The digital data acquisition chain and the cosmic ray trigger system for the SLD Warm Iron Calorimeter
The entire data-acquisition chain, from the custom-made front-end electronics to the Fastbus readout and data-reduction module, for the digital readout of the SLD limited streamer tube Warm Iron Calorimeter and Muon Identifier is described. Also described is a Fastbus Cosmic Logic Unit being developed to achieve the capability of reading cosmic ray events, also during the inter-crossing time, for apparatus monitoring and calibration purposes. 9 refs., 9 figs.
The front-end electronics and the fastbus readout module for the SLD limited streamer tubes
Abstract The front-end digital electronics and the Fastbus readout and data reduction module for limited streamer tube strips of the SLD warm iron calorimeter and muon tracker are described. A special high-sensitivity front-end hybrid has been developed to read strip information from limited streamer tubes working well below the limited streamer voltages. An MC68020-based Fastbus module to perform fast readout, zero suppression, cluster searching and apparatus monitoring has also been designed, built and tested.
ELECTRODELESS PLASTIC STREAMER TUBES
Abstract A new development of Plastic Streamer Tubes is obtained making use of the electrodeless drift chamber idea, This leads to a simplified construction, while performance remains practically unaffected. There are no relevant limitations on operating conditions.