A Pulse Pileup Correction Method Based on Morphology and Optimal Gray Model

Abstract

The invention discloses a pulse accumulation correction method based on morphology and optimized gray model, which includes preprocessing the accumulation pulse data; then combining the mathematical morphology with the gray model and first performing correction processing on the pulse rising section and falling section respectively , and then integrate it into a complete pulse signal to realize the correction of the accumulation of the entire pulse signal. And according to the deficiencies of the traditional gray model, the hyperbolic tangent transformation function is cleverly used to optimize the gray model. The present invention uses the mathematical morphology transformation and the optimized gray model to correct the rising section and the falling section of the accumulation pulse signal respectively, and combines the mathematical prediction model from the aspect of image processing to more accurately identify the single-pulse accumulation and reconstruct the double-peak pulse accumulation Signals, improve nuclear signal analysis and processing capabilities, and provide guarantees for security applications such as nuclear technology.

Description

technical field [0001] The invention relates to the technical field of nuclear signal processing, in particular to a pulse pile-up correction method based on morphology and optimized gray model. Background technique [0002] In the process of nuclear information acquisition, if the detector does not fully respond to the previous pulse, the next pulse will arrive, which will cause partial or even complete overlap of adjacent pulse signals, which is the so-called pulse accumulation. Under conditions such as high count rate and high noise, pulse accumulation is particularly prone to occur. Pulse accumulation will bring a series of negative effects to research work, specifically reflected in pulse waveform deformation, loss of count rate, dead time extension, and then affect time. resolution, spatial resolution, etc. Pulse pile-up is a key problem in nuclear radiation measurement systems and energy spectrum measurement systems. In the process of neutron detection, pulse pile-up...

AI Technical Summary

Problems solved by technology

In previous studies, the negative impact of pulse accumulation was suppressed by directly removing the generated accumulation signal. In addition, this straightforward method will lead to missing data and cause large correction errors, which will increase the difficulty of subsequent analysis.

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