Babar Silicon Vertex Tracker: Status and Prospects

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Description

The BABAR Silicon Vertex Tracker (SVT) has been efficiently operated for six years since the start of data taking in 1999. Due to higher than expected background levels some unforeseen effects have appeared. We discuss: a shift in the pedestal for the channels of the AToM readout chips that are most exposed to radiation; an anomalous increase in the bias leakage current for the modules in the outer layers. Estimates of future radiation doses and occupancies are shown together with the extrapolated detector performance and lifetime, in light of the new observations.

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5 pages

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Re, V.; Bondioli, M.; Bruinsma, M.; Curry, S.; Kirkby, D.; Berryhill, J. et al. April 27, 2006.

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Description

The BABAR Silicon Vertex Tracker (SVT) has been efficiently operated for six years since the start of data taking in 1999. Due to higher than expected background levels some unforeseen effects have appeared. We discuss: a shift in the pedestal for the channels of the AToM readout chips that are most exposed to radiation; an anomalous increase in the bias leakage current for the modules in the outer layers. Estimates of future radiation doses and occupancies are shown together with the extrapolated detector performance and lifetime, in light of the new observations.

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5 pages

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  • Contributed to VERTEX 2005, Chuzenji Lake, Nikko, Japan, 7-11 Nov 2005

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  • Report No.: SLAC-PUB-11634
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 881786
  • Archival Resource Key: ark:/67531/metadc885740

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  • April 27, 2006

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  • Sept. 21, 2016, 2:29 a.m.

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  • Dec. 2, 2016, 8:30 p.m.

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Re, V.; Bondioli, M.; Bruinsma, M.; Curry, S.; Kirkby, D.; Berryhill, J. et al. Babar Silicon Vertex Tracker: Status and Prospects, article, April 27, 2006; [Menlo Park, California]. (digital.library.unt.edu/ark:/67531/metadc885740/: accessed September 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.