Dr
Rachel Avramidou
(CERN and National Technical University of Athens)
17/09/2008, 11:00
Oral
The installation of the Large Hadron Collider (LHC) at CERN is completed. The magnets are installed and the emphasis is shifted to the commissioning. This work focuses on the commissioning of the cryogenic instrumentation. The LHC is a two-ring superconducting accelerator and pp collider of 27 km circumference.. The dipoles will operate at 8.3 T, cooled by superfluid helium at 1.9 K. The...
Dr
Juan Casas-Cubillos
(CERN)
17/09/2008, 11:25
Oral
The LHC optics is based in the extensive use of superconducting magnets covering 23 km inside the tunnel. The associated cryogenic system for keeping the magnets in nominal conditions is hence distributed all around the 27 km LHC tunnel and the cryogenic instrumentation submitted to the LHC radiation environment is composed of close to 18’000 sensors and actuators.
Radiation Tolerant (RadTol)...
Lucia Masetti
(Institut fur Physik)
17/09/2008, 11:50
Oral
The ATLAS Pixel Detector is the innermost detector
of the ATLAS experiment at the Large Hadron Collider at CERN.
Approximately 80 M electronic channels of the detector, made
of silicon, allow to detect particle tracks
and secondary vertices with very high precision.
After connection of cooling and services and verification of their operation the ATLAS Pixel Detector is now in the...
Dr
Alex Kluge
(CERN)
17/09/2008, 12:15
Oral
The ALICE Silicon Pixel Detector (SPD) constitutes the two innermost barrel layers of the ALICE experiment. The SPD is the detector closest to the interaction point, mounted around the beam pipe at r=3.9 cm and 7.6 cm, respectively. In order to reduce multiple scattering the material budget per layer in the active region has been limited to ≈1% X0. It consists of 120 hybrid silicon pixel...
Nicolo Cartiglia
(Univ. + INFN)
17/09/2008, 12:40
Oral
This talk reviews the CMS high resolution electromagnetic calorimeter (ECAL) on- and off-detector electronics and its commissioning within CMS in-situ. In particular it presents results on electronics noise, monitoring, dead channels and performance , together with the experience gained during installation. The talk will also include results from the first months of ECAL operation during...
Guy Perrot
(Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP))
17/09/2008, 13:05
Oral
The cryostats of the ATLAS LAr calorimeter system are installed in the ATLAS cavern since several
years. Following this, an effort to install and commission the front end read-out electronics
(infrastructure, crates, boards) has been ongoing and is finished now, in time for the cavern closure.
Following cautious procedures and with continuous testing-campaigns of the electronics at each...
