Pierre Barroca
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View article: Safety and reliability assessment of CO2 refrigeration system for underground applications below -50 °C
Safety and reliability assessment of CO2 refrigeration system for underground applications below -50 °C Open
A new CO2 refrigeration concept is evaluated to cool the ATLAS and CMS experiments installed close to 100 m underground, at the Large Hadron Collider (LHC) at CERN. The first prototype unit produced to validate the conceptual design and to…
View article: A numerical study of the R744 primary cooling system for ATLAS and CMS LHC detectors
A numerical study of the R744 primary cooling system for ATLAS and CMS LHC detectors Open
A R744 (CO2) refrigeration system has been designed to cool down the Large Hadron Collider (LHC) silicon detectors ATLAS and CMS, located at CERN, Switzerland. The silicon detectors are subjected to high radiation levels. The system is com…
View article: An Ultra-Low Temperature Transcritical R744 Refrigeration System for Future Detectors at CERN LHC
An Ultra-Low Temperature Transcritical R744 Refrigeration System for Future Detectors at CERN LHC Open
The cooling systems of the future tracking detectors of the ATLAS and CMS experiments at the Large Hadron Collider (LHC) at CERN will be entirely based on CO2 refrigeration technology. The system is a booster refrigeration system, composed…
View article: Technical Design Report for the ATLAS Inner Tracker Pixel Detector
Technical Design Report for the ATLAS Inner Tracker Pixel Detector Open
This is the second of two Technical Design Report documents that describe the upgrade of the central tracking system for the ATLAS experiment for the operation at the High Luminosity LHC (HL-LHC) starting in the middle of 2026. At that tim…