Neutron and proton tests of different technologies for the upgrade of cold readout electronics of the ATLAS Hadronic End-cap Calorimeter
Abstract
The expected increase of total integrated luminosity by a factor ten at the HL-LHC compared to the design goals for LHC essentially eliminates the safety factor for radiation hardness realized at the current cold amplifiers of the ATLAS Hadronic End-cap Calorimeter (HEC). New more radiation hard technologies have been studied: SiGe bipolar, Si CMOS FET and GaAs FET transistors have been irradiated with neutrons up to an integrated fluence of 2.2 . 1016 n/cm2 and with 200 MeV protons up to an integrated fluence of 2.6 . 1014 p/cm2. Comparisons of transistor parameters such as the gain for both types of irradiations are presented.
- Publication:
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Journal of Physics Conference Series
- Pub Date:
- December 2012
- DOI:
- 10.1088/1742-6596/404/1/012062
- arXiv:
- arXiv:1208.1989
- Bibcode:
- 2012JPhCS.404a2062N
- Keywords:
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- Physics - Instrumentation and Detectors;
- High Energy Physics - Experiment
- E-Print:
- 5 pages, ICATPP 2011 Conference Proceedings