[1C01-04] Radiocarbon

9:45 AM - 10:00 AM JST(12:45 AM - 1:00 AM UTC)

[1C01] Speciation of C-14 leached from irradiated end-pieces

*Shingo Tanaka¹, Tomofumi Sakuragi¹, Masashi Ishioka², Hiroaki Suganuma², Kunitaka Nagamine², Kenichiro Kino², Akira Sakashita³, Hiroyuki Matsuzaki⁴ (1. RWMC, 2. NDC, 3. MHI, 4. UTokyo)

Keywords:

TRU waste,Geological disposal,Hull and end-piece,Carbon speciation,Accelerator mass spectrometry

In the safety assessment of TRU waste disposal, the chemical forms of C-14 leached from hull and end-piece wastes critically influence nuclide migration scenarios and parameters. This study conducted C-14 speciation for irradiated end-pieces by combining high-performance liquid chromatography separation with highly sensitive accelerator mass spectrometry.