考察了空阴极放电管中各种放电电流时氛1S→2P的光电流讯号(OGS),在放电电流足够小时1S2-2P态和1Si(i=3,4,5)→2P态跃迁的光电流讯号之间的镜像对称性被破坏.本交给出了基于三态模型和阴极轰击弛豫过程假说的理论分析,与实验结果一致.

The transient optogalvanio signals (OGS) corresponding to the transitions from IS to 2P states of Ne within a hollow cathode discharge tube under various discharge currents were tested. The most interesting phenomenon was that, when the current was small enough, the mirror imaging symmetry between the profiles of 1S2~2Pk transition and of 1S4(i=3, 4, 5) -2Pktransitions disappeared. The theoretical analys is based,on the three states model and a hypothesis of the relaxation process of cathode bombarding is presented. It agrees with the experimental results.