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Volume 17, Number 2, 2012

Monte Carlo simulation for Neptun 10 PC medical linear accelerator and calculations of output factor for electron beam

Mohammad Taghi Bahreyni Toossi, Mehdi Momennezhad, Seyed Mohammad Hashemi


Exact knowledge of dosimetric parameters is an essential pre-requisite of an effective treatment in radiotherapy. In order to fulfill this consideration, different techniques have been used, one of which is Monte Carlo simulation.

Materials and methods
This study used the MCNP-4Cb to simulate electron beams from Neptun 10 PC medical linear accelerator. Output factors for 6, 8 and 10 MeV electrons applied to eleven different conventional fields were both measured and calculated.

The measurements were carried out by a Wellhofler-Scanditronix dose scanning system. Our findings revealed that output factors acquired by MCNP-4C simulation and the corresponding values obtained by direct measurements are in a very good agreement.

In general, very good consistency of simulated and measured results is a good proof that the goal of this work has been accomplished.

Signature: Rep Pract Oncol Radiother, 2012; 17(2) : 115-118

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