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  <ref-type name="Thesis">32</ref-type>
  <contributors>
    <authors>
      <author>Bröker, Hans-Bernhard</author>
      <author>Flügge, Günter</author>
    </authors>
    <subsidiary-authors>
      <author>100000</author>
    </subsidiary-authors>
  </contributors>
  <titles>
    <title>A slow-control system for the AMS-02 experiment on the International Space Station (ISS)</title>
  </titles>
  <periodical/>
  <publisher>Publikationsserver der RWTH Aachen University</publisher>
  <pub-location>Aachen</pub-location>
  <language>English</language>
  <pages>IV, 98 S. : Ill., graph. Darst.</pages>
  <number/>
  <volume/>
  <abstract>This thesis documents work done on the internal control and monitoring systemof the Alpha-Magnetic Spectrometer experiment, AMS-02: a complete, state-of-the-art high-energy physics experiment to be operated on the International Space Station for several years, to measure properties of cosmic rays with an unprecedented combination of precision and detection efficiency over a wide range of cosmic ray energies.As part of this ongoing effort, a group at this institute developed a central module of the network transporting commands and monitoring data between the central control computer of AMS and the hundreds of individual electronics modules: the “Universal Slow-Control Module”, or USCM for short. Hardware was designed, tested and and finally readied for small-scale mass-production at the facilities of a commercial partner. Since the USCM is for all means and purposes a complete, albeit small and not particularly powerful, computer, it needs a complete software environment to work, including a simple multi-tasking operating system, which was also written here.The main focus of my own contribution is on software development regarding thecommunication in the slow-control network connecting the USCM and the centralcommand nodes of AMS. This is based on “Controller Area Network”, or CAN,a very robust networking technique originally invented for use in automobiles.Therefore, following an introduction into the goals and background of the AMS-02 project, the various subsystems of the AMS-02 are each described individually to put the following discussions into context. Then the concepts and design of the Slow-Control system in general, and the USCM in particular, are explained, including considerations which are rather unusual for a high-energy physics experiment, and their consequences on both hardware and software design.Since the partner of the USCM wasn’t available to be used to test the USCM’sside of communications, my work was split into two major areas: the softwarerunning inside the Universal Slow Control Module (USCM), and the creation of aprogram to simulate its counterpart needed to be able to continuously check andexercise the capabilities of the USCM, as they are keep growing incrementally.  The bulk of this work thus describes the resulting software, and it does so in terms of the commands made available to the user of the test setup, and the data sent by these commands across the CAN bus connection.</abstract>
  <notes>
    <note>Aachen, Techn. Hochsch., Diss., 2004 ; </note>
  </notes>
  <label>PUB:(DE-HGF)11, ; 2, ; </label>
  <keywords/>
  <accession-num/>
  <work-type>Dissertation / PhD Thesis</work-type>
  <dates>
    <pub-dates>
      <year>2006</year>
    </pub-dates>
  </dates>
  <accession-num>RWTH-CONV-122340</accession-num>
  <year>2006</year>
  <urls>
    <related-urls>
      <url>https://publications.rwth-aachen.de/record/60639</url>
    </related-urls>
  </urls>
</record>

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