For the high luminosity era of the Large Hadron Collider (HL-LHC) it is foreseen to replace the current inner tracker of the ATLAS experiment with a new, all-silicon detector to cope with the occurring increase in occupancy, bandwidth and radiation damage. It will consist of an inner pixel and outer strip detector aiming to provide tracking coverage up to |η|=4. The layout of the pixel...
The HL-LHC upgrade planned to the LHC will reach peak luminosities of 5-7*10^{34} cm^{-2} s^{-1}. The total integrated luminosity will reach 3000 fb^{-1} by the end of 2037. This poses new challenges on the LHC detectors. The current CMS Tracker is already running beyond design specifications and will not be able to cope the HL-LHC radiation conditions. CMS will need a completely new Tracker...
In Dortmund, planar silicon pixel sensors were designed with modified n+ -implantations and produced in n+ -in-n sensor technology. Baseline for these new designs was the layout of the IBL planar silicon pixel sensor with a 250 μm × 50 μm pitch.
The different implantation shapes are intended to cause electrical field strength maxima to increase charge collection after irradiation and thus...
The planned upgrade to the LHC at CERN, known as the HL-LHC (High Luminosity Large Hadron Collider) is designed to maximise the physics potential through a sizable increase in luminosity. Consequently, with the increase in expected radiation damage, readout rates and granularity, a complete re-design of the current inner detectors at ATLAS and CMS are being developed.
The RD53 collaboration...
Abstract: Medipix (2010 - 2012) and Timepix (from 2013) pixel detector networks installed in ATLAS have proven valuable for the characterization of the radiation fields, determination of the induced radioactivity and dose rates at different places in ATLAS, as well as the measurement of luminosity [1][2]. In January 2018, four hybrid pixel detectors of Timepix3 technology (with 500 µm...
A highly performing muon system has been fundamental to achieve many of the physics results obtained by CMS during the LHC Run-2. The CMS muon spectrometer presently consists of three detector technologies covering different regions of pseudorapidity. Drift Tube chambers (DT) equip the CMS muon system barrel, whereas Cathode Strip Chambers (CSC) are installed the CMS end-caps; both are used...
The ATLAS experiment at the Large Hadron Collider is currently preparing for a major upgrade of the Inner Tracking for the Phase-II LHC operation (known as HL-LHC), scheduled to start in 2026. In order to achieve the integrated luminosity of 4000 fb$^{-1}$, the instantaneous luminosity is expected to reach unprecedented values, resulting in about 200 proton-proton interactions in a typical...
The upgrade of the LHC to the High-Luminosity LHC (HL-LHC) is expected to increase the current instantaneous luminosity by a factor of 5 to 7, providing the opportunity to study rare processes and precision measurement of the standard model parameters. To cope with the increase in pile-up (up to 200), particle density and radiation, CMS will build new silicon tracking devices with higher...
As part of the HL-LHC detector upgrade programme, the CMS experiment is developing a High Granularity Calorimeter (HGCAL) to replace the existing endcap calorimeters. The HGCAL will be realised as a sampling calorimeter, including 36 layers of silicon pads and 14 layers combining both silicon and scintillator detectors interspersed with metal absorber plates. Prototype modules based on 6-inch...
ATLAS is one of the four major experiments at the Large Hadron Collider (LHC) at CERN. It is a general-purpose particle physics experiment run by an international collaboration and is designed to exploit the full discovery potential and the huge range of physics opportunities that the LHC provides.
The tracking performance of the ATLAS detector relies critically on its 4-layer Pixel...
The CMS drift tubes (DT) muon detector, built for standing up the LHC expected integrated and instantaneous luminosities, will be used also in the High Luminosity LHC (HL-LHC) at a 5 times larger instantaneous luminosity and, consequently, much higher levels of radiation, reaching about 10 times the LHC integrated luminosity. Initial irradiation tests of a spare DT chamber at the CERN gamma...
The CMS muon system is built of different detector technologies: Drift Tube chambers (DT) and Cathode Strip Chambers (CSC) serve as tracking and triggering detectors respectively in the barrel and the end-caps of the spectrometer, whereas Resistive Plate Chambers (RPC) complement DT and CSC and are mostly used in the trigger. In addition, multiple layers of Gas Electron Multiplier (GEM)...
