Uneven measurement method for single-ball multi-counter probe

A measurement method and counter technology, applied in the field of sub-measurement, can solve problems such as unsatisfactory matching

Inactive Publication Date: 2006-09-27
CHINA INST FOR RADIATION PROTECTION
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The measurement results of this equal division method are calculated by the spectrum analysis software and the spectrum analysis results are not in good agreement with the energy spectrum of the neutron source.

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
  • Uneven measurement method for single-ball multi-counter probe
  • Uneven measurement method for single-ball multi-counter probe
  • Uneven measurement method for single-ball multi-counter probe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The present invention is described in detail below in conjunction with embodiment.

[0014] The single-sphere multi-counter probe unequal measurement method involved in the present invention is to sensitively position three slender cylindrical thermal neutrons 3 The He proportional counters 1 are installed in a moderating sphere 2 at equal intervals in the perpendicular direction, and the diameter of the moderating sphere 2 is generally selected to be between 15 and 30 cm. Because, when the diameter of the sphere is less than 15cm, the fluence energy response is not ideal; when the diameter of the sphere is greater than 30cm, it is not easy to carry. In this embodiment, a polyethylene spherical moderator 2 with a diameter of 25 cm is selected, and the distance between the axes of the three counters 1 is 1.4 cm to measure the distribution of thermal neutrons in the sphere. In data processing, the unequal division method is used to divide the sphere into several areas of...

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

No PUM Login to view more

Abstract

This invention relates to an uneven measurement method for single-ball multi-counter probe. Wherein, arranging three slim column thermal neutron position sensitive counters into a slow-down ball equispacedly and vertical mutually; measuring the distribution of thermal neutron; dividing axially the ball into out-thin-inner-thick some spherical shells unequally in data process, setting the thickness of outermost layer more than 5mm and other layers with thickness by equidifferent values; summating the number of every counter; calculating the opposite response function by a spectrum deconvolution software. The result is very close to the neutron source energy spectrum.

Description

technical field [0001] The invention relates to the field of neutron dose monitoring, in particular to a single-ball multi-counter probe unequal measurement method for a neutron dose meter and an energy spectrum meter. Background technique [0002] A variety of neutron dosimeters and energy spectrum instruments have been developed for decades. As far as neutron dosimeters are concerned, no matter which detector is used, what design is adopted for the probe, or various data processing methods are For this improvement, if a single-counter single-moderator is used, none of the instruments can be satisfactory, mainly due to the unsatisfactory dose energy response. The reason is that the energy range of the neutron radiation field is often relatively wide, and the neutron fluence dose conversion factor has almost two orders of magnitude difference with the change of neutron energy. Most of the counters used are sensitive to thermal neutrons. The neutron sensitivity is low, so it...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G01T1/02G01T1/18G01T3/00
Inventor 李桃生杨连珍侯雪莉马吉增
Owner CHINA INST FOR RADIATION PROTECTION
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap