Detector Parameters Update: Lepton Endcap HCal about epic

[lkosarz]

I made the updates, but we may need to verify if the inner part doesn't overlap with any of the beampipes

LEPTON DIRECTION ENDCAP, Backward HCal, :
det sim template_var stat
Length (cm) 45.0 45.0 45.0 Correct
Inner Radius (cm) 12.4 12.4 12.4 Correct
Outer Radius (cm) 267.0 267.0 267.0 Correct
Offset from Center (cm) -395.0 -395.0 -395.0 Correct
Physical Start (cm) -440.0 -440.0 -440.0 Correct
Physical End (cm) -395.0 -395.0 -395.0 Correct

[lkosarz]

There are overlaps, but the local coordinates don't tell me much, are they local to the beampipe?

2023-10-21T03:08:34.1340740Z           Overlap is detected for volume AV_10875!BeamPipe_assembly_26#26!v_upstream_matter_9#9:36 (G4SubtractionSolid) with AV_10874!HcalEndcapN_25#25!endcap_0#0:26 (G4Polyhedra)
2023-10-21T03:08:34.1342864Z           overlap at local point (-133.331,12.2908,-132.926) by 9.7918 mm  (max of 17 cases)
2023-10-21T03:08:34.1344217Z NOTE: Reached maximum fixed number -1- of overlaps reports for this volume !
2023-10-21T03:08:34.1345185Z *** This is just a warning message. ***
2023-10-21T03:08:34.1346044Z -------- WWWW -------- G4Exception-END --------- WWWW -------
2023-10-21T03:08:34.1346660Z 
2023-10-21T03:08:34.1386417Z 
2023-10-21T03:08:34.1387187Z -------- WWWW ------- G4Exception-START -------- WWWW -------
2023-10-21T03:08:34.1387932Z *** G4Exception : GeomVol1002
2023-10-21T03:08:34.1388565Z       issued by : G4PVPlacement::CheckOverlaps()
2023-10-21T03:08:34.1389203Z Overlap with volume already placed !
2023-10-21T03:08:34.1390579Z           Overlap is detected for volume AV_10875!BeamPipe_assembly_26#26!v_upstream_vacuum_10#10:37 (G4UnionSolid) with AV_10874!HcalEndcapN_25#25!endcap_0#0:26 (G4Polyhedra)
2023-10-21T03:08:34.1392332Z           overlap at local point (-132.272,8.16977,-141.989) by 8.51785 mm  (max of 43 cases)
2023-10-21T03:08:34.1393518Z NOTE: Reached maximum fixed number -1- of overlaps reports for this volume !

[lkosarz]

I can say that we have inner radius of 14cm implemented in our work in progress version. I will put that value in for now and communicate with Tanya.

[lkosarz]

Oh wait, which Tanya should I contact? Did you mean Tanja Horn?

[Chao1009]

Yes, you can contact her through this page https://eic.jlab.org/Geometry/