HT-7上射频波加热时中子辐射行为的研究

钟国强; 胡立群; 王相綦; 李晓玲; 林士耀; 许平; 段艳敏; 毛松涛; 张继忠

doi:10.7498/aps.60.012901

摘要

HT-7超导托卡马克进行DD等离子体放电时,中子的辐射与辅助加热射频波的类型(LHW加热、ICRF加热)及功率密切相关.利用BF3与3He正比计数管组成的快速时间分辨中子注量监测系统,研究了不同类型的射频加热对于中子产生机理及高能离子形成的影响.LHW加热功率较低时,易形成逃逸,产生大量的光中子.特定频率的ICRF(27 MHz,24 MHz)加热时,聚变中子所占份额以及总的中子产额均随波功率的增大而显著增涨.

关键词:

射频加热 /
中子 /
托卡马克

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).

Keywords:

作者及机构信息

(1)中国科学技术大学核科学技术学院,合肥 230029; (2)中国科学技术大学核科学技术学院,合肥 230029;中国科学院等离子体物理研究所,合肥 230031; (3)中国科学院等离子体物理研究所,合肥 230031

基金项目: 国家自然科学基金重点项目(批准号:10935004)和国家自然科学基金(批准号:10775041, 10675124)资助的课题.

Authors and contacts

(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

参考文献

[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

施引文献

[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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