Accession Number : AD0283807

Title :   A LOW RATE PORTABLE COUNTER

Corporate Author : NAVAL RADIOLOGICAL DEFENSE LAB SAN FRANCISCO CALIF

Personal Author(s) : SORENSON,R.H. ; KIYOI,G.T.

Report Date : 28 JUN 1962

Pagination or Media Count : 1

Abstract : Measurement of low radiation levels is difficult with present count-rate radiacs because of the excessive meter fluctuations on the low ranges. An accessory has been developed which increases the readability of the low ranges in these devices. The Low-Rate Portabl Counter is i ende for use h re th counti g rate are below 50 0 coun p r minut . The ins rum utili s the output pulse normally used to operate headphones, and supplies the operator with a digital display in counts for a preset time. Four fixed counting periods are v il bl : 4 8 15 min. R I OR CIRCUITRY IS EMPLOY D PO R I UPPLIED BY A I ERNAL RECHARGEABLE BATTERY SOURCE OR FROM A !!%-V, >)-CYCLE LINE. The AC power supply is also used to recharge the battery pack. (Author)

Descriptors :   *DISPLAY SYSTEMS, *RADIATION MEASURING INSTRUMENTS

Distribution Statement : APPROVED FOR PUBLIC RELEASE