Investigation of high-dose irradiation effects on polystyrene calorimeter response

• Autorzy: Ziaie F. , Noori A.
• Języki publikacji: EN

Abstrakty

EN

In this work attempts have been made to investigate the variation of polystyrene calorimeter response after frequent irradiations with an electron beam. Polystyrene calorimeters are routinely used in every radiation processing center as a traceable to NPL primary standard dosimeter. Thus, self designed high impact polystyrene as the calorimeter core was irradiated several times up to many thousands of kGy doses. After each irradiation, the specific heat capacity of the polystyrene as the main changeable parameter was measured using the differential scanning calorimeter system (DSC) in the practical temperature range of polystyrene calorimeter. Therefore, correction factors to calculate the precise absorbed dose were obtained. At the final stage, several these calorimeters were irradiated simultaneously along with two Risoe standard calorimeters and another correction factor for each tested calorimeter was calculated.

Słowa kluczowe

EN

polystyrene calorimeter; electron beam; absorbed dose; high dose; high impact polystyrene (HIPS)

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2006
• Tom: Vol. 51, nr 3
• Strony: 175--178
• Opis fizyczny: Bibliogr. 13 poz., rys.

Twórcy

autor

Ziaie F.

autor

Noori A.

• Material and Ion Beam Application Division, Nuclear Research Center for Agriculture and Medicine, P. O. Box 31485-498, Karaj, Iran and Yazd Radiation Processing Center, P. O. Box 89175-389, Yazd, Iran, Tel.: [phone], Fax: [phone],

Bibliografia

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