| PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
Prev
Next
|
|
|
Construction of an Hα diagnostic system and its application to determine neutral hydrogen densities on the Keda Torus eXperiment |
| Junfeng Zhu(朱军锋)1, Tao Lan(兰涛)1, Ge Zhuang(庄革)1, Tijian Deng(邓体建)1, Jie Wu(吴捷)1, Hangqi Xu(许航齐)1, Chen Chen(陈晨)1, Sen Zhang(张森)1, Jiaren Wu(邬佳仁)1, Yiming Zu(祖一鸣)1, Hong Li(李弘)1, Jinlin Xie(谢锦林)1, Ahdi Liu(刘阿娣)1, Zixi Liu(刘子奚)1, Zhengwei Wu(吴征威)1, Hai Wang(汪海)1, Xiaohui Wen(温晓辉)1, Haiyang Zhou(周海洋)1, Chijin Xiao(肖持进)1,2, Weixing Ding(丁卫星)1, Wandong Liu(刘万东)1 |
1 KTX Laboratory and Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China;
2 Plasma Physics Laboratory, University of Saskatchewan, Saskatoon, SK S7N 5E2, Canada |
|
|
|
|
Abstract A 10-channel Hα diagnostic system has been designed with the rapid response rate of 300 kHz, spatial resolution of about 40 mm, and overlap between adjacent channels of about 3%, and it has been implemented successfully on Keda Torus eXperiment (KTX), a newly constructed, reversed field pinch (RFP) experimental device at the University of Science and Technology of China (USTC). This diagnostic system is a very important tool for the initial KTX operations. It is compact, with an aperture slit replacing the traditional optical lens system. A flexural interference filter is designed to prevent the center wavelength from shifting too much as the increase of angle from vertical incidence. To eliminate the stray light, the interior of the system is covered with the black aluminum foil having a very high absorptivity. Using the Hα emission data, together with the profiles of electron temperature and density obtained from the Langmuir probe, the neutral density profiles have been calculated for KTX plasmas. The rapid response rate and good spatial resolution of this Hα diagnostic system will be beneficial for many studies in RFP plasma physics.
|
Received: 22 April 2019
Revised: 19 April 2019
Accepted manuscript online:
|
|
PACS:
|
52.70.-m
|
(Plasma diagnostic techniques and instrumentation)
|
| |
52.25.Ya
|
(Neutrals in plasmas)
|
| |
28.52.-s
|
(Fusion reactors)
|
|
| Fund: Project supported by the National Magnetic Confinement Fusion Science Program of China (Grant No. 2017YFE0301700) and the National Natural Science Foundation of China (Grant No. 11635008). |
Corresponding Authors:
Tao Lan
E-mail: lantao@ustc.edu.cn
|
Cite this article:
Junfeng Zhu(朱军锋), Tao Lan(兰涛), Ge Zhuang(庄革), Tijian Deng(邓体建), Jie Wu(吴捷), Hangqi Xu(许航齐), Chen Chen(陈晨), Sen Zhang(张森), Jiaren Wu(邬佳仁), Yiming Zu(祖一鸣), Hong Li(李弘), Jinlin Xie(谢锦林), Ahdi Liu(刘阿娣), Zixi Liu(刘子奚), Zhengwei Wu(吴征威), Hai Wang(汪海), Xiaohui Wen(温晓辉), Haiyang Zhou(周海洋), Chijin Xiao(肖持进), Weixing Ding(丁卫星), Wandong Liu(刘万东) Construction of an Hα diagnostic system and its application to determine neutral hydrogen densities on the Keda Torus eXperiment 2019 Chin. Phys. B 28 105201
|
| [1] |
Hollmann E M and Pigarov A Y 2002 Phys. Plasmas 9 4330
|
| [2] |
Liu J K, Wu Z W, Wan B N, Zhang X M and Zhou Q 2001 Plasma Sci. Technol. 3 997
|
| [3] |
Eilerman S, Anderson J K, Kumar S, Liu D, Nornberg M, Waksman J and Fiksel G 2010 52nd Annual Meeting of the APS Division of Plasma Physics, November 8–122, 2010, Chicago, Illinois, DPP.PP9.62
|
| [4] |
Kurz C, Snipes J A and Terry J L, Labombard B, Lipschultz B and McCracken G M 1995 Rev. Sci. Instrum. 66 619
|
| [5] |
Nakashima Y, Kobayashi S, Aminaka H, Fukasawa T, Shoji M, Ishimoto Y, Kubota Y, Yoshikawa M, Kawamori E, Ichimura M, Islam M K and Yatsu K 2003 Rev. Sci. Instrum. 74 2115
|
| [6] |
Gupta D K, Deng B H, Knapp K, Sun X and Thompson M C 2012 Rev. Sci. Instrum. 83 10D534
|
| [7] |
Higashizono Y, Nakashima Y, Shoji M, Kobayashi S, Nishino N, Kawano H, Kubota Y, Kobayashi T, Yoshikawa M, Mishima Y, Suzuki M, Mori K and Cho T 2007 Plasma Fusion. Res. 2 S1087
|
| [8] |
Liu W D, Mao W Z, Li H, et al. 2014 Plasma Phys. Control. Fusion 56 094009
|
| [9] |
Liu W D, Lan T, Mao W Z, et al. 2017 Nucl. Fusion 57 116038
|
| [10] |
Bai W, Lan T, Yang L, et al. 2015 Fusion Eng. Des. 100 495
|
| [11] |
Bai W, Lan T, Yang L, et al. 2017 Fusion Sci. Technol. 72 137
|
| [12] |
Tu C, Liu A, Li Z C, et al. 2017 Rev. Sci. Instrum. 88 093513
|
| [13] |
Luo B, Zhu P, Li H, Liu W D and KTX Team 2018 Nucl. Fusion 58 016049
|
| [14] |
Quijada M A, Marx C T, Arendt R G and Moseley S H 2004 Proc.SPIE. 5487 244
|
| [15] |
Thorlabs https://www.thorlabs.com
|
| [16] |
Ryan C 2006 Absolute Hα Emission Measurement System for the Maryland Centrifugal eXperiment (MS dissertation) (City of College Park: University of Maryland, College Park)
|
| [17] |
Johnson L C and Hinnov E 1973 J. Quant. Spectrosc. Radiat. Transfer. 13 333
|
| [18] |
ADAS http://adas.phys.strath.ac.uk/
|
| [19] |
Cormack A M 1963 J. Appl. Phys. 34 2722
|
| [20] |
Cormack A M 1964 J. Appl. Phys. 35 2908
|
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
Altmetric
|
|
blogs
Facebook pages
Wikipedia page
Google+ users
|
Online attention
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
View more on Altmetrics
|
|
|
