Abstract
Several types of commercial microphones and their related equipment have been tested in a nuclear reactor to determine the effect of intense nuclear radiation on their performance. In the past, microphones used to measure the sound field near the exhaust of a nuclear reactor have failed to perform satisfactorily due to high radiation levels. In order to obtain meaningful acoustical data during subsequent tests around a similar engine, an experimental study has been made to determine the performance of microphone assemblies while they were exposed to intense nuclear radiation. The subjects discussed in this paper include: (a) description of the test installation; (b) types of tests conducted; (c) types of failures observed in different kinds of microphones; (d) microphones used for this test are rated in the order of their sensitivity to nuclear radiation.
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