CONFIGURATION OVERVIEW

Overview of Configurations (June 2021)

• Location: IP6, IP8

• Configuration: 1.5T (ECCE), 2.0T (CORE), 3T (ATHENA)

• Location of EEEMCAL: inside or outside DIRC

Mechanical aspects

• Maintenance

• Detector maintenance will be done outside the hall using the mechanism illustrated in these videos:

• Link to IP6
• Link to IP8

• How many parts of the detector?

• One part EEEMCal (Athena and ECCE)

• Must we take out the detector?

• All major maintenance will be performed outside the hall

• Where will the detector be mounted?

• On the universal ("DIRC") frame for both Athena and ECCE

• What is keeping the crystals/glass blocks in place?

• Carbon structure between crystals (individual or matrix) - need to know what minimum thickness is required mechanically.

• Where is the detector located?

• Inside DIRC for both Athena and ECCE
• Detector location in z: z=195cm (Athena), z=190cm (ECCE)
• Detector dimensions:

• Athena: Rmin=15cm, Rmax=100cm
• ECCE: Rmin=11cm, Rmax=57cm (support radius=61cm)

• Cooling:

• Need to have as much active area (crystal/glass) as possible to minimize gaps in physics coverage
• Prefer a cooling solution from back and "inside" to minimize any structure outside the crystal/glass block outer radius