Operational experience with the CDF Run II silicon detector

Conference · Thu Jan 01 00:00:00 EST 2009 · Nucl.Instrum.Meth.A

DOI:https://doi.org/10.1016/j.nima.2008.08.082· OSTI ID:3020094

Eusebi, Ricardo ^[1]

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1. Fermilab

The Collider Detector at Fermilab (CDF) Run II silicon detector is currently the largest operating silicon detector in High Energy Physics. Its 750,000 channels, spread over 6m2 of p-on-n silicon sensors, and allow precision tracking of charged par ticles and vertexing at the 50 mu m level. The CDF Run II silicon detector is fundamental for all branches of the CDF physics program. It played a critical role in the discovery of B s mixing and is used extensively for the current Higgs boson searches at the forefront of the energy frontier. Over the last 6 years, the detector efficiency has remained stable above 95% after the Run II commissioning period. While originally designed to withstanding up to 3 fb - 1 of data, the CDF II silicon detector will h ave to last to the end of Run II where 5 - 8 fb - 1 of data are expected to be delivered. This letter presents the observed effects of infrastructure aging and the solutions implemented to prevent them, followed by the assessment on radiation damage and e xpected performance to the end of the Tevatron Run II program. The radiation aging of such a large scale system is particular relevant for future silicon detectors in hadronic colliders as LHC.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: US Department of Energy
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 3020094
• Report Number(s): FERMILAB-CONF-09-041-E; oai:inspirehep.net:812636
• Resource Type: Conference paper
• Conference Information: Journal Name: Nucl.Instrum.Meth.A
• Country of Publication: United States
• Language: English