Refueling for Steady-State Plasma by Repetitive Pellet Injection in Large Helical Device

被引：0
|
作者：
H.Yamada
R.Sakamoto
I.Viniar
M.Goto
K.Kikuchi
A.Lukin
S.Masuzaki
J.Miyazawa
S.Morita
Y.Oda
S.Sudo
K.Tanaka
机构：
[1] Japan
[2] Kobe
[3] Ltd.
[4] Mitsubishi Heavy Industries
[5] Moscow
[6] National Institute for Fusion Science
[7] PELIN Laboratory
[8] Russia
[9] Toki
来源：
Plasma Science and Technology | 2004年 / 03期
关键词：
cryo-cooler; screw extruder; solid hydrogen;
D O I：
暂无
中图分类号：
O531 [产生];
学科分类号：
070204 ;
摘要：
A repetitive pellet injector has been developed for investigation of refueling issues towards the steady-state operation in Large Helical Device (LHD). Continuous operation of more than 10000 pellet launching at 10 Hz has been demonstrated. The maximum repeating rate is 11 Hz. No technical constraint for longer operation has been found. The reliability of pellet launch has exceeded 99.9%. The initial application to the NBI-heated plasmas has been successful in the last experimental campaign of LHD. Although the pulse length is limited by the operational constraint of NBI, the plasma with a density of 8×1019 m-3 has been sustained for 2 s by the pellet injection at 10 Hz. A prospect for the future experiment is discussed on the basis of the initial result.
引用
收藏
页码：2275 / 2280
页数：6
相关论文
共 50 条
  • [1] Refueling for steady-state plasma by repetitive pellet injection in large helical device
    Yamada, H
    Sakamoto, R
    Viniar, I
    Goto, M
    Kikuchi, K
    Lukin, A
    Masuzaki, S
    Miyazawa, J
    Morita, S
    Oda, Y
    Sudo, S
    Tanaka, K
    [J]. PLASMA SCIENCE & TECHNOLOGY, 2004, 6 (03): : 2275 - 2280
  • [2] Repetitive fueling pellet injection in large helical device
    Yamada, H
    Sakamoto, R
    Viniar, I
    Oda, Y
    Kikuchi, K
    Lukin, A
    Skoblikov, S
    Umov, A
    Takaura, K
    Onozuka, M
    Kato, S
    Sudo, S
    [J]. FUSION ENGINEERING AND DESIGN, 2003, 69 (1-4) : 11 - 14
  • [3] Pneumatic repetitive injector with a porous pellet generator for steady-state plasma fueling
    Viniar, I
    Sudo, S
    [J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 2000, 71 (02): : 399 - 402
  • [4] Advanced Helical Plasma Research towards a Steady-State Fusion Reactor by Deuterium Experiments in Large Helical Device
    Takeiri, Yasuhiko
    [J]. ATOMS, 2018, 6 (04):
  • [5] Improvement of Plasma Performance Using Carbon Pellet Injection in Large Helical Device
    Morita, Shigeru
    Goto, Motoshi
    Nagaoka, Kenichi
    Dong, Chunfeng
    Zhou, Hangyu
    Cui, Zhengying
    Dong, Yunbo
    Gao, Xiang
    Ida, Katsumi
    Ikeda, Katsunori
    Kaneko, Osamu
    Lin, Shiyao
    Nakano, Haruhisa
    Osakabe, Masaki
    Sakamoto, Ryuichi
    Takeiri, Yasuhiko
    Ti, Ang
    Tsumori, Katsuyoshi
    Yoshinuma, Mikiro
    [J]. PLASMA SCIENCE & TECHNOLOGY, 2011, 13 (03): : 290 - 296
  • [6] Control of a steady-state operation using ICRF heating in the large helical device
    Kasahara, H.
    Seki, T.
    Saito, K.
    Kumazawa, R.
    Kubo, S.
    Shimozuma, T.
    Yoshimura, Y.
    Igami, H.
    Notake, T.
    Nakamura, Y.
    Miyazawa, J.
    Tanaka, K.
    Tokuzawa, T.
    Shimpo, F.
    Nomura, G.
    Yokota, M.
    Takahashi, C.
    Komori, A.
    Motojima, O.
    Mutoh, T.
    [J]. FUSION ENGINEERING AND DESIGN, 2008, 83 (2-3) : 253 - 255
  • [7] High-power and Steady-state Operation of ICRF Heating in the Large Helical Device
    Mutoh, T.
    Seki, T.
    Saito, K.
    Kasahara, H.
    Seki, R.
    Kamio, S.
    Kumazawa, R.
    Kubo, S.
    Shimozuma, T.
    Yoshimura, Y.
    Igami, H.
    Takahashi, H.
    Ii, T.
    Makino, R.
    Nagaoka, K.
    Nomura, G.
    Shinya, T.
    [J]. RADIOFREQUENCY POWER IN PLASMAS, 2015, 1689
  • [8] Development of steady-state operation using ion cyclotron heating in the Large Helical Device
    Kasahara, H.
    Seki, T.
    Saito, K.
    Seki, R.
    Kumazawa, R.
    Yoshimura, Y.
    Kubo, S.
    Shimozuma, T.
    Igami, H.
    Takahashi, H.
    Nagasaki, K.
    Ueda, Y.
    Tokitani, M.
    Ashikawa, N.
    Shoji, M.
    Wakatsuki, T.
    Kamio, S.
    Tsuchiya, H.
    Yoshimura, S.
    Tamura, N.
    Suzuki, C.
    Yamada, H.
    Mutoh, T.
    [J]. PHYSICS OF PLASMAS, 2014, 21 (06)
  • [9] Non-linear magnetohydrodynamic simulations of plasma instabilities from pellet injection in Large Helical Device plasma
    Futatani, Shimpei
    Suzuki, Yasuhiro
    [J]. PLASMA PHYSICS AND CONTROLLED FUSION, 2019, 61 (09)
  • [10] Repetitive pellet fuelling for high-density/steady-state operation on LHD
    Sakamoto, R.
    Yamada, H.
    Takeiri, Y.
    Narihara, K.
    Tokuzawa, T.
    Suzuki, H.
    Masuzaki, S.
    Sakakibara, S.
    Morita, S.
    Goto, M.
    Peterson, B. J.
    Matsuoka, K.
    Ohyabu, N.
    Komori, A.
    Motojima, O.
    [J]. NUCLEAR FUSION, 2006, 46 (11) : 884 - 889
12345