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Scanning electron microscope imaging in liquids – some data on electron interactions in water
Author(s) -
JOY D. C.,
JOY C. S.
Publication year - 2006
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1111/j.1365-2818.2006.01548.x
Subject(s) - electron , monte carlo method , scattering , electron scattering , range (aeronautics) , scanning electron microscope , ionization , atomic physics , liquid water , backscatter (email) , materials science , environmental scanning electron microscope , atomic number , cathode ray , yield (engineering) , electron microscope , chemistry , optics , physics , ion , nuclear physics , mathematics , computer science , composite material , telecommunications , metallurgy , wireless , thermodynamics , statistics , organic chemistry
Summary The electron backscattering coefficient of liquid water has been determined for electrons in the energy range 15–30 keV using Quantomix TM capsules. Values of the mean atomic number for water estimated from a fit to the backscatter yield, the mean ionization potential of water and from Monte Carlo simulations, show that the scattering behaviour of water is not anomalous despite the effects of hydrogen bonding. Computations of the electron range, and of the mean depth for backscattering, in water as a function of incident beam energy show that water and vitreous ice are good media for imaging purposes.