Page 201 - Inorganic Mass Spectrometry - Fundamentals and Applications
P. 201

tt












         0        20      40                         100      I20      I40
       (a)





       IO2









                         1-

                          Cl'







                  20       40

            ur      Example of positive  and  negative  secondary  ion  mass   spectrometer (SIMS)
          mass spectra. An  l60- primary  beam of  l nA  at 15 keV was used for these spectra of  34'7
          and  304 stainless steels. (a) Positive ion spectrum  347 stainless steel; and (b) negative  ion
          spectrum 304 stainless steel. (From  Ref.  84.)
   196   197   198   199   200   201   202   203   204   205   206