Hostname: page-component-848d4c4894-2pzkn Total loading time: 0 Render date: 2024-05-22T02:23:22.343Z Has data issue: false hasContentIssue false

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

Published online by Cambridge University Press:  20 July 2007

C.S. Wong
Affiliation:
Plasma Research Laboratory, Physics Department, University of Malaya, Kuala Lumpur, Malaysia
H.J. Woo
Affiliation:
Faculty of Engineering and Science, University Tunku Abdul Rahman, Kuala Lumpur, Malaysia
S.L. Yap
Affiliation:
Plasma Research Laboratory, Physics Department, University of Malaya, Kuala Lumpur, Malaysia

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.

Type
Research Article
Copyright
© 2007 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)