A γ-Radiation Detector Convenient for Combination

Abstract

The invention provides a gamma radioactive detector convenient to combine. The gamma radioactive detector comprises a plastic scintillator in the shape of an n-prism, n is a natural number greater than 4, and at least one silicon photomultiplier is arranged on one side surface of the plastic scintillator; a circuit board is arranged on the silicon photomultiplier; a signal leading-out mechanism isarranged on the circuit board; the gamma radioactive detector has the advantages that the detector is convenient to combine, can be used in a wide temperature range, can realize communication and power supply through serial connection of cables with standard interfaces such as RJ45 and the like, and can combine a plurality of detectors into a small-area or any large-area or any shape detector tofinish detection tasks with different requirements.

Description

technical field [0001] The invention relates to the field of radiation detection, in particular to a gamma radiation detector which is easy to assemble. Background technique [0002] During the overhaul of the nuclear power plant reactor, the personnel air-tight airlock door is the passage for the staff to enter and exit the nuclear island, and it is the place to initially monitor whether the personnel returning from the reactor building and the equipment carried by the personnel are contaminated by radioactivity. A high-sensitivity gamma detection device like the C1 door (personnel whole-body gamma contamination monitor) cannot be placed in front of the airtight door or between the two gates. During each overhaul, only relatively low-sensitivity gamma dose rate meters and Surface contamination measuring instruments are used to check whether personnel and equipment are contaminated by radioactivity. The whole process is labor-intensive and time-consuming. Especially when the...

AI Technical Summary

Problems solved by technology

[0006] The gamma radiation detector formed by the combination of plastic scintillator and photomultiplier tube, in addition to the above-mentioned C1 gate, columnar emergency radiation monitor, also has a large range of applications, such as CPO (tools and small items gamma contamination measuring instrument ), CSM (vehicle and pedestrian gamma radiation measurement device), etc., they are all faced with the combination of a certain volume of plastic scintillators and photomultiplier tubes. Inherent problems such as being greatly affected by temperature and weak shock and vibration resistance

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