Ion thruster - Wikipedia
An ion thruster, ion drive, or ion engine is a form of electric propulsion used for spacecraft propulsion. An ion thruster creates a cloud of positive ions from a neutral gas by ionizing it to extract some electrons from its atoms. The ions are then accelerated using electricity to …
Ion Propulsion - NASA Science
The engines are thrifty with fuel, using only about 3.25 milligrams of xenon per second (about 10 ounces over 24 hours) at maximum thrust. The Dawn spacecraft carried 425 kilograms (937 pounds) of xenon propellant at launch.
The most common propellant used in ion propulsion is xenon, which is easily ionized and has a high atomic mass, thus generating a desirable level of thrust when ions are accelerated. It also is inert and has a high storage density; therefore, it is well suited for storing on spacecraft.
Gridded Ion Thrusters (NEXT-C) | Glenn Research Center | NASA
2017年1月25日 · The NEXT engine is a type of electric propulsion in which thruster systems use electricity to accelerate the xenon propellant to speeds of up to 90,000mph (145,000km/h or 40 km/s). NEXT can produce 6.9 kW thruster power and 236 mN thrust.
Xenon - Wikipedia
Xenon is the preferred propellant for ion propulsion of spacecraft because it has low ionization potential per atomic weight and can be stored as a liquid at near room temperature (under high pressure), yet easily evaporated to feed the engine.
The document describes the development and status of the NASA’s Evolutionary Xenon Thruster (NEXT) ion propulsion system (IPS) technology, its application to planetary missions, and the process anticipated to transition NEXT to the first flight mission.
NEXT Provides Lasting Propulsion and High Speeds for Deep Space ... - NASA
2013年9月9日 · NASA’s Evolutionary Xenon Thruster (NEXT) project, managed at NASA’s Glenn Research Center, has completed a test that powered the ion engine for over 48,000 hours. That’s five and a half years of thruster operation, making it the longest duration test of any space propulsion system in history.
The document describes the development and status of the NASA’s Evolutionary Xenon Thruster (NEXT) ion propulsion system (IPS) technology, its application to planetary and science missions, and the process anticipated to transition NEXT to the first flight mission.
The NASA’s Evolutionary Xenon Thruster – Commercial (NEXT-C) project, funded by NASA’s Planetary Science Division, was initiated in 2015 to complete development of the NEXT system for useon future missions . Aerojet Rocketdyne was awarded the contract with ZIN Technologies as a major subcontractor. In 2019, the NEXT-C project was
NASA History: Deep Space 1 Validated the Promise of Ion Thrusters
2019年12月18日 · A xenon ion engine prototype, photographed through a port of the vacuum chamber where it was being tested at NASA’s Jet Propulsion Laboratory, shows the faint blue glow of charged atoms being emitted from the engine.
The Most Powerful Ion Engine Ever Built Passes the Test
2023年11月4日 · The blue exhaust plume from the AEPS seen during these qualification tests is produced from ionized xenon gas, hence its ion propulsion name.
Deep Space 1's Ion Engine Proves Itself in Tests and Flight
2001年4月4日 · The ion engine works by first removing an electron from the gas xenon, then using a pair of electrically charged grids to shoot the ionized gas out at more than 35,000 meters per second (78,000 miles per hour).
NASA Evolutionary Xenon Thruster (NEXT) Laboratory Model (LM4)
The NASA Evolutionary Xenon Thruster (NEXT) is a 40 cm diameter ion engine, double the beam extraction area of the NSTAR ion engine. The NEXT ion engine development followed the “derating” philosophy used for the NSTAR engine.
Deep Space Mission Ion Engine Passes 8,000-Hour Endurance Test
1997年10月10日 · DS1's ion engine, which fires electrically charged xenon atoms from its thrusters, is just 29.9 centimeters (11.8 inches) in diameter. It is powered by another of the mission's dozen technologies: large solar arrays generating more than 2,000 watts, provided by the Ballistic Missile Defense Organization.
A Brief History of Ion Propulsion - NASA Solar System Exploration
2018年8月21日 · Ion propulsion systems ionize (charge) atoms and then exploit their non-neutral charge to expel them from the spacecraft, creating thrust. Dawn’s gridded ion thrusters achieve this by accelerating xenon, ionized by an electron beam, through a …
Pacific Northwest is a hub for fusion companies chasing ... - GeekWire
2022年11月4日 · For decades, physicists have struggled to create fusion on Earth in a reliable, cost-effective manner. If successful, it would unlock an unlimited source of safe, clean energy — the so-called “Holy...
NASA Thruster Achieves World-Record 5+ Years of Operation
2013年6月27日 · The NEXT engine is a type of solar electric propulsion in which thruster systems use the electricity generated by the spacecraft’s solar panel to accelerate the xenon propellant to speeds of up to 90,000 mph.
Me 262 Project - Wikipedia
The Me 262 Project is a company formed to build flyable reproductions of the Messerschmitt Me 262, the world's first operational jet fighter. The project was started by the Texas Airplane Factory and administered by Classic Fighter Industries. It is based at Paine Field in Everett, Washington, United States, near Seattle.
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