Showing papers by "Stephen W.S. McKeever published in 1977"
TL;DR: A strong dependence of the intensity of the thermoluminescence (TL) output upon the temperature at which the sample is irradiated is noted in quartz in the glow-curve interval 513-693K as mentioned in this paper.
Abstract: A strong dependence of the intensity of the thermoluminescence (TL) output upon the temperature at which the sample is irradiated is noted in quartz in the glow-curve interval 513-693K. The intensity of the TL output is seen to decrease by a factor of approximately 5 as the irradiation temperature Tirr is decreased from room temperature to 113K when irradiated with 5 krad of X-rays. At higher doses the variation is seen to be much greater: the TL intensity decreasing by a factor of approximately 103 as Tirr is reduced from room temperature to 178K for a gamma dose of 600 krad. The wavelength range of the TL measurements is 375-530 nm.
41 citations
TL;DR: In this paper, the changes in TL sensitivity in crystalline quartz induced by varying doses of protons and γ-rays were investigated and it was interpreted as being caused by damage to the Al/alkali recombination centre.
Abstract: Investigations are reported of the changes in TL sensitivity in crystalline quartz induced by varying doses of protons and γ-rays. The sensitivity is seen at first to increase and then (with proton irradiation) to show a marked decrease as larger doses are imparted to the sample. This effect is interpreted as being caused by damage to the Al/alkali recombination centre.
39 citations