From b43d602e03a99bfbe61bbd4ae0462efc8c60f878 Mon Sep 17 00:00:00 2001 From: Pavel Larionov Date: Tue, 17 Mar 2026 18:38:09 +0100 Subject: [PATCH] Fix overlap IRIS vacuum --- .../Upgrades/ALICE3/TRK/simulation/src/VDGeometryBuilder.cxx | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Detectors/Upgrades/ALICE3/TRK/simulation/src/VDGeometryBuilder.cxx b/Detectors/Upgrades/ALICE3/TRK/simulation/src/VDGeometryBuilder.cxx index 48cd0f37d2eb5..2f1a83f73bca3 100644 --- a/Detectors/Upgrades/ALICE3/TRK/simulation/src/VDGeometryBuilder.cxx +++ b/Detectors/Upgrades/ALICE3/TRK/simulation/src/VDGeometryBuilder.cxx @@ -608,8 +608,8 @@ static void addIRISServiceModulesSegmented(TGeoVolume* petalAsm, int nPetals) // --- Vacuum vessel window around z∈[-L/2, +L/2] with wall thickness on +Z side // Keep these in sync with TRKServices::createVacuumCompositeShape() - constexpr double vacuumVesselLength = kPetalZ_cm; // cm - constexpr double vacuumVesselThickness = kWallThick_cm; // cm (0.2 mm) + constexpr double vacuumVesselLength = 76.0; // cm + constexpr double vacuumVesselThickness = 0.08; // cm (0.8 mm) const double halfVess = 0.5 * vacuumVesselLength; // 38.0 cm const double gapStart = halfVess; // 38.00 const double gapEnd = halfVess + vacuumVesselThickness; // 38.08