Is Microanalysis Possible in He+ Ion Microscopes?
نویسندگان
چکیده
منابع مشابه
Secondary ion microanalysis of fluorine in apatites of biological interest.
A Cameca IMS 300 ion analyzer has been used to measure fluorine concentrations in tooth material. Samples of human and shark teeth were studied. Negative oxygen primary ions produce secondary mass spectra in which positive as well as negative fluorine ion peaks are well re presented. With constant measuring conditions, the reproducibility of the F/Ca ion ratios is satis factory. Fluorine conc...
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the celebrated poem of ahmad hatif of isfahn, known in persian as the hatefâs tarjiband is studied in the present paper from a historical point of view to reveal the status of this poet in persian poetry, as well as its mystical content. first a short history of tarjiband as a poetic form is revised, then the sixteen poets who have written a mystical tarjiband are presented. all of these tarj...
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The Stokes drift argument put forth by Coy et al. (1986) to explain the monthly mean downward vertical velocities observed in the summer polar mesosphere by radars is critically re-exanfined. The size of the effect is quite sensitive to the choice of gravity wave wavenumber and phase speed. We reproduce the Coy et al. (1986) result for a monochromatic gravity wave and then generalize to a Garre...
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ژورنال
عنوان ژورنال: Microscopy and Microanalysis
سال: 2010
ISSN: 1431-9276,1435-8115
DOI: 10.1017/s143192761005378x