Different parts of a reflectron type time of flight mass spectrometer for a qualitative analysis of cometary gases were built by using the hard, laser and high temperature brazing techniques. The technical requirements for the ion body were ultra-high vacuum capability, high voltage capability and gold plated electrodes at a maximum body size of 30 mm x 45 mm. In order to achieve these requirements, alumina ceramic, molybdenum and niobium were jointed. The metals were jointed with the laser brazing technique using titanium as brazing filler material. Metal-alumina joints were relized with an indium-copper-silver alloy. By using a modified brazing device, geometrical and shape tolerances of less than 0,02 mm were obtained throughout the ion body.


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    Title :

    Präzisionsfügen durch Hart-, Hochtemperatur- und Laserlöten, am Beispiel von ionenoptischen Komponenten von Massenspektrometern für eine wissenschaftliche Weltraummission (Rosetta Rosina Mission der ESA)


    Additional title:

    Precision joining by brazing, high temperature and laser brazing on example of ion optics components of mass spectrometers for a scientific space mission (Rosetta Rosina for the ESA mission)


    Contributors:
    Zigerlig, B. (author) / Elsener, H.R. (author) / Piazza, D. (author) / Kiser, M. (author)


    Publication date :

    2001


    Size :

    4 Seiten, 7 Bilder, 4 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    German




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