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Titolo:
THE EFFECT OF THE DOSE-RATE OF IONIZING-R ADIATION ON THE DIELECTRIC-PROPERTIES OF POLYETHYLENE AND POLYTETRAFLUOROETHYLENE
Autore:
MATVEEV VK; SMIRNOVA NA; MILINCHUK VK;
Indirizzi:
LV KARPOV PHYS CHEM INST OBNINSK 249020 RUSSIA LV KARPOV PHYS CHEM INST OBNINSK 249020 RUSSIA
Titolo Testata:
Vysokomolekularnye soedinenia. Seria A
fascicolo: 6, volume: 35, anno: 1993,
pagine: 20000297 - 20000300
SICI:
0507-5475(1993)35:6<20000297:TEOTDO>2.0.ZU;2-W
Fonte:
ISI
Lingua:
RUS
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
6
Recensione:
Indirizzi per estratti:
Citazione:
V.K. Matveev et al., "THE EFFECT OF THE DOSE-RATE OF IONIZING-R ADIATION ON THE DIELECTRIC-PROPERTIES OF POLYETHYLENE AND POLYTETRAFLUOROETHYLENE", Vysokomolekularnye soedinenia. Seria A, 35(6), 1993, pp. 20000297-20000300

Abstract

The effect of the dose rate of gamma-irradiation on the dielectric properties of LDPE and PTFE was studied. Measurements were taken for dose rates D = 10(-3) - 1 Gy/s, and different irradiation conditions (airand vacum), The dielectric losses (tan delta) of LDPE gamma-irradiated in air increase with a decrease in the dose rate prortional to D-0.5because of radiation-induced oxidation reaction. For air irradiated PTFE, the dependence tan delta on the dose rate is determined by competition between the processes of recombination of primary radicals and their oxidation.

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Documento generato il 24/09/20 alle ore 07:51:59