15533358
CMS barrel pixel detector overview
Abstract The pixel detector is the innermost tracking device of the CMS experiment at the LHC. It is built from two independent subdevices, the pixel barrel and the end disks. The barrel consists of three concentric layers around the beam pipe with mean radii of 4.4, 7.3 and 10.2 cm. There are two end disks on each side of the interaction point at ± 34.5 and ± 46.5 cm . This article gives an overview of the pixel barrel detector, its mechanical support structure, electronics components, services and its expected performance.
108217011
Upgrade of the CMS Pixel Detector
110534485
Building Detector Modules for the (S)CMS Pixel Barrel Detector
For the barrel part of the CMS pixel tracker about 800 silicon pixel detector modules are required. The modules are bump bonded, assembled and tested at the Paul Scherrer Institute. This article gives the production results of the module assembly for the CMS experiment and shows the evolution of the barrel pixel module design for the first phase of the LHC luminosity upgrade.
109648920
Assembly of the CMS pixel barrel modules
For the barrel part of the CMS pixel tracker about 800 silicon pixel detector modules are required. The modules are bump bonded, assembled and tested at the Paul Scherrer Institute. This article describes the assembly procedure that will be used to build these modules.
121630600
THE CMS TRACKER ALIGNMENT SYSTEM
118773183
Hybridization issues for future applications
17874828
High-frequency VLBI observations of Sgr A* during a multi-frequency campaign in May 2007
In May 2007 the compact radio source Sgr A* was observed in a global multi-frequency monitoring campaign, from radio to X-ray bands. Here we present and discuss first and preliminary results from polarization sensitive VLBA observations, which took place during May 14-25, 2007. Here, Sgr A* was observed in dual polarization on 10 consecutive days at 22, 43, and 86 GHz. We describe the VLBI experiments, our data analysis, monitoring program and show preliminary images obtained at the various frequencies. We discuss the data with special regard also to the short term variability.
58925329
Multiwavelength VLBI observations of Sagittarius A
Context. The compact radio, NIR, and X-ray source Sagittarius A* (Sgr A*), associated with the super massive black hole at the center of the Galaxy, has been studied with Very Long Baseline Interferometry (VLBI) observations performed on 10 consecutive days and at mm-wavelength.