Acquisition, storage and analysis system of neutron spectrometer

Abstract

The invention relates to an acquisition, storage and analysis system of neutron spectrometer. The system comprises a data acquisition, storage and analysis unit and a data processing unit, the data acquisition, storage and analysis unit acquires pulse information of a radiation field to be tested, stores the pulse information and then transmits the pulse information to the data processing unit, the data processing unit comprises a real-time processing and offline reconstruction data processing module, the maximum amplitude of pulse is obtained in a continuous sampling mode of the data acquisition, storage and analysis unit and a module trigger mode of the real-time processing and offline reconstruction data processing module, and the pulse amplitude spectrum of neutron or gamma ray is obtained via a neutron window or gamma ray window selected from an attenuation time spectrum. The system solves the problems that an analog nuclear spectrometer is high in counting rate and long in dead time and a dynamic system of an analysis system needs to be corrected, as well as that a digital spectrometer cannot realize complex mathematic logic operation, offline pulse construction and particle discrimination algorithm.

Description

technical field [0001] The invention belongs to the field of neutron spectrometers, in particular to a collection, storage and analysis system of digital neutron spectrometers. Background technique [0002] The earliest multi-channel analyzer was composed of mechanical principles, and some multi-channel analyzers composed of electronic circuits appeared later. It was not until 1950 that the multi-channel analyzer was first composed of an analog-to-digital converter. It developed rapidly and became an indispensable equipment in nuclear experiment technology. In addition to obtaining the pulse amplitude spectrum by single-parameter pulse amplitude analysis, modern multi-channel analyzers generally have the function of obtaining experimental data in other ways, such as dual-parameter pulse amplitude analysis, amplitude analysis sampling of slow-varying voltage Measurement, waveform recording sampling measurement of slowly varying voltage, multi-scaler data acquisition, time sp...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the defects existing in the prior art, the present invention provides a digital neutron spectrometer collection, storage and analysis system, which not only solves the problems of excessive dead time at high counting rates of analog nuclear spectrometers and the dynamic baseline correction of the analysis system; Solve the problem that existing digital spectrometers cannot realize complex mathematical logic operations, off-line pulse reconstruction and particle screening algorithms

Images