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Journal Articles

Behavior of Sm in the boron cage of Sm-doped $$R$$B$$_{6}$$ ($$R$$ =Yb, La) observed by multiple-wavelength neutron holography

Uechi, Shoichi*; Oyama, Kenji*; Fukumoto, Yohei*; Kanazawa, Yuki*; Happo, Naohisa*; Harada, Masahide; Inamura, Yasuhiro; Oikawa, Kenichi; Matsuhra, Wataru*; Iga, Fumitoshi*; et al.

Physical Review B, 102(5), p.054104_1 - 054104_10, 2020/08

 Times Cited Count:7 Percentile:45.15(Materials Science, Multidisciplinary)

Journal Articles

Operation of the electron accelerators and $$gamma$$-ray irradiation facilitis

Haruyama, Yasuyuki; Kaneko, Hirohisa; Hanaya, Hiroaki; Yamagata, Ryohei; Seito, Hajime; Kanazawa, Takao; Yamaguchi, Toshiyuki*; Yagi, Norihiko*; Takagi, Masahide*; Hirai, Toshiyuki*; et al.

JAEA-Review 2009-041, JAEA Takasaki Annual Report 2008, P. 176, 2009/12

no abstracts in English

Journal Articles

Utilization of the electron accelerator and $$gamma$$-ray irradiation facilities

Kaneko, Hirohisa; Haruyama, Yasuyuki; Hanaya, Hiroaki; Yamagata, Ryohei; Seito, Hajime; Kanazawa, Takao; Yamaguchi, Toshiyuki*; Yagi, Norihiko*; Takagi, Masahide*; Hirai, Toshiyuki*; et al.

JAEA-Review 2009-041, JAEA Takasaki Annual Report 2008, P. 177, 2009/12

no abstracts in English

JAEA Reports

Technical data on electron beam and $$gamma$$-ray irradiation facilities; Electron accelerator and $$^{60}$$Co irradiation facility

Seito, Hajime; Haruyama, Yasuyuki; Hanaya, Hiroaki; Yamagata, Ryohei; Kanazawa, Takao; Kaneko, Hirohisa; Kojima, Takuji

JAEA-Technology 2008-071, 29 Pages, 2008/11

[This article is unavailable to download the full text due to various reasons.]This report outlines useful data for users in electron beam and $$^{60}$$Co $$gamma$$-ray irradiation facilities at JAEA, TARRI. The contents include fundamental data such as characteristics of irradiation field, mechanism of irradiator and dose measurement in irradiated materials.

Journal Articles

Operation of the electron accelerators and $$gamma$$-ray irradiation facilities

Kaneko, Hirohisa; Haruyama, Yasuyuki; Haneda, Noriyuki; Hanaya, Hiroaki; Yamagata, Ryohei; Seito, Hajime; Kanazawa, Takao; Kojima, Takuji; Yamaguchi, Toshiyuki*; Yagi, Norihiko*; et al.

JAEA-Review 2008-055, JAEA Takasaki Annual Report 2007, P. 192, 2008/11

The accelerator served mainly for graft-polymerization for new material development, radiation effect study on semiconductors and various experiments of visiting users. The annual operation time of the electron accelerator is 706.3h. The Co-60 $$gamma$$-ray irradiation facilities consist of three buildings (8 rooms) and cover a wide dose-rate range from 0.04 Gy/h to 20 kGy/h with eight irradiation cells. The annual operation time for the first, second cobalt irradiation facilities and food irradiation facility is 23,433h, 9,010h and 10,631h.

Journal Articles

Utilization of the electron accelerator and $$gamma$$-ray irradiation facilities

Kaneko, Hirohisa; Haruyama, Yasuyuki; Haneda, Noriyuki; Hanaya, Hiroaki; Yamagata, Ryohei; Seito, Hajime; Kanazawa, Takao; Kojima, Takuji; Yamaguchi, Toshiyuki*; Yagi, Norihiko*; et al.

JAEA-Review 2008-055, JAEA Takasaki Annual Report 2007, P. 193, 2008/11

An electron accelerator and three $$gamma$$-ray irradiation facilities were operated for various research subjects as operation plan in FY 2007 without serious trouble. The number of research subjects for the electron accelerator and $$gamma$$-ray irradiation facilities is 505 and 1174, respectively. The number of experiment subject at the electron accelerator increased in the research fields of environment and nuclear facilities, and decreased in the field of heat resist. Also, the number at $$gamma$$-ray irradiation facilities increased in the field of resource & bio-technology, and decreased in the field of nuclear facilities.

Journal Articles

Operation of the electron accelerators and $$gamma$$-ray irradiation facilities

Kaneko, Hirohisa; Hanaya, Hiroaki; Haneda, Noriyuki; Yamagata, Ryohei; Seito, Hajime; Kanazawa, Takao; Kojima, Takuji; Koyama, Shigeru*; Yamaguchi, Toshiyuki*; Kawashima, Ikuo*; et al.

JAEA-Review 2007-060, JAEA Takasaki Annual Report 2006, P. 209, 2008/03

The accelerator served mainly for graft-polymerization for new material development, radiation effect study on semiconductors, and various experiments of outside users. The annual operation time for the electron accelerator is 597.4h(517h for vertical beams, 80.4h for horizontal beams) The Co-60 $$gamma$$-ray irradiation facilities consist of three buildings (8 rooms) and cover a wide dose-rate range from 0.04Gy/h to 20kGy/h with eight irradiation cells. The annual operation time for the cobalt first, second irradiation facilities and food irradiation facility is 20,844 h, 6,335 h and 3,150 h.

Journal Articles

Utilization of the electron accelerator and $$gamma$$-ray irradiation facilities

Kojima, Takuji; Kaneko, Hirohisa; Haneda, Noriyuki; Hanaya, Hiroaki; Yamagata, Ryohei; Seito, Hajime; Kanazawa, Takao; Koyama, Shigeru*; Yamaguchi, Toshiyuki*; Kawashima, Ikuo*; et al.

JAEA-Review 2007-060, JAEA Takasaki Annual Report 2006, P. 208, 2008/03

An electron accelerator and three $$gamma$$ ray irradiation facilities were operated for various research subjects as operation plan in FY 2006 without serious trouble. The number of research subjects for the No.1 accelerator, the Cobalt No.1 facility, the Cobalt No.2 facility, and the Food irradiation facility, is 544, 159, 622, and 357, respectively.

Journal Articles

Operation of the electron accelerators

Kaneko, Hirohisa; Hanaya, Hiroaki; Haneda, Noriyuki; Yamagata, Ryohei; Seito, Hajime; Kanazawa, Takao; Yamaguchi, Toshiyuki*; Kawashima, Ikuo*; Yagi, Norihiko*

JAEA-Review 2006-042, JAEA Takasaki Annual Report 2005, P. 201, 2007/02

The No.1 accelerator has been smoothly on service since established in January 1986. The No.1 accelerator renewed both the high frequency inverter power supply in January 2000 and the accelerator control system in June 2001. The No.2 accelerator operation was terminated and the extended operation of the No.1 accelerator was started having one additional consignment operator at April 2005.

Journal Articles

Utilization of the electron accelerator and $$gamma$$-ray irradiation facilities

Kanazawa, Takao; Kaneko, Hirohisa; Haneda, Noriyuki; Hanaya, Hiroaki; Yamagata, Ryohei; Seito, Hajime; Koyama, Shigeru*; Yamaguchi, Toshiyuki*; Kawashima, Ikuo*; Yagi, Norihiko*; et al.

JAEA-Review 2006-042, JAEA Takasaki Annual Report 2005, P. 200, 2007/02

An electron accelerator and three $$gamma$$ ray irradiation facilities were operated without any trouble for various experiments in FY 2005. The operation of No.2 accelerator was terminated at April 2005. The number of experimental subjects was 544 for the No.1 accelerator, 287 for the Cobalt No.1 facility, 630 for the Cobalt No.2 facility, and 339 for the Food irradiation facility.

Journal Articles

Operation of the Co-60 $$gamma$$-ray irradiation facilities

Haneda, Noriyuki; Yamagata, Ryohei; Kaneko, Hirohisa; Hanaya, Hiroaki; Seito, Hajime; Kanazawa, Takao; Koyama, Shigeru*; Kawashima, Ikuo*; Yagi, Norihiko*; Takagi, Masahide*; et al.

JAEA-Review 2006-042, JAEA Takasaki Annual Report 2005, P. 202, 2007/02

The Co-60 $$gamma$$-ray irradiation facilities consist of three buildings and cover a wide dose-rate range from 0.04Gy/h to 20kGy/h with eight irradiation cells. All the facilities have been operated without serious trouble and served for the following various R&D's of JAEA and out side users such as development of new materials, radiation resistance test, radiation biotechnology.

Oral presentation

Reverse vertical seismic profiling using the research gallery in granite

Yamada, Nobuto; Matsuoka, Toshiyuki; Ishigaki, Koichi*; Kanazawa, Yohei*; Tokuyasu, Shingo*; Nakahara, Junichi*

no journal, , 

Evaluation on the geological discontinuity is one of the important issues for safety assessment of high-level radioactive waste disposal. A Reverse Vertical Seismic Profiling (RVSP) investigation using blasting vibration for excavation of the research gallery and survey lines placed in the -300m research galleries of the Mizunami Underground Research Laboratory has been carried out to obtain three-dimensional information on the geological discontinuity such as faults and fracture zones in granite during the research galleries excavation works. In this study, results of RVSP are compared with existing information such as sonic logging to estimate spatial distribution of faults and fracture zones, and the applicability of this method to estimate geological structure in the granite is discussed.

12 (Records 1-12 displayed on this page)
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