Re: [fluka-discuss]: simulation medical linear accelerator

From: Luigi Salvatore Esposito <luigi.salvatore.esposito_at_cern.ch>
Date: Thu, 2 Mar 2017 10:10:33 +0000

Dear Andrea,
see my comments inline.
Cheers, luigi


On 2 Mar 2017, at 09:53, andrea.kozlowski_at_stud.htwk-leipzig.de<mailto:andrea.kozlowski_at_stud.htwk-leipzig.de> wrote:

Dear community,

right now I'm working on my thesis, using flair for FLUKA but beeing a
beginner. I have to do a simulation of the inhomogenous activation in a
medical linear accelerator.
I already implemented all needed components. But I still have some problems:

1) Electrons, getting accelerated to high energies, are deflected by 270
degrees. The deflection occurs by magnets. How can I implement the
deflection - in three parts à 90 degrees - in FLUKA (I'm thinking about
MGNFIELD or EMF but beeing not sure)?
A constant magnetic field can be implemented using the MGNFIELD card.
For dipoles bending in a single plane, this would be sufficient.
For additional info, please refer to the manual and to these slides<https://indico.cern.ch/event/489973/contributions/2000443/attachments/1270914/1883264/10_AdvancedMagneticField2016.pdf> from the FLUKA course.


2)After that, the electrons are directed at a target. Colliding, high
energy x-rays were produced. Is it possible to make this change from
electrons to x-rays in FLUKA? If so, how?
FLUKA takes care of x-rays production, provided that correct settings are issued.
EMFLUO is the card to activate. For some default, like PRECISIOn, x-rays are automatically activated.
As a final recommendation, please check/set the electron/photon thresholds using EMFCUT.


Thx for your help!

Greetings,
  Andrea



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Received on Thu Mar 02 2017 - 12:22:28 CET

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