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Radiation detectors built in high-voltage and high-resistivity CMOS technology are an interesting option for the large area pixel trackers sought for the upgrade of the Large Hadron Collider experiments. A possible architecture is a hybrid design, where CMOS sensors are readout by front-end electronics coupled through a thin dielectric layer. A critical requirement is the radiation hardness of both...
As the LHC luminosity is ramped up to 3×1034 cm-2 s-1 and beyond, the high rates, multiplicities, and energies of particles seen by the detectors will pose a unique challenge. Only a tiny fraction of the produced collisions can be stored on tape and immense real-time data reduction is needed. An effective trigger system must maintain high trigger efficiencies for the physics we are most interested...
With this work we present the activity and performance optimization of the Italian computing centers supporting the ATLAS experiment forming the so-called Italian Cloud. We describe the activities of the ATLAS Italian Tier-2s Federation inside the ATLAS computing model and present some Italian original contributions. We describe StoRM, a new Storage Resource Manager developed by INFN, as a replacement...
The innermost part of the ATLAS (A Toroidal LHC Apparatus ) experiment at the LHC (Large Hadron Collider), CERN (Conseil Eurpeenne pour la Recherche Nucleaire), is a pixel detector. To operate the readout electronics and other detector components, a complex power supply and control system is necessary. The paper describes one of the components of which the power supply system is made of: the remotely...
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