Search Results - michael+keidar

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Two-stage Low-power and High-thrust To Power Electric Propulsion
Researchers at GW have developed a novel plasma accelerator that has applications in general propulsions, and in particular, microsatellite propulsions. The novel plasma accelerator is highly efficient in comparison to existing plasma accelerators, with the plasma accelerator being capable of improved thrust, thrust-to-power ratio, dissipating power,...
Published: 10/18/2024   |   Inventor(s): Michael Keidar, Denis Zolotukhin
Keywords(s):  
Category(s): Technology Classifications > Industrial or Consumer Tech > Industrial Manufacturing
High efficient micro-cathode arc thruster
In conventional micro and nano-satellite propulsion, systems often have issues such as low efficiency and a limited lifespan primarily due to the constraints of propellant use and power management. These systems, crucial for satellite maneuverability and positioning, typically suffer from inadequate thrust generation, leading to reduced operational...
Published: 10/18/2024   |   Inventor(s): Michael Keidar, Joseph Lukas, George Teel, Jonathan Kolbeck
Keywords(s):  
Category(s): Technology Classifications > Industrial or Consumer Tech
Digital micro-cathode arc thruster
Traditional satellite propulsion systems, particularly those used in small satellites like CubeSats, often encounter limitations in terms of efficiency and lifespan. These conventional systems, crucial for controlling and maneuvering satellites, struggle with generating enough thrust and maintaining it over extended periods due to constraints in propellant...
Published: 10/18/2024   |   Inventor(s): Michael Keidar, George Teel
Keywords(s):  
Category(s): Technology Classifications, Technology Classifications > Industrial or Consumer Tech
TWO-STAGE MICRO-PROPULSION SYSTEM BASED ON MICRO-CATHODE ARC THRUSTER
The traditional single-stage electric propulsion systems for small satellites, such as CubeSats, face challenges in terms of thrust, specific impulse, and efficiency. Typically operated at an optimal point for specific tasks, these systems require different thrusters for different maneuvers, making them less versatile. Researchers at George Washington...
Published: 10/18/2024   |   Inventor(s): Michael Keidar, Jonathan Kolbeck
Keywords(s):  
Category(s): Technology Classifications > Industrial or Consumer Tech
MICRO-CATHODE MATRIX ARC THRUSTERS
Existing plasma thrusters face significant challenges, primarily due to the rapid degradation of electrodes, leading to a shortened operational life. These conventional systems, relying on a single cathode-anode pair, suffer from inefficiencies that lead to rapid wear and limit their thruster life especially in small satellite platforms like CubeSats....
Published: 10/18/2024   |   Inventor(s): Keir Daniels, Zachary Switzer, Dimitris Kiaoulias, Michael Keidar
Keywords(s):  
Category(s): Technology Classifications > Industrial or Consumer Tech
Air-breathing electric thruster based on pulsed MPD accelerator
In recent years, there has been keen interest in developing an air breathing plasma thruster (ABPT) for very low earth-orbit applications, typically in the 80 – 260 km range. However, there are some challenges like developing an optimum approach to efficiently ionize air in a low pressure environment. Collimator designs are often used, which introduces...
Published: 11/20/2024   |   Inventor(s): Anmol Taploo, Michael Keidar
Keywords(s):  
Category(s): Technology Classifications > Industrial or Consumer Tech
Cathode side-Feeding in Micro-Cathode Arc Thruster
Vacuum arc thrusters, capable of generating milli to micro-Newton thrust, are crucial for the advancement of electric propulsion systems, especially for CubeSats and orbit transfer missions. Traditional designs of these existing micro-cathode -Arc Thrusters face critical issues with lifespan, debris formation, and irregular erosion of electrodes due...
Published: 9/9/2024   |   Inventor(s): Anmol Taploo, Guru Sankar Duppada, Vikas Soni, Adam Karp, Jake Spinelli, Michael Keidar
Keywords(s):  
Category(s): Technology Classifications > Computers Electronics & Software > Aviation
Self-neutralizing air-breathing thruster and method of neutralization
An ion-engine is the cutting edge for atmospheric air-breathing engines. The technology depends on ionizing and neutralizing atmospheric air particles which create thrust. This unique possibility makes it an ideal choice for very-low-orbit satellites. Very- low-orbit satellite capabilities have benefits such as higher resolution for images, weight...
Published: 7/30/2024   |   Inventor(s): Michael Keidar, Anmol Taploo, Li Lin
Keywords(s):  
Category(s): Technology Classifications > Computers Electronics & Software, Technology Classifications > Computers Electronics & Software > Aviation, Technology Classifications > Industrial or Consumer Tech > Energy Infrastructure and Environment, Technology Classifications > Industrial or Consumer Tech > Industrial Manufacturing
Discharge Ignition in the Micro-Cathode Arc Thruster
Researchers at GW have developed a novel, cost-effective, energy-efficient solution to increase ignition system lifetime for micro-cathode arc thrusters. For example, a vacuum arc is an electrical discharge between two conducting materials which occur in vacuum. Vacuum arcs are utilized in various applications such as circuit breakers, ion implantation...
Published: 7/30/2024   |   Inventor(s): Michael Keidar, George Teel
Keywords(s):  
Category(s): Technology Classifications > Industrial or Consumer Tech > Energy Infrastructure and Environment, Technology Classifications > Industrial or Consumer Tech > Industrial Manufacturing
Magnetically Enhanced Plasma Treatment of Cancer
Previously, GW researchers invented a method to selectively kill cancer cells with cold atmospheric plasma (CAP), while leaving neighboring normal cells unaffected. In the present invention, the researchers devised an enhanced method for CAP cancer therapy by concurrently exposing the cancer cells to a static magnetic field (Fig. 1). The researchers...
Published: 7/30/2024   |   Inventor(s): Michael Keidar, Xiaoqian Cheng, Alexey Shashurin, Jonathan Sherman
Keywords(s):  
Category(s): Technology Classifications > Therapeutics > Cells, Technology Classifications > Therapeutics
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