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Study of neutron radiation behavior for RF heating on HT-7

Hu Li-Qun Li Xiao-Ling Lin Shi-Yao Xu Ping Duan Yan-Min Mao Song-Tao Zhang Ji-Zhong Wang Xiang-Qi Zhong Guo-Qiang

Study of neutron radiation behavior for RF heating on HT-7

Hu Li-Qun, Li Xiao-Ling, Lin Shi-Yao, Xu Ping, Duan Yan-Min, Mao Song-Tao, Zhang Ji-Zhong, Wang Xiang-Qi, Zhong Guo-Qiang
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  • Neutron radiation was specially correlated with the type and the power of the radio frequency (RF) heating for deuterium plasma on HT-7 tokamak. We hare researched the production mechanism of the fast neutron under different RF heating conditions by the fast time-resolved neutron flux measurement system make up of BF3 and 3He proportional counters. Lower power of LHW heating was apt to bring abont runaway discharge and produce a mass of photoneutrons. The rate of fusion neutron and the total neutron yield will rapidly increase with the ion cyclotron resonance heating at the special frequencies of (27 MHz and 24 MHz).
    • Funds:
    [1]

    Shi B R 1999 Magnetic Confinement Fusion Principles and Practice (Beijing: Atomic Energy Press) p188 (in Chinese) [石秉仁 1999 磁约束聚变与实践 (北京:原子能出版社)第188页]

    [2]

    Krasilnikov A V, Sasao M, Kaschuck Yu A, Nishitani T 2005 Nucl. Fusion 45 1503

    [3]

    Wan B N, Shi Y J, Xu G S, Gong X Z 2004 Nucl. Fusion 44 400

    [4]

    Zhong G Q, Hu L Q, Zhu Y B, Lin S Y, Chen J Q, Xu P, Duan Y M, Lu H Y 2009 Acta Phys. Sin. 58 3262 (in Chinese) [钟国强、胡立群、朱玉宝、林士耀、陈珏铨、许 平、段艳敏、卢洪伟 2009 物理学报 58 3262]

    [5]

    Yang J W 1996 Nucl. Fusion Plasma Phys. 16 24 (in Chinese) [杨进蔚 1996 核聚变与等离子体物理16 24]

    [6]

    Bosch H S, Hale G M 1992 Nucl. Fusion 32 611

    [7]

    Yang J W, Song X Y, Li X, Zhang W 2005 Acta Phys. Sin. 54 1648 (in Chinese) [杨进蔚、宋先瑛、李 旭、张 炜 2005 物理学报 54 1648]

    [8]

    Chen Z Y, Wan B N, Shi Y J, Hu L Q, Xu H D, Li G C 2005 Chin. Phys. Lett. 22 900

    [9]

    Yang J W, Zhang G Y, Liang W X, Zeng Q X, Gong D F, Shi M L, Lu J, Feng B S 1993 Nucl. Fusion Plasma Phys. 13 32 (in Chinese) [杨进蔚、张光阳、梁文学、曾庆希、龚定夫、施明亮、卢 杰、冯北生 1993 核聚变与等离子体物理 13 32]

    [10]

    Anderson D, Core W, Eriksson L G 1987 Nucl. Fusion 27 911

  • [1]

    Shi B R 1999 Magnetic Confinement Fusion Principles and Practice (Beijing: Atomic Energy Press) p188 (in Chinese) [石秉仁 1999 磁约束聚变与实践 (北京:原子能出版社)第188页]

    [2]

    Krasilnikov A V, Sasao M, Kaschuck Yu A, Nishitani T 2005 Nucl. Fusion 45 1503

    [3]

    Wan B N, Shi Y J, Xu G S, Gong X Z 2004 Nucl. Fusion 44 400

    [4]

    Zhong G Q, Hu L Q, Zhu Y B, Lin S Y, Chen J Q, Xu P, Duan Y M, Lu H Y 2009 Acta Phys. Sin. 58 3262 (in Chinese) [钟国强、胡立群、朱玉宝、林士耀、陈珏铨、许 平、段艳敏、卢洪伟 2009 物理学报 58 3262]

    [5]

    Yang J W 1996 Nucl. Fusion Plasma Phys. 16 24 (in Chinese) [杨进蔚 1996 核聚变与等离子体物理16 24]

    [6]

    Bosch H S, Hale G M 1992 Nucl. Fusion 32 611

    [7]

    Yang J W, Song X Y, Li X, Zhang W 2005 Acta Phys. Sin. 54 1648 (in Chinese) [杨进蔚、宋先瑛、李 旭、张 炜 2005 物理学报 54 1648]

    [8]

    Chen Z Y, Wan B N, Shi Y J, Hu L Q, Xu H D, Li G C 2005 Chin. Phys. Lett. 22 900

    [9]

    Yang J W, Zhang G Y, Liang W X, Zeng Q X, Gong D F, Shi M L, Lu J, Feng B S 1993 Nucl. Fusion Plasma Phys. 13 32 (in Chinese) [杨进蔚、张光阳、梁文学、曾庆希、龚定夫、施明亮、卢 杰、冯北生 1993 核聚变与等离子体物理 13 32]

    [10]

    Anderson D, Core W, Eriksson L G 1987 Nucl. Fusion 27 911

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  • Received Date:  08 January 2010
  • Accepted Date:  03 March 2010
  • Published Online:  15 January 2011

Study of neutron radiation behavior for RF heating on HT-7

  • 1. (1)Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China; (2)School of Nuclear Science and Technology, University of Science and Technology of China, Hefei 230029,China; (3)School of Nuclear Science and Technology, University of Science and Technology of China, Hefei 230029,China;Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China

Abstract: Neutron radiation was specially correlated with the type and the power of the radio frequency (RF) heating for deuterium plasma on HT-7 tokamak. We hare researched the production mechanism of the fast neutron under different RF heating conditions by the fast time-resolved neutron flux measurement system make up of BF3 and 3He proportional counters. Lower power of LHW heating was apt to bring abont runaway discharge and produce a mass of photoneutrons. The rate of fusion neutron and the total neutron yield will rapidly increase with the ion cyclotron resonance heating at the special frequencies of (27 MHz and 24 MHz).

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