A compact two-electrode field-emission X-ray source for soft X-ray spectroscopy applications

Journal of Synchrotron Radiation 2026 Open access

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Authors: Junlin Li, Yicheng Wang, Pengfei Yu, Jianwei Meng, Tsu‐Chien Weng
DOI: 10.1107/s160057752501166x
Cited by: 0

Abstract

Here, a compact two-electrode field-emission X-ray source employing a blade-type tungsten cathode was designed for soft X-ray spectroscopy. The device suppressed filament-derived optical and thermal background that is intrinsic to thermionic tubes, while providing stable and tunable output. The cathode–anode spacing was optimized and an optimal gap was identified at 150 µm, enabling the source to reach 400 µA at 4 kV without short circuits at

Fields of Study & Subjects

X-ray Spectroscopy and Fluorescence Analysis Electron and X-Ray Spectroscopy Techniques Advanced X-ray Imaging Techniques

Publication details

Journal / source
Journal of Synchrotron Radiation
Volume
33
Issue
2
Pages
374–381
Publication date
29 January 2026
Language
EN