Journal
RADIOTHERAPY AND ONCOLOGY
Volume 96, Issue 2, Pages 250-253Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.radonc.2010.03.016
Keywords
Small photon beams; Monte Carlo; Film dosimetry; Stereotactic radiosurgery
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This work reports the use of both GafChromic EBT film immersed in a water phantom and Monte Carlo (MC) simulations for small photon beam stereotactic radiosurgery dosimetry Circularly collimated photon beams with diameters in the 4-20 mm range of a dedicated 6 MV linear accelerator (Novalis (R), Brain-LAB, Germany) were used to perform off-axis ratios, tissue maximum ratios and total scatter factors measurements, and MC simulations GafChromic EBT film data show an excellent agreement with MC results (<2 7%) for all measured quantities (C) 2010 Elsevier Ireland Ltd All rights reserved Radiotherapy and Oncology 96 (2010) 250-253
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