Dosimetry of Al2O3 optically stimulated luminescent dosimeter at high energy photons and electrons

International Nuclear Science, Technology and Engineering Conference 2017

原子能学

Mohd Yusof, M.F.^1 ; Joohari, N.A.^1 ; Abdullah, R.^1 ; Abd Shukor, N.S.^1 ; Abd Kadir, A.B.^2 ; Mohd Isa, N.^2

School of Health Sciences, Universiti Sains Malaysia, Kota Bharu, Kelantan

16150, Malaysia^1

Medical Physics and Secondary Standard Dosimatry Laboratory, Malaysian Nuclear Agency, Bangi, Selangor

43000, Malaysia^2

关键词: Codes of practice;    High energy photons;    Higher energy photons;    MeV-Electrons;    Reproducibilities;    Thermoluminescence dosimeter;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/298/1/012023/pdf
DOI  :  10.1088/1757-899X/298/1/012023

来源: IOP

【 摘 要 】

The linearity of Al2O3OSL dosimeters (OSLD) were evaluated for dosimetry works in clinical photons and electrons. The measurements were made at a reference depth of Zrefaccording to IAEA TRS 398:2000 codes of practice at 6 and 10 MV photons and 6 and 9 MeV electrons. The measured dose was compared to the thermoluminescence dosimeters (TLD) and ionization chamber commonly used for dosimetry works for higher energy photons and electrons. The results showed that the measured dose in OSL dosimeters were in good agreement with the reported by the ionization chamber in both high energy photons and electrons. A reproducibility test also reported excellent consistency of readings with the OSL at similar energy levels. The overall results confirmed the suitability of OSL dosimeters for dosimetry works involving high energy photons and electrons in radiotherapy.