A Monitor for Low Intensity Gamma-Rays
Open Access
- 1 April 1950
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 21 (4) , 356-359
- https://doi.org/10.1063/1.1745582
Abstract
A recording monitor for low intensity gamma‐radiation has been developed, using a simple and inexpensive form of dynamic condenser electrometer in connection with an ionization chamber and a commercial recording potentiometer. Use of a rate of drift method at relatively low voltage sensitivity eliminates difficulties with contact potentials and grounding key kicks. The instrument gives an indication and recycles when 5 microroentgens have been received. Normal gamma‐background current is 4 to 5×10−15 amperes and at this sensitivity the instrument is extremely rugged and operates outdoors in all weather.Keywords
This publication has 1 reference indexed in Scilit:
- Design of Dynamic Condenser ElectrometersReview of Scientific Instruments, 1947