Signal reconstruction in a high rate environment for scintillator calorimeters

Author

Fullana, E. ; Castelo, J. ; Castillo, V. ; Cuenca, C. ; Ferrer, A. ; Higon, E. ; Iglesias, C. ; Munar, A. ; Poveda, J. ; Ruiz-Martinez, A. ; Salvachua, B. ; Solans, C. ; Teuscher, R. ; Valls, J.

Author_Institution

Dept. de Fisica Atomica, CSIC-Univ. de Valencia

fYear

2005

fDate

17-20 July 2005

Firstpage

25

Lastpage

28

Abstract

We present an algorithm to reconstruct online the energy in the TiCal detector of ATLAS. The algorithm consists in weighted sums of the digital samples of the photomultiplier signal. The weights are calculated to reconstruct the desired parameters of the signal 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 as it has been designed for

Keywords

calorimeters; nuclear electronics; particle calorimetry; photomultipliers; position sensitive particle detectors; scintillation counters; signal reconstruction; ATLAS; TiCal detector; charge injection calibration system; noise impact; photomultiplier signal; real physics data; scintillator calorimeters; signal reconstruction; Calibration; Detectors; Energy resolution; Photomultipliers; Physics; Signal reconstruction; Signal resolution; Signal to noise ratio; System testing; Working environment noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Statistical Signal Processing, 2005 IEEE/SP 13th Workshop on

Conference_Location

Novosibirsk

Print_ISBN

0-7803-9403-8

Type

conf

DOI

10.1109/SSP.2005.1628557

Filename

1628557