Fig. 3
From: Recent advances in film dosimetry for quality assurance in microbeam radiation therapy
Continuous depth dose measurement in a \(2 \times 2 \hbox { cm}^{2}\) MRT square field. (a) EBT-XD films were placed parallel to the beam axis between the RW3 slabs. (b) Depth doses were measured over a range of 3.4 cm. (c) and (d) The central peak doses, both measured and calculated using penMRT, were averaged over 10 \(\upmu\)m, normalized to the dose at a depth of 2 cm, and the relative differences were calculated. (e) and (f) The central valley doses, both measured and calculated using penMRT, were averaged over 100 \(\upmu\)m, normalized to the dose at a depth of 2 cm. The normalization depth is indicated by the cyan arrow. The relative differences were calculated with a step of 1 mm. The standard deviation in penMRT calculated values is shown as 1 sigma, while it is not shown for the film case due to high statistical uncertainties that would obscure the figure.
