Development of a real time magnetic island identification system for HL-2A tokamak

被引：3

作者：

Chen, Chao ^{[1
,2
]}

Sun, Shan ^{[1
,2
]}

Ji, Xiaoquan ^{[3
]}

Yin, Zejie ^{[1
,2
]}

机构：

[1] Univ Sci & Technol China, State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China

[2] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Anhui, Peoples R China

[3] Southwestern Inst Phys, Chengdu 610041, Sichuan, Peoples R China

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2017年 / 88卷 / 08期

基金：

中国国家自然科学基金;

关键词：

NEOCLASSICAL TEARING MODE; RECONSTRUCTION;

D O I：

10.1063/1.4997958

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A novel real time magnetic island identification system for HL-2A is introduced. The identification method is based on the measurement of Mirnov probes and the equilibrium flux constructed by the equilibrium fit (EFIT) code. The system consists of an analog front board and a digital processing board connected by a shield cable. Four octal-channel analog-to-digital convertors are utilized for 100 KHz simultaneous sampling of all the probes, and the applications of PCI extensions for Instrumentation platform and reflective memory allow the system to receive EFIT results simultaneously. A high performance field programmable gate array (FPGA) is used to realize the real time identification algorithm. Based on the parallel and pipeline processing of the FPGA, the magnetic island structure can be identified with a cycle time of 3 ms during experiments. Published by AIP Publishing.

引用

页数：8

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