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[IDEA] Add a solenoid and magnetic fields
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@BrieucF
BrieucF committed Mar 1, 2024
1 parent 1f099ab commit 3a3641c
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12 changes: 6 additions & 6 deletions FCCee/IDEA/compact/IDEA_o1_v02/DectDimensions_IDEA_o1_v01.xml
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<constant name="DCH_outer_radius" value="2000*mm"/> <!-- Contact the drift chamber experts if you need to change the DC radiuses (just changing the radius is not enough, the DC has been optimized for those values, the detector geometry is constrained by many construction/mechanical/electronics/etc considerations -->
<constant name="DCH_half_length" value="2250*mm"/> <!-- this includes the services -->

<constant name="Solenoid_inner_radius" value="2100*mm"/>
<constant name="Solenoid_outer_radius" value="2400*mm"/>
<constant name="Solenoid_half_length" value="2500*mm"/>
<constant name="Solenoid_Coil_half_length" value="Solenoid_half_length-200*mm"/>
<constant name="Solenoid_Coil_radius" value="Solenoid_inner_radius+200*mm"/>

<constant name="ECalBarrel_inner_radius" value="2150*mm"/>
<constant name="ECalBarrel_outer_radius" value="2352*mm"/>
<constant name="ECalBarrel_half_length" value="2210*mm"/>
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<constant name="HCalRing_max_z" value="HCalEndcap_min_z"/>
<constant name="HCalRing_symmetry" value="12"/>

<constant name="Solenoid_inner_radius" value="3719*mm"/>
<constant name="Solenoid_outer_radius" value="4272*mm"/>
<constant name="Solenoid_half_length" value="3705*mm"/>
<constant name="Solenoid_Coil_half_length" value="3476*mm"/>
<constant name="Solenoid_Coil_radius" value="3930*mm"/>

<constant name="YokeBarrel_inner_radius" value="4479*mm"/>
<constant name="YokeBarrel_outer_radius" value="6000*mm"/>
<constant name="YokeBarrel_half_length" value="3755*mm"/>
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29 changes: 29 additions & 0 deletions FCCee/IDEA/compact/IDEA_o1_v02/IDEA_o1_v02.xml
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<!-- Import silicon wrapper -->
<!-- <include ref="SiliconWrapper_o1_v01.xml"/> -->

<!-- Import solenoid -->
<include ref="Solenoid_o1_v01.xml"/>

<plugins>
<plugin name="DD4hepVolumeManager"/>
<plugin name="InstallSurfaceManager"/>
</plugins>

<fields>
<field name="GlobalSolenoid" type="solenoid"
inner_field="SolenoidField"
outer_field="-1.0*tesla"
zmax="Solenoid_Coil_half_length"
outer_radius="Solenoid_Coil_radius">
</field>

<!-- FIXME cross-check this with MDI crew -->
<field name="CompensatingSolenoidZplus" type="solenoid"
inner_field="-SolenoidField -SolenoidField * QD0_min_z / ( QD0_min_z - CompSol_min_z)"
outer_field="0*tesla"
zmax="QD0_min_z"
zmin="CompSol_min_z"
outer_radius="20*cm">
</field>

<field name="CompensatingSolenoidZminus" type="solenoid"
inner_field="-SolenoidField -SolenoidField * QD0_min_z / ( QD0_min_z - CompSol_min_z)"
outer_field="0*tesla"
zmin="-QD0_min_z"
zmax="-CompSol_min_z"
outer_radius="20*cm">
</field>
</fields>

</lccdd>
50 changes: 50 additions & 0 deletions FCCee/IDEA/compact/IDEA_o1_v02/Solenoid_o1_v01.xml
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<lccdd>
<info name="Solenoid" title="Solenoid" status="development" version="$Id: $">
<comment>
This is a solenoid place holder. It has the right spacial extent and overall accounts for the 0.75 X0 but its internals should be revised by ultra-thin magnet designers -->
</comment>
</info>

<define>
<constant name="SolenoidVacuumTank_thickness" value="5*mm"/>
<constant name="SolenoidCoil_thickness" value="16*mm"/>
</define>

<display>
<vis name="SolenoidBarrelLayerVis" alpha="1" r="0" g="0.3" b="0.3" showDaughters="false" visible="true"/>
<vis name="SolenoidCoilEndsVis" alpha="1" r="0" g="0.9" b="0.9" showDaughters="false" visible="true"/>
<vis name="SolenoidVacuum" alpha="0" r="1" g="1" b="1" showDaughters="false" visible="true"/>
</display>

<detectors>

<detector name="Solenoid" type="DD4hep_SubdetectorAssembly" vis="SOLVis">
<shape type="Tube" rmin="Solenoid_inner_radius-2*env_safety" rmax="Solenoid_outer_radius+2*env_safety" dz="Solenoid_half_length+2*env_safety" material="Vacuum"/>
<composite name="SolenoidBarrel"/>
<composite name="SolenoidEndcaps"/>
</detector>

<detector name="SolenoidBarrel" type="DD4hep_Solenoid_o1_v01" id="0" reflect="true">
<type_flags type=" DetType_COIL"/>
<envelope vis="SOLVis">
<shape type="Assembly"/>
</envelope>
<layer id="1" inner_r="Solenoid_inner_radius" outer_z="Solenoid_half_length" vis="SolenoidBarrelLayerVis">
<slice material="Steel235" thickness="SolenoidVacuumTank_thickness"/>
</layer>
<layer id="2" inner_r="Solenoid_Coil_radius-SolenoidCoil_thickness/2.0" outer_z="Solenoid_Coil_half_length">
<slice material="Aluminum" thickness="SolenoidCoil_thickness" vis="SolenoidCoilEndsVis" />
</layer>
<layer id="3" inner_r="Solenoid_outer_radius-SolenoidVacuumTank_thickness" outer_z="Solenoid_half_length" vis="SolenoidBarrelLayerVis">
<slice material="Steel235" thickness="SolenoidVacuumTank_thickness"/>
</layer>
</detector>

<detector name="SolenoidEndcaps" type="DD4hep_DiskTracker" id="0" reflect="true" vis="SolenoidBarrelLayerVis">
<layer id="1" inner_r="Solenoid_inner_radius+SolenoidVacuumTank_thickness" inner_z="Solenoid_half_length-SolenoidVacuumTank_thickness" outer_r="Solenoid_outer_radius-SolenoidVacuumTank_thickness" vis="SolenoidBarrelLayerVis">
<slice material="Steel235" thickness="SolenoidVacuumTank_thickness/2.0" />
</layer>
</detector>

</detectors>
</lccdd>

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