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JAEA Reports

Determination of regional stress state for estimating local stress state (Contract research)

Mizuta, Yoshiaki*; Kaneko, Katsuhiko*; Matsuki, Koji*; Sugawara, Katsuhiko*; Sudo, Shigeaki*; Hirano, Toru; Tanno, Takeo; Matsui, Hiroya

JAEA-Research 2010-011, 35 Pages, 2010/06

JAEA-Research-2010-011.pdf:4.42MB

The best way to know the initial stress clearly is to measure it in the location where a tunnel will be excavated. However, it is difficult to measure a large number of the initial stresses, budgetary considerations notwithstanding, because of the large scale of underground structures like a radioactive waste disposal facility. Therefore we developed a method for determination of initial stress for arbitrary points from limited results of initial stress measurements. This report is a summary of the contract work about this development. At first, we made local scale numerical models of the Tono area. Using these models, we determined the regional stress state from limited initial stress measurements results. Then we applied the regional stress state to boundary conditions of other numerical models and estimated initial stress at arbitrary points. The result is an estimated initial stress that matched the original stress measurement results from the first analytical results.

Journal Articles

D-T neutron skyshine experiments and the MCNP analysis

Nishitani, Takeo; Ochiai, Kentaro; Yoshida, Shigeo*; Tanaka, Ryohei*; Wakisaka, Masashi*; Nakao, Makoto*; Sato, Satoshi; Yamauchi, Michinori*; Hori, Junichi; Wada, Masayuki*; et al.

Journal of Nuclear Science and Technology, 41(Suppl.4), p.58 - 61, 2004/03

no abstracts in English

Journal Articles

Measurement of radiation skyshine with D-T neutron source

Yoshida, Shigeo*; Nishitani, Takeo; Ochiai, Kentaro; Kaneko, Junichi*; Hori, Junichi; Sato, Satoshi; Yamauchi, Michinori*; Tanaka, Ryohei*; Nakao, Makoto*; Wada, Masayuki*; et al.

Fusion Engineering and Design, 69(1-4), p.637 - 641, 2003/09

 Times Cited Count:7 Percentile:51.57(Nuclear Science & Technology)

no abstracts in English

Journal Articles

D-T neutron skyshine experiments at JAERI/FNS

Nishitani, Takeo; Ochiai, Kentaro; Yoshida, Shigeo*; Tanaka, Ryohei*; Wakisaka, Masashi*; Nakao, Makoto*; Sato, Satoshi; Yamauchi, Michinori*; Hori, Junichi; Takahashi, Akito*; et al.

Purazuma, Kaku Yugo Gakkai-Shi, 79(3), p.282 - 289, 2003/03

no abstracts in English

Journal Articles

In situ transmissivity measurements of KU1 quartz in the UV range under 14 Mev neutron irradiation

Nishitani, Takeo; Sugie, Tatsuo; Kasai, Satoshi; Kaneko, Junichi*; Yamamoto, Shin

Journal of Nuclear Materials, 307-311(Part2), p.1264 - 1267, 2002/12

 Times Cited Count:23 Percentile:17.74

no abstracts in English

Journal Articles

Fusion power measurement based on $$^{16}$$O(n,p)$$^{16}$$N reaction in flowing water

Nishitani, Takeo; Uno, Yoshitomo; Kaneko, Junichi*; Ochiai, Kentaro; Maekawa, Fujio

Journal of Nuclear Science and Technology, 39(Suppl.2), p.1139 - 1142, 2002/08

no abstracts in English

Journal Articles

Absolute measurement of D-T neutron flux with a monitor using activation of flowing water

Uno, Yoshitomo; Kaneko, Junichi; Nishitani, Takeo; Maekawa, Fujio; Tanaka, Teruya; Shibata, S.*; Ikeda, Yujiro; Khripunov, V.*; Walker, C. I.*; Ebisawa, Katsuyuki*; et al.

Fusion Engineering and Design, 56-57, p.895 - 898, 2001/10

 Times Cited Count:3 Percentile:71.43(Nuclear Science & Technology)

no abstracts in English

JAEA Reports

Technical feasibility study for the D-T neutron monitor using activation of flowing water

Uno, Yoshitomo; Kaneko, Junichi; Nishitani, Takeo; Maekawa, Fujio; Tanaka, Teruya; Ikeda, Yujiro; Takeuchi, Hiroshi

JAERI-Research 2001-007, 42 Pages, 2001/03

JAERI-Research-2001-007.pdf:8.74MB

no abstracts in English

Journal Articles

Neutronics experiments for ITER at JAERI/FNS

Konno, Chikara; Maekawa, Fujio; Kasugai, Yoshimi; Uno, Yoshitomo; Kaneko, Junichi; Nishitani, Takeo; Wada, Masayuki*; Ikeda, Yujiro; Takeuchi, Hiroshi

Nuclear Fusion, 41(3), p.333 - 337, 2001/03

 Times Cited Count:3 Percentile:88.16(Physics, Fluids & Plasmas)

no abstracts in English

Journal Articles

Diamond radiation detector made of an nultrahigh-purity type IIa diamond crystal grown by high-pressure and high-temperature synthesis

Tanaka, Teruya; Kaneko, Junichi; Takeuchi, Daisuke*; Sumiya, Hitoshi*; Katagiri, Masaki; Nishitani, Takeo; Takeuchi, Hiroshi; Iida, Toshiyuki*; Okushi, Hideyo*

Review of Scientific Instruments, 72(2), p.1406 - 1410, 2001/02

 Times Cited Count:7 Percentile:54.55(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Technical feasibility study on a fusion power monitor based on activation of water flow

Kaneko, Junichi; Uno, Yoshitomo; Nishitani, Takeo; Maekawa, Fujio; Tanaka, Teruya; Shibata, Yasunari; Ikeda, Yujiro; Takeuchi, Hiroshi

Review of Scientific Instruments, 72(1), p.809 - 813, 2001/01

no abstracts in English

Journal Articles

Technical feasibility study in a fusion power monitor based on activation of water flow

Kaneko, Junichi; Uno, Yoshitomo; Nishitani, Takeo; Maekawa, Fujio; Tanaka, Teruya; Shibata, Yoshinari; Ikeda, Yujiro; Takeuchi, Hiroshi

Review of Scientific Instruments, 72(1), p.809 - 813, 2001/01

 Times Cited Count:8 Percentile:51.36(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Determination of metallic impurities in high-parity type IIa diamond grown by high-pressure and high-temperature synthesis using neutron activation analysis

Kaneko, Junichi; Yonezawa, Chushiro; Kasugai, Yoshimi; Sumiya, Hitoshi*; Nishitani, Takeo

Diamond and Related Materials, 9(12), p.2019 - 2023, 2000/12

 Times Cited Count:8 Percentile:54.04(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

High-temperature operation of a radiation detector made of a type IIa diamond single crystal synthesized by a HP/HT method

Tanimura, Yoshihiko; Kaneko, Junichi; Katagiri, Masaki; Ikeda, Yujiro; Nishitani, Takeo; Takeuchi, Hiroshi; Iida, Toshiyuki*

Nuclear Instruments and Methods in Physics Research A, 443(2-3), p.325 - 330, 2000/04

 Times Cited Count:30 Percentile:12.54(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Response function measurement of a synthetic diamond radiation detector for 14 MeV neutrons

Kaneko, Junichi; Ikeda, Yujiro; Nishitani, Takeo; Katagiri, Masaki

Review of Scientific Instruments, 70(1), p.1100 - 1103, 1999/01

 Times Cited Count:20 Percentile:23.06(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Development of a synthetic diamond radiation detector with a boron doped CVD diamond contact

Kaneko, Junichi; Katagiri, Masaki; Ikeda, Yujiro; Nishitani, Takeo

Nuclear Instruments and Methods in Physics Research A, 422, p.211 - 215, 1999/00

 Times Cited Count:24 Percentile:14.52

no abstracts in English

Journal Articles

Development of radiation detectors using synthetic diamond crystals

Kaneko, Junichi; Katagiri, Masaki; Ikeda, Yujiro; Nishitani, Takeo

Advanced Materials'98;Advanced Materials Research Utilizing Extreme Conditions, p.257 - 260, 1998/00

no abstracts in English

Journal Articles

Analysis on signals from synthetic diamond radiation detectors and suppression of a polarization phenomenon

Kaneko, Junichi; Katagiri, Masaki; Ikeda, Yujiro; Nishitani, Takeo

Radiation Detectors and Their Uses, p.259 - 263, 1998/00

no abstracts in English

Journal Articles

Fusion neutronic source deuterium-tritium neutron spectrum measurements using natural diamond detectors

A.V.Krasilnikov*; Kaneko, Junichi; Nishitani, Takeo; Maekawa, Fujio; *

Review of Scientific Instruments, 68(4), p.1720 - 1724, 1997/04

 Times Cited Count:36 Percentile:10.87(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Neutron spectrometers for ITER

Nishitani, Takeo; Iguchi, Tetsuo*; *; Kaneko, Junichi; Kasai, Satoshi; Matoba, Toru

Proc., Workshop on Diagnostics for Experimental Thermonuclear Fusion Reactors, 0, p.425 - 434, 1996/00

no abstracts in English

26 (Records 1-20 displayed on this page)