Empirical Scaling Laws of Neutral Beam Injection Power in HL-2A Tokamak

  • Received Date: September 05, 2014
  • Revised Date: April 20, 2015
  • Published Date: April 30, 2015
  • We present an experimental method to obtain neutral beam injection (NBI) power scaling laws with operating parameters of the NBI system on HL-2A, including the beam divergence angle, the beam power transmission efficiency, the neutralization efficiency and so on. With the empirical scaling laws, the estimating power can be obtained in every shot of experiment on time, therefore the important parameters such as the energy confinement time can be obtained precisely. The simulation results by the tokamak simulation code (TSC) show that the evolution of the plasma parameters is in good agreement with the experimental results by using the NBI power from the empirical scaling law.
  • Article Text

  • [1] Lei G J, Zhong G W et al 2008 The 35th EPS Conference on Plasma Phys. (Crete Greece 9–13 June 2008)
    [2] Lei G J, Cao J Y, Rao J et al 2009 The 36th Eur. Phys. Soc. Conf. Plasma Phys. (Sofia Bulgaria June 29–July 3 2009) p 5148
    [3] Duan X R, Ding X T, Dong J Q et al 2009 Nucl. Fusion 49 104012
    [4] Duan X R, Dong J Q, Yan L W et al 2010 Nucl. Fusion 50 095011
    [5] Cao J Y, Tang L X and Luo C W 2007 GF-A0113420 (Chengdu: Southwest Institute of Physics) (in Chinese)
    [6] Kamperschroer J H, Grisham L R, Dudek L E, Gammel G M, Johnson G A, Kugel H W, Lagin L, O'Connor T E, Shah P A, Sichta P, Stevenson T N, von Halle A, Williams M D and Bastasz R 1989 Rev. Sci. Instrum. 60 3377
    [7] Liu H, Cao J Y, Jiang S F, Luo C W, Tang L X, Lei G J, Rao J and Li B 2009 Plasma Sci. Technol. 11 613
  • Related Articles

    [1]M. A. Ismail, S. J. Tan, N. S. Shahabuddin, S. W. Harun, H. Arof, H. Ahmad. Performance Comparison of Mode-Locked Erbium-Doped Fiber Laser with Nonlinear Polarization Rotation and Saturable Absorber Approaches [J]. Chin. Phys. Lett., 2012, 29(5): 054216. doi: 10.1088/0256-307X/29/5/054216
    [2]ZHAO Guang-Zhen, XIAO Xiao-Sheng, MEI Jia-Wei, YANG Chang-Xi. Multiple Dissipative Solitons in a Long-Cavity Normal-Dispersion Mode-Locked Yb-Doped Fiber Laser [J]. Chin. Phys. Lett., 2012, 29(3): 034207. doi: 10.1088/0256-307X/29/3/034207
    [3]CHEN Jiong, JIA Dong-Fang, WU Yong-Chao, WANG Chang-Le, WANG Zhao-Ying, YANG Tian-Xin. Passively Mode-Locked Fiber Laser with a Sub-Megahertz Repetition Rate [J]. Chin. Phys. Lett., 2011, 28(11): 114203. doi: 10.1088/0256-307X/28/11/114203
    [4]HE Jin-Ping, LIANG Xiao-Yan, LI Jin-Feng, ZHENG Li-He, SU Liang-Bi, XU Jun. Diode-Pumped Soliton and Non-Soliton Mode-Locked Yb:GYSO Lasers [J]. Chin. Phys. Lett., 2011, 28(8): 084204. doi: 10.1088/0256-307X/28/8/084204
    [5]XUE Yu-Hao, HE Bing, ZHOU Jun, LI Zhen, FAN Yuan-Yuan, QI Yun-Feng, LIU Chi, YUAN Zhi-Jun, ZHANG Hai-Bo, LOU Qi-Hong. High Power Passive Phase Locking of Four Yb-Doped Fiber Amplifiers by an All-Optical Feedback Loop [J]. Chin. Phys. Lett., 2011, 28(5): 054212. doi: 10.1088/0256-307X/28/5/054212
    [6]ZHOU Bin-Bin, WEI Zhi-Yi, LI De-Hua, TENG Hao, Bourdet G. L.. Generation of 170-fs Laser Pulses at 1053nm by a Passively Mode-Locked Yb:YAG Laser [J]. Chin. Phys. Lett., 2009, 26(5): 054208. doi: 10.1088/0256-307X/26/5/054208
    [7]LUO Zhi-Chao, XU Wen-Cheng, SONG Chuang-Xing, LUO Ai-Ping, GAO Yu-Xin, XU Shan-Hui, YANG Zhong-Min, CHEN Wei-Cheng. Self-Starting Passively Mode-Locked Er3+/Yb3+ Codoped Phosphate Glass All-Fibre Ring Laser [J]. Chin. Phys. Lett., 2008, 25(12): 4280-4282.
    [8]XU Shi-Xiang, LI Wen-Xue, HAO Qiang, ZHAI Hui, ZENG He-Ping. Efficient Laser-Diode End-Pumped Passively Q-Switched Mode-Locked Yb:LYSO Laser Based on SESAM [J]. Chin. Phys. Lett., 2008, 25(2): 548-551.
    [9]TU Cheng-Hou, LI Zhen, LEI Ting, LI Yong-Nan, GUO Wen-Gang, WEI Dai, ZHU Hui, ZHANG Shuang-Gen, LU Fu-Yun. Pulse Evolution Characteristics in Self-Similar Mode-locked Fibre Laser [J]. Chin. Phys. Lett., 2007, 24(11): 3175-3178.
    [10]YANG Ling-Zhen, WANG Yun-Cai, CHEN Guo-Fu, WANG Yi-Shan, ZHAOWei. Harmonic Mode-Locked Ytterbium-Doped Fibre Ring Laser [J]. Chin. Phys. Lett., 2007, 24(4): 944-946.

Catalog

    Article views (0) PDF downloads (615) Cited by()

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return