A rapid method for electron beam energy check.
Med Phys
; 19(6): 1451-3, 1992.
Article
em En
| MEDLINE
| ID: mdl-1461209
ABSTRACT
Assessment of electron beam energy and its long term stability is part of standard quality assurance practice in radiation oncology. Conventional depth-ionization or depth-film density measurements are time consuming both in terms of data acquisition and analysis. A procedure is described utilizing ionization measurements at two energy specific depths. It is based on a linear relationship between electron beam energy and its practical range. Energy shifts within the range covered by the two measurement depths are easily resolved. Within a range of +/- 0.50 MeV (+/- 1.30 MeV) around the established mean incident energy of 5.48 MeV (20.39 MeV), the method accuracy is better than 0.10 MeV.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Aceleradores de Partículas
/
Radioterapia de Alta Energia
/
Elétrons
Limite:
Humans
Idioma:
En
Revista:
Med Phys
Ano de publicação:
1992
Tipo de documento:
Article