Title :
Ionization Chamber Survey Instrument
Author :
Higinbotham, W.A. ; Pollock, B.
Author_Institution :
Brookhaven National Laboratory, Upton, N. Y.
fDate :
3/1/1957 12:00:00 AM
Abstract :
A wide range survey instrument is described. Ranges are 20 mr/hour to 20 r/hour full scale. The thin plastic ionization chamber is easily replaced if contaminated. A three-tube, negative feedback circuit with low battery drain is used. The input resistor selector switch is a new design with high insulation. It is nonmicrophonic and does not cause transients when changing ranges.
Keywords :
Batteries; Feedback circuits; Instruments; Insulation; Ionization chambers; Laboratories; Negative feedback; Plastics; Resistors; Switches;
Journal_Title :
Nuclear Science, IRE Transactions on
DOI :
10.1109/TNS2.1957.4315570
