Institute for Nuclear Research
MTA Certificate of Research Excellence

Gas proportional counter system

Category Measuring device
Organizational unit
Person in charge
Üzembentartó Isotoptech Ltd.
Value medium value
Research topics
Abstract

Radiocarbon pre-treatment unit and gas proportional counter (GPC) system for high-precision radiocarbon dating

The gas proportional counting system was developed for high precision radiocarbon dating and consists of nine electrolytic copper proportional counters of identical diameters with sensitive volumes of 0.35-0.73 dm3 and filled with CO2 at 1115 mbar and 2 bar. The inner counters are surrounded by an anticoincidence shield consisting of five multiwire proportional flat counters filled with propane. The pulses of the detectors are handled by integrated amplifiers, discriminators and anticoincidence units interfaced to a microprocessor-controlled data evaluation unit. 

Description

Radiocarbon pre-treatment unit and gas proportional counter (GPC) system for high-precision radiocarbon dating

The gas proportional counting system was developed for high precision radiocarbon dating and consists of nine electrolytic copper proportional counters of identical diameters with sensitive volumes of 0.35-0.73 dm3 and filled with CO2 at 1115 mbar and 2 bar. The inner counters are surrounded by an anticoincidence shield consisting of five multiwire proportional flat counters filled with propane. The pulses of the detectors are handled by integrated amplifiers, discriminators and anticoincidence units interfaced to a microprocessor-controlled data evaluation unit.