[Gate-users] Quadrupoles and dipoles in GATE

[David Sarrut]

Hello Erik,

I never used magnetic field in Gate, but it seems that some macros exist to
define a global field (/gate/geometry/setMagField).

If it does not fit your need, you will need to create specific classes in
Gate that Geant4 concepts (
http://geant4.web.cern.ch/geant4/G4UsersDocuments/UsersGuides/ForApplicationDeveloper/html/Detector/electroMagneticField.html).
It should not be too difficult. Just think to start from the last version
of the Gate source code in the git repository, and start by creating a new
branch.

(To my knowledge, no current plan to implement magnetic field attached to a
specific volume in Gate)

Sincerely,
David

On Fri, Mar 6, 2015 at 1:56 PM, Erik Almhagen <ealmhagen at gmail.com> wrote:

> Hello
>
> I am a new GATE user, predominantly interested in its radiotherapy
> applications. My longer term goals are to simulate dose distributions using
> CT-images, especially with an eye to paediatric patients. Before all that I
> want to implement a beamline/nozzle. In the 7.0 User's guide, it says:
>
> "A magnetic field can be defined. It will be attached and thus active in
> the whole world volume. It is currently not possible to confine the field
> to another volume."
>
> Since I want to model quadrupoles and dipoles, I do not want to have a
> homogeneous, world-wide magnetic field, but rather a number of fields
> confined to certain volumes.  Am I perhaps looking in the wrong place, or
> is that not possible to model at the moment in GATE?
>
> If it is not possible at the moment, is there anyone with plans to
> implement it?
>
> With regards
> /Erik Almhagen
>
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-- 
David Sarrut, Phd
Directeur de recherche CNRS
CREATIS, UMR CNRS 5220, Inserm U 1044
Centre de lutte contre le cancer Léon Bérard
28 rue Laënnec, 69373 Lyon cedex 08
Tel : 04 78 78 51 51 / 06 74 72 05 42
http://www.creatis.insa-lyon.fr/~dsarrut
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