1-Shot Test Beam

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!