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Braby L. A.
Health Physics: October 1968
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A method of reading capacitor ion chambers using fast pulse electronics has been developed. This system can read commercial pencil chambers to 10 mV over a range of 0–20 V. A tissue equivalent ion chamber 3.6 cm long and 1.2 cm in dia. has been designed and found to operate reliably when used in conjunction with this reader. The combination will measure neutron and gamma doses of less than 1.5 rad to ± 15 per cent with a minimum sensitivity of 0.05 rad. The dosimeter system has been successfully used for in-phantom neutron dose distribution measurements.

©1968Health Physics Society