Speaker
Ole Rohne
(University of Oslo (NO))
Description
The upgrades for the ATLAS Pixel Detector will be staged in preparation for high
luminosity LHC. The first upgrade for the Pixel Detector is the construction of a new
pixel layer which will be installed during the first shutdown of the LHC machine, in
2013-14. The new detector, called the Insertable B-layer (IBL), will be installed between
the existing Pixel Detector and a new, smaller radius beam-pipe at a radius of 3.3 cm.
The IBL has required the development of several new technologies to cope with
increased radiation and pixel occupancy and also to improve the physics performance
through reduction of the pixel size and a more stringent material budget. The IBL
presents several changes to the design of the present hybrid pixel system: two different
and promising silicon sensor technologies, planar n-in-n and 3D, will be used for the IBL.
A new read-out chip FE-I4 has been designed in 130 nm technology, the material budget
is minimized by using new lightweight mechanical support materials and a CO2 based
cooling system has been developed. An overview of the IBL project, of the module
design and the qualification for these sensor technologies with particular emphasis on
irradiation and beam tests will be presented.
Author
Ole Rohne
(University of Oslo (NO))
