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The initial SE (secondary electrons) angulardistribution as SEs leave the emitting
surface is predicted to follow a cosine distribution [1]
 [4838]
Here, δ_{0} is the SE yield at α = 0°. Figure 4838 shows the SE
angulardistribution for our polycrystalline gold sample at electron beam energy of 1.5 keV.
Figure 4838. SE angleresolved yield data for
polycrystalline Au with electron beam energy of 1.5 keV.
The
curve fits the data using the cosine distribution of Equation [4838]. [2]
[1] J. H. L. Jonker, The angulardistribution of the secondary electrons of
nickel, Philips Res. Rep., 6, 372387,1951.
[2] N. Nickles, R. E. Davies and J. R. Dennison, Applications of Secondary Electron Energy and AngularDistributions to Spacecraft Charging, 6th Spacecraft Charging Technology Conference, AFRLVSTR20001578, 1 September 2000.
