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2008201120142017202001234
Abstract: (Elsevier)
The Karlsruhe Tritium Neutrino experiment (KATRIN) is going to use a very large electro-static tandem spectrometer to measure the electron spectrum from the tritium beta decay, where several kilometers of non-evaporable getter (NEG) strips (type ST707) are to be used to achieve the UHV requirements. Different geometrical configurations of the NEG strips have been studied by Monte Carlo simulations. It is shown that the resulting pumping speed of the getter pumps will allow to get a pressure below 10 −11 mbar in the huge vessel with a volume of 1400 m 3 . By systematic assessment of the statistics of the pumping surfaces, it could be demonstrated that the design is sound.
  • Non-evaporable getter (NEG)
  • Monte Carlo simulation
  • Pumping speed
  • vacuum system
  • numerical calculations: Monte Carlo
  • gas: pressure
  • [1]

    Collaboration
    •
    et al.
  • [2]
    The Nobel Prize Internet Archive,Nobel Prize in Physics
  • [3]
    KATRIN Collaboration, KATRIN design report
  • [4]
    Day Ch, Habermehl F, Luo X, Wolf J. Outgassing measurements with a prototype for a large UHV spectrometer. In: 2nd International Symposium on Hydrogen in Matter (ISOHIM), Uppsala, Sweden, June, American Institute of Physics, accepted for publication
    • Bornschein L
  • [5]
    Carlo-Simulation der Molekelbewegung und der Wärmestrahlung in Vakuum-Behältern-Rechenprogramm MOVAK3D. Forschungszentrum Karlsruhe Scientific Report # KfK 4292
    • Class G. 3D Monte
  • [6]
    SAES getters: Technical specification of ST707