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Abstract
Low levels of environmental radiation exposures using developed LiF:(Mg, Cu, P) phosphor were measured. Fast step heating technique was applied to reduce the time of measurement. The thermoluminescence glow readout time was only 5 seconds. Most of the thermoluminescence (TL) information was extracted in the first attempt of the readout. However, small thermoluminescence signal was also observed in the second attempt of the thermoluminescence readout of the same phosphor. Glow curves from environmental radiation exposures as low as 0.001 mSv were recorded very clearly.
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Shyam Sunder Tiwari
Shyam Sunder Tiwari, born on January 1, 1951 in India. Received BSc degree in 1970 and MSc Physics (Electronics) degree in 1973. WHO Scholarship was awarded in 1974. Obtained a Diploma in Radiological Physics in 1975 and Post Graduate Diploma in Environment and Ecology in 1993. Selected and trained by IAEA in Computer Interfacing of Nuclear Instruments at Santo Domingo, West Indies, 1988. Obtained PhD degree in December 1994 in Physics from University of Bombay, India. Most of the work is in Applied Physics and Industrial Electronics. Member of IEEE (Nuclear Science Society), ISNT, IOMP, AWARE. Working as a Scientist/Engineer Grade SE, at SR&HPG, IGCAR, Kalpakkam.