Method for measuring position information of scintillator detector

• Main Authors: LI DAOWU, TANG HAOHUI, HUANG XIANCHAO, ZHANG ZHIMING, WANG SHUAIPENG, LIU SHUANGQUAN, LU ZHENRUI, GAO JUAN, SUN XIAOLI, CHAI PEI, WEI LONG
• Format: Patent
• Language: Chinese; English
• Published: 18.12.2018
• Subjects: MEASUREMENT OF NUCLEAR OR X-RADIATION; MEASURING; PHYSICS; TESTING

The invention discloses a method for measuring position information of a scintillator detector. The method for measuring position information of the scintillator detector comprises the following steps: 1) selecting a positron radioactive point source; 2) moving the positron radioactive point source along a central axis of a nuclear imaging system within a set axial range, and recording a coincidence event collected by the nuclear imaging system at each set position point of the positron radioactive point source; 3) selecting an axial point response function of each pair of positive facing detector units in the same ring of the nuclear imaging system from the collected coincidence events; and 4) confirming the physical position information of the detector unit according to the axial point response function. The method for measuring position information of the scintillator detector disclosed by the invention can accurately and conveniently obtain the physical position parameters of the detector unit of the PET