Accession Number : ADA322869
Title : A Modified Decade Scaler: Final Report on Project Authorization Number CMR-3-5,
Corporate Author : TECHNICAL INFORMATION SERVICE (AEC) OAK RIDGE TN
Personal Author(s) : Rupert, George N.
PDF Url : ADA322869
Report Date : 1949
Pagination or Media Count : 14
Abstract : An automatic decade scaler which operates for a fixed number of counts has been developed for use with a Geiger tube. The elapsed counting time is read by a 115V AC clock to 0.01 minute. Manual operation is provided to allow the scaler to be run for a fixed time interval in which case every 10,000 counts are recorded by a Cyclotron recording meter. The instrument has a two pulse resolution time of 25 microseconds. Four decades in cascade are used in the scaler, one of which has a resolution time of 8 microseconds; the other three, a resolution time of 30 microseconds. Ten neon bulbs are used in each decade to indicate the count.
Descriptors : *GEIGER COUNTERS, *SCALERS, TIME INTERVALS, CIRCUIT ANALYSIS, TIME INTERVAL COUNTERS, CYCLOTRONS, VOLTAGE CONTROLLED OSCILLATORS, NEON TUBES.
Subject Categories : Nuclear Instrumentation
Distribution Statement : APPROVED FOR PUBLIC RELEASE