Shinku
Online ISSN : 1880-9413
Print ISSN : 0559-8516
ISSN-L : 0559-8516
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Volume 25, Issue 10
Displaying 1-3 of 3 articles from this issue
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  • Basis of Quantitative Auger Aualysis
    Shingo ICHIMURA, Ryuichi SHIMIZU
    1982 Volume 25 Issue 10 Pages 645-659
    Published: October 20, 1982
    Released on J-STAGE: September 29, 2009
    DOIhttps://doi.org/10.3131/jvsj.25.645
    JOURNAL FREE ACCESS
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  • Research of High Current and Long Life Cathode for Ion Plating
    Joshin URAMOTO
    1982 Volume 25 Issue 10 Pages 660-670
    Published: October 20, 1982
    Released on J-STAGE: September 29, 2009
    DOIhttps://doi.org/10.3131/jvsj.25.660
    JOURNAL FREE ACCESS
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    It is pointed out that a lanthanium hexaboride LaB6 cathode is the most useful to produce a discharge plasma source for ion plating, which can be operated continuously at high current density (≥40 A/cm2) with long life times and can be exposed to air after use without deterioration. Next, how to use the LaB6 conveniently is discussed with various experimental processes. Then, it is required that the LaB6 cathode must be simple and strong mechanically, can start a gas discharge easily and can use stably in a magnetic field.
    After we tried to remove a W filament which heats the LaB6 initially and to improve demerits of the ordinary cylindrical type LaB6 cathode, we developed a disc LaB6 cathode with an assistant Ta pipe cathode which concentrates a pre-discharge (<10 A) into the cathode aperture and heats up the disc LaB6 indirectly to prepare for starting a higher current (10A300 A) discharge. This LaB6 cathode is very hopeful as an almighty cathode for ion plating.
    It should be also emphasized that an effective power supply is developed for this disc LaB6 cathode.
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  • Atomically Clean Surfaces of Brass Produced by Diamond Scratching in Auger Microprobe
    Katsuzo OKADA, Masao UEMURA, Akiyoshi OKITSU, Noboru TAKAHASHI
    1982 Volume 25 Issue 10 Pages 671-675
    Published: October 20, 1982
    Released on J-STAGE: September 29, 2009
    DOIhttps://doi.org/10.3131/jvsj.25.671
    JOURNAL FREE ACCESS
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    In situ observation by means of a scanning Auger microprobe of surfaces of brass produced by diamond tipindenting or scratching in UHV was carried out. The main results obtained are as follows.
    (1) The ratio of zinc to copper peak height remains nearly constant in spite of the indenting or scratchingcondition.
    (2) Clcan surfaces are not produced by indenting.
    (3) In case of scratching at a low speed of 0.1mm/s under loads heavier than 30 g (60kglmm2) in a vacuum better than10-8Pa, carbon and oxygen elements are not detected, and the surface composition is good agreement with the bulk one. That is, atomically clean surfaces of brass are created by diamond tip scratching.
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