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Tanaka, Taiki*; Morita, Kosuke*; Morimoto, Koji*; Kaji, Daiya*; Haba, Hiromitsu*; Boll, R. A.*; Brewer, N. T.*; Van Cleve, S.*; Dean, D. J.*; Ishizawa, Satoshi*; et al.
Physical Review Letters, 124(5), p.052502_1 - 052502_6, 2020/02
Times Cited Count:20 Percentile:81.15(Physics, Multidisciplinary)Wilson, G. L.*; Takeyama, Mirei*; Andreyev, A. N.; Andel, B.*; Antalic, S.*; Catford, W. N.*; Ghys, L.*; Haba, Hiromitsu*; Heberger, F. P.*; Huang, M.*; et al.
Physical Review C, 96(4), p.044315_1 - 044315_7, 2017/10
Times Cited Count:6 Percentile:46.42(Physics, Nuclear)Hofmann, S.*; Heinz, S.*; Mann, R.*; Maurer, J.*; Mnzenberg, G.*; Antalic, S.*; Barth, W.*; Burkhard, K. G.*; Dahl, L.*; Eberhardt, K.*; et al.
European Physical Journal A, 52(6), p.180_1 - 180_34, 2016/06
Times Cited Count:171 Percentile:93.43(Physics, Nuclear)Hofmann, S.*; Heinz, S.*; Mann, R.*; Maurer, J.*; Mnzenberg, G.*; Antalic, S.*; Barth, W.*; Dahl, L.*; Eberhardt, K.*; Grzywacz, R.*; et al.
European Physical Journal A, 52(4), p.116_1 - 116_12, 2016/04
Times Cited Count:29 Percentile:87.47(Physics, Nuclear)Sasaki, Yuji; Sugo, Yumi; Morita, Keisuke; Nash, K.*; Nash, K. L.*
Solvent Extraction and Ion Exchange, 33(7), p.625 - 641, 2015/10
Times Cited Count:96 Percentile:91.25(Chemistry, Multidisciplinary)The effect of alkyl substituents at amidic N atoms in diglycolamide (DGA) compounds on solvent extraction was investigated. The solubility in water and n-dodecane, loading capacity, and distribution ratio (D) of lanthanides and actinides for various DGA compounds were monitored. DGA derivatives with short alkyl chains, for example methyl and ethyl groups, are highly water soluble, while DGA derivatives with long alkyl chains are highly soluble in n-dodecane. The loading capacity correlats with their alkyl chain lengths. The results of masking effect and solubility tests indicate that TEDGA(tetraethyl-diglycolamide) is the best actinide masking agent among the water-soluble DGA derivatives. Actinide extractions were performed using ten DGA compounds in six diluents (nitrobenzene, 1,2-dichloroethane, 1-octanol, chloroform, toluene, and n-dodecane), in which it was observed that DGA derivatives with shorter alkyl chains show higher D values.
Esirkepov, T. Z.; Koga, J. K.; Sunahara, Atsushi*; Morita, Toshimasa; Nishikino, Masaharu; Kageyama, Kei*; Nagatomo, Hideo*; Nishihara, Katsunobu; Sagisaka, Akito; Kotaki, Hideyuki; et al.
Nuclear Instruments and Methods in Physics Research A, 745, p.150 - 163, 2014/05
Times Cited Count:45 Percentile:96.27(Instruments & Instrumentation)Morita, Toshimasa; Bulanov, S. V.; Esirkepov, T. Z.; Koga, J. K.; Kando, Masaki
Journal of the Physical Society of Japan, 81(2), p.024501_1 - 024501_6, 2012/02
Times Cited Count:5 Percentile:38.16(Physics, Multidisciplinary)It is shown analytically and by three-dimensional particle-in-cell simulations that higher energy protons are obtained by using material with a high charge-to-mass ratio in the first layer of a double-layer target, because a strong Coulomb explosion occurs in such a material. As a result, the protons keep accelerating for a longer time. Using the optimal conditions for the target, it is shown that high energy and high quality protons can be generated.
Morita, Toshimasa; Bulanov, S. V.; Esirkepov, T. Z.; Koga, J. K.; Kando, Masaki
JAEA-Conf 2011-001, p.94 - 96, 2011/03
no abstracts in English
Morita, Toshimasa; Bulanov, S. V.; Esirkepov, T. Z.; Koga, J. K.; Yamagiwa, Mitsuru
AIP Conference Proceedings 1153, p.103 - 112, 2009/07
In proton acceleration by a laser pulse obliquely incident on a double layer target, it is shown by PIC simulations that the energy spread of the generated protons can be reduced by irradiating the laser pulse on to the off-center position of the target. This provides a way to control the proton energy spectrum. The high energy protons are found to come from an area shifted from the initial target center towards the propagation direction of the laser pulse. We show that the high energy protons with much smaller energy spread can be obtained by appropriately adjusting the size and position of the second proton layer.
Morita, Toshimasa; Bulanov, S. V.; Esirkepov, T. Z.; Koga, J. K.; Yamagiwa, Mitsuru
Physics of Plasmas, 16(3), p.033111_1 - 033111_7, 2009/03
Times Cited Count:7 Percentile:27.36(Physics, Fluids & Plasmas)We investigate proton acceleration by a laser pulse obliquely incident on a double layer target via 3D PIC simulations. It is found that the proton beam energy spread changes by the laser irradiation position and it reaches a minimum at certain position. This provides a way to control the proton energy spectrum. We show that by appropriately adjusting the size and position of the second proton layer that high energy protons with much smaller energy spread can be obtained.
Morita, Toshimasa; Esirkepov, T. Z.; Koga, J. K.; Yamagiwa, Mitsuru; Bulanov, S. V.
Plasma Physics and Controlled Fusion, 51(2), p.024002_1 - 024002_18, 2009/02
Times Cited Count:9 Percentile:10.58(Physics, Fluids & Plasmas)We investigate theoretically and with three dimensional particle-in-cell simulations high quality laser proton acceleration for the oblique incidence of a high intensity laser pulse on a double-layer target. The double-layer target is composed of a high-Z ion layer coated by a thin and narrow hydrogen patch. The highest proton energy gain is achieved at a certain incidence angle at which the fast proton maximum energy is much greater than the case of normal incidence. The fast protons form a tilted bunch which propagates at some angle with the respect to the normal of the target surface, as determined by the proton energy and the incidence angle.
Morita, Toshimasa; Esirkepov, T. Z.; Bulanov, S. V.; Koga, J. K.; Yamagiwa, Mitsuru
AIP Conference Proceedings 1024, p.114 - 124, 2008/06
We investigate high quality laser proton acceleration with three dimensional particle-in-cell simulations for oblique incidence of the laser pulse on a double-layer target. The double-layer target is composed of a high-Z ion layer coated by a thin and narrow hydrogen patch. The highest proton energy gain is achieved at a certain incidence angle at which the fast proton maximum energy is much grater than the case of normal incidence. The fast protons form a tilted bunch which propagates at some angle with the respect to the normal of the target surface, as determined by the proton energy and the incidence angle.
Morita, Toshimasa; Esirkepov, T. Z.; Bulanov, S. V.; Koga, J. K.; Yamagiwa, Mitsuru
Physical Review Letters, 100(14), p.145001_1 - 145001_4, 2008/04
Times Cited Count:36 Percentile:80.64(Physics, Multidisciplinary)The laser-driven acceleration of high quality proton beams from a double-layer target, comprised of a high-Z ion layer and a thin disk of hydrogen, is investigated with three-dimensional particle-in-cell simulations in the case of oblique incidence of a laser pulse. It is shown that the proton beam energy reaches its maximum at a certain incidence angle of the laser pulse, where it can be much greater than the energy at normal incidence. The proton beam propagates at some angle with respect to the target surface normal, as determined by the proton energy and the incidence angle.
Zegers, R. G. T.*; Sumihama, Mizuki*; Ahn, D. S.*; Ahn, J. K.*; Akimune, Hidetoshi*; Asano, Yoshihiro; Chang, W. C.*; Dat, S.*; Ejiri, Hiroyasu*; Fujimura, Hisako*; et al.
Physical Review Letters, 91(9), p.092001_1 - 092001_4, 2003/08
Times Cited Count:128 Percentile:94.86(Physics, Multidisciplinary)no abstracts in English
Nakano, Takashi*; Ahn, D. S.*; Ahn, J. K.*; Akimune, Hidetoshi*; Asano, Yoshihiro; Chang, W. C.*; Date, S.*; Ejiri, Hiroyasu*; Fujimura, Hisako*; Fujiwara, Mamoru; et al.
Physical Review Letters, 91(1), p.012002_1 - 012002_4, 2003/07
Times Cited Count:1007 Percentile:99.86(Physics, Multidisciplinary)no abstracts in English
Morita, Yasuji; J.-P.Glatz*; Kubota, Masumitsu; L.Koch*; G.Pagliosa*; K.Roemer*; A.Nicholl*
Solvent Extr. Ion Exch., 14(3), p.385 - 400, 1996/00
Times Cited Count:87 Percentile:92.96(Chemistry, Multidisciplinary)no abstracts in English
Yoshida, Masaru; Asano, Masaharu; Morita, Y.*; Kaetsu, Isao; Imai, Koichi*; Mashimo, Toru*; Yuasa, Hisako*; Yamanaka, Hidetoshi*; ; Suzuki, K.*
Biomaterials, 10, p.16 - 22, 1989/01
Times Cited Count:10 Percentile:45.92(Engineering, Biomedical)no abstracts in English
Yoshida, Masaru; Asano, Masaharu; Kaetsu, Isao; Imai, Koichi*; Mashimo, Toru*; Yuasa, Hisako*; Yamanaka, Hidetoshi*; Suzuki, K.*; Morita, Y.*
Jinko Zoki, 16(3), p.1333 - 1336, 1987/03
no abstracts in English
Kando, Masaki; Bulanov, S. V.; Esirkepov, T. Z.; Faenov, A.*; Fukuda, Yuji; Hayashi, Yukio; Kiriyama, Hiromitsu; Koga, J. K.; Kon, Akira; Kondo, Kiminori; et al.
no journal, ,
Koga, J. K.; Esirkepov, T. Z.; Sunahara, Atsushi*; Morita, Toshimasa; Nishikino, Masaharu; Kageyama, Kei*; Nagatomo, Hideo*; Nishihara, Katsunobu*; Sagisaka, Akito; Kotaki, Hideyuki; et al.
no journal, ,