<div dir="ltr">Hi Ashok,<div><br></div><div>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.</div><div><br></div><div>Best regards,</div><div><br></div><div>-Bryan<br><br><div class="gmail_quote"><div dir="ltr">On Wed, Aug 15, 2018 at 5:37 AM <<a href="mailto:gate-users-request@lists.opengatecollaboration.org">gate-users-request@lists.opengatecollaboration.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Send Gate-users mailing list submissions to<br>
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Today's Topics:<br>
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   1. monoenergetic electrons source for dosimetry? (Ashok Tiwari)<br>
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Message: 1<br>
Date: Tue, 14 Aug 2018 14:05:22 -0500<br>
From: Ashok Tiwari <<a href="mailto:tiwarias@yahoo.com" target="_blank">tiwarias@yahoo.com</a>><br>
To: <a href="mailto:gate-users@lists.opengatecollaboration.org" target="_blank">gate-users@lists.opengatecollaboration.org</a><br>
Subject: [Gate-users] monoenergetic electrons source for dosimetry?<br>
Message-ID: <<a href="mailto:16ECAFC5-2619-41A7-8469-63BBE82B71F8@yahoo.com" target="_blank">16ECAFC5-2619-41A7-8469-63BBE82B71F8@yahoo.com</a>><br>
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<br>
Hi, <br>
<br>
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:<br>
<br>
/gate/source/addSource monoenergetic_electron                   gps<br>
/gate/source/monoenergetic_electron/gps/particle                e-<br>
/gate/source/monoenergetic_electron/gps/energytype              Mono<br>
/gate/source/monoenergetic_electron/gps/monoenergy              0.015 eV<br>
/gate/source/monoenergetic_electron/gps/angtype                 iso<br>
/gate/source/monoenergetic_electron/gps/centre                  0. 0. 0. mm<br>
/gate/source/monoenergetic_electron/gps/type                    Point<br>
/gate/source/monoenergetic_electron/attachTo                    my_phantom<br>
/gate/source/monoenergetic_electron/visualize                   1000 yellow 10<br>
<br>
With this definition, I am getting all zeros in my dose matrix. Could anyone tell me, what information I am missing in above definition?<br>
<br>
Regards, <br>
Ashok<br>
<br>
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End of Gate-users Digest, Vol 147, Issue 6<br>
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</blockquote></div></div></div>