Search Results - "Mackie, William A."

Field emission from hafnium carbide by Mackie, William A., Morrissey, Jennifer L., Hinrichs, Clarence H., Davis, Paul R.

“…We report on experiments to determine the feasibility of using refractory transition metal carbides as stable field emission cathodes. Applications of such…”
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P1-34: Stability improvements on Vogel mounted thermal sources by Mackie, William A, Magera, Gerald G, Fast, Cory L

“…We have produced thermionic cathodes using (100) oriented lanthanum and cerium hexaboride as the emission sources. These cathodes use the Vogel mount system…”
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Emission confinement on the (100) planes of etched tungsten field emitters coated with thin-film ZrC by Tianbao Xie, Mackie, W.A., Davis, P.R.

“…Field emission measurements were made on single crystal tungsten (100) emitters and were compared to emission measurements after coating with thin-film of…”
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Comparison of noise and emission characteristics between individually operated NbC/Nb and Ir field emitter array cathodes and etched W[100] emitters by Charbonnier, F., Southall, L.A., Mackie, W.A.

“…Oriented single crystal tungsten field emitters mounted on a filament were fabricated using electrolytic etch. The emission pattern of the W emitters was…”
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OS3: Photoemission from gold thin films for application in multiphotocathode arrays for electron beam lithography by Jiang, Xinrong, Berglund, C. N., Bell, Anthony E., Mackie, William A.

“…Photoemission is a promising approach to electron sources for electron beam lithography because of the ease with which various shapes or arrays of…”
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Transition metal carbides for use as field emission cathodes by Mackie, William A., Hartman, Robert L., Anderson, Mark A., Davis, Paul R.

“…Field emission characteristics of clean ZrC, HfC, and TaC cathodes are reported. High current density emission, greater than 1×108 A/cm2, is discussed, and a…”
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Using HfC(210) and HfC(110) as high brightness electron sources by Mackie, William A., Magera, Gerald G., Lovell, Josh M.

“…We report on high-brightness, thermal-field emission cathodes using (210) and (110) oriented hafnium carbide. HfC(210) cathodes are shown to deliver very high…”
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Improved emission stability of carburized HfC〈100〉 and ultrasharp tungsten field emitters by Yu, Ming L., Hussey, Brian W., Kratschmer, Ernst, Chang, T. H. Philip, Mackie, William A.

“…We have evaluated the cold‐field‐emission characteristics of HfC〈100〉 and ultrasharp tungsten emitters. We found that proper acetylene treatment improved both…”
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New Evidence for Localized Electronic States on Atomically Sharp Field Emitters by Yu, ML, Lang, ND, Hussey, BW, Chang, TH, Mackie, WA

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Use of boundary element methods in field emission computations by Hartman, Robert L., Mackie, William A., Davis, Paul R.

“…The boundary element method is well suited to deal with some potential field problems encountered in the context of field emission. A boundary element method…”
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Hafnium carbide CFE, TFE, and schottky electron sources by Mackie, W. A., Lovell, J. M., Magera, G. G.

“…We report on CFE and TFE cathodes using (310) oriented hafnium carbide. These have been operated in UHV and temperatures from 300 K to 1900 K. Emission data…”
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Competitive future of America: A review of divergent prognostications - A combined review of four books by Chakrabarti, A., Mackie, William A.

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11.3: Electron emission from hafnium carbide by Mackie, W A, Magera, G G

“…HfC was evaluated as a cold field emission source. Single crystal HfC was produced and fabricated into cold field emitters, then angular intensity and reduced…”
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Single-crystal zirconium carbide as a high-temperature thermionic cathode material by Mackie, W.A., Davis, P.R.

“…Experiments to determine the feasibility of using transition metal carbides as stable thermionic cathodes at temperatures exceeding 2000 K are discussed. The…”
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Preparation and characterization of zirconium carbide field emitters by Mackie, W.A., Hinrichs, C.H., Davis, P.R.

“…The authors report on experiments to determine the feasibility of using the refractory transition metal carbide ZrC as a stable field-emission cathode…”
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The extended Schottky cathode by Hinrichs, C.H., Mackie, W.A., Pincosy, P.A., Poulsen, P.

“…Cathodes operating in the range of electric field strength and temperatures falling within the extended Schottky domain are discussed for applications…”
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Effective work function measurements of advanced cathode materials via a thermionic projection microscope system by Mackie, W.A., Hinrichs, C.H., Davis, P.R.

“…An experimental method for simultaneously determining the effective thermionic work functions of major planes of single-crystal surfaces is reported. This…”
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Emission characteristics of NbC/Nb field emitters by Charbonnier, F., Southall, L., Mackie, A.

“…We report on an extensive study of the emission characteristics (noise and stability) of these NbC/Nb emitters at currents of /spl sim/1 /spl mu/mA and in…”
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Effective thermionic work function measurements of zirconium carbide using a computer‐processed image of a thermionic projection microscope pattern by Mackie, William A., Hinrichs, Clarence H., Cohen, Ira M., Alin, John S., Schnitzler, Don T., Carleson, Pete, Ginn, Robert, Krueger, Peter, Vetter, Catharine G., Davis, Paul R.

“…We report on a unique experimental method to determine thermionic work functions of major crystal planes of single crystal zirconium carbide. Applications for…”
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Transition Metal Carbides For Use As Field Emission Cathodes by Mackie, W.A., Davis, P.R.

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