Title :
Pencil beam scanning: a dynamical approach to proton therapy
Author :
Sepulchre, R. ; Gérard, M. ; Marchand, B. ; Prieels, D. ; Bauvi, B.
Author_Institution :
Liege Univ., Belgium
Abstract :
Pencil Beam Scanning is a dynamic beam delivery system developed at IBA s.a. for proton therapy. The radiation field necessary to reach in a fast and robust way a prescribed 3D dose distribution is obtained by accurately controlling both the extraction of the beam from a 235 MeV accelerator and the motion of the beam spot thanks to scanning magnets. Compared to existing beam delivery systems, the hardware of the PBS system is considerably simplified while offering the possibility of accurate delivery and short treatment time. The simplification in hardware is compensated for by advanced actuation, which is the topic of the present paper
Keywords :
dosimetry; proton effects; radiation therapy; 235 MeV; 235 MeV accelerator; accurate delivery; beam spot motion; hardware simplification; pencil beam scanning; prescribed 3D dose distribution; proton radiotherapy; proton therapy dynamical approach; radiation field; scanning magnets; short treatment time; Control systems; Hardware; Ion beam applications; Magnets; Medical treatment; Particle beams; Power supplies; Proton accelerators; Pulse width modulation inverters; Robust control;
Conference_Titel :
Bio-Informatics and Biomedical Engineering, 2000. Proceedings. IEEE International Symposium on
Conference_Location :
Arlington, VA
Print_ISBN :
0-7695-0862-6
DOI :
10.1109/BIBE.2000.889630
