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A first look at DUNE SP TPC Installation & Schedule with Cold Boxes Underground

A first look at DUNE SP TPC Installation & Schedule with Cold Boxes Underground. Diamanto Smargianaki William Miller October 10 th , 2018v5. Det#3. Det#1. Det#4. Det#2. SP Installation Assumptions-New Layout.

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A first look at DUNE SP TPC Installation & Schedule with Cold Boxes Underground

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  1. A first look at DUNE SP TPC Installation & SchedulewithCold Boxes Underground Diamanto Smargianaki William Miller October 10th, 2018v5 Det#3 Det#1 Det#4 Det#2 New TPC Installation Concept

  2. SP Installation Assumptions-New Layout • APA pair comes from ITF with Photon Detectors and Cold Electronics installed and tested in an APA shipping frame • To maintain class 100,000 cleanroom and SAS requirements the APAs are individually bagged in the ITF. • Minimum of three 14m tall cold boxes with hinged doors-Cold cycle time 3 days • Covered Top/Bottom APAs are mounted to APA Assembly frame in SAS and joined after SAS roof is back on and SAS is clean. • SAS is wide enough that PDs can be tested and replaced before it goes into the clean room. • Rail System switch yard is designed so it can move both APA pairs, CPA/FC and a small electric hoist used for CPA assembly • Same two 10 hour shifts per day-Monday-Thursday, one 10 hour shift Friday-Sunday New TPC Installation Concept

  3. SP Installation Assumptions-New Layout • APA protective foam/sides removed after cable management is completed • Survey and photogrammetry can be competed before or after cold test to add flexibility to schedule CPA Assembly Station • CPA components are lowered down using Alimak if large enough otherwise use Material SAS • Materials are placed in front of CPA assembly area and picked up using an electric hoist attached to a shuttle beam • Access is only of the open side of the CPA, it must be moved into the open and the back side accessed via scissor lift • Several tasks like light diffusers require access on both sides at once New TPC Installation Concept

  4. New Layout of Cleanroom and SASs New TPC Installation Concept

  5. 7500mm Materials SAS Layout 14800mm Material SAS CPA Box • The Materials Handling SAS has several important features • Easily removable roof section (sliding roof?) • APA pairs are completely covered except for access • Assembly Tower allows stair access to make connections in the middle and the top access to the other side is via scissor lift • Sliding barn door (or similar) for access to cleanroom • Allows CPA boxes to be lowered into SAS and moved via fork lift into cleanroom New TPC Installation Concept

  6. Roof of SAS is removed and replaced once both APAs are on APA assembly frame ~1-2 hours APA Pair moved to Assembly Tower APA quick release pins ~4-6 hours with crew of 3 riggers and 3 techs APA pair is lowered into Material SAS It is rotated using dual hoists on crane or pivoting on frame bolted to floor that also helps support shipping frame Bottom APA is positioned Top APA is positioned on rail system which is at TCO beam level New TPC Installation Concept

  7. APA Assembly Materials SAS ~2 hours 3 riggers and 3 techs Hydraulic Jack System Top APA on rail system PD cables are attached and tested if they pass begin moving the lower APA up Photon Detector Cables New TPC Installation Concept

  8. APA Assembly Materials SAS Reinforcement plate ~2-4 hours using 3 riggers and 3 techs to attach and move to cleanroom Total time to get APA pair to the work stations ~2 shifts using 3 riggers and 3 techs Lower APA attaches in same way to bottom end of link. The two APAs are attached and tested for electrical isolation Once the APA pairs are attached the hydraulic jacks are lowered and the quick release pins are released The APA is now ready to roll into the cleanroom and onto the shuttle beam It can now be moved to the open APA work station Attaching the APA pairs and moving into the cleanroom takes ~2-4 hours with the same 3 rigger 3 tech crew New TPC Installation Concept

  9. Two APA Work Stations Cable Spool System Prepare APA pair in work station by locking the top APA and stabilizing the bottom using the same connection point as the hydraulic jack Access to both APA work station via stair scaffolding supported by a steel frame and on the other side via scissor lift Install APA cable trays Move cable spool into position using ? Spool weighs a minimum ~50kg New TPC Installation Concept

  10. Two APA Work Stations • All the same steps in the original installation procedures happen at the work station • CE Cables are installed and hooked up to the CE boxes. • Each box and cable is tested and bundles are organized in cable tray with a main bundle prepared for installation to the feed-thru in the cold box • Once all tests are completed and cable management is completed the APA pair is rolled onto the shuttle beam It is estimated that this work takes about 2 shifts for 4 FTEs New TPC Installation Concept

  11. Three Cold Boxes Three Cold Boxes ~ 4 full days dedicated to cabling & un-cabling APA, opening closing door and cold test (3 days) These cold boxes have not been designed they are just double tall ProtoDUNE boxes They have hinged doors so a crane is not needed to open/close door but there is an opening in the cleanroom roof that allows them to be installed using the cavern crane Schedule try's to keep cold tests mainly operating on the weekend, system is designed so that work can continue in the cleanroom at all times New TPC Installation Concept

  12. CPA Installation ~3 days to complete 2 sets of CPA/FC pairs 4m long CPA panel being lifted to Assembly frame CPA Assembly Frame This has not changed from the original concept. It uses a frame mounted on the wall along the stair egress walkway CPA and Field Cage boxes are lowered down in the materials SAS and moved using forklift to place in CPA area. Current process takes ~3 shifts for each CPA/FC pair. There are 2 pairs needed for 3 APA pairs New TPC Installation Concept

  13. First attempt at an Installation Schedule FTE average ended up at 25/shift about 5 more than the original New TPC Installation Concept

  14. The schedule completes 3 APA pairs/week New TPC Installation Concept

  15. Lists of problems to resolve • Cleanliness in SAS and cleanroom • Where/when do you remove outer shell of APA Shipping Frame. How do you clean CPA boxes? Wrapped for deliver • We have not mentioned anything in detail about how dunnage (empty shipping boxes) gets moved back to the surface • Design of the shuttle beam system and minimize the time it takes to make beam connections • Current manlifts only have a platform level of 12m. We need to get to ~14.5m to work on top of APAs, CPA and shuttle beam connections • Cold box design with opening doors • Where do you repair an APA if it fails cold test? • Location for an Alimak and what size is needed to lower insulation boxes? Is it just there during the cold • Schedule constraints for construction the SP infrastructure so it is ready at the proper time • Optimization of Crew sizes and shifts-It does NOT flow properly • Weekend testing in cryostat may be compromised New TPC Installation Concept

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