scholarly journals Effect of Electron and/or Ion Nonthermality on Dust Acoustic Wave Propagation in a Complex Plasma in Presence of Positively Charged Dust Grains Generated by Secondary Electron Emission Process

2016 ◽  
Vol 07 (01) ◽  
pp. 74-86 ◽  
Author(s):  
Susmita Sarkar ◽  
Subrata Bhakta
2004 ◽  
Vol 11 (5) ◽  
pp. 1850-1859 ◽  
Author(s):  
M. R. Gupta ◽  
Susmita Sarkar ◽  
Banamali Roy ◽  
Anupam Karmakar ◽  
Manoranjan Khan

Author(s):  
D. Voreades

Secondary electrons are used in making topographical pictures of specimens in the scanning electron microscope. A better understanding of the secondary emission process will contribute in improving the resolution in this mode of operation.Recent experiments have indicated first that the escape depth of secondary electrons is a few atomic layers at the surface of the solid and second that the backscattered electrons are much more efficient in producing secondaries than the incoming ones. The results vary considerably. However, any model that one makes, for example similar to that of Jonker, consistent with these recent experimental results, will have the thickness as an important parameter.


Sign in / Sign up

Export Citation Format

Share Document