低能脉冲电子探束研究“气-固”界面

Study of gas-solid interface via low-energy pulsed electron beams

介绍了利用低能脉冲电子探束研究“气 固”界面的基本原理和方法 ,并实验研究了室温T =30 0K、1× 10 - 3Pa真空条件下 ,O2 ,N2 Ni,W“气 固”界面的相互作用 ,即吸附、脱附与置换作用 ,测量了电子诱导脱附产额、脱附截面和阈值能量 。

The principle and method for gas-solid interface study via low-energy pulsed electron beams are introduced, and the processes of adsorption-desorption and displacement are experimentally investigated. The desorption yields, threshold energies, and cross sections for N 2 and O 2 from polycrystalline Ni and W in vacuum (1×10 -3Pa) at (T=300K) are measured. At the end of the paper, the conclusions are given.