[Gate-users] Flat divergent field

[David Boersma]

Hi Jan Weidner from PTW,

GATE does not yet have a source that does exactly that. But I think that the easiest way to achieve the same effect is to write a small ROOT script that generates a phase space file with a large number of particles that are distributed in this way. Then you can read your phase space ROOT file(s) with the phase space source actor.

HTH,
David Boersma
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Von: Gate-users <gate-users-bounces at lists.opengatecollaboration.org> im Auftrag von Weidner Jan <Jan.Weidner at ptw.de>
Gesendet: Montag, 15. April 2019 14:25:54
An: gate-users at lists.opengatecollaboration.org
Betreff: [Gate-users] Flat divergent field

Hello,

I would like to create an idealized divergent radiation therapy field 10x10cm and ssd=1m. More precisely I would like a source such that:


·         All particles start at the point [0 0 1] m

·         Their direction sampling is equivalent to the following procedure:

Pick a point uniformly from all points in the xy plane with coordinates -5cm < x,y < 5cm.

Aim the particle gun at that point and shoot.

Is this possible in Gate? If so how?

Best
Jan






Dr. Jan Weidner
Software Development

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