PDF Publication Title:
Text from PDF Page: 105
Ion Thruster Plasma Generators 93 RF and microwave ion thrusters utilize ion accelerator and electron-neutralizer implementations nearly identical to that of the DC-discharge ion thruster. However, these thrusters do not employ a discharge hollow cathode or anode power supply. These components are replaced by rf or microwave antenna structures, sources of microwave radiation and compatible discharge chambers to ionize the propellant gas and deliver the ions to the accelerator structure. These thrusters also utilize either applied or self-generated magnetic fields to improve the ionization efficiency of the system. The three thruster plasma generators to be discussed here, DC electron discharge, rf, and microwave discharge, have been successfully developed and flown in space. The principles of these different classes of plasma generators are described in the following sections after a discussion of the plasma generator efficiency that can be expected in an idealized case. 4.2 Idealized Ion Thruster Plasma Generator It is worthwhile to examine an ion thruster in the simplest terms to provide an understanding of the dominant processes in the particle flows and energy transport required to produce the plasma. The idealized thruster model has power injected by arbitrary means into a volume filled with neutral gas to produce ionization and neutral gas excitation, with all the ions going to the accelerator grids and an equal number of plasma electrons going to the wall to conserve charge. This is illustrated schematically in Fig. 4-3. For this model, the thruster discharge chamber has a volume V that fully encloses the plasma that is produced by ionization of neutral gas by the plasma electrons. The ions from the plasma flow only to the accelerator grid structure (perfect confinement elsewhere in the discharge chamber) with a current given by the Bohm current: Xeo Fig. 4-3. Idealized ion thruster with the ions assumed going to the grids and electrons going to the chamber wall. Chamber Wall e− Xe+ Accelerator GridsPDF Image | Fundamentals of Electric Propulsion: Ion and Hall Thrusters
PDF Search Title:
Fundamentals of Electric Propulsion: Ion and Hall ThrustersOriginal File Name Searched:
Goebel__cmprsd_opt.pdfDIY PDF Search: Google It | Yahoo | Bing
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
IT XR Project Redstone NFT Available for Sale: NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Be part of the future with this NFT. Can be bought and sold but only one design NFT exists. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Turbine IT XR Project Redstone Design: NFT for sale... NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Includes all rights to this turbine design, including license for Fluid Handling Block I and II for the turbine assembly and housing. The NFT includes the blueprints (cad/cam), revenue streams, and all future development of the IT XR Project Redstone... More Info
Infinity Turbine ROT Radial Outflow Turbine 24 Design and Worldwide Rights: NFT for sale... NFT for the ROT 24 energy turbine. Be part of the future with this NFT. This design can be bought and sold but only one design NFT exists. You may manufacture the unit, or get the revenues from its sale from Infinity Turbine. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Supercritical CO2 10 Liter Extractor Design and Worldwide Rights: The Infinity Supercritical 10L CO2 extractor is for botanical oil extraction, which is rich in terpenes and can produce shelf ready full spectrum oil. With over 5 years of development, this industry leader mature extractor machine has been sold since 2015 and is part of many profitable businesses. The process can also be used for electrowinning, e-waste recycling, and lithium battery recycling, gold mining electronic wastes, precious metals. CO2 can also be used in a reverse fuel cell with nafion to make a gas-to-liquids fuel, such as methanol, ethanol and butanol or ethylene. Supercritical CO2 has also been used for treating nafion to make it more effective catalyst. This NFT is for the purchase of worldwide rights which includes the design. More Info
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
Infinity Turbine Products: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. May pay by Bitcoin or other Crypto. Products Page... More Info
| CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com | RSS | AMP |