Estimation of radiation effects in the front-end electronics of an ILC electromagnetic calorimeter
2008
The front-end electronics of the electromagnetic
calorimeterof an
International Linear Colliderdetector are situated in a radiation environment. This requires the effect of the radiation on the performance of the electronics, specifically FPGAs, to be examined. In this paper we study the flux, particle spectra and deposited doses at the front-end electronics of the electromagnetic
calorimeterof a detector at the ILC. We also study the occupancy of the electromagnetic
calorimeter. These estimates are compared with measurements, e.g. of the
radiation damageof FPGAs, done elsewhere. The outcome of the study shows that the radiation doses and the annual flux is low enough to allow today's FPGAs to operate. The
Single Event Upsetrate. however, lies between 14 min and 12 h depending on the FPGA used and therefore needs to be considered in the design of the data acquisition system of the electromagnetic
calorimeter. The occupancy is about 0.002 per bunch train not taking into account the effect of noise which depends on the choice of the detector. (C) 2008 Elsevier B.V. All rights reserved.
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