{"title":"5 K辐照下聚合物的介电行为","authors":"H. M. Banford, D. Tedford, M. Ayoubi","doi":"10.1109/CEIDP.1988.26323","DOIUrl":null,"url":null,"abstract":"A measurement system was developed to carry out frequency domain dielectric spectroscopy and TSDC (thermally stimulated discharge currents) automatically on multiple samples which can be irradiated in helium over a wide temperature range from 5 to 300 K. The system was used to study the dielectric behavior of polyimide and low-density polyethylene (LDPE) as a function of temperature and gamma radiation. Measurements of loss in polyimide and LDPE gamma-irradiated at 5 K to doses of 10/sup 5/ Gy show no effects of radiation. A TSDC signal was observed for polyimide irradiated to 10/sup 5/ Gy. The small currents evident at low temperatures are probably due to geminate carriers, and there is a beta peak around 170 K.<<ETX>>","PeriodicalId":149735,"journal":{"name":"1988. Annual Report., Conference on Electrical Insulation and Dielectric Phenomena","volume":"57 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1988-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"The dielectric behaviour of polymers irradiated at 5 K\",\"authors\":\"H. M. Banford, D. Tedford, M. Ayoubi\",\"doi\":\"10.1109/CEIDP.1988.26323\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A measurement system was developed to carry out frequency domain dielectric spectroscopy and TSDC (thermally stimulated discharge currents) automatically on multiple samples which can be irradiated in helium over a wide temperature range from 5 to 300 K. The system was used to study the dielectric behavior of polyimide and low-density polyethylene (LDPE) as a function of temperature and gamma radiation. Measurements of loss in polyimide and LDPE gamma-irradiated at 5 K to doses of 10/sup 5/ Gy show no effects of radiation. A TSDC signal was observed for polyimide irradiated to 10/sup 5/ Gy. The small currents evident at low temperatures are probably due to geminate carriers, and there is a beta peak around 170 K.<<ETX>>\",\"PeriodicalId\":149735,\"journal\":{\"name\":\"1988. Annual Report., Conference on Electrical Insulation and Dielectric Phenomena\",\"volume\":\"57 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1988-10-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"1988. Annual Report., Conference on Electrical Insulation and Dielectric Phenomena\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/CEIDP.1988.26323\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"1988. Annual Report., Conference on Electrical Insulation and Dielectric Phenomena","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CEIDP.1988.26323","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The dielectric behaviour of polymers irradiated at 5 K
A measurement system was developed to carry out frequency domain dielectric spectroscopy and TSDC (thermally stimulated discharge currents) automatically on multiple samples which can be irradiated in helium over a wide temperature range from 5 to 300 K. The system was used to study the dielectric behavior of polyimide and low-density polyethylene (LDPE) as a function of temperature and gamma radiation. Measurements of loss in polyimide and LDPE gamma-irradiated at 5 K to doses of 10/sup 5/ Gy show no effects of radiation. A TSDC signal was observed for polyimide irradiated to 10/sup 5/ Gy. The small currents evident at low temperatures are probably due to geminate carriers, and there is a beta peak around 170 K.<>
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