European whole body counter measurement intercomparison

Area of Science:

• Medical Physics
• Radiological Protection
• Nuclear Measurement Science

Background:

• Ensuring accurate internal radioactivity measurement is crucial for radiological protection.
• European quality standards for whole body counting require regular validation.
• Previous intercomparisons have provided valuable data on measurement performance.

Purpose of the Study:

• To evaluate the performance of whole body counters against common quality standards.
• To conduct a comprehensive European intercomparison of whole body counting facilities.
• To identify areas for improvement in internal radioactivity measurement techniques.

Main Methods:

• A European-wide intercomparison involving 44 whole body counting facilities from 42 institutions across 19 countries.
• Utilized the 70 kg St Petersburg phantom, a tissue-equivalent phantom, for standardized measurements.
• Employed radioactive sources of Potassium-40 (40K), Cobalt-57 (57Co), Cobalt-60 (60Co), and Cesium-137 (137Cs) within the phantom.

Main Results:

• The intercomparison represented the most extensive European study of its kind.
• Overall performance of the participating whole body counters was found to be good.
• Data provided insights into the consistency and accuracy of internal radioactivity measurements across diverse facilities.

Conclusions:

• The study demonstrated a generally good performance level for whole body counters in Europe.
• The intercomparison successfully assessed adherence to common quality standards for internal radioactivity measurements.
• Findings support the ongoing efforts to maintain and improve radiological protection standards through validated measurement techniques.