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Note: This page contains sample records for the topic "mev g-1cm2 nuclear" 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.


1

Nuclear Resonance Fluorescence Excitations around 2 MeV in U-235 and Pu-239  

DOE Green Energy (OSTI)

A search for nuclear resonance fluorescence excitations in U and Pu within the energy range of 1.0- to 2.5-MeV was performed using a 4-MeV, continuous, bremsstrahlung source at the High Voltage Research Laboratory at the Massachusetts Institute of Technology. Measurements utilizing high purity Ge detectors at back angles identified 9 photopeaks in U-235 and 13 photopeaks in Pu-239 in this energy range, most likely dipole excitations. These resonances provide unique signatures that allow the materials to be non-intrusively detected in a variety of environments including fuel cells, waste drums, vehicles and containers. The presence and properties of these states may prove useful in understanding the nuclear structure of even - odd nuclei.

Bertozzi, William; Caggiano, Joseph A.; Hensley, Walter K.; Johnson, Micah S.; Korbly, Steve; Ledoux, Robert; McNabb, Dennis P.; norman, E. B.; Park, William H.; Warren, Glen A.

2008-10-01T23:59:59.000Z

2

Nuclear interactions of 160 MeV protons stopping in copper: A test of Monte Carlo nuclear models  

Science Conference Proceedings (OSTI)

To estimate the influence of nuclear interactions on dose or biological effect one uses Monte Carlo programs which include nuclear models. We introduce an experimental method to check these models at proton therapy energies. We have measured the distribution of charge deposited by 160 MeV protons stopping in a stack of insulated copper plates. A buildup region ahead of the main peak contains ?20% of the total charge and is entirely due to charged secondaries from inelastic nuclear interactions. The acceptance for charged secondaries is 100%. Therefore the data are a good benchmark for nuclear models. We have simulated the stack using GEANT with two nuclear models.FLUKA agrees fairly well with the measurement but GHEISHA

Bernard Gottschalk; Rachel Platais; Harald Paganetti

1999-01-01T23:59:59.000Z

3

The response of CR-39 nuclear track detector to 1-9 MeV protons  

SciTech Connect

The response of CR-39 nuclear track detector (TasTrak) to protons in the energy range of 0.92-9.28 MeV has been studied. Previous studies of the CR-39 response to protons have been extended by examining the piece-to-piece variability in addition to the effects of etch time and etchant temperature; it is shown that the shape of the CR-39 response curve to protons can vary from piece-to-piece. Effects due to the age of CR-39 have also been studied using 5.5 MeV alpha particles over a 5-year period. Track diameters were found to degrade with the age of the CR-39 itself rather than the age of the tracks, consistent with previous studies utilizing different CR-39 over shorter time periods.

Sinenian, N.; Rosenberg, M. J.; Manuel, M.; McDuffee, S. C.; Casey, D. T.; Zylstra, A. B.; Rinderknecht, H. G.; Gatu Johnson, M.; Seguin, F. H.; Frenje, J. A.; Li, C. K.; Petrasso, R. D. [Plasma Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-0001 (United States)

2011-10-15T23:59:59.000Z

4

Use of the nuclear model code GNASH to calculate cross section data at energies up to 100 MeV  

Science Conference Proceedings (OSTI)

The nuclear theory code GNASH has been used to calculate nuclear data for incident neutrons, protons, and deuterons at energies up to 100 MeV. Several nuclear models and theories are important in the 10--100 MeV energy range, including Hauser-Feshbach statistical theory, spherical and deformed optical model, preequilibrium theory, nuclear level densities, fission theory, and direct reaction theory. In this paper we summarize general features of the models in GNASH and describe the methodology utilized to determine relevant model parameters. We illustrate the significance of several of the models and include comparisons with experimental data for certain target materials that are important in applications.

Young, P.G.; Chadwick, M.B.; Bosoian, M.

1992-12-01T23:59:59.000Z

5

Use of the nuclear model code GNASH to calculate cross section data at energies up to 100 MeV  

Science Conference Proceedings (OSTI)

The nuclear theory code GNASH has been used to calculate nuclear data for incident neutrons, protons, and deuterons at energies up to 100 MeV. Several nuclear models and theories are important in the 10--100 MeV energy range, including Hauser-Feshbach statistical theory, spherical and deformed optical model, preequilibrium theory, nuclear level densities, fission theory, and direct reaction theory. In this paper we summarize general features of the models in GNASH and describe the methodology utilized to determine relevant model parameters. We illustrate the significance of several of the models and include comparisons with experimental data for certain target materials that are important in applications.

Young, P.G.; Chadwick, M.B.; Bosoian, M.

1992-01-01T23:59:59.000Z

6

Nuclear data development and shield design for neutrons below 60 MeV  

DOE Green Energy (OSTI)

A nuclear data library was created for medium-energy-neutron-transport calculations. The 60-group library includes P/sub 5/ cross sections in standard LASL format for H, B, C, N, O, Si, Fe, and W. The 60-group structure was chosen from a sensitivity analysis of a thick iron shield calculated with a 50-MeV deuteron-on-beryllium neutron source spectrum and a 121-group cross-section set. The library combines processed ENDF/B-IV cross-section data below 20 MeV and higher-energy cross-section parameters calculated with the intranuclear-cascade and evaporation model. A 6-group version of the library is used in the design of a shield-collimator unit for fast-neutron radiotherapy. While the shield is specific for the 50-MeV d/sup +/--Be neutron source presently used in cancer therapy at Texas A and M University, the cross sections and methods developed are applicable to the problems of medium-energy-neutron shielding in general. 28 figures, 21 tables, 132 references.

Wilson, W.B.

1978-02-01T23:59:59.000Z

7

Nuclear collisions at several tens of MeV per nucleus  

SciTech Connect

Nuclear beams with energies of several tens of MeV per nucleon will soon be available at a number of research centers around the world. Such beams offer a tool for probing new aspects of nuclear structure and dynamics. As the energy is raised models and concepts developed for the relatively well studied lower energy domain will be pressed to their limits and are likely to grow obsolete as novel phenomena enter the scene. The theory of ordinary damped collisions is considered; the testing of such theories is one important aspect of the research with higher beam energies. Another is the search for truly novel phenomena, and some more speculative material on that aspect are given. 15 references.

Randrup, J.

1979-10-01T23:59:59.000Z

8

On the Search for Nuclear Resonance Fluorescence Signatures of 235U and 238U above 3 MeV  

SciTech Connect

Nuclear resonance fluorescence is a physical process that provides an isotope-specific signature that could be used for the identification and characterization of materials. The technique involves the detection of prompt discrete-energy photons emitted from a sample that is exposed to MeV-energy photons. Potential applications of the technique range from detection of high explosives to characterization of special nuclear materials such as 235U. Pacific Northwest National Laboratory and Passport Systems have collaborated to conduct a pair of measurements to search for a nuclear resonance fluorescence response of 235U above 3 MeV and of 238U above 5 MeV using an 8 g sample of highly enriched uranium and a 90 g sample of depleted uranium. No new signatures were observed. The minimum detectable integrated cross section for 235U is presented.

Warren, Glen A.; Caggiano, Joseph A.; Bertozzi, William; Korbly, Steve; Ledoux, Robert; Park, William H.

2010-02-01T23:59:59.000Z

9

--No Title--  

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

Quantity Value Units 0.00000 Specific gravity ?? g cm-3 Minimum ionization 20.000 MeV g-1cm2 Nuclear collision length inf g cm-2 Nuclear interaction length inf g cm-2...

10

NUCLEAR COLLISIONS AT SEVERAL TENS OF MeV PER NUCLEUS  

E-Print Network (OSTI)

dissipation theorem on low-energy nuclear dynamics has beensame size as the nuclear binding energy. The nuclear systemto the lotal nuclear binding energy. Hence, in principle, it

Randrup, J.

2010-01-01T23:59:59.000Z

11

Excitation functions of proton induced nuclear reactions on natW up to 40 MeV  

E-Print Network (OSTI)

Excitation functions for the production of the 181,182m,182g,183,184g,186Re and 183,184Ta radionuclides from proton bombardment on natural tungsten were measured using the stacked-foil activation technique for the proton energies up to 40 MeV. A new data set has been given for the formation of the investigated radionuclides. Results are in good agreement with the earlier reported experimental data and theoretical calculations based on the ALICE-IPPE code. The thick target integral yields were also deduced from the measured excitation functions. The deduced yield values were compared with the directly measured thick target yield (TTY), and found acceptable agreement. The investigated radionuclide 186Re has remarkable applications in the field of nuclear medicine, whereas the data of 183,184gRe and 183Ta have potential applications in thin layer activation analysis and biomedical tracer studies, respectively.

M. U. Khandake; M. S. Uddin; K. S. Kim; M. W. Lee; Y. S. Lee; G. N. Kim

2007-03-23T23:59:59.000Z

12

Determination of the cross sections of (n,2n), (n,gamma) nuclear reactions on germanium isotopes at the energy of neutrons 13.96 MeV  

E-Print Network (OSTI)

The cross sections of 70Ge(n,2n)69Ge, 72Ge(n,2n)71Ge, 76Ge(n,gamma)77(g+0.21m)Ge, 76Ge(n,2n)75Ge nuclear reactions were measured at the energy of neutrons 13.96(6) MeV by activation method with gamma-ray and X-ray spectra studies.

S. V. Begun; O. G. Druzheruchenko; O. O. Pupirina; V. K. Tarakanov

2007-01-23T23:59:59.000Z

13

--No Title--  

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

g mole-1 Density 7.18 g cm-3 Mean excitation energy 257.0 eV Minimum ionization 1.456 MeV g-1cm2 10.46 MeV cm-1 Nuclear collision length 80.3 g cm-2 11.19 cm Nuclear...

14

--No Title--  

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

Mix D wax Quantity Value Units Value Units 0.56479 Density 0.990 g cm-3 Mean excitation energy 60.9 eV Minimum ionization 2.048 MeV g-1cm2 2.027 MeV cm-1 Nuclear collision...

15

--No Title--  

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

Compact bone (ICRU) Quantity Value Units Value Units 0.53010 Density 1.85 g cm-3 Mean excitation energy 91.9 eV Minimum ionization 1.849 MeV g-1cm2 3.421 MeV cm-1 Nuclear...

16

--No Title--  

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

Benzene C6H6 Quantity Value Units Value Units 0.53769 Density 0.879 g cm-3 Mean excitation energy 63.4 eV Minimum ionization 1.951 MeV g-1cm2 1.715 MeV cm-1 Nuclear collision...

17

--No Title--  

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

MgCO3 Quantity Value Units Value Units 0.49814 Density 2.96 g cm-3 Mean excitation energy 118.0 eV Minimum ionization 1.704 MeV g-1cm2 5.040 MeV cm-1 Nuclear collision length...

18

--No Title--  

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

MgB4O7 Quantity Value Units Value Units 0.49014 Density 2.53 g cm-3 Mean excitation energy 108.3 eV Minimum ionization 1.692 MeV g-1cm2 4.282 MeV cm-1 Nuclear collision...

19

--No Title--  

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

CaO) Quantity Value Units Value Units 0.49929 Density 3.30 g cm-3 Mean excitation energy 176.1 eV Minimum ionization 1.650 MeV g-1cm2 5.445 MeV cm-1 Nuclear collision length...

20

--No Title--  

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

CdWO4) Quantity Value Units Value Units 0.42747 Density 7.90 g cm-3 Mean excitation energy 468.3 eV Minimum ionization 1.280 MeV g-1cm2 10.12 MeV cm-1 Nuclear collision...

Note: This page contains sample records for the topic "mev g-1cm2 nuclear" 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

--No Title--  

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

Quantity Value Units Value Units 0.48585 Density 1.48 g cm-3 Mean excitation energy 156.0 eV Minimum ionization 1.645 MeV g-1cm2 2.440 MeV cm-1 Nuclear collision length 71.6...

22

--No Title--  

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

B2O3) Quantity Value Units Value Units 0.49839 Density 1.81 g cm-3 Mean excitation energy 99.6 eV Minimum ionization 1.742 MeV g-1cm2 3.157 MeV cm-1 Nuclear collision length...

23

--No Title--  

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

BaSO4 Quantity Value Units Value Units 0.44561 Density 4.50 g cm-3 Mean excitation energy 285.7 eV Minimum ionization 1.406 MeV g-1cm2 6.329 MeV cm-1 Nuclear collision length...

24

--No Title--  

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

CaWO4) Quantity Value Units Value Units 0.43761 Density 6.06 g cm-3 Mean excitation energy 395.0 eV Minimum ionization 1.336 MeV g-1cm2 8.101 MeV cm-1 Nuclear collision...

25

--No Title--  

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

Li2O Quantity Value Units Value Units 0.46952 Density 2.01 g cm-3 Mean excitation energy 73.6 eV Minimum ionization 1.669 MeV g-1cm2 3.361 MeV cm-1 Nuclear collision length...

26

--No Title--  

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

CaCO3) Quantity Value Units Value Units 0.49955 Density 2.80 g cm-3 Mean excitation energy 136.4 eV Minimum ionization 1.686 MeV g-1cm2 4.721 MeV cm-1 Nuclear collision...

27

--No Title--  

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

glass Quantity Value Units Value Units 0.42101 Density 6.22 g cm-3 Mean excitation energy 526.4 eV Minimum ionization 1.255 MeV g-1cm2 7.808 MeV cm-1 Nuclear collision length...

28

--No Title--  

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

CsF) Quantity Value Units Value Units 0.42132 Density 4.11 g cm-3 Mean excitation energy 440.7 eV Minimum ionization 1.286 MeV g-1cm2 5.292 MeV cm-1 Nuclear collision length...

29

--No Title--  

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

Li2B4O7 Quantity Value Units Value Units 0.48487 Density 2.44 g cm-3 Mean excitation energy 94.6 eV Minimum ionization 1.688 MeV g-1cm2 4.119 MeV cm-1 Nuclear collision...

30

--No Title--  

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

MgO Quantity Value Units Value Units 0.49622 Density 3.58 g cm-3 Mean excitation energy 143.8 eV Minimum ionization 1.674 MeV g-1cm2 5.991 MeV cm-1 Nuclear collision length...

31

--No Title--  

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

(CaSO4) Quantity Value Units Value Units 0.49950 Density 2.96 g cm-3 Mean excitation energy 152.3 eV Minimum ionization 1.673 MeV g-1cm2 4.952 MeV cm-1 Nuclear collision...

32

--No Title--  

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

PbO) Quantity Value Units Value Units 0.40323 Density 9.53 g cm-3 Mean excitation energy 766.7 eV Minimum ionization 1.155 MeV g-1cm2 11.01 MeV cm-1 Nuclear collision length...

33

--No Title--  

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

La2O2S Quantity Value Units Value Units 0.42706 Density 5.86 g cm-3 Mean excitation energy 421.2 eV Minimum ionization 1.301 MeV g-1cm2 7.624 MeV cm-1 Nuclear collision...

34

--No Title--  

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

(C10H16O) Quantity Value Units Value Units 0.55179 Density 1.10 g cm-3 Mean excitation energy 63.2 eV Minimum ionization 1.993 MeV g-1cm2 2.192 MeV cm-1 Nuclear collision...

35

--No Title--  

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

CaF2) Quantity Value Units Value Units 0.49670 Density 3.18 g cm-3 Mean excitation energy 166.0 eV Minimum ionization 1.655 MeV g-1cm2 5.263 MeV cm-1 Nuclear collision length...

36

--No Title--  

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

(CH3OH) Quantity Value Units Value Units 0.56176 Density 0.791 g cm-3 Mean excitation energy 67.6 eV Minimum ionization 2.038 MeV g-1cm2 1.613 MeV cm-1 Nuclear collision...

37

--No Title--  

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

LiI) Quantity Value Units Value Units 0.41939 Density 3.49 g cm-3 Mean excitation energy 485.1 eV Minimum ionization 1.272 MeV g-1cm2 4.445 MeV cm-1 Nuclear collision length...

38

--No Title--  

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

sucrose Quantity Value Units Value Units 0.54828 Density 1.11 g cm-3 Mean excitation energy 74.3 eV Minimum ionization 1.964 MeV g-1cm2 2.180 MeV cm-1 Nuclear collision...

39

--No Title--  

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

FeO) Quantity Value Units Value Units 0.47323 Density 5.70 g cm-3 Mean excitation energy 248.6 eV Minimum ionization 1.503 MeV g-1cm2 8.567 MeV cm-1 Nuclear collision length...

40

--No Title--  

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

MgF2 Quantity Value Units Value Units 0.48153 Density 3.00 g cm-3 Mean excitation energy 134.3 eV Minimum ionization 1.640 MeV g-1cm2 4.920 MeV cm-1 Nuclear collision length...

Note: This page contains sample records for the topic "mev g-1cm2 nuclear" 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

--No Title--  

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

BeO) Quantity Value Units Value Units 0.47979 Density 3.01 g cm-3 Mean excitation energy 93.2 eV Minimum ionization 1.665 MeV g-1cm2 5.012 MeV cm-1 Nuclear collision length...

42

--No Title--  

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

(CH3CHCH3) Quantity Value Units Value Units 0.55097 Density 0.790 g cm-3 Mean excitation energy 64.2 eV Minimum ionization 2.003 MeV g-1cm2 1.582 MeV cm-1 Nuclear collision...

43

Direct Nuclear Reactions in Lithium-Lithium Systems: 7Li+7Li at Elab = 2 - 16 MeV  

E-Print Network (OSTI)

Angular distributions of 7Li(7Li,t), (7Li,alpha) and (7Li,6He) reactions were measured for laboratory energies from 2 - 16 MeV. Exact finite range DWBA analyses were performed with the aim to identify contributions of direct processes and to investigate the applicability of DWBA to such few nucleon systems. It turned out that DWBA can be successfully applied to estimate differential and total cross sections of direct transfer processes in 7Li+7Li interaction. The direct mechanism was found to play a dominant role in most of these reactions but significant contributions of other, strongly energy dependent processes were also established. It is suggested that these processes might be due to isolated resonances superimposed on the backround of statistical fluctuations arising from interference of compound nucleus and direct transfer contributions.

P. Rosenthal; H. Freiesleben; B. Gehrmann; I. Gotzhein; K. W. Potthast; B. Kamys; Z. Rudy

2008-01-15T23:59:59.000Z

44

--No Title--  

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

Dubnium (Db) Quantity Value Units Atomic number 105 Atomic mass 268.125(4) g mole-1 Density ?? g cm-3 Mean excitation energy 1061.0 eV Minimum ionization 1.088 MeV g-1cm2 Nuclear...

45

--No Title--  

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

Bohrium (Bh) Quantity Value Units Atomic number 107 Atomic mass 270.134(4) g mole-1 Density ?? g cm-3 Mean excitation energy 1087.0 eV Minimum ionization 1.097 MeV g-1cm2 Nuclear...

46

Proton-Proton Scattering at 105 Mev and 75 Mev  

DOE R&D Accomplishments (OSTI)

The scattering of protons by protons provides an important method for studying the nature of nuclear forces. Recent proton-proton scattering experiments at energies as high as thirty Mev{sup 1} have failed to show any appreciable contribution to the cross section from higher angular momentum states, but it is necessary to bring in tensor forces to explain the magnitude of the observed cross section.

Birge, R. W.; Kruse, U. E.; Ramsey, N. F.

1951-01-31T23:59:59.000Z

47

Tables and graphs of photon-interaction cross sections from 0. 1 keV to 100 MeV derived from the LLL Evaluated-Nuclear-Data Library  

SciTech Connect

Energy-dependent evaluated photon interaction cross sections and related parameters are presented for elements H through Cf (Z = 1 to 98). Data are given over the energy range from 0.1 keV to 100 MeV. The related parameters include form factors and average energy deposits per collision (with and without fluorescence). Fluorescence information is given for all atomic shells that can emit a photon with a kinetic energy of 0.1 keV or more. In addition, the following macroscopic properties are given: total mean free path and energy deposit per centimeter. This information is derived from the Livermore Evaluated-Nuclear-Data Library (ENDL) as of October 1978

Plechaty, E.F.; Cullen, D.E.; Howerton, R.J.

1978-12-07T23:59:59.000Z

48

Nuclear data evaluation for sup 2 sup 3 sup 8 Pu, sup 2 sup 3 sup 9 Pu, sup 2 sup 4 sup 0 Pu, sup 2 sup 4 sup 1 Pu and sup 2 sup 4 sup 2 Pu irradiated by neutrons and protons at the energies up to 250 MeV  

E-Print Network (OSTI)

The evaluation of nuclear data for plutonium isotopes with atomic mass number from 238 to 242 has been performed. Neutron data were obtained at the energies from 20 to 250 MeV and combined with JENDL-3.3 data at 20 MeV. Evaluation of the proton data has been done from 1 to 250 MeV. The coupled channel optical model was used to obtain angular distributions for elastic and inelastic scattering and transmission coefficients. Pre-equilibrium exciton model and Hauser-Feshbach statistical model were used to describe neutron and charged particles emission from the excited nuclei. These evaluation is the first work for producing the full set of evaluated file up to 250 MeV for plutonium isotopes.

Konobeyev, A Y; Iwamoto, O

2002-01-01T23:59:59.000Z

49

Nuclear Structure and Nuclear Reactions | Argonne Leadership...  

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

value of 92.16 MeV and the point rms radius is 2.35 fm vs 2.33 from experiment. Nuclear Structure and Nuclear Reactions PI Name: James Vary PI Email: jvary@iastate.edu...

50

Single event upsets calculated from new ENDF/B-VI proton and neutron data up to 150 MeV  

SciTech Connect

Single-event upsets (SEU) in microelectronics are calculated from newly-developed silicon nuclear reaction recoil data that extend up to 150 MeV, for incident protons and neutrons. Calculated SEU cross sections are compared with measured data.

Chadwick, M.B. [Los Alamos National Lab., NM (United States). Theoretical Div.; Normand, E. [Boeing Military Aircraft and Missile Systems, Seattle, WA (United States)

1999-06-01T23:59:59.000Z

51

Calculation of /sup 59/Co neutron cross sections between 3 and 50 MeV  

SciTech Connect

Knowledge of the /sup 59/Co(n,p), (n,..cap alpha..), and (n,xn) cross sections up to 50 MeV are necessary to satisfy priority dosimetry data needs of the FMIT facility. Since experimental data extend only to 25 MeV in the case of (n,xn) reactions (and lower energies for the others), these cross sections as well as those from competing reactions were calculated for neutron energies between 3 and 50 MeV. Neutron optical parameters were determined that were valid from several hundreds of keV to 50 MeV. Other parameters were determined or verified through analysis of various experimental data types. A basis for complete and consistent nuclear model calculations of n + /sup 59/Co reactions was thus provided. 9 figures, 1 table.

Arthur, E.D.; Young, P.G.; Matthes, W.K.

1980-01-01T23:59:59.000Z

52

TABULATED DIFFERENTIAL NEUTRON CROSS SECTIONS. PART III, VOLUME 1, 0-15 MEV  

DOE Green Energy (OSTI)

Tables are presented of experimental differential neutron cross sections for the elastic scattering of neutrons by nuclei in the energy range of 0 to 15 Mev. Nuclear reactions induced by neutrons are also included, particularly those that are significant for reactor-type calculations. The tables include nuclei from H to Pu. (D.L.C.)

Howerton, R.J.

1961-01-01T23:59:59.000Z

53

Argonne hosting Modeling, Experimentation and Validation (MeV...  

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

Nuclear Safety Materials Disposition Decontamination & Decommissioning Nuclear Criticality Safety Nuclear Data Program Nuclear Waste Form Modeling Departments Engineering...

54

Nuclear Lattice Simulations with EFT  

E-Print Network (OSTI)

This proceedings article is a summary of results from work done in collaboration with Bugra Borasoy and Thomas Schaefer. We study nuclear and neutron matter by combining chiral effective field theory with non-perturbative lattice methods. We present results for hot neutron matter at temperatures 20 to 40 MeV and densities below twice nuclear matter density.

Dean Lee

2004-08-17T23:59:59.000Z

55

Dynamics of lattice damage accumulation for MeV ions in silicon  

SciTech Connect

Although the domination of electronic stopping over nuclear stopping may be regarded as an important practical advantage for high energy (MeV) ion processing, exact knowledge of the doping introduced into the active regions as well as of the process-associated defects and their thermal stability is essential for an understanding of device performance. In the present work we review that the results of our recent investigations into lattice damage accumulation in single crystal Si resulting from high energy ion implantation in the implantation temperature range between liquid nitrogen temperature and 200{degrees}C. The ion species used were 1 MeV O{sup +}, 1.25 MeV Si{sup +} and 4.8 MeV Er{sup +}. Ion implantation was carried out using virgin Si as well as Si containing pre-existing damage. The lattice damage was studied using Rutherford backscattering/channeling spectrometry and cross-sectional transmission electron microscopy. The experimental results are correlated with the predictions of the model of Hecking and Te Kaat. The temperature dependence of the damage accumulation in the virgin Si suggests that the annihilation of simple defects via intra-cascade and inter-cascade recombination processes is controlled mainly by the T, while the nucleation of defect clusters during implantation appears to be influenced by spatial proximity effects related to the deposited energy density. Finally, the dynamics of damage accumulation is shown to be strongly influenced by the pre-existing damage structure.

Golanski, A. (Centre National d'Etudes des Telecommunications (CNET), 38 - Meylan (France)); Grob, A.; Grob, J.J. (Strasbourg-1 Univ., 67 (France). Centre de Recherches Nucleaires); Holland, O.W.; Pennycook, S.J.; White, C.W. (Oak Ridge National Lab., TN (USA))

1991-01-01T23:59:59.000Z

56

--No Title--  

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

(CF2Cl2) Quantity Value Units Value Units 0.47969 Specific gravity (20 C, 1 atm) 1.12 g cm-3 Mean excitation energy 143.0 eV Minimum ionization 1.645 MeV g-1cm2 1.843 MeV...

57

--No Title--  

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

(CF3Cl) Quantity Value Units Value Units 0.47966 Specific gravity (20 C, 1 atm) 0.950 g cm-3 Mean excitation energy 126.6 eV Minimum ionization 1.668 MeV g-1cm2 1.584 MeV...

58

--No Title--  

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

B1 (CF3Br) Quantity Value Units Value Units 0.45665 Specific gravity (20 C, 1 atm) 1.50 g cm-3 Mean excitation energy 210.5 eV Minimum ionization 1.513 MeV g-1cm2 2.270 MeV...

59

--No Title--  

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

I1 C-F3I Quantity Value Units Value Units 0.43997 Specific gravity (20 C, 1 atm) 1.80 g cm-3 Mean excitation energy 293.5 eV Minimum ionization 1.406 MeV g-1cm2 2.531 MeV...

60

--No Title--  

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

(type 6, 66) CH(CH2)5NOn Quantity Value Units Value Units 0.54790 Density 1.18 g cm-3 Mean excitation energy 63.9 eV Minimum ionization 1.973 MeV g-1cm2 2.328 MeV cm-1...

Note: This page contains sample records for the topic "mev g-1cm2 nuclear" 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

Inclusive scattering of 500-MeV pions from carbon  

SciTech Connect

Inclusive double-differential cross sections for 500-MeV pions are presented for [ital C]([pi][sup [plus minus

Zumbro, J.D.; Morris, C.L.; McGill, J.A.; Seestrom, S.J.; Whitton, R.M.; Edwards, C.M.; Williams, A.L.; Braunstein, M.R.; Kohler, M.D.; Kriss, B.J.; Hoibraten, S.; Peterson, R.J.; Ouyang, J.; Wise, J.E.; Gibbs, W.R. (MIT-Bates Linear Accelerator Center, Middleton, Massachusetts 01949 (United States) Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States) University of Minnesota, Minneapolis, Minnesota 55455 (United States) University of Texas at Austin, Austin, Texas 78172 (United States) University of Colorado, Boulder, Colorado 80309 (United States) New Mexico State University, Las Cruces, New Mexico 88003 (United States))

1993-09-20T23:59:59.000Z

62

Cross sections from proton irradiation of thorium at 800 MeV  

E-Print Network (OSTI)

Nuclear formation cross sections are reported for 65 nuclides produced from 800-MeV proton irradiation of thorium foils. These data are useful as benchmarks for computational predictions in the ongoing process of theoretical code development and also to the design of spallation-based radioisotope production currently being considered for multiple radiotherapeutic pharmaceutical agents. Measured data are compared with the predictions of three MCNP6 event generators and used to evaluate the potential for 800-MeV productions of radioisotopes of interest for medical radiotherapy. In only a few instances code predictions are discrepant from measured values by more than a factor of two, demonstrating satisfactory predictive power across a large mass range. Similarly, agreement between measurements presented here and those previously reported is good, lending credibility to predictions of target yields and radioimpurities for high-energy accelerator-produced radionuclides.

Jonathan W. Engle; Stepan G. Mashnik; John W. Weidner; Laura E. Wolfsberg; Michael E. Fassbender; Kevin Jackman; Aaron Couture; Leo J. Bitteker; John L. Ullmann; Mark S. Gulley; Chandra Pillai; Kevin D. John; Eva R. Birnbaum; Francois M. Nortier

2013-05-28T23:59:59.000Z

63

Examining 239Pu and 240Pu Nuclear Resonance Fluorescence Measurements on Spent Fuel for Nuclear Safeguards  

E-Print Network (OSTI)

resonance fluorescence in 240 Pu,” Submitted to Phys. Rev.near 2 MeV in 235 U and 239 Pu,” Phys. Rev. C 041601(R) (Examining Pu and Pu Nuclear Resonance Fluorescence

Quiter, Brian

2013-01-01T23:59:59.000Z

64

MeV and all that  

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

Units in Particle Physics or: "What GeVs?" Units in Particle Physics or: "What GeVs?" Conservation Laws - Data Analysis Using Graphs - Histograms - Units or Vectors in Particle Physics Read a little about particle physics, and soon you'll see some units that aren't quite MKS . . . or cgs either. These odd units are all based on the electron-volt (eV) which itself comes from the simple insight that a single electron accelerated by a potential difference of 1 volt will have a discreet amount of energy, 1 eV = (1.609 x 10-19 C)(1 J/C) = 1.609 x 10-19 J. Take a look: To make matters more complicated, we can make multiples of 1 eV: 1 keV = 103 eV 1 MeV = 106 eV 1 GeV = 109 eV and 1 TeV = 1012 eV (hence the Tevatron) It gets better, though. Energy units have dimensions of (mass)(length)2/(time)2. Divide that by the dimensions of velocity,

65

Neutron total and scattering cross sections of /sup 6/Li in the few MeV region  

Science Conference Proceedings (OSTI)

Neutron total cross sections of /sup 6/Li are measured from approx. 0.5 to approx. 4.8 MeV at intervals of approx. 10 scattering angles and at incident-neutron intervals of approx.< 100 keV. Neutron differential inelastic-scattering cross sections are measured in the incident-energy range 3.5 to 4.0 MeV. The experimental results are extended to lower energies using measured neutron total cross sections recently reported elsewhere by the authors. The composite experimental data (total cross sections from 0.1 to 4.8 MeV and scattering cross sections from 0.22 to 4.0 MeV) are interpreted in terms of a simple two-level R-matrix model which describes the observed cross sections and implies the reaction cross section in unobserved channels; notably the (n;..cap alpha..)t reaction (Q = 4.783 MeV). The experimental and calculational results are compared with previously reported results as summarized in the ENDF/B-V evaluated nuclear data file.

Smith, A.; Guenther, P.; Whalen, J.

1980-02-01T23:59:59.000Z

66

Overview of Antikaon-Nuclear Theory and Phenomenology  

E-Print Network (OSTI)

Experimental evidence for antikaon-nuclear quasibound states is briefly reviewed. Theoretical and phenomenological arguments for and against deep antikaon-nucleus potentials which might allow for narrow quasibound states are reviewed, with recent calculations suggesting widths larger than 100 MeV for binding energy smaller than 100 MeV. Results of RMF calculations that provide a lower limit of 50+/-10 MeV for the width of deeply bound states are discussed.

Gal, Avraham

2007-01-01T23:59:59.000Z

67

Parity nonconservation in proton-water scattering at 800 MeV  

DOE Green Energy (OSTI)

A search has been made for parity nonconservation in the scattering of 800 MeV polarized protons from an unpolarized water target. The result is for the longitudinal asymmetry, A/sub L/ = +(6.6 +- 3.2) x 10/sup -7/. Control runs with Pb, using a thickness which gave equivalent beam broadening from Coulomb multiple scattering, but a factor of ten less nuclear interactions than the water target, gave A/sub L/ = -(0.5 +- 6.0) x 10/sup -7/.

Nagle, D.E.; Bowman, J.D.; Carlini, R.; Mischke, R.E.; Frauenfelder, H.; Harper, R.W.; Yuan, V.; McDonald, A.B.; Talaga, R.

1982-01-01T23:59:59.000Z

68

RADIATION DAMAGE TO BSCCO-2223 FROM 50 MEV PROTONS  

E-Print Network (OSTI)

B. and Gupta, R. , “Radiation Resistant Magnets for the RIARADIATION DAMAGE TO BSCCO-2223 FROM 50 MEV PROTONS A. F.HTS materials in high radiation environments requires that

Zeller, A.F.; Ronningen, R.M.; Godeke, A.; Heilbronn, L.H.; McMahan-Norris, P.; Gupta, R.

2007-01-01T23:59:59.000Z

69

$pi$$sup +$-p SCATTERING AT 600 Mev (thesis)  

DOE Green Energy (OSTI)

The Berkeley 15-inch hydrogen bubble chamber was used at the Bevatron to investigate pi /sup +/-p interactions at 600 Mev. Seventeen hundred and thirty- eight good events please delete abstract 28156

Newcomb, P.C.A.

1963-01-01T23:59:59.000Z

70

Production of 14 MeV neutrons by heavy ions  

SciTech Connect

This invention relates to a neutron generator and a method for the production of 14 MeV neutrons. Heavy ions are accelerated to impinge upon a target mixture of deuterium and tritium to produce recoil atoms of deuterium and tritium. These recoil atoms have a sufficient energy such that they interact with other atoms of tritium or deuterium in the target mixture to produce approximately 14 MeV neutrons.

Brugger, Robert M. (Columbia, MO); Miller, Lowell G. (Idaho Falls, ID); Young, Robert C. (Idaho Falls, ID)

1977-01-01T23:59:59.000Z

71

Neutron kerma factors for H, C, N, O, and tissue in the energy range of 20 to 70 MeV  

DOE Green Energy (OSTI)

Calculated kerma factors (kerma per unit fluence) in the energy range of 20 to 70 MeV based on nonelastic charged-particle-production cross-section data obtained from the intranuclear-cascade model of nuclear reactions are given for H, C, N, O, and tissue.

Alsmiller, R.G. Jr.; Barish, J.

1976-12-01T23:59:59.000Z

72

--No Title--  

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

Acetylene (CHCH) Quantity Value Units Value Units 0.53768 Specific gravity (20 C, 1 atm) 1.10E-03 g cm-3 Mean excitation energy 58.2 eV Minimum ionization 2.025 MeV g-1cm2...

73

--No Title--  

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

Methane based) Quantity Value Units Value Units 0.54993 Specific gravity (20 C, 1 atm) 1.06E-03 g cm-3 Mean excitation energy 61.2 eV Minimum ionization 2.062 MeV g-1cm2...

74

--No Title--  

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

Nitrous oxide N2O Quantity Value Units Value Units 0.49985 Specific gravity (20 C, 1 atm) 1.83E-03 g cm-3 Mean excitation energy 84.9 eV Minimum ionization 1.819 MeV g-1cm2...

75

--No Title--  

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B2 (CF2Br2) Quantity Value Units Value Units 0.44901 Specific gravity (20 C, 1 atm) 1.80 g cm-3 Mean excitation energy 284.9 eV Minimum ionization 1.445 MeV g-1cm2 2.601...

76

--No Title--  

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Methane (CH4) Quantity Value Units Value Units 0.62334 Specific gravity (20 C, 1 atm) 6.67E-04 g cm-3 Mean excitation energy 41.7 eV Minimum ionization 2.417 MeV g-1cm2...

77

--No Title--  

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Ethylene (C2H4) Quantity Value Units Value Units 0.57034 Specific gravity (20 C, 1 atm) 1.17E-03 g cm-3 Mean excitation energy 50.7 eV Minimum ionization 2.174 MeV g-1cm2...

78

--No Title--  

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vapor) (H2O) Quantity Value Units Value Units 0.55509 Specific gravity (20 C, 1 atm) 7.56E-04 g cm-3 Mean excitation energy 71.6 eV Minimum ionization 2.052 MeV g-1cm2...

79

--No Title--  

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(Cd) Quantity Value Units Value Units Atomic number 48 Atomic mass 112.411(8) g mole-1 Density 8.65 g cm-3 Mean excitation energy 469.0 eV Minimum ionization 1.277 MeV g-1cm2 11.04...

80

--No Title--  

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Meitnerium (Mt) Quantity Value Units Atomic number 109 Atomic mass 276.151(5) g mole-1 Density ?? g cm-3 Mean excitation energy 1115.0 eV Minimum ionization 1.090 MeV g-1cm2...

Note: This page contains sample records for the topic "mev g-1cm2 nuclear" 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

--No Title--  

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

(Rf) Quantity Value Units Atomic number 104 Atomic mass 267.122(4) g mole-1 Density ?? g cm-3 Mean excitation energy 1047.0 eV Minimum ionization 1.084 MeV g-1cm2...

82

--No Title--  

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(Md) Quantity Value Units Atomic number 101 Atomic mass 258.09843(3) g mole-1 Density ?? g cm-3 Mean excitation energy 1007.0 eV Minimum ionization 1.095 MeV g-1cm2...

83

--No Title--  

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(Cn) Copernicium Quantity Value Units Atomic number 112 Atomic mass 287.(5) g mole-1 Density ?? g cm-3 Mean excitation energy 1156.0 eV Minimum ionization 1.080 MeV g-1cm2...

84

--No Title--  

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Seaborgium (Sg) Quantity Value Units Atomic number 106 Atomic mass 271.133(5) g mole-1 Density ?? g cm-3 Mean excitation energy 1074.0 eV Minimum ionization 1.085 MeV g-1cm2...

85

--No Title--  

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Einsteinium (Es) Quantity Value Units Atomic number 99 Atomic mass 252.0830(4) g mole-1 Density ?? g cm-3 Mean excitation energy 980.0 eV Minimum ionization 1.102 MeV g-1cm2...

86

--No Title--  

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Roentgenium (Rg) Quantity Value Units Atomic number 111 Atomic mass 280.164(5) g mole-1 Density ?? g cm-3 Mean excitation energy 1143.0 eV Minimum ionization 1.091 MeV g-1cm2...

87

--No Title--  

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Astatine (At) Quantity Value Units Atomic number 85 Atomic mass 209.98715(6) g mole-1 Density ?? g cm-3 Mean excitation energy 825.0 eV Minimum ionization 1.160 MeV g-1cm2...

88

--No Title--  

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(Ds) Quantity Value Units Atomic number 110 Atomic mass 281.162(5) g mole-1 Density ?? g cm-3 Mean excitation energy 1129.0 eV Minimum ionization 1.079 MeV g-1cm2...

89

--No Title--  

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Butane (C4H10) Quantity Value Units Value Units 0.59497 Specific gravity (20 C, 1 atm) 2.49E-03 g cm-3 Mean excitation energy 48.3 eV Minimum ionization 2.278 MeV g-1cm2...

90

Nuclear constraints on the EoS and rotating neutron stars  

E-Print Network (OSTI)

In this contribution nuclear constraints on the equation of state for a neutron star are discussed. A combined fit to nuclear masses and charge radii leads to improved values for the symmetry energy and its derivative at nuclear saturation density, $S_{\\rm{v}}= 31$ MeV and $L=68\\pm 8$ MeV. As an application the sensitivity of some properties of rotating supramassive neutron stars on the EoS is discussed.

Dieperink, A E L

2014-01-01T23:59:59.000Z

91

Nuclear medium effects from hadronic atoms  

E-Print Network (OSTI)

The state of the art in the study of pionic, kaonic and Sigmionic atoms, along with the in-medium nuclear interactions deduced for these hadrons, is reviewed. A special emphasis is placed on recent developments in antikaon-nuclear physics, where a strongly attractive density dependent antikaon-nuclear potential of order 150-200 MeV in nuclear matter emerges by fitting K^- atom data. This has interesting repercussions on antikaon quasibound nuclear states, on the composition of strange hadronic matter and on kaon condensation in self bound hadronic systems.

Friedman, E

2011-01-01T23:59:59.000Z

92

Experiments on stochastic cooling of 200 MeV protons  

SciTech Connect

Equipment for the stochastic cooling of 200 MeV protons in the Fermilab cooler ring has been installed and operated. Vertical and longitudinal cooling systems were installed by early 1980 and had successfully operated by May 1980. Traveling-wave structures particularly effective for the sub-relativistic beam velocities were used for the pickup and kicker electrodes.

Lambertson, G.R.; Bisognano, J.; Flood, W.; Kim, K.; Leeman, C.; Leskovar, B.; Lo, C.C.; Main, R.; Reimers, R.; Smith, L.; Staples, J.

1981-03-01T23:59:59.000Z

93

 

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Lung (ICRP) Lung (ICRP) Quantity Value Units Value Units 0.54965 Density 1.05 g cm-3 Mean excitation energy 75.3 eV Minimum ionization 1.970 MeV g-1cm2 2.069 MeV cm-1 Nuclear collision length 58.6 g cm-2 55.85 cm Nuclear interaction length 83.7 g cm-2 79.69 cm Pion collision length 86.1 g cm-2 82.01 cm Pion interaction length 115.6 g cm-2 110.1 cm Radiation length 36.50 g cm-2 34.76 cm Critical energy 78.73 MeV (for e-) 76.63 MeV (for e+) Molière radius 9.83 g cm-2 9.362 cm Plasma energy 21.89 eV Muon critical energy 1031. GeV Composition: Elem Z Atomic frac* Mass frac* H 1 1.00 0.101278 C 6 0.08 0.102310 N 7 0.02 0.028650 O 8 0.47 0.757072 Na 11 0.00 0.001840 Mg 12 0.00 0.000730 P 15 0.00 0.000800 S 16

94

 

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Manganese (Mn) Manganese (Mn) Quantity Value Units Value Units Atomic number 25 Atomic mass 54.938045(5) g mole-1 Density 7.44 g cm-3 Mean excitation energy 272.0 eV Minimum ionization 1.428 MeV g-1cm2 10.62 MeV cm-1 Nuclear collision length 81.4 g cm-2 10.94 cm Nuclear interaction length 131.4 g cm-2 17.67 cm Pion collision length 106.7 g cm-2 14.34 cm Pion interaction length 160.2 g cm-2 21.54 cm Radiation length 14.64 g cm-2 1.968 cm Critical energy 22.59 MeV (for e-) 21.89 MeV (for e+) Molière radius 13.74 g cm-2 1.847 cm Plasma energy 53.02 eV Muon critical energy 358. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries

95

 

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(Cs) (Cs) Quantity Value Units Value Units Atomic number 55 Atomic mass 132.9054519(2) g mole-1 Density 1.87 g cm-3 Mean excitation energy 488.0 eV Minimum ionization 1.254 MeV g-1cm2 2.349 MeV cm-1 Nuclear collision length 101.2 g cm-2 54.01 cm Nuclear interaction length 172.8 g cm-2 92.25 cm Pion collision length 125.3 g cm-2 66.88 cm Pion interaction length 200.2 g cm-2 106.9 cm Radiation length 8.31 g cm-2 4.434 cm Critical energy 11.34 MeV (for e-) 10.97 MeV (for e+) Molière radius 15.53 g cm-2 8.292 cm Plasma energy 25.37 eV Muon critical energy 200. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries

96

 

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Solid carbon dioxide (dry ice; CO2) Solid carbon dioxide (dry ice; CO2) Quantity Value Units Value Units 0.49989 Density 1.56 g cm-3 Mean excitation energy 85.0 eV Minimum ionization 1.787 MeV g-1cm2 2.793 MeV cm-1 Nuclear collision length 60.7 g cm-2 38.86 cm Nuclear interaction length 88.9 g cm-2 56.90 cm Pion collision length 87.9 g cm-2 56.25 cm Pion interaction length 120.8 g cm-2 77.26 cm Radiation length 36.20 g cm-2 23.16 cm Critical energy 69.99 MeV (for e-) 68.11 MeV (for e+) Molière radius 10.97 g cm-2 7.016 cm Plasma energy 25.47 eV Muon critical energy 927. GeV Composition: Elem Z Atomic frac* Mass frac* C 6 2.00 0.272916 O 8 4.00 0.727084 * calculated from mass fraction data. Explanation of some entries

97

 

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Skeletal muscle (ICRP) Skeletal muscle (ICRP) Quantity Value Units Value Units 0.54938 Density 1.04 g cm-3 Mean excitation energy 75.3 eV Minimum ionization 1.970 MeV g-1cm2 2.049 MeV cm-1 Nuclear collision length 58.6 g cm-2 56.38 cm Nuclear interaction length 83.7 g cm-2 80.46 cm Pion collision length 86.1 g cm-2 82.80 cm Pion interaction length 115.6 g cm-2 111.1 cm Radiation length 36.55 g cm-2 35.14 cm Critical energy 78.83 MeV (for e-) 76.73 MeV (for e+) Molière radius 9.83 g cm-2 9.453 cm Plasma energy 21.78 eV Muon critical energy 1032. GeV Composition: Elem Z Atomic frac* Mass frac* H 1 1.00 0.100637 C 6 0.09 0.107830 N 7 0.02 0.027680 O 8 0.47 0.754773 Na 11 0.00 0.000750 Mg 12 0.00 0.000190 P 15 0.00

98

 

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(Y ) (Y ) Quantity Value Units Value Units Atomic number 39 Atomic mass 88.90585(2) g mole-1 Density 4.47 g cm-3 Mean excitation energy 379.0 eV Minimum ionization 1.359 MeV g-1cm2 6.075 MeV cm-1 Nuclear collision length 91.3 g cm-2 20.43 cm Nuclear interaction length 152.2 g cm-2 34.05 cm Pion collision length 116.0 g cm-2 25.96 cm Pion interaction length 180.3 g cm-2 40.34 cm Radiation length 10.41 g cm-2 2.329 cm Critical energy 15.30 MeV (for e-) 14.81 MeV (for e+) Molière radius 14.43 g cm-2 3.228 cm Plasma energy 40.35 eV Muon critical energy 256. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries

99

 

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Cyclohexane (C6H12) Cyclohexane (C6H12) Quantity Value Units Value Units 0.57034 Density 0.779 g cm-3 Mean excitation energy 56.4 eV Minimum ionization 2.087 MeV g-1cm2 1.626 MeV cm-1 Nuclear collision length 56.1 g cm-2 72.04 cm Nuclear interaction length 78.5 g cm-2 100.7 cm Pion collision length 83.7 g cm-2 107.5 cm Pion interaction length 110.4 g cm-2 141.7 cm Radiation length 44.77 g cm-2 57.48 cm Critical energy 102.33 MeV (for e-) 99.67 MeV (for e+) Molière radius 9.28 g cm-2 11.91 cm Plasma energy 19.21 eV Muon critical energy 1287. GeV Composition: Elem Z Atomic frac* Mass frac* H 1 12.00 0.143711 C 6 6.00 0.856289 * calculated from mass fraction data. Explanation of some entries For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT

100

 

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fluoride [PbF2] fluoride [PbF2] Quantity Value Units Value Units 0.40784 Density 7.77 g cm-3 Mean excitation energy 635.4 eV Minimum ionization 1.206 MeV g-1cm2 9.373 MeV cm-1 Nuclear collision length 102.1 g cm-2 13.14 cm Nuclear interaction length 171.7 g cm-2 22.10 cm Pion collision length 127.3 g cm-2 16.38 cm Pion interaction length 201.9 g cm-2 25.98 cm Radiation length 7.28 g cm-2 0.9369 cm Critical energy 9.35 MeV (for e-) 9.04 MeV (for e+) Molière radius 16.50 g cm-2 2.124 cm Plasma energy 51.30 eV Muon critical energy 165. GeV Composition: Elem Z Atomic frac* Mass frac* Pb 82 1.00 0.845035 F 9 2.00 0.154965 * calculated from mass fraction data. Explanation of some entries For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT

Note: This page contains sample records for the topic "mev g-1cm2 nuclear" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

 

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

Curium (Cm) Curium (Cm) Quantity Value Units Value Units Atomic number 96 Atomic mass [247.07035(3)] g mole-1 Density 13.5 g cm-3 Mean excitation energy 939.0 eV Minimum ionization 1.082 MeV g-1cm2 14.61 MeV cm-1 Nuclear collision length 119.9 g cm-2 8.871 cm Nuclear interaction length 211.6 g cm-2 15.66 cm Pion collision length 142.7 g cm-2 10.56 cm Pion interaction length 237.8 g cm-2 17.60 cm Radiation length 5.79 g cm-2 0.4287 cm Critical energy 6.44 MeV (for e-) 6.20 MeV (for e+) Molière radius 19.07 g cm-2 1.411 cm Plasma energy 66.02 eV Muon critical energy 126. GeV Melting point 278.1 K 5.000 C For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT

102

 

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Aluminum oxide (Sapphire, Al2O3) Aluminum oxide (Sapphire, Al2O3) Quantity Value Units Value Units 0.49038 Density 3.97 g cm-3 Mean excitation energy 145.2 eV Minimum ionization 1.647 MeV g-1cm2 6.540 MeV cm-1 Nuclear collision length 65.5 g cm-2 16.49 cm Nuclear interaction length 98.4 g cm-2 24.79 cm Pion collision length 92.1 g cm-2 23.20 cm Pion interaction length 129.3 g cm-2 32.57 cm Radiation length 27.94 g cm-2 7.038 cm Critical energy 50.18 MeV (for e-) 48.74 MeV (for e+) Molière radius 11.81 g cm-2 2.974 cm Plasma energy 40.21 eV Muon critical energy 706. GeV Melting point 2327. K 2054. C Boiling point @ 1 atm 3273. K 3000. C Index of refraction (@ STP, Na D) 1.77 Composition: Elem Z Atomic frac* Mass frac*

103

 

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(Si) (Si) Quantity Value Units Value Units Atomic number 14 Atomic mass 28.0855(3) g mole-1 Density 2.33 g cm-3 Mean excitation energy 173.0 eV Minimum ionization 1.664 MeV g-1cm2 3.876 MeV cm-1 Nuclear collision length 70.2 g cm-2 30.16 cm Nuclear interaction length 108.4 g cm-2 46.52 cm Pion collision length 96.2 g cm-2 41.29 cm Pion interaction length 137.7 g cm-2 59.14 cm Radiation length 21.82 g cm-2 9.370 cm Critical energy 40.19 MeV (for e-) 39.05 MeV (for e+) Molière radius 11.51 g cm-2 4.944 cm Plasma energy 31.05 eV Muon critical energy 582. GeV Melting point 1687. K 1414. C Boiling point @ 1 atm 3538. K 3265. C Index of refraction (@ STP, Na D) 3.95 For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT

104

 

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Argon gas (Ar) Argon gas (Ar) Quantity Value Units Value Units Atomic number 18 Atomic mass 39.948(1) g mole-1 Specific gravity (20° C, 1 atm) 1.66E-03 g cm-3 Mean excitation energy 188.0 eV Minimum ionization 1.519 MeV g-1cm2 2.525E-03 MeV cm-1 Nuclear collision length 75.7 g cm-2 4.557E+04 cm Nuclear interaction length 119.7 g cm-2 7.204E+04 cm Pion collision length 101.3 g cm-2 6.097E+04 cm Pion interaction length 149.0 g cm-2 8.964E+04 cm Radiation length 19.55 g cm-2 1.176E+04 cm Critical energy 38.03 MeV (for e-) 37.06 MeV (for e+) Molière radius 10.90 g cm-2 6559. cm Plasma energy 0.79 eV Muon critical energy 572. GeV Melting point 83.81 K -189.3 C Boiling point @ 1 atm 87.26 K -185.9 C

105

 

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iodide (NaI) iodide (NaI) Quantity Value Units Value Units 0.42697 Density 3.67 g cm-3 Mean excitation energy 452.0 eV Minimum ionization 1.305 MeV g-1cm2 4.785 MeV cm-1 Nuclear collision length 93.1 g cm-2 25.38 cm Nuclear interaction length 154.6 g cm-2 42.16 cm Pion collision length 118.2 g cm-2 32.23 cm Pion interaction length 183.8 g cm-2 50.11 cm Radiation length 9.49 g cm-2 2.588 cm Critical energy 13.37 MeV (for e-) 12.94 MeV (for e+) Molière radius 15.05 g cm-2 4.105 cm Plasma energy 36.06 eV Muon critical energy 228. GeV Melting point 933.2 K 660.0 C Boiling point @ 1 atm 1577. K 1304. C Index of refraction (@ STP, Na D) 1.77 Composition: Elem Z Atomic frac* Mass frac*

106

 

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Propane (C3H8) Propane (C3H8) Quantity Value Units Value Units 0.58962 Specific gravity (20° C, 1 atm) 1.87E-03 g cm-3 Mean excitation energy 47.1 eV Minimum ionization 2.262 MeV g-1cm2 4.226E-03 MeV cm-1 Nuclear collision length 55.3 g cm-2 2.962E+04 cm Nuclear interaction length 76.7 g cm-2 4.106E+04 cm Pion collision length 83.0 g cm-2 4.443E+04 cm Pion interaction length 108.5 g cm-2 5.809E+04 cm Radiation length 45.37 g cm-2 2.429E+04 cm Critical energy 131.58 MeV (for e-) 128.77 MeV (for e+) Molière radius 7.31 g cm-2 3915. cm Plasma energy 0.96 eV Muon critical energy 1558. GeV Melting point 85.52 K -187.6 C Boiling point @ 1 atm 231.0 K -42.10 C Composition: Elem Z Atomic frac* Mass frac*

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fluoride [CeF3] fluoride [CeF3] Quantity Value Units Value Units 0.43123 Density 6.16 g cm-3 Mean excitation energy 348.4 eV Minimum ionization 1.349 MeV g-1cm2 8.311 MeV cm-1 Nuclear collision length 87.9 g cm-2 14.26 cm Nuclear interaction length 142.6 g cm-2 23.15 cm Pion collision length 113.7 g cm-2 18.46 cm Pion interaction length 173.2 g cm-2 28.12 cm Radiation length 10.19 g cm-2 1.654 cm Critical energy 14.63 MeV (for e-) 14.16 MeV (for e+) Molière radius 14.77 g cm-2 2.398 cm Plasma energy 46.97 eV Muon critical energy 241. GeV Composition: Elem Z Atomic frac* Mass frac* Ce 58 1.00 0.710847 F 9 3.00 0.289153 * calculated from mass fraction data. Explanation of some entries For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT

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Photographic emulsion Photographic emulsion Quantity Value Units Value Units 0.45453 Density 3.82 g cm-3 Mean excitation energy 331.0 eV Minimum ionization 1.422 MeV g-1cm2 5.424 MeV cm-1 Nuclear collision length 84.2 g cm-2 22.08 cm Nuclear interaction length 135.1 g cm-2 35.42 cm Pion collision length 110.4 g cm-2 28.95 cm Pion interaction length 166.3 g cm-2 43.60 cm Radiation length 11.33 g cm-2 2.971 cm Critical energy 17.43 MeV (for e-) 16.88 MeV (for e+) Molière radius 13.79 g cm-2 3.614 cm Plasma energy 37.95 eV Muon critical energy 286. GeV Composition: Elem Z Atomic frac* Mass frac* H 1 1.00 0.014100 C 6 0.43 0.072261 N 7 0.10 0.019320 O 8 0.30 0.066101 S 16 0.00 0.001890 Br 35 0.31 0.349103 Ag 47 0.31

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Xylene C8H10 Xylene C8H10 Quantity Value Units Value Units 0.54631 Density 0.870 g cm-3 Mean excitation energy 61.8 eV Minimum ionization 1.986 MeV g-1cm2 1.728 MeV cm-1 Nuclear collision length 57.1 g cm-2 65.66 cm Nuclear interaction length 80.8 g cm-2 92.90 cm Pion collision length 84.6 g cm-2 97.28 cm Pion interaction length 112.8 g cm-2 129.6 cm Radiation length 44.05 g cm-2 50.63 cm Critical energy 95.94 MeV (for e-) 93.43 MeV (for e+) Molière radius 9.74 g cm-2 11.19 cm Plasma energy 19.87 eV Muon critical energy 1214. GeV Composition: Elem Z Atomic frac* Mass frac* H 1 10.00 0.094935 C 6 8.00 0.905065 * calculated from mass fraction data. Explanation of some entries For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT

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chloride (NaCl) chloride (NaCl) Quantity Value Units Value Units 0.55509 Density 2.17 g cm-3 Mean excitation energy 175.3 eV Minimum ionization 1.847 MeV g-1cm2 4.008 MeV cm-1 Nuclear collision length 71.2 g cm-2 32.79 cm Nuclear interaction length 110.1 g cm-2 50.76 cm Pion collision length 97.0 g cm-2 44.71 cm Pion interaction length 139.7 g cm-2 64.36 cm Radiation length 21.91 g cm-2 10.09 cm Critical energy 44.97 MeV (for e-) 43.69 MeV (for e+) Molière radius 10.33 g cm-2 4.760 cm Plasma energy 31.63 eV Muon critical energy 646. GeV Melting point 1075. K 802.0 C Boiling point @ 1 atm 1738. K 1465. C Index of refraction (@ STP, Na D) 1.54 Composition: Elem Z Atomic frac* Mass frac*

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(Ce) (Ce) Quantity Value Units Value Units Atomic number 58 Atomic mass 140.116(1) g mole-1 Density 6.77 g cm-3 Mean excitation energy 523.0 eV Minimum ionization 1.234 MeV g-1cm2 8.353 MeV cm-1 Nuclear collision length 102.6 g cm-2 15.15 cm Nuclear interaction length 175.7 g cm-2 25.96 cm Pion collision length 126.6 g cm-2 18.70 cm Pion interaction length 203.0 g cm-2 29.99 cm Radiation length 7.96 g cm-2 1.175 cm Critical energy 10.40 MeV (for e-) 10.04 MeV (for e+) Molière radius 16.23 g cm-2 2.397 cm Plasma energy 48.24 eV Muon critical energy 185. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries Table of isotopes Warning: may not be current

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oxysulfide (Gd2O2S) oxysulfide (Gd2O2S) Quantity Value Units Value Units 0.42266 Density 7.44 g cm-3 Mean excitation energy 493.3 eV Minimum ionization 1.257 MeV g-1cm2 9.352 MeV cm-1 Nuclear collision length 96.1 g cm-2 12.92 cm Nuclear interaction length 160.1 g cm-2 21.52 cm Pion collision length 121.5 g cm-2 16.33 cm Pion interaction length 190.2 g cm-2 25.57 cm Radiation length 8.49 g cm-2 1.141 cm Critical energy 11.27 MeV (for e-) 10.89 MeV (for e+) Molière radius 15.96 g cm-2 2.146 cm Plasma energy 51.10 eV Muon critical energy 199. GeV Composition: Elem Z Atomic frac* Mass frac* O 8 2.00 0.084528 S 16 1.00 0.084690 Gd 64 2.00 0.830782 * calculated from mass fraction data. Explanation of some entries

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graphite) (C ) graphite) (C ) Quantity Value Units Value Units Atomic number 6 Atomic mass 12.0107(8) g mole-1 Density 2.21 g cm-3 Mean excitation energy 78.0 eV Minimum ionization 1.742 MeV g-1cm2 3.850 MeV cm-1 Nuclear collision length 59.2 g cm-2 26.79 cm Nuclear interaction length 85.8 g cm-2 38.83 cm Pion collision length 86.5 g cm-2 39.12 cm Pion interaction length 117.8 g cm-2 53.30 cm Radiation length 42.70 g cm-2 19.32 cm Critical energy 81.74 MeV (for e-) 79.51 MeV (for e+) Molière radius 11.08 g cm-2 5.012 cm Plasma energy 30.28 eV Muon critical energy 1057. GeV Sublimination temperature (@ 1 atm) 4098. K 3825. C For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT

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fluoride (BaF2) fluoride (BaF2) Quantity Value Units Value Units 0.42207 Density 4.89 g cm-3 Mean excitation energy 375.9 eV Minimum ionization 1.303 MeV g-1cm2 6.374 MeV cm-1 Nuclear collision length 90.8 g cm-2 18.56 cm Nuclear interaction length 149.0 g cm-2 30.46 cm Pion collision length 116.4 g cm-2 23.78 cm Pion interaction length 179.2 g cm-2 36.62 cm Radiation length 9.91 g cm-2 2.026 cm Critical energy 13.78 MeV (for e-) 13.34 MeV (for e+) Molière radius 15.25 g cm-2 3.117 cm Plasma energy 41.41 eV Muon critical energy 233. GeV Melting point 1641. K 1368. C Boiling point @ 1 atm 2533. K 2260. C Index of refraction (@ STP, Na D) 1.47 Composition: Elem Z Atomic frac* Mass frac*

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Neon gas (Ne) Neon gas (Ne) Quantity Value Units Value Units Atomic number 10 Atomic mass 20.1797(6) g mole-1 Specific gravity (20° C, 1 atm) 8.39E-04 g cm-3 Mean excitation energy 137.0 eV Minimum ionization 1.724 MeV g-1cm2 1.446E-03 MeV cm-1 Nuclear collision length 65.7 g cm-2 7.837E+04 cm Nuclear interaction length 99.0 g cm-2 1.181E+05 cm Pion collision length 91.8 g cm-2 1.095E+05 cm Pion interaction length 128.7 g cm-2 1.534E+05 cm Radiation length 28.93 g cm-2 3.450E+04 cm Critical energy 67.02 MeV (for e-) 65.47 MeV (for e+) Molière radius 9.15 g cm-2 1.092E+04 cm Plasma energy 0.59 eV Muon critical energy 907. GeV Melting point 24.56 K -248.6 C Boiling point @ 1 atm 27.07 K -246.1 C

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gas (H2) (H ) gas (H2) (H ) Quantity Value Units Value Units Atomic number 1 Atomic mass 1.00794(7) g mole-1 Specific gravity (20° C, 1 atm) 8.38E-05 g cm-3 Mean excitation energy 19.2 eV Minimum ionization 4.103 MeV g-1cm2 3.437E-04 MeV cm-1 Nuclear collision length 42.8 g cm-2 5.115E+05 cm Nuclear interaction length 52.0 g cm-2 6.209E+05 cm Pion collision length 70.4 g cm-2 8.406E+05 cm Pion interaction length 80.3 g cm-2 9.583E+05 cm Radiation length 63.04 g cm-2 7.527E+05 cm Critical energy 344.80 MeV (for e-) 338.33 MeV (for e+) Molière radius 3.88 g cm-2 4.629E+04 cm Plasma energy 0.26 eV Muon critical energy 3611. GeV Melting point 13.81 K -259.3 C Boiling point @ 1 atm 20.28 K -252.9 C

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Thorium (Th) Thorium (Th) Quantity Value Units Value Units Atomic number 90 Atomic mass [232.03806(2)] g mole-1 Density 11.7 g cm-3 Mean excitation energy 847.0 eV Minimum ionization 1.098 MeV g-1cm2 12.87 MeV cm-1 Nuclear collision length 117.7 g cm-2 10.05 cm Nuclear interaction length 207.3 g cm-2 17.68 cm Pion collision length 140.7 g cm-2 12.01 cm Pion interaction length 233.6 g cm-2 19.93 cm Radiation length 6.07 g cm-2 0.5182 cm Critical energy 6.91 MeV (for e-) 6.66 MeV (for e+) Molière radius 18.64 g cm-2 1.590 cm Plasma energy 61.44 eV Muon critical energy 132. GeV Melting point 1408. K 1135. C Boiling point @ 1 atm 4404. K 4131. C For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT

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ICRP) ICRP) Quantity Value Units Value Units 0.55121 Density 1.00 g cm-3 Mean excitation energy 72.3 eV Minimum ionization 1.982 MeV g-1cm2 1.982 MeV cm-1 Nuclear collision length 58.3 g cm-2 58.28 cm Nuclear interaction length 83.0 g cm-2 82.96 cm Pion collision length 85.8 g cm-2 85.78 cm Pion interaction length 114.9 g cm-2 114.9 cm Radiation length 37.63 g cm-2 37.63 cm Critical energy 81.68 MeV (for e-) 79.51 MeV (for e+) Molière radius 9.77 g cm-2 9.770 cm Plasma energy 21.39 eV Muon critical energy 1064. GeV Composition: Elem Z Atomic frac* Mass frac* H 1 1.00 0.104472 C 6 0.19 0.232190 N 7 0.02 0.024880 O 8 0.38 0.630238 Na 11 0.00 0.001130 Mg 12 0.00 0.000130 P 15 0.00 0.001330 S 16 0.00

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Polonium (Po) Polonium (Po) Quantity Value Units Value Units Atomic number 84 Atomic mass [208.98243(2)] g mole-1 Density 9.32 g cm-3 Mean excitation energy 830.0 eV Minimum ionization 1.141 MeV g-1cm2 10.63 MeV cm-1 Nuclear collision length 114.3 g cm-2 12.27 cm Nuclear interaction length 200.2 g cm-2 21.48 cm Pion collision length 137.6 g cm-2 14.76 cm Pion interaction length 226.7 g cm-2 24.32 cm Radiation length 6.16 g cm-2 0.6611 cm Critical energy 7.33 MeV (for e-) 7.06 MeV (for e+) Molière radius 17.83 g cm-2 1.913 cm Plasma energy 55.77 eV Muon critical energy 140. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries

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Viton fluoroelastomer (C5H2F8)n Viton fluoroelastomer (C5H2F8)n Quantity Value Units Value Units 0.48585 Density 1.80 g cm-3 Mean excitation energy 98.6 eV Minimum ionization 1.701 MeV g-1cm2 3.062 MeV cm-1 Nuclear collision length 62.9 g cm-2 34.96 cm Nuclear interaction length 93.1 g cm-2 51.73 cm Pion collision length 89.4 g cm-2 49.69 cm Pion interaction length 123.8 g cm-2 68.76 cm Radiation length 35.36 g cm-2 19.64 cm Critical energy 65.82 MeV (for e-) 64.02 MeV (for e+) Molière radius 11.39 g cm-2 6.329 cm Plasma energy 26.95 eV Muon critical energy 879. GeV Composition: Elem Z Atomic frac* Mass frac* H 1 2.00 0.009417 C 6 5.00 0.280555 F 9 8.00 0.710028 * calculated from mass fraction data. Explanation of some entries

Note: This page contains sample records for the topic "mev g-1cm2 nuclear" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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dioxide (fused quartz) (SiO2) dioxide (fused quartz) (SiO2) Quantity Value Units Value Units 0.49930 Density 2.20 g cm-3 Mean excitation energy 139.2 eV Minimum ionization 1.699 MeV g-1cm2 3.737 MeV cm-1 Nuclear collision length 65.2 g cm-2 29.64 cm Nuclear interaction length 97.8 g cm-2 44.47 cm Pion collision length 91.9 g cm-2 41.77 cm Pion interaction length 128.8 g cm-2 58.56 cm Radiation length 27.05 g cm-2 12.29 cm Critical energy 50.58 MeV (for e-) 49.17 MeV (for e+) Molière radius 11.34 g cm-2 5.154 cm Plasma energy 30.20 eV Muon critical energy 708. GeV Melting point 1986. K 1713. C Boiling point @ 1 atm 3223. K 2950. C Index of refraction (@ STP, Na D) 1.46 Composition: Elem Z Atomic frac* Mass frac*

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(Ca) (Ca) Quantity Value Units Value Units Atomic number 20 Atomic mass 40.078(4) g mole-1 Density 1.55 g cm-3 Mean excitation energy 191.0 eV Minimum ionization 1.655 MeV g-1cm2 2.566 MeV cm-1 Nuclear collision length 75.8 g cm-2 48.89 cm Nuclear interaction length 119.8 g cm-2 77.31 cm Pion collision length 101.4 g cm-2 65.44 cm Pion interaction length 148.8 g cm-2 96.02 cm Radiation length 16.14 g cm-2 10.42 cm Critical energy 29.56 MeV (for e-) 28.71 MeV (for e+) Molière radius 11.58 g cm-2 7.471 cm Plasma energy 25.34 eV Muon critical energy 447. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries Table of isotopes Warning: may not be current

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Blood (ICRP) Blood (ICRP) Quantity Value Units Value Units 0.54995 Density 1.06 g cm-3 Mean excitation energy 75.2 eV Minimum ionization 1.971 MeV g-1cm2 2.089 MeV cm-1 Nuclear collision length 58.6 g cm-2 55.30 cm Nuclear interaction length 83.6 g cm-2 78.90 cm Pion collision length 86.1 g cm-2 81.22 cm Pion interaction length 115.5 g cm-2 109.0 cm Radiation length 36.53 g cm-2 34.46 cm Critical energy 78.81 MeV (for e-) 76.71 MeV (for e+) Molière radius 9.83 g cm-2 9.272 cm Plasma energy 22.00 eV Muon critical energy 1032. GeV Composition: Elem Z Atomic frac* Mass frac* H 1 1.00 0.101866 C 6 0.08 0.100020 N 7 0.02 0.029640 O 8 0.47 0.759414 Na 11 0.00 0.001850 Mg 12 0.00 0.000040 Si 14 0.00 0.000030 P 15

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(Ga) (Ga) Quantity Value Units Value Units Atomic number 31 Atomic mass 69.723(1) g mole-1 Density 5.90 g cm-3 Mean excitation energy 334.0 eV Minimum ionization 1.379 MeV g-1cm2 8.140 MeV cm-1 Nuclear collision length 86.0 g cm-2 14.57 cm Nuclear interaction length 141.2 g cm-2 23.92 cm Pion collision length 111.1 g cm-2 18.82 cm Pion interaction length 169.7 g cm-2 28.74 cm Radiation length 12.47 g cm-2 2.113 cm Critical energy 18.57 MeV (for e-) 17.98 MeV (for e+) Molière radius 14.24 g cm-2 2.412 cm Plasma energy 46.69 eV Muon critical energy 304. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries Table of isotopes Warning: may not be current

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tungstate (PbWO4) tungstate (PbWO4) Quantity Value Units Value Units 0.41315 Density 8.30 g cm-3 Mean excitation energy 600.7 eV Minimum ionization 1.229 MeV g-1cm2 10.20 MeV cm-1 Nuclear collision length 100.6 g cm-2 12.12 cm Nuclear interaction length 168.3 g cm-2 20.27 cm Pion collision length 126.2 g cm-2 15.21 cm Pion interaction length 199.5 g cm-2 24.04 cm Radiation length 7.39 g cm-2 0.8903 cm Critical energy 9.64 MeV (for e-) 9.31 MeV (for e+) Molière radius 16.26 g cm-2 1.959 cm Plasma energy 53.36 eV Muon critical energy 170. GeV Melting point 1396. K 1123. C Index of refraction (@ STP, Na D) 2.20 Composition: Elem Z Atomic frac* Mass frac* Pb 82 1.00 0.455347 W 74 1.00 0.404011

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deuterium (D2) (D ) deuterium (D2) (D ) Quantity Value Units Value Units Atomic number 1 Atomic mass 2.014101764(13) g mole-1 Density 0.169 g cm-3 Mean excitation energy 21.8 eV Minimum ionization 2.019 MeV g-1cm2 0.3411 MeV cm-1 Nuclear collision length 51.3 g cm-2 303.8 cm Nuclear interaction length 71.8 g cm-2 424.7 cm Pion collision length 81.4 g cm-2 481.8 cm Pion interaction length 110.1 g cm-2 651.6 cm Radiation length 125.98 g cm-2 745.4 cm Critical energy 278.02 MeV (for e-) 271.50 MeV (for e+) Molière radius 9.61 g cm-2 56.86 cm Plasma energy 8.35 eV Muon critical energy 1592. GeV Boiling point @ 1 atm 23.65 K -249.5 C Triple point 18.69 K -254.5 C Index of refraction (@ STP, Na D) 1.11

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(Tl) (Tl) Quantity Value Units Value Units Atomic number 81 Atomic mass 204.3833(2) g mole-1 Density 11.7 g cm-3 Mean excitation energy 810.0 eV Minimum ionization 1.125 MeV g-1cm2 13.19 MeV cm-1 Nuclear collision length 113.6 g cm-2 9.696 cm Nuclear interaction length 198.7 g cm-2 16.96 cm Pion collision length 136.9 g cm-2 11.68 cm Pion interaction length 225.3 g cm-2 19.22 cm Radiation length 6.42 g cm-2 0.5477 cm Critical energy 7.50 MeV (for e-) 7.23 MeV (for e+) Molière radius 18.15 g cm-2 1.549 cm Plasma energy 62.10 eV Muon critical energy 142. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries Table of isotopes Warning: may not be current

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(Pb) (Pb) Quantity Value Units Value Units Atomic number 82 Atomic mass 207.2(1) g mole-1 Density 11.4 g cm-3 Mean excitation energy 823.0 eV Minimum ionization 1.122 MeV g-1cm2 12.74 MeV cm-1 Nuclear collision length 114.1 g cm-2 10.05 cm Nuclear interaction length 199.6 g cm-2 17.59 cm Pion collision length 137.3 g cm-2 12.10 cm Pion interaction length 226.2 g cm-2 19.93 cm Radiation length 6.37 g cm-2 0.5612 cm Critical energy 7.43 MeV (for e-) 7.16 MeV (for e+) Molière radius 18.18 g cm-2 1.602 cm Plasma energy 61.07 eV Muon critical energy 141. GeV Melting point 600.6 K 327.5 C Boiling point @ 1 atm 2022. K 1749. C For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT

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Polypropylene ([CH(CH3)CH2]n) Polypropylene ([CH(CH3)CH2]n) Quantity Value Units Value Units 0.55998 Density 0.905 g cm-3 Mean excitation energy 57.4 eV Minimum ionization 2.041 MeV g-1cm2 1.847 MeV cm-1 Nuclear collision length 56.1 g cm-2 62.01 cm Nuclear interaction length 78.5 g cm-2 86.72 cm Pion collision length 83.7 g cm-2 92.51 cm Pion interaction length 110.4 g cm-2 122.0 cm Radiation length 44.77 g cm-2 49.47 cm Critical energy 99.80 MeV (for e-) 97.18 MeV (for e+) Molière radius 9.51 g cm-2 10.51 cm Plasma energy 20.51 eV Muon critical energy 1259. GeV Composition: Elem Z Atomic frac* Mass frac* H 1 2.00 0.143711 C 6 1.00 0.856289 * calculated from mass fraction data. Explanation of some entries For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT

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Nitrobenzene C6H5NO2 Nitrobenzene C6H5NO2 Quantity Value Units Value Units 0.51986 Density 1.20 g cm-3 Mean excitation energy 75.8 eV Minimum ionization 1.857 MeV g-1cm2 2.226 MeV cm-1 Nuclear collision length 59.0 g cm-2 49.23 cm Nuclear interaction length 85.0 g cm-2 70.94 cm Pion collision length 86.4 g cm-2 72.06 cm Pion interaction length 117.0 g cm-2 97.61 cm Radiation length 40.09 g cm-2 33.44 cm Critical energy 81.68 MeV (for e-) 79.50 MeV (for e+) Molière radius 10.41 g cm-2 8.682 cm Plasma energy 22.75 eV Muon critical energy 1058. GeV Composition: Elem Z Atomic frac* Mass frac* H 1 5.00 0.040935 C 6 6.00 0.585374 N 7 1.00 0.113773 O 8 2.00 0.259918 * calculated from mass fraction data. Explanation of some entries

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(Mg) (Mg) Quantity Value Units Value Units Atomic number 12 Atomic mass 24.3050(6) g mole-1 Density 1.74 g cm-3 Mean excitation energy 156.0 eV Minimum ionization 1.674 MeV g-1cm2 2.913 MeV cm-1 Nuclear collision length 68.2 g cm-2 39.20 cm Nuclear interaction length 104.1 g cm-2 59.84 cm Pion collision length 94.2 g cm-2 54.13 cm Pion interaction length 133.7 g cm-2 76.81 cm Radiation length 25.03 g cm-2 14.39 cm Critical energy 46.55 MeV (for e-) 45.25 MeV (for e+) Molière radius 11.40 g cm-2 6.553 cm Plasma energy 26.71 eV Muon critical energy 659. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries Table of isotopes Warning: may not be current

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Technetium (Tc) Technetium (Tc) Quantity Value Units Value Units Atomic number 43 Atomic mass [97.90722(3)] g mole-1 Density 11.5 g cm-3 Mean excitation energy 428.0 eV Minimum ionization 1.325 MeV g-1cm2 15.24 MeV cm-1 Nuclear collision length 93.5 g cm-2 8.132 cm Nuclear interaction length 156.8 g cm-2 13.64 cm Pion collision length 118.1 g cm-2 10.27 cm Pion interaction length 184.7 g cm-2 16.06 cm Radiation length 9.58 g cm-2 0.8331 cm Critical energy 13.46 MeV (for e-) 13.01 MeV (for e+) Molière radius 15.09 g cm-2 1.313 cm Plasma energy 64.76 eV Muon critical energy 232. GeV Melting point 2430. K 2157. C Boiling point @ 1 atm 4538. K 4265. C For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT

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(Be) (Be) Quantity Value Units Value Units Atomic number 4 Atomic mass 9.012182(3) g mole-1 Density 1.85 g cm-3 Mean excitation energy 63.7 eV Minimum ionization 1.595 MeV g-1cm2 2.947 MeV cm-1 Nuclear collision length 55.3 g cm-2 29.93 cm Nuclear interaction length 77.8 g cm-2 42.10 cm Pion collision length 82.4 g cm-2 44.60 cm Pion interaction length 109.9 g cm-2 59.47 cm Radiation length 65.19 g cm-2 35.28 cm Critical energy 113.70 MeV (for e-) 110.68 MeV (for e+) Molière radius 12.16 g cm-2 6.579 cm Plasma energy 26.10 eV Muon critical energy 1328. GeV Melting point 1560. K 1287. C Boiling point @ 1 atm 2744. K 2471. C For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT

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Hafnium (Hf) Hafnium (Hf) Quantity Value Units Value Units Atomic number 72 Atomic mass 178.49(2) g mole-1 Density 13.3 g cm-3 Mean excitation energy 705.0 eV Minimum ionization 1.152 MeV g-1cm2 15.33 MeV cm-1 Nuclear collision length 109.5 g cm-2 8.226 cm Nuclear interaction length 190.1 g cm-2 14.28 cm Pion collision length 133.0 g cm-2 9.995 cm Pion interaction length 216.9 g cm-2 16.30 cm Radiation length 6.89 g cm-2 0.5177 cm Critical energy 8.22 MeV (for e-) 7.93 MeV (for e+) Molière radius 17.77 g cm-2 1.335 cm Plasma energy 66.77 eV Muon critical energy 155. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries

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Striated muscle (ICRU) Striated muscle (ICRU) Quantity Value Units Value Units 0.55005 Density 1.04 g cm-3 Mean excitation energy 74.7 eV Minimum ionization 1.973 MeV g-1cm2 2.052 MeV cm-1 Nuclear collision length 58.5 g cm-2 56.24 cm Nuclear interaction length 83.4 g cm-2 80.24 cm Pion collision length 85.9 g cm-2 82.61 cm Pion interaction length 115.3 g cm-2 110.9 cm Radiation length 36.51 g cm-2 35.11 cm Critical energy 78.85 MeV (for e-) 76.75 MeV (for e+) Molière radius 9.82 g cm-2 9.441 cm Plasma energy 21.79 eV Muon critical energy 1033. GeV Composition: Elem Z Atomic frac* Mass frac* H 1 1.00 0.101997 C 6 0.10 0.123000 N 7 0.02 0.035000 O 8 0.45 0.729003 Na 11 0.00 0.000800 Mg 12 0.00 0.000200 P 15 0.00

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Ethanol (C2H5OH) Ethanol (C2H5OH) Quantity Value Units Value Units 0.56437 Density 0.789 g cm-3 Mean excitation energy 62.9 eV Minimum ionization 2.054 MeV g-1cm2 1.621 MeV cm-1 Nuclear collision length 57.0 g cm-2 72.25 cm Nuclear interaction length 80.3 g cm-2 101.7 cm Pion collision length 84.6 g cm-2 107.2 cm Pion interaction length 112.2 g cm-2 142.2 cm Radiation length 40.92 g cm-2 51.84 cm Critical energy 92.15 MeV (for e-) 89.73 MeV (for e+) Molière radius 9.42 g cm-2 11.93 cm Plasma energy 19.23 eV Muon critical energy 1178. GeV Melting point 159.0 K -114.1 C Boiling point @ 1 atm 351.4 K 78.29 C Index of refraction (@ STP, Na D) 1.36 Composition: Elem Z Atomic frac* Mass frac*

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Phosphorus (P ) Phosphorus (P ) Quantity Value Units Value Units Atomic number 15 Atomic mass 30.973762(2) g mole-1 Density 2.20 g cm-3 Mean excitation energy 173.0 eV Minimum ionization 1.613 MeV g-1cm2 3.548 MeV cm-1 Nuclear collision length 71.7 g cm-2 32.59 cm Nuclear interaction length 111.4 g cm-2 50.62 cm Pion collision length 97.5 g cm-2 44.33 cm Pion interaction length 140.7 g cm-2 63.97 cm Radiation length 21.21 g cm-2 9.639 cm Critical energy 37.92 MeV (for e-) 36.84 MeV (for e+) Molière radius 11.86 g cm-2 5.391 cm Plasma energy 29.74 eV Muon critical energy 552. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries

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Mercury (Hg) Mercury (Hg) Quantity Value Units Value Units Atomic number 80 Atomic mass 200.59(2) g mole-1 Density 13.5 g cm-3 Mean excitation energy 800.0 eV Minimum ionization 1.130 MeV g-1cm2 15.31 MeV cm-1 Nuclear collision length 113.1 g cm-2 8.346 cm Nuclear interaction length 197.5 g cm-2 14.58 cm Pion collision length 136.4 g cm-2 10.07 cm Pion interaction length 224.1 g cm-2 16.54 cm Radiation length 6.44 g cm-2 0.4752 cm Critical energy 7.53 MeV (for e-) 7.26 MeV (for e+) Molière radius 18.12 g cm-2 1.338 cm Plasma energy 66.98 eV Muon critical energy 143. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries

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Xenon gas (Xe) Xenon gas (Xe) Quantity Value Units Value Units Atomic number 54 Atomic mass 131.293(6) g mole-1 Specific gravity (20° C, 1 atm) 5.48E-03 g cm-3 Mean excitation energy 482.0 eV Minimum ionization 1.255 MeV g-1cm2 6.882E-03 MeV cm-1 Nuclear collision length 100.8 g cm-2 1.839E+04 cm Nuclear interaction length 172.1 g cm-2 3.139E+04 cm Pion collision length 125.0 g cm-2 2.279E+04 cm Pion interaction length 199.6 g cm-2 3.640E+04 cm Radiation length 8.48 g cm-2 1547. cm Critical energy 12.30 MeV (for e-) 11.91 MeV (for e+) Molière radius 14.63 g cm-2 2667. cm Plasma energy 1.37 eV Muon critical energy 232. GeV Melting point 161.4 K -111.8 C Boiling point @ 1 atm 165.1 K -108.0 C

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dioxide (PuO2) dioxide (PuO2) Quantity Value Units Value Units 0.40583 Density 11.5 g cm-3 Mean excitation energy 746.5 eV Minimum ionization 1.158 MeV g-1cm2 13.27 MeV cm-1 Nuclear collision length 107.4 g cm-2 9.374 cm Nuclear interaction length 182.0 g cm-2 15.88 cm Pion collision length 132.8 g cm-2 11.59 cm Pion interaction length 213.2 g cm-2 18.61 cm Radiation length 6.57 g cm-2 0.5735 cm Critical energy 7.86 MeV (for e-) 7.58 MeV (for e+) Molière radius 17.72 g cm-2 1.546 cm Plasma energy 62.14 eV Muon critical energy 147. GeV Composition: Elem Z Atomic frac* Mass frac* O 8 2.00 0.118055 Pu 94 0.98 0.881945 * calculated from mass fraction data. Explanation of some entries For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT

Note: This page contains sample records for the topic "mev g-1cm2 nuclear" 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
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hexafluoride (WF6) hexafluoride (WF6) Quantity Value Units Value Units 0.42976 Density 2.40 g cm-3 Mean excitation energy 354.4 eV Minimum ionization 1.346 MeV g-1cm2 3.230 MeV cm-1 Nuclear collision length 87.1 g cm-2 36.28 cm Nuclear interaction length 140.0 g cm-2 58.32 cm Pion collision length 113.4 g cm-2 47.26 cm Pion interaction length 171.5 g cm-2 71.47 cm Radiation length 9.72 g cm-2 4.049 cm Critical energy 14.03 MeV (for e-) 13.59 MeV (for e+) Molière radius 14.69 g cm-2 6.120 cm Plasma energy 29.27 eV Muon critical energy 234. GeV Composition: Elem Z Atomic frac* Mass frac* F 9 6.00 0.382723 W 74 1.00 0.617277 * calculated from mass fraction data. Explanation of some entries For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT

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Testes (ICRP) Testes (ICRP) Quantity Value Units Value Units 0.55108 Density 1.04 g cm-3 Mean excitation energy 75.0 eV Minimum ionization 1.976 MeV g-1cm2 2.056 MeV cm-1 Nuclear collision length 58.6 g cm-2 56.33 cm Nuclear interaction length 83.5 g cm-2 80.33 cm Pion collision length 86.1 g cm-2 82.75 cm Pion interaction length 115.4 g cm-2 111.0 cm Radiation length 36.47 g cm-2 35.07 cm Critical energy 78.91 MeV (for e-) 76.81 MeV (for e+) Molière radius 9.80 g cm-2 9.424 cm Plasma energy 21.82 eV Muon critical energy 1034. GeV Composition: Elem Z Atomic frac* Mass frac* H 1 1.00 0.104166 C 6 0.07 0.092270 N 7 0.01 0.019940 O 8 0.47 0.773884 Na 11 0.00 0.002260 Mg 12 0.00 0.000110 P 15 0.00 0.001250 S 16

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krypton (Kr) krypton (Kr) Quantity Value Units Value Units Atomic number 36 Atomic mass 83.798(2) g mole-1 Density 2.42 g cm-3 Mean excitation energy 352.0 eV Minimum ionization 1.357 MeV g-1cm2 3.281 MeV cm-1 Nuclear collision length 90.0 g cm-2 37.21 cm Nuclear interaction length 149.4 g cm-2 61.80 cm Pion collision length 114.8 g cm-2 47.46 cm Pion interaction length 177.6 g cm-2 73.47 cm Radiation length 11.37 g cm-2 4.703 cm Critical energy 17.03 MeV (for e-) 16.51 MeV (for e+) Molière radius 14.16 g cm-2 5.857 cm Plasma energy 29.37 eV Muon critical energy 277. GeV Melting point 115.8 K -157.4 C Boiling point @ 1 atm 119.9 K -153.2 C Index of refraction (@ STP, Na D) 1.30 For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT

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Air (dry, 1 atm) Air (dry, 1 atm) Quantity Value Units Value Units 0.49919 Specific gravity (20° C, 1 atm) 1.20E-03 g cm-3 Mean excitation energy 85.7 eV Minimum ionization 1.815 MeV g-1cm2 2.187E-03 MeV cm-1 Nuclear collision length 61.3 g cm-2 5.088E+04 cm Nuclear interaction length 90.1 g cm-2 7.477E+04 cm Pion collision length 88.5 g cm-2 7.348E+04 cm Pion interaction length 122.0 g cm-2 1.013E+05 cm Radiation length 36.62 g cm-2 3.039E+04 cm Critical energy 87.92 MeV (for e-) 85.96 MeV (for e+) Molière radius 8.83 g cm-2 7330. cm Plasma energy 0.71 eV Muon critical energy 1115. GeV Boiling point @ 1 atm 78.80 K -194.4 C Index of refraction (@ STP, Na D) 172. (n-1)x106 Composition:

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Propane based) Propane based) Quantity Value Units Value Units 0.55027 Specific gravity (20° C, 1 atm) 1.83E-03 g cm-3 Mean excitation energy 59.5 eV Minimum ionization 2.068 MeV g-1cm2 3.778E-03 MeV cm-1 Nuclear collision length 57.6 g cm-2 3.153E+04 cm Nuclear interaction length 81.6 g cm-2 4.470E+04 cm Pion collision length 85.1 g cm-2 4.660E+04 cm Pion interaction length 113.6 g cm-2 6.220E+04 cm Radiation length 40.91 g cm-2 2.240E+04 cm Critical energy 109.50 MeV (for e-) 107.13 MeV (for e+) Molière radius 7.92 g cm-2 4338. cm Plasma energy 0.91 eV Muon critical energy 1335. GeV Composition: Elem Z Atomic frac* Mass frac* H 1 1.00 0.102672 C 6 0.47 0.568940 N 7 0.02 0.035022 O 8 0.18 0.293366

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Copper (Cu) Copper (Cu) Quantity Value Units Value Units Atomic number 29 Atomic mass 63.546(3) g mole-1 Density 8.96 g cm-3 Mean excitation energy 322.0 eV Minimum ionization 1.403 MeV g-1cm2 12.57 MeV cm-1 Nuclear collision length 84.2 g cm-2 9.393 cm Nuclear interaction length 137.3 g cm-2 15.32 cm Pion collision length 109.3 g cm-2 12.20 cm Pion interaction length 165.9 g cm-2 18.51 cm Radiation length 12.86 g cm-2 1.436 cm Critical energy 19.42 MeV (for e-) 18.79 MeV (for e+) Molière radius 14.05 g cm-2 1.568 cm Plasma energy 58.27 eV Muon critical energy 317. GeV Melting point 1358. K 1085. C Boiling point @ 1 atm 2835. K 2562. C For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT

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ice) (H2O) ice) (H2O) Quantity Value Units Value Units 0.55509 Density 0.918 g cm-3 Mean excitation energy 79.7 eV Minimum ionization 1.984 MeV g-1cm2 1.822 MeV cm-1 Nuclear collision length 58.5 g cm-2 63.73 cm Nuclear interaction length 83.3 g cm-2 90.77 cm Pion collision length 86.0 g cm-2 93.68 cm Pion interaction length 115.2 g cm-2 125.5 cm Radiation length 36.08 g cm-2 39.31 cm Critical energy 78.60 MeV (for e-) 76.51 MeV (for e+) Molière radius 9.73 g cm-2 10.60 cm Plasma energy 20.57 eV Muon critical energy 1031. GeV Melting point 273.1 K 0.000E+00 C Boiling point @ 1 atm 373.1 K 99.96 C Index of refraction (@ STP, Na D) 1.31 Composition: Elem Z Atomic frac* Mass frac*

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Ethane (C2H6) Ethane (C2H6) Quantity Value Units Value Units 0.59861 Specific gravity (20° C, 1 atm) 1.26E-03 g cm-3 Mean excitation energy 45.4 eV Minimum ionization 2.304 MeV g-1cm2 2.910E-03 MeV cm-1 Nuclear collision length 55.0 g cm-2 4.353E+04 cm Nuclear interaction length 75.9 g cm-2 6.009E+04 cm Pion collision length 82.7 g cm-2 6.546E+04 cm Pion interaction length 107.7 g cm-2 8.525E+04 cm Radiation length 45.66 g cm-2 3.615E+04 cm Critical energy 135.97 MeV (for e-) 133.10 MeV (for e+) Molière radius 7.12 g cm-2 5638. cm Plasma energy 0.79 eV Muon critical energy 1603. GeV Melting point 90.36 K -182.8 C Boiling point @ 1 atm 184.5 K -88.60 C Triple point 183.3 K -89.88 C

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iodide (CsI) iodide (CsI) Quantity Value Units Value Units 0.41569 Density 4.51 g cm-3 Mean excitation energy 553.1 eV Minimum ionization 1.243 MeV g-1cm2 5.605 MeV cm-1 Nuclear collision length 100.6 g cm-2 22.30 cm Nuclear interaction length 171.5 g cm-2 38.04 cm Pion collision length 124.7 g cm-2 27.65 cm Pion interaction length 199.0 g cm-2 44.12 cm Radiation length 8.39 g cm-2 1.860 cm Critical energy 11.17 MeV (for e-) 10.80 MeV (for e+) Molière radius 15.92 g cm-2 3.531 cm Plasma energy 39.46 eV Muon critical energy 198. GeV Melting point 894.2 K 621.0 C Boiling point @ 1 atm 1553. K 1280. C Index of refraction (@ STP, Na D) 1.79 Composition: Elem Z Atomic frac* Mass frac*

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dioxide gas (CO2) dioxide gas (CO2) Quantity Value Units Value Units 0.49989 Specific gravity (20° C, 1 atm) 1.84E-03 g cm-3 Mean excitation energy 85.0 eV Minimum ionization 1.819 MeV g-1cm2 3.351E-03 MeV cm-1 Nuclear collision length 60.7 g cm-2 3.297E+04 cm Nuclear interaction length 88.9 g cm-2 4.828E+04 cm Pion collision length 87.9 g cm-2 4.772E+04 cm Pion interaction length 120.8 g cm-2 6.555E+04 cm Radiation length 36.20 g cm-2 1.965E+04 cm Critical energy 86.17 MeV (for e-) 84.25 MeV (for e+) Molière radius 8.91 g cm-2 4835. cm Plasma energy 0.87 eV Muon critical energy 1095. GeV Index of refraction (@ STP, Na D) 449. (n-1)x106 Sublimination temperature (@ 1 atm) 194.8 K -78.40 C

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Paraffin (CH3(CH2)n\approx23CH3) Paraffin (CH3(CH2)n\approx23CH3) Quantity Value Units Value Units 0.57275 Density 0.930 g cm-3 Mean excitation energy 55.9 eV Minimum ionization 2.088 MeV g-1cm2 1.942 MeV cm-1 Nuclear collision length 56.0 g cm-2 60.24 cm Nuclear interaction length 78.3 g cm-2 84.14 cm Pion collision length 83.6 g cm-2 89.92 cm Pion interaction length 110.1 g cm-2 118.4 cm Radiation length 44.85 g cm-2 48.22 cm Critical energy 102.22 MeV (for e-) 99.54 MeV (for e+) Molière radius 9.30 g cm-2 10.00 cm Plasma energy 21.03 eV Muon critical energy 1288. GeV Composition: Elem Z Atomic frac* Mass frac* H 1 52.00 0.148605 C 6 25.00 0.851395 * calculated from mass fraction data. Explanation of some entries

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Neptunium (Np) Neptunium (Np) Quantity Value Units Value Units Atomic number 93 Atomic mass [237.04817(2)] g mole-1 Density 20.2 g cm-3 Mean excitation energy 902.0 eV Minimum ionization 1.095 MeV g-1cm2 22.17 MeV cm-1 Nuclear collision length 118.5 g cm-2 5.850 cm Nuclear interaction length 208.7 g cm-2 10.31 cm Pion collision length 141.4 g cm-2 6.984 cm Pion interaction length 235.0 g cm-2 11.60 cm Radiation length 5.87 g cm-2 0.2897 cm Critical energy 6.57 MeV (for e-) 6.33 MeV (for e+) Molière radius 18.93 g cm-2 0.9349 cm Plasma energy 81.22 eV Muon critical energy 127. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries

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Vanadium (V ) Vanadium (V ) Quantity Value Units Value Units Atomic number 23 Atomic mass 50.9415(1) g mole-1 Density 6.11 g cm-3 Mean excitation energy 245.0 eV Minimum ionization 1.436 MeV g-1cm2 8.776 MeV cm-1 Nuclear collision length 80.0 g cm-2 13.09 cm Nuclear interaction length 128.5 g cm-2 21.04 cm Pion collision length 105.3 g cm-2 17.24 cm Pion interaction length 157.5 g cm-2 25.77 cm Radiation length 15.84 g cm-2 2.593 cm Critical energy 24.67 MeV (for e-) 23.91 MeV (for e+) Molière radius 13.62 g cm-2 2.229 cm Plasma energy 47.86 eV Muon critical energy 385. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries

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(Na) (Na) Quantity Value Units Value Units Atomic number 11 Atomic mass 22.98976928(2) g mole-1 Density 0.971 g cm-3 Mean excitation energy 149.0 eV Minimum ionization 1.639 MeV g-1cm2 1.592 MeV cm-1 Nuclear collision length 67.4 g cm-2 69.46 cm Nuclear interaction length 102.6 g cm-2 105.6 cm Pion collision length 93.4 g cm-2 96.22 cm Pion interaction length 132.2 g cm-2 136.2 cm Radiation length 27.74 g cm-2 28.56 cm Critical energy 51.38 MeV (for e-) 49.99 MeV (for e+) Molière radius 11.45 g cm-2 11.79 cm Plasma energy 19.64 eV Muon critical energy 712. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries

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Ammonia (NH3) Ammonia (NH3) Quantity Value Units Value Units 0.59719 Specific gravity (20° C, 1 atm) 8.26E-04 g cm-3 Mean excitation energy 53.7 eV Minimum ionization 2.265 MeV g-1cm2 1.871E-03 MeV cm-1 Nuclear collision length 56.8 g cm-2 6.876E+04 cm Nuclear interaction length 79.5 g cm-2 9.620E+04 cm Pion collision length 84.5 g cm-2 1.023E+05 cm Pion interaction length 111.5 g cm-2 1.350E+05 cm Radiation length 40.87 g cm-2 4.948E+04 cm Critical energy 121.70 MeV (for e-) 119.12 MeV (for e+) Molière radius 7.12 g cm-2 8622. cm Plasma energy 0.64 eV Muon critical energy 1469. GeV Index of refraction (@ STP, Na D) 376. (n-1)x106 Composition: Elem Z Atomic frac* Mass frac* H 1

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Brain (ICRP) Brain (ICRP) Quantity Value Units Value Units 0.55423 Density 1.03 g cm-3 Mean excitation energy 73.3 eV Minimum ionization 1.990 MeV g-1cm2 2.050 MeV cm-1 Nuclear collision length 58.4 g cm-2 56.69 cm Nuclear interaction length 83.1 g cm-2 80.68 cm Pion collision length 85.9 g cm-2 83.39 cm Pion interaction length 115.0 g cm-2 111.7 cm Radiation length 36.72 g cm-2 35.65 cm Critical energy 79.96 MeV (for e-) 77.84 MeV (for e+) Molière radius 9.74 g cm-2 9.455 cm Plasma energy 21.77 eV Muon critical energy 1046. GeV Composition: Elem Z Atomic frac* Mass frac* H 1 1.00 0.110667 C 6 0.10 0.125420 N 7 0.01 0.013280 O 8 0.42 0.737723 Na 11 0.00 0.001840 Mg 12 0.00 0.000150 P 15 0.00 0.003540 S 16

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Chlorine gas (Cl2) (Cl) Chlorine gas (Cl2) (Cl) Quantity Value Units Value Units Atomic number 17 Atomic mass 35.453(2) g mole-1 Specific gravity (20° C, 1 atm) 2.98E-03 g cm-3 Mean excitation energy 174.0 eV Minimum ionization 1.630 MeV g-1cm2 4.856E-03 MeV cm-1 Nuclear collision length 73.8 g cm-2 2.476E+04 cm Nuclear interaction length 115.7 g cm-2 3.882E+04 cm Pion collision length 99.5 g cm-2 3.340E+04 cm Pion interaction length 144.9 g cm-2 4.864E+04 cm Radiation length 19.28 g cm-2 6469. cm Critical energy 40.05 MeV (for e-) 39.04 MeV (for e+) Molière radius 10.21 g cm-2 3425. cm Plasma energy 1.09 eV Muon critical energy 592. GeV Melting point 171.6 K -101.5 C Boiling point @ 1 atm 239.1 K -34.04 C

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B-100 Bone-equivalent plastic B-100 Bone-equivalent plastic Quantity Value Units Value Units 0.52740 Density 1.45 g cm-3 Mean excitation energy 85.9 eV Minimum ionization 1.859 MeV g-1cm2 2.695 MeV cm-1 Nuclear collision length 61.0 g cm-2 42.10 cm Nuclear interaction length 88.5 g cm-2 61.01 cm Pion collision length 88.3 g cm-2 60.89 cm Pion interaction length 120.2 g cm-2 82.93 cm Radiation length 32.11 g cm-2 22.15 cm Critical energy 65.17 MeV (for e-) 63.40 MeV (for e+) Molière radius 10.45 g cm-2 7.206 cm Plasma energy 25.20 eV Muon critical energy 877. GeV Composition: Elem Z Atomic frac* Mass frac* H 1 1.00 0.065471 C 6 0.69 0.536945 N 7 0.02 0.021500 O 8 0.03 0.032085 F 9 0.14 0.167411 Ca 20 0.07 0.176589 * calculated from mass fraction data.

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(Bi) (Bi) Quantity Value Units Value Units Atomic number 83 Atomic mass 208.98040(1) g mole-1 Density 9.75 g cm-3 Mean excitation energy 823.0 eV Minimum ionization 1.128 MeV g-1cm2 10.99 MeV cm-1 Nuclear collision length 114.3 g cm-2 11.73 cm Nuclear interaction length 200.2 g cm-2 20.54 cm Pion collision length 137.6 g cm-2 14.11 cm Pion interaction length 226.7 g cm-2 23.26 cm Radiation length 6.29 g cm-2 0.6454 cm Critical energy 7.39 MeV (for e-) 7.13 MeV (for e+) Molière radius 18.04 g cm-2 1.851 cm Plasma energy 56.70 eV Muon critical energy 141. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries

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gem diamond) (C ) gem diamond) (C ) Quantity Value Units Value Units Atomic number 6 Atomic mass 12.0107(8) g mole-1 Density 3.52 g cm-3 Mean excitation energy 78.0 eV Minimum ionization 1.725 MeV g-1cm2 6.071 MeV cm-1 Nuclear collision length 59.2 g cm-2 16.82 cm Nuclear interaction length 85.8 g cm-2 24.38 cm Pion collision length 86.5 g cm-2 24.56 cm Pion interaction length 117.8 g cm-2 33.46 cm Radiation length 42.70 g cm-2 12.13 cm Critical energy 80.17 MeV (for e-) 77.94 MeV (for e+) Molière radius 11.29 g cm-2 3.208 cm Plasma energy 38.21 eV Muon critical energy 1044. GeV Index of refraction (@ STP, Na D) 2.42 For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT

Note: This page contains sample records for the topic "mev g-1cm2 nuclear" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

 

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fluoride (LiF) fluoride (LiF) Quantity Value Units Value Units 0.46262 Density 2.63 g cm-3 Mean excitation energy 94.0 eV Minimum ionization 1.614 MeV g-1cm2 4.253 MeV cm-1 Nuclear collision length 61.0 g cm-2 23.13 cm Nuclear interaction length 88.7 g cm-2 33.68 cm Pion collision length 87.5 g cm-2 33.21 cm Pion interaction length 119.8 g cm-2 45.46 cm Radiation length 39.26 g cm-2 14.90 cm Critical energy 68.82 MeV (for e-) 66.93 MeV (for e+) Molière radius 12.09 g cm-2 4.590 cm Plasma energy 31.82 eV Muon critical energy 904. GeV Melting point 1121. K 848.2 C Boiling point @ 1 atm 1946. K 1673. C Index of refraction (@ STP, Na D) 1.39 Composition: Elem Z Atomic frac* Mass frac*

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Actinium (Ac) Actinium (Ac) Quantity Value Units Value Units Atomic number 89 Atomic mass [227.02775(2)] g mole-1 Density 10.1 g cm-3 Mean excitation energy 841.0 eV Minimum ionization 1.112 MeV g-1cm2 11.19 MeV cm-1 Nuclear collision length 117.0 g cm-2 11.62 cm Nuclear interaction length 205.8 g cm-2 20.43 cm Pion collision length 140.1 g cm-2 13.91 cm Pion interaction length 232.1 g cm-2 23.05 cm Radiation length 6.06 g cm-2 0.6016 cm Critical energy 7.00 MeV (for e-) 6.75 MeV (for e+) Molière radius 18.34 g cm-2 1.821 cm Plasma energy 57.25 eV Muon critical energy 134. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries

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Promethium (Pm) Promethium (Pm) Quantity Value Units Value Units Atomic number 61 Atomic mass [144.91275(3)] g mole-1 Density 7.26 g cm-3 Mean excitation energy 560.0 eV Minimum ionization 1.240 MeV g-1cm2 9.008 MeV cm-1 Nuclear collision length 103.5 g cm-2 14.25 cm Nuclear interaction length 177.7 g cm-2 24.46 cm Pion collision length 127.5 g cm-2 17.55 cm Pion interaction length 204.9 g cm-2 28.20 cm Radiation length 7.51 g cm-2 1.035 cm Critical energy 9.83 MeV (for e-) 9.49 MeV (for e+) Molière radius 16.21 g cm-2 2.231 cm Plasma energy 50.39 eV Muon critical energy 180. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries

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Praseodymium (Pr) Praseodymium (Pr) Quantity Value Units Value Units Atomic number 59 Atomic mass 140.90765(2) g mole-1 Density 6.71 g cm-3 Mean excitation energy 535.0 eV Minimum ionization 1.244 MeV g-1cm2 8.344 MeV cm-1 Nuclear collision length 102.7 g cm-2 15.31 cm Nuclear interaction length 176.1 g cm-2 26.24 cm Pion collision length 126.7 g cm-2 18.89 cm Pion interaction length 203.3 g cm-2 30.30 cm Radiation length 7.76 g cm-2 1.156 cm Critical energy 10.21 MeV (for e-) 9.87 MeV (for e+) Molière radius 16.11 g cm-2 2.401 cm Plasma energy 48.30 eV Muon critical energy 183. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries

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(Lu) (Lu) Quantity Value Units Value Units Atomic number 71 Atomic mass 174.9668(1) g mole-1 Density 9.84 g cm-3 Mean excitation energy 694.0 eV Minimum ionization 1.160 MeV g-1cm2 11.42 MeV cm-1 Nuclear collision length 108.9 g cm-2 11.07 cm Nuclear interaction length 188.9 g cm-2 19.19 cm Pion collision length 132.5 g cm-2 13.46 cm Pion interaction length 215.7 g cm-2 21.92 cm Radiation length 6.92 g cm-2 0.7037 cm Critical energy 8.36 MeV (for e-) 8.06 MeV (for e+) Molière radius 17.55 g cm-2 1.784 cm Plasma energy 57.58 eV Muon critical energy 157. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries Table of isotopes Warning: may not be current

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Americium (Am) Americium (Am) Quantity Value Units Value Units Atomic number 95 Atomic mass [243.06138(2)] g mole-1 Density 13.7 g cm-3 Mean excitation energy 934.0 eV Minimum ionization 1.089 MeV g-1cm2 14.88 MeV cm-1 Nuclear collision length 119.3 g cm-2 8.727 cm Nuclear interaction length 210.5 g cm-2 15.40 cm Pion collision length 142.2 g cm-2 10.40 cm Pion interaction length 236.7 g cm-2 17.31 cm Radiation length 5.80 g cm-2 0.4243 cm Critical energy 6.50 MeV (for e-) 6.25 MeV (for e+) Molière radius 18.93 g cm-2 1.385 cm Plasma energy 66.61 eV Muon critical energy 127. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries

167

 

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Helium gas (He) Helium gas (He) Quantity Value Units Value Units Atomic number 2 Atomic mass 4.002602(2) g mole-1 Specific gravity (20° C, 1 atm) 1.66E-04 g cm-3 Mean excitation energy 41.8 eV Minimum ionization 1.937 MeV g-1cm2 3.222E-04 MeV cm-1 Nuclear collision length 51.8 g cm-2 3.117E+05 cm Nuclear interaction length 71.0 g cm-2 4.269E+05 cm Pion collision length 79.5 g cm-2 4.778E+05 cm Pion interaction length 103.6 g cm-2 6.229E+05 cm Radiation length 94.32 g cm-2 5.671E+05 cm Critical energy 257.13 MeV (for e-) 252.23 MeV (for e+) Molière radius 7.78 g cm-2 4.677E+04 cm Plasma energy 0.26 eV Muon critical energy 2352. GeV Boiling point @ 1 atm 4.220 K -268.9 C Index of refraction (@ STP, Na D) 35.0 (n-1)x106

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(U ) (U ) Quantity Value Units Value Units Atomic number 92 Atomic mass [238.02891(3)] g mole-1 Density 19.0 g cm-3 Mean excitation energy 890.0 eV Minimum ionization 1.081 MeV g-1cm2 20.49 MeV cm-1 Nuclear collision length 118.6 g cm-2 6.258 cm Nuclear interaction length 209.0 g cm-2 11.03 cm Pion collision length 141.5 g cm-2 7.469 cm Pion interaction length 235.3 g cm-2 12.42 cm Radiation length 6.00 g cm-2 0.3166 cm Critical energy 6.65 MeV (for e-) 6.41 MeV (for e+) Molière radius 19.12 g cm-2 1.009 cm Plasma energy 77.99 eV Muon critical energy 128. GeV Melting point 1408. K 1135. C Boiling point @ 1 atm 4404. K 4131. C For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT

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Nitrogen gas (N2) (N ) Nitrogen gas (N2) (N ) Quantity Value Units Value Units Atomic number 7 Atomic mass 14.0067(2) g mole-1 Specific gravity (20° C, 1 atm) 1.17E-03 g cm-3 Mean excitation energy 82.0 eV Minimum ionization 1.825 MeV g-1cm2 2.127E-03 MeV cm-1 Nuclear collision length 61.1 g cm-2 5.242E+04 cm Nuclear interaction length 89.7 g cm-2 7.696E+04 cm Pion collision length 88.4 g cm-2 7.583E+04 cm Pion interaction length 121.7 g cm-2 1.044E+05 cm Radiation length 37.99 g cm-2 3.260E+04 cm Critical energy 91.73 MeV (for e-) 89.71 MeV (for e+) Molière radius 8.78 g cm-2 7536. cm Plasma energy 0.70 eV Muon critical energy 1154. GeV Melting point 63.15 K -210.0 C Boiling point @ 1 atm 77.29 K -195.9 C

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Lithium (Li) Lithium (Li) Quantity Value Units Value Units Atomic number 3 Atomic mass 6.941(2) g mole-1 Density 0.534 g cm-3 Mean excitation energy 40.0 eV Minimum ionization 1.639 MeV g-1cm2 0.8750 MeV cm-1 Nuclear collision length 52.2 g cm-2 97.69 cm Nuclear interaction length 71.3 g cm-2 133.6 cm Pion collision length 79.1 g cm-2 148.2 cm Pion interaction length 103.3 g cm-2 193.4 cm Radiation length 82.78 g cm-2 155.0 cm Critical energy 149.06 MeV (for e-) 145.33 MeV (for e+) Molière radius 11.78 g cm-2 22.05 cm Plasma energy 13.84 eV Muon critical energy 1578. GeV Melting point 453.6 K 180.5 C Boiling point @ 1 atm 1615. K 1342. C For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT

171

 

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Dysprosium (Dy) Dysprosium (Dy) Quantity Value Units Value Units Atomic number 66 Atomic mass 162.500(1) g mole-1 Density 8.55 g cm-3 Mean excitation energy 628.0 eV Minimum ionization 1.175 MeV g-1cm2 10.05 MeV cm-1 Nuclear collision length 106.7 g cm-2 12.48 cm Nuclear interaction length 184.4 g cm-2 21.56 cm Pion collision length 130.5 g cm-2 15.26 cm Pion interaction length 211.4 g cm-2 24.72 cm Radiation length 7.32 g cm-2 0.8562 cm Critical energy 9.02 MeV (for e-) 8.70 MeV (for e+) Molière radius 17.21 g cm-2 2.013 cm Plasma energy 53.70 eV Muon critical energy 167. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries

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(B ) (B ) Quantity Value Units Value Units Atomic number 5 Atomic mass 10.811(7) g mole-1 Density 2.37 g cm-3 Mean excitation energy 76.0 eV Minimum ionization 1.623 MeV g-1cm2 3.847 MeV cm-1 Nuclear collision length 58.0 g cm-2 24.47 cm Nuclear interaction length 83.3 g cm-2 35.16 cm Pion collision length 85.2 g cm-2 35.96 cm Pion interaction length 115.5 g cm-2 48.75 cm Radiation length 52.69 g cm-2 22.23 cm Critical energy 93.95 MeV (for e-) 91.41 MeV (for e+) Molière radius 11.89 g cm-2 5.018 cm Plasma energy 30.17 eV Muon critical energy 1170. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries Table of isotopes Warning: may not be current

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propane (C3H8) propane (C3H8) Quantity Value Units Value Units 0.58962 Density 0.493 g cm-3 Mean excitation energy 52.0 eV Minimum ionization 2.191 MeV g-1cm2 1.080 MeV cm-1 Nuclear collision length 55.3 g cm-2 112.2 cm Nuclear interaction length 76.7 g cm-2 155.6 cm Pion collision length 83.0 g cm-2 168.4 cm Pion interaction length 108.5 g cm-2 220.1 cm Radiation length 45.37 g cm-2 92.04 cm Critical energy 109.23 MeV (for e-) 106.43 MeV (for e+) Molière radius 8.81 g cm-2 17.87 cm Plasma energy 15.54 eV Muon critical energy 1360. GeV Melting point 85.52 K -187.6 C Boiling point @ 1 atm 231.0 K -42.10 C Composition: Elem Z Atomic frac* Mass frac* H 1 8.00 0.182855 C 6 3.00 0.817145 * calculated from mass fraction data.

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(Pu) (Pu) Quantity Value Units Value Units Atomic number 94 Atomic mass [244.06420(4)] g mole-1 Density 19.8 g cm-3 Mean excitation energy 921.0 eV Minimum ionization 1.071 MeV g-1cm2 21.25 MeV cm-1 Nuclear collision length 119.4 g cm-2 6.020 cm Nuclear interaction length 210.8 g cm-2 10.62 cm Pion collision length 142.3 g cm-2 7.174 cm Pion interaction length 237.0 g cm-2 11.94 cm Radiation length 5.93 g cm-2 0.2989 cm Critical energy 6.49 MeV (for e-) 6.25 MeV (for e+) Molière radius 19.36 g cm-2 0.9760 cm Plasma energy 79.66 eV Muon critical energy 126. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries

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Eye lens (ICRP) Eye lens (ICRP) Quantity Value Units Value Units 0.54977 Density 1.10 g cm-3 Mean excitation energy 73.3 eV Minimum ionization 1.971 MeV g-1cm2 2.168 MeV cm-1 Nuclear collision length 58.4 g cm-2 53.10 cm Nuclear interaction length 83.3 g cm-2 75.69 cm Pion collision length 85.9 g cm-2 78.08 cm Pion interaction length 115.2 g cm-2 104.7 cm Radiation length 37.58 g cm-2 34.17 cm Critical energy 81.05 MeV (for e-) 78.89 MeV (for e+) Molière radius 9.83 g cm-2 8.939 cm Plasma energy 22.41 eV Muon critical energy 1057. GeV Composition: Elem Z Atomic frac* Mass frac* H 1 1.00 0.099269 C 6 0.16 0.193710 N 7 0.04 0.053270 O 8 0.41 0.653751 * calculated from mass fraction data. Explanation of some entries

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(Yb) (Yb) Quantity Value Units Value Units Atomic number 70 Atomic mass 173.054(5) g mole-1 Density 6.90 g cm-3 Mean excitation energy 684.0 eV Minimum ionization 1.159 MeV g-1cm2 8.001 MeV cm-1 Nuclear collision length 108.6 g cm-2 15.73 cm Nuclear interaction length 188.2 g cm-2 27.26 cm Pion collision length 132.2 g cm-2 19.15 cm Pion interaction length 215.1 g cm-2 31.16 cm Radiation length 7.02 g cm-2 1.017 cm Critical energy 8.52 MeV (for e-) 8.22 MeV (for e+) Molière radius 17.47 g cm-2 2.531 cm Plasma energy 48.15 eV Muon critical energy 161. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries Table of isotopes Warning: may not be current

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(K ) (K ) Quantity Value Units Value Units Atomic number 19 Atomic mass 39.0983(1) g mole-1 Density 0.862 g cm-3 Mean excitation energy 190.0 eV Minimum ionization 1.623 MeV g-1cm2 1.399 MeV cm-1 Nuclear collision length 75.4 g cm-2 87.44 cm Nuclear interaction length 119.0 g cm-2 138.0 cm Pion collision length 101.0 g cm-2 117.2 cm Pion interaction length 148.1 g cm-2 171.8 cm Radiation length 17.32 g cm-2 20.09 cm Critical energy 31.62 MeV (for e-) 30.72 MeV (for e+) Molière radius 11.61 g cm-2 13.47 cm Plasma energy 18.65 eV Muon critical energy 472. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries

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Europium (Eu) Europium (Eu) Quantity Value Units Value Units Atomic number 63 Atomic mass 151.964(1) g mole-1 Density 5.24 g cm-3 Mean excitation energy 580.0 eV Minimum ionization 1.219 MeV g-1cm2 6.389 MeV cm-1 Nuclear collision length 104.8 g cm-2 19.99 cm Nuclear interaction length 180.4 g cm-2 34.41 cm Pion collision length 128.7 g cm-2 24.54 cm Pion interaction length 207.5 g cm-2 39.58 cm Radiation length 7.44 g cm-2 1.419 cm Critical energy 9.59 MeV (for e-) 9.26 MeV (for e+) Molière radius 16.44 g cm-2 3.135 cm Plasma energy 42.48 eV Muon critical energy 175. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries

179

 

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Cortical bone (ICRP) Cortical bone (ICRP) Quantity Value Units Value Units 0.52130 Density 1.85 g cm-3 Mean excitation energy 106.4 eV Minimum ionization 1.803 MeV g-1cm2 3.336 MeV cm-1 Nuclear collision length 63.2 g cm-2 34.18 cm Nuclear interaction length 93.0 g cm-2 50.28 cm Pion collision length 90.4 g cm-2 48.87 cm Pion interaction length 124.8 g cm-2 67.45 cm Radiation length 27.42 g cm-2 14.82 cm Critical energy 53.99 MeV (for e-) 52.49 MeV (for e+) Molière radius 10.77 g cm-2 5.820 cm Plasma energy 28.30 eV Muon critical energy 749. GeV Composition: Elem Z Atomic frac* Mass frac* H 1 1.00 0.047234 C 6 0.26 0.144330 N 7 0.06 0.041990 O 8 0.59 0.446096 Mg 12 0.00 0.002200 P 15 0.07 0.104970 S 16 0.00 0.003150

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Standard rock Standard rock Quantity Value Units Value Units 0.50000 Density 2.65 g cm-3 Mean excitation energy 136.4 eV Minimum ionization 1.688 MeV g-1cm2 4.472 MeV cm-1 Nuclear collision length 66.8 g cm-2 25.23 cm Nuclear interaction length 101.3 g cm-2 38.24 cm Pion collision length 92.9 g cm-2 35.05 cm Pion interaction length 130.9 g cm-2 49.40 cm Radiation length 26.54 g cm-2 10.02 cm Critical energy 49.13 MeV (for e-) 47.74 MeV (for e+) Molière radius 11.46 g cm-2 4.323 cm Plasma energy 33.17 eV Muon critical energy 693. GeV Composition: Elem Atomic frac* Mass frac Z = 11, A = 22.00 1.00 1.000000 Along with density above, definition of standard rock Explanation of some entries For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT

Note: This page contains sample records for the topic "mev g-1cm2 nuclear" from the National Library of EnergyBeta (NLEBeta).
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Molybdenum (Mo) Molybdenum (Mo) Quantity Value Units Value Units Atomic number 42 Atomic mass 95.96(2) g mole-1 Density 10.2 g cm-3 Mean excitation energy 424.0 eV Minimum ionization 1.329 MeV g-1cm2 13.59 MeV cm-1 Nuclear collision length 93.0 g cm-2 9.105 cm Nuclear interaction length 155.8 g cm-2 15.25 cm Pion collision length 117.7 g cm-2 11.51 cm Pion interaction length 183.8 g cm-2 17.98 cm Radiation length 9.81 g cm-2 0.9594 cm Critical energy 13.85 MeV (for e-) 13.39 MeV (for e+) Molière radius 15.01 g cm-2 1.469 cm Plasma energy 60.94 eV Muon critical energy 235. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries

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(Al) (Al) Quantity Value Units Value Units Atomic number 13 Atomic mass 26.9815386(8) g mole-1 Density 2.70 g cm-3 Mean excitation energy 166.0 eV Minimum ionization 1.615 MeV g-1cm2 4.358 MeV cm-1 Nuclear collision length 69.7 g cm-2 25.82 cm Nuclear interaction length 107.2 g cm-2 39.70 cm Pion collision length 95.6 g cm-2 35.41 cm Pion interaction length 136.7 g cm-2 50.64 cm Radiation length 24.01 g cm-2 8.897 cm Critical energy 42.70 MeV (for e-) 41.48 MeV (for e+) Molière radius 11.93 g cm-2 4.419 cm Plasma energy 32.86 eV Muon critical energy 612. GeV Melting point 933.5 K 660.3 C Boiling point @ 1 atm 2792. K 2519. C For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT

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(Gd) (Gd) Quantity Value Units Value Units Atomic number 64 Atomic mass 157.25(3) g mole-1 Density 7.90 g cm-3 Mean excitation energy 591.0 eV Minimum ionization 1.188 MeV g-1cm2 9.383 MeV cm-1 Nuclear collision length 105.8 g cm-2 13.39 cm Nuclear interaction length 182.4 g cm-2 23.09 cm Pion collision length 129.6 g cm-2 16.40 cm Pion interaction length 209.5 g cm-2 26.52 cm Radiation length 7.48 g cm-2 0.9472 cm Critical energy 9.34 MeV (for e-) 9.01 MeV (for e+) Molière radius 17.00 g cm-2 2.151 cm Plasma energy 51.67 eV Muon critical energy 171. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries Table of isotopes Warning: may not be current

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Gold (Au) Gold (Au) Quantity Value Units Value Units Atomic number 79 Atomic mass 196.966569(4) g mole-1 Density 19.3 g cm-3 Mean excitation energy 790.0 eV Minimum ionization 1.134 MeV g-1cm2 21.90 MeV cm-1 Nuclear collision length 112.5 g cm-2 5.822 cm Nuclear interaction length 196.3 g cm-2 10.16 cm Pion collision length 135.8 g cm-2 7.031 cm Pion interaction length 223.0 g cm-2 11.54 cm Radiation length 6.46 g cm-2 0.3344 cm Critical energy 7.53 MeV (for e-) 7.26 MeV (for e+) Molière radius 18.19 g cm-2 0.9415 cm Plasma energy 80.21 eV Muon critical energy 143. GeV Melting point 1337. K 1064. C Boiling point @ 1 atm 3129. K 2856. C For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT

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Adipose tissue (ICRP) Adipose tissue (ICRP) Quantity Value Units Value Units 0.55947 Density 0.920 g cm-3 Mean excitation energy 63.2 eV Minimum ionization 2.029 MeV g-1cm2 1.867 MeV cm-1 Nuclear collision length 57.1 g cm-2 62.06 cm Nuclear interaction length 80.5 g cm-2 87.55 cm Pion collision length 84.6 g cm-2 92.01 cm Pion interaction length 112.5 g cm-2 122.3 cm Radiation length 41.73 g cm-2 45.36 cm Critical energy 92.67 MeV (for e-) 90.23 MeV (for e+) Molière radius 9.55 g cm-2 10.38 cm Plasma energy 20.67 eV Muon critical energy 1184. GeV Composition: Elem Z Atomic frac* Mass frac* H 1 1.00 0.119477 C 6 0.45 0.637240 N 7 0.00 0.007970 O 8 0.12 0.232333 Na 11 0.00 0.000500 Mg 12 0.00 0.000020 P 15 0.00

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liquid) (H2O) liquid) (H2O) Quantity Value Units Value Units 0.55509 Density 1.00 g cm-3 Mean excitation energy 79.7 eV Minimum ionization 1.981 MeV g-1cm2 1.981 MeV cm-1 Nuclear collision length 58.5 g cm-2 58.50 cm Nuclear interaction length 83.3 g cm-2 83.33 cm Pion collision length 86.0 g cm-2 86.00 cm Pion interaction length 115.2 g cm-2 115.2 cm Radiation length 36.08 g cm-2 36.08 cm Critical energy 78.33 MeV (for e-) 76.24 MeV (for e+) Molière radius 9.77 g cm-2 9.768 cm Plasma energy 21.47 eV Muon critical energy 1029. GeV Melting point 273.1 K 0.000E+00 C Boiling point @ 1 atm 373.1 K 99.96 C Index of refraction (@ STP, Na D) 1.33 Composition: Elem Z Atomic frac* Mass frac*

187

Research Programme for the 660 Mev Proton Accelerator Driven MOX-Plutonium Subcritical Assembly  

E-Print Network (OSTI)

The paper presents a research programme of the Experimental Acclerator Driven System (ADS), which employs a subcritical assembly and a 660 MeV proton acceletator operating at the Laboratory of Nuclear Problems of the JINR, Dubna. MOX fuel (25% PuO_2 + 75% UO_2) designed for the BN-600 reactor use will be adopted for the core of the assembly. The present conceptual design of the experimental subcritical assembly is based on a core of a nominal unit capacity of 15 kW (thermal). This corresponds to the multiplication coefficient k_eff = 0.945, energetic gain G = 30 and the accelerator beam power 0.5 kW.

Barashenkov, V S; Buttseva, G L; Dudarev, S Yu; Polanski, A; Puzynin, I V; Sissakian, A N

2000-01-01T23:59:59.000Z

188

Evaluated Nuclear Data  

Science Conference Proceedings (OSTI)

This chapter describes the current status of evaluated nuclear data for nuclear technology applications. We start with evaluation procedures for neutron-induced reactions focusing on incident energies from the thermal energy up to 20 MeV, though higher energies are also mentioned. This is followed by examining the status of evaluated neutron data for actinides that play dominant role in most of the applications, followed by coolants/moderators, structural materials and fission products. We then discuss neutron covariance data that characterize uncertainties and correlations. We explain how modern nuclear evaluated data libraries are validated against an extensive set of integral benchmark experiments. Afterwards, we briefly examine other data of importance for nuclear technology, including fission yields, thermal neutron scattering and decay data. A description of three major evaluated nuclear data libraries is provided, including the latest version of the US library ENDF/B-VII.0, European JEFF-3.1 and Japanese JENDL-3.3. A brief introduction is made to current web retrieval systems that allow easy access to a vast amount of up-to-date evaluated nuclear data for nuclear technology applications.

Oblozinsky, P.; Oblozinsky,P.; Herman,M.; Mughabghab,S.F.

2010-10-01T23:59:59.000Z

189

Occupation-number-based energy functional for nuclear masses  

Science Conference Proceedings (OSTI)

We develop an energy functional with shell-model occupations as the relevant degrees of freedom and compute nuclear masses across the nuclear chart. The functional is based on Hohenberg-Kohn theory with phenomenologically motivated terms. A global fit of the 17-parameter functional to 2049 nuclear masses yields a root-mean-square deviation of =1.31 MeV. Nuclear radii are computed within a model that employs the resulting occupation numbers.

Bertolli, Michael G. [University of Tennessee, Knoxville (UTK); Papenbrock, Thomas F [ORNL; Wild, S. M. [Argonne National Laboratory (ANL)

2012-01-01T23:59:59.000Z

190

Occupation number-based energy functional for nuclear masses  

E-Print Network (OSTI)

We develop an energy functional with shell-model occupations as the relevant degrees of freedom and compute nuclear masses across the nuclear chart. The functional is based on Hohenberg-Kohn theory with phenomenologically motivated terms. A global fit of the 17-parameter functional to nuclear masses yields a root-mean-square deviation of \\chi = 1.31 MeV. Nuclear radii are computed within a model that employs the resulting occupation numbers.

Bertolli, M; Wild, S

2011-01-01T23:59:59.000Z

191

Occupation number-based energy functional for nuclear masses  

E-Print Network (OSTI)

We develop an energy functional with shell-model occupations as the relevant degrees of freedom and compute nuclear masses across the nuclear chart. The functional is based on Hohenberg-Kohn theory with phenomenologically motivated terms. A global fit of the 17-parameter functional to nuclear masses yields a root-mean-square deviation of \\chi = 1.31 MeV. Nuclear radii are computed within a model that employs the resulting occupation numbers.

M. Bertolli; T. Papenbrock; S. Wild

2011-10-19T23:59:59.000Z

192

Tunable nanometer electrode gaps by MeV ion irradiation  

Science Conference Proceedings (OSTI)

We report the use of MeV ion-irradiation-induced plastic deformation of amorphous materials to fabricate electrodes with nanometer-sized gaps. Plastic deformation of the amorphous metal Pd{sub 80}Si{sub 20} is induced by 4.64 MeV O{sup 2+} ion irradiation, allowing the complete closing of a sub-micrometer gap. We measure the evolving gap size in situ by monitoring the field emission current-voltage (I-V) characteristics between electrodes. The I-V behavior is consistent with Fowler-Nordheim tunneling. We show that using feedback control on this signal permits gap size fabrication with atomic-scale precision. We expect this approach to nanogap fabrication will enable the practical realization of single molecule controlled devices and sensors.

Cheang-Wong, J.-C.; Narumi, K.; Schuermann, G. M. [Department of Physics, Harvard University, Cambridge, Massachusetts 02138 (United States); Aziz, M. J. [School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138 (United States); Golovchenko, J. A. [Department of Physics, Harvard University, Cambridge, Massachusetts 02138 (United States); School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138 (United States)

2012-04-09T23:59:59.000Z

193

High brightness sources for MeV microprobe applications  

Science Conference Proceedings (OSTI)

State of the art MeV ion microprobe facilities are now approaching current density limitations on targets imposed by the fundamental nature of conventional gaseous ion sources. With a view to addressing this problem efforts are under way which have the ultimate objective of developing high brightness Li liquid metal ion sources suitable for MeV ion microprobe applications. Prototype Li/sup +/ and Ga/sup +/ liquid metal ion sources have been designed, fabricated and are undergoing preliminary testing. This paper describes the first total emittance and brightness measurements of a Ga liquid metal ion source. The effect of the geometry of the ion extraction system is investigated and the brightness data are compared to those of a radio frequency ion source.

Read, P.M.; Alton, G.D.; Maskrey, J.T.

1987-01-01T23:59:59.000Z

194

Fission studies with 140 MeV $\\bm?$-Particles  

E-Print Network (OSTI)

Binary fission induced by 140 MeV $\\alpha$-particles has been measured for $^{\\rm nat}$Ag, $^{139}$La, $^{165}$Ho and $^{197}$Au targets. The measured quantities are the total kinetic energies, fragment masses, and fission cross sections. The results are compared with other data and systematics. A minimum of the fission probability in the vicinity $Z^2/A=24$ is observed.

A. Buttkewitz; H. H. Duhm; F. Goldenbaum; H. Machner; W. Strauss

2009-07-23T23:59:59.000Z

195

Cross sections and analyzing powers of sup 15 N(p,n) sup 15 O at 200 MeV and 494 MeV  

SciTech Connect

Differential cross sections and analyzing powers have been measured for the {sup 15}N(p,n){sup 15} O(g.s.) reaction at bombarding energies of 200 MeV and 494 MeV. The 494 MeV data were obtained at the LAMPF Neutron Time-Of-Flight Facility on an 82 m flight path with a resolution of about 2.7 MeV. The 200 MeV data were obtained at IUCF on a 76m flight path with a resolution of about 1.1 MeV. At both energies, the measured analyzing power is small, the magnitude is less than .2 for momentum transfers of less than 1 fm{sup {minus}1}. In contrast, both Relativistic and standard DWIA calculations predict a maximum of A={minus}.7 near q=0.7 fm{sup {minus}1}. 53 refs., 44 figs.

Ciskowski, D.E. (Los Alamos National Lab., NM (USA))

1989-11-01T23:59:59.000Z

196

Application of nuclear models to neutron nuclear cross section calculations  

Science Conference Proceedings (OSTI)

Nuclear theory is used increasingly to supplement and extend the nuclear data base that is available for applied studies. Areas where theoretical calculations are most important include the determination of neutron cross sections for unstable fission products and transactinide nuclei in fission reactor or nuclear waste calculations and for meeting the extensive dosimetry, activation, and neutronic data needs associated with fusion reactor development, especially for neutron energies above 14 MeV. Considerable progress has been made in the use of nuclear models for data evaluation and, particularly, in the methods used to derive physically meaningful parameters for model calculations. Theoretical studies frequently involve use of spherical and deformed optical models, Hauser-Feshbach statistical theory, preequilibrium theory, direct-reaction theory, and often make use of gamma-ray strength function models and phenomenological (or microscopic) level density prescriptions. The development, application, and limitations of nuclear models for data evaluation are discussed, with emphasis on the 0.1 to 50 MeV energy range. (91 references).

Young, P.G.

1982-01-01T23:59:59.000Z

197

Nuclear data for nuclear transmutation  

Science Conference Proceedings (OSTI)

Current status on nuclear data for the study of nuclear transmutation of radioactive wastes is reviewed

Hideo Harada

2009-01-01T23:59:59.000Z

198

Evolution of the N = 28 shell closure: a test bench for nuclear forces  

E-Print Network (OSTI)

Evolution of the N = 28 shell closure: a test bench for nuclear forces O. Sorlin1 and M.-G. Porquet;The N = 28 shell closure: a test bench for nuclear forces 2 reach a value of 4.8 MeV. This effect has and 90). More generally, questions related to the evolution of nuclear forces towards the drip

Paris-Sud XI, Université de

199

neutronlethargyflux(n.cm2 neutron energy (MeV)  

E-Print Network (OSTI)

at the Los Alamos Neutron Science Center (LANSCE). It will be unique among nuclear fuel irradiation at Idaho National Laboratory for fabrication of metallic nuclear fuels rods. A small bench scale caster and emission applications, and study their optical properties. Colloidal nanomaterials for light harvesting

200

Coulomb and nuclear breakup of $^8$B  

E-Print Network (OSTI)

The cross sections for the ($^8$B,$^7$Be-$p$) breakup reaction on $^{58}$Ni and $^{208}$Pb targets at the beam energies of 25.8 MeV and 415 MeV have been calculated within a one-step prior-form distorted-wave Born approximation. The relative contributions of Coulomb and nuclear breakup of dipole and quadrupole multipolarities as well as their interference have been determined. The nuclear breakup contributions are found to be substantial in the angular distributions of the $^7$Be fragment for angles in the range of 30$^\\circ$ - 80$^\\circ$ at 25.8 MeV beam energy. The Coulomb-nuclear interference terms make the dipole cross section larger than that of quadrupole even at this low beam energy. However, at the incident energy of 415 MeV, these effects are almost negligible in the angular distributions of the ($^7$Be-p) coincidence cross sections at angles below 4$^\\circ$.

R. Shyam; I. J. Thompson

1998-08-27T23:59:59.000Z

Note: This page contains sample records for the topic "mev g-1cm2 nuclear" from the National Library of EnergyBeta (NLEBeta).
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201

Nuclear & Uranium  

U.S. Energy Information Administration (EIA)

Nuclear & Uranium. Uranium fuel ... nuclear reactors, generation, spent fuel. Total Energy. Comprehensive data summaries, comparisons, analysis, and projections ...

202

Nuclear power and nuclear weapons  

SciTech Connect

The proliferation of nuclear weapons and the expanded use of nuclear energy for the production of electricity and other peaceful uses are compared. The difference in technologies associated with nuclear weapons and nuclear power plants are described.

Vaughen, V.C.A.

1983-01-01T23:59:59.000Z

203

Shielding measurements for a 230 MeV proton beam  

SciTech Connect

Energetic secondary neutrons produced as protons interact with accelerator components and patients dominate the radiation shielding environment for proton radiotherapy facilities. Due to the scarcity of data describing neutron production, attenuation, absorbed dose, and dose equivalent values, these parameters were measured for 230 MeV proton bombardment of stopping length Al, Fe, and Pb targets at emission angles of 0{degree}, 22{degree}, 45{degree}, and 90{degree} in a thick concrete shield. Low pressure tissue-equivalent proportional counters with volumes ranging from 1 cm{sup 3} to 1000 cm{sup 3} were used to obtain microdosimetric spectra from which absorbed dose and radiation quality are deduced. Does equivalent values and attenuation lengths determined at depth in the shield were found to vary sharply with angle, but were found to be independent of target material. Neutron dose and radiation length values are compared with Monte Carlo neutron transport calculations performed using the Los Alamos High Energy Transport Code (LAHET). Calculations used 230 MeV protons incident upon an Fe target in a shielding geometry similar to that used in the experiment. LAHET calculations overestimated measured attenuation values at 0{degree}, 22{degree}, and 45{degree}, yet correctly predicted the attenuation length at 90{degree}. Comparison of the mean radiation quality estimated with the Monte Carlo calculations with measurements suggest that neutron quality factors should be increased by a factor of 1.4. These results are useful for the shielding design of new facilities as well as for testing neutron production and transport calculations.

Siebers, J.V.

1990-01-01T23:59:59.000Z

204

7-MeV Neutron Interrogation: Scanner for Detection of Special ...  

Medium-energy (3-7 MeV) neutrons are utilized to provide enhanced cargo penetration and reduced activation of cargo materials that would interfere with detection;

205

Experimental Neutron-Induced Fission Fragment Mass Yields of 232Th and 238U at Energies from 10 to 33 MeV  

E-Print Network (OSTI)

Development of nuclear energy applications requires data for neutron-induced reactions for actinides in a wide neutron energy range. Here we describe measurements of pre-neutron emission fission fragment mass yields of 232Th and 238U at incident neutron energies from 10 to 33 MeV. The measurements were done at the quasi-monoenergetic neutron beam of the Louvain-la-Neuve cyclotron facility CYCLONE; a multi-section twin Frisch-gridded ionization chamber was used to detect fission fragments. For the peak neutron energies at 33, 45 and 60 MeV, the details of the data analysis and the experimental results have been published before and in this work we present data analysis in the low-energy tail of the neutron energy spectra. The preliminary measurement results are compared with available experimental data and theoretical predictions.

V. D. Simutkin; S. Pomp; J. Blomgren; M. Österlund; R. Bevilacqua; I. V. Ryzhov; G. A. Tutin; S. G. Yavshits; L. A. Vaishnene; M. S. Onegin; J. P. Meulders; R. Prieels

2013-04-08T23:59:59.000Z

206

Related Resources - Nuclear Data Program, Nuclear Engineering...  

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207

Publications: Other Resources - Nuclear Data Program - Nuclear...  

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208

Publications 2005 - Nuclear Data Program - Nuclear Engineering...  

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209

Publications 2003 - Nuclear Data Program - Nuclear Engineering...  

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210

Contacts - Nuclear Data Program, Nuclear Engineering Division...  

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Nuclear Safety Materials Disposition Decontamination & Decommissioning Nuclear Criticality Safety Nuclear Data Program Nuclear Waste Form Modeling Departments Engineering...

211

Publications 2001 - Nuclear Data Program - Nuclear Engineering...  

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Nuclear Safety Materials Disposition Decontamination & Decommissioning Nuclear Criticality Safety Nuclear Data Program Nuclear Waste Form Modeling Departments Engineering...

212

Publications 2004 - Nuclear Data Program - Nuclear Engineering...  

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Nuclear Safety Materials Disposition Decontamination & Decommissioning Nuclear Criticality Safety Nuclear Data Program Nuclear Waste Form Modeling Departments Engineering...

213

Publications 2009 - Nuclear Data Program - Nuclear Engineering...  

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Nuclear Safety Materials Disposition Decontamination & Decommissioning Nuclear Criticality Safety Nuclear Data Program Nuclear Waste Form Modeling Departments Engineering...

214

Nuclear Criticality Safety: Current Activities - Nuclear Engineering...  

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Nuclear Safety Materials Disposition Decontamination & Decommissioning Nuclear Criticality Safety Nuclear Data Program Nuclear Waste Form Modeling Departments Engineering...

215

Nuclear Criticality Safety - Nuclear Engineering Division (Argonne...  

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Nuclear Safety Materials Disposition Decontamination & Decommissioning Nuclear Criticality Safety Nuclear Data Program Nuclear Waste Form Modeling Departments Engineering...

216

Nuclear Systems Analysis - Nuclear Engineering Division (Argonne...  

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Nuclear Safety Materials Disposition Decontamination & Decommissioning Nuclear Criticality Safety Nuclear Data Program Nuclear Waste Form Modeling Departments Engineering...

217

Publications 2011 - Nuclear Data Program - Nuclear Engineering...  

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Nuclear Safety Materials Disposition Decontamination & Decommissioning Nuclear Criticality Safety Nuclear Data Program Nuclear Waste Form Modeling Departments Engineering...

218

Nuclear Resonance Fluorescence for Nuclear Materials Assay  

E-Print Network (OSTI)

Potential of Nuclear Resonance Fluorescence . . . . . . . .2.9.1 Nuclear ThomsonSections . . . . . . . . . . . . . . . Nuclear Resonance

Quiter, Brian Joseph

2010-01-01T23:59:59.000Z

219

 

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

Californium (Cf) Californium (Cf) Quantity Value Units Atomic number 98 Atomic mass [251.07959(3)] g mole-1 Density ?? g cm-3 Mean excitation energy 966.0 eV Minimum ionization 1.097 MeV g-1cm2 Nuclear collision length 120.4 g cm-2 Nuclear interaction length 212.8 g cm-2 Pion collision length 143.2 g cm-2 Pion interaction length 238.9 g cm-2 Radiation length 5.68 g cm-2 Critical energy 6.53 MeV (for e-) Molière radius 18.45 g cm-2 Plasma energy 67.36 eV Muon critical energy 124. GeV Melting point 1173. K For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries Note: Since there is no stable isotope, [atomic mass] is that of the longest-lived known isotope as of Jan 2007. Note: Density 14.0 g/cm3 and Ieff = 966 eV assumed in calculating critical

220

 

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

Berkelium (Bk) Berkelium (Bk) Quantity Value Units Atomic number 97 Atomic mass [247.07031(4)] g mole-1 Density ?? g cm-3 Mean excitation energy 952.0 eV Minimum ionization 1.106 MeV g-1cm2 Nuclear collision length 119.9 g cm-2 Nuclear interaction length 211.6 g cm-2 Pion collision length 142.7 g cm-2 Pion interaction length 237.8 g cm-2 Radiation length 5.69 g cm-2 Critical energy 6.59 MeV (for e-) Molière radius 18.32 g cm-2 Plasma energy 67.56 eV Muon critical energy 125. GeV Melting point 1269. K For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries Note: Since there is no stable isotope, [atomic mass] is that of the longest-lived known isotope as of Jan 2007. Table of isotopes Warning: may not be current

Note: This page contains sample records for the topic "mev g-1cm2 nuclear" 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
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221

 

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

Lawrencium (Lr) Lawrencium (Lr) Quantity Value Units Atomic number 103 Atomic mass [262.110(2)] g mole-1 Density ?? g cm-3 Mean excitation energy 1034.0 eV Minimum ionization 1.096 MeV g-1cm2 Nuclear collision length 121.9 g cm-2 Nuclear interaction length 215.8 g cm-2 Pion collision length 144.6 g cm-2 Pion interaction length 241.8 g cm-2 Radiation length 5.45 g cm-2 Critical energy 6.26 MeV (for e-) Molière radius 18.48 g cm-2 Plasma energy 67.59 eV Muon critical energy 120. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries Note: Since there is no stable isotope, [atomic mass] is that of the longest-lived known isotope as of Jan 2007. Note: Density 14.0 g/cm3 and Ieff = Z*10.0 eV assumed in calculating

222

 

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

Hassium (Hs) Hassium (Hs) Quantity Value Units Atomic number 108 Atomic mass [269.13410000(1)] g mole-1 Density ?? g cm-3 Mean excitation energy 1102.0 eV Minimum ionization 1.110 MeV g-1cm2 Nuclear collision length 122.8 g cm-2 Nuclear interaction length 217.7 g cm-2 Pion collision length 145.5 g cm-2 Pion interaction length 243.7 g cm-2 Radiation length 5.17 g cm-2 Critical energy 6.01 MeV (for e-) Molière radius 18.24 g cm-2 Plasma energy 68.30 eV Muon critical energy 119. GeV For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries Note: Since there is no stable isotope, [atomic mass] is that of the longest-lived known isotope as of Jan 2007. Note: Density 14.0 g/cm3 and Ieff = 1102 eV assumed in calculating critical

223

 

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

Fermium (Fm) Fermium (Fm) Quantity Value Units Atomic number 100 Atomic mass [257.09510(5)] g mole-1 Density ?? g cm-3 Mean excitation energy 994.0 eV Minimum ionization 1.090 MeV g-1cm2 Nuclear collision length 121.2 g cm-2 Nuclear interaction length 214.5 g cm-2 Pion collision length 144.0 g cm-2 Pion interaction length 240.5 g cm-2 Radiation length 5.62 g cm-2 Critical energy 6.42 MeV (for e-) Molière radius 18.57 g cm-2 Plasma energy 67.24 eV Muon critical energy 122. GeV Melting point 273.1 K For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT Table of muon dE/dx and Range: PS PDF TEXT Explanation of some entries Note: Since there is no stable isotope, [atomic mass] is that of the longest-lived known isotope as of Jan 2007. Note: Density 14.0 g/cm3 and Ieff = 994 eV assumed in calculating critical

224

A PROPOSAL FOR THE Mc$sup 2$ ISOCHRONOUS CYCLOTRON. A GENERAL PURPOSE HIGH- INTENSITY 810-Mev PROTON ACCELERATOR  

SciTech Connect

An isochronous eight-sector proton cyclotron to provide an extracted beam in excess of 100 mu amp at 810 Mev is proposed. The primary proton beam and the secondary meson and neutron beams will be used to investigate nuclear structure and the interactions between elementary particles. Biomedical and space-oriented research programs are also planned. Shielded research areas and an extensive beam transport and analysis system are provided. Theoretical and experimental studies have shown that the Mc/sup 2/ Cyclotron in a practival concept; high extraction efficiencies can be obtained, and the residual radiation problems are manageable. The project would require less than seven years to complete and would cost about ,000,000. (auth)

1963-11-01T23:59:59.000Z

225

Are There MeV Gamma-Ray Bursts?  

E-Print Network (OSTI)

It is often stated that gamma-ray bursts (GRBs) have typical energies of several hundred keV. Is this a real feature of GRBs or is it due to an observational bias? We consider the possibility that bursts of a given bolometric luminosity occur with a hardness distribution $p(H)d \\log H \\propto H^\\gamma d \\log H$. We model the detection efficiency of BATSE as a function of $H$ and calculate the expected distribution of $H$ in the observed sample for various values of $\\gamma$. We show that because the detection efficiency of BATSE falls steeply with increasing $H$, the paucity of hard bursts need not be real. We find that the observed sample is consistent with a distribution above $H = 100$ keV with $\\gamma \\approx 0$ or even $\\gamma =0.5$. Thus, a large population of unobserved hard gamma-ray bursts may exist. It is important to extend the present analysis to a larger sample of BATSE bursts and to include the OSSE and COMPTEL limits. If the full sample is consistent with $\\gamma\\ \\sgreat\\ 0$, then it would be interesting to look for MeV bursts in the future.

Tsvi Piran; Ramesh Narayan

1995-12-19T23:59:59.000Z

226

Automated startup of the CEBAF 45 MeV injector  

Science Conference Proceedings (OSTI)

In order to improve the speed and reproducibility of restoring the beam in the Continuous Electron Beam Accelerator Facility (CEBAF) 45 MeV injector after a full or partial shutdown of the accelerator, a program has been written using the Tcl/Tk scripting language to automate most of the required steps. The procedure is separated into four main parts. The first part performs preliminary checks that verify that the hardware is set correctly and then turns on the main interlocked systems including high power magnets and RF. The second step turns on the gun high voltage. The final steps turn on the beam and verify that the beam quality is satisfactory by measuring the transmission, orbit, transverse beam size, and bunch length. Minor corrections for phasing are also performed in the program. In order to identify inefficiencies in the startup, each is timed and parameter changes are logged so that system drifts can be tracked. This paper describes the software implementation, the logic to achieve a successful startup, and efficiency results.

Kehne, D.; Letta, P.; Dunham, B.; Kazimi, R.

1997-12-01T23:59:59.000Z

227

Nuclear Reactions  

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

Reactions Nuclear reactions and nuclear scattering are used to measure the properties of nuclei. Reactions that exchange energy or nucleons can be used to measure the energies of...

228

Nuclear Safety  

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

Nuclear Safety information site that provides assistance and resources to field elements in implementation of requirements and resolving nuclear safety, facility safety, and quality assurance issues.

229

Nuclear Materials  

Science Conference Proceedings (OSTI)

Materials and Fuels for the Current and Advanced Nuclear Reactors III ... response of oxide ceramics for nuclear applications through experiment, theory, and ...

230

Liquid-gas phase transition and Coulomb instability of asymmetric nuclear systems  

E-Print Network (OSTI)

We use a chiral SU(3) quark mean field model to study the properties of nuclear systems at finite temperature. The liquid-gas phase transition of symmetric and asymmetric nuclear matter is discussed. For two formulations of the model the critical temperature, $T_c$, for symmetric nuclear matter is found to be 15.8 MeV and 17.9 MeV. These values are consistent with those derived from recent experiments. The limiting temperatures for finite nuclei are in good agreement with the experimental points.

P. Wang; D. B. Leinweber; A. W. Thomas; A. G. Williams

2004-07-20T23:59:59.000Z

231

Nuclear Data Sheets for A = 230  

SciTech Connect

The evaluators present in this publication spectroscopic data and level schemes from radioactive decay and nuclear reactions for all isobars with mass number A=230. This evaluation includes the first experimental evidence of 230Am, produced through the 197Au(40Ar,3n)234Bk (α decay to 230Am) reaction, E(40Ar)=188.4 MeV (2003MoZX).

Browne, E.; Tuli, J. K.

2012-09-01T23:59:59.000Z

232

Report to the DOE Nuclear Data Committee, 1991  

SciTech Connect

This document provides a discussion of charged-particle evaluations for applications; advanced modeling of reaction cross sections for light nuclei; thermonuclear data file (TDF) -- a processed file for thermonuclear applications; evaluation of (n,2n) reactions on isotopes of Y and Zr; extension of the LLNL evaluated nuclear database (ENDL) to 30 MeV; and calculated kerma values. (LSP)

Resler, D.A.; White, R.M.

1991-03-01T23:59:59.000Z

233

Critical Temperature for the Nuclear Liquid-Gas Phase Transition  

E-Print Network (OSTI)

The charge distribution of the intermediate mass fragments produced in p (8.1 GeV) + Au collisions is analyzed in the framework of the statistical multifragmentation model with the critical temperature for the nuclear liquid-gas phase transition $T_c$ as a free parameter. It is found that $T_c=20\\pm3$ MeV (90% CL).

V. A. Karnaukhov; H. Oeschler; S. P. Avdeyev; E. V. Duginova; V. K. Rodionov; A. Budzanowski; W. Karcz; O. V. Bochkarev; E. A. Kuzmin; L. V. Chulkov; E. Norbeck; A. S. Botvina

2003-02-07T23:59:59.000Z

234

Thermodynamic properties of nuclear matter at finite temperature  

E-Print Network (OSTI)

A self-consistent approach based on finite temperature Green's functions is used to investigate thermodynamic properties of nuclear matter. The internal energy is derived from the diagrams associated to the interaction energy. Pressure and entropy up to T=20 MeV are obtained from the generating functional form of the thermodynamic potential.

V. Soma; P. Bozek

2006-09-17T23:59:59.000Z

235

Spermatogonia survival in mice after exposure to low doses of $^{60}$Co gamma-ray neutrons of 14 MeV and 400 MeV and neutrons from a Pu Be source  

E-Print Network (OSTI)

Spermatogonia survival in mice after exposure to low doses of $^{60}$Co gamma-ray neutrons of 14 MeV and 400 MeV and neutrons from a Pu

Quintiliani, M; Baarli, Johan

1977-01-01T23:59:59.000Z

236

Nuclear Matter and Nuclear Dynamics  

E-Print Network (OSTI)

Highlights on the recent research activity, carried out by the Italian Community involved in the "Nuclear Matter and Nuclear Dynamics" field, will be presented.

M Colonna

2009-02-26T23:59:59.000Z

237

Fission and Nuclear Liquid-Gas Phase Transition  

E-Print Network (OSTI)

The temperature dependence of the liquid-drop fission barrier is considered, the critical temperature for the liquid-gas phase transition in nuclear matter being a parameter. Experimental and calculated data on the fission probability are compared for highly excited $^{188}$Os. The calculations have been made in the framework of the statistical model. It is concluded that the critical temperature for the nuclear liquid--gas phase transition is higher than 16 MeV.

E. A. Cherepanov; V. A. Karnaukhov

2007-03-30T23:59:59.000Z

238

Detection of Actinides via Nuclear Isomer De-Excitation  

Science Conference Proceedings (OSTI)

This dissertation discusses a data collection experiment within the Actinide Isomer Identification project (AID). The AID project is the investigation of an active interrogation technique that utilizes nuclear isomer production, with the goal of assisting in the interdiction of illicit nuclear materials. In an attempt to find and characterize isomers belonging to 235U and its fission fragments, a 232Th target was bombarded with a monoenergetic 6Li ion beam, operating at 45 MeV.

Francy, Christopher J.

2009-07-22T23:59:59.000Z

239

Nuclear photonics  

Science Conference Proceedings (OSTI)

With the planned new ?-beam facilities like MEGa-ray at LLNL (USA) or ELI-NP at Bucharest (Romania) with 1013 ?/s and a band width of ?E?/E??10 ?3 a new era of ? beams with energies up to 20MeV comes into operation

2012-01-01T23:59:59.000Z

240

Experimental demonstration of high quality MeV ultrafast electron diffraction  

SciTech Connect

The simulation optimization and an experimental demonstration of improved performances of mega-electron-volt ultrafast electron diffraction (MeV UED) are reported in this paper. Using ultrashort high quality electron pulses from an S-band photocathode rf gun and a polycrystalline aluminum foil as the sample, we experimentally demonstrated an improved spatial resolution of MeV UED, in which the Debye-Scherrer rings of the (111) and (200) planes were clearly resolved. This result showed that MeV UED is capable to achieve an atomic level spatial resolution and a -100 fs temporal resolution simultaneously, and will be a unique tool for ultrafast structural dynamics studies.

Li, R.; Tang, C., Du, Y., Huang, W., Du, Q., Shi, J., Yan, L., Wang, X.

2009-08-18T23:59:59.000Z

Note: This page contains sample records for the topic "mev g-1cm2 nuclear" 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

Fusion Nuclear Science | ORNL  

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

Nuclear Systems Modeling, Simulation & Validation Nuclear Systems Technology Reactor Technology Nuclear Science Home | Science & Discovery | Nuclear Science | Research...

242

Nuclear Analytical Chemistry Portal  

Science Conference Proceedings (OSTI)

NIST Home > Nuclear Analytical Chemistry Portal. Nuclear Analytical Chemistry Portal. ... see all Nuclear Analytical Chemistry news ... ...

2010-08-02T23:59:59.000Z

243

High-energy behavior of the nuclear symmetry potential in asymmetric nuclear matter  

E-Print Network (OSTI)

Using the relativistic impulse approximation with empirical NN scattering amplitude and the nuclear scalar and vector densities from the relativistic mean-field theory, we evaluate the Dirac optical potential for neutrons and protons in asymmetric nuclear matter. From the resulting Schr\\"{o}% dinger-equivalent potential, the high energy behavior of the nuclear symmetry potential is studied. We find that the symmetry potential at fixed baryon density is essentially constant once the nucleon kinetic energy is greater than about 500 MeV. Moreover, for such high energy nucleon, the symmetry potential is slightly negative below a baryon density of about $% \\rho =0.22$ fm$^{-3}$ and then increases almost linearly to positive values at high densities. Our results thus provide an important constraint on the energy and density dependence of nuclear symmetry potential in asymmetric nuclear matter.

Lie-Wen Chen; Che Ming Ko; Bao-An Li

2005-08-24T23:59:59.000Z

244

atomicrpp.dvi  

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

Atomic and nuclear properties of materials 1 6. ATOMIC AND NUCLEAR PROPERTIES OF MATERIALS Table 6.1 Abridged from pdg.lbl.gov/AtomicNuclearProperties by D. E. Groom (2007). See web pages for more detail about entries in this table including chemical formulae, and for several hundred other entries. Quantities in parentheses are for NTP (20 ◦ C and 1 atm), and square brackets indicate quantities evaluated at STP. Boiling points are at 1 atm. Refractive indices n are evaluated at the sodium D line blend (589.2 nm); values ≫1 in brackets are for (n - 1) × 10 6 (gases). Material Z A Z/A Nucl.coll. length λ T {g cm -2 } Nucl.inter. length λ I {g cm -2 } Rad.len. X 0 {g cm -2 } dE/dx| min { MeV g -1 cm 2 } Density {g cm -3 } ({gℓ -1 }) Melting point (K) Boiling point (K) Refract. index (@ Na D) H 2 1 1.00794(7) 0.99212 42.8 52.0 63.04 (4.103) 0.071(0.084) 13.81 20.28 1.11[132.] D 2 1 2.01410177803(8)

245

Reference nuclear data for space applications  

SciTech Connect

The National Nuclear Data Center (NNDC) at Brookhaven National Laboratory is active in the development of high energy data bases for space applications. Validated data and methods of interaction analysis are needed to explain and predict radiation patterns. The NNDC uses methods consisting of nuclear systematics and nuclear model codes to provide neutron and proton induced reaction data from 1 MeV and 1 GeV. The data can placed in convenient form for use by radiation transport codes. In addition to cross-sections, nuclear structure and radioactive decay data are also stored in data bases. Data are distributed by the NNDC in a variety of ways including on-line access through computer networks or telephone lines. 7 refs., 7 figs.

Pearlstein, S.

1987-01-01T23:59:59.000Z

246

Design and Development of the Diagnostic System for 75 MeV Electron...  

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

DEVELOPMENT OF THE DIAGNOSTIC SYSTEM FOR 75 MeV ELECTRON DRIVE BEAM FOR THE AWA UPGRADE* J.G. Power , M.E. Conde, D.S. Doran, W. Gai, R. Konecny, W. Liu, E. Wisniewski, and Z....

247

Voltage holding study of 1 MeV accelerator for ITER neutral beam injectora)  

Science Conference Proceedings (OSTI)

Voltage holding test on MeV accelerator indicated that sustainable voltage was a half of that of ideal quasi-Rogowski electrode. It was suggested that the emission of the clumps is enhanced by a local electric field concentration

M. Taniguchi; M. Kashiwagi; N. Umeda; M. Dairaku; J. Takemoto; H. Tobari; K. Tsuchida; H. Yamanaka; K. Watanabe; A. Kojima; M. Hanada; K. Sakamoto; T. Inoue

2012-01-01T23:59:59.000Z

248

Future of Nuclear Data for Nuclear Astrophysics  

Science Conference Proceedings (OSTI)

Nuclear astrophysics is an exciting growth area in nuclear science. Because of the enormous nuclear data needs of this field

Michael S. Smith

2005-01-01T23:59:59.000Z

249

Nuclear Detonation Detection | National Nuclear Security Administratio...  

National Nuclear Security Administration (NNSA)

Nuclear Nonproliferation Program Offices > Office of Nonproliferation Research & Development > Nuclear Detonation Detection Nuclear Detonation Detection Develop, Demonstrate, and...

250

Countering Nuclear Terrorism | National Nuclear Security Administratio...  

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

Countering Nuclear Terrorism | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response...

251

Chernobyl Nuclear Accident | National Nuclear Security Administration  

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

Chernobyl Nuclear Accident | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response...

252

Nuclear Science  

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

Science Science and Engineering Education Sourcebook 2013 American Nuclear Society US Department of Energy Nuclear Science & Engineering Education Sourcebook 2013 North American Edition American Nuclear Society Education, Training, and Workforce Division US Department of Energy Office of Nuclear Energy Editor and Founder John Gilligan Professor of Nuclear Engineering North Carolina State University Version 5.13 Welcome to the 2013 Edition of the Nuclear Science and Engineering Education (NS&EE) Sourcebook. We have evolved and improved! The core mission of the Sourcebook has not changed, however. Our purpose is to facilitate interaction among faculty, students, industry, and government agencies to accomplish nuclear research, teaching and service activities. Since 1986 we have compiled critical information on nuclear

253

Nuclear forces  

Science Conference Proceedings (OSTI)

These lectures present an introduction into the theory of nuclear forces. We focus mainly on the modern approach

2013-01-01T23:59:59.000Z

254

Nuclear weapons, nuclear effects, nuclear war  

SciTech Connect

This paper provides a brief and mostly non-technical description of the militarily important features of nuclear weapons, of the physical phenomena associated with individual explosions, and of the expected or possible results of the use of many weapons in a nuclear war. Most emphasis is on the effects of so-called ``strategic exchanges.``

Bing, G.F.

1991-08-20T23:59:59.000Z

255

Nuclear Deterrence  

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

Nuclear Deterrence Nuclear Deterrence Nuclear Deterrence LANL's mission is to develop and apply science and technology to ensure the safety, security, and effectiveness of the U.S. nuclear deterrent; reduce global threats; and solve other emerging national security and energy challenges. April 12, 2012 A B-2 Spirit bomber refuels from a KC-135 Stratotanker A B-2 Spirit bomber refuels from a KC-135 Stratotanker. Contact Operator Los Alamos National Laboratory (505) 667-5061 Charlie McMillan, Director: "For the last 70 years there has not been a world war, and I have to think that our strong deterrent has something to do with that fact." Mission nuclear weapons Charlie McMillan, Director of Los Alamos National Laboratory 1:06 Director McMillan on nuclear deterrence While the role and prominence of nuclear weapons in U.S. security policy

256

The low-energy nuclear density of states and the saddle point approximation  

E-Print Network (OSTI)

The nuclear density of states plays an important role in nuclear reactions. At high energies, above a few MeV, the nuclear density of states is well described by a formula that depends on the smooth single particle density of states at the Fermi surface, the nuclear shell correction and the pairing energy. In this paper we present an analysis of the low energy behaviour of the nuclear density of states using the saddle point approximation and extensions to it. Furthermore, we prescribe a simple parabolic form for excitation energy, in the low energy limit, which may facilitate an easy computation of level densities.

Sanjay K. Ghosh; Byron K. Jennings

2001-07-30T23:59:59.000Z

257

Nuclear Data for Criticality Safety and Reactor Applications at the Gaerttner LINAC Center Y. Danon, R.M. Bahran, E.J. Blain, A.M. Daskalakis, B.J. McDermott, D.G. Williams  

E-Print Network (OSTI)

Nuclear Data for Criticality Safety and Reactor Applications at the Gaerttner LINAC Center Y. Danon INTRODUCTION The Rensselaer Polytechnic Institute (RPI) nuclear data program utilizes a 60 MeV pulsed electron Linear Accelerator (LINAC) to produce short pulses of neutrons for nuclear data measurements1 . Neutron

Danon, Yaron

258

Branching ratio measurements of the 7.12-MeV state in 16O  

E-Print Network (OSTI)

Knowledge of the gamma-ray branching ratios of the 7.12-MeV state of 16O is important for the extrapolation of the 12C(a,g)16O cross section to astrophysical energies. Ground state transitions provide most of the 12C(a,g)16O total cross section while cascade transitions have contributions of the order of 10-20%. Determining the 7.12-MeV branching ratio will result in a better extrapolation of the cascade and E2 ground state cross section to low energies. We report here on measurements on the branching ratio of the 7.12-MeV level in 16O.

C. Matei; C. R. Brune

2004-10-25T23:59:59.000Z

259

Above-60-MeV proton acceleration with a 150 TW laser system.  

Science Conference Proceedings (OSTI)

Laser-accelerated proton beams can be used in a variety of applications, e.g. ultrafast radiography of dense objects or strong electromagnetic fields. Therefore high energies of tens of MeV are required. We report on proton-acceleration experiments with a 150 TW laser system using mm-sized thin foils and mass-reduced targets of various thicknesses. Thin- foil targets yielded maximum energies of 50 MeV. A further reduction of the target dimensions from mm-size to 250 x 250 x 25 microns increased the maximum proton energy to >65 MeV, which is comparable to proton energies measured only at higher-energy, Petawatt-class laser systems. The dependence of the maximum energy on target dimensions was investigated, and differences between mm-sized thin foils and mass-reduced targets will be reported.

Sefkow, Adam B.; Atherton, Briggs W.; Geissel, Matthias; Schollmeier, Marius; Rambo, Patrick K.; Schwarz, Jens

2010-12-01T23:59:59.000Z

260

Low energy improvements to the Fermilab 400-MeV linear accelerator  

SciTech Connect

Improvements in the Fermilab operating 400-MeV linear accelerator injector are required to achieve the beam intensity and emittance requirement of the Proton Driver design study [5]. It has been determined that these requirements can be achieved by replacing the components in the Linac below 10 MeV. An improved H{sup {minus}} ion source with an electrostatic transport to a two-section Radio-Frequency Quadrupole (RFQ) accelerator, with the RFQ sections separated by a magnetic five-dimensional phase-space imaging system as used in an earlier Fermilab/SAIC PET Project, and a new 10-MeV drift-tube linac cavity have been studied. It appears possible that an H{sup {minus}} intensity of 4.5 x 10{sup 13} ions per pulse with an improvement in beam emittance from the present system can be achieved with the proposed changes.

Don E. Young et al.

2001-07-02T23:59:59.000Z

Note: This page contains sample records for the topic "mev g-1cm2 nuclear" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

A proposed diagnostic for time-resolved 14 MeV neutron measurements on TFTR  

Science Conference Proceedings (OSTI)

A novel method for time resolved measurements of the 14 MeV neutron flux in an intense 2.5 MeV neutron and {gamma}-ray background has been developed. Discrimination against the background 2.5 MeV neutron and {gamma}-ray flux is achieved by the use of polyethylene and lead shielding. A high detection efficiency of DT neutrons is obtained by the use of large volume plastic scintillators and photomultiplier tube designed for operating in high magnetic field environments. Design computations for a such a detector system on TFTR show that an absolute detection efficiency of {approximately}10{sup {minus}8} counts per DT neutron may be obtained. A source strength of 10{sup 13} DT n/s may readily be detected by this method using both count mode and current mode operation with a resolution of {approximately}10 ms within a statistical accuracy of {approximately}5%. 12 refs., 8 figs., 2 tabs.

Ku, L.P.; Nazikian, R.; Prorvitch, V.

1990-06-01T23:59:59.000Z

262

Nuclear Energy  

Nuclear Energy Environmental Mgmt. Study Objectives: Respond to the pressing need to refine existing corrosion models: Predict performance in wide range of environments

263

Nuclear Reactors  

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

Reactors Nuclear reactors created not only large amounts of plutonium needed for the weapons programs, but a variety of other interesting and useful radioisotopes. They produced...

264

Nuclear Astrophysics  

Science Conference Proceedings (OSTI)

I review progress that has been made in nuclear astrophysics over the past few years and summarize some of the questions that remain. Topics selected include solar neutrinos

W. C. Haxton

2006-01-01T23:59:59.000Z

265

Nuclear & Uranium  

U.S. Energy Information Administration (EIA)

Table 17. Purchases of enrichment services by owners and operators of U.S. civilian nuclear power reactors by contract type in delivery year, 2012

266

Nuclear Weapons  

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

nuclear science that has had a significant global influence. Following the observation of fission products of uranium by Hahn and Strassmann in 1938, a uranium fission weapon...

267

NUCLEAR ENERGY  

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

could improve the economic and safety performance of these advanced reactors. Nuclear power can reduce GHG emissions from electricity production and possibly in co-generation...

268

EQUILIBRATION IN THE REACTION OF 175 and 252 MeV~;;20Ne WITH 197Au  

E-Print Network (OSTI)

and J. R. Huizenga, Nuclear Fission, Academic Press, N.Y. ,nuclear properties such as particle emission, and the systematics of fission

Moulton, James Bennett

2011-01-01T23:59:59.000Z

269

Calculation of excitation function of some structural fusion material for (n,p) reactions up to 25 MeV  

E-Print Network (OSTI)

Fusion serves an inexhaustible energy for humankind. Although there have been significant research and development studies on the inertial and magnetic fusion reactor technology, Furthermore, there are not radioactive nuclear waste problems in the fusion reactors. In this study, (n, p) reactions for some structural fusion materials such as 27Al, 51V, 52Cr, 55Mn and 56Fe have been investigated. The new calculations on the excitation functions of 27 Al(n,p) 27 Mg, 51 V(n,p) 51 Ti, 52 Cr(n,p) 52 V, 55 Mn(n,p) 55 Cr and 56 Fe(n,p) 56 Mn reactions have been carried out up to 30 MeV incident neutron energy. Statistical model calculations, based on the Hauser-Feshbach formalism, have been carried out using the TALYS-1.0 and were compared with available experimental data in the literature and with ENDF/B-VII, T=300k; JENDL-3.3, T=300k and JEFF3.1, T=300k evaluated libraries .

Tarik Siddik

2013-03-15T23:59:59.000Z

270

Calculation of excitation function of some structural fusion material for (n,p) reactions up to 25 MeV  

E-Print Network (OSTI)

Fusion serves an inexhaustible energy for humankind. Although there have been significant research and development studies on the inertial and magnetic fusion reactor technology, Furthermore, there are not radioactive nuclear waste problems in the fusion reactors. In this study, (n, p) reactions for some structural fusion materials such as 27Al, 51V, 52Cr, 55Mn and 56Fe have been investigated. The new calculations on the excitation functions of 27 Al(n,p) 27 Mg, 51 V(n,p) 51 Ti, 52 Cr(n,p) 52 V, 55 Mn(n,p) 55 Cr and 56 Fe(n,p) 56 Mn reactions have been carried out up to 30 MeV incident neutron energy. Statistical model calculations, based on the Hauser-Feshbach formalism, have been carried out using the TALYS-1.0 and were compared with available experimental data in the literature and with ENDF/B-VII, T=300k; JENDL-3.3, T=300k and JEFF3.1, T=300k evaluated libraries .

Siddik, Tarik

2013-01-01T23:59:59.000Z

271

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

272

Nuclear Weapons Journal Archive  

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

Nuclear Weapons Journal Archive Nuclear Weapons Journal The Nuclear Weapons Journal ceased publication after Issue 2, 2009. Below are Nuclear Weapons Journal archived issues. Issue...

273

Nonreactor Nuclear Facilities Division  

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

role in developing science and technology for nuclear power programs, nuclear propulsion, nuclear medicine, and the nation's nuclear weapon program among others. Many...

274

Nuclear hadrodynamics  

Science Conference Proceedings (OSTI)

The role of hadron dynamics in the nucleus is illustrated to show the importance of nuclear medium effects in hadron interactions. The low lying hadron spectrum is considered to provide the natural collective variable for nuclear systems. Recent studies of nucleon?nucleon and delta?nucleon interactions are reviewed

D. F. Geesaman

1984-01-01T23:59:59.000Z

275

PROBING DENSE NUCLEAR MATTER VIA NUCLEAR COLLISIONS  

E-Print Network (OSTI)

University of California. LBL-12095 Probing Dense NuclearMatter Nuclear Collisions* v~a H. Stocker, M.Gyulassy and J. Boguta Nuclear Science Division Lawrence

Stocker, H.

2012-01-01T23:59:59.000Z

276

Nuclear Materials Management & Safeguards System | National Nuclear...  

National Nuclear Security Administration (NNSA)

Management & Safeguards System Nuclear Materials Management & Safeguards System NMMSS U.S. Department of Energy U.S. Nuclear Regulatory Commission Nuclear Materials...

277

Nuclear Materials Management & Safeguards System | National Nuclear...  

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

Our Jobs Our Jobs Working at NNSA Blog Nuclear Materials Management & Safeguards System Home > About Us > Our Programs > Nuclear Security > Nuclear Materials Management &...

278

Nuclear Resonance Fluorescence for Nuclear Materials Assay  

E-Print Network (OSTI)

Energy Transmission say for Nuclear Fuel Assemblies 4.1Facilities Spent nuclear fuel is another example wherein intact spent nuclear fuel would be a technological

Quiter, Brian Joseph

2010-01-01T23:59:59.000Z

279

Nuclear Resonance Fluorescence for Nuclear Materials Assay  

E-Print Network (OSTI)

and Diablo Canyon 2 nuclear reactors. Data were taken fromCapacity Operation of nuclear reactors for power generationby the operation of nuclear reactors. Therefore, ap-

Quiter, Brian Joseph

2010-01-01T23:59:59.000Z

280

Nuclear Materials Management & Safeguards System | National Nuclear...  

National Nuclear Security Administration (NNSA)

System Nuclear Materials Management & Safeguards System NMMSS U.S. Department of Energy U.S. Nuclear Regulatory Commission Nuclear Materials Management & Safeguards System...

Note: This page contains sample records for the topic "mev g-1cm2 nuclear" 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

Nuclear Systems Modeling, Simulation & Validation | Nuclear Science...  

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

Research Areas Fuel Cycle Science & Technology Fusion Nuclear Science Isotope Development and Production Nuclear Security Science & Technology Nuclear Systems Modeling, Simulation...

282

Nuclear Resonance Fluorescence for Nuclear Materials Assay  

E-Print Network (OSTI)

that are of interest for nuclear security applications. Theof interest to nuclear security. To either make theseother targets of nuclear security interest, such kilogram-

Quiter, Brian Joseph

2010-01-01T23:59:59.000Z

283

Nuclear Halos  

Science Conference Proceedings (OSTI)

We show that extreme nuclear halos are caused only by pairs of s?wave neutrons (or single s?wave neutrons) and that such states occur much more frequently in the periodic table than previously believed. Besides lingering long near zero neutron separation energy such extreme halos have very remarkable properties: they can contribute significantly to the nuclear density at more than twice the normal nuclear radius and their spreading width can be very narrow. The properties of these states are primarily determined by the “thickness” of the nuclear surface in the mean?free nuclear potential and thus their importance increases greatly as we approach the neutron drip line. We discuss what such extreme halos are

Erich Vogt

2010-01-01T23:59:59.000Z

284

Charge correlations and isotopic distributions of projectile fragmentation events in {sup 124}Xe+{sup 112}Sn at E/A=50 MeV  

Science Conference Proceedings (OSTI)

Ternary breakup of an excited projectile-like fragment produced in mid-peripheral collisions of {sup 124}Xe projectiles with {sup 112}Sn nuclei at E/A=50 MeV is examined. Charge correlations reveal that symmetric breakups occur with significant probability. By selecting on the parallel velocity of the heaviest fragment we minimize the entrance channel dynamics. Calculations with the statistical decay code GEMINI failed to reproduce the experimental charge correlations for any suitable combination of excitation energy and spin considered. A statistical multifragmentation model (SMM) in which breakup of low-density nuclear matter is assumed was able to reproduce the observed charge correlations. The /Z and isotope distributions of fragments were compared to the results of the SMM calculations. Describing the /Z of heavy fragments (Z>6) within SMM suggests that a reduction of the symmetry energy parameter from {gamma}=25 to 14 MeV is necessary. We observe that the yield of neutron-rich isotopes of heavy fragments is particularly sensitive to the symmetry energy.

Hudan, S.; McIntosh, A. B.; Black, J.; Mercier, D.; Metelko, C. J.; Yanez, R.; Souza, R. T. de; Chbihi, A.; Famiano, M.; Fregeau, M. O.; Gauthier, J.; Moisan, J.; Roy, R.; Bianchin, S.; Schwarz, C.; Trautmann, W.; Botvina, A. S. [Department of Chemistry and Indiana University Cyclotron Facility, 2401 Milo B. Sampson Lane, Bloomington, Indiana 47405 (United States); GANIL, Caen (France); Western Michigan University, Kalamazoo, Michigan (United States); Universite Laval, Quebec (Canada); GSI Helmholtzzentrum GmbH, Planckstrasse 1, D-64291 Darmstadt (Germany); Institute for Nuclear Research, Russian Academy of Sciences, RU-117312 Moscow (Russian Federation)

2009-12-15T23:59:59.000Z

285

Spectroscopy of 24Al and extraction of Gamow-Teller strengths with the 24Mg(3He,t) reaction at 420 MeV  

E-Print Network (OSTI)

The 24Mg(3He,t)24Al reaction has been studied at E(3He)=420 MeV. An energy resolution of 35 keV was achieved. Gamow-Teller strengths to discrete levels in 24Al are extracted by using a recently developed empirical relationship for the proportionality between Gamow-Teller strengths and differential cross sections at zero momentum transfer. Except for small discrepancies for a few weak excitations, good agreement with previous 24Mg(p,n) data and nuclear-structure calculations using the USDA/B interactions in the sd shell-model space is found. The excitation energy of several levels in 24Al of significance for determination of the 23Mg(p,gamma)24Al thermonuclear reaction rate were measured. Results are consistent with two of the three previous (3He,t) measurements, performed at much lower beam energies. However, a new state at Ex(24Al)=2.605(10) MeV was found and is the third state above the proton separation energy.

R. G. T. Zegers; R. Meharchand; T. Adachi; Sam M. Austin; B. A. Brown; Y. Fujita; M. Fujiwara; C. J. Guess; H. Hashimoto; K. Hatanaka; M. E. Howard; H. Matsubara; K. Nakanishi; T. Ohta; H. Okamura; Y. Sakemi; Y. Shimbara; Y. Shimizu; C. Scholl; A. Signoracci; Y. Tameshige; A. Tamii; M. Yosoi

2008-03-27T23:59:59.000Z

286

THE POWER SUPPLY SYSTEM FOR THE ACCELERATING COLUMN OF THE 2 MEV ELECTRON COOLER FOR COSY  

E-Print Network (OSTI)

filter, and various power supplies for these elements. The cascade transformer is to provide a requiredTHE POWER SUPPLY SYSTEM FOR THE ACCELERATING COLUMN OF THE 2 MEV ELECTRON COOLER FOR COSY D a high-energy electron beam. The power supply for the accelerating column of the electron cooling system

Kozak, Victor R.

287

Characteristics of 15 MeV and fission neutron damage in niobium  

SciTech Connect

Displacement damage by 15 MeV (d-Be source) and fission neutrons at 30$sup 0$C in high purity niobium single crystals has been studied by transmission electron microscopy. The fluence of the 15 MeV neutrons was 1.5-- 2.0 x 10$sup 17$ n/cm$sup 2$ and the fluence of the fission neutrons (5 x 10$sup 17$ n/cm$sup 2$) was chosen so that samples from both types of irradiations had approximately the same damage energy. In both 15 MeV and fission neutron irradiated specimens, the loops were observed to be about $sup 2$/$sub 3$ interstitial and $sup 1$/$sub 3$ vacancy type. The analysis of Burgers vectors of the dislocation loops showed that more than $sup 2$/$sub 3$ of the loops were perfect a/2(111) and that the rest were a/2(110) faulted. It is concluded that at equal damage energies, the detailed nature of the damage is the same for 15 MeV and fission neutron irradiated niobium. (auth)

Narayan, J.; Ohr, S.M.

1976-02-01T23:59:59.000Z

288

ORELA measurements to meet fusion energy neutron cross section needs. [2 to 80 MeV  

DOE Green Energy (OSTI)

Major neutron cross section measurements made at the Oak Ridge Electron Linear Accelerator (ORELA) that are useful to the fusion energy program are reviewed. Cross sections for production of gamma rays with energies 0.3 < E/sub ..gamma../ < 10.5 MeV were measured as a function of neutron energy over the range 0.1 < E/sub n/ < 20.0 MeV for Li, C, N, O, F, Na, Mg, Al, Si, Ca, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, Nb, Mo, Ag, Sn, Ta, W, Au, Pb, and Th. Neutron emission cross sections have been measured for /sup 7/Li, Al, Ti, Cu, and Nb for 1 < E/sub n/ < 20 MeV. Some results of recent neutron total cross section measurements from 2 to 80 MeV for eleven materials (C, O, Al, Si, Ca, Cr, Fe, Ni, Cu, Au, and Pb) of interest to the FMIT project are presented. Finally, future directions of the ORELA program are outlined. 4 figures, 3 tables.

Larson, D.C.

1980-01-01T23:59:59.000Z

289

Evaluated nuclear-data file for niobium  

SciTech Connect

A comprehensive evaluated nuclear-data file for elemental niobium is provided in the ENDF/B format. This file, extending over the energy range 10/sup -11/-20 MeV, is suitable for comprehensive neutronic calculations, particulary those dealing with fusion-energy systems. It also provides dosimetry information. Attention is given to the internal consistancy of the file, energy balance, and the quantitative specification of uncertainties. Comparisons are made with experimental data and previous evaluated files. The results of integral tests are described and remaining outstanding problem areas are cited. 107 refs.

Smith, A.B.; Smith, D.L.; Howerton, R.J.

1985-03-01T23:59:59.000Z

290

High-energy behavior of the nuclear symmetry potential in asymmetric nuclear matter RID A-2398-2009  

E-Print Network (OSTI)

Using the relativistic impulse approximation with empirical NN scattering amplitude and the nuclear scalar and vector densities from the relativistic mean-field theory, we evaluate the Dirac optical potential for neutrons and protons in asymmetric nuclear matter. From the resulting Schrodinger-equivalent potential, the high-energy behavior of the nuclear symmetry potential is studied. We find that the symmetry potential at fixed baryon density is essentially constant once the nucleon kinetic energy is greater than about 500 MeV. Moreover, for such a high-energy nucleon, the symmetry potential is slightly negative below a baryon density of about rho = 0.22 fm(-3) and then increases almost linearly to positive values at high densities. Our results thus provide an important constraint on the energy and density dependence of nuclear symmetry potential in asymmetric nuclear matter.

Chen, LW; Ko, Che Ming; Li, Ba.

2005-01-01T23:59:59.000Z

291

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

292

Nuclear data for radiotherapy: Presentation of a new ICRU report and IAEA initiatives  

DOE Green Energy (OSTI)

An ICRU report entitled ''Nuclear Data for neutron and Proton Radiotherapy and for Radiation Protection'' is in preparation. The present paper presents an overview of this report, along with examples of some of the results obtained for evaluated nuclear cross sections and kerma coefficients. These cross sections are evaluated using a combination of measured data and the GNASH nuclear model code for elements of importance for biological, dosimetric, beam modification and shielding purposes. In the case of hydrogen both R-matrix and phase-shift scattering theories are used. In the report neutron cross sections and kerma coefficients will be presented up to 100 MeV and proton cross sections up to 250 MeV. An IAEA Consultants' Meeting was also convened to examine the ''Status of Nuclear Data needed for Radiation Therapy and Existing Data Development Activities in Member States''. Recommendations were made regarding future endeavors.

Chadwick, M.B. [Los Alamos National Lab., NM (US); Jones, D.T.L. [National Accelerator Centre, Faure (South Africa); Barschall, H.H. [Univ. of Wisconsin, Madison, WI (US)] [and others

1998-09-01T23:59:59.000Z

293

(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

294

Countering Nuclear Terrorism and Trafficking | National Nuclear...  

National Nuclear Security Administration (NNSA)

Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure...

295

Nuclear Forensics | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure...

296

Nuclear Incident Team | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure...

297

Nuclear / Radiological Advisory Team | National Nuclear Security...  

National Nuclear Security Administration (NNSA)

Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure...

298

Nuclear Safeguards | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure...

299

Nuclear Controls | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure...

300

Nuclear Nonproliferation Treaty | National Nuclear Security Administra...  

National Nuclear Security Administration (NNSA)

Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure...

Note: This page contains sample records for the topic "mev g-1cm2 nuclear" 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

Nuclear Verification | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Verification | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our...

302

Climate Change, Nuclear Power and Nuclear  

E-Print Network (OSTI)

Climate Change, Nuclear Power and Nuclear Proliferation: Magnitude Matters Rob Goldston MIT IAP biomass wind hydro coal CCS coal nat gas CCS nat gas nuclear Gen IV nuclear Gen III nuclear Gen II 5-1 Electricity Generation: CCS and Nuclear Power Technology Options Available Global Electricity Generation WRE

303

Nuclear Magnetic Resonance Laboratory  

Science Conference Proceedings (OSTI)

Nuclear Magnetic Resonance Laboratory. ... A 600 MHz Nuclear Magnetic Resonance Spectrometer. Analytical Data Compilation Reference Materials. ...

2012-10-01T23:59:59.000Z

304

Multifragmentation and nuclear phase transitions (liquid-fog and liquid-gas)  

E-Print Network (OSTI)

Thermal multifragmentation of hot nuclei is interpreted as the nuclear liquid-fog phase transition. The charge distributions of the intermediate mass fragments produced in p(3.6 GeV) + Au and p(8.1 GeV) + Au collisions are analyzed within the statistical multifragmentation model with the critical temperature for the nuclear liquid-gas phase transition Tc as a free parameter. The analysis presented here provides strong support for a value of Tc > 15 MeV.

V. A. Karnaukhov; H. Oeschler; S. P. Avdeyev; V. K. Rodionov; A. V. Simomenko; V. V. Kirakosyan; A. Budzanowski; W. Karcz; I. Skwirczynska; E. A. Kuzmin; E. Norbeck; A. S. Botvina

2003-10-10T23:59:59.000Z

305

Nuclear Chirality  

Science Conference Proceedings (OSTI)

Nuclear chirality is a novel manifestation of spontaneous symmetry breaking resulting from an orthogonal coupling of angular momentum vectors in triaxial nuclei. Three perpendicular angular momenta can form two systems of opposite handedness; the time reversal operator

Krzysztof Starosta

2005-01-01T23:59:59.000Z

306

Nuclear & Uranium  

U.S. Energy Information Administration (EIA)

Table 21. Foreign sales of uranium from U.S. suppliers and owners and operators of U.S. civilian nuclear power reactors by origin and delivery year, 2008-2012

307

Nuclear Materials  

Science Conference Proceedings (OSTI)

Assessing the Thermal Stability of Bulk Metallic Glasses for Nuclear Waste Applications by K. Hildal, J.H. Perepezko, and L. Kaufman, $10.00 ($10.00), $25.00.

308

NUCLEAR REACTOR  

DOE Patents (OSTI)

A nuclear reactor incorporating seed and blanket assemblies is designed. Means are provided for obtaining samples of the coolant from the blanket assemblies and for varying the flow of coolant through the blanket assemblies. (AEC)

Sherman, J.; Sharbaugh, J.E.; Fauth, W.L. Jr.; Palladino, N.J.; DeHuff, P.G.

1962-10-23T23:59:59.000Z

309

Nuclear Nonproliferation  

Science Conference Proceedings (OSTI)

With an explosion equivalent of about 20kT of TNT, the Trinity test was the first demonstration of a nuclear weapon. Conducted on July 16, 1945 in Alamogordo, NM this site is now a Registered National Historic Landmark. The concept and applicability of nuclear power was demonstrated on December 20, 1951 with the Experimental Breeder Reactor Number One (EBR-1) lit four light bulbs. This reactor is now a Registered National Historic Landmark, located near Arco, ID. From that moment forward it had been clearly demonstrated that nuclear energy has both peaceful and military applications and that the civilian and military fuel cycles can overlap. For the more than fifty years since the Atoms for Peace program, a key objective of nuclear policy has been to enable the wider peaceful use of nuclear energy while preventing the spread of nuclear weapons. Volumes have been written on the impact of these two actions on the world by advocates and critics; pundits and practioners; politicians and technologists. The nations of the world have woven together a delicate balance of treaties, agreements, frameworks and handshakes that are representative of the timeframe in which they were constructed and how they have evolved in time. Collectively these vehicles attempt to keep political will, nuclear materials and technology in check. This paper captures only the briefest abstract of the more significant aspects on the Nonproliferation Regime. Of particular relevance to this discussion is the special nonproliferation sensitivity associated with the uranium isotope separation and spent fuel reprocessing aspects of the nuclear fuel cycle.

Atkins-Duffin, C E

2008-12-10T23:59:59.000Z

310

International Cooperation on Safety of Nuclear Plants - Nuclear...  

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

Nuclear Safety Materials Disposition Decontamination & Decommissioning Nuclear Criticality Safety Nuclear Data Program Nuclear Waste Form Modeling Departments Engineering...

311

Current R&D Activities in Nuclear Criticality Safety - Nuclear...  

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

Nuclear Safety Materials Disposition Decontamination & Decommissioning Nuclear Criticality Safety Nuclear Data Program Nuclear Waste Form Modeling Departments Engineering...

312

NUCLEAR DATA AND MEASUREMENTS REPORTS 161-180 - Nuclear Data...  

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

Nuclear Safety Materials Disposition Decontamination & Decommissioning Nuclear Criticality Safety Nuclear Data Program Nuclear Waste Form Modeling Departments Engineering...

313

Analysis Tools for Nuclear Criticality Safety - Nuclear Engineering...  

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

Nuclear Safety Materials Disposition Decontamination & Decommissioning Nuclear Criticality Safety Nuclear Data Program Nuclear Waste Form Modeling Departments Engineering...

314

Phase structure in a chiral model of nuclear matter  

Science Conference Proceedings (OSTI)

The phase structure of symmetric nuclear matter in the extended Nambu-Jona-Lasinio (ENJL) model is studied by means of the effective potential in the one-loop approximation. It is found that chiral symmetry gets restored at high nuclear density and a typical first-order phase transition of the liquid-gas transition occurs at zero temperature, T=0, which weakens as T grows and eventually ends up with a second-order critical point at T=20 MeV. This phase transition scenario is confirmed by investigating the evolution of the effective potential versus the effective nucleon mass and the equation of state.

Phat, Tran Huu [Vietnam Atomic Energy Commission, 59 Ly Thuong Kiet, Hanoi (Viet Nam); Dong Do University, 8 Nguyen Cong Hoan, Hanoi (Viet Nam); Anh, Nguyen Tuan [Electric Power University, 235 Hoang Quoc Viet, Hanoi (Viet Nam); Tam, Dinh Thanh [University of Taybac, Sonla (Viet Nam); Vietnam Atomic Energy Commission, 59 Ly Thuong Kiet, Hanoi (Viet Nam)

2011-08-15T23:59:59.000Z

315

Countering Nuclear Terrorism | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Countering Nuclear Terrorism | National Nuclear Security Administration Countering Nuclear Terrorism | 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 The National Nuclear Security Administration Countering Nuclear Terrorism Home > Our Mission > Countering Nuclear Terrorism Countering Nuclear Terrorism NNSA provides expertise, practical tools, and technically informed policy

316

Organization - Nuclear Engineering Division (Argonne)  

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

Nuclear Safety Materials Disposition Decontamination & Decommissioning Nuclear Criticality Safety Nuclear Data Program Nuclear Waste Form Modeling Departments Engineering...

317

Achievements: Nuclear Engineering Division (Argonne)  

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

Nuclear Safety Materials Disposition Decontamination & Decommissioning Nuclear Criticality Safety Nuclear Data Program Nuclear Waste Form Modeling Departments Engineering...

318

Deuteron scattering on {sup 6}Li at an energy of 25 MeV  

SciTech Connect

At an energy of 25 MeV and in the angular range 7{sup o}-175{sup o} in the laboratory frame, angular distributions were measured for elastic deuteron scattering on {sup 6}Li nuclei and for the respective inelastic-scattering processes accompanied by the transitions to the ground state (1+) of the {sup 6}Li nucleus and to its excited state at E{sub x} = 2.186 MeV (J{sup {pi}} = 3{sup +}). The resulting data were analyzed on the basis of the optical model of the nucleus and the coupled-reaction-channel method with allowance for the mechanism of alpha-particle-cluster exchange. It is shown that only upon including, in the analysis, channel coupling and the exchange mechanism can the experimental cross sections for elastic and inelastic scattering be reproduced over the entire range of angles.

Burtebayev, N. [National Nuclear Center of the Republic of Kazakhstan, Institute of Nuclear Physics (Kazakhstan); Artemov, S. V. [Uzbek Academy of Sciences, Institute of Nuclear Physics (Uzbekistan); Duisebayev, B. A.; Kerimkulov, Zh. K. [National Nuclear Center of the Republic of Kazakhstan, Institute of Nuclear Physics (Kazakhstan); Kuranov, S. B. [Uzbek Academy of Sciences, Institute of Nuclear Physics (Uzbekistan); Sakuta, S. B., E-mail: sakuta@dni.polyn.kiae.s [Russian Research Center Kurchatov Institute (Russian Federation)

2010-05-15T23:59:59.000Z

319

Transverse Beam Emittance Measurements of a 16 MeV Linac at the Idaho Accelerator Center  

SciTech Connect

A beam emittance measurement of the 16 MeV S-band High Repetition Rate Linac (HRRL) was performed at Idaho State University's Idaho Accelerator Center (IAC). The HRRL linac structure was upgraded beyond the capabilities of a typical medical linac so it can achieve a repetition rate of 1 kHz. Measurements of the HRRL transverse beam emittance are underway that will be used to optimize the production of positrons using HRRL's intense electron beam on a tungsten converter. In this paper, we describe a beam imaging system using on an OTR screen and a digital CCD camera, a MATLAB tool to extract beamsize and emittance, detailed measurement procedures, and the measured transverse emittances for an arbitrary beam energy of 15 MeV.

S. Setiniyaz, T.A. Forest, K. Chouffani, Y. Kim, A. Freyberger

2012-07-01T23:59:59.000Z

320

Voltage holding study of 1 MeV accelerator for ITER neutral beam injector  

Science Conference Proceedings (OSTI)

Voltage holding test on MeV accelerator indicated that sustainable voltage was a half of that of ideal quasi-Rogowski electrode. It was suggested that the emission of the clumps is enhanced by a local electric field concentration, which leads to discharge initiation at lower voltage. To reduce the electric field concentration in the MeV accelerator, gaps between the grid supports were expanded and curvature radii at the support corners were increased. After the modifications, the accelerator succeeded in sustaining -1 MV in vacuum without beam acceleration. However, the beam energy was still limited at a level of 900 keV with a beam current density of 150 A/m{sup 2} (346 mA) where the 3 x 5 apertures were used. Measurement of the beam profile revealed that deflection of the H{sup -} ions was large and a part of the H{sup -} ions was intercepted at the acceleration grid. This causes high heat load on the grids and the breakdowns during beam acceleration. To suppress the direct interception, new grid system was designed with proper aperture displacement based on a 3D beam trajectory analysis. As the result, the beam deflection was compensated and the voltage holding during the beam acceleration was improved. Beam parameter of the MeV accelerator was increased to 980 keV, 185 A/m{sup 2} (427 mA), which is close to the requirement of ITER accelerator (1 MeV, 200 A/m{sup 2}).

Taniguchi, M.; Kashiwagi, M.; Umeda, N.; Dairaku, M.; Takemoto, J.; Tobari, H.; Tsuchida, K.; Yamanaka, H.; Watanabe, K.; Kojima, A.; Hanada, M.; Sakamoto, K.; Inoue, T. [Japan Atomic Energy Agency (JAEA), 801-1 Mukoyama, Naka, Ibaraki 311-0193 (Japan)

2012-02-15T23:59:59.000Z

Note: This page contains sample records for the topic "mev g-1cm2 nuclear" 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

Accurate fission data for nuclear safety  

E-Print Network (OSTI)

The Accurate fission data for nuclear safety (AlFONS) project aims at high precision measurements of fission yields, using the renewed IGISOL mass separator facility in combination with a new high current light ion cyclotron at the University of Jyvaskyla. The 30 MeV proton beam will be used to create fast and thermal neutron spectra for the study of neutron induced fission yields. Thanks to a series of mass separating elements, culminating with the JYFLTRAP Penning trap, it is possible to achieve a mass resolving power in the order of a few hundred thousands. In this paper we present the experimental setup and the design of a neutron converter target for IGISOL. The goal is to have a flexible design. For studies of exotic nuclei far from stability a high neutron flux (10^12 neutrons/s) at energies 1 - 30 MeV is desired while for reactor applications neutron spectra that resembles those of thermal and fast nuclear reactors are preferred. It is also desirable to be able to produce (semi-)monoenergetic neutrons for benchmarking and to study the energy dependence of fission yields. The scientific program is extensive and is planed to start in 2013 with a measurement of isomeric yield ratios of proton induced fission in uranium. This will be followed by studies of independent yields of thermal and fast neutron induced fission of various actinides.

A. Solders; D. Gorelov; A. Jokinen; V. S. Kolhinen; M. Lantz; A. Mattera; H. Penttila; S. Pomp; V. Rakopoulos; S. Rinta-Antila

2013-03-12T23:59:59.000Z

322

Alpha-Particle Condensation in Nuclear Systems  

E-Print Network (OSTI)

The onset of quartetting, i.e. alpha-particle condensation, in symmetric nuclear matter is studied with the help of an in-medium modified four nucleon equation. It is found that at very low density quartetting wins over pairing, because of the strong binding of the alpha-particles. The critical temperature can reach values up to around 6 MeV. Also the disappearance of alpha-particles with increasing density, i.e. the Mott transition, is investigated. In finite nuclei the Hoyle state, that is the 0_2^+ of 12C, is identified as an "alpha-particle condensate" state. It is conjectured that such states also exist in heavier n alpha-nuclei, like 16O, 20Ne, etc. For instance the 6-th 0^+ state of 16O at 15.1 MeV is identified from a theoretical analysis as being a strong candidate for an alpha condensate state. Exploratory calculations are performed for the density dependence of the alpha condensate fraction at zero temperature to address the suppression of the four-particle condensate below nuclear-matter density. Possible quartet condensation in other systems is discussed briefly

Y. Funaki; T. Yamada; H. Horiuchi; G. Röpke; P. Schuck; A. Tohsaki

2008-09-03T23:59:59.000Z

323

Low cost/low intensity 50 MeV proton irradiation facility  

SciTech Connect

Protons have been proposed as one of the most useful particles for radiation therapy, but have found limited use due to the cost and scarcity of medium energy proton accelerators. However, the highly successful program on the Harvard Cyclotron has increased interest in expanding the number of treatment facilities. In order to demonstrate that high intensity proton accelerators are not required and to gain experience with treating patients using protons, a low cost and low intensity source of 50 MeV protons was developed at Argonne. Although the beam penetration is limited to 22 mm, the beam is capable of treating a major fraction of the ocular melanoma tumors treated at the Harvard Cyclotron. This beam operates parasitically with the Rapid Cycling Synchrotron at Argonne using a source of 50 MeV H/sup 0/ atoms which are produced by stripping in the gas of the 50 MeV H/sup -/ linear accelerator. A stripping fraction of about 3 to 5 x 10/sup -5/ is observed and yields a 0.4 namp beam of protons. Results on the properties and operation of this parasitic beam are presented. 5 refs., 3 figs.

Kramer, S.L.; Martin, R.L.

1985-01-01T23:59:59.000Z

324

Pion-Proton Elastic Scattering inthe energy Range 300 to 700MeV  

DOE Green Energy (OSTI)

Differential cross sections for elastic {pi}-p scattering have been measured at eight energies for positive pions and seven energies for negative pions. Energies ranged from 310 to 650 MeV. These measurements were made at the 3-BeV proton synchrotron at Saclay, France. A beam of pions from an internal BeO target was directed into a liquid hydrogen target. Fifty-one scintillation counters and a matrix-coincidence system were used to measure simultaneously elastic events at 21 angles and charged inelastic events at 78 {pi}-p angle pairs. Events were detected by a coincidence of pulses indicating the presence of an incident pion, scattered pion, and recoil proton and the results were stored in the memory of a pulse-height analyzer. Various corrections were applied to the data and a least-squares fit was made to the results at each energy. The form of the fitting function was a power series in the cosine of the center-of-mass angle of the scattered pion. Integration under the fitted curves gave values for the total elastic cross section. The importance of certain angular-momentum states, particularly the D{sub 13} state near 600 MeV, is discussed. Several possible explanations are given of the enhancement in the {pi}{sup -}-p cross sections near 600 MeV.

Ogden, Philip M.

1964-02-20T23:59:59.000Z

325

Nuclear scales  

Science Conference Proceedings (OSTI)

Nuclear scales are discussed from the nuclear physics viewpoint. The conventional nuclear potential is characterized as a black box that interpolates nucleon-nucleon (NN) data, while being constrained by the best possible theoretical input. The latter consists of the longer-range parts of the NN force (e.g., OPEP, TPEP, the {pi}-{gamma} force), which can be calculated using chiral perturbation theory and gauged using modern phase-shift analyses. The shorter-range parts of the force are effectively parameterized by moments of the interaction that are independent of the details of the force model, in analogy to chiral perturbation theory. Results of GFMC calculations in light nuclei are interpreted in terms of fundamental scales, which are in good agreement with expectations from chiral effective field theories. Problems with spin-orbit-type observables are noted.

Friar, J.L.

1998-12-01T23:59:59.000Z

326

Nuclear Power  

E-Print Network (OSTI)

The world of the twenty first century is an energy consuming society. Due to increasing population and living standards, each year the world requires more energy and new efficient systems for delivering it. Furthermore, the new systems must be inherently safe and environmentally benign. These realities of today's world are among the reasons that lead to serious interest in deploying nuclear power as a sustainable energy source. Today's nuclear reactors are safe and highly efficient energy systems that offer electricity and a multitude of co-generation energy products ranging from potable water to heat for industrial applications. The goal of the book is to show the current state-of-the-art in the covered technical areas as well as to demonstrate how general engineering principles and methods can be applied to nuclear power systems.

Tsvetkov, Pavel

2010-08-01T23:59:59.000Z

327

Nuclear Reactions  

E-Print Network (OSTI)

Nuclear reactions generate energy in nuclear reactors, in stars, and are responsible for the existence of all elements heavier than hydrogen in the universe. Nuclear reactions denote reactions between nuclei, and between nuclei and other fundamental particles, such as electrons and photons. A short description of the conservation laws and the definition of basic physical quantities is presented, followed by a more detailed account of specific cases: (a) formation and decay of compound nuclei; (b)direct reactions; (c) photon and electron scattering; (d) heavy ion collisions; (e) formation of a quark-gluon plasma; (f) thermonuclear reactions; (g) and reactions with radioactive beams. Whenever necessary, basic equations are introduced to help understand general properties of these reactions. Published in Wiley Encyclopedia of Physics, ISBN-13: 978-3-527-40691-3 - Wiley-VCH, Berlin, 2009.

C. A. Bertulani

2009-08-22T23:59:59.000Z

328

Nuclear Lattice Simulations with Chiral Effective Field Theory  

E-Print Network (OSTI)

We study nuclear and neutron matter by combining chiral effective field theory with non-perturbative lattice methods. In our approach nucleons and pions are treated as point particles on a lattice. This allows us to probe larger volumes, lower temperatures, and greater nuclear densities than in lattice QCD. The low energy interactions of these particles are governed by chiral effective theory and operator coefficients are determined by fitting to zero temperature few-body scattering data. Any dependence on the lattice spacing can be understood from the renormalization group and absorbed by renormalizing operator coefficients. In this way we have a realistic simulation of many-body nuclear phenomena with no free parameters, a systematic expansion, and a clear theoretical connection to QCD. We present results for hot neutron matter at temperatures 20 to 40 MeV and densities below twice nuclear matter density.

Dean Lee; Bugra Borasoy; Thomas Schaefer

2004-02-23T23:59:59.000Z

329

Nuclear Models  

SciTech Connect

The atomic nucleus is a typical example of a many-body problem. On the one hand, the number of nucleons (protons and neutrons) that constitute the nucleus is too large to allow for exact calculations. On the other hand, the number of constituent particles is too small for the individual nuclear excitation states to be explained by statistical methods. Another problem, particular for the atomic nucleus, is that the nucleon-nucleon (n-n) interaction is not one of the fundamental forces of Nature, and is hard to put in a single closed equation. The nucleon-nucleon interaction also behaves differently between two free nucleons (bare interaction) and between two nucleons in the nuclear medium (dressed interaction).Because of the above reasons, specific nuclear many-body models have been devised of which each one sheds light on some selected aspects of nuclear structure. Only combining the viewpoints of different models, a global insight of the atomic nucleus can be gained. In this chapter, we revise the the Nuclear Shell Model as an example of the microscopic approach, and the Collective Model as an example of the geometric approach. Finally, we study the statistical properties of nuclear spectra, basing on symmetry principles, to find out whether there is quantum chaos in the atomic nucleus. All three major approaches have been rewarded with the Nobel Prize of Physics. In the text, we will stress how each approach introduces its own series of approximations to reduce the prohibitingly large number of degrees of freedom of the full many-body problem to a smaller manageable number of effective degrees of freedom.

Fossion, Ruben [Instituto de Ciencias Nucleares, Universidad Nacional Autonoma de Mexico, Apartado Postal 70-543, Mexico D. F., C.P. 04510 (Mexico)

2010-09-10T23:59:59.000Z

330

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,

331

Nuclear Data Program - Nuclear Engineering Division (Argonne)  

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

Data Program Data Program 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 We contribute to the development of comprehensive nuclear reactions and nuclear structure databases, including nuclear data measurement, analysis, modeling and evaluation methodologies, that are implemented in basic science research and advanced nuclear technologies. Bookmark and Share Recent Events Nuclear Structure 2012 Conference Argonne National Laboratory hosted the

332

Powering the Nuclear Navy | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

The National Nuclear Security Administration Powering the Nuclear Navy Home > Our Mission > Powering the Nuclear Navy Powering the Nuclear Navy The Naval Nuclear Propulsion Program...

333

National Nuclear Data Center Nuclear Energy  

E-Print Network (OSTI)

National Nuclear Data Center and Nuclear Energy Pavel Oblozinsky National Nuclear Data Center;National Nuclear Data Center Probably the oldest active organization at BNL History · Founded in 1952 as Sigma Center, neutron cross sections · Changed to National Nuclear Data Center in 1977 · 40 staff

334

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.

335

Midwest Nuclear Compact (Iowa)  

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

The Midwest Nuclear Compact establishes a Midwest Nuclear Board to cooperatively evaluate and make recommendations regarding the development of nuclear technology, distribute information about...

336

Nuclear | Department of Energy  

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

Nuclear Nuclear Radioisotope Power Systems, a strong partnership between the Energy Department's Office of Nuclear Energy and NASA, has been providing the energy for deep space...

337

Brookhaven Nuclear Physics  

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

Brookhaven Nuclear Physics Historically, nuclear physicists have studied the structure, characteristics, and behavior of the atomic nucleus and the nature of the nuclear force....

338

NUCLEAR PROXIMITY FORCES  

E-Print Network (OSTI)

One might summarize of nuclear potential energy has beendegree of freedom) for the nuclear interaction between anyUniversity of California. Nuclear Proximity Forces 'I< at

Randrup, J.

2011-01-01T23:59:59.000Z

339

Nuclear | Department of Energy  

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

Science & Innovation Energy Sources Nuclear Nuclear Radioisotope Power Systems, a strong partnership between the Energy Department's Office of Nuclear Energy and NASA, has...

340

AN ANALYSIS OF THE REACTION B$sup 10$(d,p)$sup 11$*(2.14 Mev). Thesis  

SciTech Connect

A theoretical investigation of the angular distribution of protons from the reaction B/sup 10/(d,p/sub 1/)B/sup 11*/ was made. An analysis of the available experimental data indicated that the angular momentum selection rule of the Butler theory of deuteron stripping is violated in this reaction. Thus, the Butler theory cannot account for the behavior of the observed angular distributions nor can the final state interaction of the captured neutron and outgoing proton, used in the Butler theory, be the mechanism by which the reaction proceeds. The direct nuclear reaction theory was used as a framework for studying the other possible reaction mechanisms. The other mechanisms give rise to three different types of scattering amplitudes: the knock out amplitude, the heavy particle stripping amplitude, and the proton target amplitude. The first two amplitudes arise from exchange effects due to inclusion of the Pauli principle. Angular distributions are calculated for each case using the approximations of plane waves for the relative motion in the initial and final states and j-j coupling for the nuclear states. Single particle states are represented by harmonic oscillator wave functions. A calculation of the proton target angular distribution was made using a real deuteron and Bhatia approximations. Agreement with the experimental data at 8.1 Mev was not obtained. The ratio of the maxima occurring in the proton target and heavy particle stripping cross sections was found to be about 100. Distortion effects are then included in the calculation using an approximate method developed by Rodberg. Use of distortion greatly improves the fit to the data. It was concluded that the reaction mechanism is the proton target interaction; distortion effects are important in the reaction; and the structure in the observed angular distribution near 90 deg is an effect of the finite deuteron size. Several appendices are included in which the scattering amplitude is derived and then antisymmetrized. It is shown thai both the initial and the final states must be antisymmetrized to obtain the proper normalization of the transition operator. (TCO)

Levin, F.S.

1961-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "mev g-1cm2 nuclear" 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

Nuclear explosions  

Science Conference Proceedings (OSTI)

A summary of the physics of a nuclear bomb explosion and its effects on human beings is presented at the level of a sophomore general physics course without calculus. It is designed to supplement a standard text for such a course and problems are included.

A. A. Broyles

1982-01-01T23:59:59.000Z

342

Nuclear ferromagnetism  

Science Conference Proceedings (OSTI)

The possibility of producing ordered states of nuclear spins by DNP followed by ADRF was first demonstrated in 1969. The spins of 19F in a crystal of CaF2 were cooled below one microdegree (with the applied field along the [100] axis) and their antiferromagnetic ordering was exhibited through the characteristic behaviour of their transverse and (later) longitudinal susceptibilities.

A. Abragam

1975-01-01T23:59:59.000Z

343

NUCLEAR REACTOR  

DOE Patents (OSTI)

A boiling-water nuclear reactor is described wherein control is effected by varying the moderator-to-fuel ratio in the reactor core. This is accomplished by providing control tubes containing a liquid control moderator in the reactor core and providing means for varying the amount of control moderatcr within the control tubes.

Treshow, M.

1961-09-01T23:59:59.000Z

344

Nuclear Terrorism.  

SciTech Connect

As pointed out by several speakers, the level of violence and destruction in terrorist attacks has increased significantly during the past decade. Fortunately, few have involved weapons of mass destruction, and none have achieved mass casualties. The Aum Shinrikyo release of lethal nerve agent, sarin, in the Tokyo subway on March 20, 1995 clearly broke new ground by crossing the threshold in attempting mass casualties with chemical weapons. However, of all weapons of mass destruction, nuclear weapons still represent the most frightening threat to humankind. Nuclear weapons possess an enormous destructive force. The immediacy and scale of destruction are unmatched. In addition to destruction, terrorism also aims to create fear among the public and governments. Here also, nuclear weapons are unmatched. The public's fear of nuclear weapons or, for that matter, of all radioactivity is intense. To some extent, this fear arises from a sense of unlimited vulnerability. That is, radioactivity is seen as unbounded in three dimensions - distance, it is viewed as having unlimited reach; quantity, it is viewed as having deadly consequences in the smallest doses (the public is often told - incorrectly, of course - that one atom of plutonium will kill); and time, if it does not kill you immediately, then it will cause cancer decades hence.

Hecker, Siegfried S.

2001-01-01T23:59:59.000Z

345

NUCLEAR REACTOR  

DOE Patents (OSTI)

A nuclear reactor is described that includes spaced vertical fuel elements centrally disposed in a pressure vessel, a mass of graphite particles in the pressure vessel, means for fluidizing the graphite particles, and coolant tubes in the pressure vessel laterally spaced from the fuel elements. (AEC)

Post, R.G.

1963-05-01T23:59:59.000Z

346

NUCLEAR REACTOR  

DOE Patents (OSTI)

This patent relates to a combination useful in a nuclear reactor and is comprised of a casing, a mass of graphite irapregnated with U compounds in the casing, and at least one coolant tube extending through the casing. The coolant tube is spaced from the mass, and He is irtroduced irto the space between the mass and the coolant tube. (AEC)

Starr, C.

1963-01-01T23:59:59.000Z

347

Neutrino nuclear response and photo nuclear reaction  

E-Print Network (OSTI)

Photo nuclear reactions are shown to be used for studying neutrino/weak nuclear responses involved in astro-neutrino nuclear interactions and double beta decays. Charged current weak responses for ground and excited states are studied by using photo nuclear reactions through isobaric analog states of those states, while neutral current weak responses for excited states are studied by using photo nuclear reactions through the excited states. The weak interaction strengths are studied by measuring the cross sections of the photo nuclear reactions, and the spin and parity of the state are studied by measuring angular correlations of particles emitted from the photo nuclear reactions. Medium-energy polarized photons obtained from laser photons scattered off GeV electrons are very useful. Nuclear responses studied by photo nuclear reactions are used to evaluate neutrino/weak nuclear responses, i.e. nuclear beta and double beta matrix elements and neutrino nuclear interactions, and to verify theoretical calculation...

Ejiri, H; Boswell, M; Young, A

2013-01-01T23:59:59.000Z

348

Neutrino nuclear response and photo nuclear reaction  

E-Print Network (OSTI)

Photo nuclear reactions are shown to be used for studying neutrino/weak nuclear responses involved in astro-neutrino nuclear interactions and double beta decays. Charged current weak responses for ground and excited states are studied by using photo nuclear reactions through isobaric analog states of those states, while neutral current weak responses for excited states are studied by using photo nuclear reactions through the excited states. The weak interaction strengths are studied by measuring the cross sections of the photo nuclear reactions, and the spin and parity of the state are studied by measuring angular correlations of particles emitted from the photo nuclear reactions. Medium-energy polarized photons obtained from laser photons scattered off GeV electrons are very useful. Nuclear responses studied by photo nuclear reactions are used to evaluate neutrino/weak nuclear responses, i.e. nuclear beta and double beta matrix elements and neutrino nuclear interactions, and to verify theoretical calculations for them.

H. Ejiri; A. I. Titov; M. Boswell; A. Young

2013-11-10T23:59:59.000Z

349

Nuclear Forensics | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Forensics | National Nuclear Security Administration Forensics | 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 Nuclear Forensics Home > About Us > Our Programs > Emergency Response > Responding to Emergencies > Nuclear Forensics Nuclear Forensics Forensics Operations The National Technical Nuclear Forensics (NTNF) program is a Homeland Security Council and National Security

350

Nuclear Detonation Detection | National Nuclear Security Administratio...  

National Nuclear Security Administration (NNSA)

Research and Development > Nuclear Detonation Detection Nuclear Detonation Detection NNSA builds the nation's operational sensors that monitor the entire planet from space to...

351

Why Nuclear Energy?  

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

nuclear Why nuclear energy? energy? Nuclear energy already meets a significant share of the Nuclear energy already meets a significant share of the world world' 's energy needs s...

352

Civilian Nuclear Programs  

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

Civilian Nuclear Programs Civilian Nuclear Programs Civilian Nuclear Programs Los Alamos is committed to using its advanced nuclear expertise and unique facilities to meet the civilian nuclear national security demands of the future. CONTACT US Program Director Bruce Robinson (505) 667-1910 Email Los Alamos partners extensively with other laboratories, universities, industry, and the international nuclear community to address real-world technical challenges The Civilian Nuclear Programs Office is the focal point for nuclear energy research and development and next-generation repository science at Los Alamos National Laboratory. The Civilian Nuclear Programs Office manages projects funded by the Department of Energy's offices of Nuclear Energy Environmental Management Nuclear Regulatory Commission

353

ANS Nuclear Historic Landmark  

Science Conference Proceedings (OSTI)

... NCNR declared a Nuclear Historic Landmark by the American Nuclear Society. The NIST Center for Neutron Research ...

354

WORKSHOP ON NUCLEAR DYNAMICS  

E-Print Network (OSTI)

L. Wilets, "Theories of Nuclear Fission", Clarendon Press,of the nuclear force, result in lower calculated fission

Myers, W.D.

2010-01-01T23:59:59.000Z

355

National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure...

356

Nuclear Analytical Methods  

Science Conference Proceedings (OSTI)

... Nuclear Analytical Methods. Research activities in the Nuclear Analytical Methods Group are focused on the science that ...

357

(n,2n) and (n,3n) cross sections of neutron-induced reactions on 150Sm for En from threshold to 35 MeV  

SciTech Connect

Cross-section measurements were made of prompt discrete {gamma}-ray production as a function of incident neutron energy (E{sub n} = 1 to 35 MeV) on a {sup 150}Sm sample fo 1550 mg/cm{sup 2} of Sm{sub 2}O{sub 3} enriched to 95.6% in {sup 150}Sm. Results are compared with enhanced Hauser-Feshbach model calculations including the pre-equilibrium reactions. Energetic neutrons were delivered by the Los Alamos Neutron Science Center facility. The prompt-reaction {gamma} rays were detected with the Compton-suppressed Germanium Array for Neutron Induced Excitations (GEANIE). Incident neutron energies were determined by the time-of-flight technique. Excitation functions for thirteen individual {gamma}-rays up to E{sub x} = 0.8 MeV in {sup 149}Sm and one {gamma}-ray transition between the first excited and ground state in {sup 148}Sm were measured. Partial {gamma}-ray cross sections were calculated using GNASH, an enhanced Hauser-Feshbach statistical nuclear reaction model code, and compared with the experimental results. The particle transmission coefficients were calculated with new systematic 'global' optical model potential parameters. The coupled-channel optical model based on the soft rotor model was employed to calculate the particle transmission coefficients. The pre-equilibrium part of the spin distribution in {sup 150}Sm was calculated using the quantum mechanical theory of Feshbach, Kerman, and Koonin (FKK) and incorporated into the GNASH reaction model code. the partial cross sections for discrete {gamma}-ray cascade paths leading to the ground state in {sup 149}Sm and {sup 148}Sm have been summed (without double counting) to estimate lower limits for reaction cross sections. These lower limits are combined with Hauser-Feshbach model calculations to deduce the reaction channel cross sections. These reaction channel cross sections agree with previously measured experimental and ENDF/B-VII evaluations.

Dashdorj, D; Mitchell, G; Kawano, T; Becker, J; Wu, C; Devlin, M; Fotiades, N; Nelson, R; Kunieda, S

2009-03-16T23:59:59.000Z

358

Nuclear symmetry energy from the Fermi-energy difference in nuclei  

E-Print Network (OSTI)

The neutron-proton Fermi-energy difference and the correlation to nucleon separation energies for some magic nuclei are investigated with the Skyrme energy density functionals and nuclear masses, with which the nuclear symmetry energy at sub-saturation densities is constrained from 54 Skyrme parameter sets. The extracted nuclear symmetry energy at sub-saturation density of 0.11 fm$^{-3}$ is 26.2 $\\pm$ 1.0 MeV with 1.5 $\\sigma$ uncertainty. By further combining the neutron-skin thickness of 208Pb, ten Skyrme forces with slope parameter of 28energy around saturation densities.

Wang, Ning; Liu, Min

2013-01-01T23:59:59.000Z

359

Nuclear symmetry energy from the Fermi-energy difference in nuclei  

E-Print Network (OSTI)

The neutron-proton Fermi-energy difference and the correlation to nucleon separation energies for some magic nuclei are investigated with the Skyrme energy density functionals and nuclear masses, with which the nuclear symmetry energy at sub-saturation densities is constrained from 54 Skyrme parameter sets. The extracted nuclear symmetry energy at sub-saturation density of 0.11 fm$^{-3}$ is 26.2 $\\pm$ 1.0 MeV with 1.5 $\\sigma$ uncertainty. By further combining the neutron-skin thickness of 208Pb, ten Skyrme forces with slope parameter of 28energy around saturation densities.

Ning Wang; Li Ou; Min Liu

2013-03-15T23:59:59.000Z

360

Nuclear rockets  

SciTech Connect

A systems analysis is made of a class of nuclear-propelled rockets in combination with chemical boosters. Various missions are considered including the delivery of 5000-lb payload 5500 nautical miles, the placement of a satellite in an orbit about the earth and the delivery of a payload to escape velocity. The reactors considered are of the heterogeneous type utilizing graphite fuel elements in a matrix of Be or hydrogenous moderator. Liquid hydrogen and ammonia are considered as propellants. Graphical results are presented which show the characteristics and performance of the nuclear rockets as the design parameters are varied. It should be emphasized that this report is not in any sense intended as a handbook of rocket parameters; it is intended only as a guide for determining areas of interest.

York, H.F.; Biehl, A.T.

1955-04-26T23:59:59.000Z

Note: This page contains sample records for the topic "mev g-1cm2 nuclear" 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 REACTOR  

DOE Patents (OSTI)

High temperature reactors which are uniquely adapted to serve as the heat source for nuclear pcwered rockets are described. The reactor is comprised essentially of an outer tubular heat resistant casing which provides the main coolant passageway to and away from the reactor core within the casing and in which the working fluid is preferably hydrogen or helium gas which is permitted to vaporize from a liquid storage tank. The reactor core has a generally spherical shape formed entirely of an active material comprised of fissile material and a moderator material which serves as a diluent. The active material is fabricated as a gas permeable porous material and is interlaced in a random manner with very small inter-connecting bores or capillary tubes through which the coolant gas may flow. The entire reactor is divided into successive sections along the direction of the temperature gradient or coolant flow, each section utilizing materials of construction which are most advantageous from a nuclear standpoint and which at the same time can withstand the operating temperature of that particular zone. This design results in a nuclear reactor characterized simultaneously by a minimum critiral size and mass and by the ability to heat a working fluid to an extremely high temperature.

Grebe, J.J.

1959-07-14T23:59:59.000Z

362

Light-ion production in the interaction of 96 MeV neutrons with silicon  

E-Print Network (OSTI)

Double-differential cross sections for light-ion (p, d, t, He-3 and alpha) production in silicon, induced by 96 MeV neutrons are reported. Energy spectra are measured at eight laboratory angles, ranging from 20 degrees to 160 degrees in steps of 20 degrees. Procedures for data taking and data reduction are presented. Deduced energy-differential, angle-differential and production cross sections are reported. Experimental cross sections are compared to theoretical reaction model calculations and experimental data in the literature.

U. Tippawan; S. Pomp; A. Atac; B. Bergenwall; J. Blomgren; S. Dangtip; A. Hildebrand; C. Johansson; J. Klug; P. Mermod; L. Nilsson; M. Osterlund; N. Olsson; K. Elmgren; O. Jonsson; A. V. Prokofiev; P. -U. Renberg; P. Nadel-Turonski; V. Corcalciuc; Y. Watanabe; A. Koning

2004-01-16T23:59:59.000Z

363

14 MeV neutron work at the Lawrence Livermore National Laboratory  

SciTech Connect

The 14 MeV neutron work at Lawrence Livermore National Laboratory (LLNL) covers two main areas of interest to this Symposium: (1) measurements and calculations of differential cross sections; and (2) integral measurements of the neutron and gamma emission spectra. In both areas a large number of materials have been studied, spanning a wide mass range (6 < A < 239), of interest to fusion and hybrid reactors. In this presentation a brief description of the experimental techniques and calculational analysis is given for each of the above areas and the measured and calculated cross sections are discussed. 28 refs., 7 figs., 3 tabs.

Hansen, L.F.

1985-07-01T23:59:59.000Z

364

Spin observables in 71A MeV 6,8He-hydrogen scattering  

E-Print Network (OSTI)

Predictions of cross sections and analyzing powers using g-folding optical potentials for the scattering of 71A MeV 6,8He ions from (polarized) hydrogen are compared with data. A g-folding model in which exchange amplitudes are evaluated explicitly was used with wave functions of 6,8He specified from a no-core shell model that used a complete (0+2+4)hw basis. The analyzing powers reveal some sensitivities to the details of the wave functions, especially in the case of halo nuclei.

S. Karataglidis; K. Amos

2013-05-07T23:59:59.000Z

365

Measurements of the HEU and LEU in-core spectra at the Ford Nuclear Reactor  

SciTech Connect

The Ford Nuclear Reactor (FNR) at the University of Michigan has been serving as the test site for a low-enriched uranium (LEU) fuel whole-core demonstration. As part of the experimental program, the differential neutron spectrum has been measured in a high-enriched uranium (HEU) core and an LEU core. The HEU and LEU spectra were determined by unfolding the measured activities of foils that were irradiated in the reactor. When the HEU and LEU spectra are compared from 1 MeV to 10 MeV, significant differences between the two spectra are apparent below 10 eV. These are probably caused by the additional /sup 238/U resonance absorption in the LEU fuel. No measurable difference occurs in the shape of the spectra above 1 MeV. 7 refs., 6 figs., 2 tabs.

Wehe, D.K.; King, J.S.; Lee, J.C.; Martin, W.R.

1984-01-01T23:59:59.000Z

366

Nuclear spin response studies in inelastic polarized proton scattering  

SciTech Connect

Spin-flip probabilities S/sub nn/ have been measured for inelastic proton scattering at incident proton energies around 300 MeV from a number of nuclei. At low excitation energies S/sub nn/ is below the free value. For excitation energies above about 30 MeV for momentum transfers between about 0.35 fm/sup /minus/1/ and 0.65 fm/sup / minus/1/ S/sub nn/ exceeds free values significantly. These results suggest that the relative ..delta..S = 1(..delta..S = 0 + ..delta..S = 1) nuclear spin response approaches about 90% in the region of the enhancement. Comparison of the data with slab response calculations are presented. Decomposition of the measured cross sections into sigma(..delta..S = 0) and sigma(..delta..S = 1) permit extraction of nonspin-flip and spin-flip dipole and quadrupole strengths. 29 refs., 11 figs.

Jones, K.W.

1988-01-01T23:59:59.000Z

367

Nuclear Hydrogen Initiative  

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

Advanced Nuclear Research Advanced Nuclear Research Office of Nuclear Energy, Science and Technology FY 2003 Programmatic Overview Nuclear Hydrogen Initiative Nuclear Hydrogen Initiative Office of Nuclear Energy, Science and Technology Henderson/2003 Hydrogen Initiative.ppt 2 Nuclear Hydrogen Initiative Nuclear Hydrogen Initiative Program Goal * Demonstrate the economic commercial-scale production of hydrogen using nuclear energy by 2015 Need for Nuclear Hydrogen * Hydrogen offers significant promise for reduced environmental impact of energy use, specifically in the transportation sector * The use of domestic energy sources to produce hydrogen reduces U.S. dependence on foreign oil and enhances national security * Existing hydrogen production methods are either inefficient or produce

368

Nuclear Nonproliferation Program Offices | National Nuclear Security  

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

Nonproliferation Program Offices | National Nuclear Security Nonproliferation Program Offices | 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 Nuclear Nonproliferation Program Offices Home > About Us > Our Programs > Nonproliferation > Nuclear Nonproliferation Program Offices Nuclear Nonproliferation Program Offices One of the gravest threats the United States and the international

369

Nuclear Nonproliferation Program Offices | National Nuclear Security  

National Nuclear Security Administration (NNSA)

Nonproliferation Program Offices | National Nuclear Security Nonproliferation Program Offices | 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 Nuclear Nonproliferation Program Offices Home > About Us > Our Programs > Nonproliferation > Nuclear Nonproliferation Program Offices Nuclear Nonproliferation Program Offices One of the gravest threats the United States and the international

370

Nuclear Systems Technology | Nuclear Science | ORNL  

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

Advanced Fuel Cycle Systems Criticality Safety Irradiation Experiment Development and Execution Robotics & Remote Systems Engineering and Applications Thermal & Hydraulic Experiments & Analysis Used Nuclear Fuel Storage, Transportation, and Disposal Reactor Technology Nuclear Science Home | Science & Discovery | Nuclear Science | Research Areas | Nuclear Systems Technology SHARE Nuclear Systems Technology Nuclear Systems Technology Image 2 ORNL has had historic involvement in a broad set of nuclear research areas: irradiated materials and isotopes R&D, fission and fusion reactors development, neutron scattering, fuel enrichment, used fuel recycling and disposal, etc. The skills and knowledge required to succeed in these research areas often cultivated core areas of expertise in which ORNL is

371

Nuclear / Radiological Advisory Team | National Nuclear Security  

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

/ Radiological Advisory Team | National Nuclear Security / Radiological Advisory Team | 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 Nuclear / Radiological Advisory Team Home > About Us > Our Programs > Emergency Response > Responding to Emergencies > Operations > Nuclear / Radiological Advisory Team Nuclear / Radiological Advisory Team

372

Status of the 1 MeV Accelerator Design for ITER NBI  

SciTech Connect

The beam source of neutral beam heating/current drive system for ITER is needed to accelerate the negative ion beam of 40A with D{sup -} at 1 MeV for 3600 sec. In order to realize the beam source, design and R and D works are being developed in many institutions under the coordination of ITER organization. The development of the key issues of the ion source including source plasma uniformity, suppression of co-extracted electron in D beam operation and also after the long beam duration time of over a few 100 sec, is progressed mainly in IPP with the facilities of BATMAN, MANITU and RADI. In the near future, ELISE, that will be tested the half size of the ITER ion source, will start the operation in 2011, and then SPIDER, which demonstrates negative ion production and extraction with the same size and same structure as the ITER ion source, will start the operation in 2014 as part of the NBTF. The development of the accelerator is progressed mainly in JAEA with the MeV test facility, and also the computer simulation of beam optics also developed in JAEA, CEA and RFX. The full ITER heating and current drive beam performance will be demonstrated in MITICA, which will start operation in 2016 as part of the NBTF.

Kuriyama, M.; Boilson, D.; Hemsworth, R.; Svensson, L.; Graceffa, J.; Schunke, B.; Decamps, H.; Tanaka, M. [ITER Organization, 13067 Saint-Paul-lez-Durance Cede (France); Bonicelli, T.; Masiello, A. [Fusion for Energy, C/Josep Pla 2, 08019 Barcelona (Spain); Bigi, M.; Chitarin, G.; Luchetta, A.; Marcuzzi, D.; Pasqualotto, R.; Pomaro, N.; Serianni, G.; Sonato, P.; Toigo, V.; Zaccaria, P. [Consorzio RFX. Corso Stati Uniti 4 35127 Padova (Italy)

2011-09-26T23:59:59.000Z

373

MeV Measurements of Gamma-Ray Bursts by CGRO-COMPTEL  

E-Print Network (OSTI)

. Since the launch of the Compton Gamma--Ray Observatory in April 1991, the imaging COMPTEL telescope has accumulated positions and 0.75-- 30 MeV spectra of more than thirty gamma-ray bursts within its ¸ ß sr field of view. In an ongoing collaboration with BACODINE/GCN, COMPTEL positions are relayed to a global network of multiwavelength observers in near real time (¸ 10 minutes). Here we summarize the MeV properties, and present spatial, spectral, and temporal data for the latest of these events, GRB 970807. In concurrence with earlier SMM and current BATSE, OSSE, and EGRET measurements, COMPTEL data add to the accumulating evidence that GRB spectra do seem to have a characteristic shape: a peak (in E 2 F (E)) around several hundred keV; and a power law above (spectral index 1.5-3.5) extending beyond the COMPTEL energy range. Introduction The COMPTEL experiment on board the Compton Gamma-Ray Observatory (CGRO) has accumulated a sample of 33 gamma--ray bursts in its ¸ ß sr field of ...

A Connors; Connors Collmar; W Hermsen; L Kuiper; M Mcconnell; F Pelaez; J M Ryan; V Schonfelder; M Varendorff; O R Williams

1998-01-01T23:59:59.000Z

374

MASS YIELDS FROM FISSION BY NEUTRONS BETWEEN THERMAL AND 14.7 MEV  

SciTech Connect

Radiochemically determined mass-yield curves are given for the fission of U/sup 235/ and U/sup 238/ by l4.7-Mev neutrons. Symmetric and to a less extent, very asymmetric modes of fission are more probable at that energy than in thermal fission. Yields of four fission products from the fission of U/sup 235/ have been measured as a function of neutron energy in the range thermal to 14 Mev. The yields of eleven masses have been measured from the fission of Np/sup 237/ by degraded fission spectrum neutrons. The mass-yield curve is similar to that from the thermal fission of Pu/sup 239/ with a ratio of peak to valley yields of approximately 175. Relative yields of one peak fission product and four valley fission products have been determdned under the following conditions: fission of U/sup 235/ and Pu/sup 239/ with thermal neutrons; fission of U/sup 235/ Pu/sup 239/ and U/sup 238/ with fission spectrum neutrons; and fission of U//sup 235/ and Pu/sup 239/ with the intermediate neutron spectrum at the center of the Los Alamos Fast Reactor. Absolute yields of Moss have been determined from the fission of U/sup 235/,Pu/sup 239/ with thermal neutrons. (auth)

Ford, G.P.; Gilmore, J.S.; Ames, D.P.; Balagna, J.P.; Barnes, J.W.; Comstock, A.A.; Cowan, G.A.; Elkin, P.B.; Hoffman, D.C.; Knobeloch, G.W.; Lang, E.J.; Melnick, M.A.; Minkkinen, C.O.; Pollock, B.D.; Sattizshn, J.E.; Stanley, C.W.; Warren, B.

1956-02-01T23:59:59.000Z

375

NUCLEAR REACTOR  

DOE Patents (OSTI)

This patent covers a power-producing nuclear reactor in which fuel rods of slightly enriched U are moderated by heavy water and cooled by liquid metal. The fuel rods arranged parallel to one another in a circle are contained in a large outer closed-end conduit that extends into a tank containing the heavy water. Liquid metal is introduced into the large conduit by a small inner conduit that extends within the circle of fuel rods to a point near the lower closed end of the outer conduit. (AEC) Production Reactors

Young, G.

1963-01-01T23:59:59.000Z

376

Nuclear Photonics  

E-Print Network (OSTI)

With new gamma-beam facilities like MEGa-ray at LLNL (USA) or ELI-NP at Bucharest with 10^13 g/s and a bandwidth of Delta E_g/E_g ~10^-3, a new era of g-beams with energies Duke Univ., USA) with 10^8 g/s and Delta E_g/E_g~0.03. Even a seeded quantum FEL for g-beams may become possible, with much higher brilliance and spectral flux. At the same time new exciting possibilities open up for focused g-beams. We describe a new experiment at the g-beam of the ILL reactor (Grenoble), where we observed for the first time that the index of refraction for g-beams is determined by virtual pair creation. Using a combination of refractive and reflective optics, efficient monochromators for g-beams are being developed. Thus we have to optimize the system of the g-beam facility, the g-beam optics and g-detectors. We can trade g-intensity for band width, going down to Delta E_g/E_g ~ 10^-6 and address individual nuclear levels. 'Nuclear photonics' stresses the importance of nuclear applications. We can address with g-beams individual nuclear isotopes and not just elements like with X-ray beams. Compared to X rays, g-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 micron resolution using Nucl. Reson. Fluorescence for detection with eV resolution and high spatial resolution. We discuss the dominating M1 and E1 excitations like 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.

D. Habs; M. M. Guenther; M. Jentschel; P. G. Thirolf

2012-01-21T23:59:59.000Z

377

GTRI: Reducing Nuclear Threats | National Nuclear Security Administrat...  

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

Reducing Nuclear Threats | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response...

378

Nuclear fusion in muonic deuterium-helium complex  

E-Print Network (OSTI)

Experimental study of the nuclear fusion reaction in charge-asymmetrical d-mu-3He complex is presented. The 14.6 MeV protons were detected by three pairs of Si(dE-E) telescopes placed around the cryogenic target filled with the deuterium + helium-3 gas at 34 K. The 6.85 keV gamma rays emitted during the de-excitation of d-mu-3He complex were detected by a germanium detector. The measurements were performed at two target densities, 0.0585 and 0.169 (relative to liquid hydrogen density) with an atomic concentration of 3He c=0.0469. The values of the effective rate of nuclear fusion in d-mu-3He was obtained for the first time, and the J=0 nuclear fusion rate in d-mu-3He was derived.

V. M. Bystritsky; M. Filipowicz; V. V. Gerasimov; P. E. Knowles; F. Mulhauser; N. P. Popov; V. A. Stolupin; V. P. Volnykh; J. Wozniak

2005-06-22T23:59:59.000Z

379

Parity Dependent Shell Model Level Densities for Nuclear Astrophysics  

E-Print Network (OSTI)

Recently, we developed a methodology [1-4] of calculating the spin and parity dependent shell model nuclear level density, which is a very useful ingredient in the Huaser-Feshbach theory for calculating reaction rates for nuclear astrophysics[5]. We developed new techniques based on nuclear statistical spectroscopy [6] to calculate the spin and parity projected moments of the nuclear shell model Hamiltonian, that can be further used to obtain an accurate description of the nuclear level density up to about 15 MeV excitation energy. These techniques were fully tested for the sd-shell nuclei and some light f p-shell nuclei, by comparing with the level density obtained from exact shell model diagonalization. Here we present for the first time comparisons with the exact shell model diagonalization for nuclei heavier than 56 Ni, in a model space spanned by the f 5/2, p 3/2, p 1/2 and g 9/2 orbits. The ratio of nuclear level densities of opposite parities is also discussed. This analysis was possible due to a new and very efficient nuclear shell model code [7] that can provide a large number of states of given spin and parity. PoS(NIC X)132

Mike Scott; Mihai Horoi; Mike Scott

2008-01-01T23:59:59.000Z

380

Global Nuclear Energy Partnership Fact Sheet - Minimize Nuclear...  

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

Global Nuclear Energy Partnership Fact Sheet - Minimize Nuclear Waste Global Nuclear Energy Partnership Fact Sheet - Minimize Nuclear Waste GNEP will increase the efficiency in the...

Note: This page contains sample records for the topic "mev g-1cm2 nuclear" 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

Nuclear Weapons Testing Resumes | National Nuclear Security Administra...  

National Nuclear Security Administration (NNSA)

> Nuclear Weapons Testing Resumes Nuclear Weapons Testing Resumes September 01, 1961 Washington, DC Nuclear Weapons Testing Resumes The Soviet Union breaks the nuclear test...

382

Nuclear Waste Policy Act Signed | National Nuclear Security Administra...  

National Nuclear Security Administration (NNSA)

> Nuclear Waste Policy Act Signed Nuclear Waste Policy Act Signed January 07, 1983 Washington, DC Nuclear Waste Policy Act Signed President Reagan signs the Nuclear Waste...

383

National Nuclear SecurityAdministration's Nuclear ExplosiveSafety...  

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

National Nuclear SecurityAdministration's Nuclear ExplosiveSafety Study Program, IG-0581 National Nuclear SecurityAdministration's Nuclear ExplosiveSafety Study Program, IG-0581 To...

384

Regulation of nuclear envelope breakdown by the nuclear pore complex;.  

E-Print Network (OSTI)

??In higher eukaryotes, each time a cell divides dramatic changes occur at the nuclear periphery. The nuclear envelope, nuclear pore complexes, and nuclear lamina must… (more)

Prunuske, Amy Jeanette

2006-01-01T23:59:59.000Z

385

WEB RESOURCE: Nuclear Materials and Nuclear Fuel/Waste  

Science Conference Proceedings (OSTI)

Feb 12, 2007 ... Select, Sandbox, Open Discussion Regarding Materials for Nuclear ... Trends in Nuclear Power, The Nuclear Fuel Cycle, Nuclear Science ...

386

Nuclear Security Enterprise | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Enterprise | National Nuclear Security Administration Enterprise | 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 Nuclear Security Enterprise Home > About Us > Our Programs > Defense Programs > Nuclear Security Enterprise Nuclear Security Enterprise The Nuclear Security Enterprise (NSE) mission is to ensure the Nation sustains a safe, secure, and effective nuclear deterrent through the

387

Innovations in Nuclear Infrastructure  

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

Innovations in Nuclear Infrastructure Innovations in Nuclear Infrastructure and Education (INIE) Innovations in Nuclear Infrastructure and Education (INIE) Presented to the Nuclear Energy Research Advisory Committee Crystal City, Virginia John Gutteridge Director, University Programs Office of Nuclear Energy, Science and Technology September 30 - October 1, 2002 Office of Nuclear Energy, Science and Technology Gutteridge/Sep-Oct_02 INIE-NERAC.ppt (2) INIE The Stimuli .... INIE The Stimuli .... 6 Declining number of operating university research/training reactors 6 Dwindling student population in nuclear engineering 6 Closing or loss of identity of university nuclear engineering programs 6 Looming shortage of nuclear engineering graduates 6 Threat of additional reactor closures -- Cornell, Michigan, MIT

388

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

389

Capabilities - Nuclear Engineering Division (Argonne)  

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

Nuclear Waste Form and Repository Performance Modeling Nuclear Systems Technologies Nuclear Criticality Safety Research Reactor Analysis System Process Monitoring,...

390

National Nuclear Data Center  

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

Internal Radiation Dose Evaluated Nuclear (reaction) Data File Experimental nuclear reaction data Sigma Retrieval & Plotting Nuclear structure & decay Data Nuclear Science References Experimental Unevaluated Nuclear Data List Evaluated Nuclear Structure Data File NNDC databases Ground and isomeric states properties Nuclear structure & decay data journal Nuclear reaction model code Tools and Publications US Nuclear Data Program Cross Section Evaluation Working Group Nuclear data networks Basic properties of atomic nuclei Parameters & thermal values Basic properties of atomic nuclei Internal Radiation Dose Evaluated Nuclear (reaction) Data File Experimental nuclear reaction data Sigma Retrieval & Plotting Nuclear structure & decay Data Nuclear Science References Experimental Unevaluated Nuclear Data List Evaluated Nuclear Structure Data File NNDC databases Ground and isomeric states properties Nuclear structure & decay data journal Nuclear reaction model code Tools and Publications US Nuclear Data Program Cross Section Evaluation Working Group Nuclear data networks Basic properties of atomic nuclei Parameters & thermal values Basic properties of atomic nuclei Homepage BNL Home Site Index - Go USDNP and CSEWG November 18-22! USNDP CSEWG Agenda Thanks for attending! EXFOR 20,000 Milestone EXFOR Milestone 20,000 experimental works are now in the EXFOR database!

391

Nuclear Data | More Science | ORNL  

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

Data SHARE Nuclear Data Nuclear Data ORNL is a recognized, international leader in nuclear data research and development (R&D) to support nuclear applications analyses. For more...

392

Nuclear Power and the Environment  

Reports and Publications (EIA)

This Nuclear Issue Paper discusses Nuclear Plant Wastes, Interactions of Fossil Fuel and Nuclear Power Waste Decisions, and the Environmental Position of Nuclear Power.

2013-05-30T23:59:59.000Z

393

Isospin-asymmetric nuclear matter  

E-Print Network (OSTI)

This study uses classical molecular dynamics to simulate infinite nuclear matter and study the effect of isospin asymmetry on bulk properties such as energy per nucleon, pressure, saturation density, compressibility and symmetry energy. The simulations are performed on systems embedded in periodic boundary conditions with densities and temperatures in the ranges $\\rho$=0.02 to 0.2 fm$^{-3}$ and T = 1, 2, 3, 4 and 5 MeV, and with isospin content of $x=Z/A$=0.3, 0.4 and 0.5. The results indicate that symmetric and asymmetric matter are self-bound at some temperatures and exhibit phase transitions from a liquid phase to a liquid-gas mixture. The main effect of isospin asymmetry is found to be a reduction of the equilibrium densities, a softening of the compressibility and a disappearance of the liquid-gas phase transition. A procedure leading to the evaluation of the symmetry energy and its variation with the temperature was devised, implemented and compared to mean field theory results.

J. A. López; E. Ramírez-Homs; R. González; R. Ravelo

2013-11-24T23:59:59.000Z

394

Nuclear Force from Lattice QCD  

E-Print Network (OSTI)

The first lattice QCD result on the nuclear force (the NN potential) is presented in the quenched level. The standard Wilson gauge action and the standard Wilson quark action are employed on the lattice of the size 16^3\\times 24 with the gauge coupling beta=5.7 and the hopping parameter kappa=0.1665. To obtain the NN potential, we adopt a method recently proposed by CP-PACS collaboration to study the pi pi scattering phase shift. It turns out that this method provides the NN potentials which are faithful to those obtained in the analysis of NN scattering data. By identifying the equal-time Bethe-Salpeter wave function with the Schroedinger wave function for the two nucleon system, the NN potential is reconstructed so that the wave function satisfies the time-independent Schroedinger equation. In this report, we restrict ourselves to the J^P=0^+ and I=1 channel, which enables us to pick up unambiguously the ``central'' NN potential V_{central}(r). The resulting potential is seen to posses a clear repulsive core of about 500 MeV at short distance (r < 0.5 fm). Although the attraction in the intermediate and long distance regions is still missing in the present lattice set-up, our method is appeared to be quite promising in reconstructing the NN potential with lattice QCD.

Noriyoshi ISHII; Sinya AOKI; Tetsuo HATSUDA

2006-09-30T23:59:59.000Z

395

NUCLEAR REACTOR  

DOE Patents (OSTI)

A nuclear reactor of the homogeneous liquid fuel type is described wherein the fissionable isotope is suspended or dissolved in a liquid moderator such as water. The reactor core is comprised essentially of a spherical vessel for containing the reactive composition surrounded by a reflector, preferably of beryllium oxide. The reactive composition may be an ordinary water solution of a soluble salt of uranium, the quantity of fissionable isotope in solution being sufficient to provide a critical mass in the vessel. The liquid fuel is stored in a tank of non-crtttcal geometry below the reactor vessel and outside of the reflector and is passed from the tank to the vessel through a pipe connecting the two by air pressure means. Neutron absorbing control and safety rods are operated within slots in the reflector adjacent to the vessel.

Christy, R.F.

1958-07-15T23:59:59.000Z

396

Secondary standards (non-activation) for neutron data measurements above 20 MeV  

DOE Green Energy (OSTI)

In addition to H(n,p) scattering and {sup 235,238}U(n,f) reactions, secondary standards for neutron flux determination may be useful for neutron energies above 20 MeV. For experiments where gamma rays are detected, reference gamma-ray production cross sections are relevant. For neutron-induced charged particle production, standard (n,p) and (n,alpha) cross sections would be helpful. Total cross section standards would serve to check the accuracy of these measurements. These secondary standards are desirable because they can be used with the same detector systems employed in measuring the quantities of interest. Uncertainties due to detector efficiency, geometrical effects, timing and length of flight paths can therefore be significantly reduced. Several secondary standards that do not depend on activation techniques are proposed. 14 refs.

Haight, R.C.

1991-01-01T23:59:59.000Z

397

Ion shaking in the 200 MeV XLS-ring  

Science Conference Proceedings (OSTI)

It has been shown that ions, trapped inside the beam`s potential, can be removed by the clearing electrodes when the amplitude of the ion oscillation is increased by vertically shaking the ions. We will report on a similar experiment in the 200 Mev XLS ring. The design of the ion clearing system for the ring and the first results obtained, were already reported. In the present series of experiments, RF voltage was applied on a pair of vertical strip-lines. The frequency was scanned in the range of the ion (from H{sub 2} to CO{sub 2}) bounce frequencies in the ring (1--10 MHz). The response of the beam size, vertical betatron tune and lifetime was studied.

Bozoki, E.; Kramer, S.L.

1992-12-31T23:59:59.000Z

398

Ion shaking in the 200 MeV XLS-ring  

Science Conference Proceedings (OSTI)

It has been shown that ions, trapped inside the beam's potential, can be removed by the clearing electrodes when the amplitude of the ion oscillation is increased by vertically shaking the ions. We will report on a similar experiment in the 200 Mev XLS ring. The design of the ion clearing system for the ring and the first results obtained, were already reported. In the present series of experiments, RF voltage was applied on a pair of vertical strip-lines. The frequency was scanned in the range of the ion (from H[sub 2] to CO[sub 2]) bounce frequencies in the ring (1--10 MHz). The response of the beam size, vertical betatron tune and lifetime was studied.

Bozoki, E.; Kramer, S.L.

1992-01-01T23:59:59.000Z

399

Vector and tensor analyzing powers in deuteron-proton breakup at 130 MeV  

SciTech Connect

High-precision data for vector and tensor analyzing powers for the {sup 1}H(d-vector,pp)n reaction at a 130-MeV deuteron beam energy have been measured over a large part of the phase space. Theoretical predictions based on various approaches to describe the three nucleon (3N) system reproduce very well the vector analyzing power data and no three-nucleon force effect is observed for these observables. Tensor analyzing powers are also very well reproduced by calculations in almost the whole studied region, but locally certain discrepancies are observed. For A{sub xy} such discrepancies usually appear, or are enhanced, when model 3N forces, TM99 or Urbana, are included. Problems of all theoretical approaches with describing A{sub xx} and A{sub yy} are limited to very small kinematical regions, usually characterized by the lowest energy of the relative motion of the two protons.

Stephan, E.; Biegun, A.; Klos, B.; Micherdzinska, A.; Zipper, W. [Institute of Physics, University of Silesia, PL-40007 Katowice (Poland); Kistryn, St.; Sworst, R.; Bodek, K.; Ciepal, I.; Golak, J.; Skibinski, R.; Witala, H.; Wronska, A.; Zejma, J. [Institute of Physics, Jagiellonian University, PL-30059 Krakow (Poland); Deltuva, A. [Centro de Fisica Nuclear da Universidade de Lisboa, P-1649-003 Lisboa (Portugal); Epelbaum, E. [Institute fuer Theoretische Physik II, Ruhr-Universitaet Bochum, D-44780 Bochum (Germany); Fonseca, A. C. [Centro de Fisica Nuclear, Universidade de Lisboa, P-1649-003 Lisboa (Portugal); Kalantar-Nayestanaki, N.; Kis, M.; Mahjour-Shafiei, M. [Kernfysisch Versneller Instituut, University of Groningen, NL-9747 AA Groningen (Netherlands)

2010-07-15T23:59:59.000Z

400

Light-ion production in the interaction of 96 MeV neutrons with carbon  

E-Print Network (OSTI)

Double-differential cross sections for light-ion (p, d, t, 3He and alpha) production in carbon induced by 96 MeV neutrons have been measured at eight laboratory angles from 20 degrees to 160 degrees in steps of 20 degrees. Experimental techniques are presented as well as procedures for data taking and data reduction. Deduced energy-differential, angle-differential and production cross sections are reported. Experimental cross sections are compared with theoretical reaction model calculations and experimental data in the literature. The measured particle data show marked discrepancies from the results of the model calculations in spectral shape and magnitude. The measured production cross sections for protons, deuterons, tritons, 3He, and alpha particles support the trends suggested by data at lower energies.

U. Tippawan; S. Pomp; J. Blomgren; S. Dangtip; C. Gustavsson; J. Klug; P. Nadel-Turonski; L. Nilsson; M. Österlund; N. Olsson; O. Jonsson; A. V. Prokofiev; P. -U. Renberg; V. Corcalciuc; Y. Watanabe; A. J. Koning

2008-12-03T23:59:59.000Z

Note: This page contains sample records for the topic "mev g-1cm2 nuclear" 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

MEASUREMENTS OF THE H(N,N) ANGULAR DISTRIBUTION OF 10MEV NEUTRON ENERGY.  

DOE Green Energy (OSTI)

Relative measurements of the cross section for scattering of neutrons by protons have been made at 10 MeV neutron energy for center-of-mass neutron scattering angles from 60' to 180'. The measurements were made using the Ohio University Accelerator Laboratory's tandem Van de Graaff accelerator with the D(d,n) reaction as the neutron source. The data are in good agreement with predictions from the phase shift analyses of Arndt, the groups of Nijmegen and Bonn, and the ENDF/B-V evaluation. The ENDF/B-VI evaluation does not appear to have the same angular dependence as the data. KEYWORDS: hydrogen cross section, neutron cross section standard, hydrogen angular distribution standard

Boukharouba, N.; Bateman, F. B. (Fred B.); Brient, C. E.; Carlson, A. D.; Grimes, S. M.; Massey, T. N.; Haight, Robert C.; Carlson, Allan D.; Wasson, O. A.

2001-01-01T23:59:59.000Z

402

Search for axioelectric effect of 5.5 MeV solar axions using BGO detectors  

E-Print Network (OSTI)

A search for axioelectric absorption of solar axions produced in the $ p + d \\rightarrow {^3\\rm{He}}+\\gamma (5.5 \\rm{MeV})$ reactions has been performed with a BGO detector placed in a low-background setup. A model-independent limit on an axion-nucleon and axion-electron coupling constant has been obtained: $| g_{Ae}\\times g_{AN}^3|< 2.9\\times 10^{-9}$ for 90% confidence level. The constrains of the axion-electron coupling have been obtained for hadronic axion with masses in (0.1 - 1) MeV range: $|g_{Ae}| \\leq (1.4 - 9.7)\\times 10^{-7}$.

A. V. Derbin; S. V. Bakhlanov; I. S. Dratchnev; A. S. Kayunov; V. N. Muratova

2013-06-19T23:59:59.000Z

403

NUCLEAR DEFORMATION ENERGIES  

E-Print Network (OSTI)

J.R. Nix, Theory of Nuclear Fission and Superheavy Nuclei,energy maps relevant for nuclear fission and nucleus-nucleusin connection with nuclear fission. The need for a better

Blocki, J.

2009-01-01T23:59:59.000Z

404

WORKSHOP ON NUCLEAR DYNAMICS  

E-Print Network (OSTI)

Physics of the Office of High Energy and Nuclear Physics ofPhysics of the Office of High Energy and Nuclear Physics ofPhysics of the Office of High Energy and Nuclear Physics of

Myers, W.D.

2010-01-01T23:59:59.000Z

405

NUCLEAR STRUCTURE DATABASE  

E-Print Network (OSTI)

d UNIVERSITY OF CALIFORNIA NUCLEAR STRUCTURE DATABASE R. B.IS UNLfflfTEO LBL-11089 NUCLEAR STRUCTURE DATABASE by R.B.and E. Browne June 1980 Nuclear Science Division University

Firestone, R.B.

2010-01-01T23:59:59.000Z

406

RELATIVISTIC NUCLEAR COLLISIONS: THEORY  

E-Print Network (OSTI)

Effects in Relativistic Nuclear Collisions", Preprint LBL-Pion Interferometry of Nuclear Collisions. 18.1 M.Gyulassy,was supported by the Office of Nuclear Physics of the U.S.

Gyulassy, M.

2010-01-01T23:59:59.000Z

407

Asians Resist Nuclear Threat  

E-Print Network (OSTI)

Midway carries soma 100 nuclear weapons and the missiles onthe removal of U. S. nuclear weapons from Asia. It is ti-aeof U. S. tactical nuclear weapons This set the figure for

Schirmer, Daniel Boone

1981-01-01T23:59:59.000Z

408

WORKSHOP ON NUCLEAR DYNAMICS  

E-Print Network (OSTI)

Complete Events in Medium-Energy Nuclear Collisions" C-Y.+ corrections. (A) The nuclear potential-energy problem isquantum dynamics in high-energy nuclear collisions. We have

Myers, W.D.

2010-01-01T23:59:59.000Z

409

Nuclear Security 101 | National Nuclear Security Administration  

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

101 | National Nuclear Security Administration 101 | 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 Home > Media Room > Fact Sheets > Nuclear Security 101 Fact Sheet Nuclear Security 101 Mar 23, 2012 The goal of United States Government's nuclear security programs is to prevent the illegal possession, use or transfer of nuclear material,

410

Nuclear Security | National Nuclear Security Administration  

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

| National Nuclear Security Administration | 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 Nuclear Security Home > About Us > Our Programs > Nuclear Security Nuclear Security The Office of Defense Nuclear Security (DNS) is responsible for the development and implementation of security programs for NNSA. In this capacity, DNS is the NNSA line management organization responsible for

411

Nuclear Security 101 | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

101 | National Nuclear Security Administration 101 | 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 Home > Media Room > Fact Sheets > Nuclear Security 101 Fact Sheet Nuclear Security 101 Mar 23, 2012 The goal of United States Government's nuclear security programs is to prevent the illegal possession, use or transfer of nuclear material,

412

Nuclear Security | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

| National Nuclear Security Administration | 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 Nuclear Security Home > About Us > Our Programs > Nuclear Security Nuclear Security The Office of Defense Nuclear Security (DNS) is responsible for the development and implementation of security programs for NNSA. In this capacity, DNS is the NNSA line management organization responsible for

413

Nuclear Structure and Nuclear Reactions | Argonne Leadership...  

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

the ab initio no-core full configuration approach," Phys. Rev. C 86, 034325 (2012) Nuclear Structure and Nuclear Reactions PI Name: James Vary PI Email: jvary@iastate.edu...

414

Nuclear power and nuclear-weapons proliferation  

SciTech Connect

The danger that fissile isotopes may be diverted from nuclear power production to the construction of nuclear weapons would be aggravated by a switch to the plutonium breeder: but future uranium supplies are uncertain.

Moniz, E.J.; Neff, T.L.

1978-04-01T23:59:59.000Z

415

Nuclear Quadrupole Moments and Nuclear Shell Structure  

DOE R&D Accomplishments (OSTI)

Describes a simple model, based on nuclear shell considerations, which leads to the proper behavior of known nuclear quadrupole moments, although predictions of the magnitudes of some quadrupole moments are seriously in error.

Townes, C. H.; Foley, H. M.; Low, W.

1950-06-23T23:59:59.000Z

416

Nuclear Fuel Cycle & Vulnerabilities  

Science Conference Proceedings (OSTI)

The objective of safeguards is the timely detection of diversion of significant quantities of nuclear material from peaceful nuclear activities to the manufacture of nuclear weapons or of other nuclear explosive devices or for purposes unknown, and deterrence of such diversion by the risk of early detection. The safeguards system should be designed to provide credible assurances that there has been no diversion of declared nuclear material and no undeclared nuclear material and activities.

Boyer, Brian D. [Los Alamos National Laboratory

2012-06-18T23:59:59.000Z

417

Search for the giant pairing vibration through (p,t) reactions around 50 and 60 MeV  

Science Conference Proceedings (OSTI)

The existence of the giant pairing vibration (GPV) in {sup 120}Sn and {sup 208}Pb was investigated using the (p,t) reaction at incident proton energies of 50 MeV and 60 MeV for the scattering angles 0 deg. and 7 deg. No clear signature for the GPV was found, providing an upper limit for the cross section of {sigma}{sub max} = 0.2 mb. Theoretical interpretations for the low cross section of the GPV are discussed.

Mouginot, B.; Khan, E.; Azaiez, F.; Franchoo, S.; Ramus, A.; Scarpaci, J. A.; Stefan, I. [Institut de Physique Nucleaire, Universite Paris-Sud, IN2P3-CNRS, F-91406 Orsay Cedex (France); Neveling, R.; Buthelezi, E. Z.; Foertsch, S. V.; Smit, F. D. [iThemba LABS, P.O. Box 722, Somerset West 7129 (South Africa); Fujita, H.; Usman, I. [iThemba LABS, P.O. Box 722, Somerset West 7129 (South Africa); School of Physics, University of the Witwatersrand, Johannesburg 2050 (South Africa); Mabiala, J.; Mira, J. P.; Swartz, J. A. [iThemba LABS, P.O. Box 722, Somerset West 7129 (South Africa); Department of Physics, University of Stellenbosch, Matieland 7602 (South Africa); Papka, P. [Department of Physics, University of Stellenbosch, Matieland 7602 (South Africa)

2011-03-15T23:59:59.000Z

418

Angular momentum dependence of the nuclear level density parameter  

SciTech Connect

Dependence of nuclear level density parameter on the angular momentum and temperature is investigated in a theoretical framework using the statistical theory of hot rotating nuclei. The structural effects are incorporated by including shell correction, shape, and deformation. The nuclei around Zapprox =50 with an excitation energy range of 30 to 40 MeV are considered. The calculations are in good agreement with the experimentally deduced inverse level density parameter values especially for {sup 109}In, {sup 113}Sb, {sup 122}Te, {sup 123}I, and {sup 127}Cs nuclei.

Aggarwal, Mamta [UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai-Kalina Campus, Mumbai 400 098 (India); Kailas, S. [Nuclear Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085 (India)

2010-04-15T23:59:59.000Z

419

Nuclear Systems Technologies - Nuclear Engineering Division ...  

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

Departments involved: Research & Test Reactor | Engineering Development and Applications "Decommissioning of Nuclear Facilities" training courses Argonne Decommissioning Training...

420

Publications 2000 - Nuclear Data Program - Nuclear Engineering...  

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

0 Nuclear Data Program Overview Current Projects & Recent Activities Collaborating Organizations Publications Publications 2011 Publications 2010 Publications 2009...

Note: This page contains sample records for the topic "mev g-1cm2 nuclear" 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

Nuclear Operations | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering...

422

Excitation functions of proton-induced reactions on natural Nd in the 10-30 MeV energy range, and production of radionuclides relevant for double-? decay  

E-Print Network (OSTI)

A preferred candidate for neutrinoless double-{\\beta} decay, 150Nd, is present in natural neodymium at an abundance level of 5.64%. However, neodymium could be activated by cosmic rays during the period it spends on the Earth's surface. Its activation by protons is therefore of interest when it comes to estimating the possible disturbance effects and increased background during neutrinoless double-{\\beta}-decay experiments like Sudbury Neutrino Observatory plus liquid scintillator (SNO+). In most cases, we lack experimental data on proton-induced reactions on neodymium. Therefore, a measurement of cross sections has been performed for the formation of 141Pm, 143Pm, 144Pm, 146Pm, 148Pm, 148Pmm, 149Pm, 150Pm, 140Nd, 141Nd, 147Nd, 149Nd, 138Prm, 139Pr, 142Pr, and 139Ce by 10-30 MeV protons. Oxidation-protected metal foil targets of natural isotopic abundance were irradiated by the usual stacked-foil technique on the external proton beam of the isochronous cyclotron U-120M at the Nuclear Physics Institute at \\v{R}e\\v{z} near Prague. Special attention was paid to the excitation functions of long-lived radionuclides. The measured data were compared with TENDL-2010 library data (TALYS code).

O. Lebeda; V. Lozza; P. Schrock; J. Štursa; K. Zuber

2012-02-23T23:59:59.000Z

423

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

424

NUCLEAR PROXIMITY FORCES  

E-Print Network (OSTI)

theory describing the structure of the nuclear surface region, so that one may take two flat nuclear surfaces and calculate their interaction energy

Randrup, J.

2011-01-01T23:59:59.000Z

425

Sustainable Nuclear Energy  

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

Energy Enabling a Sustainable Nuclear Energy Future Since its inception, Argonne R&D has supported U.S. Department of Energy nuclear programs and initiatives, including today's...

426

Nuclear & Particle Physics Directorate  

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

Nuclear & Particle Physics Directorate Nuclear and Particle Physics (NPP) at BNL comprises the Collider-Accelerator Department (including the NASA Space Radiation Laboratory,...

427

Nuclear Safety Workshops  

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

Directives Nuclear and Facility Safety Policy Rules Nuclear Safety Workshops Technical Standards Program Search Approved Standards Recently Approved RevCom...

428

Nuclear Sites Map  

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

reactor operations, nuclear research, weapons disassembly, maintenance and testing, hot cell operations, nuclear material storage and processing and waste disposal. Each...

429

Nuclear Waste Management  

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

Waste Management's Yucca Mountain Project and the Office of Nuclear Energy's Advanced Fuel Cycle Initiative (AFCI) and Global Nuclear Energy Partnership (GNEP) programs. Efforts...

430

Nuclear Nonproliferation Programs | ORNL  

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

and development to 'boots-on-the-ground' implementation. This work ranges from uranium fuel cycle research to detection technologies and nuclear forensics. The nuclear...

431

Nuclear Fuels - Modeling  

Science Conference Proceedings (OSTI)

Mar 12, 2012... for the Current and Advanced Nuclear Reactors: Nuclear Fuels - Modeling .... Using density functional theory (DFT), we have predicted that ...

432

Partial-wave analysis of elastic {sup 4}He{sup 4}He scattering in the energy range 40-50 MeV  

Science Conference Proceedings (OSTI)

A partial-wave analysis of elastic {sup 4}He{sup 4}He scattering is performed in the energy range 40-50 MeV.

Dubovichenko, S. B. [Fesenkov Astrophysical Institute (Kazakhstan)], E-mail: sergey@dubovichenko.net

2008-01-15T23:59:59.000Z

433

Assessment of Nuclear Resonance Fluorescence for Spent Nuclear Fuel Assay  

E-Print Network (OSTI)

the National Nuclear Security Administration, US Departmentof Energys National Nuclear Security Administration (NNSA)

Quiter, Brian

2012-01-01T23:59:59.000Z

434

Assessment of Nuclear Resonance Fluorescence for Spent Nuclear Fuel Assay  

E-Print Network (OSTI)

Security of the National Nuclear Security Administration, USof Energys National Nuclear Security Administration (NNSA)

Quiter, Brian

2012-01-01T23:59:59.000Z

435

Monitoring system for a liquid-cooled nuclear fission reactor  

SciTech Connect

A monitoring system for detecting changes in the liquid levels in various regions of a water-cooled nuclear power reactor, viz., in the downcomer, in the core, in the inlet and outlet plenums, at the head, and elsewhere; and also for detecting changes in the density of the liquid in these regions. A plurality of gamma radiation detectors are used, arranged vertically along the outside of the reactor vessel, and collimator means for each detector limits the gamma-radiation it receives as emitting from only isolated regions of the vessel. Excess neutrons produced by the fission reaction will be captured by the water coolant, by the steel reactor walls, or by the fuel or control structures in the vessel. Neutron capture by steel generates gamma radiation having an energy level of the order of 5-12 MeV, whereas neutron capture by water provides an energy level of approximately 2.2 MeV, and neutron capture by the fission fuel or its cladding provides an energy level of 1 MeV or less. The intensity of neutron capture thus changes significantly at any water-metal interface. Comparative analysis of adjacent gamma detectors senses changes from the normal condition with liquid coolant present to advise of changes in the presence and/or density of the coolant at these specific regions. The gamma detectors can also sense fission-product gas accumulation at the reactor head to advise of a failure of fuel-pin cladding.

DeVolpi, Alexander (Bolingbrook, IL)

1987-01-01T23:59:59.000Z

436

Office of Nuclear Safety  

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

Office of Nuclear Safety (HS-30) Office of Nuclear Safety (HS-30) Office of Nuclear Safety Home » Directives » Nuclear and Facility Safety Policy Rules » Nuclear Safety Workshops Technical Standards Program » Search » Approved Standards » Recently Approved » RevCom for TSP » Monthly Status Reports » Archive » Feedback DOE Nuclear Safety Research & Development Program Office of Nuclear Safety Basis & Facility Design (HS-31) Office of Nuclear Safety Basis & Facility Design - About Us » Nuclear Policy Technical Positions/Interpretations » Risk Assessment Working Group » Criticality Safety » DOE O 420.1C Facility Safety » Beyond Design Basis Events Office of Nuclear Facility Safety Programs (HS-32) Office of Nuclear Facility Safety Programs - About Us

437

Medical Isotope Production Using A 60 MeV Linear Electron Accelerator , R.C. Block1  

E-Print Network (OSTI)

Medical Isotope Production Using A 60 MeV Linear Electron Accelerator Y. Danon1 , R.C. Block1 , R@rpi.edu) 2 AlphaMed Inc, 20 Juniper Ridge Road, Acton, MA 01720 INTRODUCTION Medical isotopes can be produced

Danon, Yaron

438

The Energy Loss of Li and C Ions with MeV Energies in the Polycarbonate and Polypropylene  

SciTech Connect

Stopping power and straggling of Li ions and C ions at mean energy 3.8-5.4 MeV and 5.6-6.9 MeV, respectively, in polycarbonate (PC) and at mean energy 3.7-5.2 MeV and 6.8-8.0 MeV in polypropylene (PP) foils have been measured using ion beams from a Tandetron 4130 MC accelerator. The ions scattered from a thin, primary gold target were registered by a surface barrier detector partially covered with a thin foil of the investigated polymer. The stopping power was determined from the energy difference between the signals from the ions directly backscattered from the Au layer and the ions backscattered and slowed down in the foil. The foil thickness was determined by the weighing procedure. The experimentally determined stopping powers were compared with those calculated with the SRIM 2010 code. The measured stopping powers are in good agreement for Li and C in PC, the differences being within 0.1-1.6% for Li and 0.2-2.1% for C. For Li and C in PP, the stopping powers are lower than the calculated ones, the differences being within 0.5-2.8% for Li and 3.6-6.1% for C. The energy straggling was determined from the width of the RBS signals. The experimentally determined energy straggling was found to fluctuate around the values calculated according to Bohr theory.

Miksova, R.; Mackova, A. [Nuclear Physics Institute, Academy of Sciences of the Czech Republic, 25068 Rez (Czech Republic); Department of Physics, Faculty of Science, J.E. Purkinje University, Ceske mladeze 8, 40096 Usti nad Labem (Czech Republic); Hnatowicz, V. [Nuclear Physics Institute, Academy of Sciences of the Czech Republic, 25068 Rez (Czech Republic)

2011-12-13T23:59:59.000Z

439

Analyzing power of the {sup 40}Ca(p-vector,p{alpha}) reaction at 100 MeV  

Science Conference Proceedings (OSTI)

Analyzing powers have been measured for the {sup 40}Ca(p-vector,p{alpha}){sup 36}Ar reaction at an incident energy of 100 MeV for coplanar scattering angles corresponding to zero recoil momentum of the residual nucleus. Predictions based on the distorted wave impulse approximation fail to reproduce the data.

Neveling, R.; Buthelezi, Z.; Foertsch, S. V.; Lawrie, J. J.; Steyn, G. F.; Smit, F. D. [iThemba Laboratory for Accelerator Based Sciences, Somerset West 7129 (South Africa); Cowley, A. A. [iThemba Laboratory for Accelerator Based Sciences, Somerset West 7129 (South Africa); Department of Physics, University of Stellenbosch, Matieland 7602 (South Africa); Fujita, H. [iThemba Laboratory for Accelerator Based Sciences, Somerset West 7129 (South Africa); School of Physics, University of the Witwatersrand, Johannesburg 2050 (South Africa); Hillhouse, G. C. [Department of Physics, University of Stellenbosch, Matieland 7602 (South Africa); Wyngaardt, S. M. [Department of Physics, University of Cape Town, Rondebosch 7700 (South Africa); Botha, N. T. [iThemba Laboratory for Accelerator Based Sciences, Somerset West 7129 (South Africa); Department of Physics, University of Cape Town, Rondebosch 7700 (South Africa); Mudau, L. [iThemba Laboratory for Accelerator Based Sciences, Somerset West 7129 (South Africa); Department of Physics, University of the Western Cape, Bellville 7535 (South Africa); Ntshangase, S. S. [iThemba Laboratory for Accelerator Based Sciences, Somerset West 7129 (South Africa); Department of Physics, University of Zululand, Kwadlangezwa 3886 (South Africa)

2008-03-15T23:59:59.000Z

440

CHARGE-EXCHANGE SCATTERING OF NEGATIVE PIONS BY HYDROGEN AT 230,260, 290, 317 AND 371 MeV  

DOE Green Energy (OSTI)

The differential cross section for charge-exchange scattering of negative pions by hydrogen has been observed at 230, 260, 290, 317, and 371 Mev. The reaction was observed by detecting one gamma ray from the {pi}{sup 0} decay with a scintillation-counter telescope.

Caris, John C.

1960-03-18T23:59:59.000Z

Note: This page contains sample records for the topic "mev g-1cm2 nuclear" 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

Calibration of a long counter for fast neutrons with energies from 2 to 14 MeV  

E-Print Network (OSTI)

To determine if a Hansen and McKibben type shielded long counter has a flat response from 2 MeV to 14 Mev detector efficiency was experimentally measured using a PuBe source. Calculations using the Monte Carlo program, MCNP, were performed to determine the efficiency of the detector for both PuBe and 14 MeV neutrons. The detector used a boron triflouride proportional counter as its counting device. Measurements were made using two 1 0 curie PuBe neutron sources (combined source strength of 4.02E+07 neutrons/second) to determine the detectors efficiency at the mean energy of the source, 4.3 MeV. The detector was found to have an efficiency of 0.85 counts-centimeter2/neutron at a source to detector distance of 1 meter. This compares favorably with previous measurements with long counters of similar configuration. The determination of the counter's effective center indicated that the effective center for the counter is 8.7 + 0.1 centimeters behind the front face of the detector. Attempts to use foil activation to determine the flux at the counter proved unsuccessful as the source strength was insufficient to activate the foils sufficiently. The Monte Carlo code, MCNP, was used to model a 150 KeV neutron generator source for 14 MeV neutrons, and the combined 1 0 Ci PuBe source experiment in order to determine the (n, a) reaction rate in the BF3 detector of the long counter, thereby simulating the long counter's response. For the PuBe source the efficiency of the long counter was computed to be 0.54 counts-centimeter2/particle at a source to detector distance of 60 centimeters. This is slightly less than the 0.6 counts-centimeter2/neutron achieved experimentally with the actual long counter, for a 20 Ci PuBe source prior to applying the correction for the detector's effective center, at the same distance. The MCNP model also was used to determined a long counter efficiency of 0.39 counts-centimeter2/particle for 14.74 MeV neutrons at a source to detector distance of 60 centimeters. This suggests that the long counter response is not flat over the 2 to 14 MeV energy range; however, tests indicated that the long counters efficiency on depends on the BF3 tube position in the long counter and that a flatter response over the energy range of interest may be obtained by adjusting the position of the BF3 tube.

Orr, Michael Lee

1993-01-01T23:59:59.000Z

442

Nuclear reactor  

DOE Patents (OSTI)

A nuclear reactor in which the core components, including fuel-rod assemblies, control-rod assemblies, fertile rod-assemblies, and removable shielding assemblies, are supported by a plurality of separate inlet modular units. These units are referred to as inlet module units to distinguish them from the modules of the upper internals of the reactor. The modular units are supported, each removable independently of the others, in liners in the supporting structure for the lower internals of the reactor. The core assemblies are removably supported in integral receptacles or sockets of the modular units. The liners, units, sockets and assmblies have inlet openings for entry of the fluid. The modular units are each removably mounted in the liners with fluid seals interposed between the opening in the liner and inlet module into which the fluid enters and the upper and lower portion of the liner. Each assembly is similarly mounted in a corresponding receptacle with fluid seals interposed between the openings where the fluid enters and the lower portion of the receptacle or fitting closely in these regions. As fluid flows along each core assembly a pressure drop is produced along the fluid so that the fluid which emerges from each core assembly is at a lower pressure than the fluid which enters the core assembly. However because of the seals interposed in the mountings of the units and assemblies the pressures above and below the units and assemblies are balanced and the units are held in the liners and the assemblies are held in the receptacles by their weights as they have a higher specific gravity than the fluid. The low-pressure spaces between each module and its liner and between each core assembly and its module is vented to the low-pressure regions of the vessel to assure that fluid which leaks through the seals does not accumulate and destroy the hydraulic balance.

Pennell, William E. (Greensburg, PA); Rowan, William J. (Monroeville, PA)

1977-01-01T23:59:59.000Z

443

NUCLEAR PLANT OPERATIONS AND  

E-Print Network (OSTI)

NUCLEAR PLANT OPERATIONS AND CONTROL KEYWORDS: neutron flux, cur- rent noise, vibration diagnostics: Swedish Nuclear Power Inspectorate SE- 10658 Stockholm, Sweden. NUCLEAR TECHNOLOGY VOL. 131 AUG. 2000 239 by the Swedish Nuclear Power Inspectorate, contract 14.5-980942-98242. REFERENCES 1. A. M. WEINBERG and H. C

Pázsit, Imre

444

Focus Article Nuclear winter  

E-Print Network (OSTI)

Focus Article Nuclear winter Alan Robock Nuclear winter is the term for a theory describing the climatic effects of nuclear war. Smoke from the fires started by nuclear weapons, especially the black, sooty smoke from cities and industrial facilities, would be heated by the Sun, lofted into the upper

Robock, Alan

445

Nuclear Security & Safety  

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

The Energy Department is working to enhance nuclear security through defense, nonproliferation, and environmental efforts.

446

Availability and Nuclear Properties  

Science Conference Proceedings (OSTI)

...Availability and Nuclear Properties The first six transplutonium metals, americium (Am), curium (Cm), berkelium

447

Nuclear Medicine CT Angiography  

E-Print Network (OSTI)

Nuclear Medicine CT Angiography Stress Testing Rotation The Nuclear Medicine/CT angiography. Understand the indications for exercise treadmill testing and specific nuclear cardiology tests, safe use patient and learn the importance of physical and pharmacologic stress in nuclear cardiology 3. Interpret

Ford, James

448

Global Nuclear Energy Partnership Fact Sheet - Develop Enhanced Nuclear  

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

Global Nuclear Energy Partnership Fact Sheet - Develop Enhanced Global Nuclear Energy Partnership Fact Sheet - Develop Enhanced Nuclear Safeguards Global Nuclear Energy Partnership Fact Sheet - Develop Enhanced Nuclear Safeguards GNEP will help prevent misuse of civilian nuclear facilities for nonpeaceful purposes by developing enhanced safeguards programs and technologies. International nuclear safeguards are integral to implementing the GNEP vision of a peaceful expansion of nuclear energy and demonstration of more proliferation-resistant fuel cycle technologies. Global Nuclear Energy Partnership Fact Sheet - Develop Enhanced Nuclear Safeguards More Documents & Publications GNEP Element:Develop Enhanced Nuclear Safeguards Global Nuclear Energy Partnership Fact Sheet Global Nuclear Energy Partnership Fact Sheet - Demonstrate Small-Scale

449

Experimental evidence for a liquid-gas phase transition in nuclear systems  

SciTech Connect

At certain combinations of temperature and density, nuclear matter may exist as a liquid-gas mixture exhibiting phase instabilities, a characteristic signature of which may be found in the emission of intermediate-mass fragments in nuclear collisions. The present analysis of fragment distributions from proton-- and heavy-ion--induced reactions, in the framework of a theory of condensation, is suggestive of the occurrence of such phase transitions with a critical exponent kapprox.1.7 and a critical temperature T/sub C/approx.12 MeV.

Panagiotou, A.D.; Curtin, M.W.; Toki, H.; Scott, D.K.; Siemens, P.J.

1984-02-13T23:59:59.000Z

450

Nuclear Deployment Scorecards | Department of Energy  

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

Initiatives Nuclear Reactor Technologies Nuclear Deployment Scorecards Nuclear Deployment Scorecards January 1, 2014 Quarterly Nuclear Deployment Scorecard - January 2014 The...

451

Major Programs - Nuclear Engineering Division (Argonne)  

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

Assistance Program International Nuclear Safety Materials Disposition Decontamination & Decommissioning Nuclear Criticality Safety Nuclear Data Program Nuclear Waste Form...

452

Executive Bios: Christopher Grandy - Nuclear Engineering Division...  

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

Nuclear Safety Materials Disposition Decontamination & Decommissioning Nuclear Criticality Safety Nuclear Data Program Nuclear Waste Form Modeling Departments Engineering...

453

Nuclear Engineering Division of Argonne National Laboratory:...  

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

Nuclear Safety Materials Disposition Decontamination & Decommissioning Nuclear Criticality Safety Nuclear Data Program Nuclear Waste Form Modeling Departments Engineering...

454

Fuel Cycle Technologies Program - Nuclear Engineering Division...  

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

Nuclear Safety Materials Disposition Decontamination & Decommissioning Nuclear Criticality Safety Nuclear Data Program Nuclear Waste Form Modeling Departments Engineering...

455

International Safety Projects - Nuclear Engineering Division...  

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

Nuclear Safety Materials Disposition Decontamination & Decommissioning Nuclear Criticality Safety Nuclear Data Program Nuclear Waste Form Modeling Departments Engineering...

456

The Dawn of the Nuclear Age  

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

Nuclear Safety Materials Disposition Decontamination & Decommissioning Nuclear Criticality Safety Nuclear Data Program Nuclear Waste Form Modeling Departments Engineering...

457

Facility Safety Assessment - Nuclear Engineering Division (Argonne...  

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

Nuclear Safety Materials Disposition Decontamination & Decommissioning Nuclear Criticality Safety Nuclear Data Program Nuclear Waste Form Modeling Departments Engineering...

458

Computer Facilities - Nuclear Engineering Division (Argonne)  

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

Nuclear Safety Materials Disposition Decontamination & Decommissioning Nuclear Criticality Safety Nuclear Data Program Nuclear Waste Form Modeling Departments Engineering...

459

Advanced Computation & Visualization - Nuclear Engineering Division...  

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

Nuclear Safety Materials Disposition Decontamination & Decommissioning Nuclear Criticality Safety Nuclear Data Program Nuclear Waste Form Modeling Departments Engineering...

460

Steam Generator Tube Integrity Facilities - Nuclear Engineering...  

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

Nuclear Safety Materials Disposition Decontamination & Decommissioning Nuclear Criticality Safety Nuclear Data Program Nuclear Waste Form Modeling Departments Engineering...

Note: This page contains sample records for the topic "mev g-1cm2 nuclear" 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

Safety - Vulnerability Assessment Team - Nuclear Engineering...  

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

Nuclear Safety Materials Disposition Decontamination & Decommissioning Nuclear Criticality Safety Nuclear Data Program Nuclear Waste Form Modeling Departments Engineering...

462

Materials for Nuclear Power: Digital Resource Center ...  

Science Conference Proceedings (OSTI)

Select, Sandbox, Open Discussion Regarding Materials for Nuclear Power ... Nuclear Power Background, Trends in Nuclear Power, The Nuclear Fuel Cycle ...

463

Nuclear Energy Enabling Technologies | Department of Energy  

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

Energy Enabling Technologies Nuclear Energy Enabling Technologies Nuclear Reactor Technologies Fuel Cycle Technologies International Nuclear Energy Policy and Cooperation Nuclear...

464

Mev Measurements Of Gamma-Ray Bursts By Cgro-Comptel  

E-Print Network (OSTI)

Since the launch of the Compton Gamma--Ray Observatory in April 1991, the imaging COMPTEL telescope has accumulated positions and 0.75--30 MeV spectra of more than thirty gamma-ray bursts within its ¸ p sr field of view. In an ongoing collaboration with BACODINE and New Mexico State University (BCN), COMPTEL positions are relayed to a global network of multiwavelength observers in near real time (¸ 10 minutes). Here we present spatial, spectral, and temporal data for the latest of these events, GRBs 960808, 961001, and 961212. In concurrence with earlier SMM and current BATSE, OSSE, and EGRET measurements, COMPTEL data add to the accumulating evidence that GRB spectra do seem to have a characteristic shape: a peak (in E 2 F(E)) around several hundred keV; and a power law above (spectral index 1.5-3.5) extending beyond the COMPTEL energy range. INTRODUCTION The detection of fading light from the explosive event known as GRB 970228 profoundly changed the decades-old controversy over th...

Connors Bennett; K Bennett; W Collmar; W Hermsen; L Kuiper; M Mcconnell; F Pelaez; J M Ryan; V Schonfelder

1997-01-01T23:59:59.000Z

465

Inspection of the objects on the sea floor by using 14 MeV tagged neutrons  

SciTech Connect

Variety of objects found on the sea floor needs to be inspected for the presence of materials which represent the threat to the environment and to the safety of humans. We have demonstrated that the sealed tube 14 MeV neutron generator with the detection of associated alpha particles can be used underwater when mounted inside ROV equipped with the hydraulic legs and variety of sensors for the inspection of such objects for the presence of threat materials. Such a system is performing the measurement by using the NaI gamma detector and an API-120 neutron generator which could be rotated in order to maximize the inspected target volume. The neutron beam intensity during the 10-30 min. measurements is usually 1 x 10{sup 7} n/s in 4{pi}. In this report the experimental results for some of commonly found objects containing TNT explosive or its simulant are presented. The measured gamma spectra are dominant by C, O and Fe peaks enabling the determination of the presence of explosives inside the ammunition shell. Parameters influencing the C/O ratio are discussed in some details. (authors)

Valkovic, V. [A.C.T.d.o.o., Prilesje 4, Zagreb (Croatia); Sudac, D.; Obhodas, J. [Dept. of Experimental Physics, Inst. Ruder Boskovic, Zagreb (Croatia); Matika, D. [Inst. for Researches and Development of Defense Systems, Zagreb (Croatia); Kollar, R. [A.C.T.d.o.o., Prilesje 4, Zagreb (Croatia); Nad, K.; Orlic, Z. [Dept. of Experimental Physics, Inst. Ruder Boskovic, Zagreb (Croatia)

2011-07-01T23:59:59.000Z

466

Lateral propagation of MeV electrons generated by femtosecond laser irradiation  

Science Conference Proceedings (OSTI)

The propagation of MeV electrons generated by intense (approx =10{sup 20} W/cm{sup 2}) femtosecond laser irradiation, in the lateral direction perpendicular to the incident laser beam, was studied using targets consisting of irradiated metal wires and neighboring spectator wires embedded in electrically conductive (aluminum) or resistive (Teflon) substrates. The K shell spectra in the energy range 40-60 keV from wires of Gd, Dy, Hf, and W were recorded by a transmission crystal spectrometer. The spectra were produced by 1s electron ionization in the irradiated wire and by energetic electron propagation through the substrate material to the spectator wire of a different metal. The electron range and energy were determined from the relative K shell emissions from the irradiated and spectator wires separated by varying substrate lateral distances of up to 1 mm. It was found that electron propagation through Teflon was inhibited, compared to aluminum, implying a relatively weak return current and incomplete space-charge neutralization. The energetic electron propagation in the direction parallel to the electric field of the laser beam was larger than perpendicular to the electric field. Energetic electron production was lower when directly irradiating aluminum or Teflon compared to irradiating the heavy metal wires. These experiments are important for the determination of the energetic electron production mechanism and for understanding lateral electron propagation that can be detrimental to fast-ignition fusion and hard x-ray backlighter radiography.

Seely, J. F. [Space Science Division, Naval Research Laboratory, Washington DC 20375 (United States); Szabo, C. I. [Laboratoire Kastler Brossel, Ecole Normale Superieure, CNRS, Universite P. et M. Curie-Paris 6 Case 74, 4, Place Jussieu, 75252 Paris Cedex 05 (France); Audebert, P.; Brambrink, E.; Tabakhoff, E. [Laboratoire pour L'Utilisation des Lasers Intenses (LULI), Ecole Polytechnique, 91128 Palaiseau Cedex (France); Hudson, L. T. [National Institute of Standards and Technology, Gaithersburg, Maryland 20899 (United States)

2010-02-15T23:59:59.000Z

467

MeV dark matter in the 3+1+1 model  

E-Print Network (OSTI)

The existence of light sterile neutrinos in the eV mass range with relatively large mixing angles with the active neutrinos has been proposed for a variety of reasons, including to improve the fit to the LSND and MiniBooNE neutrino oscillation experiments, and reactor disappearance experiments. In ref. Phys. Rev. D 84, 053001 (2011), it was shown that neutrino mixing with a heavier sterile neutrino, in the mass range between 33 eV and several GeV, could significantly affect and improve the agreement between neutrino oscillation models with light sterile neutrinos and short baseline experimental results, allowing for a new source of CP violation in appearance experiments and for different apparent mixing angles in appearance and disappearance experiments. However in refs. Phys. Rev. D 86, 033015 (2012) and JHEP 1204, 083 (2012) it was shown that various collider experiment, supernovae, and cosmological constraints can eliminate most of the parameter region where such a heavy sterile neutrino can have a significant effect on neutrino oscillations. In this paper we consider the effects of allowing a new light scalar in the MeV mass region, which is a potential dark matter candidate, to interact with the sterile neutrinos, and show that the resulting model is a consistent theory of neutrino oscillation anomalies and dark matter which can also potentially explain the INTEGRAL excess of 511 keV gamma rays in the central region of the galaxy.

Jinrui Huang; Ann E Nelson

2013-06-25T23:59:59.000Z

468

Photofission-Based, Nuclear Material Detection: Technology Demonstration  

SciTech Connect

The Idaho National Engineering and Environmental Laboratory (INEEL), the Los Alamos National Laboratory (LANL), and the Advanced Research and Applications Corporation (ARACOR) [Sunnyvale, California] performed a photonuclear technology demonstration for shielded nuclear material detection during August 21–22, 2002, at the LANL TA-18 facility. The demonstration used the Pulsed Photonuclear Assessment Technique (PPAT) that focused on the application of a photofission-based, nuclear material detection method as a viable complement to the ARACOR Eagle inspection platform. The Eagle is a mobile and fully operational truck and cargo inspection system that uses a 6-MeV electron accelerator to perform real-time radiography. This imaging is performed using an approved “radiation-safe” or “cabinet safe” operation relative to the operators, inspectors, and any stowaways within the inspected vehicles. While the PPAT has been primarily developed for active interrogation, its neutron detection system also maintains a complete and effective passive detection capability.

Jones, James Litton; Yoon, Woo Yong; Haskell, Kevin James; Norman, Daren Reeve; Moss, C. E.; Goulding, C. A.; Hollas, C. L.; Myers, W. L.; Franco, Ed

2002-12-01T23:59:59.000Z

469

Nuclear and Radiological Material Security | National Nuclear...  

National Nuclear Security Administration (NNSA)

to intensive site security efforts, NNSA is also working to build international standards and criteria for nuclear and radiological security. This includes NNSA's work to...

470

Tennessee Nuclear Profile - Watts Bar Nuclear Plant  

U.S. Energy Information Administration (EIA) Indexed Site

Watts Bar Nuclear Plant" "Unit","Summer capacity (mw)","Net generation (thousand mwh)","Summer capacity factor (percent)","Type","Commercial operation date","License expiration...

471

Wisconsin Nuclear Profile - Point Beach Nuclear Plant  

U.S. Energy Information Administration (EIA) Indexed Site

Point Beach Nuclear Plant" "Unit","Summer capacity (mw)","Net generation (thousand mwh)","Summer capacity factor (percent)","Type","Commercial operation date","License expiration...

472

Massachusetts Nuclear Profile - Pilgrim Nuclear Power Station  

U.S. Energy Information Administration (EIA) Indexed Site

Pilgrim Nuclear Power Station" "Unit","Summer capacity (mw)","Net generation (thousand mwh)","Summer cpacity factor (percent)","Type","Commercial operation date","License...

473

Arkansas Nuclear Profile - Arkansas Nuclear One  

U.S. Energy Information Administration (EIA) Indexed Site

Nuclear One" "Unit","Summer capacity (mw)","Net generation (thousand mwh)","Summer capacity factor (percent)","Type","Commercial operation date","License expiration date"...

474

Nuclear Criticality Safety - Nuclear Engineering Division (Argonne...  

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

Criticality Safety Nuclear Criticality Safety Overview Experience Analysis Tools Current NCS Activities Current R&D Activities DOE Criticality Safety Support Group (CSSG) Other...

475

Nuclear / Radiological Advisory Team | National Nuclear Security...  

National Nuclear Security Administration (NNSA)

advice for both domestic and international nuclear or radiological incidents. It is led by a Senior Energy Official who runs the NNSA field operation and who coordinates NNSA...

476

Dynamics of nuclear envelope and nuclear pore complex formation  

E-Print Network (OSTI)

Limited expression of nuclear pore membrane glycoprotein 210suggests cell-type specific nuclear pores in metazoans. Expand Dultz, E. (2008). Nuclear pore complex assembly through

Anderson, Daniel J.

2008-01-01T23:59:59.000Z

477

The Nuclear Revolution, Relative Gains, and International Nuclear Assistance  

E-Print Network (OSTI)

2004. The nuclear fuel cycle: A challenge forhave mastered parts of the nuclear fuel cycle, but have notprovision of fuel-cycle services, in which nuclear capable

Kroenig, Matthew

2006-01-01T23:59:59.000Z

478

Ground-Based Nuclear Detonation Detection | National Nuclear...  

National Nuclear Security Administration (NNSA)

Ground-Based Nuclear Detonation Detection | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency...

479

Eisenhower Halts Nuclear Weapons Testing | National Nuclear Security...  

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

Eisenhower Halts Nuclear Weapons Testing | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency...

480

The Nuclear Revolution, Relative Gains, and International Nuclear Assistance  

E-Print Network (OSTI)

of nuclear proliferation: a quantitative test. Journal ofINTERNATIONAL NUCLEAR ASSISTANCE DATA To test this strategictheory of nuclear proliferation faces a difficult test in

Kroenig, Matthew

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "mev g-1cm2 nuclear" 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.


481

The Nuclear Revolution, Relative Gains, and International Nuclear Assistance  

E-Print Network (OSTI)

nature of the nuclear recipient’s security environment. ThisKeywords: Nuclear weapons proliferation; security; securitynature of the nuclear recipient’s security environment. This

Kroenig, Matthew

2006-01-01T23:59:59.000Z

482

/sup 3/H(p,n)/sup 3/He differential cross sections below 5 MeV and the n-/sup 3/He cross sections. [2. 5 and 4. 0 MeV  

Science Conference Proceedings (OSTI)

Complete angular distributions for the /sup 3/H(p,n)/sup 3/He reaction were measured at 2.5 and 4.0 MeV with the /sup 1/H(t,n)/sup 3/He reaction used to obtain the backward yields. Because the distributions are peaked about 17% more strongly in the backward direction than the best previous elevation suggests (based on extrapolated data), the /sup 3/H(p,n)/sup 3/He reaction cross sections below 5 MeV were re-evaluated without the extrapolated data. The results were compared with recent total n-/sup 3/He cross-section results. 3 figures, 4 tables.

Drosg, M.

1980-07-01T23:59:59.000Z

483

Nuclear Science at NERSC  

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

Accelerator Science Accelerator Science Astrophysics Biological Sciences Chemistry & Materials Science Climate & Earth Science Energy Science Engineering Science Environmental Science Fusion Science Math & Computer Science Nuclear Science Science Highlights NERSC Citations HPC Requirements Reviews Home » Science at NERSC » Nuclear Science Nuclear Science Experimental and theoretical nuclear research carried out at NERSC is driven by the quest for improving our understanding of the building blocks of matter. This includes discovering the origins of nuclei and identifying the forces that transform matter. Specific topics include: Nuclear astrophysics and the synthesis of nuclei in stars and elsewhere in the cosmos; Nuclear forces and quantum chromodynamics (QCD), the quantum field

484

Is Nuclear Energy the Solution?  

E-Print Network (OSTI)

009-0270-y Is Nuclear Energy the Solution? Milton H. Saier &in the last 50 years, nuclear energy subsidies have totaledadministration, the Global Nuclear Energy Partnership (GNEP)

Saier, Milton H.; Trevors, Jack T.

2010-01-01T23:59:59.000Z

485

Peace, Stability, and Nuclear Weapons  

E-Print Network (OSTI)

in South Asia, Pakistan’s nuclear military capability, alongof the nuclear club: India, Pakistan, and North Korea. Ifand then India became nuclear powers, and Pakistan naturally

Waltz, Kenneth N.

1995-01-01T23:59:59.000Z

486

nuclear energy legislation on track  

Science Conference Proceedings (OSTI)

07/8 - NUCLEAR ENERGY LEGISLATION ON TRACK ... the safety and economic viability of nuclear power, the management of nuclear waste, the advancement ...

487

Is Nuclear Energy the Solution?  

E-Print Network (OSTI)

clear; second, nuclear power plants are stated terroristinvesting in new nuclear power plants because they do notas things stand, new nuclear power plants will not be cost

Saier, Milton H.; Trevors, Jack T.

2010-01-01T23:59:59.000Z

488

Is Nuclear Energy the Solution?  

E-Print Network (OSTI)

radioactive spent nuclear fuel is stored at commercialmost polluting part of the nuclear fuel cycle. It would notthe reprocessing of spent nuclear fuel will face technical,

Saier, Milton H.; Trevors, Jack T.

2010-01-01T23:59:59.000Z

489

Reactor Technology | Nuclear Science | ORNL  

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

Research Areas Fuel Cycle Science & Technology Fusion Nuclear Science Isotope Development and Production Nuclear Security Science & Technology Nuclear Systems Modeling, Simulation...

490

NUCLEAR SCIENCE ANNUAL REPORT 1975  

E-Print Network (OSTI)

Gove and A. H. Wapstra, Nuclear Data Tables 11, 127 (1972).P. Jackson, Chalk River Nuclear Laboratories Report (1975)national Conference on Nuclear Structure and Spec­ troscopy,

Authors, Various

2010-01-01T23:59:59.000Z

491

Counterterrorism and Counterproliferation | National Nuclear...  

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

America's nuclear agenda, which affirms the central importance of the Nuclear Non-Proliferation Treaty." - President Obama on the Nuclear Posture Review, April 6, 2010 "The...

492

The Evolution of Swift/BAT blazars and the origin of the MeV background  

Science Conference Proceedings (OSTI)

We use 3 years of data from the Swift/BAT survey to select a complete sample of X-ray blazars above 15 keV. This sample comprises 26 Flat-Spectrum Radio Quasars (FSRQs) and 12 BL Lac objects detected over a redshift range of 0.03 < z < 4.0. We use this sample to determine, for the first time in the 15-55 keV band, the evolution of blazars. We find that, contrary to the Seyfert-like AGNs detected by BAT, the population of blazars shows strong positive evolution. This evolution is comparable to the evolution of luminous optical QSOs and luminous X-ray selected AGNs. We also find evidence for an epoch-dependence of the evolution as determined previously for radio-quiet AGNs. We interpret both these findings as a strong link between accretion and jet activity. In our sample, the FSRQs evolve strongly, while our best-fit shows that BL Lacs might not evolve at all. The blazar population accounts for 10-20% (depending on the evolution of the BL Lacs) of the Cosmic X-ray background (CXB) in the 15-55 keV band. We find that FSRQs can explain the entire CXB emission for energies above 500 keV solving the mystery of the generation of the MeV background. The evolution of luminous FSRQs shows a peak in redshift (z{sub c} = 4.3 {+-} 0.5) which is larger than the one observed in QSOs and X-ray selected AGNs. We argue that FSRQs can be used as tracers of massive elliptical galaxies in the early Universe.

Ajello, M.; /SLAC /KIPAC, Menlo Park; Costamante, L.; /Stanford U., HEPL /KIPAC, Menlo Park; Sambruna, R.M.; Gehrels, N.; /NASA, Goddard; Chiang, J.; /SLAC /KIPAC, Menlo Park; Rau, A.; /Caltech; Escala, A.; /SLAC /KIPAC, Menlo Park /Cerro Calan Observ.; Greiner, J.; /Garching, Max Planck Inst., MPE; Tueller, J.; /NASA, Goddard; Wall, J.V.; /British Columbia U.; Mushotzky, R.F.; /NASA, Goddard

2009-10-17T23:59:59.000Z

493

Multidimensional study of a 50-MeV, 1500-rad/pulse radiographic linac, using the stagger-tuning concept  

Science Conference Proceedings (OSTI)

Stagger tuning of accelerator cavities, or blocks of cavities, can significantly enhance the achievable charge transfer through an electron linac operating in the stored-energy mode. The output bremsstrahlung flux can be increased over a conventional approach by an order of magnitude without any significant degradation in emittance growth or energy spread. Given a suitable injector, a 1500-rad/pulse, 50-MeV radiographic linac appears to be practical at a 400-MHz operating frequency; a 150-rad/pulse, 50-MeV radiographic linac will operate at 1300 MHz. A multidimensional study was made using the PARMELA code where several parameters, including beam current, synchronous phase angle, and beam radius, were varied while observing the effects on emittance and transmission efficiency.

Owen, R.K.; Fazio, M.V.; Boyd, T.J.

1983-01-01T23:59:59.000Z

494

Time scale of the fission process in the reaction 50A MeV 20Ne + 165Ho  

E-Print Network (OSTI)

The pre-scission time in the de-excitation of highly excited 178W produced in the reaction of 2ONe + 165Ho at 50A MeV was determined as a function of fission fragment mass asymmetry. The techniques employed used the pre-scission and post scission multiplicities of alpha particles, measured in coincidence with the fission fragments, to determine excitation energy of the fissioning nucleus at scission. Then the fission time was evaluated using statistical model calculations. It was found for a compound system of mass 178 amu and excitation energy of 580 MeV that the fission time is [ ] 1 x 10-20 s regardless of the asymmetry.

Mdeiwayeh, Nader

1995-01-01T23:59:59.000Z

495

JPRS report: Nuclear developments, [June 28, 1989  

Science Conference Proceedings (OSTI)

Partial contents include: Nuclear Power; Qinshan Plant; Nuclear Weapons; Nuclear Power Plants; Nuclear Waste; Nuclear Policy; Decontamination Devices; and Environmental Protection.

NONE

1989-06-28T23:59:59.000Z

496

Measurement of Reaction Rates in Li/V-Alloy Assembly with 14 MeV Neutron Irradiation  

Science Conference Proceedings (OSTI)

Nuclear Analysis & Experiments / Proceedings of the Nineteenth Topical Meeting on the Technology of Fusion Energy (TOFE) (Part 2)

T. Tanaka et al.

497

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

498

Nuclear Energy Program  

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

April 15, 2002 April 15, 2002 NERAC Spring 2002 Meeting Office of Nuclear Energy, Science and Technology Magwood/April15_02 NERAC.ppt (2) 2002 Will Be A Transition Year 2002 Will Be A Transition Year 6 Nuclear Power 2010 6 Major Program Developments 6 FY 2003 Budget Request Office of Nuclear Energy, Science and Technology Magwood/April15_02 NERAC.ppt (3) Nuclear Power 2010 Nuclear Power 2010 Nuclear Power 2010 is a new R&D initiative announced by Secretary Abraham on February 14, 2002. This initiative is designed to clear the way for the construction of new nuclear power plants by 2010. Office of Nuclear Energy, Science and Technology Magwood/April15_02 NERAC.ppt (4) Can We Build New U.S. Reactors By 2010? Yes! Can We Build New U.S. Reactors By 2010? Yes! Can Be Deployed by 2010

499

Semipalatinsk Nuclear Tests - Springer  

Science Conference Proceedings (OSTI)

3.1 Tower used for measurements of nuclear weapon effects near ground zero. 3.1 A Brief ... atomic bomb. This output is 6% of all the nuclear explosions in.

500

Guidebook to nuclear reactors  

SciTech Connect

A general introduction to reactor physics and theory is followed by descriptions of commercial nuclear reactor types. Future directions for nuclear power are also discussed. The technical level of the material is suitable for laymen.

Nero, A.V. Jr.

1976-05-01T23:59:59.000Z