J
John J. Mankowski
Researcher at Texas Tech University
Publications - 166
Citations - 1276
John J. Mankowski is an academic researcher from Texas Tech University. The author has contributed to research in topics: Marx generator & Vircator. The author has an hindex of 15, co-authored 156 publications receiving 1086 citations.
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Proceedings ArticleDOI
Multipactor Thresholds in a Planar Test Cell
TL;DR: In this paper, a planar test cell was designed and implemented to observe the multipactor effect in waveguide structures, which allows for multiple geometries to be machined and easily replaced within the test structure.
Proceedings ArticleDOI
An Ion Beam Sputtering System for Electrode Surface Conditioning
TL;DR: In this article, thin film coatings of various hard metallic alloys and oxides were applied to stainless steel electrodes using ion beam deposition using an SPT type Hall effect thruster capable of producing an ion beam with energies between 150 eV and 350 eV.
Evaluation of Explosive Emission Carbon Fiber Cathodes for High-Power Microwave Devices
TL;DR: In this article , the performance of carbon fiber velvet cathodes was compared with other commercially available carbon fiber cathodes, such as metal, silk or synthetic velvet, carbon fiber, and cesium iodine (CsI)-coated carbon fiber.
Proceedings ArticleDOI
Results of a compact reflex triode with multi cavity adjustment
TL;DR: In this article, the authors focus on achieving wide tunability of a compact reflex triode virtual cathode oscillator (vircator) by placing a square waveguide within a sealed vacuum tube.
Proceedings ArticleDOI
High electric field atmospheric breakdown of air at high frequency for large gaps
Animesh R. Chowdhury,H. K. Nguyen,Ravindra P. Joshi,James C. Dickens,John J. Mankowski,Andreas A. Neuber +5 more
TL;DR: In this article, the breakdown threshold voltage is lowered from its DC value due to enhanced space charge from ions that become trapped in the gap, and the gap size is not considered.