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Scan Status Overview

Scan Status Overview. ToT problem understood and fixed Vcal needs to be set at scan initialization Was always set to zero in STcontrol No loop over charge in STcontrol implemented electrons-to-DAC functions for comparison with TurbDAQ Most scans yield reasonable results in STcontrol now

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Scan Status Overview

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  1. Scan Status Overview • ToT problem understood and fixed • Vcal needs to be set at scan initialization • Was always set to zero in STcontrol • No loop over charge in STcontrol • implemented electrons-to-DAC functions for comparison with TurbDAQ • Most scans yield reasonable results in STcontrol now • STcontrol can now configure the channel to module input is connected to from configuration file Scan Status 06/12/10 M. Wittgen Page 1

  2. Timewalk Scans • Basic configuration • One level 1 trigger • Loop over strobe delay 0-63 on RCE and • Vcal 70 -1000 on host (steered by STcontrol) • VCAL is 10 bit value (0-1023) • Misrepresented as char/octet in PixelModuleConfig.idl • fixed to unsigned long (32bit) Scan Status 06/12/10 M. Wittgen Page 2

  3. STcontrol Status Non-BOC-Scans Scan Status 06/10/10 M. Wittgen Page 3

  4. Scan Setup • Tested with module M511958 with HV connected • one FEC broken • threshold tuned to 3200 electrons with TurboDAQ • ToT tuned to 30 cycles at 20000 electrons • Framework with STcontrol now in place • probably still some more bug • would be good to check the result with the scan experts Scan Status 06/12/10 M. Wittgen Page 4

  5. CORBA Problems • Histograms are published to histogram server • takes several minutes if all histograms are sent • rate in the order of ten per second • 101 bins x (3x ToT + 3 BCID + OCC) = 707 histograms • Alternative (faster) method: download from RCE • CORBA crashes (timeout?) when more then a certain amount (bins>50) of histograms present • For now workaround in STcontrol • download one-bye-one • reasonably fast Scan Status 06/12/10 M. Wittgen Page 5

  6. TurboDAQ/STcontrol GDAC Tune Scan Status 06/12/10 M. Wittgen Page 6

  7. TurboDAQ/STcontrol FDAC Tune Scan Status 06/12/10 M. Wittgen Page 7

  8. GDAC FDAC Tune Scan Status 06/12/10 M. Wittgen Page 8

  9. IF Tune Scan Status 06/12/10 M. Wittgen Page 9

  10. Analog Scan ToT=30 @ 2000 e- Scan Status 06/12/10 M. Wittgen Page 10

  11. ToT vs charge calibration Scan Status 06/12/10 M. Wittgen Page 11

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