Effect of tearing modes on the confinement of runaway electrons in Experimental Advanced Superconducting Tokamak

doi:10.1088/1674-1056/acc3f8

中国物理B ›› 2023, Vol. 32 ›› Issue (7): 75204-075204.doi: 10.1088/1674-1056/acc3f8

所属专题： SPECIAL TOPIC — Plasma disruption

Effect of tearing modes on the confinement of runaway electrons in Experimental Advanced Superconducting Tokamak

Rui-Jie Zhou(周瑞杰)^†

Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China

收稿日期:2022-12-29 修回日期:2023-02-27 接受日期:2023-03-14 出版日期:2023-06-15 发布日期:2023-06-28
通讯作者: Rui-Jie Zhou E-mail:rjzhou@ipp.ac.cn
基金资助:
Project partly supported by the Youth Innovation Promotion Association of Chinese Academy of Sciences (Grant No. 2021445), the Science Foundation of Institute of Plasma Physics of Chinese Academy of Sciences (Grant No. DSJJ-2022-05), and partly supported by the Comprehensive Research Facility for Fusion Technology Program of China (Grant No. 2018-000052-73-01-001228).

Effect of tearing modes on the confinement of runaway electrons in Experimental Advanced Superconducting Tokamak

Rui-Jie Zhou(周瑞杰)^†

Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China

Received:2022-12-29 Revised:2023-02-27 Accepted:2023-03-14 Online:2023-06-15 Published:2023-06-28
Contact: Rui-Jie Zhou E-mail:rjzhou@ipp.ac.cn
Supported by:
Project partly supported by the Youth Innovation Promotion Association of Chinese Academy of Sciences (Grant No. 2021445), the Science Foundation of Institute of Plasma Physics of Chinese Academy of Sciences (Grant No. DSJJ-2022-05), and partly supported by the Comprehensive Research Facility for Fusion Technology Program of China (Grant No. 2018-000052-73-01-001228).

摘要/Abstract

摘要： The effect of tearing modes on the confinement of runaway electrons is studied in Experimental Advanced Superconducting Tokamak (EAST). The general tendency of the radial diffusion coefficient of runaway electrons (REs) D_r is derived based on the time response relation between the tearing modes and runaway electrons. The results indicate that, the magnetic fluctuations of tearing modes will enhance the radial diffusion of runaway electrons when the magnetic island is small. Following the increasing of the magnetic fluctuations of the tearing modes, the formed large magnetic island may weaken the radial diffusion of runaway electrons. The results can be important to understand the confinement of runaway electrons when large magnetic islands exist in the plasma.

关键词: runaway electrons, bremsstrahlung emission, tokamak

Abstract: The effect of tearing modes on the confinement of runaway electrons is studied in Experimental Advanced Superconducting Tokamak (EAST). The general tendency of the radial diffusion coefficient of runaway electrons (REs) D_r is derived based on the time response relation between the tearing modes and runaway electrons. The results indicate that, the magnetic fluctuations of tearing modes will enhance the radial diffusion of runaway electrons when the magnetic island is small. Following the increasing of the magnetic fluctuations of the tearing modes, the formed large magnetic island may weaken the radial diffusion of runaway electrons. The results can be important to understand the confinement of runaway electrons when large magnetic islands exist in the plasma.

Key words: runaway electrons, bremsstrahlung emission, tokamak

中图分类号: (X-ray, γ-ray, and particle generation)

52.38.Ph

52.35.Py (Macroinstabilities (hydromagnetic, e.g., kink, fire-hose, mirror, ballooning, tearing, trapped-particle, flute, Rayleigh-Taylor, etc.)) 52.25.Fi (Transport properties)

Rui-Jie Zhou(周瑞杰). Effect of tearing modes on the confinement of runaway electrons in Experimental Advanced Superconducting Tokamak[J]. 中国物理B, 2023, 32(7): 75204-075204.

Rui-Jie Zhou(周瑞杰). Effect of tearing modes on the confinement of runaway electrons in Experimental Advanced Superconducting Tokamak[J]. Chin. Phys. B, 2023, 32(7): 75204-075204.

参考文献

[1] Hender T, Wesley J, Bialek J, Bondeson A, Boozer A, Buttery R, Garofalo A, Goodman T, Granetz R and Gribov Y 2007 Nucl. Fusion 47 S128
[2] Strait E J, Barr J L, Baruzzo M, et al. 2019 Nucl. Fusion 59 112012
[3] Boozer A H 2017 Nucl. Fusion 57 056018
[4] Boozer A H 2019 Plasma Phys. Control. Fusion 61 024002
[5] Loarte A, Riccardo V, Martin-Solís J, Paley J, Huber A, Lehnen M and Contributors J E 2011 Nucl. Fusion 51 073004
[6] Lehnen M, Arnoux G, Hartmann N, Brezinsek S, Devaux S, Huber A, Jachmich S, Kruezi U, Matthews G F, Reux C, Riccardo V, Sieglin B, Stamp M F and de Vries P C 2013 J. Nucl. Mater. 438 S102
[7] Hauff T and Jenko F 2009 Phys. Plasmas 16 102308
[8] Zhou R J, Hu L Q, Li E Z, Xu M, Zhong G Q, Xu L Q and Lin S Y 2013 Phys. Plasmas 20 032511
[9] Mynick H and Strachan J 1981 Phys. Fluids 24 695
[10] Kurzan B, Steuer K and Fussmann G 1995 Phys. Rev. Lett. 75 4626
[11] Entrop I, Cardozo N J L, Jaspers R and Finken K H 1998 Plasma Phys. Control. Fusion 40 1513
[12] Chen Z, Jin W and Zhang Y 2012 J. Korean Phys. Soc. 61 1037
[13] Rechester A and Rosenbluth M 1978 Phys. Rev. Lett. 40 38
[14] Abdullaev S, Finken K, Kudyakov T and Lehnen M 2010 Contrib. Plasma Phys. 50 929
[15] Abdullaev S, Finken K and Forster M 2012 Phys. Plasmas 19 072502
[16] Shi T, Wan B, Shen B, Sun Y, Qian J, Hu L, Gong X, Liu G, Luo Z, Zhong G, Xu L, Zhang J, Lin S, Jie Y, Wang F, Lv B and the EAST Team 2013 Plasma Phys. Control. Fusion 55 055007
[17] Hoppe M, Embréus O, Tinguely R A, Granetz R S, Stahl A and Fülöp T 2018 Nucl. Fusion 58 026032
[18] Tinguely R A, Granetz R S, Hoppe M and Embréus O 2018 Nucl. Fusion 58 076019
[19] Zhou R J, Pankratov I M, Hu L Q, Xu M and Yang J H 2014 Phys. Plasmas 21 063302
[20] Zhang Y K, Zhou R J, Hu L Q, Chen M W, Chao Y and the EAST team 2018 Chin. Phys. B 27 55206
[21] Zhang Y K, Zhou R J, Hu L Q, Chen M W, Chao Y, Zhang J Y and Li P 2021 Chin. Phys. B 30 055206

Effect of tearing modes on the confinement of runaway electrons in Experimental Advanced Superconducting Tokamak

Effect of tearing modes on the confinement of runaway electrons in Experimental Advanced Superconducting Tokamak

RichHTML

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

Metrics

本文评价

推荐阅读 0

[1]	Feng Li(李峰), Zhong-Yong Chen(陈忠勇), Sheng-Guo Xia(夏胜国), Wei Yan(严伟), Wei-Kang Zhang(张维康), Jun-Hui Tang(唐俊辉), You Li(李由), Yu Zhong(钟昱), Jian-Gang Fang(方建港), Fan-Xi Liu(刘凡溪),Gui-Nan Zou(邹癸南), Yin-Long Yu(喻寅龙), Zi-Sen Nie(聂子森), Zhong-He Jiang(江中和),Neng-Chao Wang(王能超), Yong-Hua Ding(丁永华), Yuan Pan(潘垣), and the J-TEXT team. Development of electromagnetic pellet injector for disruption mitigation of tokamak plasma[J]. 中国物理B, 2023, 32(7): 75205-075205.
[2]	Chen-Xi Luo(罗晨曦), Long Zeng(曾龙), Xiang Zhu(朱翔), Tian Tang(唐天), Zhi-Yong Qiu(仇志勇),Shi-Yao Lin(林士耀), Tao Zhang(张涛), Hai-Qing Liu(刘海庆), Tong-Hui Shi(石同辉), Bin Zhang(张斌),Rui Ding(丁锐), Wei Gao(高伟), Min-Rui Wang(王敏锐), Wei Gao(高伟), Ang Ti(提昂), Hai-Lin Zhao(赵海林), Tian-Fu Zhou(周天富), Jin-Ping Qian(钱金平), You-Wen Sun(孙有文), Bo Lv(吕波), Qing Zang(臧庆),Yin-Xian Jie(揭银先), Yun-Feng Liang(梁云峰), and Xiang Gao(高翔). Runaway electron dynamics in Experimental Advanced Superconducting Tokamak helium plasmas[J]. 中国物理B, 2023, 32(7): 75209-075209.
[3]	Wenhui Hu(胡文慧), Jilei Hou(侯吉磊), Zhengping Luo(罗正平), Yao Huang(黄耀), Dalong Chen(陈大龙),Bingjia Xiao(肖炳甲), Qiping Yuan(袁旗平), Yanmin Duan(段艳敏), Jiansheng Hu(胡建生),Guizhong Zuo(左桂忠), and Jiangang Li(李建刚). Prediction of multifaceted asymmetric radiation from the edge movement in density-limit disruptive plasmas on Experimental Advanced Superconducting Tokamak using random forest[J]. 中国物理B, 2023, 32(7): 75211-075211.
[4]	Zongyu Yang(杨宗谕), Yuhang Liu(刘宇航), Xiaobo Zhu(朱晓博), Zhengwei Chen(陈正威), Fan Xia(夏凡), Wulyu Zhong(钟武律), Zhe Gao(高喆), Yipo Zhang(张轶泼), and Yi Liu(刘仪). Recent progress on deep learning-based disruption prediction algorithm in HL-2A tokamak[J]. 中国物理B, 2023, 32(7): 75202-075202.
[5]	Wei Zheng(郑玮), Fengming Xue(薛凤鸣), Zhongyong Chen(陈忠勇), Chengshuo Shen(沈呈硕), Xinkun Ai(艾鑫坤), Yu Zhong(钟昱), Nengchao Wang(王能超), Ming Zhang(张明),Yonghua Ding(丁永华), Zhipeng Chen(陈志鹏), Zhoujun Yang(杨州军), and Yuan Pan(潘垣). Disruption prediction based on fusion feature extractor on J-TEXT[J]. 中国物理B, 2023, 32(7): 75203-075203.
[6]	Sheng-Bo Zhao(赵胜波), Hui-Dong Zhuang(庄会东), Jing-Sheng Yuan(元京升), De-Hao Zhang(张德皓),Li Li(黎立), Long Zeng(曾龙), Da-Long Chen(陈大龙), Song-Tao Mao(毛松涛), Ming Huang(黄明),Gui-Zhong Zuo(左桂忠), and Jian-Sheng Hu(胡建生). Comparison of different noble gas injections by massive gas injection on plasma disruption mitigation on Experimental Advanced Superconducting Tokamak[J]. 中国物理B, 2023, 32(7): 75207-075207.
[7]	Lu Yuan(袁露) and Di Hu(胡地). Drift surface solver for runaway electron current dominant equilibria during the current quench[J]. 中国物理B, 2023, 32(7): 75208-075208.
[8]	Yuxiang Sun(孙宇翔) and Di Hu(胡地). Stability impacts from the current and pressure profile modifications within finite sized island[J]. 中国物理B, 2023, 32(7): 75212-075212.
[9]	Wen-Hao Lin(林文浩), Ji-Quan Li(李继全), J Garcia, and S Mazzi. Gyrokinetic simulation of low-n Alfvénic modes in tokamak HL-2A plasmas[J]. 中国物理B, 2023, 32(2): 25202-025202.
[10]	Yu-Qiang Tao(陶余强), Guo-Sheng Xu(徐国盛), Ling-Yi Meng(孟令义), Rui-Rong Liang(梁瑞荣), Lin Yu(余林), Xiang Liu(刘祥), Ning Yan(颜宁), Qing-Quan Yang(杨清泉), Xin Lin(林新), and Liang Wang(王亮). Study on divertor plasma behavior through sweeping strike point in new lower divertor on EAST[J]. 中国物理B, 2022, 31(6): 65204-065204.
[11]	Dawei Ye(叶大为), Fang Ding(丁芳), Kedong Li(李克栋), Zhenhua Hu(胡振华), Ling Zhang(张凌), Xiahua Chen(陈夏华), Qing Zhang(张青), Pingan Zhao(赵平安), Tao He(贺涛), Lingyi Meng(孟令义), Kaixuan Ye(叶凯萱), Fubin Zhong(钟富彬), Yanmin Duan(段艳敏), Rui Ding(丁锐), Liang Wang(王亮), Guosheng Xu(徐国盛), Guangnan Luo(罗广南), and EAST team. Experimental investigation on divertor tungsten sputtering with neon seeding in ELMy H-mode plasma in EAST tokamak[J]. 中国物理B, 2022, 31(6): 65201-065201.
[12]	Yong-Kuan Zhang(张永宽), Rui-Jie Zhou(周瑞杰), Li-Qun Hu(胡立群), Mei-Wen Chen(陈美文), Yan Chao(晁燕), Jia-Yuan Zhang(张家源), and Pan Li(李磐). Observation of trapped and passing runaway electrons by infrared camera in the EAST tokamak[J]. 中国物理B, 2021, 30(5): 55206-055206.
[13]	朱霄龙, 王丰, 王正汹. Nonlinear simulation of multiple toroidal Alfvén eigenmodes in tokamak plasmas[J]. 中国物理B, 2020, 29(2): 25201-025201.
[14]	刘成岳, 吴斌, 钱金平, 李国强, 侯雅巍, 韦维, 陈美霞, 雷明准, 郭勇. Discharge simulation and volt-second consumption analysis during ramp-up on the CFETR tokamak[J]. 中国物理B, 2020, 29(2): 25202-025202.
[15]	杨翠坤, 朱名盛, 郭文峰. Effect of edge transport barrier on required toroidal field for ignition of elongated tokamak[J]. 中国物理B, 2019, 28(4): 45202-045202.