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0001 <!-- SPDX-License-Identifier: LGPL-3.0-or-later -->
0002 <!-- Copyright (C) 2022 Whitney Armstrong, Sylvester Joosten, Wouter Deconinck, Zhenyu Ye -->
0003
0004 <define>
0005 <constant name="Pi" value="3.14159265359"/>
0006 <constant name="mil" value="0.0254*mm"/>
0007 <constant name="inch" value="2.54*cm"/>
0008
0009 <documentation>
0010 ## World volume
0011 </documentation>
0012 <constant name="world_side" value="30*m"/>
0013 <constant name="world_dx" value="world_side"/>
0014 <constant name="world_dy" value="world_side"/>
0015 <constant name="world_dz" value="100*m"/>
0016
0017 <documentation>
0018 ## Detector IDs
0019
0020 ### Note about ACTS tracking geometry construction
0021
0022 The tracking surfaces need to be structured in a barrel + endcapP + endcapN where
0023 endcapP/endcapN are the endcaps at positive/negative z values.
0024 See https://acts.readthedocs.io/en/latest/plugins/dd4hep.html for more details.
0025
0026 The tracking geometry needs to be constructed from cylinders from the inside out. For this reason
0027 each layer needs its own subsystem assembly. This increases the number of top level system IDs.
0028 For example the silicon tracker needs 3 IDs for each area (endcap+barrel+endcap) and a subassembly for each
0029 layer. Therefore it needs a minimum of 20 IDs. Therefore we will allocate blocks of ~25 for each major subsystem.
0030 Note, future improvements will likely include a more sophisticated ACTS-dd4hep plugin,
0031 eliminating the need for so many system IDs at construction time.
0032
0033 This barrel/endcap structure needs IDs to be in increasing order going outward.
0034 The space of IDs for the subassemblies starts at (Subassembly_ID*10+101).
0035
0036 The unused IDs below are saved for future use.
0037 </documentation>
0038
0039 <documentation>
0040
0041 ### Allocated IDs
0042
0043 #### (1-9) Reserved IDs
0044
0045 - Unused IDs: 1-9
0046
0047 #### (10-24) Interaction region beamline
0048
0049 - Beampipe ID : 10-11
0050 - Unused IDs: 12-24
0051
0052 </documentation>
0053 <constant name="BeamPipe_ID" value="10"/>
0054 <constant name="BeamPipeB0_ID" value="11"/>
0055
0056
0057 <documentation>
0058 #### (25-39) Silicon Vertex Tracker
0059
0060 - Vertex subassemblies: 25-27
0061 - Vertex barrel and endcaps: 28-30
0062 - Unused: 28-30
0063 </documentation>
0064 <constant name="VertexSubAssembly_0_ID" value="25"/>
0065 <constant name="VertexSubAssembly_1_ID" value="26"/>
0066 <constant name="VertexSubAssembly_2_ID" value="27"/>
0067
0068 <constant name="VertexBarrel_0_ID" value="31"/>
0069 <constant name="VertexBarrel_1_ID" value="32"/>
0070 <constant name="VertexBarrel_2_ID" value="33"/>
0071 <constant name="VertexEndcapN_0_ID" value="34"/>
0072 <constant name="VertexEndcapN_1_ID" value="35"/>
0073 <constant name="VertexEndcapN_2_ID" value="36"/>
0074 <constant name="VertexEndcapP_0_ID" value="37"/>
0075 <constant name="VertexEndcapP_1_ID" value="38"/>
0076 <constant name="VertexEndcapP_2_ID" value="39"/>
0077
0078 <documentation>
0079 - Unused IDs: 31-39
0080 </documentation>
0081
0082 <documentation>
0083 #### (40-84) Tracker System
0084
0085 - Tracker subassemblies: 40-45
0086 - Composite tracker systems: 46-57
0087 - Tracker detectors: 56-84
0088 Unused IDs: (77-79)
0089
0090 </documentation>
0091
0092 <comment>
0093 SubAssembly IDs should increment from inner to outer
0094 (it's not the definition order but rather the ID order that's used
0095 for construction order in the ACTS geometry conversion)
0096 </comment>
0097 <constant name="TrackerSubAssembly_0_ID" value="40"/>
0098 <constant name="TrackerSubAssembly_1_ID" value="41"/>
0099 <constant name="TrackerSubAssembly_2_ID" value="42"/>
0100 <constant name="TrackerSubAssembly_3_ID" value="43"/>
0101 <constant name="TrackerSubAssembly_4_ID" value="44"/>
0102 <constant name="TrackerSubAssembly_5_ID" value="45"/>
0103 <constant name="TrackerSubAssembly_6_ID" value="46"/>
0104 <constant name="TrackerSubAssembly_7_ID" value="47"/>
0105 <constant name="TrackerSubAssembly_8_ID" value="48"/>
0106 <constant name="TrackerSubAssembly_9_ID" value="49"/>
0107
0108 <constant name="SVT_IB_Support_0_ID" value="50"/>
0109 <constant name="SVT_IB_Support_1_ID" value="51"/>
0110 <constant name="SVT_IB_Support_2_ID" value="52"/>
0111 <constant name="SVT_IB_Support_3_ID" value="53"/>
0112
0113 <constant name="TrackerBarrel_0_ID" value="59"/>
0114 <constant name="TrackerBarrel_1_ID" value="60"/>
0115 <constant name="TrackerBarrel_2_ID" value="61"/>
0116 <constant name="TrackerBarrel_3_ID" value="62"/>
0117 <constant name="TrackerBarrel_4_ID" value="63"/>
0118 <constant name="TrackerBarrel_5_ID" value="64"/>
0119 <constant name="TrackerBarrel_6_ID" value="65"/>
0120 <constant name="TrackerBarrel_7_ID" value="66"/>
0121 <constant name="TrackerBarrel_8_ID" value="67"/>
0122 <constant name="TrackerEndcapN_0_ID" value="68"/>
0123 <constant name="TrackerEndcapN_1_ID" value="69"/>
0124 <constant name="TrackerEndcapN_2_ID" value="70"/>
0125 <constant name="TrackerEndcapN_3_ID" value="71"/>
0126 <constant name="TrackerEndcapN_4_ID" value="72"/>
0127 <constant name="TrackerEndcapN_5_ID" value="73"/>
0128 <constant name="TrackerEndcapN_6_ID" value="74"/>
0129 <constant name="TrackerEndcapN_7_ID" value="75"/>
0130 <constant name="TrackerEndcapN_8_ID" value="76"/>
0131 <constant name="TrackerEndcapP_0_ID" value="77"/>
0132 <constant name="TrackerEndcapP_1_ID" value="78"/>
0133 <constant name="TrackerEndcapP_2_ID" value="79"/>
0134 <constant name="TrackerEndcapP_3_ID" value="80"/>
0135 <constant name="TrackerEndcapP_4_ID" value="81"/>
0136 <constant name="TrackerEndcapP_5_ID" value="82"/>
0137 <constant name="TrackerEndcapP_6_ID" value="83"/>
0138 <constant name="TrackerSupport_0_ID" value="84"/>
0139 <constant name="TrackerSupport_1_ID" value="85"/>
0140
0141 <documentation>
0142 #### (86-99) Reserved IDs
0143
0144 - Unused IDs: 86-89
0145 TBD
0146 </documentation>
0147 <documentation>
0148 #### (90-99) Barrel PID IDs
0149
0150 - DIRC subsystem ID: 90
0151 - Barrel TRD subsystem ID: 91
0152 - Barrel TOF subsystem ID: 92
0153 - Unused IDs: 93-99
0154 </documentation>
0155 <constant name="BarrelDIRC_ID" value="90"/>
0156 <constant name="BarrelTRD_ID" value="91"/>
0157 <constant name="BarrelTOF_ID" value="92"/>
0158 <constant name="TOFSubAssembly_ID" value="93"/>
0159
0160 <documentation>
0161 #### (100-109) Electromagnetic Calorimeter
0162
0163 Ecal subsystem ID: 100
0164 Barrel subassembly ID: 101
0165 EndcapP subassembly ID: 102
0166 EndcapN subassembly ID: 103
0167 Crystal subassembly ID: 104
0168 Barrel2 subassembly ID: 105
0169
0170 Unused IDs: 107-109
0171
0172 </documentation>
0173 <constant name="ECalSubAssembly_ID" value="100"/><!-- DEPRECATED -->
0174 <constant name="EcalSubAssembly_ID" value="100"/>
0175 <constant name="ECalBarrel_ID" value="101"/><!-- DEPRECATED -->
0176 <constant name="EcalBarrel_ID" value="101"/>
0177 <constant name="ECalEndcapP_ID" value="102"/><!-- DEPRECATED -->
0178 <constant name="EcalEndcapP_ID" value="102"/>
0179 <constant name="ECalEndcapN_ID" value="103"/><!-- DEPRECATED -->
0180 <constant name="EcalEndcapN_ID" value="103"/>
0181 <constant name="CrystalEndcap_ID" value="104"/><!-- UNUSED -->
0182 <constant name="ECalBarrel2_ID" value="105"/><!-- DEPRECATED -->
0183 <constant name="EcalBarrel2_ID" value="105"/>
0184 <constant name="ECalEndcapPInsert_ID" value="106"/><!-- DEPRECATED -->
0185 <constant name="EcalEndcapPInsert_ID" value="106"/>
0186
0187 <documentation>
0188 #### (110-119) Hadronic Calorimeter
0189
0190 - Hcal subsystem ID: 110
0191 - Barrel subassembly ID: 111
0192 - EndcapP subassembly ID: 112
0193 - EndcapN subassembly ID: 113
0194
0195 - Unused IDs: 117-119
0196 </documentation>
0197 <constant name="HCalSubAssembly_ID" value="110"/><!-- UNUSED -->
0198 <constant name="HCalBarrel_ID" value="111"/><!-- DEPRECATED -->
0199 <constant name="HcalBarrel_ID" value="111"/>
0200 <constant name="HCalEndcapN_ID" value="113"/><!-- DEPRECATED -->
0201 <constant name="HcalEndcapN_ID" value="113"/>
0202 <constant name="PassiveSteelRingEndcapP_ID" value="114"/>
0203 <constant name="HCalEndcapPInsert_ID" value="115"/><!-- DEPRECATED -->
0204 <constant name="HcalEndcapPInsert_ID" value="115"/>
0205 <constant name="LFHCAL_ID" value="116"/>
0206 <documentation>
0207 #### (120-129) (near) Forward reserved
0208
0209 - Forward RICH ID: 120
0210 - Forward TRD ID: 121
0211 - Forward TOF ID: 122
0212 - Unused IDs: 124-129
0213 </documentation>
0214 <constant name="ForwardRICH_ID" value="120"/>
0215 <constant name="ForwardTRD_ID" value="121"/>
0216 <constant name="ForwardTOF_ID" value="122"/>
0217
0218 <documentation>
0219 #### (130-139) Backward reserved
0220
0221 - Modular RICH ID: 130
0222 - Backward RICH ID: 131
0223 - Backward TOD ID: 132
0224 - Unused IDs: 133-139
0225
0226 </documentation>
0227 <constant name="BackwardRICH_ID" value="131"/>
0228 <constant name="BackwardTOF_ID" value="132"/>
0229
0230 <documentation>
0231 #### (140-149) Central Magnet
0232
0233 - Solenoid ID: 140
0234 - Solenoid support ID: 141
0235 - Solenoid Yoke ID: 142
0236
0237 - Unused IDs: 143-149
0238
0239 </documentation>
0240 <constant name="Solenoid_ID" value="140"/>
0241 <constant name="SolenoidSupport_ID" value="141"/>
0242 <constant name="SolenoidYoke_ID" value="142"/>
0243
0244 <documentation>
0245 #### (150-169) Far Forward Detectors
0246
0247 - Forward Roman Pot ID: 150
0248 - Forward B0 Tracker ID: 151
0249 - Zero Degree Cal. Ecal ID: 160
0250 - Zero Degree Cal. Hcal ID: 161
0251
0252 TODO: A lot of the repeated ID's below should be pushed into a single detector
0253 </documentation>
0254 <constant name="B0Tracker_Station_1_ID" value="150"/>
0255 <constant name="B0Tracker_Station_2_ID" value="151"/>
0256 <constant name="B0Tracker_Station_3_ID" value="152"/>
0257 <constant name="B0Tracker_Station_4_ID" value="153"/>
0258 <constant name="B0Preshower_Station_1_ID" value="154"/>
0259 <constant name="ForwardRomanPot_Station_1_ID" value="155"/>
0260 <constant name="ForwardRomanPot_Station_2_ID" value="156"/>
0261 <constant name="B0TrackerCompanion_ID" value="157"/>
0262 <constant name="B0TrackerSubAssembly_ID" value="158"/>
0263 <constant name="ForwardOffMTracker_station_1_ID" value="159"/>
0264 <constant name="ForwardOffMTracker_station_2_ID" value="160"/>
0265 <constant name="ForwardOffMTracker_station_3_ID" value="161"/>
0266 <constant name="ForwardOffMTracker_station_4_ID" value="162"/>
0267
0268 <constant name="ZDC_1stSilicon_ID" value="163"/>
0269 <constant name="ZDC_Crystal_ID" value="164"/>
0270 <constant name="ZDC_WSi_ID" value="165"/>
0271 <constant name="ZDC_PbSi_ID" value="166"/>
0272 <constant name="ZDC_PbSci_ID" value="167"/>
0273 <!--
0274 <constant name="ZDCEcal_ID" value="163"/>
0275 <constant name="ZDCHcal_ID" value="164"/>
0276 -->
0277 <constant name="HcalFarForwardZDC_SiPMonTile_ID" value="167"/>
0278
0279 <constant name="VacuumMagnetElement_1_ID" value="168"/>
0280 <constant name="B0ECal_ID" value="169"/>
0281
0282 <documentation>
0283 #### (170-189) Far Forward Beamline Magnets
0284 </documentation>
0285 <constant name="B0PF_ID" value="170"/>
0286 <constant name="B0APF_ID" value="171"/>
0287 <constant name="Q1APF_ID" value="172"/>
0288 <constant name="Q1BPF_ID" value="173"/>
0289 <constant name="Q2PF_ID" value="174"/>
0290 <constant name="B1PF_ID" value="175"/>
0291 <constant name="B1APF_ID" value="176"/>
0292 <constant name="B2PF_ID" value="177"/>
0293 <constant name="Q0EF_ID" value="180"/>
0294 <constant name="Q1EF_ID" value="181"/>
0295 <constant name="B0Window_ID" value="182"/>
0296
0297 <documentation>
0298 #### (190-199) Far Backward Beamline Detectors
0299
0300 - Low-Q2 Tagger 1 ID: 195
0301 - Low-Q2 Tagger 2 ID: 196
0302 - Low-Q2 Tagger Vacuum ID: 199
0303
0304 TODO: A lot of the repeated ID's below should be pushed into a single detector
0305 </documentation>
0306 <constant name="LumiCollimator_ID" value="190"/>
0307 <constant name="LumiDipole_ID" value="191"/>
0308 <constant name="LumiWindow_ID" value="192"/>
0309 <constant name="LumiSpecTracker_ID" value="193"/>
0310 <constant name="LumiSpecCAL_ID" value="194"/>
0311 <constant name="LumiDirectPCAL_ID" value="195"/>
0312
0313 <constant name="BackwardsBeamline_ID" value="197"/>
0314 <constant name="TaggerTracker_ID" value="198"/>
0315 <constant name="TaggerCalorimeter_ID" value="199"/>
0316
0317 <documentation>
0318 ## Detector Definition Parameters
0319
0320 ## Constant naming convention
0321
0322 SubSystemNameFurtherDescriptor_quantity
0323
0324 Examples:
0325 - TrackerBarrelInside_length
0326 - EcalEndcapP_rmin
0327 - TOFEndcapLayer_thickness
0328
0329 ### Naming Barrel and Endcaps
0330
0331 - **Barrel**
0332 - **EndcapP**
0333 - Postive Endcap (+z direction)
0334 - This is the ion beam side
0335 - **EndcapN**
0336 - Negative Endcap (-z direction)
0337 - This is the electron beam side
0338
0339 ## Parameter nomenclature
0340
0341 - "rmin", "rmax", "thickness" all refer to the radial direction.
0342 - "zmin", "zmax", "length", "offset" all refer to the z direction.
0343 - Positive and Negative are "EndcapP" and "EndcapN", respectively.
0344 - All values are positive (except offsets, which are positive in the hadron direction, i.e. towards EndCapP).
0345 When refering to a negative endcap z position, the values are
0346 also positive then negated when required. (Many endcap constructions are mirrored,
0347 hence a postive value.)
0348 - We will try to keep the subsystem component name first and the parameter after an "_" (eg, EcalBarrel_length").
0349
0350 </documentation>
0351
0352 <documentation>
0353 ## Rapidity constants
0354 </documentation>
0355 <constant name="Eta1_1_tan" value="tan(2*atan(exp(-1.1)))" />
0356 <constant name="Eta1_4_tan" value="tan(2*atan(exp(-1.4)))" />
0357 <constant name="Eta3_5_tan" value="tan(2*atan(exp(-3.5)))" />
0358 <constant name="Eta3_6_tan" value="tan(2*atan(exp(-3.6)))" />
0359 <constant name="Eta3_7_tan" value="tan(2*atan(exp(-3.7)))" />
0360 <constant name="Eta3_8_tan" value="tan(2*atan(exp(-3.8)))" />
0361 <constant name="Eta3_9_tan" value="tan(2*atan(exp(-3.9)))" />
0362 <constant name="Eta4_0_tan" value="tan(2*atan(exp(-4.0)))" />
0363 <constant name="Eta4_1_tan" value="tan(2*atan(exp(-4.1)))" />
0364 <constant name="Eta4_2_tan" value="tan(2*atan(exp(-4.2)))" />
0365 <constant name="Eta4_3_tan" value="tan(2*atan(exp(-4.3)))" />
0366 <constant name="Eta4_4_tan" value="tan(2*atan(exp(-4.4)))" />
0367 <constant name="Eta4_5_tan" value="tan(2*atan(exp(-4.5)))" />
0368 <constant name="Eta4_6_tan" value="tan(2*atan(exp(-4.6)))" />
0369 <constant name="Eta4_7_tan" value="tan(2*atan(exp(-4.7)))" />
0370 <constant name="Eta4_8_tan" value="tan(2*atan(exp(-4.8)))" />
0371
0372 <comment>Solenoid option</comment>
0373
0374 <documentation>
0375 ## Solenoid Magnet Parameters
0376
0377 When changing here, also change the include file in athena.xml.
0378 </documentation>
0379
0380 <comment>Solenoid option (BaBar magnet)</comment>
0381 <constant name="Solenoid_length" value="3840.0*mm"/>
0382 <constant name="Solenoid_rmin" value="1420.0*mm"/>
0383 <constant name="Solenoid_thickness" value="350*mm"/>
0384 <constant name="Solenoid_offset" value="-100*mm"/>
0385
0386 <comment>Solenoid option (ATHENA design)</comment>
0387 <comment>
0388 <constant name="Solenoid_length" value="3840.0*mm"/>
0389 <constant name="Solenoid_rmin" value="1600.0*mm"/>
0390 <constant name="Solenoid_thickness" value="455*mm"/>
0391 <constant name="Solenoid_offset" value="-240*mm"/>
0392 </comment>
0393
0394 <comment>Helmholtz option</comment>
0395 <comment>
0396 <constant name="Solenoid_length" value="3840.0*mm"/>
0397 <constant name="Solenoid_rmin" value="1655.0*mm"/> <comment> Larger inner bore radius </comment>
0398 <constant name="Solenoid_thickness" value="640*mm"/>
0399 <constant name="Solenoid_offset" value="10*mm"/>
0400 </comment>
0401
0402 <constant name="Solenoid_rmax" value="Solenoid_rmin + Solenoid_thickness"/>
0403 <constant name="SolenoidForward_zmax" value="Solenoid_length/2. + Solenoid_offset"/>
0404 <constant name="SolenoidBackward_zmax" value="Solenoid_length/2. - Solenoid_offset"/>
0405 <constant name="SolenoidBarrel_rmin" value="Solenoid_rmin"/>
0406 <constant name="SolenoidBarrel_length" value="Solenoid_length"/>
0407
0408 <documentation>
0409 ## IP6 Beam Pipe Parameters - Note might need cleaning
0410 </documentation>
0411 <constant name="CrossingAngle" value="-0.025*rad "/>
0412 <constant name="ionCrossingAngle" value="CrossingAngle"/>
0413 <constant name="electronCrossingAngle" value="0.0"/>
0414 <constant name="CrossingSlope" value="CrossingAngle"/>
0415
0416 <constant name="IPBeampipe_rmax" value="2.501*25.4*mm/2.0"/>
0417 <constant name="Beampipe_rmax" value="IPBeampipe_rmax"/>
0418 <constant name="IPBeampipeID" desc="IP6 beam pipe inner diam w/o coating" value="62*mm"/>
0419
0420 <documentation>
0421 ## Central Beam Pipe Parameters
0422 </documentation>
0423 <constant name="IPBeampipeUpstreamStraightLength" value="74.8 * cm"/>
0424 <constant name="IPBeampipeDownstreamStraightLength" value="64.8 * cm"/>
0425 <constant name="BeampipeOD" value="62 * mm"/>
0426 <constant name="HadronConeOpenAngle" value="0.020 * rad + abs(CrossingAngle)"/>
0427
0428 <documentation>
0429 ## Outgoing Lepton Beam Pipe Parameters
0430 </documentation>
0431 <constant name="OutgoingLeptonBeamPipe_z0" value="IPBeampipeUpstreamStraightLength"/>
0432 <constant name="OutgoingLeptonBeamPipe_z1" value="454.449 * cm"/>
0433 <constant name="OutgoingLeptonBeamPipe_d0" value="IPBeampipeID"/>
0434 <constant name="OutgoingLeptonBeamPipe_d1" value="IPBeampipeID"/>
0435
0436 <documentation>
0437 ## Incoming Hadron Beam Pipe Parameters
0438 </documentation>
0439 <constant name="IncomingHadronBeamPipe_z0" value="75.6*cm"/>
0440 <constant name="IncomingHadronBeamPipe_z1" value="247.298*cm"/>
0441 <constant name="IncomingHadronBeamPipe_z2" value="IncomingHadronBeamPipe_z1 + 2.54*cm"/>
0442 <constant name="IncomingHadronBeamPipe_z3" value="IncomingHadronBeamPipe_z2 + 170.2*cm"/>
0443 <constant name="IncomingHadronBeamPipe_z4" value="IncomingHadronBeamPipe_z3 + 1.27*cm"/>
0444 <constant name="IncomingHadronBeamPipe_z5" value="IncomingHadronBeamPipe_z4 + 32.769*cm"/>
0445 <constant name="IncomingHadronBeamPipe_d0" value="2.527*cm"/>
0446 <constant name="IncomingHadronBeamPipe_d1" value="2.527*cm"/>
0447 <constant name="IncomingHadronBeamPipe_d2" value="3.48*cm"/>
0448 <constant name="IncomingHadronBeamPipe_d3" value="3.48*cm"/>
0449 <constant name="IncomingHadronBeamPipe_d4" value="4.115*cm"/>
0450 <constant name="IncomingHadronBeamPipe_d5" value="4.115*cm"/>
0451
0452 <documentation>
0453 ## Tracking Detector Parameters
0454 </documentation>
0455
0456 <documentation>
0457 ### Vertex Tracking Region
0458 </documentation>
0459 <constant name="VertexTrackingRegion_rmin" value="Beampipe_rmax + 1.0*mm" />
0460 <constant name="VertexTrackingRegion_rmax" value="100.0*mm" />
0461 <constant name="VertexTrackingRegionP_zmax" value="240.0*mm" />
0462 <constant name="VertexTrackingRegionN_zmax" value="240.0*mm" />
0463 <constant name="VertexTrackingRegion_length" value="VertexTrackingRegionP_zmax + VertexTrackingRegionN_zmax" />
0464
0465 <documentation>
0466 ### Central Tracking Region
0467 TrackerBarrel_rmax: also the rmin for the barrel PID system (DIRC)
0468 Note: The barrel rmax and endcap lengths are the maximum extent allowed for
0469 the barrel and endcap layers, not the position of the final layer.
0470
0471
0472 </documentation>
0473
0474 <constant name="CentralTrackingRegion_rmax" value="755.0*mm" />
0475 <constant name="CentralTrackingRegionP_zmax" value="1800.0*mm" />
0476 <constant name="CentralTrackingRegionN_zmax" value="1235.0*mm" />
0477 <constant name="CentralTrackingRegion_length" value="CentralTrackingRegionP_zmax + CentralTrackingRegionN_zmax" />
0478 <comment>
0479 tan(theta) to determine rmin in the outer tracking region (due to tapered beampipe)
0480 </comment>
0481 <constant name="CentralTrackingBarrel_tan" value="Eta1_1_tan" />
0482 <constant name="CentralTrackingRegionP_tan" value="Eta3_7_tan * 1.00" />
0483 <constant name="CentralTrackingRegionN_tan" value="Eta4_0_tan * 0.99" />
0484
0485 <constant name="InnerDetectorBarrelSupportCylinder_thickness" value="1*cm"/>
0486 <constant name="InnerDetectorBarrelSupportCylinder_rmin" value="71.0*cm"/> <!-- EPIC Envelope - 03-12-2025.stp -->
0487 <constant name="InnerDetectorBarrelSupportCylinder_rmax" value="InnerDetectorBarrelSupportCylinder_rmin + InnerDetectorBarrelSupportCylinder_thickness"/>
0488
0489 <documentation level="0">
0490 ### PID Detector Region Parameters
0491 </documentation>
0492
0493 <comment> Global PID regions with suballocations for TOF and RICH detectors </comment>
0494 <constant name="ForwardPIDRegion_zmin" value="CentralTrackingRegionP_zmax" />
0495 <constant name="ForwardPIDRegion_length" value="135.0*cm" />
0496 <constant name="ForwardPIDRegion_rmax" value="180.0*cm" />
0497 <constant name="ForwardTOFRegion_length" value="15.0*cm" />
0498
0499 <comment> Forward RICH region </comment>
0500 <constant name="ForwardRICHRegion_zmin" value="ForwardPIDRegion_zmin + ForwardTOFRegion_length" />
0501 <constant name="ForwardRICHRegion_length" value="ForwardPIDRegion_length - ForwardTOFRegion_length" />
0502 <comment> Tangent of the opening angle at the front and back of the RICH </comment>
0503 <constant name="ForwardRICHRegion_tan1" value="CentralTrackingRegionP_tan * 1.20" />
0504 <constant name="ForwardRICHRegion_tan2" value="Eta3_6_tan * 1.20" />
0505
0506 <comment> Backward PID region, TOF + pfRICH </comment>
0507 <comment> Important: CentralTrackingRegionN_zmax is positive, we treat it like that here as well. Inside pfrich.xml it gets correctly assigned </comment>
0508 <constant name="BackwardPIDRegion_length" value="45.0*cm" />
0509 <constant name="BackwardPIDRegion_zmin" value="CentralTrackingRegionN_zmax" />
0510 <constant name="BackwardPIDRegion_zmax" value="BackwardPIDRegion_zmin + BackwardPIDRegion_length" />
0511 <constant name="BackwardPIDRegion_rmax" value="65.0*cm" /> <!-- FIXME hardcoded, was CentralTrackingRegion_rmax -->
0512 <constant name="BackwardPIDRegion_tan" value="CentralTrackingRegionN_tan * 0.92" />
0513
0514 <comment> Backward RICH region </comment>
0515 <constant name="BackwardRICHRegion_zmax" value="BackwardPIDRegion_zmax" />
0516 <constant name="BackwardRICHRegion_length" value="BackwardPIDRegion_length" />
0517
0518 <comment> Backward TOF region, currently empty for upgrades </comment>
0519 <constant name="BackwardTOFRegion_zmin" value="BackwardRICHRegion_zmax" />
0520 <constant name="BackwardTOFRegion_length" value="BackwardPIDRegion_length - BackwardRICHRegion_length" />
0521
0522 <comment> Note: PID has space for DIRC, ExtraSpace sits past the PID</comment>
0523 <constant name="BarrelPIDRegion_thickness" value="7.0 * cm" />
0524 <constant name="BarrelExtraSpace_thickness" value="0.0 * cm" />
0525
0526 <documentation>
0527 ## Forward/backward tracking region behind the PID detectors
0528 </documentation>
0529
0530 <constant name="BackwardTrackingRegion_tan" value="CentralTrackingRegionN_tan" />
0531 <constant name="BackwardTrackingRegion_zmin" value="BackwardPIDRegion_zmin + BackwardPIDRegion_length" />
0532 <constant name="ForwardTrackingRegion_tan" value="ForwardRICHRegion_tan2" />
0533 <constant name="ForwardTrackingRegion_zmin" value="ForwardPIDRegion_zmin + ForwardPIDRegion_length" />
0534 <constant name="ForwardTrackingRegion_length" value="0.0*cm" />
0535 <constant name="BackwardTrackingRegion_length" value="15.0*cm" />
0536
0537 <comment> Total length of the endcap detectors in front of the calorimeter</comment>
0538 <constant name="BackwardInnerEndcapRegion_length" value="BackwardPIDRegion_length + BackwardTrackingRegion_length"/>
0539 <constant name="ForwardInnerEndcapRegion_length" value="ForwardPIDRegion_length + ForwardTrackingRegion_length"/>
0540
0541 <documentation>
0542 ## Service gaps
0543
0544 Service gaps in FW direction (before endcapP ECAL) and BW direction (before endcapN HCAL)
0545 </documentation>
0546 <constant name="ForwardInnerEndcapRegionExtraSpace_length" value="4.6*cm"/>
0547 <constant name="ForwardServiceGap_length" value="15.4*cm"/>
0548 <constant name="ForwardServiceGap_zmin" value="ForwardPIDRegion_zmin + ForwardInnerEndcapRegion_length + ForwardInnerEndcapRegionExtraSpace_length"/>
0549 <constant name="ForwardServiceGap_zmax" value="ForwardServiceGap_zmin + ForwardServiceGap_length"/>
0550
0551 <comment> Radial service gap between dRICH and HcalBarrel </comment>
0552 <constant name="ForwardServiceGap_thickness" value="10.0*cm"/>
0553 <constant name="ForwardServiceGap_rmin" value="ForwardPIDRegion_rmax"/>
0554 <constant name="ForwardServiceGap_rmax" value="ForwardServiceGap_rmin + ForwardServiceGap_thickness"/>
0555
0556 <constant name="BackwardServiceGap_length" value="15.0 * cm"/>
0557 <constant name="BackwardServiceGap_zmin" value="316.0 * cm"/> <!-- FIXME hardcoded -->
0558 <constant name="BackwardServiceGap_zmax" value="BackwardServiceGap_zmin + BackwardServiceGap_length"/>
0559
0560
0561 <documentation level="3">
0562 ## Calorimeter Parameters
0563 </documentation>
0564 <constant name="EcalBarrelSectorsN" value="48"/>
0565
0566 <constant name="EcalEndcapP_numLayers" value="1"/>
0567 <constant name="EcalEndcapP_zmin" value="ForwardServiceGap_zmax"/>
0568 <constant name="EcalEndcapP_CoverThickness" value="0.343*mm"/>
0569 <constant name="EcalEndcapP_AirThickness" value="61.457*mm"/>
0570 <constant name="EcalEndcapP_PCBThickness" value="4.5*mm"/>
0571 <constant name="EcalEndcapP_LightGuideThickness" value="21.0*mm"/>
0572 <constant name="EcalEndcapP_ScintillatorThickness" value="170.0*mm"/>
0573 <constant name="EcalEndcapP_MountingPlateThickness" value="12.7*mm"/>
0574 <constant name="EcalEndcapP_length" value="EcalEndcapP_CoverThickness+EcalEndcapP_AirThickness+EcalEndcapP_PCBThickness+EcalEndcapP_LightGuideThickness+EcalEndcapP_ScintillatorThickness+EcalEndcapP_MountingPlateThickness"/>
0575 <constant name="EcalEndcapP_zmax" value="EcalEndcapP_zmin + EcalEndcapP_length"/>
0576 <constant name="EcalEndcapP_xOffsetNorth" value="0.685/2.0*cm"/>
0577 <constant name="EcalEndcapP_xOffsetSouth" value="0.685/2.0*cm"/>
0578 <constant name="EcalEndcapP_yOffsetNorth" value="0.0*cm"/>
0579 <constant name="EcalEndcapP_yOffsetSouth" value="0.0*cm"/>
0580 <constant name="EcalEndcapP_nsGap" value="EcalEndcapP_xOffsetNorth+EcalEndcapP_xOffsetSouth"/>
0581 <constant name="EcalEndcapP_rmin" value="0.0*inch"/>
0582 <constant name="EcalEndcapP_rmax" value="81.0*inch"/>
0583 <constant name="EcalEndcapP_rmaxWithGap" value="EcalEndcapP_rmax + EcalEndcapP_nsGap/2.0"/>
0584 <constant name="EcalEndcapP_blockSize" value="10.0*cm"/>
0585 <constant name="EcalEndcapP_blockLength" value="17.0*cm"/>
0586 <constant name="EcalEndcapP_spaceBetweenBlock" value="0.1*cm"/>
0587 <constant name="EcalEndcapP_xOffsetBeamPipeNorth" value="3.0/4.0*EcalEndcapP_blockSize"/>
0588 <constant name="EcalEndcapP_xOffsetBeamPipeSouth" value="2.0*EcalEndcapP_blockSize + 2.0*EcalEndcapP_spaceBetweenBlock"/>
0589 <constant name="EcalEndcapP_insert_dy" value="3.0*EcalEndcapP_blockSize + 3.0*EcalEndcapP_spaceBetweenBlock"/>
0590 <constant name="EcalEndcapP_insert_dz" value="EcalEndcapP_length"/>
0591 <constant name="EcalEndcapP_insert_thickness" value="0.25*inch"/>
0592 <constant name="EcalEndcapP_insert_center_x" value="(EcalEndcapP_xOffsetBeamPipeNorth-EcalEndcapP_xOffsetBeamPipeSouth)/2.0"/>
0593 <constant name="EcalEndcapP_nfiber_x" value="26"/>
0594 <constant name="EcalEndcapP_nfiber_y" value="30"/>
0595 <constant name="EcalEndcapP_rfiber" value="0.0235*cm"/>
0596 <constant name="EcalEndcapP_rscfi" value="0.02209*cm"/>
0597
0598 <!-- <constant name="EcalEndcapN_zmin" value="BackwardPIDRegion_zmin + BackwardInnerEndcapRegion_length"/> -->
0599 <constant name="EcalEndcapN_zmin" value="175*cm"/> <!-- Currently fix value hardcoded -->
0600 <constant name="EcalEndcapN_length" value="60*cm" /> <!-- Currently fix value hardcoded -->
0601 <constant name="EcalEndcapN_zmax" value="EcalEndcapN_zmin + EcalEndcapN_length"/>
0602
0603 <comment>
0604 rmin1: rmin round electron pipe (ignoring the hadron pipe)
0605 rmin2: rmin around both beam pipes
0606 </comment>
0607 <constant name="EcalEndcapN_rmin1" value="Eta4_6_tan * EcalEndcapN_zmin"/>
0608 <constant name="EcalEndcapN_rmin2" value="Eta3_9_tan * EcalEndcapN_zmin"/>
0609 <constant name="EcalEndcapN_rmin" value="9.*cm"/> <!-- Currently fix value hardcoded -->
0610 <constant name="EcalEndcapN_rmax" value="63.*cm"/> <!-- Currently fix value hardcoded -->
0611
0612 <constant name="EcalBarrel_rmin" value="max(82.*cm, CentralTrackingRegion_rmax + BarrelPIDRegion_thickness + BarrelExtraSpace_thickness)"/>
0613 <constant name="EcalBarrelRegion_thickness" value="Solenoid_rmin-EcalBarrel_rmin"/>
0614 <constant name="EcalBarrel_inner_margin" value="2*cm"/>
0615 <constant name="EcalBarrel_rmax" value="EcalBarrel_rmin + EcalBarrelRegion_thickness"/>
0616 <constant name="EcalBarrelForward_zmax" value="ForwardRICHRegion_zmin"/> <!-- FIXME currently unable to accommodate actual position -->
0617 <constant name="EcalBarrelBackward_zmax" value="BackwardServiceGap_zmax"/> <!-- FIXME should be -389 cm -->
0618 <constant name="EcalBarrel_length" value="EcalBarrelForward_zmax + EcalBarrelBackward_zmax"/>
0619 <constant name="EcalBarrel_offset" value="(EcalBarrelForward_zmax - EcalBarrelBackward_zmax)/2.0"/>
0620 <constant name="EcalBarrelReadout_length" value="20*cm"/>
0621
0622 <documentation level="3">
0623 ## Special DIRC parameters (depend on the ECAL setup)
0624 </documentation>
0625 <constant name="DIRCReadout_length" value="30*cm"/>
0626 <comment> Leave 1.9 cm space from the end of mirror to the end of bar box in +z </comment>
0627 <constant name="DIRCMirror_thickness" value="1 * mm"/>
0628 <constant name="DIRCBarbox_space_z" value="1.9*cm"/>
0629 <constant name="DIRCLens_thickness" value="12 * mm"/>
0630 <constant name="DIRCForward_length" value="0*cm"/>
0631 <constant name="DIRCForward_zmax" value="CentralTrackingRegionP_zmax + 5*cm"/>
0632 <constant name="DIRCBackward_zmax" value="303*cm"/>
0633 <constant name="DIRC_thickness" value="3.1*cm"/>
0634 <constant name="DIRC_length" value="DIRCForward_zmax + DIRCBackward_zmax"/>
0635 <constant name="DIRC_offset" value="(DIRCForward_zmax - DIRCBackward_zmax - DIRCMirror_thickness - DIRCBarbox_space_z + DIRCLens_thickness + DIRCReadout_length)/2"/>
0636 <comment>
0637 The DIRC_rmin/rmax values are defined at the center of each stave, such that
0638 the DIRC_rmax can also be used as the OuterBarrelMPGD_rmin value.
0639 </comment>
0640 <constant name="DIRC_rmin" value="CentralTrackingRegion_rmax"/>
0641 <constant name="DIRC_rmax" value="DIRC_rmin + DIRC_thickness"/>
0642
0643 <documentation>
0644 ## Hadronic Calorimeter Parameters
0645 </documentation>
0646
0647 <constant name="HcalBarrelStavesN" value="12"/>
0648
0649 <constant name="LFHCAL_zmin" value="EcalEndcapP_zmin + EcalEndcapP_length"/>
0650 <comment> LFHCAL module is 132 cm total, attached to 1-inch mounting plate </comment>
0651 <constant name="LFHCAL_length" value="134.54*cm"/>
0652 <constant name="LFHCAL_zmax" value="LFHCAL_zmin + LFHCAL_length"/>
0653
0654 <constant name="HcalEndcapPInsert_zmin" value="EcalEndcapP_zmin + EcalEndcapP_length"/>
0655 <constant name="HcalEndcapPInsert_length" value="134.75*cm"/>
0656 <constant name="HcalEndcapPInsert_zmax" value="HcalEndcapPInsert_zmin + HcalEndcapPInsert_length"/>
0657 <constant name="HcalEndcapPInsert_width" value="59.26*cm"/>
0658 <constant name="HcalEndcapPInsert_height" value="59.29*cm"/>
0659 <constant name="HcalEndcapPInsert_xposition" value="-10.0*cm"/>
0660 <constant name="HcalEndcapPInsert_yposition" value="0.0*cm"/>
0661 <constant name="HcalEndcapPInsert_hole_radius" value="14.61*cm"/>
0662 <constant name="HcalEndcapPInsert_hole_xposition" value="-7.20*cm"/>
0663 <constant name="HcalEndcapPInsert_hole_yposition" value="0.0*cm"/>
0664
0665 <constant name="HcalEndcapN_CaloSides" value="60"/>
0666 <constant name="HcalEndcapN_zmin" value="BackwardServiceGap_zmax + 44.0 * cm"/> <!-- 44 cm gap between service gap, includes 28.5 cm oculus -->
0667 <constant name="HcalEndcapN_length" value="65.0*cm"/>
0668 <constant name="HcalEndcapN_zmax" value="HcalEndcapN_zmin + HcalEndcapN_length"/>
0669 <comment> HcalEndcapN needs to clear the straight beampipe with 1 * crossing angle + its radius of 22.25 mm </comment>
0670 <constant name="HcalEndcapN_rmin" value="max((HcalEndcapN_zmin + HcalEndcapN_length) * tan(abs(CrossingAngle)) + 22.25 * mm, 14.0 * cm)"/>
0671
0672 <documentation>
0673 ## Barrel HCAL Parameters
0674
0675 Hard-coded numbers are taken from the 3D model for the sPHENIX HCAL, see:
0676
0677 https://github.com/eic/epic-data/tree/main/barrel_HCAL_gdml
0678
0679 for 3D model files and FreeCAD projects.
0680 </documentation>
0681
0682 <constant name="HcalBarrel_thickness" value="86.18*cm"/>
0683 <constant name="HcalBarrel_rmin1" value="183.85*cm"/>
0684 <constant name="HcalBarrel_rmin" value="HcalBarrel_rmin1"/><!--DEPRECATED-->
0685 <constant name="HcalBarrel_rmin2" value="HcalBarrel_rmin1 + 10.4*cm"/>
0686 <constant name="HcalBarrel_rmax" value="HcalBarrel_rmin1 + HcalBarrel_thickness"/>
0687 <constant name="HcalBarrelForward_zmax" value="319.625*cm"/>
0688 <constant name="HcalBarrelBackward_zmax" value="HcalBarrelForward_zmax"/>
0689 <constant name="HcalBarrel_length2" value="HcalBarrelForward_zmax + HcalBarrelBackward_zmax"/>
0690 <constant name="HcalBarrel_length1" value="319.0*cm"/>
0691 <constant name="HcalBarrel_offset" value="(HcalBarrelForward_zmax - HcalBarrelBackward_zmax)/2"/>
0692
0693 <constant name="HcalEndcapN_rmax" value="min(HcalBarrel_rmax, 267.0 * cm)"/>
0694
0695 <comment> Lepton_Assy_21.stp, rwimmer, 2024-04-03 </comment>
0696 <constant name="FluxEndcapN_collar_rmax" value="326.2*cm"/>
0697 <constant name="FluxEndcapN_collar_rmin" value="275.0*cm"/>
0698 <constant name="FluxEndcapN_collar_thickness" value="120.38*cm"/>
0699 <constant name="FluxEndcapN_oculus_rmax" value="FluxEndcapN_collar_rmin"/>
0700 <constant name="FluxEndcapN_oculus_rmin" value="221.6*cm"/>
0701 <constant name="FluxEndcapN_oculus_thickness" value="28.5*cm"/>
0702 <constant name="FluxEndcapN_exterior_rmax" value="FluxEndcapN_collar_rmin*cm"/>
0703 <constant name="FluxEndcapN_exterior_rmin" value="16*cm"/>
0704 <constant name="FluxEndcapN_exterior_thickness" value="10*cm"/>
0705
0706 <comment> Hadron End Cap Assembly_North Half.stp, rwimmer, 2024-04-03 </comment>
0707 <constant name="FluxEndcapP_collar_rmax" value="326.2*cm"/>
0708 <constant name="FluxEndcapP_collar_rmin" value="289.56*cm"/>
0709 <constant name="FluxEndcapP_collar_thickness" value="167.14*cm"/>
0710 <constant name="FluxEndcapP_oculus_rmax" value="FluxEndcapP_collar_rmin"/>
0711 <constant name="FluxEndcapP_oculus_rmin" value="210.0*cm"/>
0712 <constant name="FluxEndcapP_oculus_thickness" value="22.2*cm"/>
0713
0714 <comment> LFHCAL includes support, which is part of the flux return </comment>
0715 <constant name="LFHCAL_rmax" value="FluxEndcapP_collar_rmin"/>
0716
0717 <comment> STAR Asm for EPIC w cradle.stp, rwimmer, 2024-04-03 </comment>
0718 <constant name="FluxBarrelForward_zmax" value="320*cm"/>
0719 <constant name="FluxBarrelBackward_zmax" value="FluxBarrelForward_zmax"/>
0720 <constant name="FluxBarrel_thickness" value="62.5*cm"/> <!-- for envelope only -->
0721 <constant name="FluxBarrel_rmin" value="273.05*cm"/>
0722 <constant name="FluxBarrel_rmax" value="FluxBarrel_rmin + FluxBarrel_thickness"/>
0723 <constant name="FluxBarrel_length" value="FluxBarrelForward_zmax + FluxBarrelBackward_zmax"/>
0724 <constant name="FluxBarrel_offset" value="(FluxBarrelForward_zmax - FluxBarrelBackward_zmax)/2.0"/>
0725
0726 <comment>
0727 These are used by ddsim, the region where we store all secondaries
0728
0729 For now they are forced to be symmetric, and we cover up to the start of the backward ECAL.
0730 (this means in the forward region we stop in the middle of the RICH).
0731 </comment>
0732
0733 <constant name="tracker_region_rmax" value="EcalBarrel_rmin"/>
0734 <constant name="tracker_region_zmax" value="+EcalEndcapP_zmin"/>
0735 <constant name="tracker_region_zmin" value="-EcalEndcapN_zmin"/>
0736
0737 </define>
