SSP'05 -- Proceedings

	IEEE/SP 13th workshop on Statistical Signal Processing July, 17-20, 2005 - Bordeaux - France

Information regarding the paper

Title

Signal Reconstruction in a High Rate Environment for Scintillator Calorimeters

Author(s)

Esteban Fullana

IFIC

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Abstract

We present an algorithm to reconstruct online the energy in the TileCal detector of ATLAS. The algorithm, a modification of an existing one for liquid ionization calorimeters, consists in weighted sums of the digital samples of the photomultiplier signal. The weights are calculated to reconstruct the desired parameters of the signal (amplitude and time information) while minimizing the noise impact on the resolution. The algorithm has been satisfactorily tested in two types of data, data obtained with a charge injection calibration system and real physics data. The results are promising given significant improvements specially when the signal to noise ratio is small.