“MIXED” test Cosmics Tono LNGS I.Kreslo LHEP BERN.

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Presentation transcript:

“MIXED” test Cosmics Tono LNGS I.Kreslo LHEP BERN

Plates sharing ROME? BERN BOLOGNA BARI LYON? LNGS? NEUCH. SALERNO NAPOLI I.Kreslo LHEP BERN

Volume tracks efficiency (12plates) Θ<200 200<Θ<400 Θ>400 BERN BOLOGNA BARI NEUCH. SALERNO NAPOLI Z, microns I.Kreslo LHEP BERN

Gains on basetrack Θ<200 200<Θ<400 Θ>400 BERN BOLOGNA BARI NEUCH. SALERNO NAPOLI Z, microns I.Kreslo LHEP BERN

Gains on basetrack Θ<200 200<Θ<400 Θ>400 BERN BOLOGNA BARI NEUCH. SALERNO NAPOLI Z, microns I.Kreslo LHEP BERN

Gains on basetrack Θ<200 200<Θ<400 Θ>400 BERN BOLOGNA BARI NEUCH. SALERNO NAPOLI Z, microns I.Kreslo LHEP BERN

Grains on basetrack Θ<200 200<Θ<400 Θ>400 BERN BOLOGNA BARI NEUCH. SALERNO NAPOLI Z, microns I.Kreslo LHEP BERN

Coordinate accuracy Θ<200 200<Θ<400 Θ>400 BERN BOLOGNA BARI NEUCH. SALERNO NAPOLI Z, microns I.Kreslo LHEP BERN

Angular accuracy Θ<200 200<Θ<400 Θ>400 BERN BOLOGNA BARI NEUCH. SALERNO NAPOLI Z, microns I.Kreslo LHEP BERN

Basetrack quality Θ<200 200<Θ<400 Θ>400 BERN BOLOGNA BARI NEUCH. SALERNO NAPOLI Z, microns I.Kreslo LHEP BERN

ARE WE FACING A SERIOUS PROBLEM?? Questions Cosmics tracking efficiency for all except Bologna ~60% No evident difference in other parameters Possible reasons: Refreshing -> loss of sensitivity Developing instability (???) Still to many “single” basetracks not confirmed In neighbour plates -> Noise? ARE WE FACING A SERIOUS PROBLEM?? I.Kreslo LHEP BERN

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