Page 211 - Inorganic Mass Spectrometry - Fundamentals and Applications
P. 211

Secondary  Ion  Mass  Spectrometry




















          ACCElER  ATOR
           ElK~QDE




          CfSlUM
          IONS
                               IONlZER    FEED  ?U@€    UJW  W  U
                                HEATER     HEATER           RESERVOIR
                                                             ~EA?ER
                l0ROUS TUNOSTEN  ?WO
         Figure 32  Cesium  ion  source  schematic.  (From  Ref. 82.)














                   U


         -P

                  (a)
         Figure 33  Liquid-metal ion source  of  Okutani  et  al.  With  movable  tip  and reservoir.
         (From  Ref. 109.)
   206   207   208   209   210   211   212   213   214   215   216