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Oka, Toshitaka; Takahashi, Atsushi*; Koarai, Kazuma; Mitsuyasu, Yusuke*; Kino, Yasushi*; Sekine, Tsutomu*; Shimizu, Yoshinaka*; Chiba, Mirei*; Suzuki, Toshihiko*; Osaka, Ken*; et al.
Radiation Measurements, 134, p.106315_1 - 106315_4, 2020/06
Times Cited Count：5 Percentile：53.85(Nuclear Science & Technology)The relationship between the CO
radical intensity and the absorbed dose (dose response curve) of tooth enamel of Japanese macaque was observed by electron spin resonance and the detection limit of our system was estimated to be 33.5 mGy, which is comparable to the detection limit for human molar teeth. Using the dose response curve, external exposure dose for seven wild Japanese macaques captured in Fukushima prefecture were examined. The results suggest that the external exposure dose for the wild Japanese macaques were ranged between 45 mGy to 300 mGy.
Kikuchi, Masahiro; Nagata, Natsuki*; Komoda, Seiichi*; Kameya, Hiromi*; Ukai, Mitsuko*; Kobayashi, Yasuhiko
Shokuhin Shosha, 50(1), p.13 - 19, 2015/10
no abstracts in English
in irradiated solid 
-hydrogen and its decay dynamics; Reinvestigation of quartet electron paramagnetic resonance lines assigned to H
Kumada, Takayuki; Tachikawa, Hiroto*; Takayanagi, Toshiyuki*
Physical Chemistry Chemical Physics, 7(5), p.776 - 784, 2005/02
Times Cited Count：12 Percentile：38.35(Chemistry, Physical)The quartet ESR lines observed in X-ray irradiated solid parahydrogen, which have previously been assigned to H, are reinvestigated. We have reassigned the quartet lines to H rather than H. Based on the new assignment, previous data have been reinterpreted as follows. The H ion is composed of the collinearly aligned H core at the center and two H rotors at both ends. The ortho-para conversion of H core of H is completed within the time-scale of hours. H diffuses quantum mechanically by the repetition of H + H 
H + H reaction, and the diffusion terminates by the reaction with a HD impurity as H + HD H
D + H. Finally, we will propose a possible reason why H is produced instead of H
in the irradiated solid H.
Hirade, Tetsuya
Hoshasen Kagaku, (75), p.46 - 51, 2003/03
Enhancement of positronium (Ps) formation at low temperatures has been observed in many materials since 1980's. There were some interpretations. However, none of them explained the phenomena successfully. In 1998, a new idea of the Ps formation was proposed and the expected phenomena were successfully observed. This new Ps formation process will be explained with those experimental results and the possibility of usage of Ps formation for radiation chemistry researches will be also discussed.
molecules in solid D and HD; An Electron spin resonance studyKumada, Takayuki
Journal of Chemical Physics, 117(22), p.10133 - 10138, 2002/12
Times Cited Count：6 Percentile：17.77(Chemistry, Physical)X-band ESR spectroscopy has been applied to the study of molecular rotation of O molecules in isotopic solid hydrogen, D and HD. ESR signal of the O molecules in hindered rotational states has been observed, and its pressure dependence has been measured up to 19 MPa. Although molar volume of solid hydrogen decreases, the O rotation has become less hindered with the increase in pressure and isotope substitution from HD to D. These effects of pressure and isotope substitution suggest that the potential barrier for the O rotation is produced by distortion of spherical O cages in D and HD. Since solid hydrogen becomes less compressible with the increase in pressure and isotope substitution, the O cage would be less distorted, and then the O rotation becomes less hindered.
Iwata, Minoru*; Imai, Fumikazu*; Nakayama, Yoichi*; Imagawa, Kichiro*; Sugimoto, Masaki; Morishita, Norio; Tanaka, Shigeru
Proceedings of 23rd International Symposium on Space Technology and Science (ISTS-23), Vol.1, p.513 - 518, 2002/00
no abstracts in English
Kawasuso, Atsuo; Morishita, Norio; Oshima, Takeshi; Okada, Sohei; Ito, Hisayoshi; Yoshikawa, Masahito; Nashiyama, Isamu; Yoshida, Sadafumi*; Okumura, Hajime*
Applied Physics A, 67(2), p.209 - 212, 1998/00
Times Cited Count：42 Percentile：82.87(Materials Science, Multidisciplinary)no abstracts in English
(Ln=Sm,Eu,and Gd)*; Hinatsu, Yukio*; ; Saeki, Masakatsu
Journal of Solid State Chemistry, 138(2), p.342 - 346, 1998/00
Times Cited Count：17 Percentile：55.3(Chemistry, Inorganic & Nuclear)no abstracts in English
Kawasuso, Atsuo; Ito, Hisayoshi; Okada, Sohei; D.Cha*
Mater. Sci. Forum, 264-268, p.611 - 614, 1998/00
no abstracts in English
Ito, Hisayoshi; D.Cha*; Isoya, Junichi*; Kawasuso, Atsuo; Oshima, Takeshi; Okada, Sohei; Nashiyama, Isamu
Proceedings of 3rd International Workshop on Radiation Effects on Semiconductor Devices for Space Application, p.28 - 33, 1998/00
no abstracts in English
Ito, Hisayoshi; Oshima, Takeshi; Aoki, Yasushi; Abe, Koji*; Yoshikawa, Masahito; Nashiyama, Isamu; Okumura, Hajime*; Yoshida, Sadafumi*; Uedono, Akira*; Tanigawa, Shoichiro*
Journal of Applied Physics, 82(11), p.5339 - 5347, 1997/12
Times Cited Count：13 Percentile：57.46(Physics, Applied)no abstracts in English
Ito, Hisayoshi; Kawasuso, Atsuo; Oshima, Takeshi; Yoshikawa, Masahito; Nashiyama, Isamu; Okumura, Hajime*; Yoshida, Sadafumi*
JAERI-Conf 97-003, p.253 - 255, 1997/03
no abstracts in English
Ito, Hisayoshi; Kawasuso, Atsuo; Oshima, Takeshi; Yoshikawa, Masahito; Nashiyama, Isamu; Tanigawa, Shoichiro*; *; Okumura, Hajime*; Yoshida, Sadafumi*
Physica Status Solidi (A), 162, p.173 - 198, 1997/00
Times Cited Count：132 Percentile：97.83(Materials Science, Multidisciplinary)no abstracts in English
Ito, Hisayoshi; Aoki, Yasushi; Oshima, Takeshi; Yoshikawa, Masahito; Nashiyama, Isamu; Okumura, Hajime*; Yoshida, Sadafumi*
Silicon Carbide and Related Materials 1995 (Institute of Physics Conf. Series,No. 142), 0, p.549 - 552, 1996/00
no abstracts in English
V.Shevtsov*;
Chemical Physics Letters, 244, p.188 - 194, 1995/09
Times Cited Count：3 Percentile：14.17(Chemistry, Physical)no abstracts in English
Ito, Hisayoshi; Oshima, Takeshi; Aoki, Yasushi; Yoshikawa, Masahito; Nashiyama, Isamu; Okumura, Hajime*; Yoshida, Sadafumi*
14th Symp. on Materials Science and Engineering, Research Center of Ion Beam Technology, Hosei Univ., 0, p.147 - 150, 1995/00
no abstracts in English
-SiCIto, Hisayoshi; Aoki, Yasushi; Yoshikawa, Masahito; Nashiyama, Isamu; Okumura, Hajime*; Yoshida, Sadafumi*
13th Symp. on Materials Science and Engineering, Research Center of Ion Beam Technology, Hosei Nniv., 0, p.75 - 80, 1994/12
no abstracts in English
Ito, Hisayoshi; Yoshikawa, Masahito; Nashiyama, Isamu; *; Yoshida, Sadafumi*
Denshi Gijutsu Sogo Kenkyujo Iho, 58(2), p.125 - 132, 1994/00
no abstracts in English
; Noda, Kenji; *; R.G.Clemmer*; Hollenberg, G. W.*
Journal of Nuclear Materials, 212-215, p.908 - 911, 1994/00
Times Cited Count：21 Percentile：84.25(Materials Science, Multidisciplinary)no abstracts in English
Kojima, Takuji; Haruyama, Yasuyuki; S.Sudiro*; R.L.Tobing*; Kashiwazaki, Shigeru*
Radioisotopes, 42(11), p.607 - 613, 1993/11
no abstracts in English
