| 摘要 |
The invention is related to a radioactivity analyzing apparatus 100 for analyzing a radionuclide contained in a sample material 1. The apparatus 100 includes a radiation detector 2 that detects a radiation 101 to be detected emitted from the sample material 1 and a radiation analyzer 10 configured to analyze the radiation 101 based on an output from the radiation detector 2. The radiation analyzer 10 includes a pulse-height analyzer 12 configured to extract a pulse-height distribution from a pulse signal being output from the radiation detector 2 and depending on the radiation 101, an inverse-problem operator 13 configured to perform an inverse-problem solution of the pulse-height distribution to extract an energy spectrum of the radiation, and a deterioration detector 15 configured to determine a deterioration state of the radiation detector based on the extracted energy spectrum. |
