Proton beam steering control system for high precision radiotherapy at iThemba LABS : an investigation on actuator saturation constraints

This thesis aims at studying some of the techniques used to deal with constraints with special application to the Proton beam steering control at iThemba LABS. The steering of charged particles occurring in research plants is one of the interests of control systems. In this work an investigation of the algorithm for the control of the proton beam steering system in the radiotherapy treatment facility at iThemba LABS is conducted. This algorithm is intended to autonomously maintain the beam centered with reference to the axis of the beamline, and keep the beam front parallel to the central axis of the beamline as stated by van Tubbergh and De Kock, 2006. Furthermore, the algorithm is responsible for monitoring the distribution of the proton beam, in a plane normal to the beam travel direction.

Grantor dc:publisher.institution

Department of Electrical Engineering

Year dc:date.issued

2008

Author dc:creator

• Ts`oeu, M S

Advisor dc:contributor.advisor

• Tapson, Jonathan

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/11427/5095

OAI identifier oai:identifier

oai:open.uct.ac.za:11427/5095