A. H. Redmond
Published: 1957
Total Pages: 54
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If necessary, the instrument can be used to determine whether a given flux from a reactor is moderated or unmoderated. The experimental model contains proportional counters sensitive to fast or slow neutrons; at a tolerance flux of either, the instrument reads in the neighborhood of halfscale. The model case measures about 6 by 6 by 11 in. Power is derived from five 1.5 volt flashlight cells, and the instrument should operate continuously for more than 60 hours at room temperature. A plutonium source is used for a check of sensitivity, to ensure that the instrument is in calibration before use.