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<title>PHOS Geometry in AliRoot</title>
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<h1 class="page-header">
Geometry & Materials
</h1>
x <i>fNumberOfPadsZ </i>gas cells, a Lead converter and a second layer
of gas detectors identical to the first layer. This second part is positionned
on top of the EMCA module.
+<P>
+The class <a href="html/AliPHOSv0.html"> AliPHOSv0 </a> ( <a href="html/AliPHOSv0_Tree.ps"> inheritance tree </a>) describes this geometry. We have defined also a class
+<a href="html/AliPHOSv1.html"> AliPHOSv1 </a> ( <a href="html/AliPHOSv1_Tree.ps"> inheritance tree </a>) which in addition contains the photodiode response and the light transport through the crystal.
+<P>
+The parameters of the geometry are given in class <a href="html/AliPHOSGeometry.html"> AliPHOSGeometry </a>( <a href="html/AliPHOSGeometry_Tree.ps"> inheritance tree </a>)
<br><br>
<center>
- <img SRC="PHOSGeantTree.gif" ALT="Geant Tree for PHOS" >
+ <img SRC=" html/images/EMCinAlice.gif" ALT="Geant Tree for PHOS" >
+ <br><br>
+ <b> Figure 1.a: </b> <i> GEANT Tree which describes the EMC-PHOS geometry </i>
+ </center>
+ <P>
+ <center>
+ <img SRC=" html/images/PPSDinAlice.gif" ALT="Geant Tree for PHOS" >
<br><br>
- <b> Figure 1.: </b> <i> GEANT Tree which describes the PHOS geometry </i>
+ <b> Figure 1.b: </b> <i> GEANT Tree which describes the PPSD-PHOS geometry </i>
</center>
<h4>
<i>GPS2</i>: will create EMCA plus PPSD
<br><br>
<center>
- <table>
- <tr>
- <td align=center valign=baseline>
- <img SRC="AlicebyGeant.gif" ALT="Geant display of PHOS" width="447" height="429" >
- </td>
- <td align=center valign=baseline>
- <img SRC="AlicebyRoot.gif" ALT="Root display of Alice" width="447" height="429" >
- </td>
- <tr>
- <td align=left valign=top>
- <b> Figure 3.: </b> <i> GEANT display of ALICE </i>
- </td>
- <td align=left valign=top>
- <b> Figure 4.: </b> <i> Root display of ALICE </i>
- </td>
- </tr>
- </table>
+ <img SRC="html/images/AliPHOSv0AllViews.gif" ALT="ROOT display of PHOS: All Views" >
+ <b> Figure 3a.: </b> <i> ROOT Display of ALICE: All Views </i>
+ <P>
+ <img SRC="html/images/AliPHOSv0FrontView.gif" ALT="ROOT display of PHOS: Front View" >
+ <b> Figure 3b.: </b> <i> ROOT Display of ALICE: Front Views </i>
+ <P>
+ <img SRC="html/images/AliPHOSv03DView1.gif" ALT="ROOT display of PHOS: 3D View" >
+ <b> Figure 3c.: </b> <i> ROOT Display of ALICE: All View3 </i>
+ <P>
+ <img SRC="html/images/AliPHOSv0PPSDFrontView.gif" ALT="Zoom on PPSD: Front View " >
+ <b> Figure 4.a: </b> <i> ROOT Display of ALICE: zoom on PPSD, Front Views </i>
+ <P>
+ <img SRC="html/images/AliPHOSv0PPSDPerspectiveView.gif" ALT="Zoom on PPSD: Perspective View " >
+ <b> Figure 4.b: </b> <i> ROOT Display of ALICE: zoom on PPSD, Perspective View </i>
</center> <br><br>
</li>
</address>
<!-- Created: Wed Nov 17 12:16:58 CET 1999 -->
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-Last modified: Tue Nov 23 09:49:02 CET 1999
+Last modified: Sun Mar 12 23:49:58 CET 2000
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