High rate large dynamic range analog circuitry and digitizers for fast calorimetry

High rate large dynamic range analog circuitry and digitizers for fast calorimetry

This paper describes the issues encountered in the design of a large dynamic range digitizer for calorimetry. A gain switching technology developed for the liquid krypton calorimeter of the NA48 CP-violation experiment at CERN is described in detail. 14 bit dynamic range and better than 300 ps time...

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Veröffentlicht in:IEEE Transactions on Nuclear Science 1996-06, Vol.43 (3), p.1605-1609
Hauptverfasser: Hallgren, B., Bal, F., Barr, G.D., Buchholz, P., Formenti, F., Funk, W., Kozhevnikov, Yu, Lacourt, A., Laverriere, G., Martini, M., Papi, A., Ponting, P., Sozzi, M., Vossnack, O., Wahl, H.
Format: Artikel
Sprache:eng
Schlagworte:
Calorimetry
Capacitors
Circuits
DESIGN
Detectors
Digital filters
DIGITIZERS
Dynamic range
Energy resolution
INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS
INTEGRATED CIRCUITS
IONIZATION CHAMBERS
Piecewise linear approximation
Preamplifiers
READOUT SYSTEMS
Sampling methods
SHOWER COUNTERS
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Beschreibung
Zusammenfassung:This paper describes the issues encountered in the design of a large dynamic range digitizer for calorimetry. A gain switching technology developed for the liquid krypton calorimeter of the NA48 CP-violation experiment at CERN is described in detail. 14 bit dynamic range and better than 300 ps time resolution were achieved in beam tests with an 8 channel prototype. A mixed analog/digital ASIC has been developed. A 13,500 channel system is being produced which will be put into operation in 1996.
ISSN:0018-9499
1558-1578
DOI:10.1109/23.507155