Title :
High rate large dynamic range analog circuitry and digitizers for fast calorimetry
Author :
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.
Author_Institution :
CERN, Geneva, Switzerland
Abstract :
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 13500 channel system is being produced which will be put into operation in 1996
Keywords :
BiCMOS digital integrated circuits; analogue-digital conversion; detector circuits; krypton; liquid scintillation detectors; mixed analogue-digital integrated circuits; nuclear electronics; Kr; NA48 CP-violation experiment; digitizers; fast calorimetry; gain switching technology; high rate large dynamic range analog circuitry; liquid krypton calorimeter; mixed analog/digital ASIC; Calorimetry; Capacitors; Circuits; Detectors; Dynamic range; Energy resolution; Piecewise linear approximation; Pipelines; Preamplifiers; Sampling methods;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference Record, 1995., 1995 IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-3180-X
DOI :
10.1109/NSSMIC.1995.504258
