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Manuel FahrerCMS Week TB Meeting 24.09.20021/6 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 16 th of October Duration: 8 hours
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Manuel FahrerCMS Week TB Meeting 24.09.20022/6 Beam Conditions total proton fluence: ~ 2.6 x 10 11 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 (!) 10 2 mm 2 x 1mm 11 C 10cm 3cm
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Manuel FahrerCMS Week TB Meeting 24.09.20023/6 Tests 1 st carrier: sensor + hybrid 2 nd carrier: sensor + good TEC module 3 rd 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?
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Manuel FahrerCMS Week TB Meeting 24.09.20024/6 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
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Manuel FahrerCMS Week TB Meeting 24.09.20025/6 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 full sized Sensor V bias I leak V AC-DC (3 groups) I DC-biasresistor (3 groups) I guard 15 parameters in fully populated device carrier TEC Module V bias I leak V,I 125 V,I 250 26+x scope- and 12+y FADC channels avaliable (x,yS0... hopefully!) at least 2 different sampling times possible (500ns, 10Üs,...?)
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Manuel FahrerCMS Week TB Meeting 24.09.20026/6 APV readout APV readout done optically (thanks to Jan Troska) I 2 C 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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