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Proceedings Paper

Influence of backscattered electrons on x-ray tube output
Author(s): Luis M. N. Tavora; Walter B. Gilboy; Edward J. Morton
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Paper Abstract

When energetic are incident on medium-to-high Atomic Number absorbers a substantial fraction are backscattered. This phenomenon is responsible for several undesirable effects in x-ray-tubes, in particular for a reduction in the x-ray output. The extend of this shortfall has been estimated by using Monte Carlo simulation by starting electrons at increasing depth inside the anode. The results indicate that output enhancements of nearly 50 percent could be achieved in principle if the electrons wasted in backscatter events could be trapped inside the anode. To test out this idea a further set of simulations were done by considering a novel anode geometry. Results showed that x-ray tube efficiencies might be substantially enhanced by this approach.

Paper Details

Date Published: 18 December 2000
PDF: 7 pages
Proc. SPIE 4142, Penetrating Radiation Systems and Applications II, (18 December 2000); doi: 10.1117/12.410548
Show Author Affiliations
Luis M. N. Tavora, Escola Superior de Tecnologia e Gestao de Leiria and Univ. de Coimbra (Portugal)
Walter B. Gilboy, Univ. of Surrey (United Kingdom)
Edward J. Morton, Univ. of Surrey (United Kingdom)


Published in SPIE Proceedings Vol. 4142:
Penetrating Radiation Systems and Applications II
F. Patrick Doty; H. Bradford Barber; Hans Roehrig; Edward J. Morton, Editor(s)

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