X-ray tube and mobile CT scanner based on LaB6 nano material heat emission

X-ray tube and mobile CT scanner based on LaB6 nano material heat emission

CN
  • CN 103,337,442 B
  • Filed: 04/27/2013
  • Issued: 06/08/2016
  • Est. Priority Date: 04/27/2013
  • Status: Active Grant
First Claim
Patent Images

1. the X-ray tube based on LaB6 nano material heat emission, it is characterised in that including:

  • anode, negative electrode and shell;

    Described shell is used for supporting described anode and described negative electrode, and makes working environment and the external insulation of described anode and described negative electrode, and keeping described working environment is vacuum;

    Described negative electrode adopts LaB6 nano material to make, the heat emission face of the described negative electrode that employing LaB6 nano material is made is continuous level, and described negative electrode is when being heated to the operating temperature of LaB6 nano material, anode described in the electron bombardment of heat emission is to produce X ray;

    Described anode is fixed anode or rotatable anode;

    Described fixed anode includes;

    fixing copper anode body and be fixed on the tungsten alloy target surface on described copper anode body;

    Described tungsten alloy target surface relative reference direction is formed with predetermined target surface inclination angle, and described reference direction is vertical with electron impact direction;

    Described target surface inclination angle is 11 degree;

    Described X-ray tube saturation emission electric current is be more than or equal to 10mA;

    And described X-ray tube focus projection spot size 1.2 �



    1.2mm2;

    The thickness of described tungsten alloy target surface is 400-500um;

    Described X-ray tube total length less than or equal to 120mm, and/or, the maximum gauge of described X-ray tube less than or equal to 60mm, and/or, the concentricity of described X-ray tube less than 1, and/or, the distance of described anode and described negative electrode is less than or equal to 10um.

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