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<div class=Section1>
<p class=MsoPlainText><span lang=EN-US>Message: 2<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>Date: Fri, 3 Oct 2008 12:53:55 +0100<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>From: "Liliana Caldeira"
<llcaldeira@gmail.com><o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>Subject: [Gate-users] Visualize Source<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>To: "Users Gate"
<gate-users@lists.healthgrid.org><o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>Message-ID:<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US> <d5669d5a0810030453q12f59aa9hbf69f1aad44ad62e@mail.gmail.com><o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>Content-Type: text/plain;
charset=ISO-8859-1<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>Hello everyone!<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>How can I visualize a source? I can see
everything except the source.<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>I just want to be sure I locate it
right.<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>I am trying to simulate according to
NEMA-NU 2001. It is a cylinder with a line source inside (both 70 cm length ).<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoPlainText>Thank you,<o:p></o:p></p>
<p class=MsoPlainText>Liliana Caldeira<o:p></o:p></p>
<p class=MsoNormal><span lang=PL><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=PL>Hi Liliana.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=PL><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Depending on what you want to do:<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span
lang=EN-US><span style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span lang=EN-US>To visualize the VOLUME where
the source is located, there is no command for visualize the source, as far as
I know. Instead create a daughter object to the world which has the same shape and
location that your source (remember HalfZ trick for a source), visualize it
normally, but do not attach any sensitive detector to it.<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span
lang=EN-US><span style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span lang=EN-US>To see the ACTIVITY in the
source is a bit more tricky: <o:p></o:p></span></p>
<p class=MsoListParagraph style='margin-left:72.0pt;text-indent:-18.0pt;
mso-list:l0 level2 lfo1'><![if !supportLists]><span lang=EN-US><span
style='mso-list:Ignore'>a.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span lang=EN-US>Run your simulation for some
reasonable time, that you for example have a few thousands of decay events,
specifying a root output and what type of events of the source you want to see:<o:p></o:p></span></p>
<p class=MsoListParagraph style='margin-left:108.0pt;text-indent:-108.0pt;
mso-text-indent-alt:-9.0pt;mso-list:l0 level3 lfo1'><![if !supportLists]><span
lang=EN-US><span style='mso-list:Ignore'><span style='font:7.0pt "Times New Roman"'>
</span>i.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span lang=EN-US>Enable root output /gate/output/root/setFileName
myFile<o:p></o:p></span></p>
<p class=MsoListParagraph style='margin-left:108.0pt;text-indent:-108.0pt;
mso-text-indent-alt:-9.0pt;mso-list:l0 level3 lfo1'><![if !supportLists]><span
lang=EN-US><span style='mso-list:Ignore'><span style='font:7.0pt "Times New Roman"'>
</span>ii.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span lang=EN-US>/gate/output/root/setRootSinglesFlag
1 if you wish to see source events which lead to detected singles<o:p></o:p></span></p>
<p class=MsoListParagraph style='margin-left:108.0pt;text-indent:-108.0pt;
mso-text-indent-alt:-9.0pt;mso-list:l0 level3 lfo1'><![if !supportLists]><span
lang=EN-US><span style='mso-list:Ignore'><span style='font:7.0pt "Times New Roman"'>
</span>iii.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span lang=EN-US>/gate/output/root/setRootCoincidencesFlag
1 if you wish to see source events which lead to detected coincidences<o:p></o:p></span></p>
<p class=MsoListParagraph style='margin-left:108.0pt;text-indent:-108.0pt;
mso-text-indent-alt:-9.0pt;mso-list:l0 level3 lfo1'><![if !supportLists]><span
lang=EN-US><span style='mso-list:Ignore'><span style='font:7.0pt "Times New Roman"'>
</span>iv.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span lang=EN-US>I discourage you to view source
events from Hits tree, as the events would be doubled, and very large, but it
can be done.<o:p></o:p></span></p>
<p class=MsoListParagraph style='margin-left:72.0pt;text-indent:-18.0pt;
mso-list:l0 level2 lfo1'><![if !supportLists]><span lang=EN-US><span
style='mso-list:Ignore'>b.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span lang=EN-US>Start root, enter TBrowser t
command, and browse for your root file myFile.root, open it that you see in the
right pane trees (folders), for example Singles and Coincidences as minimum.<o:p></o:p></span></p>
<p class=MsoListParagraph style='margin-left:72.0pt;text-indent:-18.0pt;
mso-list:l0 level2 lfo1'><![if !supportLists]><span lang=EN-US><span
style='mso-list:Ignore'>c.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span lang=EN-US>RIGHT-click, the tree you want
to visualize, for example Singles. Choose StartViewer command, just before the
second horizontal line. This opens a TreeViewer.<o:p></o:p></span></p>
<p class=MsoListParagraph style='margin-left:72.0pt;text-indent:-18.0pt;
mso-list:l0 level2 lfo1'><![if !supportLists]><span lang=EN-US><span
style='mso-list:Ignore'>d.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span lang=EN-US>In right pane you will see
x:empty, y:empty, z:empty . Drag onto respective ones leaves: sourcePosX,
sourcePosY, sourcePosZ.<o:p></o:p></span></p>
<p class=MsoListParagraph style='margin-left:72.0pt;text-indent:-18.0pt;
mso-list:l0 level2 lfo1'><![if !supportLists]><span lang=EN-US><span
style='mso-list:Ignore'>e.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span lang=EN-US>In the left lower corner the
first button, next to STOP is Draw current selection. Press it. This
opens a 3D mouse rotable XYZ view of the events. <o:p></o:p></span></p>
<p class=MsoListParagraph style='margin-left:72.0pt;text-indent:-18.0pt;
mso-list:l0 level2 lfo1'><![if !supportLists]><span lang=EN-US><span
style='mso-list:Ignore'>f.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span lang=EN-US>If there is too many of them
(like Singles), try to draw Coincidences.<o:p></o:p></span></p>
<p class=MsoListParagraph style='margin-left:72.0pt;text-indent:-18.0pt;
mso-list:l0 level2 lfo1'><![if !supportLists]><span lang=EN-US><span
style='mso-list:Ignore'>g.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span lang=EN-US>With this method you can view
detected events, using globalPosX, Y, Z variables. You cannot view the
scanner geometry with this.<o:p></o:p></span></p>
<p class=MsoListParagraph style='margin-left:72.0pt;text-indent:-18.0pt;
mso-list:l0 level2 lfo1'><![if !supportLists]><span lang=EN-US><span
style='mso-list:Ignore'>h.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span lang=EN-US>What I wrote, applies to Gate
3.0.0 and related root 5.12. It looks, that Gate 4.0.0 does not provide the
ability to visualize the source either.<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>I hope that helps.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=PL>Marcin Balcerzyk<o:p></o:p></span></p>
<p class=MsoNormal>Universidad Compultense de Madrid<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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