| 摘要 |
PROBLEM TO BE SOLVED: To provide a nuclear medicine data processor which measures gamma rays 7 emitted out of a sample 20 into which RI are dosed with a gamma camera 5, and when carrying out imaging of the distribution state of the RI, performs compensation to effectively removing dispersion components without decreasing the total count value of a main window, and also without increasing the amount of RI and the measuring time. SOLUTION: The count values of the gamma rays 7 having energy inside and outside the main window with a predetermined width centering on a photoelectric peak which is unique to the RI are collected for every position (X, Y) on a plane onto which each gamma ray 7 is emitted, and recorded as the count values (CMj, CSj) inside or outside the main window in a component corresponding to the above position of count value records DB39, respectively. The device determines the total (SS, SM) of CSj and CMj, respectively and determines the correction coefficient (SS/SM) derived by dividing SS by SM. The device records CMj + CMjx (SS/SM) as a post-compensation count value in the above component. COPYRIGHT: (C)2008,JPO&INPIT
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