[Gate-users] monoenergetic electrons source for dosimetry?

Bryan McIntosh mcintoshster at gmail.com
Wed Aug 15 13:23:57 CEST 2018


Hi Ashok,

Check the units of your electron source's energy; 0.015 eV is EXTREMELY
low, so there's no dose deposited since there's no ionization occurring!
Double-check the energy of the beam you wish to simulate and enter that
value instead of this very small one.

Best regards,

-Bryan

On Wed, Aug 15, 2018 at 5:37 AM <
gate-users-request at lists.opengatecollaboration.org> wrote:

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>    1. monoenergetic electrons source for dosimetry? (Ashok Tiwari)
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> ----------------------------------------------------------------------
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> Message: 1
> Date: Tue, 14 Aug 2018 14:05:22 -0500
> From: Ashok Tiwari <tiwarias at yahoo.com>
> To: gate-users at lists.opengatecollaboration.org
> Subject: [Gate-users] monoenergetic electrons source for dosimetry?
> Message-ID: <16ECAFC5-2619-41A7-8469-63BBE82B71F8 at yahoo.com>
> Content-Type: text/plain; charset="utf-8"
>
> Hi,
>
> I am trying to simulate the monoenergetic electrons in the water phantom.
> Following macro is what I am using as a definition of monoenergetic
> electrons source:
>
> /gate/source/addSource monoenergetic_electron                   gps
> /gate/source/monoenergetic_electron/gps/particle                e-
> /gate/source/monoenergetic_electron/gps/energytype              Mono
> /gate/source/monoenergetic_electron/gps/monoenergy              0.015 eV
> /gate/source/monoenergetic_electron/gps/angtype                 iso
> /gate/source/monoenergetic_electron/gps/centre                  0. 0. 0. mm
> /gate/source/monoenergetic_electron/gps/type                    Point
> /gate/source/monoenergetic_electron/attachTo                    my_phantom
> /gate/source/monoenergetic_electron/visualize                   1000
> yellow 10
>
> With this definition, I am getting all zeros in my dose matrix. Could
> anyone tell me, what information I am missing in above definition?
>
> Regards,
> Ashok
>
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