Manuel Fahrer CMS Week TB Meeting 24.09.2002 1/6
1-Shot Test BeamCERN 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 conditionstestsmechanicssignal drivingreadout
Date around PS MD on 16th of OctoberDuration: 8 hours
Manuel Fahrer CMS Week TB Meeting 24.09.2002 2/6
Beam Conditions
total proton fluence: ~2.6 x 1011 per shotfast extraction: 36.6ns-pulses (separated by 262ns) best simulation that can be done would be double shotdone in same supercycle as slow extraction 1-shot tests in conjuction with other east hall beam tests (!)
102mm2 x 1mm 11C10cm
3cm
Manuel Fahrer CMS Week TB Meeting 24.09.2002 3/6
Tests
1st carrier: sensor + hybrid2nd carrier: sensor + good TEC module3rd carrier: sensor + KA prototype TEC module
Testprogramm with last moduleshots with ...LV off, HV offLV on, HV offLV off, HV onLV 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?
Manuel Fahrer CMS Week TB Meeting 24.09.2002 4/6
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
Manuel Fahrer CMS Week TB Meeting 24.09.2002 5/6
Signal Drivinglab tests performed with short pulsed LED signals and minisensorssignal driving over long distances (~30m) with resolution of 1srise and fall times of leakage current and AC-DC voltage: 2 and 14stime resolution sufficient!
Readout
full sized SensorVbiasIleakVAC-DC (3 groups) IDC-biasresistor (3 groups)Iguard
15 parameters in fully populated device carrierTEC ModuleVbiasIleakV,I125V,I250
26+x scope- and 12+y FADC channels avaliable (x,y0... hopefully!) at least 2 different sampling times possible (500ns, 10s, ...?)
Manuel Fahrer CMS Week TB Meeting 24.09.2002 6/6
APV readout
APV readout done optically (thanks to Jan Troska)I2C transfer over ~30m successfully testedtotal readout chain is now being setup and tested readout software has to be done
Conclusion
beam setup okmechanics oksignal aquisition and monitoring nearly finishedtesting of readout chain in progresswe expect to be ready in time!