Neutronics integral experiments of simulated fusion reactor blanket with various beryllium configurations using Deuterium-tritium neutrons

Konno, Chikara; Oyama, Yukio; Ikeda, Yujiro; ; ; Kosako, Kazuaki*; Maekawa, Hiroshi; Nakakawa, Masayuki; Mori, Takamasa; Nakamura, Tomoo; et al.

Fusion Technology, 28(2), p.273 - 295, 1995/09

no abstracts in English

Neutronics integral experiments of lithium-oxide fusion blanket with heterogeneous configurations using deuterium-tritium neutrons

Oyama, Yukio; Konno, Chikara; Ikeda, Yujiro; ; ; Kosako, Kazuaki*; Maekawa, Hiroshi; Nakakawa, Masayuki; Mori, Takamasa; Nakamura, Tomoo; et al.

Fusion Technology, 28(1), p.216 - 235, 1995/08

no abstracts in English

Tritium production-rate measurement techniques developed at FNS/JAERI

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

Fusion Technology, 26, p.1086 - 1091, 1994/11

no abstracts in English

Phase IIC experiments of the JAERI/USDOE collaborative program on fusion blanket neutronics; Experiments and analysis of the heterogeneous fusion blankets, Volume I: Experimental results

Oyama, Yukio; Konno, Chikara; Ikeda, Yujiro; Yamaguchi, Seiya*; Tsuda, Koichi*; Maekawa, Hiroshi; *; Kosako, Kazuaki*; Nakakawa, Masayuki; Mori, Takamasa; et al.

JAERI-M 92-182, 151 Pages, 1992/12

JAERI-M-92-182.pdf:4.31MB

no abstracts in English

Phase IIA and IIB experiments of JAERI/US DOE collaborative program on fusion blanket neutronics; Neutronics experiment on beryllium configuration in a full-coverage blanket geometry

Oyama, Yukio; ; ; Ikeda, Yujiro; Konno, Chikara; Maekawa, Hiroshi; Nakamura, Tomoo; K.G.Porges*; Bennett, E. F.*; R.F.Mattas*

JAERI-M 89-215, 208 Pages, 1989/12

JAERI-M-89-215.pdf:19.1MB

no abstracts in English

Experimental results for phase II of the JAERI/USDOE collaborative program on fusion blanket neutronics

Oyama, Yukio; ; ; Ikeda, Yujiro; Konno, Chikara; Maekawa, Hiroshi; Nakamura, Tomoo; K.G.Porges*; Bennett, E. F.*

Fusion Engineering and Design, 9, p.303 - 313, 1989/00

https://doi.org/10.1016/S0920-3796(89)80050-X

no abstracts in English

Benchmark experiments on a 60 cm-thick graphite cylindrical assembly

Maekawa, Hiroshi; Ikeda, Yujiro; Oyama, Yukio; ; ; *; Kosako, Kazuaki*; *; Nakamura, Tomoo

JAERI-M 88-034, 65 Pages, 1988/02

JAERI-M-88-034.pdf:2.04MB

no abstracts in English

Fusion Blanket Benchmark Experiments on a 60cm-Thick Lithium-Oxide Cylindrical Assembly

; ; ; ; ; ; ; ;

JAERI-M 86-182, 78 Pages, 1986/12

JAERI-M-86-182.pdf:2.31MB

no abstracts in English

Development of a spherical NE213 spectrometer with 14 mm diameter

; ; ; ;

JAERI-M 84-124, 43 Pages, 1984/07

JAERI-M-84-124.pdf:1.58MB

A 14 mm diameter spherical NE213 spectrometer has been developed for applying to fusion neutronics experiments. It is used to measure the fast neutron spectra in assemblies of various materials irradiated with 14 MeV neutrons. The characteristics of neutron gamma-ray discrimination was investigated, and it was found that the wall-escape of recoil protons produced in the detector should be treated carefully in the case of a small size detector such as this one. Response matrix for spectrum unfolding has been calculated by a Monte Carlo code. Calculated response for 14 MeV neutrons agreed well with measured one. The present spectrometer was applied to in-system neutrons spectrum measurements in a lithium-oxide assembly bombarded by D-T neutrons. The spectra obtained by unfolding were compared with the results calculated by the neutron transport code DOT3.5, and with reaction rates measured by fission counters and activation detectors. Consequently it has been demonstrated that the spectrometer is very useful for fusion neutronics experiments.