Dose Distribution Outside the Target Volume for 170-Mev Proton Beam
Journal article, 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.
Author
Katerina Pachnerova Brabcová
Chalmers, Applied Physics, Nuclear Engineering
I. Ambrozova
Academy of Sciences of the Czech Republic
J. Kubancak
Ceske vysoke uceni technicke v Praze
Academy of Sciences of the Czech Republic
Monika Puchalska
Chalmers, Applied Physics, Nuclear Engineering
V. Vondracek
Proton Therapy Center Czech
A. G. Molokanov
Joint Institute for Nuclear Research, Dubna
Lembit Sihver
Chalmers, Applied Physics, Nuclear Engineering
M. Davidkova
Academy of Sciences of the Czech Republic
Radiation Protection Dosimetry
0144-8420 (ISSN)
Vol. 161 1-4 410-416Subject Categories (SSIF 2011)
Other Engineering and Technologies
DOI
10.1093/rpd/ncu139