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

fYear

2000

fDate

2000

Firstpage

370

Lastpage

375

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Bio-Informatics and Biomedical Engineering, 2000. Proceedings. IEEE International Symposium on

Conference_Location

Arlington, VA

Print_ISBN

0-7695-0862-6

Type

conf

DOI

10.1109/BIBE.2000.889630

Filename

889630