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ELEMENTARY DESCRIPTION OF SPECTROMETERS
ANALOGY WITH GEOMETRICAL OPTICS
12 other sections not shown
aperture approximation axial opening axis beam becomes beta spectrometers beta-ray boundary calculated coils constant contribution corrector cylindrical defined deflection detector slit dispersion distance double-focusing electron emitted emission angle energy entrance baffle equal exit slit field form field shape focusing angle fringing field effects Geiger counter geometrical optics geometry given higher order image width increases Instr iron-core iron-free Izvestia J.Phys K.Siegbahn Ksin larger Lee-Whiting lenses line width loops luminosity magnetic field magnetic lenses magnification measured median plane meter Meth momentum Nucl.Instr.Meth obtained optic circle optimum orbits parameters paraxial approximation particle Phys point source pole-pieces prism produced radius reduced relation resolution Rev.Sci.Instr ring focus second order sector semi-circular spectrometer shown in Fig Siegbahn smaller solid angle spectro spectrograph spectroscopy spectrum spherical aberrations symmetry Text to Figures theoretical thin lens toroidal toroidal spectrometer trajectory transmission trochoidal type of spectrometer uniform field values vector potential zero