Author: Manduchi, G.
Paper Title Page
S10TS07 The Timing System of the RFX Nuclear Fusion Experiment 367
 
  • V. Schmidt, G. Flor, G. Manduchi, I. Piacentini
    Consorzio RFX, Associazione Euratom-ENEA sulla Fusione, Padova, Italy
  • V. Schmidt
    HMI, Berlin, Germany
 
  The RFX Nuclear Fusion Experiment in Padova, Italy, employs a distributed system to produce precision trigger signals for the fast control of the experiment and for the experiment-wide synchronization of data acquisition channels. The hardware of the system is based on a set of CAMAC modules. The modules have been integrated into a hardware/software system which provides the following features: # generation of pre-programmed timing events, # distribution of asynchronous (not pre-programmed) timing events, # gating of timing event generation by Machine Protection System, # automatic stop of timing sequence in case of highway damage, # dual-speed timebase for transient recorders, # system-wide precision of ¿3 ¿s, time resolution ¿ l0 ¿s. The operation of the timing system is fully integrated into the RFX data acquisition system software. The Timing System Software consists of three layers: the lowest one corresponds directly to the CAMAC modules, the intermediate one provides pseudo-devices which essentially correspond to specific features of the modules (e.g. a dual frequency clock source for transient recorders), the highest level provides system set-up support. The system is fully operational and was first used during the commissioning of the RFX Power Supplies in spring ’91.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S10TS07  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
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