Dose distribution outside the target volume for 170-MeV proton beam

0435791 - ÚJF 2015 RIV GB eng J - Journal Article
Pachnerová Brabcová, Kateřina - Ambrožová, Iva - Kubančák, Ján - Puchalska, M. - Vondráček, V. - Molokanov, A. G. - Sihver, L. - Davídková, Marie
Dose distribution outside the target volume for 170-MeV proton beam.
Radiation Protection Dosimetry. Roč. 161, 1-4 (2014), s. 410-416. ISSN 0144-8420. E-ISSN 1742-3406
R&D Projects: GA MŠMT(CZ) LG13031; GA MŠMT LA08015; GA MŠMT LG14004
Institutional support: RVO:61389005
Keywords : linear energy transfer * proton beams * particles
Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders
Impact factor: 0.913, year: 2014

Dose delivered outside the proton field during radiotherapy can potentially lead to secondary cancer development. Measurements with a 170-MeV proton beam were performed with passive detectors (track etched detectors and thermoluminescence dose-meters) in three different depths along the Bragg curve. The measurement showed an uneven decrease of the dose outside of the beam field with local enhancements. The major contribution to the delivered dose is due to high-energy protons with linear energy transfer (LET) up to 10 keV mu m(-1). However, both measurement and preliminary Monte Carlo calculation also confirmed the presence of particles with higher LET.
Permanent Link: http://hdl.handle.net/11104/0239688