PDF Publication Title:
Text from PDF Page: 181
Ion Thruster Plasma Generators 169 plasmas with good uniformity using microwave excitation due to the strong magnetic fields that confine the plasma and influence the profile. This leads to other magnetic configurations to produce the plasma using microwave ECR techniques. In a volume-ionization ECR source, like that shown in Fig. 4-36, a significant fraction of the discharge chamber must be filled with a strong magnetic field to satisfy the resonance condition. If this field is produced by a solenoid, the electrical power required to achieve a sufficient field strength can represent a significant energy cost to the thruster. Likewise, if the field is produced by permanent magnets, the weight of the magnetic material required to produce this field can represent a significant weight penalty for the thruster. This problem can be mitigated by using magnetic multipole boundaries that produce strong magnetic fields at the discharge chamber wall using ring or line-cusp magnet configurations. Figure 4-38 shows the field lines between two magnet rings and the regions of strong magnetic field close to the magnet where the resonant condition is satisfied. Injection of the microwave radiation between the cusps, either by cutoff waveguides inserted between the rows [52], by slotted waveguides run along the rows [53], or by antenna structures placed between the rows, will couple the microwaves to the high magnetic field interaction region. While this geometry eliminates the solenoidal magnet coils and minimizes the size of the permanent magnets required to produce the resonant field strength, there are several issues remaining. First, the magnetic field strength in the cusp region decreases as one over the distance from the surface squared. This means that very strong magnets are required to produce the resonant field at any significant distance from the wall. Second, electrons that gain energy from the Resonance Zones e− Magnet Rows MM Fig. 4-38. Magnetic field lines and electron cyclotron resonant zone in a ring-cusp wall geometry. B-Field Lines e−PDF 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 |