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View article: Geostationary electron dynamics: ICARE_NG<sup>2</sup> observations and new analytical model of daily electron fluxes driven by solar wind conditions
Geostationary electron dynamics: ICARE_NG<sup>2</sup> observations and new analytical model of daily electron fluxes driven by solar wind conditions Open
The effects of the space radiation on spacecraft materials and devices are significant design considerations for space missions. In order to meet these challenges, the radiation environment must be understood. Measuring energetic particles…
View article: Design and construction of the ATLAS High-Granularity Timing Detector
Design and construction of the ATLAS High-Granularity Timing Detector Open
The increase of the particle flux (pile-up) at the HL-LHC with instantaneous luminosities up to $\\mathrm{L\\sim}$ \\SI{7.5e34}{\\neqcm{}} will have a severe impact on the ATLAS detector reconstruction and trigger performance. The end-cap …
View article: ATLAS ITk Pixel Pre-production Planar Sensor Characterisation for the HL-LHC Upgrade
ATLAS ITk Pixel Pre-production Planar Sensor Characterisation for the HL-LHC Upgrade Open
In the ATLAS detector upgrade for the High-Luminosity LHC (HL-LHC), the current Inner Detector will be replaced with an all-silicon Inner Tracker (ITk), to operate under higher occupancy (instantaneous luminosity $7.5\\times10^{34}\\;\\rm …
View article: Performance of radiation hard 3D pixel sensors for the upgrade of the ATLAS Inner Tracker
Performance of radiation hard 3D pixel sensors for the upgrade of the ATLAS Inner Tracker Open
The Inner Detector of the ATLAS experiment at CERN will be replaced by a completely new Inner Tracker (ITk) to exploit the performance of the High Luminosity upgrade of the LHC accelerator (HL-LHC). The new detector will have to operate in…
View article: Performance in beam tests of irradiated Low Gain Avalanche Detectors for the ATLAS High Granularity Timing Detector
Performance in beam tests of irradiated Low Gain Avalanche Detectors for the ATLAS High Granularity Timing Detector Open
The High Granularity Timing Detector (HGTD) will be installed in the ATLAS detector to mitigate pile-up effects during the High Luminosity (HL) upgrade of the Large Hadron Collider (LHC) at CERN. The design of the HGTD is based on the use …
View article: Novel 3D Pixel Sensors for the Upgrade of the ATLAS Inner Tracker
Novel 3D Pixel Sensors for the Upgrade of the ATLAS Inner Tracker Open
The ATLAS experiment will undergo a full replacement of its inner detector to face the challenges posed by the High Luminosity upgrade of the Large Hadron Collider (HL-LHC). The new Inner Tracker (ITk) will have to deal with extreme partic…
View article: ATLAS ITk Pixel Detector Overview
ATLAS ITk Pixel Detector Overview Open
For the HL-LHC upgrade the current ATLAS Inner Detector is replaced by an all-silicon system. The Pixel Detector will consist of 5 barrel layers and a number of rings, resulting in about 14 $\\mathrm{m^2}$ of instrumented area. Due to the …
View article: Radiation hard Depleted Monolithic Active Pixel Sensors with high-resistivity substrates
Radiation hard Depleted Monolithic Active Pixel Sensors with high-resistivity substrates Open
High Voltage/High resistivity Depleted Monolithic Active Pixel Sensors (HV/HR-DMAPS) is a technology which is becoming of great interest for high energy physics applications.With respect to hybrid pixel detectors the monolithic approach of…
View article: Test beam measurement of ams H35 HV-CMOS capacitively coupled pixel sensor prototypes with high-resistivity substrate
Test beam measurement of ams H35 HV-CMOS capacitively coupled pixel sensor prototypes with high-resistivity substrate Open
In the context of the studies of the ATLAS High Luminosity LHC programme, radiation tolerant pixel detectors in CMOS technologies are investigated. To evaluate the effects of substrate resistivity on CMOS sensor performance, the H35DEMO de…
View article: Design and characterization of the monolithic matrices of the H35DEMO chip
Design and characterization of the monolithic matrices of the H35DEMO chip Open
The H35DEMO chip is a HV/HR-MAPS demonstrator of 18.49 mm x 24.4 mm, fabricated with a 0.35 µm HVCMOS process from AMS in four different substrate resistivities. The chip is divided into four independent matrices with a pixel size of 50 µm…
View article: Fermilab Test Beam Facility Annual Report FY17
Fermilab Test Beam Facility Annual Report FY17 Open
This Technical Memorandum (TM) summarizes the Fermilab Test Beam operations for FY2017. It is one of a series of annual publications intended to gather information in one place. In this case, the information concerns the individual experim…
View article: Test beam measurement of ams H35 HV-CMOS capacitively coupled pixel sensor prototypes with high-resistivity substrate
Test beam measurement of ams H35 HV-CMOS capacitively coupled pixel sensor prototypes with high-resistivity substrate Open
In the context of the studies of the ATLAS High Luminosity LHC programme, radiation tolerant pixel detectors in CMOS technologies are investigated. To evaluate the effects of substrate resistivity on CMOS sensor performance, the H35DEMO de…
View article: The Phase-II ATLAS ITk pixel upgrade
The Phase-II ATLAS ITk pixel upgrade Open
The entire tracking system of the ATLAS experiment will be replaced during the LHC Phase~2 shutdown (foreseen to take place around 2025) by an all-silicon detector called the ``ITk'' (Inner Tracker). The innermost portion of ITk will consi…
View article: Radiation hardness of small-pitch 3D pixel sensors up to HL-LHC fluences
Radiation hardness of small-pitch 3D pixel sensors up to HL-LHC fluences Open
A new generation of 3D silicon pixel detectors with a small pixel size of 50$\times$50 and 25$\times$100 $μ$m$^{2}$ is being developed for the HL-LHC tracker upgrades. The radiation hardness of such detectors was studied in beam tests afte…
View article: Characterisation of novel prototypes of monolithic HV-CMOS pixel detectors for high energy physics experiments
Characterisation of novel prototypes of monolithic HV-CMOS pixel detectors for high energy physics experiments Open
An upgrade of the ATLAS experiment for the High Luminosity phase of LHC is planned for 2024 and foresees the replacement of the present Inner Detector (ID) with a new Inner Tracker (ITk) completely made of silicon devices. Depleted active …
View article: Studies of irradiated AMS H35 CMOS detectors for the ATLAS tracker upgrade
Studies of irradiated AMS H35 CMOS detectors for the ATLAS tracker upgrade Open
Silicon detectors based on the HV-CMOS technology are being investigated as possible candidate for the outer layers of the ATLAS pixel detector for the High Luminosity LHC. In this framework the H35Demo ASIC has been produced in the 350 nm…
View article: Test beam evaluation of newly developed n-in-p planar pixel sensors for use in a high radiation environment
Test beam evaluation of newly developed n-in-p planar pixel sensors for use in a high radiation environment Open
Radiation-tolerant n-in-p planar pixel sensors have been under development in cooperation with Hamamatsu Photonics K.K. (HPK). This is geared towards applications in high-radiation environments, such as for the future Inner Tracker (ITk) p…