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Results on 3D Pixel Sensors for the CMS Upgrade at the High Luminosity LHC
/ Ceccarelli, Rudy (INFN, Florence ; Florence U.)
/CMS Collaboration
The High Luminosity upgrade of the CERN Large Hadron Collider (HL-LHC) calls for new high-radiation tolerant silicon pixel sensors,
capable of withstanding, in the innermost tracker layer of the CMS experiment, fluences up to $1.5\times10^{16}\,\mathrm{n_{eq}cm^{-2}}$ (1 MeV equivalent neutrons) before being replaced.
An extensive R\&D; program aiming at 3D pixel sensors, built with a top-side only process, has been put in place in CMS in collaboration with FBK (Trento, Italy) and CNM (Barcelona, Spain) foundries.
The basic 3D cell size has an area of $25\times100$ $\mu\mathrm{m^2}$ and is connected to a readout chip through a single, central electrode.
A number of sensors were interconnected with the CMS pixel ReadOut Chip (CROC): built in 65\,nm technology, the chip will be used in the pixel tracker of the CMS experiment during HL-LHC operations.
In this paper the first test beam results of irradiated 3D CROC modules are reported.
The analysis of collected data shows excellent performance and hit detection efficiencies close to 99\% measured after a fluence of $1\times10^{16}\,\mathrm{n_{eq}cm^{-2}}$ while meeting the noise occupancy requirements of the innermost tracker layer..
CMS-CR-2023-008.-
Geneva : CERN, 2023 - 10 p.
- Published in : PoS Pixel2022 (2023) 046
Fulltext: PDF;
In : International Workshop on Semiconductor Pixel Detectors for Tracking and Imaging (PIXEL 2022), Santa Fe, USA, 11 - 16 Dec 2022, pp.046
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Characterization of 3D pixel sensors for the CMS upgrade at the High Luminosity LHC
/ Dinardo, Mauro (INFN, Milan Bicocca ; Milan Bicocca U.)
/CMS Collaboration
The High Luminosity upgrade of the CERN Large Hadron Collider (HL-LHC) calls for an upgrade of the CMS tracker detector to cope with the increased radiation fluence, $1.9\times10^{16}$~n$_{eq}$/cm$^2$ (1~MeV equivalent neutrons) for the innermost layer, while maintaining the excellent performance of the existing detector. An extensive R\ and D program, aiming at using 3D silicon pixel sensors, has been put in place by CMS in collaboration with FBK (Trento, Italy) and CNM (Barcelona, Spain) foundries. [...]
CMS-CR-2022-270.-
Geneva : CERN, 2024 - 9 p.
- Published in : JPS Conf. Proc. 42 (2024) 011012
Fulltext: PDF;
In : The International Workshop on Vertex Detectors (VERTEX 2022), Tateyama, Japan, 24 - 28 Oct 2022, pp.011012
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Position resolution with 25 $\mu$m pitch pixel sensors before and after irradiation
/ Ebrahimi, Aliakbar (PSI, Villigen) ; Feindt, Finn (Hamburg U.) ; Garutti, Erika (Hamburg U.) ; Gunnellini, Paolo (Hamburg U.) ; Hinzmann, Andreas Dominik (Hamburg U.) ; Niemeyer, Caroline (Hamburg U.) ; Pitzl, Daniel (DESY) ; Schwandt, Joern (Hamburg U.) ; Steinbrueck, Georg (Hamburg U.) ; Zoi, Irene (Hamburg U.)
Pixelated silicon detectors are state-of-the-art technology to achieve precise tracking and vertexing at collider experiments, designed to accurately measure the hit position of incoming particles in high rate and radiation environments.
The detector requirements become extremely demanding for operation at the High-Luminosity LHC, where up to 200 interactions will overlap in the same bunch crossing on top of the process of interest. [...]
CMS-NOTE-2021-006; CERN-CMS-NOTE-2021-006.-
Geneva : CERN, 2021 - 18 p.
Fulltext: PDF;
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A new generation of radiation hard 3D pixel sensors for the ATLAS upgrade
/ Terzo, Stefano (Barcelona, IFAE) ; Grinstein, Sebastian (Barcelona, IFAE ; ICREA, Barcelona) ; Manna, Maria (Barcelona, Inst. Microelectron.) ; Pellegrini, Giulio (Barcelona, Inst. Microelectron.) ; Quirion, David (Barcelona, Inst. Microelectron.)
The ATLAS experiment at the Large Hadron Collider (LHC) will replace its inner tracker system to cope with the extreme particle fluence expected after the High Luminosity upgrade of the accelerator (HL-LHC). The 3D silicon sensor technology has been selected as baseline to instrument the innermost layer of the pixel detector in the future ATLAS Inner Tracker (ITk). [...]
2020 - 4 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 982 (2020) 164587
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Radiation Resistant Innovative 3D Pixel Sensors for the CMS Upgrade at the High Luminosity LHC
/ Meschini, Marco (INFN, Florence)
/CMS Collaboration
An extensive R\&D; program aiming at radiation hard, small pitch, 3D
pixel sensors has been put in place % in CMS
between Istituto Nazionale di Fisica Nucleare (INFN, Italy) and
FBK Foundry (Trento, Italy).
The CMS experiment is supporting % profiting of these developments
the R\&D; in the scope of the Inner Tracker upgrade
for the High Luminosity phase
of the CERN Large Hadron Collider (HL-LHC).
In the HL-LHC the Inner Tracker
will have to withstand an integrated fluence up to
$2.3 \times 10^{16} \, \mathrm{n_{eq}/cm^2}$. [...]
CMS-CR-2020-039.-
Geneva : CERN, 2020 - 5 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 978 (2020) 164429
Fulltext: PDF;
In : 12th international "Hiroshima" Symposium on the Development and Application of Semiconductor Tracking Detectors (HSTD), Hiroshima, Japan, 14 - 18 Dec 2019, pp.164429
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