P4-22: Electrostatic focusing of electrons off a large-area reticulated vitreous carbon (RVC) field emission source

2010 ◽  
Author(s):  
Brady C. Smith ◽  
Charles E. Hunt ◽  
Ivor Brodie
Keyword(s):  
Field Emission ◽  
Emission Source ◽  
Vitreous Carbon ◽  
Reticulated Vitreous Carbon ◽  
Large Area

A Field Emission Light Source Using a Reticulated Vitreous Carbon (RVC) Cathode and Cathodoluminescent Phosphors

2011 ◽  
Vol 7 (9) ◽  
pp. 467-472 ◽  
Author(s):  
Mitchell M. Cao ◽  
Rebecca J. Chacon ◽  
Charles E. Hunt
Keyword(s):  
Light Source ◽  
Field Emission ◽  
Vitreous Carbon ◽  
Reticulated Vitreous Carbon ◽  
Emission Light

Reticulated vitreous carbon field emission cathodes for light source applications

2003 ◽  
Vol 21 (1) ◽  
pp. 571 ◽  
Author(s):  
Andrei G. Chakhovskoi ◽  
Charles E. Hunt ◽  
Gunnar Forsberg ◽  
Thomas Nilsson ◽  
Per Persson
Keyword(s):  
Light Source ◽  
Field Emission ◽  
Vitreous Carbon ◽  
Reticulated Vitreous Carbon ◽  
Field Emission Cathodes

A High Resolution Scanning Microscope

1968 ◽  
Vol 26 ◽  
pp. 356-357
Author(s):  
A. V. Crewe ◽  
J. Wall ◽  
L. M. Welter
Keyword(s):  
High Resolution ◽  
Field Emission ◽  
Spherical Aberration ◽  
Focal Length ◽  
Spot Size ◽  
Emission Source ◽  
Field Of View ◽  
Scanning Microscope ◽  
Magnetic Lens ◽  
High Quality

A scanning microscope using a field emission source has been described elsewhere. This microscope has now been improved by replacing the single magnetic lens with a high quality lens of the type described by Ruska. This lens has a focal length of 1 mm and a spherical aberration coefficient of 0.5 mm. The final spot size, and therefore the microscope resolution, is limited by the aberration of this lens to about 6 Å.The lens has been constructed very carefully, maintaining a tolerance of + 1 μ on all critical surfaces. The gun is prealigned on the lens to form a compact unit. The only mechanical adjustments are those which control the specimen and the tip positions. The microscope can be used in two modes. With the lens off and the gun focused on the specimen, the resolution is 250 Å over an undistorted field of view of 2 mm. With the lens on,the resolution is 20 Å or better over a field of view of 40 microns. The magnification can be accurately varied by attenuating the raster current.

scholarly journals Recent advances on modified reticulated vitreous carbon for water and wastewater treatment – A mini-review

Chemosphere ◽  
2021 ◽  
pp. 131573
Author(s):  
Vanessa M. Vasconcelos ◽  
Géssica O.S. Santos ◽  
Katlin I.B. Eguiluz ◽  
Giancarlo R. Salazar-Banda ◽  
Iara de Fatima Gimenez
Keyword(s):  
Wastewater Treatment ◽  
Vitreous Carbon ◽  
Reticulated Vitreous Carbon ◽  
Water And Wastewater Treatment ◽  
Recent Advances ◽  
Water And Wastewater
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