SECONDARY-ELECTRON EMISSION FACTORS FROM METALS BOMBARDED WITH HIGHLY-CHARGED, LASER-PRODUCED TANTALUM IONS

[摘要] Copper-beryllium and stainless steel surfaces were bombarded with highly charged tantalum ions with charge states ranging from 7+ to 20+. The electrons emitted from these surfaces were collected, and the secondary emission factor, gamma, was determined in the energy range 20-150 keV for the incident ions. The projectile Ta ions were produced using the CO2 laser of the CERN Laser Ion Source facility. The dependence of gamma on the projectile ion charge states, zeta, and energy is given. The experimental results are compared with existing theoretical predictions.

[发布日期] 1994-05-01

[效力级别]  Proceedings Paper