Characterisation of the half-field beam penumbra for a variety of blocking set-ups
| Data(s) |
09/01/2015
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| Resumo |
Measurements of half-field beam penumbra were taken using EBT2 film for a variety of blocking techniques. It was shown that minimizing the SSD reduces the penumbra as the effects of beam divergence are diminished. The addition of a lead block directly on the surface provides optimal results with a 10-90% penumbra of 0.53 ± 0.02 cm. To resolve the uncertainties encountered in film measurements, future Monte Carlo measurements of halffield penumbras are to be conducted. |
| Formato |
application/pdf |
| Identificador | |
| Publicador |
Institute of Physics Publishing Ltd. |
| Relação |
http://eprints.qut.edu.au/80030/1/__staffhome.qut.edu.au_staffgrouph%24_hollambc_Desktop_1742-6596_573_1_012073.pdf DOI:10.1088/1742-6596/573/1/012073 Smith, Shaun, Kairn, Tanya, Crowe, Scott, Asena, Andre, & Trapp, Jamie (2015) Characterisation of the half-field beam penumbra for a variety of blocking set-ups. Journal of Physics: Conference Series, 573(1), 012073. http://purl.org/au-research/grants/ARC/LP110100401 WESLEY RESEARCH INST/LP110100401 |
| Direitos |
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. |
| Fonte |
School of Chemistry, Physics & Mechanical Engineering; Science & Engineering Faculty |
| Palavras-Chave | #029903 Medical Physics #radiotherapy #penumbra #half field |
| Tipo |
Journal Article |
