Re: Medical linear accelerator

From: Alfredo Ferrari <alfredo.ferrari_at_cern.ch>
Date: Fri, 5 Apr 2013 10:13:31 +0200

Dear Maam

normally you should get quite good results for all observables as it
occurred in the past for similar porblems. In order to help you in finding
where the problem lies it would helpful to have more infos, not only the
input file. Very likely the culprit is not in the simulation parameters
but in the problem description (eg beam energy profile, particularly
the spread and its shape, geometry, materials etc)

                        Ciao
                       Alfredo

+----------------------------------------------------------------------+
| Alfredo Ferrari || Tel.: +41.22.76.76119 |
| CERN-EN/STI || Fax.: +41.22.76.69474 |
| 1211 Geneva 23 || e-mail: Alfredo.Ferrari_at_cern.ch |
| Switzerland || |
+----------------------------------------------------------------------+

On Thu, 4 Apr 2013, m.najem_at_surrey.ac.uk wrote:

> Dear FLUKA expert,
>
> I did a Monte Carlo simulation of the 6MV Varian medical linear accelerator
> using FLUKA on a 16core university computer. the run took about 6 days. The
> PDD curves was in very good agreement with measured ones at hospital and
> with the Monte Carlo results using BEAMnrc code. However, the beam profile
> at dmax or at any depth in the water phantom did not match with both the
> measured and the simulated ones with BEAMnrc.
>
> Could anyone check my input file (especially the transport and the basing
> cards) and tell me if I should change any parameter which can improve my
> results and reduce the simulation time.
>
> Note: I changed the dimensions and the materials composition of my geometry
> because of the confidentiality agreements with Varian manufacturer.
>
>
> Best Regards,
> ---
> Maan Najem
> ---
> Postgraduate Researcher
> Department of Physics
> Faculty of Engineering & Physical Sciences
> University of Surrey
> Guildford
> Surrey
> GU2 7XH
> UK
> Tel: +44(0)1483689423
> Email: m.najem_at_surrey.ac.uk
>
>
Received on Fri Apr 05 2013 - 15:24:50 CEST

This archive was generated by hypermail 2.3.0 : Fri Apr 05 2013 - 15:25:20 CEST