Warning, /epic/compact/tracking_region.xml is written in an unsupported language. File is not indexed.
0001 <!-- SPDX-License-Identifier: LGPL-3.0-or-later -->
0002 <!-- Copyright (C) 2022 - 2026 Whitney Armstrong, Sylvester Joosten, Wouter Deconinck, Zhenyu Ye, Dmitry Kalinkin -->
0003
0004 <lccdd>
0005
0006 <comment>
0007 These are used by ddsim, the region where we store all secondaries
0008 </comment>
0009
0010 <define>
0011
0012 <comment>
0013 These constants are used directly by the *Geant4TCUserParticleHandler* (default in ddsim)
0014 </comment>
0015 <constant name="tracker_region_rmax" value="EcalBarrel_rmin"/>
0016 <constant name="tracker_region_zmax" value="+EcalEndcapP_zmin"/>
0017 <constant name="tracker_region_zmin" value="-EcalEndcapN_zmin"/>
0018
0019 <comment>
0020 Additional constants for the purpose of defining the additional extrusion
0021 </comment>
0022 <constant name="tracker_region_forward_extrusion_zmax" value="36 * m"/>
0023 <constant name="tracker_region_forward_extrusion_rmax" value="15 * cm"/>
0024 <constant name="tracker_region_forward_extrusion_rot_y" value="ionCrossingAngle"/>
0025
0026 </define>
0027
0028 <comment>
0029 This volume is used by the *Geant4TVUserParticleHandler* (default in the latest npsim)
0030
0031 Set `connected="true"` to make it visible in a geometry display
0032 </comment>
0033 <parallelworld_volume name="tracking_volume" anchor="/world" material="Air" connected="false" vis="BlueVis">
0034 <comment>
0035 We first build a tube using the legacy parameters and add an ion beamline extrusion
0036 </comment>
0037 <shape type="BooleanShape" operation="Union">
0038 <shape type="Tube" rmin="0 * cm" rmax="tracker_region_rmax" dz="(tracker_region_zmax - tracker_region_zmin) / 2" />
0039 <shape type="Tube" rmin="0 * cm" rmax="tracker_region_forward_extrusion_rmax" dz="tracker_region_forward_extrusion_zmax / 2" />
0040 <rotation x="0" y="tracker_region_forward_extrusion_rot_y" z="0" />
0041 <position x="sin(tracker_region_forward_extrusion_rot_y) * tracker_region_forward_extrusion_zmax / 2"
0042 y="0"
0043 z="cos(tracker_region_forward_extrusion_rot_y) * tracker_region_forward_extrusion_zmax / 2 - (tracker_region_zmax + tracker_region_zmin) / 2" />
0044 </shape>
0045 <position x="0" y="0" z="(tracker_region_zmax + tracker_region_zmin) / 2" />
0046 <rotation x="0" y="0" z="0" />
0047 </parallelworld_volume>
0048
0049 </lccdd>
