Determination of energy spectra of proton therapy beams

A technique has been developed for measuring the energy spectra of high-energy proton therapy beams in situ under conditions similar to those used for radiotherapy at the South African National Accelerator Centre. The method is based on proton elastic scattering, H(p,p)H, in a thin polyethylene radiator and uses two ΔE-E detector telescopes to detect coincident proton pairs. Measurements have been made to investigate the effect of standard beam modification elements on the energy spectra of proton therapy beams produced by a passive scattering system. Monte Carlo simulations of the spectra were computed with the MCNPX 2.1.5 Monte Carlo code to compare with experimental measurements.

Grantor dc:publisher.institution

Department of Physics

Year dc:date.issued

2002

Author dc:creator

• Nchodu, M R

Advisors dc:contributor.advisor

• Brooks, F D
• Buffler, Andy
• Jones, Dan T L

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/11427/7415

OAI identifier oai:identifier

oai:open.uct.ac.za:11427/7415