eic · ruse-traveler · Nov 14, 2025 · Nov 14, 2025 · Nov 14, 2025 · Nov 14, 2025
diff --git a/compact/ecal/backward_PbWO4.xml b/compact/ecal/backward_PbWO4.xml
@@ -73,6 +73,7 @@
         name="EcalEndcapN"
         type="epic_HomogeneousCalorimeter"
         readout="EcalEndcapNHits">
+      <type_flags type="DetType_CALORIMETER + DetType_ENDCAP + DetType_ELECTROMAGNETIC"/>
       <position x="0" y="0" z="-(EcalEndcapN_zmin + EcalEndcapN_envelope_length / 2.)"/>
       <rotation x="0" y="0." z="0"/>
       <placements>

diff --git a/compact/ecal/bic/bic.xml b/compact/ecal/bic/bic.xml
@@ -325,6 +325,7 @@
       calorimeterType="EM_BARREL"
       vis="EcalBarrelEnvelopeVis"
       offset="EcalBarrel_Calorimeter_offset">
+      <type_flags type="DetType_CALORIMETER + DetType_BARREL + DetType_ELECTROMAGNETIC"/>
       <dimensions numsides="EcalBarrel_SectorRepeat"
         rmin="EcalBarrel_rmin"
         z="EcalBarrel_Calorimeter_length"/>

diff --git a/compact/far_backward/beamline_electron.xml b/compact/far_backward/beamline_electron.xml
@@ -13,6 +13,7 @@
     type="BeamPipeChain"
     wall_thickness="1 * mm"
     vis="BeamPipeVis">
+      <type_flags type="DetType_ENDCAP + DetType_BEAMPIPE"/>
       <pipe id="0" name="Pipe_to_Q1eR"
         xcenter="0" zcenter="(Center_Beampipe_End + Q1eR_CenterPosition+Q1eR_Length/2)/2"
         length="Center_Beampipe_End - (Q1eR_CenterPosition+Q1eR_Length/2)" theta="0"

diff --git a/compact/far_backward/beamline_extension_electron.xml b/compact/far_backward/beamline_extension_electron.xml
@@ -15,6 +15,7 @@
     name="Pipe_Q3eR_to_B7eR"
     type="BeamPipeChain"
     wall_thickness="2*mm">
+      <type_flags type="DetType_ENDCAP + DetType_BEAMPIPE"/>
       <pipe id="0" name="Pipe_in_Q3eR"
         xcenter="Q3eR_XPosition" zcenter="Q3eR_CenterPosition"
         length="Q3eR_Length" theta="Q3eR_Theta"

diff --git a/compact/far_backward/beamline_extension_hadron.xml b/compact/far_backward/beamline_extension_hadron.xml
@@ -48,6 +48,7 @@
     name="Pipe_Q1APR_to_B1PR"
     type="BeamPipeChain"
     wall_thickness="2*mm">
+      <type_flags type="DetType_ENDCAP + DetType_BEAMPIPE"/>
       <pipe id="0" name="Pipe_to_Q1APR"
         xcenter="(Hadron_Beampipe_End*sin(CrossingAngle)+Q1APR_StartX)/2." zcenter="(Hadron_Beampipe_End*cos(CrossingAngle)+Q1APR_StartZ)/2."
         length="sqrt((Hadron_Beampipe_End*sin(CrossingAngle)-Q1APR_StartX)^2+(Hadron_Beampipe_End*cos(CrossingAngle)-Q1APR_StartZ)^2)" theta="CrossingAngle"

diff --git a/compact/far_backward/beamline_tracking.xml b/compact/far_backward/beamline_tracking.xml
@@ -8,6 +8,8 @@
     name="Pipe_tracker"
     readout="BackwardsBeamlineHits">
 
+        <type_flags type="DetType_TRACKER + DetType_ENDCAP + DetType_BEAMPIPE"/>
+
         <slice
         pipe_id="0"
         grandmother="Pipe_Q1eR_to_B2BeR"

diff --git a/compact/far_backward/lumi/spec_ScFi_cal.xml b/compact/far_backward/lumi/spec_ScFi_cal.xml
@@ -5,6 +5,7 @@
 
         <detectors>
                 <detector id="LumiSpecCAL_ID" name="LumiSpecCAL" type="EcalLumiSpecWScFi" vis="LumiSpecCAL_LayerVis" readout="EcalLumiSpecHits" sizeXY="LumiSpecCAL_DXY" sizeZ="LumiSpecCAL_DZ" nmod_perlayer="LumiSpecCAL_XYLayers" nlayer="LumiSpecCAL_ZLayers" >
+                        <type_flags type="DetType_CALORIMETER + DetType_ENDCAP + DetType_ELECTROMAGNETIC"/>
                         <position x="0.0*cm"  y="0.0*cm"  z="0.0*cm"/>
                         <rotation x="0.0*rad" y="0.0*rad" z="0.0*rad"/>
 

diff --git a/compact/far_backward/lumi/spec_homo_cal.xml b/compact/far_backward/lumi/spec_homo_cal.xml
@@ -5,6 +5,7 @@
 
   <detectors>
     <detector id="LumiSpecCAL_ID" name="LumiSpecCAL" type="LumiSpecHomoCAL" vis="FFPreVis" readout="LumiSpecCALHits" sizeXY="LumiSpecCAL_DXY">
+      <type_flags type="DetType_CALORIMETER + DetType_ENDCAP + DetType_ELECTROMAGNETIC"/>
       <module sizex="LumiSpecCALTower_DXY" sizey="LumiSpecCALTower_DXY" sizez="LumiSpecCALTower_DZ" frameSize="0.0*mm" material="PbWO4" vis="FFPreModuleVis"/>
       <sector id="0">
         <position x="0.0*cm" y="LumiSpecCAL_Y" z="LumiSpecCAL_Z"/>

diff --git a/compact/far_backward/lumi/spec_tracker.xml b/compact/far_backward/lumi/spec_tracker.xml
@@ -28,6 +28,7 @@
     materialCu="Copper"
     thicknessSi="LumiSpecTracker_Si_DZ/2.0"
     thicknessCu="LumiSpecTracker_Cu_DZ/2.0">
+    <type_flags type="DetType_TRACKER + DetType_ENDCAP"/>
     <module id="0">
         <sector id="0" name="Top1">
           <position   x="0" y="Pos_Y1" z="Pos_Z1"/>

diff --git a/compact/far_backward/taggers.xml b/compact/far_backward/taggers.xml
@@ -12,6 +12,7 @@
   <detectors>
 
     <detector id="TaggerTracker_ID" name="BackwardsTaggerStation" type="BackwardsTagger" readout="TaggerTrackerHits">
+      <type_flags type="DetType_TRACKER + DetType_ENDCAP"/>
 
       <comment> Tagger stations </comment>
       <module id="1" name="Tagger1">

diff --git a/compact/far_forward/B0_ECal.xml b/compact/far_forward/B0_ECal.xml
@@ -28,6 +28,7 @@
         name="B0ECal"
         type="B0_ECAL"
         readout="B0ECalHits">
+      <type_flags type="DetType_CALORIMETER + DetType_ENDCAP + DetType_ELECTROMAGNETIC"/>
       <position x="B0ECal_xcenter" y="0" z="B0ECal_zcenter"/>
       <rotation x="0" y="180*deg+B0ECal_rotation" z="0"/>
       <placements>

diff --git a/compact/far_forward/B0_preshower.xml b/compact/far_forward/B0_preshower.xml
@@ -47,6 +47,7 @@
       readout="B0PreshowerHits"
       vis="FFPreVis"
       reflect="false">
+      <type_flags type="DetType_CALORIMETER + DetType_ENDCAP + DetType_ELECTROMAGNETIC"/>
       <position x="B0PreshowerCenter_xpos" y="0" z="B0PreshowerCenter_zpos"/>
       <rotation x="0*rad" y="B0Preshower_rotation" z="0*rad"/>
       <module name="Module1" vis="FFPreModuleVis">

diff --git a/compact/far_forward/ZDC_1stSilicon.xml b/compact/far_forward/ZDC_1stSilicon.xml
@@ -22,6 +22,7 @@
         type="ZDC_ImagingCal"
         vis="ZDC_SiliconPix_Vis"
         readout="ZDC_SiliconPix_Hits">
+      <type_flags type="DetType_TRACKER + DetType_ENDCAP"/>
       <position x="ZDC_1stSilicon_x_pos"         y="ZDC_1stSilicon_y_pos"         z="ZDC_1stSilicon_z_pos"/>
       <rotation x="ZDC_1stSilicon_rotateX_angle" y="ZDC_1stSilicon_rotateY_angle" z="ZDC_1stSilicon_rotateZ_angle"/>
       <dimensions x="ZDC_1stSilicon_x" y="ZDC_1stSilicon_y" z="ZDC_1stSilicon_z"/>

diff --git a/compact/far_forward/ZDC_Crystal.xml b/compact/far_forward/ZDC_Crystal.xml
@@ -29,6 +29,7 @@
         type="ZDC_Crystal"
         vis="ZDC_Crystal_Vis"
         readout="ZDCEcalHits">
+      <type_flags type="DetType_CALORIMETER + DetType_ENDCAP + DetType_ELECTROMAGNETIC"/>
       <position x="ZDC_Crystal_x_pos"         y="ZDC_Crystal_y_pos"         z="ZDC_Crystal_z_pos"/>
       <rotation x="ZDC_Crystal_rotateX_angle" y="ZDC_Crystal_rotateY_angle" z="ZDC_Crystal_rotateZ_angle"/>
       <dimensions x="ZDC_Crystal_nx * (ZDC_Crystal_cell_width + ZDC_Crystal_frame_thickness) + ZDC_Crystal_frame_thickness"

diff --git a/compact/far_forward/ZDC_Crystal_LYSO.xml b/compact/far_forward/ZDC_Crystal_LYSO.xml
@@ -42,6 +42,7 @@
         type="ZDC_Crystal"
         vis="ZDC_Crystal_Vis"
         readout="EcalFarForwardZDCHits">
+      <type_flags type="DetType_CALORIMETER + DetType_ENDCAP + DetType_ELECTROMAGNETIC"/>
       <position x="ZDC_Crystal_x_pos"         y="ZDC_Crystal_y_pos"         z="ZDC_Crystal_z_pos"/>
       <rotation x="ZDC_Crystal_rotateX_angle" y="ZDC_Crystal_rotateY_angle" z="ZDC_Crystal_rotateZ_angle"/>
       <dimensions x="ZDC_Crystal_nx * (ZDC_Crystal_cell_width + ZDC_Crystal_frame_thickness) + ZDC_Crystal_frame_thickness"

diff --git a/compact/far_forward/ZDC_Ecal.xml b/compact/far_forward/ZDC_Ecal.xml
@@ -10,6 +10,7 @@
   </comment>
 
   <detectors>
+    <type_flags type="DetType_CALORIMETER + DetType_ENDCAP + DetType_ELECTROMAGNETIC"/>
     <detector id="ZDCEcal_ID" name="ZDCEcal" type="ZDC_Sampling" readout="ZDCEcal_Hits" vis="ZDCEcal_Vis">
       <position x="ZDCEcal_x_pos" y="ZDCEcal_y_pos" z="ZDCEcal_z_pos"/>
       <rotation x="ZDCEcal_rotateX_angle" y="ZDCEcal_rotateY_angle" z="ZDCEcal_rotateZ_angle"/>

diff --git a/compact/far_forward/ZDC_Ecal_WSciFi.xml b/compact/far_forward/ZDC_Ecal_WSciFi.xml
@@ -22,6 +22,7 @@
       type="ZDCEcalScFiCalorimeter"
       vis="ZDC_Ecal_Vis"
       readout="ZDCEcalHits">
+      <type_flags type="DetType_CALORIMETER + DetType_ENDCAP + DetType_ELECTROMAGNETIC"/>
       <position x="ZDCEcal_x_pos" y="ZDCEcal_y_pos" z="ZDCEcal_z_pos"/>
       <rotation x="ZDCEcal_rotateX_angle" y="ZDCEcal_rotateY_angle" z="ZDCEcal_rotateZ_angle"/>
       <dimensions x="ZDCEcal_width" z="ZDCEcal_length"/>

diff --git a/compact/far_forward/ZDC_Hcal.xml b/compact/far_forward/ZDC_Hcal.xml
@@ -10,6 +10,7 @@
   </comment>
 
   <detectors>
+    <type_flags type="DetType_CALORIMETER + DetType_ENDCAP + DetType_HADRONIC"/>
     <detector id="ZDCHcal_ID" name="ZDCHcal" type="ZDC_Sampling" readout="ZDCHcalHits" vis="ZDC_Hcal_Vis">
       <position x="ZDCHcal_x_pos" y="ZDCHcal_y_pos" z="ZDCHcal_z_pos"/>
       <rotation x="ZDCHcal_rotateX_angle" y="ZDCHcal_rotateY_angle" z="ZDCHcal_rotateZ_angle"/>

diff --git a/compact/far_forward/ZDC_PbScinti.xml b/compact/far_forward/ZDC_PbScinti.xml
@@ -24,6 +24,7 @@
         type="ZDC_SamplingCal"
         vis="ZDC_PbSci_Vis"
         readout="ZDCHcalHits">
+      <type_flags type="DetType_CALORIMETER + DetType_ENDCAP + DetType_HADRONIC"/>
       <position x="ZDC_PbSci_x_pos"         y="ZDC_PbSci_y_pos"         z="ZDC_PbSci_z_pos"/>
       <rotation x="ZDC_PbSci_rotateX_angle" y="ZDC_PbSci_rotateY_angle" z="ZDC_PbSci_rotateZ_angle"/>
       <dimensions x="ZDC_PbSci_x" y="ZDC_PbSci_y" z="ZDC_PbSci_z"/>

diff --git a/compact/far_forward/ZDC_PbSi.xml b/compact/far_forward/ZDC_PbSi.xml
@@ -24,6 +24,7 @@
         type="ZDC_ImagingCal"
         vis="ZDC_PbSi_Vis"
         readout="ZDC_PbSi_Hits">
+      <type_flags type="DetType_CALORIMETER + DetType_ENDCAP + DetType_HADRONIC"/>
       <position x="ZDC_PbSi_x_pos"         y="ZDC_PbSi_y_pos"         z="ZDC_PbSi_z_pos"/>
       <rotation x="ZDC_PbSi_rotateX_angle" y="ZDC_PbSi_rotateY_angle" z="ZDC_PbSi_rotateZ_angle"/>
       <dimensions x="ZDC_PbSi_x" y="ZDC_PbSi_y" z="ZDC_PbSi_z"/>

diff --git a/compact/far_forward/ZDC_SiPMonTile.xml b/compact/far_forward/ZDC_SiPMonTile.xml
@@ -76,6 +76,7 @@
       readout="HcalFarForwardZDCHits"
       vis="InvisibleWithDaughters"
     >
+      <type_flags type="DetType_CALORIMETER + DetType_ENDCAP + DetType_HADRONIC"/>
       <position x="HcalFarForwardZDC_SiPMonTile_x_pos"         y="HcalFarForwardZDC_SiPMonTile_y_pos"         z="HcalFarForwardZDC_SiPMonTile_z_pos"/>
       <rotation x="HcalFarForwardZDC_SiPMonTile_rotateX_angle" y="HcalFarForwardZDC_SiPMonTile_rotateY_angle" z="HcalFarForwardZDC_SiPMonTile_rotateZ_angle"/>
       <dimensions

diff --git a/compact/far_forward/ZDC_WSi.xml b/compact/far_forward/ZDC_WSi.xml
@@ -29,6 +29,7 @@
         type="ZDC_ImagingCal"
         vis="ZDC_WSi_Vis"
         readout="ZDC_WSi_Hits">
+      <type_flags type="DetType_CALORIMETER + DetType_ENDCAP + DetType_ELECTROMAGNETIC"/>
       <position x="ZDC_WSi_x_pos"         y="ZDC_WSi_y_pos"         z="ZDC_WSi_z_pos"/>
       <rotation x="ZDC_WSi_rotateX_angle" y="ZDC_WSi_rotateY_angle" z="ZDC_WSi_rotateZ_angle"/>
       <dimensions x="ZDC_WSi_x" y="ZDC_WSi_y" z="ZDC_WSi_z"/>

diff --git a/compact/far_forward/beam_orbit_tracker.xml b/compact/far_forward/beam_orbit_tracker.xml
@@ -20,6 +20,7 @@
       insideTrackingVolume="true"
       reflect="false"
       vis="RedVis">
+      <type_flags type="DetType_TRACKER + DetType_ENDCAP"/>
       <position x="-217.98*mm" y="0" z="8498.952*mm"/> <!-- end of B0apf + 1mm -->
       <rotation x="0*rad" y="-25.0*0.001*rad" z="0*rad"/>
       <module name="Module1" vis="AnlProcess_Blue">
@@ -41,6 +42,7 @@
       insideTrackingVolume="true"
       reflect="false"
       vis="RedVis">
+      <type_flags type="DetType_TRACKER + DetType_ENDCAP"/>
       <position x="-631.65*mm" y="0" z="22062.85*mm"/> <!-- end of B1apf + 1mm -->
       <rotation x="0*rad" y="-25.0*0.001*rad" z="0*rad"/>
       <module name="Module1" vis="AnlProcess_Blue">

diff --git a/compact/far_forward/beampipe_hadron_B0.xml b/compact/far_forward/beampipe_hadron_B0.xml
@@ -11,6 +11,7 @@
   <detectors>
 
     <detector id="BeamPipeB0_ID" name="BeamPipeB0" type="forwardBeamPipeBrazil" vis="BeamPipeVis">
+      <type_flags type="DetType_ENDCAP + DetType_BEAMPIPE"/>
       <position x="-0.165*m" y="0*m" z="B0PF_CenterPosition" />
       <rotation x="0*rad" y="0*rad" z="0*rad" />
     </detector>

diff --git a/compact/far_forward/electron_beamline.xml b/compact/far_forward/electron_beamline.xml
@@ -51,6 +51,7 @@
       type="BeamPipeChain"
       wall_thickness="Beampipe_cen_pos_Thickness">
 
+      <type_flags type="DetType_ENDCAP + DetType_BEAMPIPE"/>
       <pipe id="0" name="Pipe_FWD_electron"
         xcenter="0" zcenter="(Beampipe_fwd_pos_EndZ+Beampipe_cen_pos_EndZ)/2."
         length="Beampipe_fwd_pos_EndZ-Beampipe_cen_pos_EndZ" theta="0"

diff --git a/compact/far_forward/offM_tracker.xml b/compact/far_forward/offM_tracker.xml
@@ -105,6 +105,7 @@
       readout="ForwardOffMTrackerHits"
       vis="FFTrackerVis"
       reflect="false">
+      <type_flags type="DetType_TRACKER + DetType_ENDCAP"/>
       <position x="-1032.0*mm" y="0" z="27020*mm"/>
       <rotation x="0*rad" y="-0.047*rad" z="0*rad"/>
       <module name="OMD4Mod1" vis="FFTrackerShieldedModuleVis">

diff --git a/compact/far_forward/roman_pots_eRD24_design.xml b/compact/far_forward/roman_pots_eRD24_design.xml
@@ -74,6 +74,7 @@
                 type="ip6_ForwardRomanPot"
                 insideTrackingVolume="true"
                 reflect="false" vis="FFTrackerVis">
+            <type_flags type="DetType_TRACKER + DetType_ENDCAP"/>
             <position x="ForwardRomanPotStation1_xpos" y="0" z="ForwardRomanPotStation1_zpos" />
             <rotation x="0" y="ForwardRomanPotStation1_rotation" z="0" />
             <module name="ModuleRP1" vis="FFTrackerShieldedModuleVis" nx="1" ny="1" width="ForwardRomanPot_ModuleWidth" height="ForwardRomanPot_ModuleHeight">
@@ -161,6 +162,7 @@
                 insideTrackingVolume="true"
                 reflect="false"
                 vis="FFTrackerVis">
+            <type_flags type="DetType_TRACKER + DetType_ENDCAP"/>
             <position x="ForwardRomanPotStation2_xpos" y="0" z="ForwardRomanPotStation2_zpos" />
             <rotation x="0" y="ForwardRomanPotStation1_rotation" z="0" />
             <module name="ModuleRP2" vis="FFTrackerShieldedModuleVis" nx="1" ny="1" width="ForwardRomanPot_ModuleWidth" height="ForwardRomanPot_ModuleHeight">

diff --git a/compact/hcal/backward_template.xml b/compact/hcal/backward_template.xml
@@ -35,6 +35,7 @@
       calorimeterType="HAD_ENDCAP"
       allSensitive="HcalEndcapN_allSensitive"
       >
+      <type_flags type="DetType_CALORIMETER + DetType_ENDCAP + DetType_HADRONIC"/>
       <position x="0" y="0" z="0"/>
       <dimensions
         numsides="HcalEndcapN_CaloSides"

diff --git a/compact/hcal/barrel_gdml.xml b/compact/hcal/barrel_gdml.xml
@@ -22,6 +22,7 @@
           z1="HcalBarrel_length1"
           z2="HcalBarrel_length2"
           calorimeterType="HAD_BARREL">
+        <type_flags type="DetType_CALORIMETER + DetType_BARREL + DetType_HADRONIC"/>
         <sec_gdmlfile file="gdml/barrel_hcal_steel_sector_nocombs.gdml" url="https://github.com/eic/epic-data/raw/c1ef9dca1781047fe9485eec6c0f986ec7d27f41/barrel_HCAL_gdml/barrel_hcal_steel_sector_nocombs.gdml" cache="$DETECTOR_PATH:/opt/detector" material="Steel1020"/>
         <csec_gdmlfile file="gdml/barrel_hcal_steel_chimneysector_nocombs.gdml" url="https://github.com/eic/epic-data/raw/c1ef9dca1781047fe9485eec6c0f986ec7d27f41/barrel_HCAL_gdml/barrel_hcal_steel_chimneysector_nocombs.gdml" cache="$DETECTOR_PATH:/opt/detector" material="Steel1020"/>
         <er_gdmlfile file="gdml/barrel_hcal_steel_endring.gdml" url="https://github.com/eic/epic-data/raw/c1ef9dca1781047fe9485eec6c0f986ec7d27f41/barrel_HCAL_gdml/barrel_hcal_steel_endring.gdml" cache="$DETECTOR_PATH:/opt/detector" material="Steel1020"/>

diff --git a/compact/hcal/lfhcal.xml b/compact/hcal/lfhcal.xml
@@ -90,6 +90,7 @@
       renderComponents="0"
       allSensitive="0"
       >
+      <type_flags type="DetType_CALORIMETER + DetType_ENDCAP + DetType_HADRONIC"/>
 
       <position x="0" y="0" z="LFHCAL_zmin"/>
       <dimensions

diff --git a/compact/pid/dirc.xml b/compact/pid/dirc.xml
@@ -96,6 +96,7 @@
 
   <detectors>
     <detector id="BarrelDIRC_ID" name="cb_DIRC" type="epic_DIRC" readout="DIRCBarHits" vis="DIRCTube">
+      <type_flag type="DetType_CHERENKOV + DetType_Barrel"/>
       <dimensions rmin="DIRCBar_center - DIRCBar_height/2" rmax="DIRCBar_center + DIRCBar_height/2" length="DIRC_length"/>
       <position x="0" y="0" z="DIRC_offset"/>
       <module name="DIRCBox" repeat="DIRCBox_count" width="DIRCPrism_width + 1*mm" height="DIRCPrism_height*2" length="DIRCBarAssm_length + 550*mm" vis="DIRCBox">

diff --git a/compact/pid/drich.xml b/compact/pid/drich.xml
@@ -76,7 +76,7 @@
   vis_vessel="DRICH_vessel_vis"
   vis_gas="DRICH_gas_vis"
   >
-
+  <type_flags type="DetType_CHERENKOV + DetType_ENDCAP"/>
 
 <!-- /detectors/detector/dimensions -->
 <documentation level="10">

diff --git a/compact/pid/pfrich.xml b/compact/pid/pfrich.xml
@@ -103,6 +103,7 @@
   vis_vessel="PFRICH_vessel_vis"
   vis_gas="DRICH_gas_vis"
   >
+  <type_flags type="DetType_CHERENKOV + DetType_ENDCAP"/>
 
     <parent name="/world_volume"/>
 

diff --git a/src/B0ECal_geo.cpp b/src/B0ECal_geo.cpp
@@ -11,6 +11,7 @@
 #include "DDRec/Surface.h"
 #include "Math/Point2D.h"
 #include <XML/Helper.h>
+#include <XML/Utilities.h>
 
 //////////////////////////////////////////////////
 // Far Forward B0 Electromagnetic Calorimeter
@@ -36,6 +37,9 @@ static Ref_t createDetector(Detector& desc, xml_h e, SensitiveDetector sens) {
   DetElement det(detName, detID);
   sens.setType("calorimeter");
 
+  // apply any detector type flags set in XML
+  dd4hep::xml::setDetectorTypeFlag(x_det, det);
+
   // assembly
   Assembly detVol(detName);
 

diff --git a/src/B0Preshower_geo.cpp b/src/B0Preshower_geo.cpp
@@ -2,6 +2,7 @@
 // Copyright (C) 2022 Whitney Armstrong
 
 #include "DD4hep/DetFactoryHelper.h"
+#include "XML/Utilities.h"
 #include <map>
 
 using namespace std;
@@ -26,6 +27,9 @@ static Ref_t create_B0Preshower(Detector& description, xml_h e, SensitiveDetecto
   xml::Component pos = x_det.position();
   xml::Component rot = x_det.rotation();
 
+  // apply any detector type flags set in XML
+  dd4hep::xml::setDetectorTypeFlag(x_det, sdet);
+
   // Material  air  = description.material("Air");
   //  Volume      assembly    (det_name,Box(10000,10000,10000),vacuum);
   Volume motherVol = description.pickMotherVolume(sdet);
@@ -151,6 +155,7 @@ static Ref_t create_B0Preshower(Detector& description, xml_h e, SensitiveDetecto
     }
     DetElement layer_element(sdet, layer_name, l_id);
     layer_element.setPlacement(layer_pv);
+    layer_element.setTypeFlag(sdet.typeFlag()); // make sure type flags are propagated
 
     for (xml_coll_t ri(x_layer, _U(ring)); ri; ++ri) {
       xml_comp_t x_ring    = ri;
@@ -177,21 +182,25 @@ static Ref_t create_B0Preshower(Detector& description, xml_h e, SensitiveDetecto
                                                         Position(x, y, zstart + dz)));
           pv.addPhysVolID("barrel", 1).addPhysVolID("layer", l_id).addPhysVolID("module", mod_num);
           module.setPlacement(pv);
+          module.setTypeFlag(sdet.typeFlag());
           for (size_t ic = 0; ic < sensVols.size(); ++ic) {
             PlacedVolume sens_pv = sensVols[ic];
             DetElement comp_elt(module, sens_pv.volume().name(), mod_num);
             comp_elt.setPlacement(sens_pv);
+            comp_elt.setTypeFlag(sdet.typeFlag());
           }
         } else {
           pv = layer_vol.placeVolume(m_vol, Transform3D(RotationZYX(0, -M_PI / 2 - phi, -M_PI / 2),
                                                         Position(x, y, -zstart - dz)));
           pv.addPhysVolID("barrel", 2).addPhysVolID("layer", l_id).addPhysVolID("module", mod_num);
           DetElement r_module(layer_element, m_base + "_neg", det_id);
           r_module.setPlacement(pv);
+          r_module.setTypeFlag(sdet.typeFlag()); // make sure type flags are propagated
           for (size_t ic = 0; ic < sensVols.size(); ++ic) {
             PlacedVolume sens_pv = sensVols[ic];
             DetElement comp_elt(r_module, sens_pv.volume().name(), mod_num);
             comp_elt.setPlacement(sens_pv);
+            comp_elt.setTypeFlag(sdet.typeFlag());
           }
         }
         dz = -dz;

diff --git a/src/B0Tracker_geo.cpp b/src/B0Tracker_geo.cpp
@@ -182,6 +182,7 @@ static Ref_t create_B0Tracker(Detector& description, xml_h e, SensitiveDetector
     layer_name += "_P";
     DetElement layer_element(sdet, layer_name, l_id);
     layer_element.setPlacement(layer_pv);
+    layer_element.setTypeFlag(sdet.typeFlag()); // make sure type flags are propagated
 
     auto& layerParams =
         DD4hepDetectorHelper::ensureExtension<dd4hep::rec::VariantParameters>(layer_element);
@@ -207,6 +208,7 @@ static Ref_t create_B0Tracker(Detector& description, xml_h e, SensitiveDetector
 
         // if (!reflect) {
         DetElement module(layer_element, m_base + "_pos", det_id);
+        module.setTypeFlag(sdet.typeFlag()); // make sure type flags are propagated
         pv = layer_vol.placeVolume(m_vol, Transform3D(RotationZYX(0, -M_PI / 2 - phi, -M_PI / 2),
                                                       Position(x, y, zstart + dz)));
         pv.addPhysVolID("layer", l_id).addPhysVolID("module", mod_num);
@@ -215,6 +217,7 @@ static Ref_t create_B0Tracker(Detector& description, xml_h e, SensitiveDetector
           PlacedVolume sens_pv = sensVols[ic];
           DetElement comp_elt(module, sens_pv.volume().name(), mod_num);
           comp_elt.setPlacement(sens_pv);
+          comp_elt.setTypeFlag(sdet.typeFlag()); // make sure type flags are propagated
           auto& comp_elt_params =
               DD4hepDetectorHelper::ensureExtension<dd4hep::rec::VariantParameters>(comp_elt);
           comp_elt_params.set<std::string>("axis_definitions", "XZY");