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  • Detector Calibration  (1)
  • software visualisation  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Batse spectroscopy detector calibration (1992)
    Springer
    Experimental astronomy 2 (1992), S. 307-330 
    Details
    ISSN: 1572-9508
    Keywords: BATSE Spectroscopy Detector ; Detector Calibration ; Gamma Ray Detector ; Gamma Ray Burst
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We describe the channel-to-energy calibration of the Spectroscopy Detectors of the Burst and Transient Source Experiment (BATSE) on the Compton Gamma Ray Observatory (GRO). These detectors consist of NaI(Tl) crystals viewed by photomultiplier tubes whose output in turn is measured by a pulse height analyzer. The calibration of these detectors has been complicated by frequent gain changes and by nonlinearities specific to the BATSE detectors. Nonlinearities in the light output from the NaI crystal and in the pulse height analyzer are shifted relative to each other by changes in the gain of the photomultiplier tube. We present the analytical model which is the basis of our calibration methodology, and outline how the empirical coefficients in this approach were determined. We also describe the complications peculiar to the Spectroscopy Detectors, and how our understanding of the detectors' operation led us to a solution to these problems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00690088
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Language visualisation: Applications and theoretical foundations of a primitive-based approach (1995)
    Springer
    Artificial intelligence review 9 (1995), S. 215-235 
    Details
    ISSN: 1573-7462
    Keywords: language visualisation ; software visualisation ; visualisation theory ; language animation ; primitive-based visualisation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract Language visualisation consists of using consistent and systematic mappings between language expressions and graphical forms, where the graphical forms constitute or convey the meaning of the expressions. Primitive-based applications are described for both natural and artificial language (story visualisation and program visualisation, respectively). On the basis of these and other applications some foundational concepts are identified in a bottom-up theory of visualisation. A universal visualisation system architecture is proposed, as is a basic visual object taxonomy for classifying any visualisation object. Also, preliminary steps are taken towards constructing a top-down theory.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00849181
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    Paper (German National Licenses)
    Fulltext
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