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Title: Performance of silicon pixel detectors at small track incidence angles for the ATLAS Inner Tracker upgrade

Authors:
; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1359650
Grant/Contract Number:
AC02-05CH11231; FG02-95ER40896; AC02-76SF00515
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Additional Journal Information:
Journal Volume: 831; Journal Issue: C; Related Information: CHORUS Timestamp: 2017-10-04 21:53:18; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Country of Publication:
Netherlands
Language:
English

Citation Formats

Viel, Simon, Banerjee, Swagato, Brandt, Gerhard, Carney, Rebecca, Garcia-Sciveres, Maurice, Hard, Andrew Straiton, Kaplan, Laser Seymour, Kashif, Lashkar, Pranko, Aliaksandr, Rieger, Julia, Wolf, Julian, Wu, Sau Lan, and Yang, Hongtao. Performance of silicon pixel detectors at small track incidence angles for the ATLAS Inner Tracker upgrade. Netherlands: N. p., 2016. Web. doi:10.1016/j.nima.2016.03.099.
Viel, Simon, Banerjee, Swagato, Brandt, Gerhard, Carney, Rebecca, Garcia-Sciveres, Maurice, Hard, Andrew Straiton, Kaplan, Laser Seymour, Kashif, Lashkar, Pranko, Aliaksandr, Rieger, Julia, Wolf, Julian, Wu, Sau Lan, & Yang, Hongtao. Performance of silicon pixel detectors at small track incidence angles for the ATLAS Inner Tracker upgrade. Netherlands. doi:10.1016/j.nima.2016.03.099.
Viel, Simon, Banerjee, Swagato, Brandt, Gerhard, Carney, Rebecca, Garcia-Sciveres, Maurice, Hard, Andrew Straiton, Kaplan, Laser Seymour, Kashif, Lashkar, Pranko, Aliaksandr, Rieger, Julia, Wolf, Julian, Wu, Sau Lan, and Yang, Hongtao. Thu . "Performance of silicon pixel detectors at small track incidence angles for the ATLAS Inner Tracker upgrade". Netherlands. doi:10.1016/j.nima.2016.03.099.
@article{osti_1359650,
title = {Performance of silicon pixel detectors at small track incidence angles for the ATLAS Inner Tracker upgrade},
author = {Viel, Simon and Banerjee, Swagato and Brandt, Gerhard and Carney, Rebecca and Garcia-Sciveres, Maurice and Hard, Andrew Straiton and Kaplan, Laser Seymour and Kashif, Lashkar and Pranko, Aliaksandr and Rieger, Julia and Wolf, Julian and Wu, Sau Lan and Yang, Hongtao},
abstractNote = {},
doi = {10.1016/j.nima.2016.03.099},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = C,
volume = 831,
place = {Netherlands},
year = {Thu Sep 01 00:00:00 EDT 2016},
month = {Thu Sep 01 00:00:00 EDT 2016}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1016/j.nima.2016.03.099

Citation Metrics:
Cited by: 2works
Citation information provided by
Web of Science

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  • The ATLAS experiment currently under design for the CERN LHC contains an inner detector which tracks charged particles from the LHC beam-pipe to the electromagnetic calorimeter system. The main task is to reconstruct event tracks with high efficiency, to assist electron, photon and muon recognition and to reconstruct signatures of short-lived particles. Track densities at the LHC will be extremely large, and hence high precision measurements are required. This will be achieved using semiconductor tracking detectors, making use of silicon microstrip and pixel technology. For detectors closest to the beam interaction point the radiation levels are extremely high-up to 10more » MRad. At the time of the ATLAS technical proposal, it was envisaged that gallium arsenide detectors could withstand such an environment. However, it has since become clear that GaAs is not as radiation hard as first expected, and that detectors would not perform sufficiently for the required time. In addition, progress on silicon detectors has indicated that they are able to withstand harsh radiation environments, and hence further work on silicon detectors now continues.« less
  • The silicon Inner Tracker is the innermost detector part of the CMS experiment at CERN. This detector contains about 200 m{sup 2} of precision silicon sensors, fast and radiation hard electronics, an optical readout and many more highly sophisticated components. The total number of sensor elements amounts to 9.3 million strips and 66 millions pixels. The strip detector is completely assembled and has been commissioned at the operating temperature of about--15 deg. C. A collaboration consisting of about 500 members coming from 51 institutes worldwide has designed and constructed this detector in a period of more than 12 years. Themore » different components for the tracker were developed in cooperation with industrial partners. The Inner Tracker was installed in the CMS experiment at the end of 2007. A discussion on the upgrade of CMS and the Inner Tracker has already started in view of an increase in performance of the LHC collider. To cope with the even more demanding requirements expected for the next generation apparatus an extensive R and D period is about to start with many opportunities opening up for new collaboration members to join the effort.« less
  • Results on beam tests of 3D silicon pixel sensors aimed at the ATLAS Insertable-B-Layer and High Luminosity LHC (HL-LHC) upgrades are presented. Measurements include charge collection, tracking efficiency and charge sharing between pixel cells, as a function of track incident angle, and were performed with and without a 1.6 T magnetic field oriented as the ATLAS Inner Detector solenoid field. Sensors were bump bonded to the front-end chip currently used in the ATLAS pixel detector. Full 3D sensors, with electrodes penetrating through the entire wafer thickness and active edge, and double-sided 3D sensors with partially overlapping bias and read-out electrodesmore » were tested and showed comparable performance. Full and partial 3D pixel detectors have been tested, with and without a 1.6T magnetic field, in high energy pion beams at the CERN SPS North Area in 2009. Sensors characteristics have been measured as a function of the beam incident angle and compared to a regular planar pixel device. Overall full and partial 3D devices have similar behavior. Magnetic field has no sizeable effect on 3D performances. Due to electrode inefficiency 3D devices exhibit some loss of tracking efficiency for normal incident tracks but recover full efficiency with tilted tracks. As expected due to the electric field configuration 3D sensors have little charge sharing between cells.« less
  • The production of a large number of silicon micro-strip detector modules demands an assembly procedure that minimises the risk to components and error in the alignment of detectors. A novel technique, being developed to construct modules for the ATLAS SemiConductor Tracker, which employs active alignment and monitoring to assemble detector modules is discussed.