[Gate-users] Attach DoseActor to Cylinder

[Cassandra Miller]

Hi Daniela,

I'm not 100% sure if this is your problem, but I noticed you didn't 
attach a sensitive detector to your phantom - I think that may be 
necessary. It should just be this line:

/gate/PMMA/attachPhantomSD

More info here:

https://opengate.readthedocs.io/en/latest/sensitive_detector_concept.html#the-phantomsd

Let me know if this works!

Best,
Cassandra

-- 

Cassandra Miller
PhD Student, Physics
Quantitative Radiomolecular Imaging and Therapy Lab
Department of Physics and Astronomy, University of British Columbia

On 2020-12-09 1:07 p.m., Botnariuc, Daniela wrote:
>
> Dear Gate users,
>
> I am simulating a proton pencil beam and I am trying to score the 
> depth-dose curve in a cylindrical geometry. When I attach the dose 
> actor to the cylindrical geometry, it appears that the dose is being 
> calculated in a box as opposed to a cylinder. I ran the same 
> simulation but scoring dose in a cuboid geometry whose X and Y lengths 
> were the same as the diameter (for the same depth resolution) of the 
> cylindrical volume and I get the exact same curve. How would I define 
> the dose actor in order to score dose in the cylinder?
>
> #GEOMETRY
>
> /gate/world/daughters/name   PMMA
>
> /gate/world/daughters/insert cylinder
>
> /gate/PMMA/geometry/setRmax 4.08 cm
>
> /gate/PMMA/geometry/setRmin 0. mm
>
> /gate/PMMA/geometry/setHeight 20 cm
>
> /gate/PMMA/placement/setTranslation 0 0 0.10 m
>
> /gate/PMMA/setMaterial Water
>
> /gate/PMMA/vis/setColor cyan
>
> /gate/PMMA/describe
>
> #DOSE ACTOR
>
> /gate/actor/addActor   DoseActor depthdose
>
> /gate/actor/depthdose/attachTo   PMMA
>
> /gate/actor/depthdose/stepHitType   random
>
> /gate/actor/depthdose/setPosition   0 0 0 mm
>
> /gate/actor/depthdose/setResolution   1  1 1000 mm
>
> /gate/actor/depthdose/saveEveryNSeconds 60
>
> /gate/actor/depthdose/enableDose   true
>
> /gate/actor/depthdose/enableUncertaintyDose true
>
> Thank you in advance for your time.
>
> Best wishes,
>
> Daniela
>
>
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