The M2 Model for Dose Simulation in Radiation Therapy. Issue 3 (15th April 2016)

• Record Type: Journal Article
• Authors: Pichard, T.; Alldredge, G. W.; Brull, S.; Dubroca, B.; Frank, M.
• Is Part Of: Journal of computational and theoretical transport. Volume 45:Issue 3(2016)
• Page Start: 174
• Page End: 183
• Publication Date: 2016-04-15
• Subjects: Photons and electrons transport -- moment models -- entropy-based closure; Transport theory -- Periodicals; Statistical physics -- Periodicals; Statistical physics; Transport theory; Periodicals; 530.138
• DOI: 10.1080/23324309.2016.1150855
• Languages: English
• ISSNs: 2332-4309

Abstract

ABSTRACT: The transport of photons and electrons is studied in the field of radiotherapy to compute the dose, that is, the quantity of energy transferred to the medium by a beam of particles at each position. A kinetic model is proposed, and to decrease the computation times, it is reduced through a moment extraction. Entropy-based angular moment models of order up to two ( M 1 and M 2 models) are shown to provide accurate results compared to a reference code with much lower computational costs.