Apparatus for the measurement of thermoluminescence

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Abstract
Apparatus for the measurement of thermoluminescence is described which generates glow curves with an overall reproducibility of +or-5%. Particular attention has been given to the design of a controller capable of accurately reproducing a chosen linear heating rate (0.1-99.9 degrees C s-1) up to a predetermined final temperature (ambient to 990 degrees C). A manually operated 'hold' facility for intermediate temperatures is also provided. The construction of the light-measuring system and checks on its stability, sensitivity and linear response to very weak sources are also described. The apparatus was designed for the study of linear samples and meteorites.