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For the barrel part of the CMS pixel tracker about 800 silicon pixel detector modules are required. The modules are bump bonded, assembled and tested at the Paul Scherrer Institute. This article describes the experience acquired during the…

Instrumentation and Detectors · Physics 2008-11-26 S. König , Ch. Hörmann , R. Horisberger , B. Meier , T. Rohe , S. Streuli , R. Weber , H. Chr. Kästli , W. Erdmann

The Phase-1 upgrade of the CMS pixel detector is built out of four barrel layers (BPix) and three forward disks in each endcap (FPix). It comprises a total of 124M pixel channels in 1,856 modules, and it is designed to withstand…

Instrumentation and Detectors · Physics 2017-10-02 Weinan Si

The pixel detector is the innermost tracking device of the CMS experiment at the LHC. It is built from two independent sub devices, the pixel barrel and the end disks. The barrel consists of three concentric layers around the beam pipe with…

Instrumentation and Detectors · Physics 2008-11-26 H. Chr. Kästli , W. Bertl , W. Erdmann , K. Gabathuler , Ch. Hörmann , R. Horisberger , S. König , D. Kotlinski , B. Meier , P. Robmann , T. Rohe , S. Streuli

The CMS experiment at the LHC includes a hybrid silicon pixel detector for the reconstruction of charged tracks and of the interaction vertices. The detector is made of three barrel layers and two disks at each end of the barrel. Detector…

Instrumentation and Detectors · Physics 2007-10-29 Vincenzo Chiochia

The CMS pixel detector consists of approximately 66 million silicon pixels whose analog signals are read out by 15,840 programmable Readout Chips. With the recent startup of the LHC, the detector is now collecting data used for precise…

Instrumentation and Detectors · Physics 2011-08-31 B. Kreis

To fully exploit the increased luminosity of the HL-LHC, the CMS Inner Tracker is undergoing a major upgrade to withstand extreme radiation levels and data rates, while improving granularity and reducing material budget. The upgraded…

Instrumentation and Detectors · Physics 2025-06-12 Panagiotis Assiouras

The CMS Pixel detector, consisting of three barrel layers and two endcap disks at each barrel end, was installed in the CMS experiment in summer 2008. After a preliminary commissioning phase with pulse injections the detector participated…

Instrumentation and Detectors · Physics 2010-02-17 V. Chiochia

The CMS experiment will include a pixel detector for pattern recognition and vertexing. It will consist of three barrel layers and two endcaps on each side, providing three space-points up to a pseudoraditity of 2.1. Taking into account the…

Instrumentation and Detectors · Physics 2009-11-11 R. Horisberger , D. Kotlinski , T. Rohe

The electromagnetic barrel calorimeter is one of the main components of the planned GlueX experiment. It will consist of 48 modules made of consecutive layers of 4 m long lead sheet and fast green scintillator fibers for an overall number…

Instrumentation and Detectors · Physics 2009-11-13 M. Barbi

The CMS experiment at the LHC includes a hybrid silicon pixel detector for the reconstruction of charged tracks and of the interaction vertices. The barrel region consists of n-in-n sensors with 100X150 um^2 cell size processed on diffusion…

First of its kind, the barrel section of the MIP Timing Detector is a large area timing detector based on LYSO:Ce crystals and SiPMs which are required to operate in an unprecedentedly harsh radiation environment (up to an integrated…

Instrumentation and Detectors · Physics 2025-08-14 F. Addesa , P. Akrap , A. Albert , B. Allmond , T. Anderson , J. Babbar , D. Baranyai , P. Barria , C. Basile , A. Benaglia , A. Benato , M. Benettoni , M. Besancon , N. Bez , S. Bhattacharya , R. Bianco , D. Blend , A. Boletti , A. Bornheim , R. Bugalho , A. Bulla , B. Cardwell , R. Carlin , M. Casarsa , F. Cetorelli , F. Cossutti , B. Cox , G. Da Molin , F. De Guio , K. De Leo , F. De Riggi , P. Debbins , D. Del Re , R. Delli Gatti , J. Dervan , P. Devouge , K. Dreimanis , O. M. Eberlins , F. Errico , E. Fernandez , W. Funk , A. Gaile , M. Gallinaro , R. Gargiulo , R. Gerosa , A. Ghezzi , B. Gyongyosi , Z. Hao , A. H. Heering , Z. Hu , R. Isocrate , M. Jose , A. Karneyeu , M. S. Kim , A. Krishna , B. Kronheim , O. K. Köseyan , A. Ledovskoy , L. Li , Z. Li , V. Lohezic , F. Lombardi , M. T. Lucchini , M. Malberti , Y. Mao , Y. Maravin , B. Marzocchi , D. Mazzaro , R. Menon Raghunandanan , P. Meridiani , C. Munoz Diaz , Y. Musienko , S. Nargelas , L. L. Narváez , C. Neu , G. Organtini , T. Orimoto , D. Osite , M. Paganoni , S. Palluotto , C. Palmer , N. Palmeri , F. Pandolfi , R. Paramatti , T. Pauletto , A. Perego , G. Pikurs , G. Pizzati , R. Plese , C. Quaranta , G. Reales Gutiérrez , N. Redaelli , S. Ronchi , R. Rossin , M. Ö. Sahin , F. Santanastasio , I. Schmidt , D. Sidiropoulos Kontos , T. Sievert , R. Silva , P. Simmerling , L. Soffi , P. Solanki , G. Sorrentino , M. Spiropulu , N. R. Strautnieks , X. Sun , D. D. Szabo , T. Tabarelli de Fatis , G. Tamulaitis , R. Taylor , M. Titov , M. Tosi , G. Trabucco , A. Tsirou , C. Tully , M. Turcato , B. Ujvari , J. Varela , F. Veronese , V. Vladimirov , J. Wang , M. Wayne , S. White , Z. Wu , J. W. Wulff , R. A. Wynne , L. Zhang , M. Zhang , G. Zilizi

The phase 1 upgrade of the CMS pixel detector has been designed to maintain the tracking performance at instantaneous luminosities of $2 \times 10^{34} \mathrm{~cm}^{-2} \mathrm{~s}^{-1}$. Both barrel and endcap disk systems now feature one…

Instrumentation and Detectors · Physics 2018-07-25 Jory Sonneveld

The ATLAS pixel detector consists of 1744 identical silicon pixel modules arranged in three barrel layers providing coverage for the central region, and three disk layers on either side of the primary interaction point providing coverage of…

The production of silicon detector modules that will instrument the CMS Inner Tracker has nowadays reached 1300 units out of the approximately 3700 needed in total, with an overall yield close to 96%. A description of the module design, the…

Instrumentation and Detectors · Physics 2009-11-10 Giacomo Sguazzoni

In view of the High Luminosity LHC, the current CMS tracking detector will have to be replaced during Long Shutdown 3 to cope with the higher radiation environment and to withstand an increased data rate. To prepare for the so-called CMS…

Instrumentation and Detectors · Physics 2025-05-13 Giorgia Bonomelli

The CMS inner pixel detector system is planned to be replaced during the first phase of the LHC luminosity upgrade. The plans foresee an ultra low mass system with four barrel layers and three disks on either end. With the expected increase…

Instrumentation and Detectors · Physics 2019-08-13 Carlotta Favaro

After the Large Hadron Collider (LHC) upgrade into High Luminosity LHC (HL-LHC), the instantaneous luminosity is expected to reach values up to 7.5x10^34cm^2/s, causing a harsher radiation environment as well as a significant increase in…

Instrumentation and Detectors · Physics 2026-05-07 Giorgia Bonomelli

The CAMbridge Emission Line Surveyor (CAMELS) is a pathfinder program to demonstrate on-chip spectrometry at millimetre wavelengths. CAMELS will observe at frequencies from 103-114.7 GHz, providing 512 channels with a spectral resolution of…

Instrumentation and Methods for Astrophysics · Physics 2014-01-20 C. N. Thomas , S. Withington , R. Maiolino , D. J. Goldie , E. de Lera Acedo , J. Wagg , R. Blundell , S. Paine , L. Zeng

The hybrid pixel detectors used in the high energy physics experiments currently under construction use a three dimensional connection technique, the so-called bump bonding. As the pitch below 100um, required in these applications, cannot…

Instrumentation and Detectors · Physics 2009-11-11 Ch. Broennimann , F. Glaus , J. Gobrecht , S. Heising , M. Horisberger , R. Horisberger , H. C. Kaestli , J. Lehmann , T. Rohe , S. Streuli

The barrel part of the ATLAS pixel detector will consist of 112 carbon-carbon structures called "staves" with 13 hybrid detector modules being glued on each stave. The demands on the glue joints are high, both in terms of mechanical…

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