Real-time calibration method for PET detector energy peak position drifting
A calibration method and peak position drift technology, applied in the direction of measuring devices, radiation measurement, X / γ / cosmic radiation measurement, etc., can solve the problem of energy peak position drift, gain value increase, SiPM temperature can not be kept at a certain level Temperature and other issues to achieve the effect of improving the signal-to-noise ratio, increasing the transmission rate, and suppressing the proportion of scattering events
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[0030] The invention is described in further detail below in combination with embodiments.
[0031] This embodiment proposes a real-time calibration method for energy peak drift of PET detector. The method is realized based on the way that the upper computer directly loads the updated energy calibration table. The energy calibration table at least includes detector module information and energy peak offset coefficient peak_ per_ Temp, energy calibration temperature information t0 and energy peak position baseline coefficient b, due to detector module information and energy peak position offset coefficient peak_ per_ Temp and energy calibration temperature information t0 are determined in the calibration stage (mainly the determination of energy peak position offset coefficient, and the detector module information and energy calibration temperature information are determined according to the nature of the equipment). Therefore, the update of energy calibration table in the use stag...
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