Zobrazeno 1 - 10 of 11 pro vyhledávání: '"Naohiro Kurosawa"'
1
Parameter search of geometric-progression formula for gamma-ray isotropic point source buildup factors up to depths of 100 mfp, including contribution of secondary radiations
Autor: Yoshiko Harima, Naohiro Kurosawa, Yukio Sakamoto
Publikováno v: Progress in Nuclear Science and Technology. 4:548-552
The form of K(E,X) in the Geometrical Progression (G-P) fitting function for 28 single-material gamma-ray buildup factors was improved to accurately approximate for deep penetration up to 100 mean free paths (mfp). The reference data were generated w
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6128ce1d5c47af3f8c0c72dad6034115
https://doi.org/10.15669/pnst.4.548
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2
Data Library and Four-Parameter Empirical Formula for the Response Functions for Gamma-Ray Skyshine Dose
Autor: Yoshiko Harima, Hideo Hirayama, Naohiro Kurosawa, Yukio Sakamoto, Makoto Nemoto
Publikováno v: Nuclear Technology. 168:901-905
Line-beam response function (LBRF) and conical-beam response function (CBRF) data for gamma-ray skyshine are generated using the EGS4 code in an arbitrary geometry for energies ranging from 0.1 to 10 MeV at all the emitted angles up to a distance of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::21162110e4cc1c1d8f127651a6f5f0ca
https://doi.org/10.13182/nt09-a9325
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3
Improvement of the Geometric-Progression Formula for Approximating Gamma-Ray Buildup Factors Up to Depths of 100 mfp
Autor: Yoshiko Harima, Naohiro Kurosawa, Akinao Shimizu, Yukio Sakamoto
Publikováno v: Nuclear Technology. 168:861-866
The geometric-progression (G-P) formula can accurately reproduce buildup factor data up to depths of 40 mean free paths (mfp) within a few percent. This formula was improved to apply to depths up to 100 mfp, using the buildup factor data of Shimizu e
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0f2b1f20d1060ec1684f7f7336627a7a
https://doi.org/10.13182/nt09-a9319
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4
REIDAC—A Software Package for Retrospective Dose Assessment in Internal Contamination with Radionuclides
Autor: Naohiro Kurosawa, Yuji Yamada, Takumaro Momose, Makoto Akashi, Kumiko Fukutsu, Koji Takasaki, Kimio Ito, Shinji Hato, Osamu Kurihara, Chie Takada, Mikihiro Oeda, Hiroshi Ikeda, Katsuta Kanai
Publikováno v: Journal of Nuclear Science and Technology. 44:1337-1346
For cases of internal contamination with radionuclides, it is necessary to perform an internal dose assessment to facilitate radiation protection. For this purpose, the ICRP has supplied the dose coefficients and the retention and excretion rates for
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bbd7c2f36d88a51f57f283f6a5da6612
https://doi.org/10.1080/18811248.2007.9711380
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6
Development of Dose Assessment Code for Accidental Tritium Releases-ACUTRI
Autor: Naohiro Kurosawa, Hiroshi Noguchi, Sumi Yokoyama
Publikováno v: Japanese Journal of Health Physics. 40:376-384
A computer code named ACUTRI has been developed to assess tritium doses due to inhalation to the general public. The ACUTRI code can calculate the radiological impact of tritium gas (HT) and tritiated water (HTO) released accidentally to the atmosphe
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::341d94da796a3f4e6d46cc90f99a7335
https://doi.org/10.5453/jhps.40.376
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7
Validity of the Four-Parameter Empirical Formula in Approximating the Response Functions for Gamma-ray, Neutron, and Secondary Gamma-ray Skyshine Analyses
Autor: Katsumi Hayashi, Nobuo Sasamoto, Yoshiko Harima, Fumihiro Masukawa, Hiroshi Nakashima, Hiroyuki Handa, Naohiro Kurosawa, Ryuichi Tayama, Makoto Nemoto, Teruo Abe, Yukio Sakamoto, Hideo Hirayama
Publikováno v: Journal of Nuclear Science and Technology. 40:569-578
A four-parameter approximating formula, R=A e a x b f(x), accurately represents the skyshine line beam response function (LBRF) as a function of the distance (x) of the source-to-detector separation. Here, A is a constant for a given source energy an
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::06aa8109ef5feb5ddde99276d95c782a
https://doi.org/10.1080/18811248.2003.9715393
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8
An Improved Approximation Formula of Gamma-Ray Buildup Factors for a Point Isotropic Source in Two-Layer Shields
Autor: Yukio Sakamoto, Hideo Hirayama, Yoshiko Harima, Naohiro Kurosawa
Publikováno v: Journal of Nuclear Science and Technology. 37:488-492
An approximation formula of buildup factor for two-layer shields proposed previously was improved to fitting to the newly calculated buildup factors for point isotropic source gamma-rays of 0.1, 0.3, 0.6, 1,3,6 and 10 MeV penetrating two-layer shield
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::03489ec52f2d080ec5e45231baa908e3
https://doi.org/10.1080/00223131.2000.10874934
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9
SHINE-III : Simple Code for Skyshine Dose Calculation up to 3GeV Neutrons
Autor: Naohiro Kurosawa, Katsumi Hayashi, Hiroyuki Handa, Teruo Abe, Yukio Sakamoto, Nobuo Sasamoto, Hiroshi Nakashima, Toshihisa Tsukiyama, Koubun Yamada, Ryuichi Tayama
Publikováno v: Journal of Nuclear Science and Technology. 37:640-644
Skyshine dose at site boundary is considered as one of the most fundamental issues to get approval of constructing nuclear installations. Skyshine conical beam response functions (CBRF) for high energy neutrons up to 3GeV are obtained using NMTC-JAER
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2b8e48aa4b3678dcceea0d55ac30c1a3
https://doi.org/10.1080/00223131.2000.10874967
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