8th International Conference on Position Sensitive Detectors

Development of new Atlas Pixel front-end IC for upgraded LHC luminosity

5 Sept 2008, 10:40

50m

University of Glasgow

Board: 61

Poster Pixel Detectors for Charged Particles Poster Session 4 - Synchrotron Detectors and Pixel Detectors

Speaker

Dr Marlon Barbero (Physikalisches Institute, Universitaet Bonn)

Description

A new pixel Front-End (FE) IC is being developed in a 130nm technology for use in the upgraded Atlas pixel detector. The new pixel FE will be made of smaller pixels (50x250/200um vs. 50x400um for the present FE, FE-I3), a much improved active area over inactive area ratio, and a new analog pixel chain tuned for low power and new detector input capacitance. The higher luminosity for which this IC is tuned implies a complete redefinition of the digital architecture logic, which will not be based on End-of-Column data buffering but on local pixel logic and local pixel data storage. An overview of the new FE will be given with particular emphasis on the new digital logic architecture and possible architecture variations.