A sort of pulsed microfocal x-ray source

Kaige Wang; Baoping Guo; Jinchuan Guo; Ji Li; Qinlao Yang; Xiaomei Kuo; Junlan Zhou; Hanben Niu

doi:10.1117/12.725163

11 January 2007 A sort of pulsed microfocal x-ray source

Kaige Wang, Baoping Guo, Jinchuan Guo, Ji Li, Qinlao Yang, Xiaomei Kuo, Junlan Zhou, Hanben Niu

Proceedings Volume 6279, 27th International Congress on High-Speed Photography and Photonics; 627914 (2007) https://doi.org/10.1117/12.725163
Event: 27th International congress on High-Speed Photography and Photonics, 2006, Xi'an, China

Abstract

A sort of pulsed microfocus x-ray source has been theoretically and experimentally studied. The portable x-ray source is composed of three portions: LaB6 crystal cathode electron gun emitting system, electrostatic focusing system, and metal target system. The electrons are emitted form the hot crystal cathode, and controlled by modulated Wehnelt grid bias value and the ratio Dw/H, and concentrated by two-equal-radius-cylinder-electrodes focusing system. The x-ray photons are irradiated by high energy electron beam bombarding metal target. The new x-ray source's general-purpose capabilities such as pulsed radiation, focal spot size and luminance were preliminary tested. When the temperature of LaB6 cathode is about 1900K and partial pressures being kept below 10-7 torr, the minimal focus diameter is merely about 10 microns with the pulse width 65ms.

Citation Download Citation

Kaige Wang, Baoping Guo, Jinchuan Guo, Ji Li, Qinlao Yang, Xiaomei Kuo, Junlan Zhou, and Hanben Niu "A sort of pulsed microfocal x-ray source", Proc. SPIE 6279, 27th International Congress on High-Speed Photography and Photonics, 627914 (11 January 2007); https://doi.org/10.1117/12.725163

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