Effect of background fluctuation on velocity diagnostics by Mach probe

Yunxiao WEI (魏云逍); Zhe GAO (高喆)

doi:10.1088/2058-6272/abbb79

Plasma Science and Technology > 2020 > 22(12): 125102. > DOI: 10.1088/2058-6272/abbb79

Yunxiao WEI (魏云逍), Zhe GAO (高喆). Effect of background fluctuation on velocity diagnostics by Mach probe[J]. Plasma Science and Technology, 2020, 22(12): 125102. DOI: 10.1088/2058-6272/abbb79

Citation:

PDF (678 KB)

Effect of background fluctuation on velocity diagnostics by Mach probe

Department of Engineering Physics, Tsinghua University, Beijing 100084, People's Republic of China

Funds: This work was supported by National Natural Science Foundation of China (Nos. 11827810 and 11875177), Inter- national Atomic Energy Agency Research Contract No. 22733 and the National Ten Thousand Talent Program.

More Information

Received Date: August 05, 2020
Revised Date: September 22, 2020
Accepted Date: September 23, 2020

Graphical Abstract

Abstract

Abstract

The effect of background fluctuation on velocity diagnostics is discussed and studied. The kinetic theory of Mach probe (MP) and the theory of BGK mode are combined to evaluate how the measurement of MP is affected by electrostatics fluctuation. It is found that the quantity of speed by the MP model is closer to the effective velocity in the picture of momentum flux rather than the real mean velocity, while, with high fluctuation, the fitting parameter of MP's exponential formula should be corrected.
- velocity diagnostics,
- Mach probe,
- electrostatic fluctuation

FullText(HTML)

References (24)

References

[1]	Bondeson A and Ward D J 1994 Phys. Rev. Lett. 72 2709
[2]	Rice J E et al 2001 Nucl. Fusion 41 277
[3]	Diamond P H et al 2013 Nucl. Fusion 53 104019
[4]	Hender T C et al 2007 Nucl. Fusion 47 S128
[5]	Myra J R et al 2004 Phys. Plasmas 11 1786
[6]	Garbet X et al 2013 Phys. Plasmas 20 072502
[7]	Wang L and Diamond P H 2013 Phys. Rev. Lett. 110 265006
[8]	Chung K S 2012 Plasma Sources Sci. Technol. 21 063001
[9]	Fonck R J et al 1984 Phys. Rev. A 29 3288
[10]	Yu J H et al 2007 J. Nucl. Mater. 363–365 728
[11]	Gao Z, Fisch N J and Qin H 2006 Phys. Plasmas 13 112307
[12]	Chung K S and Hutchinson I H 1988 Phys. Rev. A 38 4721
[13]	Stangeby P C 1984 Phys. Fluids 27 2699
[14]	Hutchinson I H 1988 Phys. Rev. A
[15]	Chung K S 1989 Ion Collection by Probing Objects in Flowing Magnetized Plasmas (Cambridge, MA: Massachusetts Institute of Technology)
[16]	Gulick S L et al 1990 J. Nucl. Mater. 176–177 1059
[17]	Erents S K et al 2000 Plasma Phys. Control. Fusion 42 905
[18]	Wang W H et al 2004 Plasma Phys. Control. Fusion 47 1
[19]	Gonçalves B et al 2006 Phys. Rev. Lett. 96 145001
[20]	Bernstein I B, Greene J M and Kruskal M D 1957 Phys. Rev.108 546
[21]	Schamel H 1972 J. Plasma Phys. 7 1
[22]	Schamel H 1972 Plasma Phys. 14 905
[23]	Surko C M and Slusher R E 1983 Science 221 817
[24]	Suckewer S et al 1979 Phys. Rev. Lett. 43 207

[1]	H R MIRZAEI, R AMROLLAHI. Design, simulation and construction of the Taban tokamak[J]. Plasma Science and Technology, 2018, 20(4): 45103-045103. DOI: 10.1088/2058-6272/aaa669
[2]	Hailong GAO (高海龙), Tao XU (徐涛), Zhongyong CHEN (陈忠勇), Ge ZHUANG (庄革). Plasma equilibrium calculation in J-TEXT tokamak[J]. Plasma Science and Technology, 2017, 19(11): 115101. DOI: 10.1088/2058-6272/aa7f26
[3]	Shanwen ZHANG (张善文), Yuntao SONG (宋云涛), Kun LU (陆坤), Zhongwei WANG (王忠伟), Jianfeng ZHANG (张剑峰), Yongfa QIN (秦永法). Thermal analysis of the cryostat feed through for the ITER Tokamak TF feeder[J]. Plasma Science and Technology, 2017, 19(4): 45601-045601. DOI: 10.1088/2058-6272/aa57ec
[4]	Linghan WAN (万凌寒), Zhoujun YANG (杨州军), Ruobing ZHOU (周若冰), Xiaoming PAN (潘晓明), Chi ZHANG (张弛), Xianli XIE (谢先立), Bowen RUAN (阮博文). Design of Q-band FMCW reflectometry for electron density profile measurement on the Joint TEXT tokamak[J]. Plasma Science and Technology, 2017, 19(2): 25602-025602. DOI: 10.1088/2058-6272/19/2/025602
[5]	KE Xin (柯新), CHEN Zhipeng (陈志鹏), BA Weigang (巴为刚), SHU Shuangbao (舒双宝), GAO Li (高丽), ZHANG Ming (张明), ZHUANG Ge (庄革). The Construction of Plasma Density Feedback Control System on J-TEXT Tokamak[J]. Plasma Science and Technology, 2016, 18(2): 211-216. DOI: 10.1088/1009-0630/18/2/20
[6]	ZHANG Chongyang (张重阳), LIU Ahdi (刘阿娣), LI Hong (李弘), LI Bin (李斌), et al.. X-Mode Frequency Modulated Density Profile Reflectometer on EAST Tokamak[J]. Plasma Science and Technology, 2013, 15(9): 857-862. DOI: 10.1088/1009-0630/15/9/04
[7]	HONG Rongjie (洪荣杰), YANG Zhongshi (杨钟时), NIU Guojian (牛国鉴), LUO Guangnan (罗广南). A Molecular Dynamics Study on the Dust-Plasma/Wall Interactions in the EAST Tokamak[J]. Plasma Science and Technology, 2013, 15(4): 318-322. DOI: 10.1088/1009-0630/15/4/03
[8]	FU Jia (符佳), LI Yingying (李颖颖), SHI Yuejiang (石跃江), WANG Fudi (王福地), ZHANG Wei (张伟), LV Bo (吕波), HUANG Juang (黄娟), WAN Baonian (万宝年), ZHOU Qian (周倩). Spectroscopic Measurements of Impurity Spectra on the EAST Tokamak[J]. Plasma Science and Technology, 2012, 14(12): 1048-1053. DOI: 10.1088/1009-0630/14/12/03
[9]	LI Li(李莉), LIU Yue (刘悦), XU Xinyang(许欣洋), XIA Xinnian(夏新念). The Effect of Equilibrium Current Profiles on MHD Instabilities in Tokamaks[J]. Plasma Science and Technology, 2012, 14(1): 14-19. DOI: 10.1088/1009-0630/14/1/04
[10]	GUO Wei, WANG Shaojie, LI Jiangang. Vacuum Poloidal Magnetic Field of Tokamak in Alternating-Current Operation[J]. Plasma Science and Technology, 2010, 12(6): 657-660.

Cited By

Cited by

Periodical cited type(1)

1.	Hao, G., Xu, J., Sun, Y. et al. Summary of the 11th Conference on Magnetic Confined Fusion Theory and Simulation. Plasma Science and Technology, 2024, 26(10): 101001. DOI:10.1088/2058-6272/ad5d8a

1.	Hao, G., Xu, J., Sun, Y. et al. Summary of the 11th Conference on Magnetic Confined Fusion Theory and Simulation. Plasma Science and Technology, 2024, 26(10): 101001. DOI:10.1088/2058-6272/ad5d8a

Other cited types(0)

Get Citation

PDF

XML

Article views (261) PDF downloads (351) Cited by(1)

Turn off MathJax

Article Contents

Abstract

References

Effect of background fluctuation on velocity diagnostics by Mach probe