<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style>
</head>
<body dir="ltr">
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
Greetings,</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
I do not know why the approach you used did not work. The only difference I have found between your code and the example shown in the wiki, is that you didn't add the "_phys" part on the object name when using the forbid command. Is there a reason for why you
didn't follow that part of the wiki example?</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
Also, from my understanding, you want an <span style="font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; font-size: 15px; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); display: inline !important;">
annulus</span> source. Why don't you directly define one as shown in the wiki? Is there a particularity in your case that make it invalid?</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
Have a nice day,</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
Maxime Toussaint</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
<br>
</div>
<div id="appendonsend"></div>
<hr style="display:inline-block;width:98%" tabindex="-1">
<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>De :</b> Gate-users <gate-users-bounces@lists.opengatecollaboration.org> de la part de Zhengzhi Liu <zliu36@stanford.edu><br>
<b>Envoyé :</b> 1 avril 2020 18:23<br>
<b>À :</b> gate-users <gate-users@lists.opengatecollaboration.org><br>
<b>Objet :</b> [Gate-users] Movement of source with cold_area</font>
<div> </div>
</div>
<div>
<div dir="ltr">Dear Gate users,<br>
<div><br>
</div>
<div>I am trying to move NEMA IQ phantom with the source along the axial direction back and forth to simulate a real experiment that we have done. I started with a much simpler case where there is only an annulus phantom with an annulus source in the simulated
PET system. Phantom as a volume is very easy to be translated. According to the user manual, to move a source, the source had better be attached to a volume. For common source without cold_area, it works very well. However, I found it did not work in the
case where the source is determined by a volume and a cold_area (which is also a volume), such as the annulus source. Could anyone teach me how to do so if it is possible?</div>
<div><br>
</div>
<div>Following is my code, I moved the phantom and cold_area simultaneously, whether or not I attached the source to phantom, after the translation, GATE did not return an annulus source rather a cylindrical source same as the phantom as shown in the attached
screenshot. <br>
</div>
<div><br>
</div>
<div>phantom.mac<br>
</div>
<div>#=====================================================<br>
# WATER PHANTOM<br>
#=====================================================<br>
/gate/world/daughters/name Normal_AP<br>
/gate/world/daughters/insert cylinder<br>
/gate/Normal_AP/geometry/setRmax 30.051 cm<br>
/gate/Normal_AP/geometry/setRmin 30.0 cm<br>
/gate/Normal_AP/geometry/setHeight 6 cm<br>
/gate/Normal_AP/placement/setTranslation 0.0 0.0 0.0 cm<br>
/gate/Normal_AP/moves/insert genericMove<br>
/gate/Normal_AP/genericMove/setPlacementsFilename ./macros/phantomMovement0.placements<br>
/gate/Normal_AP/setMaterial Water<br>
/gate/Normal_AP/vis/forceSolid<br>
/gate/Normal_AP/vis/setColor white<br>
/gate/Normal_AP/vis/setVisible 1<br>
<br>
/gate/world/daughters/name cold_area<br>
/gate/world/daughters/insert cylinder<br>
/gate/cold_area/geometry/setRmax 30.00 cm<br>
/gate/cold_area/geometry/setHeight 6 cm<br>
/gate/cold_area/placement/setTranslation 0.0 0.0 0.0 cm<br>
/gate/cold_area/moves/insert genericMove<br>
/gate/cold_area/genericMove/setPlacementsFilename ./macros/phantomMovement0.placements<br>
/gate/cold_area/setMaterial Air<br>
/gate/cold_area/vis/forceWireframe<br>
/gate/cold_area/vis/setColor white</div>
<div><br>
</div>
<div><br>
</div>
<div>source.mac<br>
</div>
<div>#=====================================================<br>
# FASTER PRODUCTION MODULE FOR GE-68 ISOTOPES<br>
#=====================================================<br>
/gate/source/addSource Ge68<br>
/gate/source/Ge68/setActivity 37000 Bq #1. uci<br>
/gate/source/Ge68/gps/particle gamma<br>
/gate/source/Ge68/setType backtoback<br>
/gate/source/Ge68/gps/type Volume<br>
/gate/source/Ge68/gps/shape Cylinder<br>
/gate/source/Ge68/gps/radius 30.051 cm<br>
/gate/source/Ge68/gps/halfz 3 cm<br>
/gate/source/Ge68/gps/centre 0. 0. 0. cm<br>
#/gate/source/Ge68/attachTo Normal_AP<br>
/gate/source/Ge68/gps/energytype Mono<br>
/gate/source/Ge68/gps/monoenergy 0.511 MeV<br>
/gate/source/Ge68/gps/angtype iso<br>
/gate/source/Ge68/setForcedUnstableFlag false<br>
#/gate/source/Ge68/setForcedHalfLife 6586 s<br>
/gate/source/Ge68/gps/Forbid cold_area<br>
/gate/source/Ge68/dump 1<br>
<br>
/gate/source/list</div>
<div><br>
</div>
<div><br>
</div>
<div>Thanks a lot for your reading and any help.</div>
<div>Sincerely,</div>
<div>Zhengzhi </div>
<div><br>
</div>
</div>
</div>
</body>
</html>