Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

High-sensitivity wide-range X-gamma ambient dose equivalent rate monitor probe

A peripheral dose equivalent, wide-range technology, used in dosimeters, instruments, measuring devices, etc., can solve the problems of not meeting the measurement requirements well, the energy is not wide, the sensitivity of the instrument is low, etc., to suppress the low-energy photon response is too large. , the effect of improving the angular response

Active Publication Date: 2011-01-05
上海新漫传感科技有限公司
View PDF4 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high-sensitivity wide-range X-γ peripheral dose equivalent rate meter probe, which is used to solve the existing problems of the existing dose rate meter, such as low instrument sensitivity, low energy response, narrow range, and poor performance. Problems meeting measurement requirements

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-sensitivity wide-range X-gamma ambient dose equivalent rate monitor probe
  • High-sensitivity wide-range X-gamma ambient dose equivalent rate monitor probe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] In this embodiment, the probe front cover 1 is made of stainless steel, the shielding shell 2 is made of aluminum, and the first light guide 4 and the first light guide 7 are made of optical-grade silicone oil. The size of the thallium-doped sodium iodide scintillator 3 is Φ40×3mm, the size of the plastic scintillator 5 is Φ75×75mm, and the front, side and rear ends of the plastic scintillator 5 are respectively covered with 2mg / cm 2 、1mg / cm 2 and 5mg / cm 2 The thick silver-doped zinc sulfide scintillator 6 and the photomultiplier tube 8 adopt Beijing Hamamatsu CR105 photomultiplier tube.

[0034] According to the above-mentioned design scheme, a corresponding composite probe is formed (the specific connection relationship is as described above, and will not be repeated here), and the probe is measured by corresponding experiments. 137 Under the Cs source, the measured gamma sensitivity is 2000CPS / (μSv h -1 ), the energy range is 40keV-10MeV, and the dose rate is nSv / ...

Embodiment 2

[0036] In this embodiment, the probe front cover 1 is made of stainless steel, the shielding shell 2 is made of ABS plastic with aluminized outer surface, and the first light guide 4 and the first light guide 7 are made of optical grade silicone oil. The size of the thallium-doped sodium iodide scintillator 3 is Φ75×2mm, the size of the plastic scintillator 5 is Φ90×90mm, and the front, side and rear ends of the plastic scintillator 5 are respectively covered with 3mg / cm 2 , 1.5mg / cm 2 and 6mg / cm 2 The thick silver-doped zinc sulfide scintillator 6 and the photomultiplier tube 8 are PHOTONIS XP5300 photomultiplier tubes.

[0037] According to the above-mentioned design scheme, a corresponding composite probe is formed (the specific connection relationship is as described above, and will not be repeated here), and the probe is measured by corresponding experiments. 137 Under the Cs source, the measured gamma sensitivity is 3000CPS / (μSv h -1 ), the energy range is 30keV-10MeV...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Thicknessaaaaaaaaaa
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a high-sensitivity wide-range X-gamma ambient dose equivalent rate monitor probe, which consists of a front cover of the probe, a shielding shell, thallium-doped sodium iodide scintillator, a first optical conductor, a plastic scintillator, a silver-doped zinc sulfide scintillator, a second optical conductor, a photomultiplier and a preamplifier circuit which are connected in turn. By the high sensitivity of the plastic scintillator and the energy compensation of the thallium-doped sodium iodide scintillator and the silver-doped zinc sulfide scintillator, the high-sensitivity wide-range X-gamma ambient dose equivalent rate monitor probe has the advantages of capacity of detecting the ambient dose equivalent rate of X-gamma rays under a wide-range high-dose mixed gamma radiation field, good energy response, high sensitivity and good angular response.

Description

technical field [0001] The invention relates to an X-γ radiation measuring device, in particular to a probe of an X-γ peripheral dose equivalent rate meter. Background technique [0002] Radiation environment and radiation protection are required in environmental monitoring, sanitation and epidemic prevention, non-destructive testing, industrial flaw detection, import and export commodity inspection, radiation medicine, building materials, petrochemical, geological survey, airports, stations, docks, ports, scrap steel, nuclear laboratories, etc. In the case of detection, an environmental-grade dose rate meter is required to measure the dose equivalent rate and absorbed dose rate. The measuring instrument is required to have a good energy response at 30KeV-7MeV (in addition to accurately measuring high-energy γ-rays, it must also be able to accurately measure low-energy X and γ-rays), good dose linearity, good angular response, and high sensitivity. [0003] Existing dose ra...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01T1/02G01T1/20
CPCG01T1/023
Inventor 宋建安赵文渊徐强李兆龙尹旺明陈永林
Owner 上海新漫传感科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com