Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Toshimasa Morita"'
Autor:
Toshimasa Morita
Publikováno v:
Physical Review Research, Vol 4, Iss 4, p 043020 (2022)
Laser-driven carbon ion beams from a carbon foil target via a 2.5-J laser pulse are investigated with three-dimensional particle-in-cell simulations. An ion bunch with a narrow energy range exhibits a thin shell shape with a certain diameter. The ion
Externí odkaz:
https://doaj.org/article/3dee2721589842f9bae77e5e4bd4c1cc
Autor:
Toshimasa Morita, Takashi Eyama, Yasuo Minami, Shodai Takayoshi, Masaharu Nishikino, Tohru Suemoto, Takuro Tomita, Noboru Hasegawa, Yusuke Hirano, Mitsuru Yamagiwa, Tetsuya Kawachi, Takeshi Kaihori, R. Takei, Motoyoshi Baba
Publikováno v:
Journal of Laser Micro/Nanoengineering. 9:137-142
Femtosecond laser ablation processes on platinum, gold, and tungsten were observed by the single shot pump and probe reflective imaging using a soft x-ray laser probe. To avoid the timing error due to the jitter, we adopted a posteriori correction te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0fb7792f29f516e38e38f8d873dfc2e7
https://doi.org/10.2961/jlmn.2014.02.0011
https://doi.org/10.2961/jlmn.2014.02.0011
Publikováno v:
Horticultural Research (Japan). 8:143-147
ニガウリの雌性型系統を種子親とした青中長系の一代雑種‘熊研BP1号’を育成し，半促成，早熟および抑制栽培における作型適応性を検討した．本品種は各作型において安定した多雌花
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0d92c853b702f580fdd21079ff5bca4
https://doi.org/10.2503/hrj.8.143
https://doi.org/10.2503/hrj.8.143
Autor:
Toshimasa Morita
Publikováno v:
Physics of Plasmas. 24:083104
Ion acceleration using a laser pulse irradiating a thin disk target is examined using three-dimensional and two-dimensional particle-in-cell simulations. A laser pulse of 620 TW, with an intensity of 5×1021 W/cm2 and a duration of 27 fs, is irradiat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6a4b6b5f9e8273c0112b55687bc5bfd
https://doi.org/10.1063/1.4995265
https://doi.org/10.1063/1.4995265
Autor:
Toshimasa Morita
Proton acceleration by using a 620-TW, 18-J laser pulse of peak intensity of $5\times 10^{21}$ W/cm$^{2}$ irradiating a disk target is examined using three-dimensional particle-in-cell simulations. It is shown that protons are accelerated efficiently
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f5c2471c86c26d9423bc3b738ccc9935
Autor:
Koshichi Nemoto, Toshimasa Morita, Akifumi Yogo, Akira Noda, A. Fukumi, Koichi Ogura, Alexander S. Pirozhkov, Mitsuru Yamagiwa, Masataka Kado, Z. Li, Satoshi Orimo, Yukio Hayashi, Takuya Nayuki, T. Utsumi, Mamiko Nishiuchi, Yuji Oishi, Takashi Fujii, T. Zh. Esirkepov, Akito Sagisaka, M. Mori, Sv Bulanov, Shota Nakamura, Hiroyuki Daido
Publikováno v:
Springer Series in Optical Sciences ISBN: 9780387491172
Intense laser driven thin foil target acts as a double layered coulomb system that produces collimated ions as well as high-order harmonics, hard X-ray, and so on. From this point of view, we observed the electron density distribution of preformed pl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09572ee04bdf822d765749e458fcfaf1
https://doi.org/10.1007/978-0-387-49119-6_36
https://doi.org/10.1007/978-0-387-49119-6_36
Autor:
Toshimasa Morita
Publikováno v:
Physics of Plasmas. 21:053104
Ion acceleration by using a laser pulse irradiating a disk target which includes hydrogen and carbon is examined using three-dimensional particle-in-cell simulations. It is shown that over $200$ MeV protons can be generated by using a $620$TW, $5\tim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::043eeff69396c814e5702aedb0ea5816
https://doi.org/10.1063/1.4876759
https://doi.org/10.1063/1.4876759
Publikováno v:
Physics of Plasmas. 16:033111
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 posit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47bb958d29cfa3f9bb1723ce7b58ac7a
https://doi.org/10.1063/1.3099290
https://doi.org/10.1063/1.3099290
Publikováno v:
Plasma Physics and Controlled Fusion. 51:024002
We investigate theoretically and with three-dimensional particle-in-cell simulations high-quality laser proton acceleration for oblique incidence of the high intensity laser pulse on a double-layer target. The double-layer target is composed of a hig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05e4270c7659c64b9e72361c2ce20586
https://doi.org/10.1088/0741-3335/51/2/024002
https://doi.org/10.1088/0741-3335/51/2/024002
Autor:
Mitsuru Yamagiwa, Shu Nakamura, Toshimasa Morita, Satoshi Orimo, Akifumi Yogo, Daisuke Wakabayashi, A. Fukumi, Alexander S. Pirozhkov, Timur Zh. Esirkepov, Takashi Fujii, Koichi Ogura, Mamiko Nishiuchi, Yukio Hayashi, Takuya Nayuki, Z. Li, Hiroyuki Daido, Yuji Oishi, Koshichi Nemoto, Sergei V. Bulanov, Takayuki Utsumi, Masataka Kado, M. Mori, Akito Sagisaka, Akira Noda
Publikováno v:
Journal of Plasma Physics. 72:1281
We observed a preformed plasma of an aluminum slab target produced by a high-intensity Ti:sapphire laser. The expansion length of the preformed plasma at the electron density of 3 × 10 18 em -3 , which was the detection limit, was around 100μm meas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3e61303f5370d3a4df2be1c528b6f2d
https://doi.org/10.1017/s0022377806005551
https://doi.org/10.1017/s0022377806005551