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UVic Feedthrough Status (electrical)

UVic Feedthrough Status (electrical). Cables at UVic:. Pigtails:. Type received T47 318 + 18 T48 214 + 12 T49 32 T50 16 T51 16 + (10) T52 33 LV 20. Vacuum Cables:.

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UVic Feedthrough Status (electrical)

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  1. UVic Feedthrough Status (electrical) Cables at UVic: Pigtails: Type received T47 318 + 18 T48 214 + 12 T49 32 T50 16 T51 16 + (10) T52 33 LV 20 Vacuum Cables: Signal received: 600 (-112) +438 LV received: 40

  2. Cable tests: Visual inspection of all cables Pigtails: a) continuity and cross-wiring b) 64x64 cross talk for calibration cables Vacuum cables: a) high-precision resistance measurement b) ground-contact resistance c) impedance of 6 channels out of 64 d) cross-talk of nearest neighbours e) intermittence of signal traces

  3. Currently Working on Database Entries Pigtails: Continuity and cross-wiring 64x64 cross talk matrix for calibration cables Vacuum Cables: Rmin, Rmaxof all 32 channels of 1 microstrip line (i.e. 4 entries per cable) average Z of each 1 microstrip line (i.e. 2 entries per cable) Contact resistance - average value of each side & number of good contacts out of 13 (i.e. 2x2 entries per cable) Maximum and minimum subtracted cross-talk (i.e. 2 entries per cable)

  4. Electrical Feedthrough Tests at CERN After reception -cross-talk (nearest neighbour for vac. Cables) high precision R time required: 1-2 days/FT Before installation - none During Installation - none After installation - cross talk (nearest neighbour for vac. Cables) high precision R time required: 1-2 days/FT Note: While the cross talk measurements are in progress, no welding can be preformed in the vicinity!

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