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Forum: Geometry
Re: Question particles emitted only in the direction outside from a cylindrical surface by gps (Sergio Lo Meo)
Date: Mar 07, 02:03
From: Gabriele Cosmo <Gabriele Cosmo>

Hi Sergio,

you may want to post this question in the "Event and Track Management" Forum.

Cheers, Gabriele

--------------------- On Thu, 07 Mar 2019 09:26:02 GMT, Sergio Lo Meo wrote:

> Dear Experts,
> 
> I know how to gun particles from a cylindrical surface by using gps:
> 
> /gps/pos/type Surface
> 
> /gps/pos/shape Cylinder
> 
> /gps/pos/centre 2. 2. 2. cm
> 
> /gps/pos/radius 2.5 cm
> 
> /gps/pos/halfz 5. cm
> 
> but I'd like the particles to be emitted only in the direction outside
> the cylinder and not inwards.
> 
> How can I do?
> 
> Thanks in advance
> 
> Best Regards,
> 
>   Sergio Lo Meo
> 

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