At the same time we studied the difference for use LED low intensity light source and dark current method, mea sured photoelectron spectrum.

• 同时也介绍了用LED光源测得的单光电子幅度谱及用热发射法测得的暗电流谱的差异,并分析了两种方法测得的幅度谱的差异的主要根源。