Evaluation of energy spectrum around structural materials in radiation environments

Matsumura, Taichi; Nagaishi, Ryuji; Katakura, Junichi*; Suzuki, Masahide*

Radiation Physics and Chemistry, 166, p.108493_1 - 108493_9, 2020/01

https://doi.org/10.1016/j.radphyschem.2019.108493

In this work, when radiation sources of Cs, Sr and Y were assumed to be put in the front of a plain SUS304 plate as a typical material submerged in water, energy spectra of secondary photons and electrons at the front and back sides of plate were simulated with changing the thickness of plate, and spacing between the source and plate by using a Monte Carlo calculation code of PHITS. In the case of Cs gamma-ray (monochromatic 662 keV), the energy spectra at the front side was smaller than those at the back side due to the existence of plate. Then the dependence of spectra on the plate thickness was observed more clearly at the back side than at the front side. It was clearly shown how the energy spectra of photons and electrons varied with the incident radiation type, the spacing, and the thickness.

Data on post irradiation experiments of heat resistant ceramic composite materials; PIE for 97M-13A

Baba, Shinichi; Ishihara, Masahiro; Sozawa, Shizuo; Sekino, Hajime

JAERI-Data/Code 2003-003, 394 Pages, 2003/03

JAERI-Data-Code-2003-003.pdf:13.63MB

The research on the radiation damage mechanism of heat resistant ceramic composite materials is one of the research subjects of the innovative basic research in the field of high temperature engineering, using the High Temperature engineering Test Reactor (HTTR). Three series of irradiation tests on the heat resistant ceramic composite materials, first to third irradiation test program, were carried out using the Japan Material Testing Reactor (JMTR). This is a summary report on the the first irradiation test program; irradiation induced dimensional change, thermal expansion coefficient, X-ray diffraction and -ray spectrum are reported.

Benchmark experiment on bulk shield of SS316/water with simulated superconducting magnet

Konno, Chikara; Maekawa, Fujio; Oyama, Yukio; Wada, Masayuki*; Ikeda, Yujiro; Maekawa, Hiroshi; Kasugai, Yoshimi; M.Z.Youssef*; A.Kumar*; M.A.Abdou*

Fusion Engineering and Design, 42, p.267 - 273, 1998/00

https://doi.org/10.1016/S0920-3796(97)00188-9

no abstracts in English

Radiation measuring technique by using organic liquid scintillator

Oyama, Yukio

Hoshasen, 24(1), p.77 - 83, 1998/00

http://ci.nii.ac.jp/naid/10029792669

no abstracts in English

Benchmark test of 14-MeV neutron-induced gamma-ray production data in JENDL-3.2 and FENDL/E-1.0 through analysis of the OKTAVIAN experiments

Maekawa, Fujio; Oyama, Yukio

Nuclear Science and Engineering, 123, p.272 - 281, 1996/00

https://doi.org/10.13182/NSE96-A24188

no abstracts in English

Bulk shielding experiment on a large SS316/water assembly bombarded by D-T neutrons, volume I; Experiment

Konno, Chikara; Maekawa, Fujio; Oyama, Yukio; Ikeda, Yujiro; Uno, Yoshitomo; Verzilov, Y.*; Wada, Masayuki*; Maekawa, Hiroshi

JAERI-Research 95-017, 71 Pages, 1995/03

JAERI-Research-95-017.pdf:3.09MB

no abstracts in English

Benchmark experiment on copper with D-T neutrons for verification of secondary gamma-ray data in JENDL-3.1

Maekawa, Fujio; Oyama, Yukio; Konno, Chikara; Ikeda, Yujiro; Maekawa, Hiroshi

Fusion Engineering and Design, 28, p.753 - 761, 1995/00

https://doi.org/10.1016/0920-3796(94)00234-X

no abstracts in English

Spectrum weighting function method for in-situ fast neutron and gamma-ray response measurements in fusion integral experiments with an NE213 scintillation detector

Oyama, Yukio; *; Maekawa, Hiroshi

Fusion Technology, 26, p.1098 - 1102, 1994/11

no abstracts in English

Measurement of the thermal neutron cross section of the Sr(n,)Sr reaction

Harada, Hideo*; Sekine, Toshiaki; ; ; Kobayashi, Katsutoshi; Otsuki, Tsutomu*; Kato, Toshio*

Journal of Nuclear Science and Technology, 31(3), p.173 - 179, 1994/03

https://doi.org/10.3327/jnst.31.173

no abstracts in English

Bulk shielding experiments on large SS316 assemblies

Konno, Chikara; Maekawa, Fujio; Ikeda, Yujiro; Oyama, Yukio; Kosako, Kazuaki*; Maekawa, Hiroshi

Fusion Technology, 21(3), p.2169 - 2173, 1992/05

no abstracts in English