[2D08-12] Radiation Analysis Technology

[2D08] Development of rapid and sensitive radionuclide analysis method by simultaneous analysis of β, γ, and X-rays

(1)Spectral determination method and its application to the analysis of 40 radionuclides in 1F debris

*Masumi Oshima¹, Jun Goto², Takehito Hayakawa³, Hirofumi Shinohara¹, Katsuyuki Suzuki¹, Yuichi Sano¹, Haifeng Shen¹, Keito Kobayashi¹, Tadahiro Kin⁴, Masato Asai⁵ (1. Japan Chemical Analysis Ctr., 2. Niigata Univ., 3. QST, 4. Kyushu Univ., 5. JAEA)

Keywords:spectral analysis method, radioactivity determination, gamma-ray spectrum, beta-ray spectrum, sensor fusion concept

We have developed the spectral determination method (SDM) which is based on the first principle that a radiation spectrum is derived from the sum of radiation spectra of radioactive nuclides included in the sample. The method enables one to reduce considerably chemical separation steps by simultaneous analysis of the multiple radionuclides.