Beam deflection magnetic

Figure Bl.7.4. Schematic diagram of a reverse geometry (BE) magnetic sector mass spectrometer ion source (1) focusing lens (2) magnetic sector (3) field-free region (4) beam resolving slits (5) electrostatic sector (6) electron multiplier detector (7). Second field-free region components collision cells (8) and beam deflection electrodes (9).

Because of its lower beam energy, a LEIS ion source is much more compact than an accelerator for MeV ions, but it has the same purpose - to provide a beam of ions with well defined energy and mass. In LEIS, the latter demand is fulfilled by a Wien filter that selects ions of one specific mass, as does the deflection magnet in RBS. In... 

Figure 26 Principle of the irradiation of a PTV of any shape using the scanning-beam technique. The PTV is stratified into a series of layers, perpendicular to the incident beam. The different layers are irradiated successively with narrow pencil beams of equal range, scanned over the surface (different shape at each depth) by two deflecting magnets. (From Ref. 45.)...

Fig. 6.5. (a) Angular momentum orientation via beam deflection in a magnetic field. (6) Figure axis orientation for symmetric top molecules via beam deflection in an electric field, (c) Figure axis orientation in hexapole focussing field. 

H. Theuer, K. Bergmann, Atomic beam deflection by coherent momentum transfer and the dependence on weak magnetic fields, Eur. Phys. J. D 2 (1998) 279. 

The information is read out by a second laser beam deflected onto the hologram of the manganese-bismuth film but not onto the liquid crystals. Erasure is similar to writing except that neither of the beams is modulated or coded by the liquid crystals. The point on which the two laser beams meet is therefore magnetically neutralized. The film suffers no damage, and the write, read and erase processes can be repeated at will. 

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