Comparison of thermoluminescence and electron spin resonance as dosimetry methods in the investigation of the dose distribution inside a 137Cs Gammacell-1000 irradiator.
Thermoluminescence dosimetry (TLD) using LiF:Mg,Ti and electron spin resonance dosimetry using alanine (ALD) have been used to map the dose distribution in the sample chamber of a Gammacell-1000 Irradiator. The results showed that the dose rate to air varied by approximately 20% over the volume of the chamber. The mean ratio of the dose rates at various locations throughout the chamber, TLD/ALD was 1.020 +/- 0.025 (1 sd). The dose range around 30 Gy is regarded as being towards the upper limit of reliability for TLD measurements and towards the lower limit for ALD measurements.
Australian Radiation Laboratory, Yallambie Victoria.
J G
JG
Young
J F
JF
Boas
D000327:Adsorption; D000409:Alanine; D002138:Calibration; D004578:Electron Spin Resonance Spectroscopy; D011834:Radiation Monitoring / Q000379:methods*; D011879:Radiotherapy Dosage; D011880:Radiotherapy Planning, Computer-Assisted; D015203:Reproducibility of Results; D013819:Thermoluminescent Dosimetry
D000409:Alanine