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Hi Wu Guocheng,
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<div>there have a number of eMails concerning this topic very recently.</div>
<div>You should check earlier eMails, too!</div>
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</div>
<div>Just briefly:</div>
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</div>
<div><br>
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<div>You may find a solution to your problem with the following instructions</div>
<div>to define the source:</div>
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<div style="font-family: 新細明體; font-size: 16px;"><span style="font-size: 12pt;"> #####################################</span></div>
<div style="font-family: 新細明體; font-size: 16px;"># Lu-176 source of LSO</div>
<div style="font-family: 新細明體; font-size: 16px;">#####################################</div>
<div style="font-family: 新細明體; font-size: 16px;">/gate/source/addSource SourceConfinement</div>
<div style="font-family: 新細明體; font-size: 16px;">/gate/source/SourceConfinement/gps/type Volume</div>
<div style="font-family: 新細明體; font-size: 16px;">/gate/source/SourceConfinement/gps/shape Cylinder</div>
<div style="font-family: 新細明體; font-size: 16px;">/gate/source/SourceConfinement/gps/radius 9.3 cm</div>
<div style="font-family: 新細明體; font-size: 16px;">/gate/source/SourceConfinement/gps/halfz 6.25 cm</div>
<div style="font-family: 新細明體; font-size: 16px;">/gate/source/SourceConfinement/gps/centre 0.0 0.0 0.0 cm</div>
<div style="font-family: 新細明體; font-size: 16px;">/gate/source/SourceConfinement/gps/particle ion</div>
<div style="font-family: 新細明體; font-size: 16px;">/gate/source/SourceConfinement/setActivity 159552. Bq</div>
<div style="font-family: 新細明體; font-size: 16px;">/gate/source/SourceConfinement/gps/ion 71 176 0 0</div>
<div style="font-family: 新細明體; font-size: 16px;">/gate/source/SourceConfinement/gps/energy 0. keV</div>
<div style="font-family: 新細明體; font-size: 16px;">/gate/source/SourceConfinement/setForcedUnstableFlag true</div>
<div style="font-family: 新細明體; font-size: 16px;">/gate/source/SourceConfinement/setForcedHalfLife 1192060800000000000 s</div>
<div style="font-family: 新細明體; font-size: 16px;">/gate/source/SourceConfinement/gps/number 1</div>
<div style="font-family: 新細明體; font-size: 16px;">/gate/source/SourceConfinement/gps/confine crystal</div>
<div style="font-family: 新細明體; font-size: 16px;"><br>
</div>
<div style="font-family: 新細明體; font-size: 16px;">/gate/source/SourceConfinement/gps/angtype iso</div>
<div style="font-family: 新細明體; font-size: 16px;">/gate/source/SourceConfinement/gps/mintheta 0. deg</div>
<div style="font-family: 新細明體; font-size: 16px;">/gate/source/SourceConfinement/gps/maxtheta 180. deg</div>
<div style="font-family: 新細明體; font-size: 16px;">/gate/source/SourceConfinement/gps/minphi 0. deg</div>
<div style="font-family: 新細明體; font-size: 16px;">/gate/source/SourceConfinement/gps/maxphi 360. deg</div>
<div style="font-family: 新細明體; font-size: 16px;"> </div>
<div style="font-family: 新細明體; font-size: 16px;">!!Note that it is important to to confine the source volume to the crystal!!</div>
<div style="font-family: 新細明體; font-size: 16px;"><br>
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<div style="font-family: 新細明體; font-size: 16px;">Kind regards,</div>
<div style="font-family: 新細明體; font-size: 16px;"><br>
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<div style="font-family: 新細明體; font-size: 16px;">Uwe Pietrzyk</div>
<div style="font-family: 新細明體; font-size: 16px;"><br>
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<div><span style="orphans: 2; widows: 2;">/----------------------------------------------------------------------</span></div>
<div style="orphans: 2; widows: 2;">Prof. Dr. Uwe Pietrzyk<br>
Diplom-Physiker<br>
Institut für Neurowissenschaften und Medizin / INM-4<br>
Forschungszentrum Jülich GmbH<br>
52425 Jülich<br>
Tel: +49-2461-61 4763<br>
Fax: +49-2461-61 2820<br>
Mobil: +49-162-103-4871<br>
eMail: <a href="mailto:U.Pietrzyk@fz-juelich.de">U.Pietrzyk@fz-juelich.de</a><br>
<a href="http://www.fz-juelich.de/inm/inm-4/DE/Home/home_node.html">http://www.fz-juelich.de/inm/inm-4/DE/Home/home_node.html</a><br>
&<br>
Bergische Universität Wuppertal<br>
Fachbereich C - Physik / D.08.01<br>
Gaußstr. 20<br>
42097 Wuppertal<br>
Tel: +49-(0)202-439-3523<br>
Fax: +49-(0)202-439-2811<br>
eMail: <a href="mailto:Uwe.Pietrzyk@physik.uni-wuppertal.de">Uwe.Pietrzyk@physik.uni-wuppertal.de</a><br>
<a href="http://www.medizinphysik.uni-wuppertal.de/">http://www.medizinphysik.uni-wuppertal.de</a><br>
----------------------------------------------------------------------/</div>
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<div>
<div>On 07 May 2015, at 04:15, wugc <<a href="mailto:wuguocheng@neusoft.com">wuguocheng@neusoft.com</a>> wrote:</div>
<br class="Apple-interchange-newline">
<blockquote type="cite">
<div style="line-height: 1.5; font-family: 宋体; font-size: 10.5pt; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; margin: 10px;">
<div style="font-family: 华文仿宋; font-size: 12pt;">
<div style="font-family: 华文仿宋; font-size: 12pt;">Dear Gaters,</div>
<div style="font-family: 华文仿宋; font-size: 12pt;"> </div>
<div style="font-family: 华文仿宋; font-size: 12pt;">LSO and LYSO have intrinsic radioactivity due to the<sup><span class="Apple-converted-space"> </span></sup>presence of<span class="Apple-converted-space"> </span><sup>176</sup>Lu. and I want to simulation of
the <sup></sup>intrinsic activity using GATE, but I don't know how to define The intrinsic background？</div>
<div style="font-family: 华文仿宋; font-size: 12pt;">Does anyone know how to define this?</div>
</div>
<div style="font-family: 华文仿宋; font-size: 12pt;"> </div>
<div style="font-family: 华文仿宋; font-size: 12pt;">With kind regards,</div>
<div>2015-05-07</div>
<div>
<hr align="left" size="1" style="width: 210px; height: 1px;">
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<div><span><span style="font-family: 宋体; font-size: 10.5pt;"><span style="font-family: 宋体; font-size: 10.5pt;">
<div style="color: rgb(192, 192, 192);">Wu Guocheng
<div style="color: rgb(192, 192, 192);">RNS Department
<div style="color: rgb(192, 192, 192);">
<div style="color: rgb(192, 192, 192);">Neusoft Medical System Co., Ltd.
<div style="color: rgb(192, 192, 192);">No. 16 Century Road. Hun Nan New District
<div style="color: rgb(192, 192, 192);">Shenyang 110179, PRC
<div style="color: rgb(192, 192, 192);">
<div style="color: rgb(192, 192, 192);">Tel: (86 24) 8366 2656</div>
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