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A built-in neutron element analysis device

A technology for neutron elements and analysis devices, which is applied in measurement devices, analysis materials, material analysis using wave/particle radiation, etc. The effect of reducing the interference ratio, reducing the interference noise, and reducing the installation area

Active Publication Date: 2021-05-11
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current products are all cross-belt type, and the detection device is large in size and needs to occupy a large installation space, and the large-volume device has more structural materials and high cost

Method used

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  • A built-in neutron element analysis device

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with specific examples.

[0024] Such as figure 1 The built-in neutron elemental analysis device shown includes a neutron source term system, a sample detection system, a shielding protection system and an energy spectrum analysis system. The neutron source item system includes a neutron generator 11, a neutron generator power supply control cabinet 1, a sample detection system includes a tested sample 4, an outer barrel 8, an inner barrel 3, and a gamma ray detector 6, and the energy spectrum analysis system includes multiple The channel analyzer 7 and the industrial control computer 2, the shielding protection system includes a gamma ray shielding layer 9, a detector protection layer 10 and an environment protection layer 5.

[0025] The neutron generator 11 is a D-T neutron generator, the output neutron energy is 14MeV, and the output direction is 4π direction, which is located above the inner barr...

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Abstract

The invention relates to a built-in neutron element analysis device, which is composed of a neutron source item system, a sample detection system, a shielding protection system and an energy spectrum analysis system. The neutrons emitted by the neutron source are used to excite the elements of industrial materials to be measured , the gamma rays generated are collected and analyzed by the detector, which can obtain the composition information of industrial materials and guide the production. The shielding protection system is used for the dose protection of the environment and human body and the protection of the detector. The present invention is based on the signal-to-interference ratio system optimization design method for the built-in neutron element analysis device, using the signal-to-interference ratio as the device design evaluation criterion, improving the overall signal-to-interference ratio of the system device, finally improving the detection level of the device, and more optimally guiding the production of industrial materials. The utility model has the advantages of miniaturization of the whole device, low cost, small installation space requirement and convenient installation.

Description

technical field [0001] The invention relates to the technical field of element detection, in particular to a built-in neutron element analysis device. Background technique [0002] Facing the current demands of industrialization, and aiming at problems such as environmental pollution and resource waste, it is necessary to grasp the content information of industrial materials, so as to realize the classification and use of industrial materials and optimize the guidance of production. At present, most industrial material factories analyze the composition content of industrial materials through laboratory chemical detection methods, including ICP-MS, flame atomic spectrometry, ion chromatography, etc. The above method requires sample preparation, takes a long time for detection and analysis, and cannot obtain real-time material composition information, and the detection samples are usually obtained by sampling methods, which are greatly affected by human factors. [0003] At t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N23/222
CPCG01N23/222
Inventor 黑大千李佳桐贾文宝汤亚军孙爱赟程璨
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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