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1-Shot Test Beam

1-Shot Test Beam. CERN CMS: M.Huhtinen, R.Hammarstrom, A.Macpherson CERN ATLAS, PS, Karlsruhe CMS. Overview Simulate conditions of asynchronous beam abort  Consequences to the tracker? Status Report beam conditions tests mechanics signal driving readout

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1-Shot Test Beam

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  1. 1-Shot Test Beam CERN CMS: M.Huhtinen, R.Hammarstrom, A.Macpherson CERN ATLAS, PS, Karlsruhe CMS • Overview Simulate conditions of asynchronous beam abort  Consequences to the tracker? • Status Report • beam conditions • tests mechanics signal driving readout Date around PS MD on 16th of October Duration: 8 hours

  2. 3cm 10cm Beam Conditions 102mm2 x 1mm 11C total proton fluence: ~2.6 x 1011 per shot fast extraction: 36.6ns-pulses (separated by 262ns)  best simulation that can be done would be double shot done in same supercycle as slow extraction  1-shot tests in conjuction with other east hall beam tests (!)

  3. Tests 1st carrier: sensor + hybrid 2nd carrier: sensor + good TEC module 3rd carrier: sensor + KA prototype TEC module Testprogramm with last module shots with ... • LV off, HV off • LV on, HV off • LV off, HV on • LV on, HV on (increase risk of damage) • during ~30 consecutive shots: ramp HV (0..100V in 20V-steps and 100..400V in 50V-steps) • module still alive?

  4. Mechanics flexible mounting of module fittings realized with long holes  vertical tilting and horizontal movement of module possible  module‘s position can be adjusted to changing beam positions

  5. Signal Driving • lab tests performed with short pulsed LED signals and minisensors • signal driving over long distances (~30m) with resolution of 1Üs • rise and fall times of leakage current and AC-DC voltage: 2 and 14Üs • time resolution sufficient! Readout 15 parameters in fully populated device carrier • full sized Sensor • Vbias • Ileak • VAC-DC (3 groups) • IDC-biasresistor (3 groups) • Iguard • TEC Module • Vbias • Ileak • V,I125 • V,I250 26+xscope- and 12+yFADC channels avaliable (x,yS0... hopefully!)  at least 2 different sampling times possible (500ns, 10Üs, ...?)

  6. APV readout • APV readout done optically (thanks to Jan Troska) • I2C transfer over ~30m successfully tested • total readout chain is now being setup and tested • readout software has to be done Conclusion • beam setup ok • mechanics ok • signal aquisition and monitoring nearly finished • testing of readout chain in progress • we expect to be ready in time!

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