P1–5: Field emission electron gun using a reticulated vitreous carbon cathode

2010 ◽  
Author(s):  
Brady C. Smith ◽  
Charles E. Hunt ◽  
Arthur C. Carpenter
Keyword(s):  
Field Emission ◽  
Electron Gun ◽  
Vitreous Carbon ◽  
Reticulated Vitreous Carbon ◽  
Carbon Cathode ◽  
Emission Electron

Observation of Phase Contrast Images in STEM and CTEM Modes by Using 100 kV Field Emission Electron Gun

1974 ◽  
Vol 32 ◽  
pp. 390-391
Author(s):  
Y. Harada ◽  
T. Goto ◽  
H. Koike ◽  
T. Someya
Keyword(s):  
Field Emission ◽  
Phase Contrast ◽  
Image Formation ◽  
Fresnel Diffraction ◽  
Experimental Results ◽  
Electron Gun ◽  
Scanning Microscopy ◽  
Emission Electron ◽  
Lattice Images

Since phase contrasts of STEM images, that is, Fresnel diffraction fringes or lattice images, manifest themselves in field emission scanning microscopy, the mechanism for image formation in the STEM mode has been investigated and compared with that in CTEM mode, resulting in the theory of reciprocity. It reveals that contrast in STEM images exhibits the same properties as contrast in CTEM images. However, it appears that the validity of the reciprocity theory, especially on the details of phase contrast, has not yet been fully proven by the experiments. In this work, we shall investigate the phase contrast images obtained in both the STEM and CTEM modes of a field emission microscope (100kV), and evaluate the validity of the reciprocity theory by comparing the experimental results.

scholarly journals Copper deposition at segmented, reticulated vitreous carbon cathode in Hull cell

2010 ◽  
Vol 88 (2) ◽  
pp. 84-92 ◽  
Author(s):  
R. C. Tangirala ◽  
C. T. J. Low ◽  
C. Ponce-de-León ◽  
S. A. Campbell ◽  
F. C. Walsh
Keyword(s):  
Copper Deposition ◽  
Vitreous Carbon ◽  
Reticulated Vitreous Carbon ◽  
Carbon Cathode ◽  
Hull Cell
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