CMS week – December 8-12, 20031 TOB sensor quality Regina Demina University of Rochester.

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Presentation transcript:

CMS week – December 8-12, TOB sensor quality Regina Demina University of Rochester

CMS week – December 8-12, OutlineOutline Stability of IV Leaky strips

CMS week – December 8-12, IV vs time Current at 400V FNAL remeasurement vs DB 3/61 failed on retest 0/65 failed on retest 17/250 failed on retest

CMS week – December 8-12, IVCV no vacuum effect so far Sensor left on chuck for several hours between measurements 1 and 2. Just needed rest?

CMS week – December 8-12, I leak and I strip

CMS week – December 8-12, SummarySummary Some instability of I leak vs time is observed 2002 sensors seem to be the worst, fraction of originally passed sensors failing retests –6.8% 2003 sensors look better (but maybe not enough time) I leak increase seems to be related to leaky strip development

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