Hall D Civil and Detector Hall D Civil and Detector ProgressProgress

Elliott WolinElliott Wolin12-Sep-200212-Sep-2002U. Of ReginaU. Of Regina

Middle of NowhereMiddle of NowhereCanadaCanada

OutlineOutline

1. Civil Design Updatea. Construction timelineb. Where we are nowc. To dod. Review changes, drawings

2. Detector Integration/Accessa. Overall strategyb. Ravi’s work on upstream platform, etc.

3. Summary and Conclusions

1. Civil – Construction Timeline1. 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 Now1. 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 Do1. 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 - Changes1. 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 – 2. Detector Integration/Access – Overall StrategyOverall 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 Work2. 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

CDC Fiber Glass Cylinders with the rails Barrel Calorimeter

Rails Attached to the Fiber glass

/scratch/ravi/ideas/solenoid.mf1RESULTS: 3- B.C. 1,STRESS_3,LOAD SET 1STRESS - VON MISES MIN: 1.11E+01 MAX: 6.61E+03DEFORMATION: 1- B.C. 1,DISPLACEMENT_1,LOAD SET 1DISPLACEMENT - MAG MIN: 0.00E+00 MAX: 2.02E-03 VALUE OPTION:ACTUALFRAME OF REF: PART SHELL SURFACE: TOP

1.11D+01

6.71D+02

1.33D+03

1.99D+03

2.65D+03

3.31D+03

3.97D+03

4.63D+03

5.29D+03

5.95D+03

6.61D+0343750 lbf

52 °

Yield Stress : 50000 psi

1030 Hot rolled Steel

TARGET VTX CDC FDC

CRENKOV Pb-GLASS DET

12

.00

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 Conclusions3. 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