The Calibration of High-Speed Camera Imaging System for ELMs Observation on EAST Tokamak

被引：3

作者：

Fu Chao ^{[1
]}

Zhong Fangchuan ^{[1
,2
]}

Hu Liqun ^{[3
]}

Yang Jianhua ^{[3
]}

Yang Zhendong ^{[1
]}

Gan Kaifu ^{[3
]}

Zhang Bin ^{[3
]}

机构：

[1] Donghua Univ, Coll Sci, Shanghai 201620, Peoples R China

[2] Minist Educ, Magnet Confinement Fus Res Ctr, Shanghai 201620, Peoples R China

[3] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China

来源：

PLASMA SCIENCE & TECHNOLOGY | 2016年 / 18卷 / 09期

基金：

中国国家自然科学基金;

关键词：

CCD; calibration; H-mode; ELM; filamentary structure; high-speed camera;

D O I：

10.1088/1009-0630/18/9/02

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

A tangential fast visible camera has been set up in EAST tokamak for the study of edge MHD instabilities such as ELM. To determine the 3-D information from CCD images, Tsai's two-stage technique was utilized to calibrate the high-speed camera imaging system for ELM study. By applying tiles of the passive stabilizers in the tokamak device as the calibration pattern, transformation parameters for transforming from a 3-D world coordinate system to a 2-D image coordinate system were obtained, including the rotation matrix, the translation vector, the focal length and the lens distortion. The calibration errors were estimated and the results indicate the reliability of the method used for the camera imaging system. Through the calibration, some information about ELM filaments, such as positions and velocities were obtained from images of H-mode CCD videos.

引用

页码：884 / 889

页数：6

共 17 条

[1]

[Anonymous], 1989, NUCL FUSION, V29, P1959, DOI 10.1088/0029-5515/29/11/010

[2] ELM-induced plasma transport in the DIII-D SOL [J].

Boedo, JA ;

Rudakov, DL ;

Hollmann, EM ;

Moyer, RA ;

McKee, GR ;

Burrell, K ;

Evans, TE ;

Leonard, AW ;

West, WP ;

Fenstermacher, ME ;

Groth, M ;

Allen, SL ;

Zeng, L ;

Wang, G ;

Watkins, JG .

JOURNAL OF NUCLEAR MATERIALS, 2005, 337 (1-3) :771-775

[3] Plasma-material interactions in current tokamaks and their implications for next step fusion reactors [J].

Federici, G ;

Skinner, CH ;

Brooks, JN ;

Coad, JP ;

Grisolia, C ;

Haasz, AA ;

Hassanein, A ;

Philipps, V ;

Pitcher, CS ;

Roth, J ;

Wampler, WR ;

Whyte, DG .

NUCLEAR FUSION, 2001, 41 (12R) :1967-2137

[4]

Harris CG, 1988, P ALV VIS C

[5] A Tangentially Visible Fast Imaging System on EAST [J].

Jia Manni ;

Yang Qingquan ;

Zhong Fangchuan ;

Zeng Aijun ;

Lu Hongwei ;

Shu Shuangbao .

PLASMA SCIENCE & TECHNOLOGY, 2015, 17 (12) :991-995

[6] Characteristics of edge-localized modes in the experimental advanced superconducting tokamak (EAST) [J].

Jiang, M. ;

Xu, G. S. ;

Xiao, C. ;

Guo, H. Y. ;

Wan, B. N. ;

Wang, H. Q. ;

Wang, L. ;

Zhang, L. ;

Naulin, V. ;

Gan, K. F. ;

Wang, D. S. ;

Duan, Y. M. ;

Yan, N. ;

Liu, P. ;

Ding, S. Y. ;

Zhang, W. ;

Liu, S. C. .

PLASMA PHYSICS AND CONTROLLED FUSION, 2012, 54 (09)

[7] Plasma-surface interaction, scrape-off layer and divertor physics: implications for ITER [J].

Lipschultz, B. ;

Bonnin, X. ;

Counsell, G. ;

Kallenbach, A. ;

Kukushkin, A. ;

Krieger, K. ;

Leonard, A. ;

Loarte, A. ;

Neu, R. ;

Pitts, R. A. ;

Rognlien, T. ;

Roth, J. ;

Skinner, C. ;

Terry, J. L. ;

Tsitrone, E. ;

Whyte, D. ;

Zweben, S. ;

Asakura, N. ;

Coster, D. ;

Doerner, R. ;

Dux, R. ;

Federici, G. ;

Fenstermacher, M. ;

Fundamenski, W. ;

Ghendrih, P. ;

Herrmann, A. ;

Hu, J. ;

Krasheninnikov, S. ;

Kirnev, G. ;

Kreter, A. ;

Kurnaev, V. ;

LaBombard, B. ;

Lisgo, S. ;

Nakano, T. ;

Ohno, N. ;

Pacher, H. D. ;

Paley, J. ;

Pan, Y. ;

Pautasso, G. ;

Philipps, V. ;

Rohde, V. ;

Rudakov, D. ;

Stangeby, P. ;

Takamura, S. ;

Tanabe, T. ;

Yang, Y. ;

Zhu, S. .

NUCLEAR FUSION, 2007, 47 (09) :1189-1205

[8] Progress in understanding the physics of the H-mode pedestal and ELM dynamics [J].

Maggi, C. F. .

NUCLEAR FUSION, 2010, 50 (06)

[9]

Oyama N, 2008, J PHYS C SERIES

[10] Faster and Better: A Machine Learning Approach to Corner Detection [J].

Rosten, Edward ;

Porter, Reid ;

Drummond, Tom .

IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE, 2010, 32 (01) :105-119

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