| PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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Upgrade of the magnetic diagnostic system for restart of HT-6M operation |
| Li-Xing Chen(陈力行)1,2, Biao Shen(沈飊)1, Da-Long Chen(陈大龙)1,†, Zheng-Ping Luo(罗正平)1,‡, Zu-Chao Zhang(张祖超)1, Ying Chen(陈颖)1, Yong Wang(王勇)1, and Jin-Ping Qian(钱金平)1 |
1 Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230026, China;
2 University of Science and Technology of China, Hefei 230026, China |
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Abstract The HT-6M tokamak at the Thailand Institute of Nuclear Technology has been restarted. In order to ensure the smooth breakdown of plasma and obtain plasma discharge parameters, optimization of the poloidal field coils and upgrade of the magnetic diagnostics are described in this article. A perfect null field (stray field in the main chamber < 10 G) is obtained using an ohmic heating field. To obtain important information about the plasma, an external magnetic diagnostics system is designed and calibrated, including a Rogowski coil (measuring plasma current), a magnetic probe (measuring external field), diamagnetic loops (measuring βp) and so on. In order to realize high-frequency signal measurement and transmission, a series of frequency responses with the magnetic probe and transmission line are tested. Later, to verify the null field, a fitting code is developed to reconstruct the stray field in the vacuum chamber based on magnetic probe measurements and flux loops. The results show that the error is within 1.5%. This indicates the accuracy of the magnetic measurement system and ensures the preparation for the breakdown of plasma.
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Received: 30 May 2022
Revised: 04 July 2022
Accepted manuscript online: 08 July 2022
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PACS:
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52.55.Fa
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(Tokamaks, spherical tokamaks)
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52.70.Ds
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(Electric and magnetic measurements)
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52.80.Pi
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(High-frequency and RF discharges)
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| Fund: Project supported by the National MCF Energy Research and Development Program of China (Grant Nos. 2018YFE0302100 and 2018YFE0301105), the National Natural Science Foundation of China (Grant No. 11875291), and the Comprehensive Research Facility for Fusion Technology Program of China (Grant No. 2018-000052-73-01-001228). |
Corresponding Authors:
Da-Long Chen, Zheng-Ping Luo
E-mail: cdalong@ipp.ac.cn;zhpluo@ipp.ac.cn
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Cite this article:
Li-Xing Chen(陈力行), Biao Shen(沈飊), Da-Long Chen(陈大龙), Zheng-Ping Luo(罗正平),Zu-Chao Zhang(张祖超), Ying Chen(陈颖), Yong Wang(王勇), and Jin-Ping Qian(钱金平) Upgrade of the magnetic diagnostic system for restart of HT-6M operation 2022 Chin. Phys. B 31 125203
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[1] Qing Y W 2011 2011 Experimental Physics Foundations of the Tokamak (1st Edn.) (Bei Jing: Atomic Energy Publishing House) p. 18
[2] Wang L 2018 2018 Experimental Physical of Magnetic Confinement Plasmas (1st Edn.) (Beijing: China Science Publishing & Media Ltd.) p. 81
[3] Shen B, Luo J R, Wan B N and Wang H Z 2003 Plasma Sci. Technol. 5 1785
[4] Chen D L, Robert G, Shen B, Yang F, Qian J P and Xiao B J 2015 Chin. Phys. B 24 025205
[5] Strait E J 2006 Rev. Sci. Instrum. 77 023502
[6] Lao L L, John H S, Stambaugh R D, Kellman A G and Pfeiffer W 1985 Nucl. Fusion 25 1611
[7] Luo Z P, Xiao B J, Zhu Y F and Yang F 2010 Plasma Sci. Technol. 12 412
[8] Qian J P, Wan B N, Shen B, Lao L L, Xiao B J, Li J G, Lin S Y and Luo Z P 2009 Chin. Phys. B 18 1172
[9] Qing Y W 2011 Experimental Physics Foundations of the Tokamak (1st Edn.) (Bei Jing: Atomic Energy Publishing House) p. 256
[10] Chen D L, Shen B, Qian J P, Sun Y W, Liu G J, Shi T H, Zhuang H D and Xiao B J 2014 Chin. Phys. B 23 065205
[11] Liu G J, Wan B N, Sun Y W, Xiao B J, Wang Y, Luo Z P, Qian J P and Liu D M 2013 Rev. Sci. Instrum. 84 073502
[12] Shen B, Wan B N and Zhang X Q 2004 Fusion Eng. Des. 70 311
[13] Jia T Q, He K Y, Chen D L, Qian J P, Gu X, Shen B, Sun Y W, Shi T H, Wang Y, Zhang B and Gong X Z 2022 Fusion Eng. Des. 177 113091
[14] Smyte W 1950 Static and Dynamic Electricity (2rd Edn.) (New York: McGraw-Hill) p. 48
[15] Equipe T F R 1978 Nucl. Fusion 18 647
[16] Mukhovatov V S and Shafranov V D 1971 Nucl. Fusion 11 605
[17] King J D, Strait E J, Boivin R L, Taussig D, Watkins M G, Hanson J M, Logan N C, Paz-Soldan C, Pace D C, Shiraki D, Lanctot M J, La Haye R J, Lao L L, Battaglia D J, Sontag A C, Haskey S R and Bak J G 2014 Rev. Sci. Instrum. 85 083503
[18] Dai X J, Shen B and Liu G J 2010 Nuclear Fusion and Plasma Physics 30 360 (in Chinese)
[19] Sun J Y, Shen B, Liu G J, Sun Y W, Qian J P, Li S, Xiao B J, Chen D L and Shi T H 2014 Nuclear Fusion and Plasma Physics 34 265 (in Chinese)
[20] Strait E J 1996 Rev. Sci. Instrum. 67 2538
[21] Dai X J, Shen B, Jiang L and Liu G J 2011 Nuclear Fusion and Plasma Physics 31 5 (in Chinese)
[22] Wu Y C, Wang Y, Liu D M, Ji Z S and Luo J R 2009 Atomic Energy Science and Technology 43 12
[23] Qian J P, Wan B N, Lao L L, Shen B, Sabbagh S A, Sun Y W, Liu D M, Xiao B J, Ren Q L and Luo J R 2009 Plasma Sci. Technol. 11 142
[24] Liu G J, Wan B N, Sun Y W, Liu Y Q, Guo W F, Hao G Z, Ding S Y, Shen B, Xiao B J and Qian J P 2014 Chin. Phys. B 23 075205 |
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