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Journal Articles

Characterization of bremsstrahlung and $$gamma$$-rays of fuel debris

Matsumura, Taichi; Okumura, Keisuke; Fujita, Manabu*; Sakamoto, Masahiro; Terashima, Kenichi; Riyana, E. S.

Radiation Physics and Chemistry, 199, p.110298_1 - 110298_8, 2022/10

Journal Articles

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

 Times Cited Count:0 Percentile:0.01(Chemistry, Physical)

In this work, when radiation sources of $$^{137}$$Cs, $$^{90}$$Sr and $$^{90}$$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 $$^{137}$$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.

JAEA Reports

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 $$gamma$$-ray spectrum are reported.

Journal Articles

Radiation measuring technique by using organic liquid scintillator

Oyama, Yukio

Hoshasen, 24(1), p.77 - 83, 1998/00

no abstracts in English

Journal Articles

Measurement of gamma-ray spectra and heating rates in iron and stainless steel shields bombarded by deuterium-tritium neutrons and validation of secondary-gamma-ray data in evaluated nuclear data libraries

Maekawa, Fujio; Oyama, Yukio; Konno, Chikara; Wada, Masayuki*; Ikeda, Yujiro

Nuclear Science and Engineering, 126(2), p.187 - 200, 1997/06

 Times Cited Count:3 Percentile:30.99(Nuclear Science & Technology)

no abstracts in English

Journal Articles

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

 Times Cited Count:3 Percentile:33.29(Nuclear Science & Technology)

no abstracts in English

JAEA Reports

A Computer code for calculation of radioactive nuclide generation and depletion, decay heat and $$gamma$$ ray spectrum: FPGS90

Ihara, Hitoshi; Katakura, Junichi; Nakagawa, Tsuneo

JAERI-Data/Code 95-014, 216 Pages, 1995/11

JAERI-Data-Code-95-014.pdf:6.24MB

no abstracts in English

JAEA Reports

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

Journal Articles

Measurement techniques for fusion blanket neutronics experiments

Oyama, Yukio; Konno, Chikara; Ikeda, Yujiro; Maekawa, Fujio; Maekawa, Hiroshi; ; ; Nakamura, Tomoo; M.A.Abdou*; Bennett, E. F.*; et al.

Fusion Engineering and Design, 28, p.716 - 723, 1995/00

 Times Cited Count:5 Percentile:50.48(Nuclear Science & Technology)

no abstracts in English

Journal Articles

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

no abstracts in English

JAEA Reports

Bulk shielding experiments on large SS316 assemblies bombarded by D-T neutrons, volume I; Experiment

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

JAERI-Research 94-043, 96 Pages, 1994/12

JAERI-Research-94-043.pdf:3.5MB

no abstracts in English

Journal Articles

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

JAEA Reports

Benchmark experiment on a copper slab assembly bombarded by D-T neutrons

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

JAERI-M 94-038, 77 Pages, 1994/03

JAERI-M-94-038.pdf:2.68MB

no abstracts in English

Journal Articles

Verification of gamma-ray data in JENDL-3.1 through analysis of OKTAVIAN experiment

Maekawa, Fujio; Kosako, Kazuaki*; Oyama, Yukio

Proc., Int. Conf. on Nuclear Data for Science and Technology,Vol. 1, 0, p.792 - 794, 1994/00

no abstracts in English

Journal Articles

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

Journal Articles

Fusion reactor shielding experiment, 1

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

JAERI-M 92-027, p.290 - 297, 1992/03

no abstracts in English

Journal Articles

Benchmark experiment and analysis of a beryllium cylindrical assembly

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

Fusion Technology, 19, p.1949 - 1954, 1991/05

no abstracts in English

JAEA Reports

Recommended values of decay heat power and method to utilize the data

*; Katakura, Junichi; Yoshida, Tadashi*; Kato, Toshio*; Nakashima, Ryuzo*

JAERI-M 91-034, 97 Pages, 1991/03

JAERI-M-91-034.pdf:2.3MB

no abstracts in English

Journal Articles

External doses due to terrestrial gamma rays on the snow cover

Saito, Kimiaki

Radiation Protection Dosimetry, 35(1), p.31 - 39, 1991/00

 Times Cited Count:8 Percentile:66.71(Environmental Sciences)

no abstracts in English

Journal Articles

Residence time of crud on surface of channel box in JPDR

; Tachikawa, Enzo; ; ;

Journal of Nuclear Science and Technology, 24(4), p.297 - 307, 1987/04

 Times Cited Count:4 Percentile:45.5(Nuclear Science & Technology)

no abstracts in English

35 (Records 1-20 displayed on this page)