Sawtooth Activities During Impurity Injection by Laser Blow-off in HL-2A

被引：0
|
作者：
邓玮 [1 ]
刘仪 [1 ]
崔正英 [1 ]
董云波 [1 ]
黄渊 [1 ]
张鹏 [1 ]
孙平 [1 ]
傅炳忠 [1 ]
机构：
[1] Southwestern Institute of Physics,Chengdu 610041,China
来源：
Plasma Science and Technology | 2007年 / 04期
基金：
中国国家自然科学基金;
关键词：
impurity injection; tomography; sawtooth activity;
D O I：
暂无
中图分类号：
O532.26 [];
学科分类号：
摘要：
In order to study impurity transport and their progression in the plasma,smallamount of high-Z impurities were injected into HL-2A ohmic heated plasmas by laser blow-off andtraced with good spatial temporal resolution by a soft X-ray camera.An analysis of the evolutionof the impurities’ radiation distribution in the plasma revealed that impurity transport in thecentral region was profoundly different from that outside of it.It was found that the sawteethtended to be inverted on the central soft X-ray chord signals after the impurity injection and thesoft X-ray profiles exhibited discontinuities during the movement of the impurities in the plasmacentral region.Detailed 2D visualization of the evolution of impurities’ radiation using computertomography has provided further understanding of the properties of impurity transport in theHL-2A plasma.
引用
收藏
页码：411 / 416
页数：6
相关论文
共 50 条
  • [41] A NEW PELLET INJECTION SYSTEM FOR HL-2A
    Xu, H. B.
    Zhu, G. L.
    Liu, D. Q.
    Vinyar, I.
    Wang, M. J.
    Lukin, A.
    FUSION SCIENCE AND TECHNOLOGY, 2012, 62 (02) : 316 - 321
  • [42] MEASURING SET-UP FOR INVESTIGATION OF THE LASER BLOW-OFF PROCESSES
    BAKOS, JS
    BURGER, G
    IGNACZ, PN
    SZIGETI, J
    KOVACS, J
    JOURNAL OF PHYSICS E-SCIENTIFIC INSTRUMENTS, 1988, 21 (11): : 1095 - 1097
  • [43] Characterization of the flame blow-off conditions in a laminar boundary layer with hydrogen injection
    Volchkov, Eduard P.
    Lukashov, Vladimir V.
    Terekhov, Vladimir V.
    Hanjalic, Kemal
    COMBUSTION AND FLAME, 2013, 160 (10) : 1999 - 2008
  • [44] LASER BLOW-OFF PLASMA PROPAGATING IN LOW-PRESSURE GAS
    BAKOS, JS
    IGNACZ, PN
    SZIGETI, J
    KOVACS, J
    APPLIED PHYSICS LETTERS, 1987, 51 (10) : 734 - 736
  • [45] Edge impurity transport study in the stochastic layer of LHD and the scrape-off layer of HL-2A
    Kobayashi, M.
    Morita, S.
    Dong, C. F.
    Cui, Z. Y.
    Pan, Y. D.
    Gao, Y. D.
    Zhou, H. Y.
    Feng, Y.
    Masuzaki, S.
    Goto, M.
    Morisaki, T.
    Yamada, H.
    Cheng, J.
    Sun, P.
    Yang, Q. W.
    Duan, X. R.
    NUCLEAR FUSION, 2013, 53 (03)
  • [46] Preliminary analysis of impurity transport in HL-2A ohmic discharges
    Chen Wei
    Cui Zheng-Ying
    Sun Ping
    Huang Yuan
    Zhang Peng
    Deng Wei
    Pan Yu-Donga
    Shi Zhong-Bing
    Zhou Yan
    Zheng Yong-Zhen
    Yang Qing-Wei
    CHINESE PHYSICS, 2007, 16 (11): : 3451 - 3457
  • [47] LAMINAR BOUNDARY-LAYER BLOW-OFF .2.
    KASSOY, DR
    JOURNAL OF FLUID MECHANICS, 1971, 48 (JUL28) : 209 - &
  • [48] Deeply understanding particle flux rollover with argon impurity injection and pumping effects in HL-2A by SOLPS
    Du, Hailong
    Zheng, Guoyao
    Bonnin, Xavier
    Li, Jiaxian
    Xue, Lei
    Sang, Chaofeng
    Wang, Dezhen
    FUSION ENGINEERING AND DESIGN, 2020, 156
  • [49] Impurity Measured by VUV Spectrometer and OMA on HL-2A Tokamak
    崔正英
    王全明
    董贾福
    孙平
    李伟
    王恩耀
    Plasma Science & Technology, 2004, (04) : 2359 - 2363
  • [50] Laser Diagnostics on the Effect of Wall Cooling Air on the Lean Blow-Off Characteristics
    Wang J.
    Su S.
    Su L.
    Cai X.
    Wang J.
    Huang Z.
    Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University, 2024, 58 (04): : 64 - 74
12345