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Production method for boron-10 element used for neutron detector

A production method and detector technology, which are applied in the measurement of neutron radiation, instruments, measurement devices, etc., can solve the problems of heavy metal substrates, limited number of neutrons, and large volumes.

Inactive Publication Date: 2015-12-09
时天成
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are: the metal substrate is heavy and bulky, and the number of neutrons captured is limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Boron powder is uniformly sprayed onto the graphene transparent conductive film by electrostatic spraying method, protected by high-purity nitrogen, heated at 50°C for 2 hours, boron powder enters the film through thermal diffusion, and the penetration depth is 0.5 microns; boron coating The thickness is 1 micron.

Embodiment 2

[0021] Boron powder is evenly sprayed onto the graphene transparent conductive film by electrostatic spraying method, protected by high-purity nitrogen, and heated at 100°C for 6 hours, and the boron powder enters the film through thermal diffusion, and the penetration depth is 0.7 microns; boron coating The thickness is 2 microns.

Embodiment 3

[0023] Boron powder is evenly sprayed onto the graphene transparent conductive film by electrostatic spraying method, protected by high-purity nitrogen, heated at 150°C for 10 hours, boron powder enters the film through thermal diffusion, and the penetration depth is 1 micron; boron coating The thickness is 3 microns.

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Abstract

The invention provides a production method for a boron-10 element used for a neutron detector, relates to a production method for an element acting as a neutron detector cathode, and mainly aims at solving problems that existing neutron detectors are high in conductive substrate mass and limited in the number of the captured neutrons. According to the method, a graphite vinyl transparent film is adopted to act as a conductive substrate, boron powder is unformly sprayed on the graphite vinyl transparent conductive film by adopting an electrostatic spraying method and protected by high-purity nitrogen and heated for 2-10h under temperature of 50-150 DEG C, boron powder enters the film through thermal diffusion and entering depth is 0.5-1 micron; and thickness of a boron coating layer is 1-3 microns. Advantages are that the production method is applied to a high-dose radiation area.

Description

Technical field: [0001] The invention relates to a method for the production of an element serving as a cathode for a neutron detector. Background technique: [0002] 10 B+n→ 7 Li+ 4 he [0003] After boron-10 captures a neutron, it becomes a helium particle through reaction. According to this principle, a neutron counter can be made. Neutron counters are used in a wide range of applications, such as radiation monitoring of nuclear waste, and homeland security applications. [0004] In the Chinese patent CN102967875A, J.M. Lustig pointed out that the conductive substrates such as aluminum, nickel, titanium and boron powder are contacted with boron powder at high temperature for a long time, and the boronization of the substrate is realized by thermal diffusion method to prepare the boron coating for capturing neutrons. layers; a conductive substrate and boron coating as the cathode, and a central processing mechanism as the anode, forming a neutron detector. Its disadv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T3/00
Inventor 时天成
Owner 时天成
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