Ray energy detection method for ray detector

Abstract

The invention discloses a ray energy detection method for a ray detector, which comprises the following steps: a) detecting rays by a crystal probe and converting the detected rays into signal pulse; b) acquiring the standard waveform of the signal pulse of the ray detector based on a plurality of non-piled signals preset by the signal pulse in the step a), and using the standard waveform as the reference waveform of the ray detector; c) based on the standard waveform, obtaining an energy correction table of the ray detector; and d) according to the energy correction table, performing energy interpretation on the non-piled signals of the ray detector so as to obtain ray energy corresponding to the non-piled signals, and correcting pile signals so as to obtain ray energy respectively corresponding to the pile signals. According to the method of the invention, the conventional exponential hypothesis model is replaced by an actual measurement and statistic method, so the method not only improves the detection precision of the ray detector, but also does not need changing hardware of the prior detector, and is simple and effective.

Description

technical field [0001] The invention relates to the field of radiation detection, in particular to a radiation energy detection method of a radiation detector. Background technique [0002] At present, in radiation detection in medical and clinical fields, crystals such as BGO are often used as crystals used in various radiation detectors. For example, after the BGO crystal probe receives the radiation, it will generate a pulse, and use the generated pulse information to perform integration, maintenance, sampling, calculation, etc. of the electronic circuit to further obtain the energy of the radiation. [0003] In the existing ray detectors, as shown in FIG. 1 , there are mainly two methods for obtaining the energy of the ray: [0004] method one [0005] Integrating the original pulse signal generated by the above-mentioned detector to obtain the integral signal of the pulse signal, the original pulse signal is as Figure 1a As shown in , where the horizontal axis repres...

AI Technical Summary

Problems solved by technology

[0019] Therefore, neither of the above two energy detection methods can overcome the energy detection error caused by the discrepancy between the ideal exponential model assumed in the prior art and the actual waveform

At the same time, the existing energy detection methods cannot meet the needs of ray detectors that require higher energy detection accuracy

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