The ATLAS Insertable B-Layer (IBL) design, production and integration challenges

Javier Bilbao de Mendizabal, Giuseppe Iacobucci

Abstract

For Run-2 of the LHC a fourth, innermost Pixel Detector layer on a smaller radius beam pipe has been installed in the ATLAS Detector to add redundancy against radiation damage of the current Pixel Detector and to ensure a high quality tracking and b-tagging performance of the Inner Detector over the coming years until the High Luminosity Upgrade. To improve the overall physics performance of the ATLAS detector, a local support structure in carbon fiber has been developed with an overall planarity of 350μm, targeting for a low material budget subdetector with a total radiation length of only 1.5 Xo. An overview of the new sub-detector called the Insertable B-layer (IBL) will be given, followed by the stave loading process with focus on the stave planarity metrology measurements and module positioning precision. Metrologies surveys on the IBL Support Tube and final package after stave integration will been shown.

Keywords

IBL, ATLAS, Pixel, Upgrade, Production

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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