Alpha particle noncontact measuring device and method

An alpha particle, non-contact technology, applied in the field of radiation detection, can solve problems such as danger, short range, rapid determination of accident rescue plans, and difficulties in protecting nuclear personnel, achieving the effects of easy replacement, suppression of interference, and improvement of accuracy

Active Publication Date: 2016-11-09
中国人民解放军火箭军装备研究院第六研究所
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Problems solved by technology

However, they can be dangerous if inhaled or injected
[0003] Due to the short range of α particles in the air (the range of 5 MeV α particles in the air is about 3.5cm), the traditional α aerosol test method cannot obtain the radioactivity data of α aerosols in real time due to the need for sampling. Rapid identification of accident rescue plans and protection of nuclear personnel from large doses of internal radiation pose difficulties

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  • Alpha particle noncontact measuring device and method
  • Alpha particle noncontact measuring device and method
  • Alpha particle noncontact measuring device and method

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[0036] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0037] According to one aspect of the present invention, a kind of alpha particle non-contact measuring device is provided, figure 1 is a schematic structural view of a non-contact measurement device for solid-liquid alpha particles according to an embodiment of the present invention, figure 2 Schematic diagram of the structure of a non-contact measuring device for gaseous alpha particles according to an embodiment of the present invention, such as figure 1 and figure 2 As shown, the alpha particle non-contact measurement device includes a plurality of ultraviolet reflective flat mirrors, at least two ultraviolet sensitive photomultiplier tubes, a high voltage module, at least two fan-in and fan-out units, at least two...

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Abstract

The invention discloses an alpha particle noncontact measuring device and method. The alpha particle noncontact measuring device comprises a number of ultraviolet reflection plane mirrors, at least two ultraviolet sensitive photomultiplier tubes, a high voltage module, at least two fan-in and fan-out units, at least two discriminators, a coincidence unit, a multichannel analyzer and a controller. The invention further provides a method using the alpha particle noncontact measuring device to carry out noncontact measurement on alpha particles. According to the invention, the property that the alpha particles produce ultraviolet light in the air is used, and noncontact measurement is carried out on the alpha particles.

Description

technical field [0001] The invention relates to the technical field of radiation detection, in particular to a non-contact measuring device and method for alpha particles. Background technique [0002] Alpha (α) particles are positively charged high-energy particles (He nuclei), usually produced when some heavy atoms (such as uranium, radium) or some artificial nuclides decay. Alpha particles lose energy quickly during the process of running in the medium, so they cannot penetrate very far, and a thin piece of paper can block alpha particles. However, even if it cannot penetrate deeply, it will still cause damage to the tissue when the α particle penetrates into the tissue. Alpha particles are usually completely absorbed by the dead skin on the outer layer of the human body, so alpha particles do not pose a danger outside the human body. However, they can be dangerous if inhaled or injected. [0003] Due to the short range of α particles in the air (the range of 5 MeV α p...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T1/16
CPCG01T1/16
Inventor 程金星朱左明张斌吴友朋温伟伟刘军辉赵锋涛周文平胡玉新吕亚超徐荣政李凤强
Owner 中国人民解放军火箭军装备研究院第六研究所
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