ON THE AXIAL FIELD OF A PARAMETRIC ACOUSTIC RADIATOR

1979 ◽  
Vol 40 (C8) ◽  
pp. C8-119-C8-125
Author(s):  
FRANCIS H. FENLON
Keyword(s):  
Axial Field ◽  
Acoustic Radiator

Theoretical And Practical Design Considerations for Ultra-High Resolution Electron Lenses

1980 ◽  
Vol 38 ◽  
pp. 266-269
Author(s):  
Y. Harada ◽  
K. Tsuno ◽  
Y. Arai
Keyword(s):  
Optical Properties ◽  
High Resolution ◽  
Chromatic Aberration ◽  
Point Of View ◽  
Pole Piece ◽  
Axial Field ◽  
Design Considerations ◽  
Resolution Electron ◽  
Practical Design ◽  
Peak Flux

Magnetic objective lenses, from the point of view of pole piece geometry, can he roughly classified into two types, viz., symmetrical and asymmetrical. In the case of the former, the optical properties have been calculated by several authors1-3) and the results would appear to suggest that, in order to reduce the spherical and chromatic aberration coefficients, Cs and Cc, it is necessary to decrease the half-width value of the axial field distribution and to increase the peak flux density. The expressions for either minimum Cs or minimum Cc were presented in the form of ‘universal’ curves by Mulvey and Wallington4).

Design and Analysis of a New HTS Axial-Field Flux-Switching Machine

2015 ◽  
Vol 25 (3) ◽  
pp. 1-5 ◽  
Author(s):  
Yubin Wang ◽  
Mu Chen ◽  
T. W. Ching ◽  
K. T. Chau
Keyword(s):  
Axial Field
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