Nuclear Data Evaluations for JENDL High-Energy File

Watanabe, Yukinobu; Fukahori, Tokio; Kosako, Kazuaki; Shigyo, Nobuhiro; Murata, Tōru; Yamano, Naoki; Hino, T.; Maki, Koichi; Nakashima, Hiroshi; Odano, Naoteru; Chiba, Satoshi

doi:10.1063/1.1945015

Cited by 49 publications

(22 citation statements)

References 12 publications

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“…In the previous study [2], we measured the neuron spectra in time and energy behind iron and concrete shields with several thicknesses from 10-to 200-cm using a p- 7 Li quasi-monoenergetic neutron source with the peak energy of 137 MeV, using a NE213 scintillator of 12.7-cm in diameter and 12.7-cm in thickness. The measured spectra behind the shields and attenuation lengths of the peak neutrons showed excellent agreement with simulations by the PHITS code [5] coupled with JENDL-HE data library [6] and the MCNPX code with LA-150 data library [7]). …”

Section: Introductionsupporting

confidence: 60%

Shielding benchmark experiment using hundreds of MeV quasi-monoenergetic neutron source by a large organic scintillator

Hagiwara

Iwase

Iwamoto

et al. 2014

Progress in Nuclear Science and Technology

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A shielding benchmark experiment has been performed using a quasi-monoenergetic 7 Li(p,n) neutron source with 246 and 389 MeV protons at the Research Center for Nuclear Physics (RCNP) of Osaka University, in order to investigate the accuracy of nuclear data libraries and calculation codes for hundreds of MeV neutrons. Time-of-flight and energy spectra behind bulk shields of 10-to 100-cm-thick iron, 25-to 300-cm-thick concrete and their composite are measured using a NE213 organic liquid scintillator with a diameter and thickness of 25.4 cm each. A time-of-flight and an unfolding method are applied to obtain the energy spectra transmitted through the shields for the peak energy region and continuous energy region, respectively. The simulations with the PHITS code coupled with the JENDL-HE nuclear data library are performed for comparison with the measured data. The measured attenuation lengths of peak neutrons with energies of 244 and 387 MeV are in good agreement with the calculation result by the PHITS code within 6 %.

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Section: Introductionsupporting

confidence: 60%

Shielding benchmark experiment using hundreds of MeV quasi-monoenergetic neutron source by a large organic scintillator

Hagiwara

Iwase

Iwamoto

et al. 2014

Progress in Nuclear Science and Technology

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“…In the near future, therefore, our aim must be to carefully benchmark the different models available in PHITS against the measurement of neutron production double differential cross sections for nuclear spallation reactions induced by 0.8, 1.5 and 3.0 GeV protons, respectively (Ishibashi et al, 1997). In addition, the Japanese Evaluated Nuclear Data Library High Energy File (JENDL-HE) has recently become available (Fukahori et al, 2002;Watanabe et al, 2005). It has been frequently used to reproduce various experimental values Sato et al, 2008b).…”

Section: Reliability Of Transport Modelsmentioning

confidence: 99%

Neutron production in the lunar subsurface from alpha particles in galactic cosmic rays

et al. 2011

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The neutron production from alpha particles in galactic cosmic rays (GCR) in the lunar subsurface has not been estimated with reliable precision despite its importance for lunar nuclear spectroscopy and space dosimetry. Here, we report our estimation of neutron production from GCR nuclei (protons and alpha particles) with the Particle and Heavy Ion Transport code System (PHITS), which includes several heavy ion interaction models. PHITS simulations of the equilibrium neutron density profiles in the lunar subsurface are compared with experimental data obtained in the Apollo 17 Lunar Neutron Probe Experiment. Our calculations successfully reproduced the data within an experimental error of 15%. Our estimation of neutron production from GCR nuclei, estimated by scaling that from protons by a factor of 1.27, is in good agreement within an error of 1% with the calculations using two different alpha particle interaction models in PHITS during a period of average activity of the solar cycle. However, we show that the factor depends on the incident GCR spectrum model used in the simulation. Therefore, we conclude that the use of heavy ion interaction models is important for estimating neutron production in the lunar subsurface.

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“…The neutron cross sections greatly influence the accuracy of the calculation by the Monte Carlo code. The JENDL/HE (Japanese Evaluated Nuclear Data Library/High Energy File) 7) compiles neutron cross section data for secondary particle productions (protons, deuterons, tritons, helium-3 ions, and helium-4 ions) from light mass targets from 20 MeV up to 3 GeV, but below 20 MeV no secondary particles are produced. In this study, from 20 MeV to 3 GeV, JENDL/HE File is selected and below 20 MeV the LA150 neutron data library 3) was used, because the LA150 library compiles charged particle productions (protons, deuterons, and helium-4 ions) from carbon nuclei below 20 MeV.…”

Section: Monte Carlo Simulationmentioning

confidence: 99%

Simulated Neutron Response Functions of Phoswich-Type Neutron Detector and Thin Organic Liquid Scintillator

Takada¹,

Yajima²,

Kamada³

et al. 2011

Progress in Nuclear Science and Technology

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Neutron response functions of a phoswich neutron detector and thin organic liquid scintillator were simulated using the multi-purpose Monte Carlo code MCNPX, incorporating functions of light outputs, energy resolutions, and uniformity of scintillation. The simulated response functions were verified by response-function measurement for high-energy neutrons produced by bombarding thin lithium targets with 10-to 80-MeV protons. Our procedures can simulate the response functions of the organic liquid scintillator and the phoswich neutron detector without limits of neutron energies, materials, or geometries. Based on the evaluated neutron response functions, we obtained neutron energy spectra using an unfolding method. One is the high-energy neutron spectrum at the aviation altitude, 10.8 km, and the other is at an intense fast neutron field for biological study in the National Institute of Radiological Sciences.

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Nuclear Data Evaluations for JENDL High-Energy File

Cited by 49 publications

References 12 publications

Shielding benchmark experiment using hundreds of MeV quasi-monoenergetic neutron source by a large organic scintillator

Shielding benchmark experiment using hundreds of MeV quasi-monoenergetic neutron source by a large organic scintillator

Neutron production in the lunar subsurface from alpha particles in galactic cosmic rays

Simulated Neutron Response Functions of Phoswich-Type Neutron Detector and Thin Organic Liquid Scintillator

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