Characteristics of charge and discharge of PMMA samples due to electron irradiation*
Feng Guo-Baoa), Wang Fanga), Hu Tian-Cunb), Cao Menga)
       
Schematic of electron irradiation on the grounded PMMA film with the electron mobility μ e and thickness H . J PE, J SE, J S, J L, and J D are the PE current, SE current, sample current, leakage current, and displacement current, respectively.