The dosimetric properties of an intraoperative radiation therapy applicator system for a Mevatron-80

Journal Article · Fri Sep 01 04:00:00 EDT 1989 · Medical Physics; (USA)

DOI:https://doi.org/10.1118/1.596338· OSTI ID:5130132

Nelson, C E; Cook, R; Rakfal, S ^[1]

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1. East Carolina Univ. School of Medicine, Greenville, NC (USA)

An applicator system for intraoperative radiation therapy has been fabricated which does not require physical docking with the accelerator. A dosimetric study has been completed which documents the properties of this system for a variety of electron beam energies, applicator sizes, collimator settings, both primary and secondary, and source-surface distance (SSD) settings. Sensitivity of the system to common misalignment errors was also determined. Results indicate (a) applicator leakage of less than 5%, (b) beam flatness to within plus or minus 5% at the dMAX with a single primary collimator setting, (c) smooth changes in output with cone size, beam energy and SSD, and (d) negligible changes in dose distributions within alignment errors permitted by the system.

• OSTI ID: 5130132
• Journal Information: Medical Physics; (USA), Journal Name: Medical Physics; (USA) Vol. 16:5; ISSN 0094-2405; ISSN MPHYA
• Country of Publication: United States
• Language: English

Related Subjects

550603* -- Medicine-- External Radiation in Therapy-- (1980-)
62 RADIOLOGY AND NUCLEAR MEDICINE
ACCELERATORS
BEAMS
ELECTRON BEAM ION SOURCES
ELECTRON BEAMS
ION SOURCES
LEPTON BEAMS
LINEAR ACCELERATORS
MEDICINE
NUCLEAR MEDICINE
PARTICLE BEAMS
RADIATION DOSE DISTRIBUTIONS
RADIOLOGY
RADIOTHERAPY
THERAPEUTIC USES
THERAPY
USES