低温吸附罐碘发生器供碘研究

Research on Iodine Supply with Cryosorption Iodine Generator

摘要: 氧碘化学激光器的传统碘发生器的缺点是准备时间较长，并且在长时间供碘实验中碘量会有下降的现象。低温吸附罐碘发生器内部设有均匀分布的翅片，可以极大地提高内部的比表面积，从而增大热量传导的表面积，在激光器实验过程中，获得较为稳定的碘流量。同时，低温吸附罐还可以作为氧碘化学激光器的低温压力恢复系统，在液氮温度时捕获尾气，从而实现激光器作为一个封闭循环的整体。碘流量的测量采用的是双光谱吸收的方法，可以去除吸收过程中吸收池窗口的镜面污染，实现准确实时的流量监测。

Abstract: The disadvantages of traditional iodine generator are that it costs more preparation and the flowrate of iodine descended visibly in long-time operation. The well-distributed vanes in the cryosorption iodine generator enlarge its specific surface and conduct energy well, which are the preconditions of steady iodine supply. The cryosorption iodine generator at liquid nitrogen temperature can also be used to capture the residual gases consequently to realize closed equipment through which the raw materials circulate. The method of two-wavelength absorption spectroscopy is used to measure the flowrate of iodine, which can eliminate the influence of scattering in the mirrors and monitor the flowrate accurately and timely.