High-speed collection board based on electronic filtering technology, and collection processing method

Abstract

The invention discloses a high-speed collection board based on electronic filtering technology, and a collection processing method. The collection board comprises an ARM chip, a client, a server, a pre-amplifier, a follower, a differentiating circuit, a first stage amplifier, a second stage amplifier, a reverse amplifier, an analog-digital converter, an FPGA and a GPU, wherein the pre-amplifier, the follower, the differentiating circuit, the first stage amplifier, the second stage amplifier, the reverse amplifier, the analog-digital converter, the FPGA and the GPU are sequentially connected. The FPGA and the GPU are connected to the client through a serial port and the ARM chip, and the client transmits an instruction to the FPGA or the GPU, and controls the processing process of a pulse signal. The client and the server carry out the bidirectional communication through a network. The collection board makes the most of the GPU to support floating calculation, and is high in programmability. The collection board achieves the multi-thread calculation, and is high in calculation speed. The collection board is high in data transmission speed. In order to solve a problem of pulse accumulation, the method provides the reliable hardware basis. The collection board can overcome the technical difficulty of pulse accumulation, improves the utilization rate of the pulse signals, and finally improves the detection precision of a system.

Description

technical field [0001] The invention belongs to the field of nuclear physics, including the fields of nuclear medical treatment, nuclear geological exploration, industrial detection, etc., and in particular relates to a high-speed acquisition board and an acquisition processing method based on electronic filtering technology. Background technique [0002] At present, common X-ray and nuclear particle acquisition boards do not have the function of spectrum analysis, but only judge the accumulation of pulses. If it is judged as pulse accumulation, the accumulated pulses will be discarded, and the unaccumulated pulses will be kept. Although this approach ensures the accuracy of the signal, it reduces the utilization rate of the signal, thereby reducing the energy resolution of the system. [0003] Pulse stacking (eg figure 2 ) means that the same detection channel detects multiple nuclear events within the duration of one scintillation pulse. The higher the count rate, the mo...

AI Technical Summary

Problems solved by technology

It can be seen that the processing difficulty of pulse stacking mainly lies in the hardware, which requires high performance such as data transmission speed and computing speed of the system, and it is difficult to realize

[0004] Discarding the signal with pulse accumulation, although avoiding a large number of calculations, affects the overall detection accuracy of the system

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