The following email has been sent to D'AURIA, Saverio:

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Dear Saverio D'Auria,

The submission of your abstract has been successfully processed.

Abstract submitted: https://indico.cern.ch/userAbstracts.py?confId=192695.

Status of your abstract: https://indico.cern.ch/abstractDisplay.py?abstractId=161&confId=192695.

See below a detailed summary of your submitted abstract:

Conference: Tipp 2014 - Third International Conference on Technology and Instrumentation in Particle Physics

Submitted by: D'AURIA, Saverio

Submitted on: 31 January 2014 16:26

Title: The Atlas SCT operation and performance

Abstract content We report on the operation and performance of the ATLAS Semi-Conductor Tracker (SCT), which has been functioning for 3 years at the Large Hadron Collider at CERN. The SCT is constructed of 4088 silicon detector modules. We find 99% of the 6.3 million strips are operational, the noise occupancy and hit efficiency exceed the design specifications; the alignment is very close to the ideal to allow on-line track reconstruction and invariant mass determination. We will report on the operation and performance of the detector including an overview of the issues encountered. We observe a significant increase in leakage currents from bulk damage due to non-ionizing radiation which is in agreement with the predictions.We will also cover the time evolution of the key parameters of the strip tracker, including the evolution of noise and gain, the measurement of the Lorentz angle and the tracking efficiency in the harsh LHC environment. Valuable lessons for future silicon strip detector projects will be presented.

Summary We propose a talk that summarizes the data-taking operations of the ATLAS Semi Conductor Tracker at the LHC, including the main difficulties we had to cope to, namely the failure of the optical transmitter on the readout board and the higher current of a subset of sensors. We have an updated determination of the radiation damage and we can show the performance of the SCT during tha LHC Run-1. The activities during the shutdown consist mostly in increasing the number of readout boards, to cope with a higher trigger rate.

Primary Authors: ATLAS SCT COLLABORATION, Semi Conductor Tracker (ATLAS) saverio.dauria@cern.ch

Co-authors:

Abstract presenters: ATLAS SCT COLLABORATION, Semi Conductor Tracker

Track classification: Sensors: 1b) Semiconductor Detectors

Presentation type: --not specified--

Comments: It is ATLAS policy to design and ask the speaker only after a talk is accepted. Please contact the ATLAS-SCT speakers committee for any further information. If the session chair likes to focus the talk on some specific aspect of operation and performance we'd be happy to follow the indications.