Zobrazeno 1 - 10
of 253
pro vyhledávání: '"N. Yugami"'
Autor:
T. Kobayashi, T. Asai, T. P. Otsuka, N. Yugami, H. Yamanaka, S. Endo, T. Fukuda, K. Yamamoto, T. Nagami, Y. Yoshida
Publikováno v:
Japanese Journal of Applied Physics. 58:070909
Autor:
K. Mishra, Yoshihiko Nagashima, Akihide Fujisawa, Hisatoshi Nakashima, Kazuo Nakamura, Hideki Zushi, Hiroshi Idei, Yuichi Takase, Kazutoshi Tokunaga, Atsushi Fukuyama, Osamu Watanabe, Shoji Kawasaki, A. Kuzmin, Makoto Hasegawa, Takumi Onchi, Kazuaki Hanada, A. Higashijima, Hideo Watanabe, N. Yugami, Yueng Kay Martin Peng, Nobuaki Yoshida, T. Honda, Osamu Mitarai
Publikováno v:
Journal of Nuclear Materials. 463:1084-1086
Global particle balance in non-inductive long-duration plasma on QUEST has been investigated. Approximately 70% of the fuel hydrogen (H) was retained in the wall and then was almost exhausted just after the discharge. The global recycling ratio (Rg),
Publikováno v:
2013 Abstracts IEEE International Conference on Plasma Science (ICOPS).
Publikováno v:
International Journal of Infrared and Millimeter Waves. 15:683-694
The “v p ×B” effect is introduced into a traveling wave amplifier trying to increase its output power and efficiency. The numerical calculating results show that by introducing an tapered static magnetic field into a traditional traveling wave a
Publikováno v:
AIP Conference Proceedings.
In the middle of 1980th, the VpxB concept for accelerating electrons are found by Nishida et al, with the use of plasma wave excited by high power microwave in the interaction with weakly magnetized plasma. This acceleration concept was called “Sur
Autor:
H. Parchamy, N. Yugami
Publikováno v:
AIP Conference Proceedings.
The radiation from the interaction between the ultra‐short andultra‐high power laser(0.5 TW, 100 fs)and the weakly magnetized plasmais studied. We observed the short pulse radiation (200 ps) in themicrowave region(up to 100 GHz). Two kind of radi
Autor:
H. Nakanishi, N. Yugami, T. Kawakubo, R. Kodama, Y. Sakawa, H. Shiraga, Yoneyoshi Kitagawa, T. Shoji, Y. Kato, Kazuhisa Nakajima, T. Tajima, T. Zhang, A. Ogata, K. Suzuki, Y. Nishida
Publikováno v:
Proceedings of International Conference on Particle Accelerators.
The peak power of 30 TW and the pulse width of 1 ps produced by the Nd:glass laser system is capable of creating a highly-ionized plasma of a moderate density gas on an ultrafast time scale and generating a large amplitude plasma wave with an acceler
Autor:
N. Yugami, T. Ueda, H. Nakanishi, Y. Yoshida, A. Ogata, T. Kobayashi, Seiichi Tagawa, H. Shibata, M. Arinaga, Kazuhisa Nakajima, T. Kawakubo, Y. Nishida, D. Whittum
Publikováno v:
Proceedings of International Conference on Particle Accelerators.
A collinear wakefield test facility using two linacs with a common test section is constructed. Beams from one linac excite wakefields in a test medium such as a plasma, while beams from the other linac witness the wakefields. The time interval betwe
Autor:
Y. Yoshida, Takahiro Kozawa, T. Kawakubo, T. Kobayashi, H. Shibata, Mitsuru Uesaka, Toru Ueda, H. Nakanishi, A. Ogata, N. Yugami, Kenzo Miya, D. Whittum, M. Arinaga, Y. Nishida, Kunihisa Nakajima
Publikováno v:
Proceedings Particle Accelerator Conference.
Experiments of plasma wakefield acceleration driven by narrow bunches were performed in the overdense regime at the University of Tokyo. Changes of energy and beam size of the test bunches caused by the driven bunches were observed. An acceleration g
Autor:
Y. Yoshida, H. Nakanishi, A. Ogata, Toru Ueda, Mitsuru Uesaka, T. Kobayashi, N. Yugami, T. Kawakubo, H. Shibata, T. Kozawa, Y. Nishida, M. Arinaga, Kunihisa Nakajima
Publikováno v:
AIP Conference Proceedings.
Electron acceleration by plasma wakefields driven by multiple bunches was experimentally studied. It is expected that a wakefield driven by each bunch builds up to result in a large acceleration gradient. However, the build-up of wakefields was not i