Title :
γ-Irradiation effect on TSC from polyester films
Author :
Yiqin Zhou;Hanchneg Wu;Jixiang Chang
Author_Institution :
University of Science and Technology of China, Hefei, Anhui, People´s Republic of China
Abstract :
TSC spectra of the thermo-relaxation of frozen-in dipoles and space charges from PET irradiated by 60CO have been investigated. The total dose ranged over Mrad at dose rates from 10 to 850 rad/sec. It was observed the current peaks of space charges undergo a max value with increasing of irradiation doses, and finally tend almost to a constant at various dose rates. Authors suppose two processes, namely, the excitation new carrier by ionization irradiation and annihilation electrons by oxygen diffusion, are presented, This can be used as a method for distinguishing main species of carrier in polymer-electrects.
Keywords :
"Positron emission tomography","Space charge","Radiation effects","Atmospheric measurements","Electrets","Polymers"
Conference_Titel :
Electrets (ISE 5), 1985 5th International Symposium on
Print_ISBN :
000-0-0000-0000-0
DOI :
10.1109/ISE.1985.7341552
