Fix Cavern Mismatch

ShipSoft · Feb 12, 2025 · 37d8ea1 · 37d8ea1
1 parent 847f0b2
commit 37d8ea1
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -38,7 +38,7 @@ it in future.
 * Genfit measurements now give the correct detector ID
 * Fix TEvePointSetPrintOut
 * Event Display: Fix drawing of MC and Geo tracks
-
+* Fix mismatch dimension cavern ECN3 TCC8 
 ### Changed
 * Changed the dimension of the cave (ref. https://indico.cern.ch/event/1507466/contributions/6345273/attachments/3003438/5293503/Quick%20Update%20on%20FAIRSHIP%20geometry-1.pdf):
 	1) Updated dimensions of TCC8 and ECN3.

diff --git a/passive/ShipMuonShield.cxx b/passive/ShipMuonShield.cxx
@@ -857,7 +857,7 @@ void ShipMuonShield::ConstructGeometry()
       auto *stair_step_shift = new TGeoTranslation("stair_step_shift", 3.435 * m, 3.04 * m , stair_step_length / 2.);
       stair_step_shift->RegisterYourself();
       auto *experiment_cavern = new TGeoBBox("experiment_cavern", 7.995 * m, 6 * m, ECN3_length / 2. - stair_step_length / 2.);
-      auto *ECN3_shift = new TGeoTranslation("ECN3_shift", 3.435 * m, 2.64 * m, ECN3_length / 2. + stair_step_length);
+      auto *ECN3_shift = new TGeoTranslation("ECN3_shift", 3.435 * m, 2.64 * m, ECN3_length / 2. + stair_step_length / 2.);
       ECN3_shift->RegisterYourself();
 
       auto *yoke_pit = new TGeoBBox("yoke_pit", 3.5 * m, 4.3 * m + 1 * cm, 2.5 * m);