P3-37: Emission characteristics of Sc- doped dispenser cathodes in electron gun open structures

2010 ◽  
Author(s):  
Wei Liu ◽  
Yiman Wang ◽  
Lei Zhao ◽  
Lili Li ◽  
Xizhu Zhang ◽  
...  
Keyword(s):  
Electron Gun ◽  
Emission Characteristics ◽  
Open Structures ◽  
Dispenser Cathodes

Emission Characteristics of Nanosized Scandia-Doped Dispenser Cathodes in Open Electron-Gun Structures

2011 ◽  
Vol 58 (4) ◽  
pp. 1241-1246 ◽  
Author(s):  
Wei Liu ◽  
Yiman Wang ◽  
Jinshu Wang ◽  
Yanchun Wang ◽  
Bernard Vancil
Keyword(s):  
Electron Gun ◽  
Emission Characteristics ◽  
Dispenser Cathodes ◽  
Open Electron

Emission characteristics of dispenser cathodes with a fine-grained tungsten top layer

1997 ◽  
Vol 111 ◽  
pp. 60-63 ◽  
Author(s):  
S. Kimura ◽  
T. Higuchi ◽  
Y. Ouchi ◽  
E. Uda ◽  
O. Nakamura ◽  
...  
Keyword(s):  
Emission Characteristics ◽  
Fine Grained ◽  
Dispenser Cathodes

Abstract: Emission Characteristics of a LaB6 Electron Gun

1973 ◽  
Vol 10 (6) ◽  
pp. 1128-1128 ◽  
Author(s):  
W. Stickel ◽  
H. C. Pfeiffer
Keyword(s):  
Electron Gun ◽  
Emission Characteristics

Emission characteristics and surface composition of dispenser cathodes in realistic vacuum

Vacuum ◽  
1990 ◽  
Vol 41 (7-9) ◽  
pp. 1763-1765 ◽  
Author(s):  
S. Kimura ◽  
D. Miyazaki ◽  
M. Hara ◽  
M. Fujiwara
Keyword(s):  
Surface Composition ◽  
Emission Characteristics ◽  
Dispenser Cathodes

A High Performance Energy Analyzer for Use in Electron Scanning Microscopy

1969 ◽  
Vol 27 ◽  
pp. 14-15
Author(s):  
A. V. Crewe ◽  
M. Isaacson ◽  
D. Johnson
Keyword(s):  
High Performance ◽  
Vertical Plane ◽  
Median Plane ◽  
Electron Gun ◽  
Uniform Field ◽  
Loss Mechanism ◽  
Electron Scanning Microscopy ◽  
Sector Type ◽  
Double Focusing ◽  
Electron Energy Loss

A double focusing magnetic spectrometer has been constructed for use with a field emission electron gun scanning microscope in order to study the electron energy loss mechanism in thin specimens. It is of the uniform field sector type with curved pole pieces. The shape of the pole pieces is determined by requiring that all particles be focused to a point at the image slit (point 1). The resultant shape gives perfect focusing in the median plane (Fig. 1) and first order focusing in the vertical plane (Fig. 2).

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