Radiation qualification of the front-end electronics for the readout of the ATLAS liquid argon calorimeters

• The ATLAS detector has been built to study the reactions produced by the Large Hadron Collider (LHC). ATLAS includes a system of liquid argon calorimeters for energy measurements. The electronics for amplifying, shaping, sampling, pipelining, and digitizing the calorimeter signals is implemented on a set of front-end electronic boards. The front-end boards are installed in crates mounted between the calorimeters, where they will be subjected to significant levels of radiation during LHC operation. As a result, all components used on the front-end boards had to be subjected to an extensive set of radiation qualification tests. This paper describes radiation-tolerant designs, radiation testing, and radiation qualification of the front-end readout system for the ATLAS liquid argon calorimeters.

Nyckelord

Radiation damage to electronic components

Front-end electronics for

detector readout

Calorimeters

programmable gate arrays

low-dose-rates

integrated-circuits

neutron-irradiation

bicmos technology

enhanced damage

devices

silicon

energy

design

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