[Gate-users] How to Simulate rotating source ?

[Marc Chamberland]

Hi Xiaoyin!

The code you copied is for the old way of making a source move. This old way uses confinement and is extremely inefficient.

Instead, in Gate v6.1 you can simply attach any source to a moving volume and the source will move with the volume. Use the following command to attach a source to a volume:

/gate/source/[Source name]/attachTo   [Volume Name]

Now, if I remember correctly (I'd suggest you check this by yourself, just to make sure!), when you attach a source to a volume, its position becomes relative to the volume. So if you want the source in the centre of the volume, use:

/gate/source/[Source name]/gps/centre 0. 0. 0. cm 

To move the volume, refer to the chapter about "Defining a geometry" in the Gate Wiki: http://wiki.opengatecollaboration.org/index.php/Users_Guide_V6.1:Defining_a_geometry

I hope this helps!
Marc



__________________________


Marc Chamberland, MSc
PhD candidate
Department of Physics
Carleton University
Ottawa (ON)

Le 2012-04-05 à 10:25 AM, Xiaoyin a écrit :

> Dear Gaters,
> 
> I'm working with a Gate V6.1, (Geant 4.9.4.p02, and CLHEP 2.1.0.1) and trying to define a moving / rotating source.
> 
> I copied the code found in the user guide in wiki:
> 
> /gate/MovingSource/geometry/setRmax 5. cm
> /gate/MovingSource/geometry/setRmin 0. cm
> /gate/MovingSource/geometry/setHeight 20. cm
> /gate/MovingSource/moves/insert translation
> /gate/MovingSource/translation/setSpeed 0 0 0.04 cm/s
> 
> but my gate stops at the 1st line and says*/command not found/*.
> 
> Does anyone else has tried with the MovingSource? Or the moving source is no longer usable in GateV6.1?
> 
> Thank you very much for your kindly help in advance!
> 
> best regards,
> 
> Xiaoyin
> 
> 
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