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Journal Articles

Measurements of neutronic characteristics of rectangular and cylindrical coupled hydrogen moderators

Kai, Tetsuya; Kamiyama, Takashi*; Hiraga, Fujio*; Oi, Motoki; Hirota, Katsuya*; Kiyanagi, Yoshiaki*

Journal of Nuclear Science and Technology, 55(3), p.283 - 289, 2018/03

 Percentile:100(Nuclear Science & Technology)

JAEA Reports

Program POD-P; A Computer code to calculate cross sections for neutron-induced preequilibrium nuclear reactions

Kunieda, Satoshi; Ichihara, Akira

JAERI-Data/Code 2005-005, 33 Pages, 2005/09

JAERI-Data-Code-2005-005.pdf:1.5MB

The computer code, POD-P, was developed to calculate energy spectra and angular distributions of emitted particles for the neutron-induced preequiliblium nuclear reactions. The energy-differential cross sections are computed with the classical one-component exciton model for the nucleon and composite-particle emissions. Along with this, the semi-empirical exciton models are also used for the composite-particle emissions. The double-differential cross sections are derived from those model calculations plus the angular-distribution systematics. The computational method and explanation of input parameters are given with some output examples.

Journal Articles

Development of neutron-monitor detector using liquid organic scintillator coupled with $$^{6}$$Li+ZnS(Ag) sheet

Sato, Tatsuhiko; Endo, Akira; Yamaguchi, Yasuhiro; Takahashi, Fumiaki

Radiation Protection Dosimetry, 110(1-4), p.255 - 261, 2004/09

 Times Cited Count:8 Percentile:45.52(Environmental Sciences)

For monitoring of neutron doses in high-energy accelerator facilities, we have developed a neutron-monitor detector applicable to energies from the thermal energy to 100 MeV. The detector is composed of a cylindrical (12.7 cm in diameter and 12.7 cm in length) liquid organic scintillator BC501A covered with $$^{6}$$Li+ZnS(Ag) sheets. Characteristics of this phoswitch-type detector were studied experimentally in moderated neutron fields of $$^{241}$$Am-Be and $$^{252}$$Cf sources, and in quasi-monoenergetic neutron fields of 40 and 70 MeV. It was found from the experiments that the detector is enough sensitive to both thermal and fast neutrons, and has an excellent property of pulse-shape discrimination between them. We concluded, therefore, that the detector can be used for monitoring of neutron doses over a wide energy range from the thermal to 100 MeV.

Journal Articles

Development of neutron-monitor detectors applicable to energies from thermal to 100MeV

Endo, Akira; Kim, E.; Yamaguchi, Yasuhiro; Sato, Tatsuhiko; Yoshizawa, Michio; Tanaka, Susumu; Nakamura, Takashi; Rasolonjatovo, A. H. D.*

Journal of Nuclear Science and Technology, 41(Suppl.4), p.510 - 513, 2004/03

no abstracts in English

Journal Articles

Vortex dissipation and level dynamics for the layered superconductors with impurities

Fujita, Ayumi

Physical Review B, 64(6), p.064504_1 - 064504_6, 2001/08

 Percentile:100(Materials Science, Multidisciplinary)

We study parametric level statistics of the discretized excitation spectra inside a moving vortex core in layered superconductors with impurities. The universal conductivity is evaluated numerically for the various values of rescaled vortex velocities $$kappa$$ from the clean case to the dirty limit case. The random matrix theoretical prediction is verified numerically in the large $$kappa$$ regime. On the contrary in the low velocity regime, we observe $$sigma_{xx} propto kappa^{2/3}$$which is consistent with the theoretical result for the super-clean case, where the energy dissipation is due to the Landau-Zener transition which takes place at the points called ``avoided crossing''.

JAEA Reports

Neutron spectrum and flux of the cold neutron beam port (C2-3) in JRR-3M

Kawabata, Yuji*; Ebisawa, Toru*; Tasaki, Seiji*; Suzuki, Masatoshi; Soyama, Kazuhiko

JAERI-Research 2000-019, p.20 - 0, 2000/03

JAERI-Research-2000-019.pdf:0.83MB

no abstracts in English

JAEA Reports

Experimental data on polyethylene shield transmission of quasi-monoenergetic neutrons generated by 43- and 68-MeV protons via $$^{7}$$Li(p,n) reaction

Nakao, Noriaki*; Nakashima, Hiroshi; Nakao, Makoto*; Sakamoto, Yukio; Nakane, Yoshihiro; ; Tanaka, Shunichi; Nakamura, Takashi*

JAERI-Data/Code 98-013, 46 Pages, 1998/03

JAERI-Data-Code-98-013.pdf:2.14MB

no abstracts in English

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

A Response of an imaging plate to heavy ion beams and its LET effects

Abe, Ken*; Kojima, Takuji; *; *; *; *; Sakai, Takuro; *

Radiation Detectors and Their Uses, p.323 - 328, 1998/00

no abstracts in English

JAEA Reports

Effects of primary recoil (PKA) energy spectrum on radiation damage in FCC metals

Iwata, Tadao*; Iwase, Akihiro

JAERI-Research 97-073, 45 Pages, 1997/10

JAERI-Research-97-073.pdf:1.55MB

no abstracts in English

Journal Articles

Measurement of neutron energy spectrum below 10keV in an iron shield bombarded by deuterium-tritium neutrons and benchmark test of evaluated nuclear data from 14 MeV to 1 eV

Maekawa, Fujio; Oyama, Yukio

Nuclear Science and Engineering, 125(2), p.205 - 217, 1997/02

 Times Cited Count:3 Percentile:67.23(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Whole energy absorption spectrometer for decay heat measurement of fusion reactor materials and application for beta-ray spectrum measurement

Maekawa, Fujio; Ikeda, Yujiro

Proc. of Int. Conf. on Nucl. Data for Science and Technol., 59, p.1201 - 1205, 1997/00

no abstracts in English

JAEA Reports

Experiments on iron shield transmission of quasi-monoenergetic neutrons generated by 43- and 68-MeV protons via the $$^{7}$$Li(P,n) reaction

; Nakao, Noriaki*; Tanaka, Shunichi; Nakamura, Takashi*; Shin, Kazuo*; Tanaka, Susumu; Meigo, Shinichiro; Nakane, Yoshihiro; Takada, Hiroshi; Sakamoto, Yukio; et al.

JAERI-Data/Code 96-005, 46 Pages, 1996/03

JAERI-Data-Code-96-005.pdf:1.54MB

no abstracts in English

Journal Articles

Characteristics of a vaccum-type microcalorimeter for synchrotron-radiation measurements

; Nakane, Yoshihiro; Sakamoto, Yukio; Asano, Yoshihiro; Tanaka, Shunichi; Ban, Shuichi*; Namito, Yoshihito*; Hirayama, Hideo*; *

Nuclear Instruments and Methods in Physics Research A, 365, p.553 - 558, 1995/00

 Times Cited Count:2 Percentile:66.57

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

no abstracts in English

JAEA Reports

Journal Articles

A Thermal desorption study of the surface interaction between tritium and type 316 stainless steel

Hirabayashi, Takakuni; Saeki, Masakatsu; Tachikawa, Enzo

J.Nucl.Mater., 126, p.38 - 43, 1984/00

 Times Cited Count:36 Percentile:5.34

no abstracts in English

Journal Articles

Monte carlo colculation of source characteristics of FNS water cooled type tritium target

; ; ; ; ; ; *

Journal of Nuclear Science and Technology, 20(8), p.686 - 697, 1983/00

 Times Cited Count:5 Percentile:41.78(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Estimation method of fast neutron fluence in the JMTR

;

Nippon Genshiryoku Gakkai-Shi, 25(5), p.56 - 66, 1983/00

no abstracts in English

23 (Records 1-20 displayed on this page)