Physical aspects of the angle-beta concept in electron arc therapy

Journal Article · Sat Jun 01 04:00:00 EDT 1991 · International Journal of Radiation Oncology, Biology and Physics; (United States)

DOI:https://doi.org/10.1016/0360-3016(91)90246-Z· OSTI ID:5507563

Pla, M; Podgorsak, E B; Pla, C; Freeman, C R; Souhami, L; Guerra, J ^[1]

---

1. Department of Radiation Oncology, McGill University, Montreal, Quebec (Canada)

A technique for the determination of treatment parameters that are required to achieve a desired depth dose distribution in electron arc therapy is discussed and a method for calculating isodose distributions is presented. Both the treatment technique and the dose calculation method rely on the angle beta concept, which uniquely describes the dependence of the radial percentage depth doses in electron arc therapy on the nominal field width, isocenter depth, and virtual source-axis distance. The angle beta concept is discussed in detail and the electron pseudo-arc therapy technique used at McGill is described. Also presented is the method used to achieve dose homogeneity in target volumes treated with the pseudo-arc technique.

• OSTI ID: 5507563
• Journal Information: International Journal of Radiation Oncology, Biology and Physics; (United States), Journal Name: International Journal of Radiation Oncology, Biology and Physics; (United States) Vol. 20:6; ISSN IOBPD; ISSN 0360-3016
• Country of Publication: United States
• Language: English

Related Subjects

550603* -- Medicine-- External Radiation in Therapy-- (1980-)
62 RADIOLOGY AND NUCLEAR MEDICINE
ANIMALS
CALCULATION METHODS
DEPTH DOSE DISTRIBUTIONS
DISEASES
DOSES
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
ISODOSE CURVES
LEPTONS
MAMMALS
MAN
MEDICINE
NEOPLASMS
NUCLEAR MEDICINE
PRIMATES
RADIATION DOSE DISTRIBUTIONS
RADIATION DOSES
RADIOLOGY
RADIOTHERAPY
SPATIAL DOSE DISTRIBUTIONS
THERAPY
VERTEBRATES