Low Level Alpha-Beta Counting System

The Low Level Alpha-Beta Counting System is used to measure the activity of a pure beta-emitting radionuclide, Strontium-90.

The system has 11 gas flow counters operating in a chamber filled with a special gas (90% argon and 10% methane). The signals from the detectors are counted and processed in a microprocessor data system. The specific activity of strontium-90 is obtained from the total counts of the samples. The system can measure 10 samples simultaneously, hence provides a high throughput.