NEW SW GEOMETRY UPDATES

ATLAS muon team, together with technical coordination group and GCCEC agreed procedure for new Small Wheel (SW) geometry updates in simulation software packages. According to procedure GCCEC have to extract SW CATIA assemblies from CERN engineering database and prepare corresponding XML descriptions for simulation. GCCEC handled EIL support/inner_circle assembly, one among 4 assemblies – got 3D model from Smarteam to CATIA; calculate total volume and mass; simplified geometry keeping calculated volume and mass; generate XML; downloaded AMDB_simrec.r.06.01 and add XML description in new lines. Then prepared volume was checked on integrity with other volumes from AMDB_simrec.r.06.01. Overlap with JD disk has been found and documented in technical report. GCCEC received positive feedback from muon and simulation teams.