130 research outputs found
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Monolithic readout circuits for RHIC
No full textSeveral CMOS ASICs have been developed for a proposed RHIC experiment. This paper discusses why ASIC implementation was chosen for certain functions, circuit specifications and the design techniques used to meet them, and results of simulations and early prototypes. By working closely together from an early stage in the planning process, in-house ASIC designers and detector and data acquisition experimenters can achieve optimal use of this important technology
Development of the front end electronics for the ZEUS high resolution calorimeter
No full textThe development and design of the pipelined data acquisition system for the high-resolution ZEUS calorimeter are described. Details of the front-end analog card and its performance are presented. A description of the custom pipeline and buffer multiplexer chips is given, along with test results for the pipeline chip. In addition, some results are presented for a CCD (charge-coupled device) test system built to evaluate the pipeline principles using the ZEUS calorimeter prototype at the CERN PS
Development of the front end electronics for the ZEUS high resolution calorimeter
No full textS.465-470The development and design of the pipeline data aquisition system for the high resolution ZEUS calorimeter is described. Details of the front and analog card and the performance are given. A description of the custom pipeline and buffer multiplexer chips is given, analog with test results for the pipeline chip. In addition, some results are presented for a CCD test system built to evaluate the pipeline principles using the ZEUS calorimeter prototype at the CERN PS.36Nr.
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Readout electronics for a High-Rate CSC detector
No full textA readout system for a high-rate muon Cathode Strip Chamber (CSC) is described. The system, planned for use in the forward region of the ATLAS muon spectrometer, uses two custom CMOS integrated circuits to achieve good position resolution at a flux of up to 2,500 tracks/cm{sup 2}/s
Praxisbeispiele Multimedia Software GmbH und Württembergische Versicherung AG - Werkzeuge für Wissensinfrastrukturen
No full textS.133-150Die zentrale Herausforderung für das Wissensmanagement ist es, nach Lösungen zu suchen, den spiralförmigen Prozess der Verbesserung von Eigenschaften, Fähigkeiten und der Wissensdynarnik im Unternehmen zu beschleunigen. Die kommunikativen und kooperativen Möglichkeiten von Computernetzwerken und computerunterstützten Werkzeugen sind einer dieser Lösungswege: "The Computer is a tool, one destined to be more important than the printing press. But its real worth is that it makes possible to augment the ways people bring brainpower to bear on complex problems" (Thomas A. Stewart 1996). Das Konzept der "Knowledge Infrastructure" soll es dabei ermöglichen, alle Akteure im Unternehmen in die Lage zu versetzen, ihre Kreativität, ihr Wissen und ihre Fähigkeiten in die Unternehmensprozesse und in die Unternehmensentwicklung einzubringen und sich am Untemehmenserfolg zu beteiligen. Der folgende Beitrag zeigt zwei Lösungsansätze aus der Praxis
Use of a parallel, pipelined, event processor in a massive dimuon experiment
No full textWe have constructed and operated a high-speed parallel pipelined event processor, used to trigger data acquisition in a massive muon pair experiment at Fermilab. The processor is constructed of simple, general-purpose modules designed to operate on 16-bit data words synchronously and in parallel at speeds up to 40 MHz. It uses information from hodoscopes and wire chambers to reconstruct tracks in the bend view of a magnetic spectrometer, calculating an approximation to transverse momentum (pt) for each track and mass for the most massive pair in an event. Its algorithm is designed to find tracks originating in the target and reject tracks originating in the beam dump. Under typical running conditions, the processor rejects over 80% of lower-level triggers, while maintaining efficiency near 90% for massive muon pairs produced in the target.</p
Radiation tolerant ASIC for controlling switched-capacitor arrays
No full textWe describe a radiation-tolerant controller used to control switched- capacitor arrays. The controller has been developed for the liquid argon calorimeter of the ATLAS detector. Radiation tolerance has been achieved by applying layout, circuit, and system mitigation techniques to a commercial 0.25 mum complementary metal-oxide semiconductor technology. 22 Refs
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