激光与光电子学进展, 2015, 52 (11): 111201, 网络出版: 2015-10-15
HL-2A装置上近红外轫致辐射的时空分布测量 下载: 922次
Measurement of the Temporal and Spatial Distribution to Near Infrared Bremsstrahlung Emission in HL-2A Tokamak
测量 托卡马克等离子体 轫致辐射 近红外光谱 时空分布 measurement tokamak plasma bremsstrahlung emission near infrared spectrum temporal and spatial distribution
摘要
为了开展托卡马克装置边缘相关物理问题的研究及汤姆逊散射对电子温度、电子密度更为精确的测量,初步建立了具有高时空分辨的近红外轫致辐射测量系统,并测量了其在不同加热条件下的近红外轫致辐射信号。通过与可见光波段及X 射线的轫致辐射信号进行对比分析,验证了系统的可行性。该诊断观测了HL-2A 极向截面的整个空间,15 道观测弦以极向截面的中平面为轴对称分布,通过Abel 反演得到了近红外轫致辐射信号的空间分布趋势。
Abstract
In order to research related edge plasma physics and accurately measure electron temperature and electron density with Thomson scattering system in HL- 2A Tokamak device, a new kind of near infrared (NIR) bremsstrahlung emission measurement system with high space- time resolution is built for the first time. Under different discharge and heating conditions, the bremsstrahlung signals in NIR range are successfully obtained and compared with those in visible and soft X- ray range, so that the reliability of the NIR system is confirmed. The radial profile of the NIR bremsstrahlung signals is presented by Abel inversion of bremsstrahlung emission from fifteen horizontal chords which axisymmetrically distribute along the plane in the cross section.
商洁, 黄渊, 刘春华, 聂林. HL-2A装置上近红外轫致辐射的时空分布测量[J]. 激光与光电子学进展, 2015, 52(11): 111201. Shang Jie, Huang Yuan, Liu Chunhua, Nie Lin. Measurement of the Temporal and Spatial Distribution to Near Infrared Bremsstrahlung Emission in HL-2A Tokamak[J]. Laser & Optoelectronics Progress, 2015, 52(11): 111201.