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Development of a new front-end electronics in Si and SiGe technology for the Resistive Plate Chamber (RPC) detector for high-rate experiments.

Pizzimento L., Rocchi A., Caltabiano A., Cardarelli R., Bruno S.
  Venerdì 15/09   09:00 - 12:00   Aula A208   I - Fisica nucleare e subnucleare
The Resistive Plate Chamber (RPC) detector front-end for high-rate experiments is being developed. A mixed technology in silicon and silicon-germanium is used in order to enhance its performances: a preamplifier in silicon with a very low inner noise (1000 $e^{-}$ rms) and a new kind of discriminator in SiGe technology with a threshold of the order of 1 mV. The main feature of this new kind of front-end is the great ability to discriminate the signal from the noise with a minimum threshold of few femtocoulombs. In this presentation the results of the simulation and the tests of the front-end will be shown, and the advantages and the huge rate capability gain that the RPC detector can achieve with this new front-end is discussed.