use cylinder volumes based tracking region in arc explicitly

key4hep · Dec 16, 2024 · 808c198 · 808c198
1 parent f7fd320
commit 808c198
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/CLDConfig/cld_arc_steer.py b/CLDConfig/cld_arc_steer.py
@@ -64,3 +64,6 @@ def setupCerenkov(kernel):
         )
 SIM.filter.mapDetFilter["ARCBARREL"] = "opticalphotons"
 SIM.filter.mapDetFilter["ARCENDCAP"] = "opticalphotons"
+
+# explicitly use the cylinder volume base particle handler
+SIM.part.userParticleHandler = "Geant4TCUserParticleHandler"