[2I08-13] Radiation Measurement 2

[2I09] Development of a rapid measurement method for environmental tritium concentration

(2)Development of an electrolytic enrichment device for environmental tritium measurement

*Ryutaro Imai¹, Yamato Toyoda¹, Tomohiro Sakaguchi¹, Atsushi Tanaka¹, Koji Ishikawa¹, Tomohiko Kawakami¹ (1. KAKEN)

Keywords:tritium, electrolytic enrichment , tritium enrichment, separation factor

Water containing low concentrations of tritium in the environment, such as seawater, takes a lot of time to measure until it is detected by a liquid scintillation counter. Therefore, it is common to enrich tritiated water. A known tritium enrichment method for water is the alkaline electrolytic enrichment method, which concentrates tritium based on the difference in the decomposition rate of hydrogen-1 and tritium during electrolysis. Using this method, a system to simultaneously enrich 12 samples was fabricated, and the conditions of the system were investigated for a short time and high tritium enrichment efficiency. The results will be presented.