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Acta Optica Sinica, Volume. 42, Issue 22, 2234001(2022)

Electro-Optical Design of Focusing System for Rod-Anode X-Ray Sources

Lina Shi1,2, Junbiao Liu1,2、*, Geng Niu1, Zengya Dong1, Chenhui Deng1, and Li Han1,2
Author Affiliations
  • 1Institute of Electrical Engineering Chinese Academy of Sciences, Beijing 100190, China
  • 2University of Chinese Academy of Sciences, Beijing 100049, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (11)
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    References (16)
    Cited By (2)
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    Figures & Tables(11)
    Rod anode X-ray source model. (a) Structural diagram; (b) optical path diagram of electron beam

    Fig. 1. Rod anode X-ray source model. (a) Structural diagram; (b) optical path diagram of electron beam

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    Relationship between l/Cs and Vr/（NI）2

    Fig. 2. Relationship between l/Cs and Vr/（NI）2

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    Structural diagram of magnetic lens

    Fig. 3. Structural diagram of magnetic lens

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    Arrangement of magnetic lens

    Fig. 4. Arrangement of magnetic lens

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    Axial field distribution of magnetic lens

    Fig. 5. Axial field distribution of magnetic lens

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    Trajectories of electrons in each direction (x, y, r) of magnetic lens

    Fig. 6. Trajectories of electrons in each direction (x, y, r) of magnetic lens

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    Relationship between beam spot and acceleration voltage

    Fig. 7. Relationship between beam spot and acceleration voltage

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    Experimental platform for rod anode X-ray source

    Fig. 8. Experimental platform for rod anode X-ray source

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    Double wire image quality meter

    Fig. 9. Double wire image quality meter

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    Line pair imaging at different high voltages. (a) 50 kV; (b) 70 kV; (c) 90 kV; (d) 110 kV; (e) 130 kV

    Fig. 10. Line pair imaging at different high voltages. (a) 50 kV; (b) 70 kV; (c) 90 kV; (d) 110 kV; (e) 130 kV

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    • Table 1. List of LaB6 electron gun properties at different acceleration voltages

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      Table 1. List of LaB6 electron gun properties at different acceleration voltages

      Accelerating

      voltage /kV

      		Grid voltage /VCross spot /μmPosition of cross spot /mmTotal beam /mAMaximum brightness /（105A·cm-2·sr-1）Maximum beam half angle /mrad
      50-3031.500.970.223.281.22
      70-4226.600.940.377.701.20
      90-5423.340.930.5311.271.20
      110-6520.860.950.7414.011.21
      130-6720.820.981.2117.351.09
      160-7519.040.981.6522.281.06
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    Lina Shi, Junbiao Liu, Geng Niu, Zengya Dong, Chenhui Deng, Li Han. Electro-Optical Design of Focusing System for Rod-Anode X-Ray Sources[J]. Acta Optica Sinica, 2022, 42(22): 2234001

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    Paper Information

    Category: X-Ray Optics

    Received: Apr. 14, 2022

    Accepted: May. 23, 2022

    Published Online: Nov. 7, 2022

    The Author Email: Liu Junbiao (liujb@mail.iee.ac.cn)

    DOI:10.3788/AOS202242.2234001

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology