[Gate-users] defining an H- source

[David Watts]

Hi Loic,



Thanks very much for your response.



I just want to clarify that it's not anti-protons I want to simulate, but rather negative Hydrogen ions (ie: Hydrogen with an extra electron).



In case someone else has another suggestion... H- is quite common as species in injectors.



Cheers and thanks,
Dave.









Message: 4

Date: Fri, 13 Mar 2015 07:00:43 +0000

From: Grevillot Loic <loic.grevillot at medaustron.at<mailto:loic.grevillot at medaustron.at>>

To: David Watts <David.Watts at cern.ch<mailto:David.Watts at cern.ch>>,

                "gate-users at lists.opengatecollaboration.org<mailto:gate-users at lists.opengatecollaboration.org>"

                <gate-users at lists.opengatecollaboration.org<mailto:gate-users at lists.opengatecollaboration.org>>

Subject: Re: [Gate-users] defining an H- source

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Hi David,



I never tried to simulate anti-protons ... I would advise to focus on Geant4 GPS documentation to find out a solution and otherwise contact directly Geant4 people.

If it does not work with GPS, I do not think it will work with PencilBeam source.

Please keep us informed about the solutions.



Sincerely,



Lo?c









From: gate-users-bounces at lists.opengatecollaboration.org<mailto:gate-users-bounces at lists.opengatecollaboration.org> [mailto:gate-users-bounces at lists.opengatecollaboration.org] On Behalf Of David Watts

Sent: Donnerstag, 12. M?rz 2015 10:46

To: gate-users at lists.opengatecollaboration.org<mailto:gate-users at lists.opengatecollaboration.org>

Subject: [Gate-users] defining an H- source



Hi Gate users,



Can someone  tell me which is the best way to generate a source of H-, 100 MeV.



I am trying:

                /gate/source/addSource PBS-source gps

                /gate/source/PBS-source/gps/particle ion

                /gate/source/PBS-source/gps/ion 1 1 -1 0



But I see that the particle is blue (positive)... and I ran now another sim with

                /gate/source/addSource PBS-source gps

                /gate/source/PBS-source/gps/particle ion

                /gate/source/PBS-source/gps/ion 1 1 1 0



And I get exactly the same output. Reading further, perhaps this is when you have a stationary source? Like Oxygen-15?



Now I have tried :

                /gate/source/addSource PBS PencilBeam

                /gate/source/PBS/setParticleType GenericIon

                /gate/source/PBS/setIonProperties 1 1 -1 0



And I get an error:

*** COMMAND NOT FOUND </gate/source/PBS/setIonProperties 1 1 -1 0> *** [Gate] Sorry, error in a macro command : abort.



Can  someone help ?



Cheers and thanks,



Dr. David A. Watts

Experimental Physicist

A.D.A.M. SA

Geneva, Switzerland


Dr. David A. Watts
Experimental Physicist
A.D.A.M. SA
Geneva, Switzerland

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