Beam scanning system for a clinical pi-meson beam

Journal Article · Sat Mar 01 04:00:00 EST 1986 · Rev. Sci. Instrum.; (United States)

DOI:https://doi.org/10.1063/1.1138940· OSTI ID:6288871

Lam, G K.Y.; Harrison, R W; Kornelsen, R O; Skarsgard, L D

A beam delivery system for large uniform dose fields suitable for cancer radiotherapy has been constructed for the TRIUMF pion treatment facility using discrete step beam scanning in three dimensions. The patient on a couch is scanned laterally relative to a pencil beam in a raster fashion. At each spot, the depth dose profile is delivered by range modulations using a range shifter. The operations of the scanning couch and range shifter are synchronized by the use of beam monitor pulses from a beam intensity integrating system. The system is hence versatile enough to handle treatment volume of highly irregular shape and yet is immune to fluctuations in accelerator output.

• Research Organization: Batho Biomedical Facility, TRIUMF, University of British Columbia, 4004 Wesbrook Mall, Vancouver, British Columbia, Canada V6T 2A3, Division of Radiation Physics, Cancer Control Agency of British Columbia, 600 West 10th Avenue, Vancouver, British Columbia, Canada V5Z 4E6, and Medical Biophysics
• OSTI ID: 6288871
• Journal Information: Rev. Sci. Instrum.; (United States), Journal Name: Rev. Sci. Instrum.; (United States) Vol. 57:3; ISSN RSINA
• Country of Publication: United States
• Language: English

Related Subjects

550602* -- Medicine-- External Radiation in Diagnostics-- (1980-)
62 RADIOLOGY AND NUCLEAR MEDICINE
BEAM MONITORS
BEAM OPTICS
BEAMS
DEPTH DOSE DISTRIBUTIONS
MEASURING INSTRUMENTS
MEDICINE
MESON BEAMS
MONITORS
NUCLEAR MEDICINE
OPERATION
PARTICLE BEAMS
PION BEAMS
RADIATION DOSE DISTRIBUTIONS
RADIOLOGY
RADIOTHERAPY
SPATIAL DOSE DISTRIBUTIONS
THERAPY