Alpha/beta internal contamination rapid screening methods for radiation emergency

This study developed methodologies for rapid screening and analysis of numerous biological samples following a radiation accident. A measurement system was established to determine the presence of internal contamination promptly. Smear screening method could distinguish contaminated patients by setting a 20% buffer zone. Gross alpha and gross beta screening method could distinguish contaminated patients by setting limit of detection (0.70, 393 cpm). Smear screening, gross alpha screening, and gross beta screening methodologies are expected to detect internal contamination quickly. While effective for screening, these methods were unsuitable for precise analysis.