Incorporating dynamic motion in PENELOPE

Cindy Le Loirec (1) , Bénédicte Poumarède (1) , Eric Barat (2) , Thomas Dautremer (2) , Thierry Montagu (2) , L. Guérin (3) , A. Batalla (3) , Delphine Lazaro (1)

1 LM2S (CEA, LIST) - Laboratoire Modélisation et Simulation de Systèmes (CEA, LIST)
2 LCAE (CEA, LIST) - Laboratoire Capteurs et Architectures Electroniques (CEA, LIST)
3 UNICANCER/CRLC - Centre Régional de Lutte contre le Cancer François Baclesse [Caen]

Purpose/Objective: The traditional way to take time into account in Monte Carlo (MC) simulations is to simulate individual static component fields separately and integrate the results. This method can be very efficient but leads to a high demand of phase space file storage. To avoid this, the position probability sampling (PPS) method, in which the position of a geometrical object is treated as a random variable during the simulation, has been developed. We aim here to incorporate this method in Penelope in the case of a virtual wedge.

Mots clés: position of a geometrical object; simulation; motion; linac; dose distribution; dosimetry; ionizing radiation; moving jaw; radiotherapy; Penelope; Monte Carlo; particle transport

Domaines: Physique Médicale [physics.med-ph]; Méthodologie [stat.ME]; Modélisation et simulation; Physique mathématique [math-ph]

Cindy Le Loirec, Bénédicte Poumarède, Eric Barat, Thomas Dautremer, Thierry Montagu, et al.. Incorporating dynamic motion in PENELOPE. 2nd ESTRO Forum, Apr 2013, Geneve, Switzerland. Radiotherapy and Oncology, 106 (Supplement 2), pp.S218, 2013, 2nd ESTRO Forum 19-23 April 2013, Geneva, Switzerland. ⟨10.1016/S0167-8140(15)32875-9⟩. ⟨hal-02268273⟩