Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2008, Vol. 19 ›› Issue (4): 218 doi: 10.1016/S1001-8042(08)60053-6


Rate of elapsed polymerization of hydroxyethylacrylate gel induced by gamma irradiation

Khalid Ahmed RABAEH1,* Elias SAION1 Mohammad Ahmed Ali OMER1 Azhar Abdul RAHMAN1 Mohammad Yusif HUSSAIN1 Shahrim ISKANDAR 1 Noria Mohammad ALI2   

  1. 1 Department of Physics, Universiti Putra Malaysia 43400 UPM Serdang, Selangor, Malaysia
    2 Nuclear Agency of Malaysia, 43000 Kajang, Selangor, Malaysia
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Khalid Ahmed RABAEH Elias SAION Mohammad Ahmed Ali OMER Azhar Abdul RAHMAN Mohammad Yusif HUSSAIN Shahrim ISKANDAR Noria Mohammad ALI. Rate of elapsed polymerization of hydroxyethylacrylate gel induced by gamma irradiation.Nuclear Science and Techniques, 2008, 19(4): 218     doi: 10.1016/S1001-8042(08)60053-6

Abstract: The rate of elapsed polymerization of polyhydroxyethylacrylate in gelatin has been studied to investigate the effect of co-monomers consumption at a given dose. The polymer gel dosimeters consisted of 2%~4% N,N-methyelene-bis-acrylamide cross-linker, 2%~4% 2-hydroxyethylacrylate monomer and gelatin at 3% and 5%. The dosimeters were irradiated by using 60Co teletherapy -ray source up to 20 Gy at a constant dose rate. The relaxation rate of water proton in the dosimeters at different doses and co-monomer concentrations were measured using a nuclear magnetic resonance spectroscopy. The rate of elapsed polymerization decreases with increasing the dose and the initial concentration of co-monomers. The rate of consumption of co-monomers increases with an increase of the polymerization and the gelatin content of the polymer gel.

Key words: Elapsed polymerization, Relaxation rate, Consumption rate, Polymer gel dosimeter