Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Yoshiko Harima"'
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
https://doi.org/10.15669/pnst.4.548
Publikováno v:
Journal of Nuclear Science and Technology. 48:1057-1068
A fast calculation method for gamma ray skyshine dose was developed. Four data libraries including anisotropy factors and buildup factors in the gamma ray transport calculation in air and the buildup flux energy spectrum and edge correction factor in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f821b6e24267e56adaf90095504e75d
https://doi.org/10.1080/18811248.2011.9711790
https://doi.org/10.1080/18811248.2011.9711790
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
https://doi.org/10.13182/nt09-a9325
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
https://doi.org/10.13182/nt09-a9319
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
https://doi.org/10.1080/18811248.2003.9715393
Autor:
Yoshiko Harima, Katsumi Hayashi, Ryuichi Tayama, Yukio Sakamoto, Osamu Sato, Yoshihisa Hayashida, Hideo Hirayama, Makoto Nemoto, Satoshi Ishikawa
Publikováno v:
Journal of Nuclear Science and Technology. 37:626-630
Three basic sets of data, i.e. air transport data and material transmission/reflection data, included in the SKYSHINE program have been improved using up-to-data and methods, and applied to skyshine dose calculations for a typical BWR turbine buildin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf9b8dc7efcc348cc9541f39848b0fc8
https://doi.org/10.1080/00223131.2000.10874964
https://doi.org/10.1080/00223131.2000.10874964
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
https://doi.org/10.1080/00223131.2000.10874934
Autor:
Yukio Sakamoto, Ryuichi Tayama, Yoshihisa Hayashida, Yoshiko Harima, Osamu Sato, Satoshi Ishikawa, Makoto Nemoto, Hideo Hirayama, Katsumi Hayashi
Publikováno v:
Journal of Nuclear Science and Technology. 37:616-620
The line-beam response functions (LBRFs) of a key component of a computationally simple gamma-ray skyshine analysis are generated using an electron-photon cascade Monte Carlo code EGS4. The LBRFs R(E0, Φ, x) are given with the air-kerma (Gy per phot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1268529fd2528fc90303881b594e37cd
https://doi.org/10.1080/00223131.2000.10874962
https://doi.org/10.1080/00223131.2000.10874962
Autor:
Yoshiko Harima
Publikováno v:
Radiation Physics and Chemistry. 41:631-672
The γ-ray buildup factor is a multiplicative factor which corrects the response to uncollided photons so as to include the contribution of the scattered photons. Buildup factors are important data implemented in point kernel codes for use in shield
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7019330076fffd4c42a8cc70dd5d6da
https://doi.org/10.1016/0969-806x(93)90317-n
https://doi.org/10.1016/0969-806x(93)90317-n
Autor:
Yoshiko Harima, Hideo Hirayama
Publikováno v:
Nuclear Science and Engineering. 113:367-378
Exposure buildup factors, energy spectra, and angular flux distribution for plane-normal incident and point isotropic source gamma rays of 0.1, 0.5, 1, 3, 6, and 10MeV penetrating two-layer water-lead and lead-water shields are calculated with the po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48831ab4ea3f0c3f141fff3112d9510b
https://doi.org/10.13182/nse92-52
https://doi.org/10.13182/nse92-52