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Takano, Katsutoshi; Koizumi, Norikiyo; Shimizu, Tatsuya; Nakajima, Hideo; Esaki, Koichi*; Nagamoto, Yoshifumi*; Makino, Yoshinobu*
Teion Kogaku, 47(3), p.178 - 185, 2012/03
In the ITER TF coil, the tight tolerances of 1 mm in flatness and a few mm in profile are required in manufacturing a radial plate (RP), although the height and width of an RP are 13 m and 9 m, respectively. In addition, since cover plates (CP) should be fitted to a groove of an RP with tolerance of 0.5 mm, the tight tolerances are also required to a CP. Thus, we can conclude that the manufacturing procedure of the RP and CP has been demonstrated.
Sakai, Kenji; Oku, Takayuki; Shinohara, Takenao; Kira, Hiroshi; Oi, Motoki; Maekawa, Fujio; Kakurai, Kazuhisa; Ino, Takashi*; Arimoto, Yasushi*; Shimizu, Hirohiko*; et al.
Journal of Physics; Conference Series, 340, p.012037_1 - 012037_7, 2012/02
Times Cited Count：2 Percentile：64.41At the Materials and Life science experimental Facility (MLF) in J-PARC, an experiment of detecting a neutron polarizing ability caused by a neutron-nuclear (n-N) spin correlation term at a resonant peak of 
Xe is planned. The Xe gas having a high polarization under low magnetic field and room temperature by a spin exchange optical pumping (SEOP) technique is expected to become a suitable target for verification of the neutron optical theorem (NOPT). We evaluated measurable quantities based on the NOPT, developed a polarized Xe gas system, and carried out a feasibility test of our apparatus. This paper reports on the present status of the experiment.
Ogata, Kazuyuki*; Matsumoto, Takuma*; Hashimoto, Shintaro; Minomo, Kosho*; Egami, Tomoaki*; Iseri, Yasunori*; Kono, Michio*; Chiba, Satoshi; Bertulani, C. A.*; Shimizu, Yoshifumi*; et al.
Journal of Physics; Conference Series, 312, p.082008_1 - 082008_10, 2011/09
Times Cited Count：1 Percentile：48.7Recent studies on breakup reactions with the continuum-discretized coupled channels method are reviewed. The topics covered are: four-body breakup processes for 
He induced reaction, dynamical relativistic effects on coulomb breakup, microscopic description of projectile breakup processes, description of ternary processes (new triple-
reaction rate) and new approach to inclusive breakup processes.
He neutron spin filter in JapanKira, Hiroshi; Sakaguchi, Yoshifumi; Oku, Takayuki; Suzuki, Junichi; Nakamura, Mitsutaka; Arai, Masatoshi; Endo, Yasuo; Chang, L.-J.; Kakurai, Kazuhisa; Arimoto, Yasushi*; et al.
Journal of Physics; Conference Series, 294, p.012014_1 - 012014_5, 2011/06
Times Cited Count：11 Percentile：95.64He neutron spin filters on the small-angle neutron scattering spectrometer SANS-J-IISakaguchi, Yoshifumi; Kira, Hiroshi; Oku, Takayuki; Shinohara, Takenao; Suzuki, Junichi; Sakai, Kenji; Nakamura, Mitsutaka; Aizawa, Kazuya; Arai, Masatoshi; Noda, Yohei; et al.
Journal of Physics; Conference Series, 294(1), p.012017_1 - 012017_7, 2011/06
Times Cited Count：2 Percentile：68.37He neutron spin filter cellsSakaguchi, Yoshifumi; Kira, Hiroshi; Oku, Takayuki; Shinohara, Takenao; Suzuki, Junichi; Sakai, Kenji; Nakamura, Mitsutaka; Suzuya, Kentaro; Aizawa, Kazuya; Arai, Masatoshi; et al.
Journal of Physics; Conference Series, 294(1), p.012004_1 - 012004_7, 2011/06
Times Cited Count：2 Percentile：68.37Kira, Hiroshi; Sakaguchi, Yoshifumi; Oku, Takayuki; Suzuki, Junichi; Nakamura, Mitsutaka; Arai, Masatoshi; Kakurai, Kazuhisa; Endo, Yasuo; Arimoto, Yasushi*; Ino, Takashi*; et al.
Physica B; Condensed Matter, 406(12), p.2433 - 2435, 2011/06
Times Cited Count：8 Percentile：39.13(Physics, Condensed Matter)He neutron spin filtersSakaguchi, Yoshifumi; Kira, Hiroshi; Oku, Takayuki; Shinohara, Takenao; Suzuki, Junichi; Sakai, Kenji; Nakamura, Mitsutaka; Suzuya, Kentaro; Aizawa, Kazuya; Arai, Masatoshi; et al.
Physica B; Condensed Matter, 406(12), p.2443 - 2447, 2011/06
He neutron spin filtersSakaguchi, Yoshifumi; Kira, Hiroshi; Oku, Takayuki; Shinohara, Takenao; Suzuki, Junichi; Sakai, Kenji; Nakamura, Mitsutaka; Suzuya, Kentaro; Aizawa, Kazuya; Arai, Masatoshi; et al.
Physica B; Condensed Matter, 406(12), p.2443 - 2447, 2011/06
Times Cited Count：3 Percentile：17.85(Physics, Condensed Matter)He neutron spin filter cellsSakaguchi, Yoshifumi; Kira, Hiroshi; Oku, Takayuki; Shinohara, Takenao; Suzuki, Junichi; Sakai, Kenji; Nakamura, Mitsutaka; Suzuya, Kentaro; Arai, Masatoshi; Takeda, Masayasu; et al.
Nuclear Instruments and Methods in Physics Research A, 634(1, Suppl.), p.S122 - S125, 2011/04
states in 
Gd populated by the 
decay of EuNagae, Daisuke*; Ishii, Tetsuro; Takahashi, Ryuta*; Asai, Masato; Makii, Hiroyuki; Osa, Akihiko; Sato, Tetsuya; Ichikawa, Shinichi; Shimizu, Yoshifumi*; Shoji, Takuya*
AIP Conference Proceedings 1224, p.156 - 160, 2010/04
Times Cited Count：2 Percentile：65.93
OsShizuma, Toshiyuki; Mitarai, Shiro*; Sletten, G.*; Bark, R. A.*; Gjorup, N. L.*; Jensen, H. J.*; Piiparinen, M.*; Wrzesinski, J.*; Shimizu, Yoshifumi*
Physical Review C, 69(2), p.024305_1 - 024305_18, 2004/02
Times Cited Count：13 Percentile：62.91(Physics, Nuclear)High-spin states in Os have been studied using the 
Yb(
C,4n) reaction at a beam energy of 65MeV. Previously known 1-quasiparticle bands have been extended to higher spins. New high-
bands based on 3- and 5-quasiparticle excitation have been identified. Nilsson configurations are assigned based on the g-factors deduced from M1/E2 branching ratios within the bands. In addition, a new isomer at 5008keV has been found with a half-life of 18(2) ns. The hindrance in decays of the high- intrinsic states are discussed in terms of the 
tunneling model where the low- and high- states interact through the triaxial shape fluctuation.
isomeric decaysShizuma, Toshiyuki; Shimizu, Yoshifumi*; Hayakawa, Takehito
Journal of Nuclear Science and Technology, 39(11), p.1137 - 1141, 2002/11
Times Cited Count：3 Percentile：24.34(Nuclear Science & Technology)We have systematically investigated the highly -forbidden transitions observed in the Hf, W and Os region, using the -tunneling model in which low- and high- states interact through a process of the quantum tunneling. In the present study, we have analyzed -forbidden transitions recently observed. The measured hindrance factors are compared with the values calculated using the -tunneling model. We have also investigated isotope dependences of tunneling probabilities particularly for neutron-rich nuclei.
-forbidden transitions in 
OsShizuma, Toshiyuki; Matsuura, Katsuyuki*; Toh, Yosuke; Hayakawa, Takehito; Oshima, Masumi; Hatsukawa, Yuichi; Matsuda, Makoto; Furuno, Kohei*; Sasaki, Yasuyuki*; Komatsubara, Tetsuro*; et al.
Nuclear Physics A, 696(3-4), p.337 - 370, 2001/12
Times Cited Count：18 Percentile：72.34(Physics, Nuclear)High-spin states in Os have been studied using the 170Er(18O,5n) reaction at a beam energy of 85 MeV. Nine rotational bands based on 1-, 3-, 5- and 7-quasiparticle excitations have been observed. Nilsson configurations are assigned for the newly observed bands using g-factors deduced from M1/E2 branching ratios within the bands. In addition, two isomers with K=(43/2+) and (43/2-) have been identified. The K=(43/2+) isomer decays directly to the K=9/2+ ground state band with a large difference in the quantum number, 
17. The decay rates are disccused in terms of a tunneling model where high- (isomeric) and low- states interact via fluctuations towards triaxial nuclear shapes.
He neutron spin filters, 3Sakaguchi, Yoshifumi; Kira, Hiroshi; Oku, Takayuki; Suzuki, Junichi; Nakamura, Mitsutaka; Arai, Masatoshi; Endo, Yasuo; Kakurai, Kazuhisa; Takeda, Masayasu; Wakimoto, Shuichi; et al.
no journal, ,
Polarized neutron scattering is a powerful technique in order to clarify the magnetic structure of materials. The technique is often used in JRR-3 nowadays. However, the available energy has been limited below 100 meV as long as we use the conventional polarizing method. To realize polarized neutron scattering experiments above the energy, the use of He spin filters is the best solution. In addition, in the new pulsed neutron facility, J-PARC, the neutron source has wide energy spectrum. To polarize all the neutrons, it is desired to use the He spin filters. Taking these backgrounds into account, we are now planning to introduce He neutron spin filters to polarized neutron experiments at JRR-3 and J-PARC. In our oral presentation, we report the detailed plan of the experiments and the present status of the preparation.
He neutron spin filters, 2Kira, Hiroshi; Sakaguchi, Yoshifumi; Oku, Takayuki; Suzuki, Junichi; Nakamura, Mitsutaka; Arai, Masatoshi; Endo, Yasuo; Kakurai, Kazuhisa; Arimoto, Yasushi*; Ino, Takashi*; et al.
no journal, ,
no abstracts in English
He polarized neutron spin filters and its present status, 2Kira, Hiroshi; Sakaguchi, Yoshifumi; Oku, Takayuki; Suzuki, Junichi; Nakamura, Mitsutaka; Arai, Masatoshi; Endo, Yasuo; Kakurai, Kazuhisa; Arimoto, Yasushi*; Ino, Takashi*; et al.
no journal, ,
no abstracts in English
He neutron spin filtersSakaguchi, Yoshifumi; Kira, Hiroshi; Oku, Takayuki; Suzuki, Junichi; Nakamura, Mitsutaka; Arai, Masatoshi; Endo, Yasuo; Kakurai, Kazuhisa; Takeda, Masayasu; Wakimoto, Shuichi; et al.
no journal, ,
no abstracts in English
He gas neutron spin filtersKira, Hiroshi; Sakaguchi, Yoshifumi; Oku, Takayuki; Suzuki, Junichi; Nakamura, Mitsutaka; Arai, Masatoshi; Endo, Yasuo; Arimoto, Yasushi*; Ino, Takashi*; Shimizu, Hirohiko*; et al.
no journal, ,
no abstracts in English
HeChang, L.-J.; Oku, Takayuki; Kira, Hiroshi; Sakaguchi, Yoshifumi; Sakai, Kenji; Shinohara, Takenao; Suzuki, Junichi; Nakamura, Mitsutaka; Arai, Masatoshi; Takeda, Masayasu; et al.
no journal, ,
