High rate large dynamic range analog circuitry and digitizers for fast calorimetry
IEEE T NUCL SCI 43:3 (1996) 1605-1609
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 13'500 channel system is being produced which will be put into operation in 1996.Performance of an electromagnetic liquid krypton calorimeter based on a ribbon electrode tower structure
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 370:2-3 (1996) 413-424
Abstract:
The NA48 collaboration is preparing a new experiment at CERN aiming to study CP violation in the K0-K0 system with an accuracy of 2 × 10-4 in the parameter ℛe(∈′/∈). Decays in two π0's will be recorded by a quasi-homogeneous liquid krypton calorimeter. A liquid krypton calorimeter has been chosen to combine good energy, position and time resolution with precise charge calibration and long-term stability. The prototype calorimeter incorporating the final design of the electrode read-out structure is presented in this paper. An energy resolution of ≃3.5%/√E with a constant term smaller than 0.5% has been obtained. The time resolution was found to be better than 300 ps above 15 GeV.A fully software-programmable pipelined trigger-processing module
(1996) 267-271
High rate large dynamic range analog circuitry and digitizers for fast calorimetry
(1996) 418-422
Measurement of the decay rate of the radiative K-e3(0) decay
369 (1996) 69-76