The role of gamma-ray irradiation on the electrical characteristics of polyethersulfone (PES) is studied via thermally stimulated current (TSC) measurements. The PES film used has a thickness of 125μm. A picoammeter measures the d.c. conduction current. TSC is measured under short-circuited condition for which the samples are poled at a certain poling temperature and period. Gamma-ray irradiation is conducted in air at room temperature with a dose rate of about 30Gy/h to a total dose of 30kGy. The results show that, when PES is irradiated by gamma-rays, d.c. conduction current and TSC decrease. The reason is that the progress of crosslinking induced by the irradiation hinders the transport of ions.
|Number of pages||4|
|Publication status||Published - 1995 Dec 1|
|Event||Proceedings of the 1995 International Symposium on Electrical Insulating Materials - Tokyo, Jpn|
Duration: 1995 Sep 17 → 1995 Sep 20
|Other||Proceedings of the 1995 International Symposium on Electrical Insulating Materials|
|Period||95/9/17 → 95/9/20|
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