Fabry－Perot干涉仪用于托卡马克等离子体氢氘比测量

MEASUREMENT OF THE RATIO DEUTERIUM TO HYDROGEN IN HT 6M TOKAMAK PLASMA WITH A FABRY PEKOT INTERFEROMETER

本文在国内首次将Ｆａｂｒｙ—ｐｅｒｏｔ干涉仪用于托卡马克等离子体诊断。实验采用一台压电驱动式Ｆａｂｒｙ—ｐｅｒｏｔ干涉仪通过对Ｈ_α和Ｄ_α谱线轮廓的测量来推算等离子体的氢氘含量比，从而避免了在传统的氢氘比测量中因重复放电所引起的不准确性。

The Fabry perot interferometer is applied to the spectral diagnostics of Tokamak plasma successfully. The profiles of Hα and Dα lines are recorded with a Fabry perot interferometer driven by a piezoelectric crystal,and the ratio of deuterium to hydrogen in HT 6M Tokamak plasma is deduced from the peak values of the profiles,the error for the shot-to-shot discharge is avoided.