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.Abstract
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 |
|---|---|
| Funders: | UNSPECIFIED |
| 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 |
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