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Multichannel intelligent BF3 neutron yield monitor

A multi-channel, monitor technology, used in the measurement of neutron radiation, instruments, scientific instruments, etc., can solve the problems of insufficient monitoring of low-yield coverage, improve the dynamic range of measurement, solve serious accumulation, and exclude gamma rays. the effect of interference

Active Publication Date: 2020-09-25
LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

There are many methods for monitoring pulse neutron yield, such as the common activation measurement method. Although the activation measurement method has high measurement accuracy, this method is only suitable for use under the condition of high neutron yield. For low yield Coverage monitoring still has certain deficiencies

Method used

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  • Multichannel intelligent BF3 neutron yield monitor
  • Multichannel intelligent BF3 neutron yield monitor
  • Multichannel intelligent BF3 neutron yield monitor

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Experimental program
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Embodiment Construction

[0025] The present invention will be further described below in conjunction with embodiment and accompanying drawing.

[0026] Such as figure 1 and 2 As shown, a multi-channel intelligent BF 3 The neutron output monitor has a structure including a platform car A. The bottom side of the platform car A is provided with four moving wheels A1, and the upper side is provided with a bracket A2, wherein the upper end of the bracket A2 is fixedly installed with a slowing device B, and the slowing device The structure of B includes a cylindrical outer casing 1, the outer casing 1 has a moderating chamber 1a, and three No. 1 pipes 21, one No. 2 pipe 31 and two No. The diameter of No. pipe 21 is greater than the diameter of No. two pipe 31, and the diameter of No. two pipe 31 is greater than the diameter of No. three pipe 41, and the outer side walls of No. one pipe 21, No. two pipe 31 and No. three pipe 41 are in line with the above-mentioned Moderator layer 5 is filled between the i...

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Abstract

The invention discloses a multichannel intelligent BF3 neutron yield monitor, which comprises a platform vehicle. A control box is mounted in the platform vehicle; a bracket is fixedly mounted on theupper side of the platform vehicle; an outer shell is mounted at the top end of the bracket; the outer shell is provided with a tubular slowing-down cavity; at least two types of BF3 counting tubes arranged in the axial direction of the slowing-down cavity are arranged in the slowing-down cavity; the BF3 counting tubes have different diameters, the BF3 counting tubes are connected with the controlbox through high-voltage coaxial cables, and slowing layers formed by filling neutron slowing materials are arranged between the outer walls of the BF3 counting tubes and the inner wall of the slowing-down cavity. The multichannel intelligent BF3 neutron yield monitor has the beneficial effects that the measurement dynamic range can be greatly improved, neutron signals in gamma signals can be effectively distinguished, and the interference of gamma rays is eliminated.

Description

technical field [0001] The invention relates to a neutron yield monitoring device, in particular to a multi-channel intelligent BF 3 Neutron Yield Monitor. Background technique [0002] As a neutron calibration source, the neutron generator needs to monitor the neutron yield. There are many methods for monitoring pulse neutron yield, such as the common activation measurement method. Although the activation measurement method has high measurement accuracy, this method is only suitable for use under the condition of high neutron yield. For low yield There are still some deficiencies in coverage monitoring. [0003] Therefore, it is urgent to develop a neutron yield monitor with a large dynamic range. Contents of the invention [0004] In view of this, the present invention provides a multi-channel intelligent BF 3 The neutron yield monitor can effectively improve the coverage of the whole monitor to measure the neutron yield. [0005] To achieve the above object, the te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T3/00
CPCG01T3/00
Inventor 肖云青唐琦宋仔峰易涛詹夏宇刘中杰陈家斌
Owner LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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