HL-1M装置多脉冲钕玻璃激光汤姆逊散射系统  

MULTI-PULSE THOMSON SCATTERING WITH Nd GLASS LASER ON THE HL-1M TOKAMAK

作　　者：邓中朝[1] 施佩兰[1] 刘泽田[1] 冯洁[1] 郦文忠[1] 付荟文 黄渊[1] 周艳[1] 

机构地区：[1]核工业西南物理研究院,成都610041

出　　处：《核聚变与等离子体物理》2002年第1期37-40,共4页Nuclear Fusion and Plasma Physics

摘　　要：描述了钕玻璃激光汤姆逊散射系统在HL 1M装置上的光路总体布局与调试 ,及HL 1M装置上电子温度的测量。散射光源为带有一级放大并可产生 1或 8个激光脉冲的钕玻璃激光器 ,用非线性KDP晶体倍频后 ,能够产生波长为 5 30nm、输出功率约为 10 0MW的脉冲。采用大孔径接收光路和D f =1 2 .8光栅光电谱仪 ,能够实现对等离子体五个空间点电子温度的测量。线色散约为 4 2nm·mm- 1 ,温度的测量范围为 10 0eV～ 2keV。A Thomson scattering diagnostic system with multi-pulse Nd glass laser is described for measuring time-space evolution of electron temperature on the HL-1M tokamak.The optic path arrangement on the HL-1M device and the test for the system,the setup of time sequence for scattering experiments and the calibration,and experiments of measuring electron temperature are also presented.The radiation source for scattering is a Nd glass laser with one step amplifier,which can produce one or eight pulses.After frequency doubling by the nonlinear KDP crystal, pulses with near 100MW power and 530nm wavelength have been obtained.The scattered radiation is collected with a large aperture collection optic system and a D/f=1/2.8 grating polychromater,and five spatial-point measurements for electron temperature can be carried out simultaneously.About 4.2nm·mm -1 line dispersion is obtained and the effective range for measuring temperature is of 100eV≤T e ≤2keV.

关 键 词：汤姆逊散射 钕玻璃激光 电子温度 HL-1M装置 托卡马克装置 等离子体测量 

分 类 号：TL653[核科学技术—核技术及应用] TL631.24