The NA48 experiment aims to measure direct CP Violation in the K-L(0) decays system with an accuracy of 2 x 10(-4). High performances are required to the trigger and acquisition systems. This paper describes the NA48 Trigger Supervisor, a 40 MHz pipelined hardware system which correlates and processes trigger informations from local trigger sources, searching for interesting patterns. The trigger packet include a timestamp information used by the readout systems to retrieve detector data. The design architecture and functionality during 98 data taking are described. (C) 2000 Elsevier Science B.V. All rights reserved.
The Trigger Supervisor of the NA48 experiment at CERN SPS
ARCIDIACONO, Roberta;MENICHETTI, Ezio
2000-01-01
Abstract
The NA48 experiment aims to measure direct CP Violation in the K-L(0) decays system with an accuracy of 2 x 10(-4). High performances are required to the trigger and acquisition systems. This paper describes the NA48 Trigger Supervisor, a 40 MHz pipelined hardware system which correlates and processes trigger informations from local trigger sources, searching for interesting patterns. The trigger packet include a timestamp information used by the readout systems to retrieve detector data. The design architecture and functionality during 98 data taking are described. (C) 2000 Elsevier Science B.V. All rights reserved.
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