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JAEA Reports

Theoretical verification of test results for self-powered radiation detectors; Comparison of $^{60}$ Co gamma irradiation test results with calculated results

Takeda, Ryoma; Shibata, Hiroshi; Takeuchi, Tomoaki; Nakano, Hiroko; Seki, Misaki; Ide, Hiroshi

JAEA-Testing 2024-007, 33 Pages, 2025/03

JAEA-Testing-2024-007.pdf:1.63MB

Japan Materials Testing Reactor (JMTR) in Oarai Research and Development Institute of the Japan Atomic Energy Agency (JAEA) has been developing various reactor materials, irradiation techniques and instruments for more than 30 years. Among them, the development of self-powered neutron detectors (SPNDs) and gamma detectors (SPGDs) has been carried out, and several research results have been reported. In this report, we compare and verify these test results with the theoretical output results obtained by the calculation code created in the JAEA report (JAEA-Data/Code 2021-018). The comparison was made with the irradiation test results of SPGD, a cobalt-60 gamma irradiation facility. As a result, it was found that the calculation results reproduced the test results well when the emitter diameter was relatively small compared to the range of Compton scattered electrons by the gamma rays. On the other hand, when the emitter diameter is relatively large, the output current in the test results is only about half of the calculated output current. The self-shielding effect of the emitter may be one of the reasons for the difference in the emitter diameter, and a new formulation, such as incorporating the effect of self-shielding caused by a larger emitter diameter or a non-isotropic -ray field as a change in the mean electron range or mean minimum energy in the calculation code, is necessary. The new formulation is necessary.

Journal Articles

A Proposed method to discriminate a gas derived from deep underground by focusing on the relationship between changes in methane and carbon dioxide concentrations in the atmosphere

Miyakawa, Kazuya; Shimo, Michito*; Niwa, Masakazu; Amano, Kenji; Tokunaga, Tomochika*; Tonokura, Kenichi*

Fukada Chishitsu Kenkyujo Nempo, (22), p.139 - 153, 2021/00

no abstracts in English

Journal Articles

Gamma-ray spectrum from thermal neutron capture on gadolinium-157

Hagiwara, Kaito*; Yano, Takatomi*; Das, P. K.*; Lorenz, S.*; Ou, Iwa*; Sakuda, Makoto*; Kimura, Atsushi; Nakamura, Shoji; Iwamoto, Nobuyuki; Harada, Hideo; et al.

Progress of Theoretical and Experimental Physics (Internet), 2019(2), p.023D01_1 - 023D01_26, 2019/02

https://doi.org/10.1093/ptep/ptz002

Times Cited Count：42 Percentile：88.42(Physics, Multidisciplinary)

Journal Articles

Cross section measurements of $^{155,157}$ Gd(n,) induced by thermal and epithermal neutrons

Mastromarco, M.*; Manna, A.*; Aberle, O.*; Andrzejewski, J.*; Harada, Hideo; Kimura, Atsushi; n_TOF Collaboration*; 116 of others*

European Physical Journal A, 55(1), p.9_1 - 9_20, 2019/01

https://doi.org/10.1140/epja/i2019-12692-7

Times Cited Count：27 Percentile：89.73(Physics, Nuclear)

Journal Articles

-decay half-lives of new neutron-rich rare-earth isotopes $^{159}$ Pm, $^{162}$ Sm, and $^{166}$ Gd

Ichikawa, Shinichi; Asai, Masato; Tsukada, Kazuaki; Haba, Hiromitsu*; Nagame, Yuichiro; Shibata, Michihiro*; Sakama, Minoru*; Kojima, Yasuaki*

Physical Review C, 71(6), p.067302_1 - 067302_4, 2005/06

https://doi.org/10.1103/PhysRevC.71.067302

Times Cited Count：19 Percentile：74.38(Physics, Nuclear)

The new neutron-rich raer-earth isotopes $^{159}$ Pm, $^{162}$ Sm, and $^{166}$ Gd produced in the proton-induced fission of 238U were identified using the JAERI on-line isotope separator (JAERI-ISOL) coupled to a gas-jet transport sysetm. The half-lives of $^{159}$ Pm, $^{162}$ Sm, and $^{166}$ Gd were determined to be 1.50.2s, 2.40.5s, and 4.81.0s, respectively. The partial decay scheme of $^{166}$ Gd wes constructed for - coincidence data. The improved half-life values of 25.62.2s wes obtained for the previously identified isotope $^{166}$ Tb. The half-lives measured in the present study are in good agreement with the theoretical predictions calculated by the second generation of the gross theory with the atomic masses evaluated by the Audei and Wapstra.

Journal Articles

Analysis of intracellular distribution of boron and gadolinium in 9L sarcoma cells using a single-ended accelerator (Micro PIXE)

Endo, Kiyoshi*; Shibata, Yasushi*; Yoshida, Fumiyo*; Nakai, Kei*; Yamamoto, Tetsuya*; Matsumura, Akira*; Ishii, Keizo*; Sakai, Takuro; Sato, Takahiro; Oikawa, Masakazu*; et al.

Proceedings of 11th World Congress on Neutron Capture Therapy (ISNCT-11) (CD-ROM), 2 Pages, 2004/10

Micro PIXE, which is installed in a single end accelerator in JAERI, was used for quantitative analysis of boron and gadolinium distribution in a cell level. The micro beam of 1 m diameter is possible to observe the distribution. In the adjustment procedure of the sample, first is a fix of mylar film by using a glass ring and a bite ring of 2cm diameter. Next the 9L cells were scattered on the washed film, and is cultivated on 37 $^{circ}$ C in medium until they form the mono-layer. After the Gd-BOPTA was added, it incubates for the 24-72 hour on 37 $^{circ}$ C. The film is washed in the THAM liquid, and is directly put on liquid nitrogen. A vacuum drying for 24 hours is conducted in order to fix a film on holder. It is important to uniformly fix the cell in distribution analysis in the cell using Micro PIXE. In recent result, it became possible that the distribution of P, S, Gd, etc. was analyzed. But we could not distinguish whether K and Gd exist in the cell or whether it exists around the cell. It was indicated that these elements was leaked by the reason of cell breaking or other on the cytoplasm.

Journal Articles

Neutron-skin thickness in neutron-rich isotopes

Krasznahorkay, A.*; Akimune, Hidetoshi*; Van den Berg, A. M.*; Blasi, N.*; Brandenburg. S.*; Csatls, M.*; Fujiwara, Mamoru; Gulys, J.*; Harakeh, M. N.*; Hunyadi, M.*; et al.

Nuclear Physics A, 731, p.224 - 234, 2004/02

https://doi.org/10.1016/j.nuclphysa.2003.11.034

Times Cited Count：75 Percentile：94.25(Physics, Nuclear)

no abstracts in English

Journal Articles

Correlation of crystal structures with electric field gradients in the fluorite- and pyrochlore-type compounds in the Gd $_{2}$ O $_{3}$ -ZrO $_{2}$ system

Wang, J.*; Otobe, Haruyoshi; Nakamura, Akio; Takeda, Masuo*

Journal of Solid State Chemistry, 176(1), p.105 - 110, 2003/11

https://doi.org/10.1016/S0022-4596(03)00353-0

Times Cited Count：14 Percentile：43.66(Chemistry, Inorganic & Nuclear)

no abstracts in English

Journal Articles

Structural properties of the fluorite- and pyrochlore-type compounds in the Gd $_{2}$ O $_{3}$ -ZrO $_{2}$ system xGdO $_{1.5}$ -(1-x)ZrO $_{2}$ with 0.18 x 0.62

Wang, J.*; Nakamura, Akio; Takeda, Masuo*

Solid State Ionics, 164(3-4), p.185 - 191, 2003/11

https://doi.org/10.1016/j.ssi.2003.09.003

Times Cited Count：36 Percentile：79.79(Chemistry, Physical)

no abstracts in English

Journal Articles

-ray spectroscopy for neutron-rich A160-170 nuclei; The $beta^{-}$ decay of $^{159}$ Pm, $^{160-162}$ Sm, $^{162}$ Eu, $^{164-166}$ Gd, and $^{166-168}$ Tb

Asai, Masato; Ichikawa, Shinichi; Tsukada, Kazuaki; Osa, Akihiko; Nishinaka, Ichiro; Nagame, Yuichiro; Kojima, Yasuaki*; Shibata, Michihiro*

Fission and Properties of Neutron-Rich Nuclei; Proceedings of 3rd International Conference, p.227 - 232, 2003/10

Structure of neutron-rich A160-170 nuclei produced in the proton-induced fission has been studied through -ray spectroscopy using an on-line isotope separator. $beta^{-}$ decays of $^{159}$ Pm, $^{161,162}$ Sm, and $^{165,166}$ Gd have been observed for the first time, and their half-lives were determined. Excited states of their daughter nuclei were revealed. rays following the $beta^{-}$ decay of $^{162}$ Eu and $^{164}$ Gd have been also observed. The results suggest that the ground state of $^{162}$ Eu would have a spin 5 or 6.

Journal Articles

Finding evolutionary relations beyond superfamilies; Fold-based superfamilies

Matsuda, Keiko*; Nishioka, Takaaki*; Kinoshita, Kengo*; Kawabata, Takeshi*; Go, Nobuhiro

Protein Science, 12(10), p.2239 - 2251, 2003/10

https://doi.org/10.1110/ps.0383603

Times Cited Count：10 Percentile：16.75(Biochemistry & Molecular Biology)

no abstracts in English

Journal Articles

Electric-dipole transition probabilities between yrast bands in $^{157}$ Gd

Hayakawa, Takehito; Toh, Yosuke; Oshima, Masumi; Matsuda, Makoto; Hatsukawa, Yuichi; Shinohara, Nobuo; Iimura, Hideki; Shizuma, Toshiyuki; Zhang, Y.*; Sugawara, Masahiko*; et al.

Physics Letters B, 551(1-2), p.79 - 85, 2003/01

https://doi.org/10.1016/S0370-2693(02)02982-9

Times Cited Count：11 Percentile：57.41(Astronomy & Astrophysics)

no abstracts in English

Journal Articles

Economic effect of fusion in energy market; Economic impact of fusion deployment in energy market

Konishi, Satoshi; Tokimatsu, Koji*

Purazuma, Kaku Yugo Gakkai-Shi, 78(11), p.1192 - 1198, 2002/11

https://doi.org/10.1585/jspf.78.1192

no abstracts in English

Journal Articles

An Economic index regarding market creation of products obtained from utilization of radiation and nuclear energy, 4; Comparison between Japan and U. S. A.

Yanagisawa, Kazuaki; Kume, Tamikazu; Makuuchi, Keizo; Tagawa, Seiichi*; Chino, Mitsuo*; Inoue, Tomio*; Takehisa, Masaaki*; Hagiwara, Miyuki*; Shimizu, Masahiko*

Journal of Nuclear Science and Technology, 39(10), p.1120 - 1124, 2002/10

https://doi.org/10.3327/jnst.39.1120

Times Cited Count：3 Percentile：22.58(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Economic scale of utilization of radiation, 2; Agriculture: Comparison between Japan and U. S. A.

Kume, Tamikazu; Amano, Etsuo*; Nakanishi, Tomoko*; Chino, Mitsuo*

Journal of Nuclear Science and Technology, 39(10), p.1106 - 1113, 2002/10

https://doi.org/10.3327/jnst.39.1106

Times Cited Count：4 Percentile：28.58(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Economic scale of utilization of radiation, 3; Medicine: Comparison between Japan and the U. S. A.

Inoue, Tomio*; Hayakawa, Kazushige*; Shiotari, Harutaka*; Takada, Eiichi*; Torikoshi, Masami*; Nagasawa, Kiyoshi*; Hagiwara, Kazuo*; Yanagisawa, Kazuaki

Journal of Nuclear Science and Technology, 39(10), p.1114 - 1119, 2002/10

https://doi.org/10.3327/jnst.39.1114

Times Cited Count：4 Percentile：28.58(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Economic scale of utilization of radiation, 1; Industry: Comparison between Japan and the U. S. A.

Makuuchi, Keizo; Tagawa, Seiichi*; Kashiwagi, Masayuki*; Kamada, Toshimitsu*; Sekiguchi, Masayuki*; Hosobuchi, Kazunari*; Tominaga, Hiroshi*; Ooka, Norikazu

Journal of Nuclear Science and Technology, 39(9), p.1002 - 1007, 2002/09

https://doi.org/10.3327/jnst.39.1002

Times Cited Count：6 Percentile：38.77(Nuclear Science & Technology)

no abstracts in English

Journal Articles