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High-range ray rapid measurement device and measurement method thereof

A measuring device and high-range technology, which is applied to measuring devices, radiation measurement, X/γ/cosmic radiation measurement, etc. Measurement range, accurate measurement results, and the effect of improving performance

Inactive Publication Date: 2017-09-12
SHANGHAI ERGONOMICS DETECTING INSTR
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Problems solved by technology

[0004] The present invention aims at the shortcomings of the prior art ray detectors, such as few types of measurement rays, low measurement range, and relatively poor response to low-energy energy, etc., and aims to provide a low-energy ray with many types of measurement rays, which can increase the measurement range and the energy of low-energy rays below 100keV. High range ray fast measuring device for response time

Method used

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  • High-range ray rapid measurement device and measurement method thereof
  • High-range ray rapid measurement device and measurement method thereof

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Embodiment Construction

[0029] The preferred embodiments are given below, and the present invention will be described more clearly and completely in conjunction with the accompanying drawings.

[0030] Such as figure 2 Shown is the high-range ray rapid measurement device of this embodiment. The high-range ray rapid measurement device of this embodiment is electrically connected in series with a main detector 10 , an operational amplifier unit 20 , an analog-to-digital conversion unit 30 , a control unit 40 and a multi-stage output high-voltage power supply 50 . In a preferred embodiment, the control unit 40 is a 200M high-speed CPU.

[0031] The main detector 10 has a plastic scintillator 11 , at least one energy compensation sheet 12 closely attached to the plastic scintillator 11 , and a photomultiplier tube 13 electrically connected in series between the plastic scintillator 11 and the operational amplifier unit 20 . In one embodiment, the plastic scintillator 11 is a plastic scintillator with ...

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Abstract

The invention discloses a high-range ray rapid measurement device and a measurement method thereof. The measurement device is provided with a main detector, an operational amplifier unit, an analog-digital conversion unit and a control unit which are sequentially and electrically connected in series. The main detector is provided with a plastic scintillator; the main detector is provided with at least one energy compensating plate clung and fixed to the ray incident end of the plastic scintillator; the energy compensating plate is provided with a base material main body made of an acrylic photoconductive material, and an outer coating formed by spraying zinc sulfide on the outer surface of the base material main body. The high-range ray rapid measurement device disclosed by the invention provides a high-range ray rapid measurement device which can measure various rays and can improve a measurement range and energy response time of low-energy rays of 100keV or lower.

Description

technical field [0001] The invention relates to the technical field of high-range ray rapid measurement, in particular to a high-range ray rapid measurement device and a measurement method thereof. Background technique [0002] At present, both hospital X-ray machines and industrial flaw detection X-ray machines use high-dose short-time exposure technology to image the measured object. Among them, the exposure time of the X-ray machine is 20ms to 5s, and the energy is below 100keV. In the prior art, most of detectors such as Geiger-Miller detectors, ionization chamber detectors, cesium iodide detectors, semiconductor detectors, sodium iodide detectors or plastic scintillator detectors are used to detect X, γ, Beta rays are used for measurement, and the measurement time of these detectors is above 200ms, so it is impossible to complete the measurement of fast pulses below 200ms. [0003] Such as figure 1 As shown, the plastic scintillator detector is mainly composed of a p...

Claims

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Application Information

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IPC IPC(8): G01T1/203
CPCG01T1/203
Inventor 张志勇李晨李旭
Owner SHANGHAI ERGONOMICS DETECTING INSTR
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