Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Louis R. Falce"'
Publikováno v:
IEEE Transactions on Plasma Science. 40:1299-1302
Controlled porosity reservoir cathodes offer significantly improved performance over conventional impregnated cathodes. Optimized performance requires additional design to achieve reduced barium deposition on adjacent surfaces, increased lifetime, an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f77b3d5854cdc50cd4f66d178b7a3be4
https://doi.org/10.1109/tps.2011.2174386
https://doi.org/10.1109/tps.2011.2174386
Publikováno v:
IEEE Transactions on Plasma Science. 38:1345-1353
Controlled-porosity reservoir cathodes that can operate at high current densities with long lifetimes are described. The fabrication process is economical and adaptable to high volume production. The cathodes exhibit superior performance over sintere
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ddeeb0a1dbdaed6ba878ba843b238c07
https://doi.org/10.1109/tps.2010.2046427
https://doi.org/10.1109/tps.2010.2046427
Autor:
George Collins, K. Gunther, Robert Lawrence Ives, R. Wilcox, Philipp Borchard, G. Miram, Louis R. Falce, M. Curtis, David Marsden
Publikováno v:
IEEE Transactions on Plasma Science. 36:620-630
Recent gyrotron operations indicate that nonuniform cathode emission is prevalent in many, if not most, magnetron injection guns. A nonuniform emission can result in degradation of the RF performance and increase heating in the collector. This paper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f63ec27efd5268f3552988c88f10f5b
https://doi.org/10.1109/tps.2008.917529
https://doi.org/10.1109/tps.2008.917529
Lifetime and quantum efficiency advances in self-healing controlled porosity reservoir photocathodes
Autor:
Louis R. Falce, Donald W. Feldman, Alexandra Boldin, R. Lawrence Ives, Eric Montgomery, Blake Riddick
Publikováno v:
IEEE International Vacuum Electronics Conference.
Electron beams for such applications as free electron lasers demand high brightness, picosecond-pulsed photoemissive electron sources. The controlled porosity reservoir (CPR) photocathode is a self-healing electron photoemitter. Its design is inspire
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a39d4ff6c6e12bdeb7a5c1102c651e7
https://doi.org/10.1109/ivec.2014.6857524
https://doi.org/10.1109/ivec.2014.6857524
Autor:
Louis R. Falce, Zhigang Pan, Blake Riddick, Patrick G. O'Shea, Eric Montgomery, Donald W. Feldman, R. Lawrence Ives, Kevin L. Jensen
Publikováno v:
AIP Conference Proceedings.
A novel self-healing hybrid-diffuser cesium reservoir photocathode is demonstrated. The model-driven design optimizes operating temperature to match diffusion and evaporation rates and maximize quantum efficiency of the cesiated tungsten surface. A s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30b6240997ea6e9422ee2f2f78ea9e0d
https://doi.org/10.1063/1.4788991
https://doi.org/10.1063/1.4788991
Publikováno v:
2011 International Conference on Infrared, Millimeter, and Terahertz Waves.
Sintered tungsten wire, reservoir cathodes offer high current density operation with very long life time and extremely uniform emission current. The cathodes, however, should be designed for the specific performance requirements of the device. This p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4edf2ae40baf0bc4cba52b2802a5c8b1
https://doi.org/10.1109/irmmw-thz.2011.6105060
https://doi.org/10.1109/irmmw-thz.2011.6105060
Publikováno v:
2011 IEEE International Vacuum Electronics Conference (IVEC).
Research is continuing in development of high current density, reservoir cathodes. The research is focused on investigating different reservoir materials and applications. An additional goal is to increase the current density capability and further e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1320666be55a7be62b0c748243a1f40
https://doi.org/10.1109/ivec.2011.5746862
https://doi.org/10.1109/ivec.2011.5746862
Autor:
George Collins, G. Miram, David Marsden, Louis R. Falce, Bryan Smith, Steve Schwartzkopf, R. Lawrence Ives
Publikováno v:
35th International Conference on Infrared, Millimeter, and Terahertz Waves.
Sintered tungsten wire, reservoir cathodes offer high current density operation with very long life time. The diffusion rate can be selected consistent with the current emission density. This presentation will describe the impact of this technology a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e079e0c20169bd83a8ab9c66c8917468
https://doi.org/10.1109/icimw.2010.5613042
https://doi.org/10.1109/icimw.2010.5613042
Autor:
George Collins, Steve Schwartzkopf, R. Lawrence Ives, David Marsden, G. Miram, Louis R. Falce, Bryan Smith
Publikováno v:
2010 IEEE International Vacuum Electronics Conference (IVEC).
Sintered tungsten wire reservoir cathodes offer the promise of high current density operation with very long life time. The fabrication technique provides controlled porosity for diffusion of barium and oxygen to the emission surface to reduce the wo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d8a739d985a37c857fc0a91c90703d1
https://doi.org/10.1109/ivelec.2010.5503597
https://doi.org/10.1109/ivelec.2010.5503597
Autor:
R. Lawrence Ives, Louis R. Falce, George Miram, George Collins, Steven H. Gold, Gregory S. Nusinovich
Publikováno v:
AIP Conference Proceedings.
The latest advances in thermionic cathodes, including scandate and controlled porosity reservoir cathodes, are reviewed. These new cathodes provide improved performance over conventional cathodes for many applications. Advantages and disadvantages ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::afe406a364a6a26360e6dce881e7381c
https://doi.org/10.1063/1.3520381
https://doi.org/10.1063/1.3520381