Vertical Drift Installation Planning - PowerPoint Presentation

1. Vertical Drift Installation PlanningNext StepsJ Stewart for the LBNF I&I teamMay 26 2021

2. Completing the initial discussionsInitial meetings with most the consortia completeField CageCathodeTop CRPBottom CRPTop electronicsBottom ElectronicsWill seek input from PhotonDAQ and CALCI can wait until the most important issues from the above are addressed.

3. Points to be clarified

4. Top Electronics - Points to be clarified5/23/21Vertical Drift Top Electroncis installation4Electronics rack layoutInput from Top Elect is available. Coordination with Terri is needed to define rack builds.How is the Chimney lifted in position?What is the weight of the Chimney? (initial estimate 340kg)Cable fiber definition for the cryostat roof (µTCA crates to mezzanines and DAQ)Information is available needs coordinated with Terri.Are µTCA crates powered by 48V-DC or 110V-AC? (110V is assumed)Should be verified with the grounding committee.When can the installation start and can it be finished before the CRP installation starts?Are there any light flashers on the CRP and would they interface to the electronics feedthrough? Assume noThe number of shipping boxes and other material handling information should be transmitted to Ladia. (Initial data is sent)Material handlingChimney will fit in the cage. All other materials are smaller. Assume everything will fit in the cageHow are the short cables inside the cryostat tested after installation?How are fibers protected ?Is the chimney weight an issue for the cryostat? (total weight, number and location, needs transmitted to Dimitar)Check the head height under the mezzanine.Coordination of the CRP hoisting and the final work on the top electronics is need. The fibers and cables are fragile.When is a gray room needed and can this be on 4910?Will there be any QC and testing in the warehouse?Final QCIntegration checks concern the LV distribution system that the correct currents are distributed and the FE delivers data and grounding and noise are correct. A small dedicated DAQ system can be used to test individual crates if main DAQ is unavailable

5. Bottom Electronics – Points to be clarified5/23/21Vertical Drift Bottom Electroncis installation5Is there an interface with the support for the FC? Assume nonePlacement, number, and function of the feedthrough on Cryostat roof?Are there PD modules on the wall and if so do they share the electronics feedthrough? What about other PD modules?Leak testing procedure (When and how often?)How are the crosses lifted in position. (use the tripod?)What is the cable bundle to be used? How large are they? (Bundles 10% thicker than HD) (2 bundle per CRP)Are there mini-crates near the WIEC? (Need input from photon)Are bottom CRP bias supplies in the Bot_Elect. scope? YesHow many cable bundles and feedthrough are planned?Are other fibers or objects in the feedthrough needed?Need to determine # shipping boxes required. Material handlingInitial QC and testing in the warehouse?Final QCThe effort needed for testing cables after installation needs to be refined. This may add time to installation.DAQ ready week 1 – need to verifyInterface to PD system.Cable length verificationUnderstand interfaces to the ground planes. (do cables run through T_elect feedthrough?)Process for connecting cables to CRPHow to deal with the manpower overlap between HD and VD electronics installationGray room rework spaceIs a patch panel needed near the CRP?How and where are the bottom CRP positioned while the bottom cables are attached? (impacts length)

6. Bottom CRP - Points to be clarified5/23/21Vertical Drift Bottom CRP installation6How to store CRP outside the gray room?Surface transportation inside US?How to unpack, clean, and move the CRP to location?How to handle the CRP and rotate them face up?How to hold the CRP while the cabling is done?As no work under a hung load is allows some fixed support/table is needed.Where is the CRP positioned during the cabling, as technicians will need to work all around the CRP?How are the cables dressed/routed? Strain relief?How to place the CRP in final position?The clearance to the FC and other CRP is tight so a controlled placement scheme is needed.What fixturing locates the CRP exactly in location a the end?Material handling (fit in cage, rotation, shipping on US roads…)Initial QC and testing in the warehouse? And required space.Final QC

7. Cathode - Points to be clarified5/23/21Vertical Drift Cathode Installation7What does the interface between the CRP superstructure, the CRP and the cathode look like?How do the wires pass the CRP and where do they anchor on the CRP_SS and cathode?Is it better to lift 3mx3.4m panels or 6m by 9m?The Lifting equipment must be below the cathode modules. What does it look like?How is the load transferred to the permanent fixation from the hoists/winches? Is adjustment needed?Should the super cathode be assembled on an assembly table so it can be moved easily (wheels) and the winches can be installed on the bottom?Should one consider a lifting fixture? One cannot work under a hung load.How are the cathode modules boxed and shipped?Material handling (fit in cage, rotation, shipping on US roads…)Initial QC and testing in the warehouse?Final QC

8. Field Cage – Points to be clarified5/23/21Vertical Drift Field Cage installation8How is the HV cable and feedthrough installed?East end- west end? Does this impact FC? (where is the lift?)How to raise the FC_SB to the roof and position/surveyHow is the load transferred to the permanent fixation from the winches?Is a cantilevered cart needed for the FC panels?What needs to be planned for the fibers to the cathode photon modules?How much of the West end wall is installed before the bottom CRP?Need to determine # shipping boxes required. Material handling (fit in cage, rotation, shipping on US roads…)Initial QC and testing in the warehouse?Final QCWhich feedthrough for support beams? What features for adjustment and motion?Floor and cable trays. Height of floor

9. Top CRP – Points to be clarified03.022021Vertical Drift Far Detetcor installation9How to store SS outside, how to move the SS structure inside the cryostat, and how to position it on the floorHow to raise the SS to the roof and position/surveyHow to position and manipulate a CRP inside the cryostatHow to raise a CRP to the cabling position (winching system?)How to connect all cables to a CRPHow to raise the CRP to final height and lock in positionMaterial handling (fit in cage, rotation, shipping on US roads…)Initial QC and testing in the warehouse?Final QC

10. StrategyThe list is too long to attack all at once. Agree here on a short list of the most critical items and try to get clarification in the short term.Series of focused meetings on these topics.Also propose starting the process of collecting logistics and electrical data which can be processed in parallel. Talks from Terri and Ladia at this meeting

11. Critical itemsHow are the top CRP raised into position and cabled?Must understand interferences with adjacent CRP and access for cabling.Submit attendees How are the cathodes supported and what does the interface to the top CRP look like?How is the cathode lifted into position?What is the number and function of each of the cryostat roof feedthrough? Where are the PD fibers and FC supports?How are the lower CRP cables and lifted/slid into position?How are the Chimneys lifted into the cryostat and is there enough headroom?Understanding the interfaces between the PD and other systemsPD mounting on the cathode

12. Critical itemsHow are the top CRP raised into position and cabled?Must understand interferences with adjacent CRP and access for cabling.How are the cathodes supported and what does the interface to the top CRP look like?What is the number and function of each of the cryostat roof feedthrough? Where are the PD fibers and FC supports?How are the lower CRP cables and lifted/slid into position?How are the Chimneys lifted into the cryostat and is there enough headroom?How is the cathode lifted into position?Does the cathode connect to the field cage and where do the PD fibers run?

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