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Status of LCcal Project. Scintillator tiles Fibr e s Si detector Simulation Future beam tests. Remind: . Contributors (Como, LNF, Padova, Trieste):
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Status of LCcal Project • Scintillator tiles • Fibres • Si detector • Simulation • Future beam tests Remind: Contributors (Como, LNF, Padova, Trieste): M. Alemi, A.Anashkin, M.Bettini, S.Bertolucci, E. Borsato, M. Caccia, P.C, C. Fanin, S. Miscetti, M. Prest, R. Peghin, L. Ramina, E. Vallazza P. Checchia ECFA-DESY St. Malo
Scintillator tiles • 3 mm Kuraray SCSN-61 (25x25 cm2) • 3 mm Bicron BC-408 (25x25 cm2) Machined with vacuum plate as holder Whole Production starting now P. Checchia ECFA-DESY St. Malo
Fibres Room temperature curvature problem solved Use middle temperature (500-700) oven Kuraray 1mm d. Y11 300 ppm multicladding > 3 ph e- /m.i.p./tile obtained stable in >30 days time P. Checchia ECFA-DESY St. Malo
Si Detector • Problems with the detector production: • 1)delay due to foundry, 2)bad quality in the first lot of wafers 3)second lot (4 wafers) under test: P. Checchia ECFA-DESY St. Malo
1 wafer broken ‘soft breakdown’ Full depletion <30 V C vs Vbias 30 pF P. Checchia ECFA-DESY St. Malo
PCB : Printed board design ready in production Chip side Detector side P. Checchia ECFA-DESY St. Malo
Simulation (Geant 4) Expected Energy resolution Light collection effect (20 %) Lateral dimension with tungsten P. Checchia ECFA-DESY St. Malo
Future Beam Tests P. Checchia ECFA-DESY St. Malo
Tunable number of 500 MeV electrons 2 electrons 5 electrons P. Checchia ECFA-DESY St. Malo
Beam time at CERN: Do you want to share it ? P. Checchia ECFA-DESY St. Malo
Conclusions • Scintillator plates production starting • Si detectors to be tested (and final production to be scheduled) • Beam test with partial detector at CERN • Full detector test ( Frascati? ) by september P. Checchia ECFA-DESY St. Malo