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Journal Articles

Dynamics of ion internal transport barrier in LHD heliotron and JT-60U tokamak plasmas

Ida, Katsumi*; Sakamoto, Yoshiteru; Yoshinuma, Mikiro*; Takenaga, Hidenobu; Nagaoka, Kenichi*; Hayashi, Nobuhiko; Oyama, Naoyuki; Osakabe, Masaki*; Yokoyama, Masayuki*; Funaba, Hisamichi*; et al.

Nuclear Fusion, 49(9), p.095024_1 - 095024_9, 2009/09

 Times Cited Count:26 Percentile:72.4(Physics, Fluids & Plasmas)

Dynamics of ion internal transport barrier (ITB) formation and impurity transport both in the Large Helical Device (LHD) heliotron and JT-60U tokamak are described. Significant differences between heliotron and tokamak plasmas are observed. The location of the ITB moves outward during the ITB formation regardless of the sign of magnetic shear in JT-60U and the ITB becomes more localized in the plasma with negative magnetic shear. In LHD, the low Te/Ti ratio ($$<$$ 1) of the target plasma for the high power heating is found to be necessary condition to achieve the ITB plasma and the ITB location tends to expand outward or inward depending on the condition of the target plasmas. Associated with the formation of ITB, the carbon density tends to be peaked due to inward convection in JT-60U, while the carbon density becomes hollow due to outward convection in LHD. The outward convection observed in LHD contradicts the prediction by neoclassical theory.

Journal Articles

Assessment of calculation model for annular core on the HTTR

Nojiri, Naoki; Handa, Yuichi*; Shimakawa, Satoshi; Goto, Minoru; Kaneko, Yoshihiko*

Nihon Genshiryoku Gakkai Wabun Rombunshi, 5(3), p.241 - 250, 2006/09

It was shown from the annular core experiment of the HTTR that the discrepancy of excess reactivity between experiment and analysis reached about 3 % Dk/k at maximum. Sensitivity analysis for the annular core of the HTTR was performed to improve the discrepancy. The SRAC code system was used for the core analysis. As the results of the analysis, it was found clearly that the multiplication factor of the annular core is affected by (1) mesh interval in the core diffusion calculation, (2) mesh structure of graphite region in fuel lattice cell and (3) the Benoist's anisotropic diffusion coefficients. The significantly large discrepancy previously reported was reduced down to about 1 % Dk/k by the revised annular core model.

Journal Articles

Magnetic properties of U$$_2$$RhGa$$_8$$ and U$$_2$$FeGa$$_8$$

Ikeda, Shugo; Okubo, Tomoyuki*; Inada, Yoshihiko*; Tokiwa, Yoshifumi; Kaneko, Koji; Matsuda, Tatsuma; Yamamoto, Etsuji; Haga, Yoshinori; Onuki, Yoshichika

Journal of Physics; Condensed Matter, 15(28), p.S2015 - S2018, 2003/07

 Times Cited Count:6 Percentile:36.6(Physics, Condensed Matter)

no abstracts in English

Journal Articles

Application of revised procedure on determining large excess reactivity of operating reactor; Fuel addition method

Nagao, Yoshiharu; Hosoya, Toshiaki; Kaneko, Yoshihiko*

Nihon Genshiryoku Gakkai Wabun Rombunshi, 1(2), p.153 - 163, 2002/06

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:32 Percentile:88.17(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Revised procedure for determining large excess reactivity of reactors

Kaneko, Yoshihiko*; Nagao, Yoshiharu; Shimakawa, Satoshi

Journal of Nuclear Science and Technology, 36(11), p.988 - 995, 1999/11

 Times Cited Count:0 Percentile:0.01(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Two proposals for determination of large reactivity of reactor

Kaneko, Yoshihiko*; Nagao, Yoshiharu; Yamane, Tsuyoshi; Takeuchi, Mitsuo

JAERI-Conf 99-006, p.316 - 321, 1999/08

no abstracts in English

Journal Articles

Evaluation of F-factor for delayed integral counting method

Yamane, Tsuyoshi; Takeuchi, Mitsuo; Shimakawa, Satoshi; Kaneko, Yoshihiko*

Nihon Genshiryoku Gakkai-Shi, 40(2), p.122 - 123, 1998/00

 Times Cited Count:0 Percentile:0.01(Nuclear Science & Technology)

no abstracts in English

JAEA Reports

A Proposal of revised method for determination of large positive reactivity

Kaneko, Yoshihiko*; Shimakawa, Satoshi; Nagao, Yoshiharu; Yamashita, Kiyonobu; ; Yamane, Tsuyoshi

JAERI-Research 97-003, 70 Pages, 1997/02

JAERI-Research-97-003.pdf:1.79MB

no abstracts in English

Journal Articles

Experimental verification and analysis of neutron streaming effect through void holes for control rod insertion in HTTR

Akino, Fujiyoshi; Takeuchi, Motoyoshi; Ono, Toshihiko; Kaneko, Yoshihiko

Journal of Nuclear Science and Technology, 34(2), p.185 - 192, 1997/02

 Times Cited Count:0 Percentile:0.01(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Present status of space nuclear reactor

Kaneko, Yoshihiko*

Nihon Koku Uchu Gakkai-Shi, 44(515), p.681 - 690, 1996/12

no abstracts in English

Journal Articles

Symbiosis of humankind with nature

Kaneko, Yoshihiko*

Genshiryoku Kogyo, 42(3), p.51 - 59, 1996/00

no abstracts in English

Journal Articles

Delayed integral counting method for rod drop experiments

Kaneko, Yoshihiko*; Yamane, Tsuyoshi; Shimakawa, Satoshi; Yamashita, Kiyonobu

Nihon Genshiryoku Gakkai-Shi, 38(11), p.907 - 911, 1996/00

 Times Cited Count:0 Percentile:0.01(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Conceptual design of transmutation plant

Takizuka, Takakazu; Takada, Hiroshi; Kanno, Ikuo; ; Akabori, Mitsuo; Kaneko, Yoshihiko

LA-12205-C, p.707 - 721, 1991/11

no abstracts in English

Journal Articles

Intense proton accelerator development program

Mizumoto, Motoharu; ; *; *; Tanaka, Hideki*; Okumura, Yoshikazu; Kaneko, Yoshihiko

LA-12205-C, p.736 - 752, 1991/11

no abstracts in English

JAEA Reports

Absolute calibration of the neutron yield measurement on JT-60 Upgrade

Nishitani, Takeo; Takeuchi, Hiroshi; Barnes, C. W.*; Iguchi, Tetsuo*; Nagashima, Akira; Kondoh, Takashi; Sakasai, Akira; Itami, Kiyoshi; Tobita, Kenji; Nagashima, Keisuke; et al.

JAERI-M 91-176, 23 Pages, 1991/10

JAERI-M-91-176.pdf:1.08MB

no abstracts in English

Journal Articles

Study on a drift tube linac for the basic technology accelerator in JAERI

*; Mizumoto, Motoharu; ; *; *; Kaneko, Yoshihiko

Proc. of the 16th LINEAR Accelerator Meeting in Japan, p.127 - 129, 1991/09

no abstracts in English

Journal Articles

A Study for high intensity proton linear accelerator development in JAERI

Mizumoto, Motoharu; ; *; *; Tanaka, Hideki*; Okumura, Yoshikazu; ; *; *; Kaneko, Yoshihiko

Proc. of the 16th LINEAR Accelerator Meeting in Japan, p.121 - 123, 1991/09

no abstracts in English

Journal Articles

Study on a radio frequency quadrupole for the basic technology accelerator in JAERI

; Mizumoto, Motoharu; *; *; Kaneko, Yoshihiko

Proc. of the 16th LINEAR Accelerator Meeting in Japan, p.124 - 126, 1991/09

no abstracts in English

35 (Records 1-20 displayed on this page)