Variation in output factor caused by secondary blocking for 7-16 MeV electron beams
- 1 March 1979
- journal article
- Published by Wiley in Medical Physics
- Vol. 6 (2) , 137-139
- https://doi.org/10.1118/1.594545
Abstract
The effect of secondary blocking on the output for 7-16 MeV electron beams is investigated for the two most widely used methods of field shaping, i.e.,(a) shield on surface, and (b) shield at end of cone with subsequent air gap. For those two methods differences in output on the order of 10% are observed. These effects are explained in terms of the blocking geometry and its influence on scattered radiation.Keywords
Funding Information
- U.S. Public Health Service (S-T32-CA 09118-02)
- National Cancer Institute
- National Institutes of Health
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