A low energy tunable pulsed X-ray source based on the pseudospark electron beam

Wong, C.S. and Woo, H.J. and Yap, S.L. (2007) A low energy tunable pulsed X-ray source based on the pseudospark electron beam. Laser and Particle Beams, 25 (3). pp. 497-502. ISSN 0263-0346, DOI https://doi.org/10.1017/S0263034607000614.

Full text not available from this repository.
Official URL: http://journals.cambridge.org/action/displayAbstra...


A low energy pulsed X-ray source with 17 J electrical input energy has been constructed based on the vacuum spark configuration triggered by the pseudospark electron beam. With such a low input electrical energy, the frequently studied X-ray emitting vacuum spark plasma is not obtained. Instead, this configuration gives rise to a point-like electron beam-target pulsed X-ray source at the tip of the anode. Emission of X-ray is observed during the pre-breakdown phase. The X-ray spectrum is dominated by the characteristic line emission of the anode material. The total X-ray energy emission from the source can be estimated by assuming it to be a monochromatic point source. It is found to have an X-ray production efficiency of 0.1%, giving an average X-ray dosage of 18 mGy per pulse. X-ray radiography of small biological sample is demonstrated to illustrate a potential application of the present X-ray source.

Item Type: Article
Uncontrolled Keywords: Electron beam; Pseudospark; Pulsed X-ray source
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Divisions: Faculty of Science > Department of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 17 Feb 2015 03:36
Last Modified: 17 Feb 2015 03:36
URI: http://eprints.um.edu.my/id/eprint/12785

Actions (login required)

View Item View Item