Hiromi Iinuma
KEK
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Publication
Featured researches published by Hiromi Iinuma.
Journal of Physics: Conference Series | 2011
Hiromi Iinuma
A new measurement of anomalous magnetic moment of the positive muon aμ down to the level of 0.01 ppm and the electric dipole moment EDM with the improved sensitivity better than order of magnitude is proposed. Novel techniques utilizing an ultra-cold muon beam accelerated to 300 MeV/c and a 66 cm diameter of super-precisely controlled magnetic storage ring are introduced. An unique beam injection and storage scheme to control the beam trajectory into such a compact storage ring are also discussed.
Proceedings of the International Symposium on Science Explored by Ultra Slow Muon (USM2013) | 2014
K. S. Tanaka; M. Aoki; Hiromi Iinuma; Y. Ikedo; K. Ishida; M. Iwasaki; Y. Ueno; Ryuji Ohkubo; T. Ogitsu; Ryosuke Kadono; O. Kamigaito; N. Kawamura; D. Kawall; S. Kanda; Kenya Kubo; T. Kume; Akihiro Koda; K. M. Kojima; Naohito Saito; N. Sakamoto; K. Sasaki; K. Shimomura; Michinaka Sugano; D. Tomono; A. Toyoda; H. Torii; E. Torikai; K. Nagamine; K. Nishiyama; P. Strasser
J-PARC K. S. Tanaka1,3, M. Aoki4, H. Iinuma2, Y. Ikedo2, K. Ishida3, M. Iwasaki3, K. Ueno2, Y. Ueno1, T. Okubo2, T. Ogitsu2, R. Kadono2, O. Kamigaito3, N. Kawamura2, D. Kawall8, S. Kanda2,6, K. Kubo7, A. Koda2, K. M. Kojima2, N. Saito2, N. Sakamoto3, K. Sasaki2, K. Shimomura2, M. Sugano2, M. Tajima1, D. Tomono9, A. Toyoda2, H. A. Torii1, E. Torikai5, K. Nagamine2, K. Nishiyama2, P. Strasser2, Y. Higashi1, T. Higuchi1, Y. Fukao2, Y. Fujiwara6, Y. Matsuda1, T. Mibe2, Y. Miyake2, T. Mizutani1, M. Yoshida2, and A. Yamamoto2
Progress of Theoretical and Experimental Physics | 2013
Pavel Bakule; G. Beer; D. Contreras; M. Esashi; Y. Fujiwara; Y. Fukao; S. Hirota; Hiromi Iinuma; K. Ishida; M. Iwasaki; T. Kakurai; S. Kanda; H. Kawai; N. Kawamura; G. M. Marshall; H. Masuda; Yasuhiro H. Matsuda; T. Mibe; Yasuhiro Miyake; S. Okada; K. Olchanski; A. Olin; H. Onishi; K. Shimomura; P. Strasser; Makoto Tabata; D. Tomono; K. Ueno; K. Yokoyama; S. Yoshida
Emission of muonium (
IEEE Transactions on Applied Superconductivity | 2011
K. Sasaki; Hiromi Iinuma; N. Kimura; T. Ogitsu; Akira Yamamoto; H. Nakayama; T. Mibe; Naohito Saito; Takayuki Obata
\mu^{+}e^{-}
Proceedings of the 2nd International Symposium on Science at J-PARC — Unlocking the Mysteries of Life, Matter and the Universe — | 2015
Hiroyuki A. Torii; H. Torii; M. Aoki; Y. Fukao; Y. Higashi; Takashi Higuchi; Hiromi Iinuma; Y. Ikedo; K. Ishida; Masahiko Iwasaki; Ryosuke Kadono; O. Kamigaito; S. Kanda; D. Kawall; N. Kawamura; Akihiro Koda; K. M. Kojima; Kenya Kubo; Y. Matsuda; T. Mibe; Y. Miyake; T. Mizutani; K. Nagamine; K. Nishiyama; T. Ogitsu; R. Okubo; Naohito Saito; K. Sasaki; K. Shimomura; P. Strasser
) atoms from silica aerogel into vacuum was observed. Characteristics of muonium emission were established from silica aerogel samples with densities in the range from 29 mg cm
Proceedings of the 2nd International Symposium on Science at J-PARC — Unlocking the Mysteries of Life, Matter and the Universe — | 2015
S. Kanda; K. Nishiyama; Naohito Saito; Hiromi Iinuma; K. Sasaki; R. Okubo; H. Torii; M. Tajima; T. Ogitsu; T. Mizutani; Kazuo Tanaka; K. Nagamine; D. Kawall; M. Aoki; E. Torikai; Ryosuke Kadono; N. Kawamura; A. Toyoda; Takashi Higuchi; Y. Ueno; Y. Matsuda; Y. Ikedo; K. Ueno; P. Strasser; Kenya Kubo; K. M. Kojima; O. Kamigaito; K. Shimomura; Akira Yamamoto; M. Iwasaki
^{-3}
Journal of Physics: Conference Series | 2013
Ken-ichi Sasaki; Michinaka Sugano; Hiromi Iinuma; T. Ogitsu; Naohito Saito; K. Shimomura; Akira Yamamoto
to 178 mg cm
IEEE Transactions on Applied Superconductivity | 2012
K. Sasaki; Michinaka Sugano; Ryuji Ohkubo; Hiromi Iinuma; T. Ogitsu; Naohito Saito; K. Shimomura; Akira Yamamoto
^{-3}
nuclear science symposium and medical imaging conference | 2011
Kazuki Ueno; Hiromi Iinuma; M. Iwasaki; T. Kakurai; S. Kanda; T. Kohriki; T. Mibe; O. Sasaki; Naohito Saito
. Spectra of muonium decay times correlated with distances from the aerogel surfaces, which are sensitive to the speed distributions, follow general features expected from a diffusion process, while small deviations from a simple room-temperature thermal diffusion model are identified. The parameters of the diffusion process are deduced from the observed yields.
International Journal of Modern Physics: Conference Series | 2016
H. Torii; Y. Higashi; T. Higuchi; Y. Matsuda; T. Mizutani; M. Tajima; Kazuo Tanaka; Y. Ueno; Y. Fukao; Hiromi Iinuma; Y. Ikedo; Ryosuke Kadono; N. Kawamura; Akihiro Koda; K. M. Kojima; T. Mibe; Y. Miyake; K. Nagamine; K. Nishiyama; T. Ogitsu; R. Okubo; Naohito Saito; K. Sasaki; K. Shimomura; P. Strasser; Michinaka Sugano; A. Toyoda; K. Ueno; Akira Yamamoto; Makoto Yoshida
Basic R&Ds of a superconducting solenoid for a new g-2 experiment at J-PARC are on going. High uniformity of magnetic field below 0.1 ppm is required for the g-2 experiment within a storage region of 33.3±5 cm in radius and ±10 cm in height. Two R&Ds have been started to develop the magnet with such high uniformity; a development of a precise field monitoring system and a study of seismic ground vibration. The prototype monitoring system using continuous wave type NMR probe for horizontal MRI solenoid has been built and tested. Cross-check between NMR and Hall probe has been also carried out. The seismic ground vibration has been measured at Materials and Life science Facility, MLF, in J-PARC. Based on the measured results, the spectrum analysis of the iron yoke has been performed using ANSYS.
