Author :
Bhatti, A. ; Canepa, A. ; Casarsa, M. ; Convery, M. ; Cortiana, G. ; Dell´Orso, M. ; Donati, S. ; Flanagan, G. ; Frisch, H. ; Fukun, T. ; Giannetti, P. ; Greco, V. ; Jones, M. ; Krop, D. ; Liu, T. ; Lucchesi, D. ; Pantano, D. ; Piendibene, M. ; Ristori, L
Abstract :
The CDF Run II level-2 calorimeter trigger is implemented in hardware and is based on a simple algorithm used in Run I. This system has worked well for Run II at low luminosity. However, as the Tevatron instantaneous luminosity increases, the limitation due to the simple algorithm starts to become clear. In this paper, we will present an upgrade path to the level-2 calorimeter trigger system at CDF. This upgrade approach is based on the Pulsar board, a general purpose VME board developed at CDF and used for upgrading both the level-2 tracking and the Level-2 global decision crate. This paper will describe the design, hardware and software implementation, as well as the advantages of this approach over the existing system.
Keywords :
nuclear electronics; particle calorimetry; particle tracks; trigger circuits; CDF; L2CAL subsystem; Tevatron; front end electronics; level-2 calorimeter trigger system; level-2 tracking; luminosity; Bandwidth; Data acquisition; Detectors; Event detection; Hardware; Mesons; Physics; Pipelines; Poles and towers; Software design;
