A low energy tunable pulsed X-ray source based on the pseudospark electron beam
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, thi...
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Cambridge University Press
2007
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Online Access: | http://eprints.um.edu.my/12785/ http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=1316372&fulltextType=RA&fileId=S0263034607000614 http://dx.doi.org/10.1017/S0263034607000614 |
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my.um.eprints.127852015-02-17T03:36:12Z http://eprints.um.edu.my/12785/ A low energy tunable pulsed X-ray source based on the pseudospark electron beam Wong, C.S. Woo, H.J. Yap, S.L. Q Science (General) QC Physics 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. Cambridge University Press 2007 Article PeerReviewed 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 http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=1316372&fulltextType=RA&fileId=S0263034607000614 http://dx.doi.org/10.1017/S0263034607000614 |
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Q Science (General) QC Physics Wong, C.S. Woo, H.J. Yap, S.L. A low energy tunable pulsed X-ray source based on the pseudospark electron beam |
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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. |
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Article |
author |
Wong, C.S. Woo, H.J. Yap, S.L. |
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Wong, C.S. Woo, H.J. Yap, S.L. |
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Wong, C.S. |
title |
A low energy tunable pulsed X-ray source based on the pseudospark electron beam |
title_short |
A low energy tunable pulsed X-ray source based on the pseudospark electron beam |
title_full |
A low energy tunable pulsed X-ray source based on the pseudospark electron beam |
title_fullStr |
A low energy tunable pulsed X-ray source based on the pseudospark electron beam |
title_full_unstemmed |
A low energy tunable pulsed X-ray source based on the pseudospark electron beam |
title_sort |
low energy tunable pulsed x-ray source based on the pseudospark electron beam |
publisher |
Cambridge University Press |
publishDate |
2007 |
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http://eprints.um.edu.my/12785/ http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=1316372&fulltextType=RA&fileId=S0263034607000614 http://dx.doi.org/10.1017/S0263034607000614 |
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13.18916 |