Weekly DUNE SP Detector Integration Engineering Meeting Slides 11/20/18 Kyle Zeug • Alternate cable tray
95% Fill and Cable Tray Height • Can the cable tray be modified to achieve a lower position relative to the 95% fill line? 95% Fill Line • The outcomes could result in compete cable tray submersion
Top Latch and Field Cage Rotation Use exactly 6 degrees not 6.01
Top Latch to Cable Tray • No interference with cable tray uni‐strut when top latch is rotated up 6.0° • Top latch to uni‐strut contact will be made when latch is rotated 29° above horizontal • This amount of rotation is unlikely with FC deployment method
Cable tray to Corrugations • 42mm clearance from cable tray to corrugations (two sides of TPC)
Options for Lowering Cable Tray • Moves into the cryostat mounted to the APA yoke • Mounting brackets removed and trays suspended • Suspension points variable • Constructed of formed sheet metal • 10ga stainless steel
Continued: Options for Lowering Cable Tray • Tray is lower by 96% Fill Line 29mm • Tray is wider by 95% Fill Line 30mm • APA trolley info Top of Yoke unavailable
Continued: Options for Lowering Cable Tray • Clearance for 6.0° latch rotation (but not much more)
Continued: Options for Lowering Cable Tray • More analysis and refinement is worthwhile
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