【摘要】 利用场致发射显微分析综合系统（ＦＥＭ－ＦＩＭ－ＩＡＰＣｏｍｂｉｎａｔｉｏｎＳｙｓｔｅｍ）￣［１］进行场致负离子发射方面的研究，探索出场致发射获取负离子及其负离子谱的方法和条件，并对不同实验条件所获得负离子谱进行了分析，总结出场致发射负离子谱的一些基本特点和规律。更多还原

【Abstract】 By using the FEM-FIM-IAP combination SYSetm,we have studied fieldnegative ion emission.The method and conditions of acquiring field emitted negative ions have beenestubllshed.The negative ion spectra(NIS)obtained under different experimental conditons are alsostudied,and the characters of NIS are reported here.更多还原