Hall D Civil and Detector Progress Elliott Wolin 12-Sep-2002 U. Of Regina Middle of Nowhere Canada

Outline 1.Civil Design Update a.Construction timeline b.Where we are now c.To do d.Review changes, drawings 2.Detector Integration/Access a.Overall strategy b.Ravi’s work on upstream platform, etc. 3.Summary and Conclusions

1. Civil – Construction Timeline Steps: 1. Conceptual/block design – us, “free” 2. Construction drawings - A&E firm, ~$100K 3. Pour concrete - construction firm, ~$10M Note: Cost of changes increases rapidly from step to step

1. Civil – Where We Are Now We considered: –Hall D, Counting House, Accelerator buildings –Radiation and personnel safety –Truck and crane access –Soil composition and loadings –Optimal building height w/r/to existing grade – Cryo access, staging areas, etc. We are almost ready to go to A&E firm!

1. Civil – To Do Counting house design –Counting room, meeting room, kitchen area –Offices? Lab/shop space? Lounge? 2 floors? Building and tunnel access, doors, etc. Building grounding design Please check all building dimensions!

1. Civil - Changes -Building elevation compromise, ~1m below grade -Pilings not needed -Closer to accelerator, farther from Canon Blvd -Grade confusion resolved -Moved cryo shed to open up staging area -Thin steel roof and upper walls -Variable outside concrete wall thickness -Lowered crane hook and roof heights -Thin truck door + radiation fence -More shielding in collimator bldg, etc.

2. Detector Integration/Access – Overall Strategy No more than 1 shift to access detectors Minimize cable runs, crates move Only fiber into counting house, no copper Use of rail systems, tie packages together Split tracking into up- and downstream packages BCAL will not move

2. Detector – Ravi’s Work Detector images Upstream platform

HALL D DETECTOR IMAGES -: Ravi Anumagalla

Solenoid Assembly

Coils Iron Yokes FDC Barrel Calorimeter CDC Vertex Detector Target

Iron Yoke Assembly

Coil Assembly

Plate Assembly

Support Mechanism Assembly`

Inner parts Assembly

Hall D Building

Cerenkoc Detector

Lead Glass Detector

VETO

CDC enclosed in the Fiber Glass cylinder Fiber Glass cylinder enclosed in the Barrel Calorimeter

The CDC enclosed in the Fiber Glass Cylinder is inserted into the Barrel Calorimeter supported by the rails CDC Barrel Calorimeter

CDCFiber Glass Cylinders with the railsBarrel Calorimeter Rails Attached to the Fiber glass

43750 lbf 52 ° Yield Stress : psi 1030 Hot rolled Steel

TARGETVTXCDCFDC CRENKOVPb-GLASS DET Exploded View of The Detector All Dimension in Meters The components are extracted by “4 ft” from each o other to facilitate future maintenance The detector requires a “platform” to support the ex t extracted components

Detector Platform Top View of the HALL PLATFORM The Platform is 8 ft from the base Supports the extracted components Assists in assembling the parts All Dimensions in Meters

COIL 2

3. Summary and Conclusions Time to begin hiring A&E firm –Some design work still needed –Check design carefully Cost of changes increases rapidly from now on! Preliminary detector integration strategy Think about detector access