elements of proposed accelerator ...

Source: Taskaev, Sergey Yur'evich - Budker Institute of Nuclear Physics

Collection: Plasma Physics and Fusion

Summary:  Edouard LEYMARIE Méthodes de variation de contraste par polarisation nucléaire en diffusion de neutrons... aux petits angles. Observation de domaines de polarisation nucléaire par diffusion de neutrons... diffusion de neutrons aux petits angles et surtout pour ...

Source: Ecole Polytechnique, Centre de mathématiques

Collection: Mathematics

Summary:  fueling source is available in either this case or in that shown in Fig. 1d, a peaked density ohmic H... -mode operation (Fig. 1.d) and that the ITB which is formed at the H- to L-mode transition under these conditions... ) to low confinement (L) mode transition and are characterized by a large increase in the ...

Source: Fiore, Catherine L. - Plasma Science and Fusion Center, Massachusetts Institute of Technology (MIT)

Collection: Plasma Physics and Fusion

Summary:  direction) of the near and far detectors of a neutron tool. Panels on the right are similar 1D plots... Comparison of simulated neutron measurements (1D normalized neutron FSF) across a boundary between two water... the ...

Source: Torres-Verdín, Carlos - Department of Petroleum and Geosystems Engineering, University of Texas at Austin

Collection: Fossil Fuels ; Geosciences

Summary:  de la pile, en diffusant latéralement les neutrons sortant d'un canal, par de la paraffine ou du... ne sont pratiquement plus utilisables. Les émul- sions C 2, E 1, D 1 peuvent être utilisées pour des... NEUTRONS THERMIQUES, ACCOMPAGNÉS DE RAYONS 03B3 Par Mme H. FARAGGI, Mlle A. ...

Source: Ecole Polytechnique, Centre de mathématiques

Collection: Mathematics

Summary:  .14 Bias and pull for neutrons from 2D data fit with 1D pdfs . . . . . . . . . . 177 7.15 Fits to energy... neutrons produced by the neu- tral current interaction of 8B solar neutrinos with deuterium. Previously... the potential to distinguish neutrons from backgrounds which are primarily ...

Source: Sudbury Neutrino Observatory

Collection: Physics

Summary:  of the Forbush effect versus the distance. Nishida [6] solved one dimensional (1D) non stationary model without... shock. 1D time-dependent model with an adiabatic cooling was considered by Perko [7] who used a radial... of the worldwide network of neutron monitors. The rigidity spectrum ...

Source: Magiera, Andrzej - Instytut Fizyki, Uniwersytet Jagiellonski

Collection: Physics

Summary:  1008. ÉTUDE DE LA DIFFUSION INÉLASTIQUE DES NEUTRONS DE 800 keV PAR 127I Par MM. J. CABE, M. LAURAT... et P. YVON, Résumé. 2014 Nous montrons l'isotropie de la diffusion inélastique des neutrons de 800 ke... PHYSIQUE TOME 24, NOVEMBRE 1963, 1. Introduction. - Lors d'une diffusion ...

Source: Ecole Polytechnique, Centre de mathématiques

Collection: Mathematics

Summary:  15. The experimental neutron yields are 35% of 1-D yields. The complementary nature... are the profiles from a 1-D simulation at peak neutron pro- duction for a 20 m thick plastic shell with 15 atm... -D values.24 Table I also shows that primary ...

Source: Massachusetts Institute of Technology (MIT), Plasma Science and Fusion Center, High-Energy-Density Physics Group

Collection: Plasma Physics and Fusion ; Physics

Summary:  x-ray cross section H D C O Al Si Fe neutron cross section End of Beam Tube Neutron Flux Fuel Cell... ). This study displays the ability to resolve changes in water content within the membrane and gas diffusion... Hydration by Neutron Imaging · Neutron imaging provides the ability to ...

Source: Salama, Khaled - Department of Electrical, Computer and Systems Engineering, Rensselaer Polytechnic Institute

Collection: Engineering

Summary:  of 1-D ME the simplest but still accurate grouping method may be obtained when the size distribution... and Implantation rate on Cavity Nucleation and Growth during Neutron Irradiation of Fe and EUROFER 97 M. Eldrup, B... Nucleation and Growth during neutron irradiation of Fe and EUROFER 97 Division: ...

Source: Risø National Laboratory

Collection: Multidisciplinary Databases and Resources

Summary:  excit´e dans un ´etat 2+ coupl´e `a un neutron dans l'´etat 1d5/2, conduisant `a un ´etat fondamental 1... ´eaire 1 1.1 Un m´ecanisme de r´eaction : le "Towing Mode" . . . . . . . . . . . . . . . . 1 1.1.1 D... niveau : |GS = |0+ 2s1/2 + |2+ ...

Source: Ecole Polytechnique, Centre de mathématiques

Collection: Mathematics

Summary:  not seem to have been as important to neutron diffusion science as their more conventional time... .6,7 References 1. D. L. Cummings, R. L. Reuben, D. A. Blackburn, Metall. Trans. A 15A, 639 (1984). B... excited to see "Diffusion Waves and Their Uses" on the cover of the August 2000 issue ...

Source: Mandelis, Andreas - Department of Electrical and Computer Engineering, University of Toronto

Collection: Engineering ; Biology and Medicine

Summary:  Quantum size effect and biased diffusion of gravitationally bound neutrons in a rough waveguide R... transport equation and a simplified model of biased scattering-driven diffusion of neutrons between quantum... .Biased diffusion: results 10 V.Exact description of ...

Source: Meyerovich, Alex - Department of Physics, University of Rhode Island

Collection: Physics

Summary:  loaded target (i.e., Ti1D2). The neutrons are detected using a Health Physics In- struments Model 6060... Development of a compact neutron source based on field ionization processes Arun Persaud, Ian Allen... of carbon nanofiber nanoemitters to ionize deuterium atoms for the generation of ...

Source: Lawrence Berkeley National Laboratory, Ion Beam Technology Group

Collection: Plasma Physics and Fusion

Summary:  + . O . (1 D) (6) impliquant l'atome d'oxygène dans ses états fondamental (3 P) et excité (1 D) sont... : 0D/D eS - = (21) Avec : D0=1/ D0 est appelée la dose létale moyenne, c'est la valeur de la dose qui... rapprochant les expressions : p eS - = (23) et 0D/D ...

Source: Ecole Polytechnique, Centre de mathématiques

Collection: Mathematics

Summary:  . As a solvent coordinate rate constant in liquid water, we used ks = b(1/D), where b is an adjustable empirical... is an erroneously large effective proton diffusion coefficient. The neutron scattering experiment measures... by Quasi-Elastic Neutron Scattering Itay Presiado, Jyotsana ...

Source: Controlled Fusion Atomic Data Center (CFADC)

Collection: Plasma Physics and Fusion

Summary:  '´equation (8) s'´ecrit simplement pour chaque fonction propre : 2 lmn + k - 1 L2 c + 1 D Clmn lmn = 0. (9) R... '´energie moyenne lors d'un choc, E est l'´energie du neutron de masse m qui diffuse ´elastiquement sur un noyau de... groupes. `A t = 0, on introduit en r = 0, N0n ...

Source: Ecole Polytechnique, Centre de mathématiques

Collection: Mathematics

Summary:  In the case of a pure diffusive process, De~ is a constant. Here, we observe that the variation of1/D~~ versus... flexions de Bragg, la diffusion des neutrons est quasi-61astique et la fonction assoc14e, S(q, t), d6croit... , France (Received 17 February 1997, accepted 27 May 1997) ...

Source: Ecole Polytechnique, Centre de mathématiques

Collection: Mathematics

Summary:  -Eckart. Nous ´ecrivons Qi 1 = d i , o`u d est le moment dipo- laire ´electrique (EDM) du neutron. Une valeur... diffusion de neutrons placent la meilleure contrainte sur les interactions suppl´ementaires de port´ee entre... milieu optique, on parle de neutrons ...

Source: Ecole Polytechnique, Centre de mathématiques

Collection: Mathematics