High-energy gamma radiation detecting device

Abstract

The invention relates to a high-energy gamma radiation detecting device, comprising a monitoring host and a detecting structure, wherein the detecting structure comprises a silicon semiconductor detector, a charge sensitive amplifier and a main amplifier in sequential signal connection; and the main amplifier is connected to the detecting host. The high-energy gamma radiation detecting device hasthe following beneficial effects that by adopting the semiconductor detector, in comparison with a GM counting tube which usually needs hundreds of volts, the design of the invention does not need a high working voltage but only needs 2.7 V to 6.0 V; the GM counting tube is blocked in the case of irradiation at a high dose rate, the output pulse frequency is low, the high dose rate is hard to measure, however, the semiconductor detector has a wide range, the output pulse width is 20 mus, the frequency can reach 5*10<4> / s, and measurement blocking at a high dose rate is avoided. The all-solidstructure is suitable for working in a vacuum environment without air, and has the ability to work at extreme temperatures, which is beneficial for optimal function design.

Description

technical field [0001] The invention belongs to the field of ray detection, and in particular relates to a high-energy gamma radiation detection device. Background technique [0002] The high-energy gamma radiation detection device in the experimental cabin is a high-energy gamma radiation detector. Conventionally used gamma detectors include semiconductor detectors, ionization chambers, G-M counter tubes, proportional counter tubes, scintillators, etc. The measurement range is 0.01uGy / h-300mGy / h, and the energy range: 50Kev-7Mev, which cannot meet the needs of space capsules. Special requirements such as high vacuum, high radiation environment, temperature change and volume weight in the interior and space environment. Contents of the invention [0003] Aiming at the defects existing in the prior art, the object of the present invention is to provide a high-energy gamma radiation detection device. The technical solution does not require a high operating voltage, has a wi...

AI Technical Summary

Problems solved by technology

Conventionally used gamma detectors include semiconductor detectors, ionization chambers, G-M counter tubes, proportional counter tubes, scintillators, etc. The measurement range is 0.01uGy / h-300mGy / h, and the energy range: 50Kev-7Mev, which cannot meet the needs of space capsules. Special requirements such as high vacuum, high radiation environment, temperature change and volume weight in interior and space environments

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