C. Sawyer
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View article: Silicon wafer fracture stress for tracking sensors in particle physics experiments
Silicon wafer fracture stress for tracking sensors in particle physics experiments Open
For the construction of the ATLAS Inner Tracker strip detector, silicon strip sensor modules are glued directly onto carbon fibre support structures using a soft silicone gel. During tests at temperatures below -35°C, several of the sensor…
View article: First stave results towards mitigating sensor fracturing with interposers in the ATLAS ITk strips barrel
First stave results towards mitigating sensor fracturing with interposers in the ATLAS ITk strips barrel Open
At the conclusion of Run 3 of the Large Hadron Collider (LHC) at CERN, the accelerator complex will be upgraded to the High-Luminosity LHC (HL-LHC), allowing it to increase the dataset sizes of LHC experiments by about a factor of 20. This…
View article: Threshold bounce — occupancy-dependent modulation of the discriminating threshold in silicon detectors
Threshold bounce — occupancy-dependent modulation of the discriminating threshold in silicon detectors Open
The front-end electronics of silicon detectors are typically designed to ensure optimal noise performance for the expected input charge. A combination of preamplifiers and shaper circuits result in a nontrivial response of the front-end to…
View article: Test beam measurement of ATLAS ITk Short Strip module at warm and cold operational temperature
Test beam measurement of ATLAS ITk Short Strip module at warm and cold operational temperature Open
This study is focused on an investigation of the performance of the Short Strip module developed by the ATLAS Inner Tracker (ITk) strip collaboration using electron beams of energy 5.4 GeV and 5.8 GeV at the DESY-II Testbeam Facility. The …
View article: Test beam measurement of ATLAS ITk Short Strip module at warm and cold operational temperature
Test beam measurement of ATLAS ITk Short Strip module at warm and cold operational temperature Open
This study is focused on an investigation of the performance of the Short Strip module developed by the ATLAS Inner Tracker (ITk) strip collaboration using electron beams of energy 5.4 GeV and 5.8 GeV at the DESY-II Testbeam Facility. The …
A Starry Byte — proton beam measurements of single event upsets and other radiation effects in ABCStar ASIC Versions 0 and 1 for the ITk strip tracker Open
Single Event Effects (SEEs) — predominately bit-flips in electronics caused by particle interactions - are a major concern for ASICs operated in high radiation environments such as ABCStar ASICs, which are designed to be used in the future…
Development of the front end amplifier circuit for the ATLAS ITk silicon strip detector Open
We present the development of the front end amplifier circuit for the ABCStar readout ASIC designed for the upgraded ATLAS Inner Tracker (ITk) detector. The amplifier is intended to work with silicon strip sensors of moderate length betwee…
View article: The Solar Orbiter SPICE instrument -- An extreme UV imaging spectrometer
The Solar Orbiter SPICE instrument -- An extreme UV imaging spectrometer Open
The Spectral Imaging of the Coronal Environment (SPICE) instrument is a\nhigh-resolution imaging spectrometer operating at extreme ultraviolet (EUV)\nwavelengths. In this paper, we present the concept, design, and pre-launch\nperformance o…
View article: The Solar Orbiter SPICE instrument
The Solar Orbiter SPICE instrument Open
Aims. The Spectral Imaging of the Coronal Environment (SPICE) instrument is a high-resolution imaging spectrometer operating at extreme ultraviolet wavelengths. In this paper, we present the concept, design, and pre-launch performance of t…
Investigations into the effect of gamma irradiation on the leakage current of 130-nm readout chips for the ATLAS ITk strip detector Open
Central to the design of any detector system is a detailed understanding of the current and power dissipation due to the implications on power-supply design, thermal management and mechanical stability. It is well documented that certain 1…
View article: ATLAS ITk Short-Strip Stave Prototypes with 130 nm Chipset
ATLAS ITk Short-Strip Stave Prototypes with 130 nm Chipset Open
The ATLAS ITk Collaboration is working to deliver a new Inner Tracking detector for use at HL-LHC. The strip tracker community has recently constructed a partially loaded, double-sided demonstrator stave using the HCC / ABC130 chipset in 1…
Characterization of a prototype batch of long polyimide cables designed for fast data transmission on ATLAS ITk strip staves Open
The silicon-strip system in the ATLAS ITk detector has individual sensor modules mounted on staves to provide integrated solution for mechanical support, power, cooling, and data transmission. The data and power are transmitted to individu…
View article: Prototype Strip Barrel Modules for the ATLAS ITk Strip Detector
Prototype Strip Barrel Modules for the ATLAS ITk Strip Detector Open
The module design for the Phase II Upgrade of the new ATLAS Inner Tracker (ITk) detector at the LHC employs integrated low mass assembly using single-sided flexible circuits with readout ASICs and a powering circuit incorporating control a…
View article: Lessons learned in high frequency data transmission design: ATLAS strips bus tape
Lessons learned in high frequency data transmission design: ATLAS strips bus tape Open
Requirements of HEP experiments lead to highly integrated systems with many electrical, mechanical and thermal constraints. A complex performance optimisation is therefore required. High speed data transmission lines are designed using cop…
View article: Investigations into the impact of bond pads and p-stop implants on the detection efficiency of silicon micro-strip sensors
Investigations into the impact of bond pads and p-stop implants on the detection efficiency of silicon micro-strip sensors Open
The High Luminosity Upgrade of the LHC will require the replacement of the Inner Detector of ATLAS with the Inner Tracker (ITk) in order to cope with higher radiation levels and higher track densities. Prototype silicon strip detector modu…