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<p>Hi Josh,</p>
<p>No I didn't! Although I don't know if that means it isn't
possible, I didn't spend too much time looking into it because I
found an alternate way for me to do what I needed to do. I feel
like it should exist, although I also don't think alphas are
studied too commonly using Gate.<br>
</p>
<p>Best,<br>
Cassandra</p>
<p>--<br>
</p>
<pre class="moz-signature" cols="72">Cassandra Miller
PhD Candidate, Physics
Quantitative Radiomolecular Imaging and Therapy Lab
Department of Physics and Astronomy, University of British Columbia</pre>
<div class="moz-cite-prefix">On 2021-10-12 7:02 a.m., Josh Knowland
wrote:<br>
</div>
<blockquote type="cite"
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<div class="WordSection1">
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black">Hi Cassandra, did you ever figure out
a way to define a pure alpha source? I’d like to know how to
do it too.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black">Josh<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black">----------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black">Hi everyone,<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black">I know it is possible to define a
beta/gamma source with Gate, using
<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black">UserSpectrum and the
"/gate/source/spectrumname/gps/particle beta"
<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black">command, for example. Is it possible
to do this with alpha particles as
<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black">well? There is nothing in the
documentation about it, but I think Geant4
<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black">is capable of doing things like that,
so I was wondering if there was a
<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black">way..<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black">Similarly, it is possible to use the
"ion source" for an alpha emitting
<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black">isotope, but tell Gate to not
simulate gammas/betas/anything besides
<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black">alphas?<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black">Thank you!<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black">Best,<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black">Cassandra<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black">--
<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black">Cassandra Miller<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black">PhD Student, Physics<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black">Quantitative Radiomolecular Imaging
and Therapy Lab<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black">Department of Physics and Astronomy,
University of British Columbia<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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