Tritium Radioactivity Measurement Apparatus and Method, Tritium Radioactivity Measurement Method of Subject, and a pair of Exhale Bag and Tritium Collection Device

摘要

To perform tritium collection quickly for a small amount of exhalation with tritium in breath as a target for a large number of subjects, and to measure immediately after tritium collection. SOLUTION: The expiration bag including tritium is detachably attached to the expiration guidance discharge system for each exhalation bag, and the tritium collection means comprises water droplet forming means for forming water droplets during exhalation from the exhalation bag, a breath bag A tritium uptake means for bringing tritium into the water droplet by bringing the exhaled air from the water droplet into contact with the water droplet, and a collection water generating means for collecting water droplets taken in the breath during the exhalation to form collected water , The collected water generating means is detachably attached to the exhalation guide discharge system for each exhalation bag. BACKGROUND OF THE INVENTION