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<p>Hi Josh,</p>
<p>I think your simulation is including the beta decay of Tc-99 to
Ru-99 (Ebeta_max=294 keV). Have a look at:<br>
<a href="http://www.lnhb.fr/nuclides/Tc-99_tables.pdf">http://www.lnhb.fr/nuclides/Tc-99_tables.pdf</a></p>
<p>Regards,<br>
Mercedes<br>
</p>
<div class="moz-cite-prefix">On 2020-05-26 10:08 a. m., Josh
Knowland wrote:<br>
</div>
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<div class="WordSection1">
<p class="MsoNormal">Hi Matthew, thank you very much for the
response. <o:p></o:p></p>
<p class="MsoNormal">I have simulated a test case using the code
you gave. Here is my source def:<o:p></o:p></p>
<p class="MsoNormal">
<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">/gate/source/addSource
src_PointSource<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">/gate/source/src_PointSource/gps/particle
ion<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">/gate/source/src_PointSource/gps/ion
43 99 0 142.6832<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">/gate/source/src_PointSource/gps/energytype
Mono<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">/gate/source/src_PointSource/gps/monoenergy
0 keV<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">/gate/source/src_PointSource/setForcedUnstableFlag
true<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">/gate/source/src_PointSource/setForcedHalfLife
21624.129 s<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">/gate/source/src_PointSource/setActivity
0.027027 mCi<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">/gate/source/src_PointSource/gps/type
Point<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">/gate/source/src_PointSource/gps/centre
0.000 0.000 0.000 mm<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">/gate/source/src_PointSource/gps/angtype
iso<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">That point source is surrounded by a cubic
meter of water that is assigned to be a sensitive detector:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-left:.5in">/gate/world/daughters/name
MeterCube<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">/gate/world/daughters/systemType
scanner<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">/gate/world/daughters/insert
tessellated<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">/gate/MeterCube/geometry/setPathToSTLFile
../STL_Files/MeterCube.stl<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">/gate/MeterCube/setMaterial
Water<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">/gate/MeterCube/attachCrystalSD<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Within the sensitive detector cube, I get
hits which visually look right. Here is a side view:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><img style="width:2.677in;height:2.6354in"
id="Picture_x0020_1"
src="cid:part2.E8B8F418.2879BC10@fisica.unam.mx" class=""
width="257" height="253"><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">But, the energy spectrum looks like this:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><img style="width:3.9375in;height:3.0104in"
id="Picture_x0020_3"
src="cid:part3.9996CCC3.32A2E7B3@fisica.unam.mx" class=""
width="378" height="289"><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The vertical step is at the excitation
energy of 143 keV.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Is that right? What is causing the odd
energy spectrum? <o:p>
</o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Below is the full listing of my code:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/geometry/setMaterialDatabase
../my_Materials.txt<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/world/geometry/setXLength
1000 mm<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/world/geometry/setYLength
1000 mm<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/world/geometry/setZLength
1000 mm<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/world/setMaterial
Water<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b><o:p> </o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/world/daughters/name
MeterCube<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/world/daughters/systemType
scanner<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/world/daughters/insert
tessellated<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/MeterCube/geometry/setPathToSTLFile
../STL_Files/MeterCube.stl<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/MeterCube/setMaterial
Water<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/MeterCube/attachCrystalSD<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b><o:p> </o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/physics/addPhysicsList
emstandard_opt4<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/physics/addProcess
RadioactiveDecay<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b><o:p> </o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/random/setEngineName
MersenneTwister<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/random/setEngineSeed
auto<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/run/initialize<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b><o:p> </o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/source/addSource
src_PointSource<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/source/src_PointSource/gps/particle
ion<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/source/src_PointSource/gps/ion
43 99 0 142.6832<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/source/src_PointSource/gps/energytype
Mono<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/source/src_PointSource/gps/monoenergy
0 keV<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/source/src_PointSource/setForcedUnstableFlag
true<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/source/src_PointSource/setForcedHalfLife
21624.119140625 s<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/source/src_PointSource/setActivity
0.027027 mCi<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/source/src_PointSource/gps/type
Point<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/source/src_PointSource/gps/centre
0.000 0.000 0.000 mm<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/source/src_PointSource/gps/angtype
iso<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b><o:p> </o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/digitizer/Singles/insert
adder<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b><o:p> </o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/output/ascii/enable<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/output/ascii/setFileName
Test_<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/output/ascii/setOutFileSinglesFlag
1<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/output/ascii/setOutFileHitsFlag
0<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b><o:p> </o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/output/allowNoOutput<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/application/setTimeSlice
1.0 s<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/application/setTimeStart
0.0 s<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/application/setTimeStop
1.0 s<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b><o:p> </o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/application/startDAQ<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From:</b> Matthew Strugari
<a class="moz-txt-link-rfc2396E" href="mailto:matthew.strugari@dal.ca"><matthew.strugari@dal.ca></a> <br>
<b>Sent:</b> Tuesday, May 26, 2020 9:58 AM<br>
<b>To:</b> Josh Knowland
<a class="moz-txt-link-rfc2396E" href="mailto:jknowland@lucernodynamics.com"><jknowland@lucernodynamics.com></a>; Christopher
Watanabe <a class="moz-txt-link-rfc2396E" href="mailto:ge69kec@mytum.de"><ge69kec@mytum.de></a>;
<a class="moz-txt-link-abbreviated" href="mailto:gate-users@lists.opengatecollaboration.org">gate-users@lists.opengatecollaboration.org</a><br>
<b>Subject:</b> Re: [Gate-users] GATE 7 metastable source
definition<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:black">Hi Josh,<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:black">There are a couple
options for simulating gamma emissions from Tc-99m. One of
which uses the ion source:<o:p></o:p></span></p>
</div>
<blockquote style="margin-left:30.0pt;margin-right:0in">
<div>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:black">/gate/source/ [
source name ] /gps/particle ion<o:p></o:p></span></p>
</div>
<div>
<div>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:black">/gate/source/<span
style="background:white"> [ source name ] </span>/gps/ion
43 99 0 142.6832<o:p></o:p></span></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:black">/gate/source/<span
style="background:white"> [ source name ] </span>/setForcedUnstableFlag
true<o:p></o:p></span></p>
</div>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:black">/gate/source/<span
style="background:white"> [ source name ] </span>/useDefaultHalfLife<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:black">/gate/source/ <span
style="background:white">[ source name ]</span> /setActivity
10 MBq<o:p></o:p></span></p>
</div>
</blockquote>
<div>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:black">An alternative and
speedier option, if you are not concerned about dosimetry
within your source volume, would be to use a gamma source
defined in the UserSpectrum:<o:p></o:p></span></p>
</div>
<blockquote style="margin-left:30.0pt;margin-right:0in">
<div>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:black">/gate/source/<span
style="background:white"> [ source name ] </span>/gps/particle
gamma<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:black">/gate/source/<span
style="background:white"> [ source name ] </span>/gps/energytype
UserSpectrum<o:p></o:p></span></p>
</div>
<div>
<div>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:black">/gate/source/<span
style="background:white"> [ source name ] </span>/gps/setSpectrumFile
data/energy_spectrum_Tc99m.txt<o:p></o:p></span></p>
</div>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:black">/gate/source/<span
style="background:white"> [ source name ] </span>/setForcedHalfLife
21625.848 s<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:black;background:white">/gate/source/ [
source name ] /setActivity 8.85244 MBq</span><span
style="font-size:12.0pt;color:black"><o:p></o:p></span></p>
</div>
</blockquote>
<div>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:black">Here, your energy
spectrum file would look like:<o:p></o:p></span></p>
</div>
<blockquote style="margin-left:30.0pt;margin-right:0in">
<div>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:black"># Gamma spectrum
for Technetium 99m from LNE-LNHB/CEA Table de
Radionucleides<o:p></o:p></span></p>
</div>
</blockquote>
<blockquote style="margin-left:30.0pt;margin-right:0in">
<div>
<div>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:black"># (first line is
1 0 to say it is a discrete spectrum)<o:p></o:p></span></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:black"># Three next
lines : 89.6 keV, 140.511 keV, and 142.675 KeV<o:p></o:p></span></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:black">1 0<o:p></o:p></span></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:black">0.0896
0.000014<o:p></o:p></span></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:black">0.140511
0.885<o:p></o:p></span></p>
</div>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:black">0.142675
0.00023<o:p></o:p></span></p>
</div>
</blockquote>
<div>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
</div>
<p class="MsoNormal"><span style="color:black;background:white">Both
configurations above would simulate a 10 MBq Tc-99m source. </span><span
style="color:black">In the former case, you would set your
activity as desired. In the latter case, you would scale
your activity by the sum of all branching ratios to account
only for the gamma portion of radioactivity.</span>
<o:p></o:p></p>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal"><span style="color:black">Cheers,</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span style="color:black">Matthew</span><o:p></o:p></p>
<div>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
</div>
<div>
<div>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
</div>
<div class="MsoNormal" style="text-align:center"
align="center">
<hr width="98%" size="2" align="center">
</div>
<div id="divRplyFwdMsg">
<p class="MsoNormal"><b><span style="color:black">From:</span></b><span
style="color:black"> Gate-users
<a class="moz-txt-link-rfc2396E" href="mailto:gate-users-bounces@lists.opengatecollaboration.org"><gate-users-bounces@lists.opengatecollaboration.org></a>
on behalf of Josh Knowland
<a class="moz-txt-link-rfc2396E" href="mailto:jknowland@lucernodynamics.com"><jknowland@lucernodynamics.com></a><br>
<b>Sent:</b> May 26, 2020 10:35 AM<br>
<b>To:</b> Christopher Watanabe
<a class="moz-txt-link-rfc2396E" href="mailto:ge69kec@mytum.de"><ge69kec@mytum.de></a>;
<a class="moz-txt-link-abbreviated" href="mailto:gate-users@lists.opengatecollaboration.org">gate-users@lists.opengatecollaboration.org</a>
<a class="moz-txt-link-rfc2396E" href="mailto:gate-users@lists.opengatecollaboration.org"><gate-users@lists.opengatecollaboration.org></a><br>
<b>Subject:</b> Re: [Gate-users] GATE 7 metastable
source definition</span> <o:p>
</o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="xmsonormal">Gate Users,<o:p></o:p></p>
<p class="xmsonormal">Is there any update on this?
Simulation of Tc99m without going through Mo-99
decay?<o:p></o:p></p>
<p class="xmsonormal">What is the best practice for
this situation?<o:p></o:p></p>
<p class="xmsonormal"> <o:p></o:p></p>
<p class="xmsonormal">-josh<o:p></o:p></p>
<p class="xmsonormal"> <o:p></o:p></p>
<p class="xmsonormal"> <o:p></o:p></p>
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<p class="xmsonormal"><b>From:</b> Gate-users
<a class="moz-txt-link-rfc2396E" href="mailto:gate-users-bounces@lists.opengatecollaboration.org"><gate-users-bounces@lists.opengatecollaboration.org></a>
<b>On Behalf Of </b>Christopher Watanabe<br>
<b>Sent:</b> Thursday, January 30, 2020 3:53 PM<br>
<b>To:</b>
<a class="moz-txt-link-abbreviated" href="mailto:gate-users@lists.opengatecollaboration.org">gate-users@lists.opengatecollaboration.org</a><br>
<b>Subject:</b> Re: [Gate-users] GATE 7
metastable source definition<o:p></o:p></p>
</div>
</div>
<p class="xmsonormal"> <o:p></o:p></p>
<p class="xmsonormal" style="margin-bottom:12.0pt">Hi
all, <br>
<br>
I was wondering, given that the original post here
was 5 years ago, whether methods now exist for
simulating the metastable Tc99m, without simulating
the Mo-99 decay scheme. This, for a Tc99m SPECT
imaging simulation.<br>
<br>
I realize in the GATE examples, this is simulated
using a pure gamma, but I’m interested in checking
the dose, minimal though it may be, of tissue as
well.
<br>
<br>
Thank you! <br>
<br>
Chris<br>
<br>
/----------------------------------------------------------------------------------------------------------<o:p></o:p></p>
<pre>Hi,<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre>you should take Mo-99, i.e. Z=42, A=99 instead, since Tc-99m<o:p></o:p></pre>
<pre>is part of the Mo-99 decay scheme. I have just tried it with<o:p></o:p></pre>
<pre>the Spectro-example of EduGATE and it gives a useful spectrum!<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre>Also, if you use the physicslist mechanism for the physical processes you need to add:<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre>/gate/physics/addPhysicsList emstandard<o:p></o:p></pre>
<pre>/gate/physics/addProcess RadioactiveDecay<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre>Hope this is helpful for you!<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre>Kind regards,<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre>Uwe Pietrzyk<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre>/----------------------------------------------------------------------<o:p></o:p></pre>
<pre>Prof. Dr. Uwe Pietrzyk<o:p></o:p></pre>
<pre>Diplom-Physiker<o:p></o:p></pre>
<pre>Institut für Neurowissenschaften und Medizin / INM-4<o:p></o:p></pre>
<pre>Forschungszentrum Jülich GmbH<o:p></o:p></pre>
<pre>52425 Jülich<o:p></o:p></pre>
<pre>Tel: +49-2461-61 4763<o:p></o:p></pre>
<pre>Fax: +49-2461-61 2820<o:p></o:p></pre>
<pre>Mobil: +49-162-103-4871<o:p></o:p></pre>
<pre>eMail: <a href="http://lists.opengatecollaboration.org/mailman/listinfo/gate-users" moz-do-not-send="true">U.Pietrzyk at fz-juelich.de</a><mailto:<a href="http://lists.opengatecollaboration.org/mailman/listinfo/gate-users" moz-do-not-send="true">U.Pietrzyk at fz-juelich.de</a>><o:p></o:p></pre>
<pre><a href="http://www.fz-juelich.de/inm/inm-4/DE/Home/home_node.html" moz-do-not-send="true">http://www.fz-juelich.de/inm/inm-4/DE/Home/home_node.html</a><o:p></o:p></pre>
<pre>&<o:p></o:p></pre>
<pre>Bergische Universität Wuppertal<o:p></o:p></pre>
<pre>Fachbereich C - Physik / D.08.01<o:p></o:p></pre>
<pre>Gaußstr. 20<o:p></o:p></pre>
<pre>42097 Wuppertal<o:p></o:p></pre>
<pre>Tel: +49-(0)202-439-3523<o:p></o:p></pre>
<pre>Fax: +49-(0)202-439-2811<o:p></o:p></pre>
<pre>eMail: <a href="http://lists.opengatecollaboration.org/mailman/listinfo/gate-users" moz-do-not-send="true">Uwe.Pietrzyk at physik.uni-wuppertal.de</a><mailto:<a href="http://lists.opengatecollaboration.org/mailman/listinfo/gate-users" moz-do-not-send="true">Uwe.Pietrzyk at physik.uni-wuppertal.de</a>><o:p></o:p></pre>
<pre><a href="http://www.medizinphysik.uni-wuppertal.de%3chttp:/www.medizinphysik.uni-wuppertal.de/" moz-do-not-send="true">http://www.medizinphysik.uni-wuppertal.de<http://www.medizinphysik.uni-wuppertal.de/</a>><o:p></o:p></pre>
<pre>----------------------------------------------------------------------/<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre>On 30 Jan 2015, at 21:17, Xinchi Hou <<a href="http://lists.opengatecollaboration.org/mailman/listinfo/gate-users" moz-do-not-send="true">monicaxinchi at gmail.com</a><mailto:<a href="http://lists.opengatecollaboration.org/mailman/listinfo/gate-users" moz-do-not-send="true">monicaxinchi at gmail.com</a>>> wrote:<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre>Dear Gate-users,<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre>I am using GATE 7 for SPECT simulations. For some reason, GATE 7 seems can not recognize metastable source by defining an ion source (shows below,Tc-99m as an example), which can be successfully run by GATE 6.1:<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre>/gate/source/SourceTC99m/gps/particle ion<o:p></o:p></pre>
<pre>/gate/source/SourceTC99m/gps/ion 43 99 0 142.6833<o:p></o:p></pre>
<pre>/gate/source/SourceTC99m/gps/monoenergy 0 keV<o:p></o:p></pre>
<pre>/gate/source/SourceTC99m/setForcedUnstableFlag true<o:p></o:p></pre>
<pre>/gate/source/SourceTC99m/setForcedHalfLife 21640 s<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre>I know we can define 140keV gamma as a source instead of using ion source. However, I need to use many of other metastable isotopes as sources which usually have multiple gamma energies for each of them.<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre>I really appreciate if somebody could share his/her experience on similar problems.<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre>My best regards,<o:p></o:p></pre>
<pre>Monica<o:p></o:p></pre>
<p class="xmsonormal"> <o:p></o:p></p>
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<pre class="moz-quote-pre" wrap="">_______________________________________________
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<a class="moz-txt-link-freetext" href="http://lists.opengatecollaboration.org/mailman/listinfo/gate-users">http://lists.opengatecollaboration.org/mailman/listinfo/gate-users</a></pre>
</blockquote>
<pre class="moz-signature" cols="72">--
Mercedes Rodriguez-Villafuerte, PhD
Instituto de Fisica, UNAM
AP 20-364, 01000 CDMX
Mexico</pre>
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