Support girder design for the atlas hadron calorimeter
The girder is the primary structural element of the Hadron Calorimeter. It provides the backbone of the Tile-Cal module and the basic construction reference for the assembly of the module. The girder also forms the outer radius support ring, when the individual modules are assembled into the barrel and the extended barrel assemblies. The girder also serves as the primary flux return path for the solenoidal coil, and as a magnetic shield around the photomultiplier tubes and the electronics to prevent their being affected by stray fields created by the muon toroid. It should be noted that the amount of steel in the girder is dominated by the flux return requirement, and not by the structural requirement. The orientation of the individual components of the girder are demanded by the need to contain the PMT and electronics drawer which resides inside the box structure.
- Research Organization:
- Argonne National Lab., IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 10106869
- Report Number(s):
- ANL-HEP-TR--94-87; ON: DE95004638
- Country of Publication:
- United States
- Language:
- English
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