High-voltage power module of photomultiplier

Abstract

The invention relates to the technical field of a plastic scintillator photomultiplier detector, and in particular to a portable, small-size and multi-functional high-voltage power module of a photomultiplier. The high-voltage power module comprises a power module, a small signal processing module and a voltage display module, wherein the power module employs a boost conversion chip LT3580 which is produced by Linear technology company to built a pulse width modulation (PWM) circuit, high-voltage output is achieved by a transformer to rise a voltage, a DC divided voltage is provided for each level of a PMT by a 12-order voltage-multiplying rectifier, the signal processing module is used for amplifying, distinguishing and outputting a weak pulse signal of the photomultiplier, an output high voltage is divided by the voltage display module and then is sent to a digital voltage display circuit to be displayed, analog-digital conversion is performed by an ADC chip, the high voltage is sent to a field programmable gate array (FPGA) and is displayed on an upper-layer interface by a network, and real-time monitoring on a voltage of a Base power supply is achieved. A 3.7-5V DC power supply is used for inputting, the high-voltage power module is small in size, low in power consumption and good in portability, and the demand of power supply to the photomultiplier under a power supply environment of a storage battery and an automobile battery in a mobile workstation can be satisfied.

Description

technical field [0001] The invention relates to the technical field of plastic scintillator photomultiplier tube detectors, in particular to a portable small-sized multifunctional photomultiplier tube high-voltage power supply module. Background technique [0002] As scintillation detectors are increasingly used in outdoor measurement environments, such as the need to accumulate secondary charged cosmic ray flux measurements at different altitudes and longitudes on a large time and space scale, the detectors are required to be small in size and low in power consumption. , easy to carry, and the signal processing circuit is simple. The detectors in the prior art are based on the structure of the traditional high-voltage power supply module and the CAMAC / VME data acquisition system, which is not only expensive, but also has high power consumption and large size, and is completely unsuitable for the environment powered by outdoor batteries or car batteries and the requirements ...

AI Technical Summary

Problems solved by technology

The detectors in the prior art are based on the structure of the traditional high-voltage power supply module and the CAMAC / VME data acquisition system, which is not only expensive, but also has high power consumption and large volume, and is completely unsuitable for the environment powered by outdoor batteries or car batteries and the requirements for portability.

Images