Digital nuclide energy spectrum gathering system and gathering method thereof

Abstract

The invention relates to the technical field of nuclear radiation detection and discloses a digital nuclide energy spectrum gathering system and a gathering method thereof. The digital nuclide energy spectrum gathering system comprises an amplifying circuit, a high-speed ADC circuit, an FPGA circuit and an ARM processor circuit, the output end of the amplifying circuit is connected with the high-speed ADC circuit, the output end of the high-speed ADC circuit is connected with the FPGA circuit, and the output end of the FPGA circuit is connected with the ARM processor circuit. The digital nuclide energy spectrum gathering system and the gathering method thereof are capable of carrying out digital sampling and processing on input nuclear pulse signals, lowering the noise in the energy spectrum data and improving the nuclide peak resolution ratio.

Description

technical field [0001] The invention relates to the technical field of nuclear radiation detection, in particular to a nuclide energy spectrum digital collection system and a collection method thereof. Background technique [0002] In the process of nuclide analysis and identification, it is necessary to obtain the exponentially decaying pulse signal output by the nuclear detector through front-end electronics, and extract its energy information from the pulse signal to form energy spectrum data, and then process the energy spectrum data through a digital computer and nuclide analysis. [0003] Existing electronic systems for energy spectrum acquisition are usually implemented by analog circuits, but since the analog devices at all levels in the pulse processing chain will continuously introduce noise and be easily affected by external environments such as temperature, the acquired energy will be reduced. The resolution of the nuclide peaks in the energy spectrum reduces t...

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Problems solved by technology

[0003] Existing electronic systems for energy spectrum acquisition are usually implemented by analog circuits, but since the analog devices at all levels in the pulse processing chain will continuously introduce noise and be easily affected by the external environment such as temperature, the collected data will be reduced. The resolution of the nuclide peaks in the energy spectrum, thereby reducing the accuracy of the nuclide analysis

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