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Tamura, Fumihiko; Omori, Chihiro*; Yoshii, Masahito*; Tomizawa, Masahito*; Toyama, Takeshi*; Sugiyama, Yasuyuki*; Hasegawa, Katsushi*; Kobayashi, Aine*; Okita, Hidefumi
Proceedings of 19th Annual Meeting of Particle Accelerator Society of Japan (Internet), p.175 - 178, 2023/01
J-PARC MR delivers high intensity proton beams to the neutrino experiment. Eight bunches with high peak currents are extracted from the MR by the extraction kicker, therefore the neutrino beam has the similar structure. Intermediate Water Cherenkov Detector (IWCD) will be installed for the future experiments and the IWCD requires a time structure with low peaks. We consider bunch manipulation at flattop of the MR for reducing the peak current. It should be quickly done to avoid the significant loss of the beam power. The beam gap for the kicker rise time must be kept. We propose a non-adiabatic bunch manipulation using the multiharmonic rf voltage. The longitudinal impedance in the MR can affect the beam stability. The feasibility of the manipulation is discussed by using the longitudinal simulations.
Tsuji, Takuya; Matsumura, Daiju; Kobayashi, Toru; Suzuki, Shinichi; Yoshii, Kenji; Nishihata, Yasuo; Yaita, Tsuyoshi
Clay Science, 18(4), p.93 - 97, 2014/12
Ru
O
thin filmsTerai, Kota*; Yoshii, Kenji; Takeda, Yukiharu; Fujimori, Shinichi; Saito, Yuji; Owada, Kenji; Inami, Toshiya; Okane, Tetsuo; Arita, Masashi*; Shimada, Kenya*; et al.
Physical Review B, 77(11), p.115128_1 - 115128_6, 2008/03
Times Cited Count：15 Percentile：54.78(Materials Science, Multidisciplinary)RuO thin filmsTerai, Kota; Yoshii, Kenji; Takeda, Yukiharu; Fujimori, Shinichi; Saito, Yuji; Owada, Kenji; Inami, Toshiya; Okane, Tetsuo; Arita, Masashi*; Shimada, Kenya*; et al.
Journal of Magnetism and Magnetic Materials, 310(2, Part2), p.1070 - 1072, 2007/03
We have studied the electronic and magnetic properties of epitaxially grown CaMnRuO (x = 1.0, 0.5) thin films by X-ray magnetic circular dichroism (XMCD) and hard X-ray photoemission spectroscopy (HXPES). The XMCD studies indicated that the spin moments of Mn and Ru are aligned in the opposite directions. The HXPES spectra indicated the Ru 4d states at around the Fermi edge (E
) and the Mn 3d states below E. From these results, we propose that the localized Mn 3d t
states and the itinerant Ru 4d t band are antiferromagnetically coupled and give rise to ferromagnetism, in analogy with the mechanism proposed for the double perovskite oxides such as Sr
FeMoO
.
Uesaka, Mitsuru*; Kinoshita, Kenichi*; Watanabe, Takahiro*; Sugahara, Jun*; Ueda, Toru*; Yoshii, Koji*; Kobayashi, Tetsuya*; Halz, N.*; Nakajima, Kazuhisa; Sakai, Fumio*; et al.
IEEE Transactions on Plasma Science, 28(4), p.1133 - 1142, 2000/08
Times Cited Count：14 Percentile：41.8(Physics, Fluids & Plasmas)no abstracts in English
Katagiri, Masaki; Kobayashi, Yoshii; Takahashi, Koji*; *; *
KEK-Proceedings 96-4, 0, p.209 - 213, 1996/07
no abstracts in English
Cf*; Shinohara, Nobuo; ; Tsukada, Kazuaki; ; Usuda, Shigekazu; ; *; Nagame, Yuichiro; Kobayashi, Yoshii; et al.
Radiochimica Acta, 72, p.39 - 43, 1996/00
no abstracts in English
Pb and 
Be within the Kuji River watershed, JapanMatsunaga, Takeshi; Amano, Hikaru; Ueno, Takashi; Yanase, Nobuyuki; Kobayashi, Yoshii
Journal of Environmental Radioactivity, 26, p.3 - 17, 1995/00
Times Cited Count：16 Percentile：48.86(Environmental Sciences)no abstracts in English
CsUeno, Takashi; Amano, Hikaru; Kobayashi, Yoshii
Hoken Butsuri, 29(1), p.17 - 22, 1994/03
no abstracts in English
Muraoka, Susumu; ; Kobayashi, Yoshii
JAERI-M 93-037, 71 Pages, 1993/03
no abstracts in English
Yanase, Nobuyuki; Ueno, Takashi; Sekine, Keiichi; Kobayashi, Yoshii
Dai-34-Kai Kankyo Hoshano Chosa Kenkyu Seika Rombun Shorokushu; Heisei-3-Nendo, p.96 - 97, 1992/12
no abstracts in English
Muraoka, Susumu; ; Kobayashi, Yoshii
JAERI-M 92-022, 73 Pages, 1992/03
no abstracts in English
Amano, Hikaru; Kobayashi, Yoshii; *; *
Kankyo Radon, p.42 - 52, 1992/03
no abstracts in English
Komaki, Yoshihide; ; ; ; Sakurai, Tsutomu; ; Kobayashi, Yoshii; Adachi, Takeo
Nihon Genshiryoku Gakkai-Shi, 33(5), p.489 - 497, 1991/05
Times Cited Count：0 Percentile：0.01(Nuclear Science & Technology)no abstracts in English
Muraoka, Susumu; ; Kobayashi, Yoshii
JAERI-M 91-019, 69 Pages, 1991/02
no abstracts in English
Amano, Hikaru; Matsunaga, Takeshi; Ueno, Takashi; Yanase, Nobuyuki; Kobayashi, Yoshii
3rd Int. Symp. on Advanced Nuclear Energy Research; Global Environment and Nuclear Energy, 4 Pages, 1991/00
no abstracts in English
Adachi, Takeo; ; *; ; *; Takeishi, Hideyo; Gunji, Katsubumi; Kimura, Takaumi; ; Nakahara, Yoshinori; et al.
Journal of Nuclear Materials, 174, p.60 - 71, 1990/00
Times Cited Count：40 Percentile：94.49(Materials Science, Multidisciplinary)no abstracts in English
Onuki, Toshihiko; Murakami, Takashi; Sekine, Keiichi; Yanase, Nobuyuki; Isobe, Hiroshi; Kobayashi, Yoshii
Materials Research Society Symposium Proceedings, Vol. 176, p.607 - 614, 1990/00
no abstracts in English
Kimura, Takaumi; Goto, Hiroshi; Kobayashi, Yoshii; Akatsu, Jokun
Journal of Radioanalytical and Nuclear Chemistry, 125(1), p.29 - 40, 1988/00
Times Cited Count：0 Percentile：0.02(Chemistry, Analytical)no abstracts in English
RuO thin filmsTerai, Kota; Okane, Tetsuo; Takeda, Yukiharu; Fujimori, Shinichi; Saito, Yuji; Yoshii, Kenji; Kobayashi, Keisuke*; Fujimori, Atsushi
no journal, ,
A pseudobinary alloy of CaMnRuO (CMRO) is interesting because the solid solution CMRO shows a metallic ferromagnetism although both of the end compositions does not show ferromagnetism. We have fabricated the epitaxial CMRO thin films using the pulsed laser deposition (PLD) method, and studied the ferromagnetic moments by soft X-ray absorption magnetic circular dichroism (XMCD) measurements. The XMCD studies indicated that the spin moments of Mn and Ru are aligned in antiparallel directions. We consider that the small total magnetic moment of CMRO results from the cancellation of the Ru spin moment from Mn spin moment.
