A system and method for realizing gamma-gamma digital coincidence measurement using virtual instrument technology

Abstract

The invention discloses a system and method for realizing gamma-gamma digital coincidence measurement by using virtual instrument technology, comprising a first probe, a first amplifier, a second probe, and a second amplifier, and the first probe is connected to the input end of the first amplifier , the second probe is connected to the input end of the second amplifier; it also includes a high-speed data acquisition card and a virtual instrument, the virtual instrument includes a data acquisition VI module, an energy spectrum measurement VI module, a relative time delay analysis VI module, and a compliance time discrimination VI module, The output ends of the first amplifier and the second amplifier are electrically connected with the high-speed data acquisition card, and the high-speed data acquisition card is connected with the data acquisition card. The invention utilizes virtual instrument technology, relies on general computer hardware and operating system, develops platform programming software through integrated tools, provides compact structure, strong expansion function, low investment cost, short development cycle, strong reusability, and has various Gamma-gamma figures for measurement and analysis functions correspond to measurement systems and methods.

Description

technical field [0001] The invention belongs to the technical field of radioactivity measurement, and in particular relates to a system and method for realizing gamma-gamma digital coincidence measurement by using virtual instrument technology. Background technique [0002] The coincidence method is one of the most accurate methods for radioactivity measurement, and has a wide range of applications in radioactivity measurement, neutron physics, nuclear reaction research and other fields. With the emergence and development of high-performance ADCs and large-scale programmable digital devices, high-speed A / D conversion devices can be used to convert analog signals into digital signals, and digital processing can be performed in many different ways. Compared with the traditional analog coincidence, the digital coincidence can realize data return visit, as well as arbitrarily set the number, size and position of the threshold window, and can also adjust the delay time and the si...

AI Technical Summary

Problems solved by technology

However, in the general γ-γ digital coincidence measurement system, the problem of increasingly difficult system repair and update is very obvious, and it is difficult for users to make corresponding adjustments and optimizations to the functions of the instrument according to their own needs, and electronic instruments with independent functions expensive

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