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<p class="MsoNormal"><span lang="EN-US">Hi Sadek,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Here is a <a href="https://www.mathworks.com/matlabcentral/fileexchange/72931-derenzo-phantom-vertex-position-calculator">
link</a> to a matlab program that I wrote for calculating the vertex positions of a Derenzo phantom.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">From there, you can define your phantom mac file along the following lines from the quadrant definition:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">/gate/Derenzo/daughters/name hole1<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">/gate/Derenzo/daughters/insert cylinder<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">/gate/hole1/setMaterial material<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">/gate/hole1/geometry/setRmin 0. mm<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">/gate/hole1/geometry/setRmax Radius mm # radius defined in matlab program<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">/gate/hole1/geometry/setHeight Height mm # user-defined height<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">/gate/hole1/placement/setTranslation x y z mm # x and y printed from matlab program, user-defined z<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">/gate/hole1/repeaters/insert quadrant<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">/gate/hole1/quadrant/setLineNumber N # number of rows in triangular pattern specified in matlab program<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">/gate/hole1/quadrant/setOrientation theta deg # angular orientation defined by direction of line repetition<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">/gate/hole1/setCopySpacing 4xRadius mm # matlab program assumes space between holes and diameter of holes are equal<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">/gate/hole1/quadrant/setMaxRange xx mm # define max range to remove corner-copies of holes falling outside of your Derenzo volume<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">You can then repeat this for each triangular region in your phantom macro file. I don’t not have a specific configuration for the source macro, but you should be able to extract/extend what you need from this approach.
Let me know if you have any questions.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">HTH,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Matthew<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black">Gate-users <gate-users-bounces@lists.opengatecollaboration.org> on behalf of Sadek Nehmeh <san2028@med.cornell.edu><br>
<b>Date: </b>Wednesday, March 3, 2021 at 15:28<br>
<b>To: </b>Gate-users <gate-users@lists.opengatecollaboration.org><br>
<b>Subject: </b>[Gate-users] Derenzo Phantom<o:p></o:p></span></p>
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<p class="MsoNormal" style="line-height:12.0pt;mso-line-height-rule:exactly"><b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:white">CAUTION:</span></b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:white"> The Sender
of this email is not from within Dalhousie.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:white">Hi Gate Users</span>,<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Does anyone have the phantom and source mac files for the Derenzo phantom?<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal">Sadek Nehmeh <o:p></o:p></p>
<p class="MsoNormal">Weill Cornell Medicine, NY<o:p></o:p></p>
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