Abstract
Abstract The gain stability and the temperature effects of three photomultiplier tube bases at high counting rates were tested experimentally. Comparisons of the gain variation with counting rate were made among different supply voltages and between anode and dynode output signals. The factors causing gain variation at high counting rates were discussed. The experiments show that, choosing a transistor emitter follower type, using a lower supply voltage and adopting a dynode output mode are effective measures for improving the gain stability.
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