IMRT field profiling by high-quality polycrystalline CVD diamond

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Published 1 August 2012 Published under licence by IOP Publishing Ltd
, , Citation M Bruzzi et al 2012 JINST 7 P08003 DOI 10.1088/1748-0221/7/08/P08003

1748-0221/7/08/P08003

Abstract

A dosimeter made with state of art polycrystalline Chemical Vapour Deposited (pCVD) diamond for applications in clinical radiotherapy has been manufactured, based on a large area (2.5 × 2.5 cm2) film equipped with a matrix of contacts. A dose profile under an Intensity Modulated Radiotherapy (IMRT) beam for prostate cancer has been monitored using a set of in-line pads along a section of the field map. Results compare well with data obtained with a commercial bidimensional silicon dosimeter, confirming that our pCVD diamond device is suitable for mapping the conformed dose in IMRT treatments.

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10.1088/1748-0221/7/08/P08003