Recent experiences of analytical activities with DA and NDA measurements in the Tokai reprocessing plant

Surugaya, Naoki ; Taguchi, Shigeo ; Kurosawa, Akira; Watahiki, Masaru

The Tokai Reprocessing Plant (TRP) as the first pilot plant in Japan started a series of operational testing for spent fuel reprocessing of light water reactor in 1977. In the meantime with over 30 years, we have developed a lot of measurement techniques to establish a precise and effective accountability analysis as well as a safeguards analysis for use in the national and international verification on nuclear materials. This paper will describe the details based on the recent results in overall activities at the TRP.