[Gate-users] Annulus source

[Pieter Mollet]

Hi,

I'm modeling an annulus shaped source in Gate. This can be done using
the following commands :

/gate/source/annulus/gps/radius0 331 mm 
/gate/source/annulus/gps/radius 335 mm

This worked fine in Gate5. However, in Gate6.1 the output shows a full
cylinder of radius 335 mm. 

I could use the forbid/cold_area but then the cold_area overlaps with a
phantom I defined which surrounds the source.

Greets,

Pieter