Alpha/beta pollution meter for surfaces of hands and feet

Abstract

The invention discloses an alphagamma pollution meter for surfaces of hands and feet. The meet comprises a casing, a foot detector, a touch display screen and a hand detector; each of the foot and hand detectors comprises a flickering detector, a flickering crystal and a signal collection and processing unit; the flickering detector collects a light signal emitted by the flickering crystal, and sends the light signal to the signal collection and processing unit; and the casing internally comprises a communication module, a signal processing circuit, a power supply module and a data communication module, the signal collection and processing unit is connected with the power supply module and the communication module, the communication module is connected with the signal processing circuit todiscriminate detected alpha and / or gamma ray signals, and the signal processing circuit is connected with the data communication module to transmit an obtained result to the touch display screen. Themeter of an integrated design is characterized by man-machine interaction response, automatic measurement data storage, large measurement area, high sealing performance, easy decontamination and simultaneous measurement of alpha and beta radioactive pollution.

Description

technical field [0001] The invention belongs to an instrument for measuring pollution levels, which is suitable for sanitary exits of radioactive control areas such as nuclear industry, nuclear medicine, and nuclear research institutions. When workers exit the radioactive control area, they can measure the surface of their hands and feet and judge Whether there is α and (or) β radioactive contamination. Background technique [0002] The hand and foot surface αβ pollution measuring instrument indirectly measures the pollution of the hands and feet surface by measuring α and β rays, so as to achieve the purpose of monitoring, so as to ensure the personal safety of the staff. [0003] At present, there are two types of measuring instrument detectors used in existing products on the market: fluid proportional counters and composite scintillation detectors. Among them, the fluid-type proportional counter needs to be fed with P10 gas when working, and the use of extremely thin tu...

AI Technical Summary

Problems solved by technology

Among them, the fluid-type proportional counter needs to be fed with P10 gas when working, and the use of extremely thin tungsten wire is easy to damage and the sealing is difficult to guarantee; in addition, most pollution detectors cannot measure α and β radioactive pollution at the same time, and the detection area is small. High cost and low efficiency during work

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