Influence of beam parameters on percentage depth dose in electron arc therapy

Journal Article · Fri Jan 01 04:00:00 EST 1988 · Med. Phys.; (United States)

DOI:https://doi.org/10.1118/1.596150· OSTI ID:7190417

Pla, M; Pla, C; Podgorsak, E B

The dependence of rotational or arc electron beam percentage depth doses on the depth of isocenter di and nominal beam field width w is presented. A characteristic angle beta, which uniquely depends on w and di, is defined and the dependence of the radial percentage depth doses on angle beta discussed. It is shown that the characteristic angle beta concept can be used in clinical situations to predict the shape of the percentage depth dose curve when w and di are known, or, more importantly, it can be used to determine the appropriate w when di and the percentage depth dose characteristics are known.

• Research Organization: McGill Univ., Montreal, Quebec (Canada)
• OSTI ID: 7190417
• Journal Information: Med. Phys.; (United States), Journal Name: Med. Phys.; (United States) Vol. 15:1; ISSN MPHYA
• Country of Publication: United States
• Language: English

Related Subjects

550603* -- Medicine-- External Radiation in Therapy-- (1980-)
62 RADIOLOGY AND NUCLEAR MEDICINE
BEAMS
DEPTH DOSE DISTRIBUTIONS
DOSIMETRY
ELECTRON BEAMS
LEPTON BEAMS
MEDICINE
NUCLEAR MEDICINE
PARTICLE BEAMS
RADIATION DOSE DISTRIBUTIONS
RADIOLOGY
RADIOTHERAPY
SPATIAL DOSE DISTRIBUTIONS
THERAPY
THERMOLUMINESCENT DOSIMETRY