Time sequence control logic and signal processing algorithm suitable for pulsed optically stimulated luminescence technique-based quasi-real-time dose rate measuring devices

Abstract

The invention relates to the technical field of nuclear radiation detection and provides time sequence control logic and signal processing algorithm suitable for pulsed optically stimulated luminescence technique-based quasi-real-time dose rate measuring devices. The time sequence control logic provided by the invention has the beneficial effects that a same reference clock is adopted as a reference to generate input pulse signals of a laser, a shutter, a photomultiplier and a counter; and the precise time sequence control of the laser, the shutter, the photomultiplier and the counter can be realized by each pulse signal through setting the number of skipped reference pulses and the relative time delay relative to the reference clock. The signal processing algorithm provided by the invention has the beneficial effects that various dynamic and static backgrounds are considered; the relationship between cumulative dose and count value is given by linear fitting results of experimental data; the cumulative dose loss caused by each dose rate measurement is compensated; and therefore, the quasi-real-time dose rate can be accurately given.

Description

technical field [0001] The invention relates to the technical field of nuclear radiation detection, in particular to a timing control logic and signal processing algorithm suitable for a quasi-real-time dose rate measurement device based on pulse optical luminescence technology. Background technique [0002] al 2 o 3 Optically luminescent materials such as :C have the characteristics of high sensitivity, wide linear range, fast dose readout speed, repeatable reading, and annealing without heating. They have been widely used in the field of personal dose monitoring. With the accumulation of practical application experience of optically luminescent materials , Al 2 o 3 Optically luminescent materials such as :C have also begun to be used for quasi-real-time dose rate measurement. [0003] The quasi-real-time dose rate measurement device based on pulsed optical luminescence technology has a complex structure, and the laser, shutter, gated photomultiplier tube and counter ne...

AI Technical Summary

Problems solved by technology

[0003] The quasi-real-time dose rate measurement device based on pulsed optical luminescence technology has a complex structure, and the laser, shutter, gated photomultiplier tube and counter need to be controlled according to a certain sequence in time, and the sequence control logic is complex

Images