Formations-elliptical scanning electron-beam cross section for removing unscanned area in high resolution camera tubes

Author(s):  
Mitsuhiro Kurashige
1979 ◽  
Vol 35 (6) ◽  
pp. 463-466 ◽  
Author(s):  
K. N. Ratnakumar ◽  
R. F. W. Pease ◽  
D. J. Bartelink ◽  
N. M. Johnson ◽  
J. D. Meindl

Author(s):  
David Joy ◽  
James Pawley

The scanning electron microscope (SEM) builds up an image by sampling contiguous sub-volumes near the surface of the specimen. A fine electron beam selectively excites each sub-volume and then the intensity of some resulting signal is measured. The spatial resolution of images made using such a process is limited by at least three factors. Two of these determine the size of the interaction volume: the size of the electron probe and the extent to which detectable signal is excited from locations remote from the beam impact point. A third limitation emerges from the fact that the probing beam is composed of a finite number of discrete particles and therefore that the accuracy with which any detectable signal can be measured is limited by Poisson statistics applied to this number (or to the number of events actually detected if this is smaller).


1970 ◽  
Vol 17 (6) ◽  
pp. 450-457 ◽  
Author(s):  
S. Miyauchi ◽  
K. Tanaka ◽  
J.C. Russ

Optik ◽  
2016 ◽  
Vol 127 (17) ◽  
pp. 6978-6981 ◽  
Author(s):  
Hassan N. Al-Obaidi ◽  
Musatfa M. Abid ◽  
Wasan J. Kadhem

1987 ◽  
Vol 20 (7) ◽  
pp. 901-905 ◽  
Author(s):  
M J Hart ◽  
A G R Evans ◽  
N K Bartlett

2016 ◽  
Vol 7 (1) ◽  
Author(s):  
Atsufumi Hirohata ◽  
Yasuaki Yamamoto ◽  
Benedict A. Murphy ◽  
Andrew J. Vick

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