A Correlation: TL response of synthetic fused quartz with 60Co gamma (high dose) source and 90Sr/ 90Y Beta (low dose) source
DOI:
https://doi.org/10.48165/Keywords:
Beta rays, Dose response, Synthetic Fused quartz, Gamma rays, glow curveAbstract
The correlation between TL response of synthetic fused quartz with 60Co gamma source and 90Sr/90Y beta source are discussed. In the present study the thermo luminescence response of two batches of synthetic fused quartz irradiated simultaneously with gamma and beta rays were obtained with Thermo Electron Corporation manual TLD Reader Model number 3500 TLD reader. The result revealed that this phosphor tends to exhibit a very close TL glow shapes for different test doses using the two irradiation sources. There seems to be a significant relationship in the dose response and the fading of the phosphor with the different irradiation sources. The seeming distinct properties of this phosphor with the two types of irradiators suggest the suitability of this material for mixed radiation dosimetry.
References
Koul D. K. 110oC thermo luminescence glow peak of quartz-a brief review; Pramana Journal of Physics Vol. 71, No.6 pp (2008) 1209-1229
Vaijapurkar S.G. and Bhatnagar P.K. Low cost thermo luminescence (TL) gamma dosimeter for radiotherapy Nucl. Tracks & Radiat. Meas. (1993) 21 (2) 267-264
Wintle A. G., Anomalous fading of thermo luminescence in minerals samples Nature 245, (1973) 143-144
Mische, E.F and Mckeever S.W.S,. Mechanism of Supralinearity in Lithium Fluoride TL dosemeter, Radiat, Prot. Dosim. 29 (1989)159-175
Inyang E.P, Ogundare FO and Balogun F.A. Effect of Preheat Temperature on the Glow curve of Fused Quartz .Ife Journal of Science Vol. 9 (2007) pp. 71-76
Inyang E.P. A determination of the thermo luminescence characteristic of some silica based glass, Unpublished MSc Thesis, Obafemi Awolowo University Ile Ife Nigeria (2006) 7. Koul D.K. and Chougaankar, M.P. The pre-dose phenomenon in OSL Signal of quartz. Radiation Measurements 42,( 2007) 1273-1272
