Investigation of the Laser Radiation Focusing Effect on the Sensitivity of Analysis of the Hydrogen Isotope Content in Plasma-Deposited Layers by Laser-Induced Desorption

2020 ◽  
Vol 83 (11) ◽  
pp. 1533-1537
Author(s):  
S. A. Krat ◽  
A. P. Kharina ◽  
I. A. Sorokin ◽  
V. A. Kostyushin ◽  
E. D. Vovchenko ◽  
...  
2017 ◽  
Vol T170 ◽  
pp. 014021 ◽  
Author(s):  
A Drenik ◽  
D Alegre ◽  
S Brezinsek ◽  
A De Castro ◽  
U Kruezi ◽  
...  

Author(s):  
John W. Andrew ◽  
F.P. Ottensmeyer ◽  
E. Martell

Energy selecting electron microscopes of the Castaing-Henry prism-mirror-prism design suffer from a loss of image and energy resolution with increasing field of view. These effects can be qualitatively understood by examining the focusing properties of the prism shown in Fig. 1. A cone of electrons emerges from the entrance lens crossover A and impinges on the planar face of the prism. The task of the prism is to focus these electrons to a point B at a focal distance f2 from the side of the prism. Electrons traveling in the plane of the diagram (i.e., the symmetry plane of the prism) are focused toward point B due to the different path lengths of different electron trajectories in the triangularly shaped magnetic field. This is referred to as horizontal focusing; the better this focusing effect the better the energy resolution of the spectrometer. Electrons in a plane perpendicular to the diagram and containing the central ray of the incident cone are focused toward B by the curved fringe field of the prism.


1983 ◽  
Vol 44 (C2) ◽  
pp. C2-19-C2-25
Author(s):  
M. C. Gower ◽  
R. G. Caro

1980 ◽  
Vol 41 (C4) ◽  
pp. C4-31-C4-36
Author(s):  
J. R. Meyer ◽  
F. J. Bartoli ◽  
M. R. Kruer

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