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Test Tube Activities at Ohio State (7/29/03)

Test Tube Activities at Ohio State (7/29/03). Amphenol/Spectra Strip will send two 10 m long samples of signal cable With a (round) jacket, shielding 20 pairs (more than we need. Can we crimp this to the connectors?) Who will make the signal cables? (I won’t be at SLAC before Aug. 26)

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Test Tube Activities at Ohio State (7/29/03)

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  1. Test Tube Activities at Ohio State (7/29/03) • Amphenol/Spectra Strip will send two 10 m long samples of signal cable • With a (round) jacket, shielding • 20 pairs (more than we need. Can we crimp this to the connectors?) • Who will make the signal cables? (I won’t be at SLAC before Aug. 26) • Kerpen HV cable is not available. • No stock at CERN or Kerpen (in 10, 20 or 25 wire configuration) • 37-wire cable available at Kerpen (not recommended)

  2. HV Connection(s) • HV capacitors • Cable Connector • Anode signal readout • What HV connector? Do we have room for 8? • “Pigtail” for anode signals/short? • Short wires to endcaps • Build at OSU, send to Princeton Large Cell LST 4x 1 MOhm HV 1 nF Anode Signal

  3. Differential Driver and Preamp • Based on Angelo’s design (from Princeton workshop) • On chamber preamp with differential output (4 channel PC board) • Differential receiver and preamp with analog output. • No discriminator or digital output (needs to be added for DAQ readout) • Both modules have been built and are currently being tested. • Will send driver circuit to Princeton for installation in module/Al box.

  4. Integration Questions • How do we connect the signal cables to the strips? • Does everything have to be in the Al box? • Can we have 6’’ pigtails that connect to the signal cable and/or the preamp circuit? • We need to know, how much space is available in Al box (also for HV) • We would like to be able to test several combinations: • Baseline design (no diff. driver/preamp, Standard FE receiver/preamp) • Differential design (with differential preamp, receiver) • Pseudo differential (no diff. driver/preamp, differential receiver) Jumperboard BaselineReceiver Tube 1 DifferentialReceiver* Tube 2 Differential Driver orjumper board Al box * Can go on either tube

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