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The next big thing in space propulsion?:
"Our solar system just became a little bit smaller due to a new plasma propulsion concept developed by the U.S. Department of Energy’s Principal Research Physicist, Dr. Fatima Ebrahimi. Her new engine uses plasmoids and magnetic fields to generate thrust, making crewed missions to distant planets, such as Mars, significantly more manageable and less costly." "“The idea for this thruster comes from my simulations of helicity injection in the [National Spherical Torus Experiment] NSTX fusion experiment in Princeton, a technique used to create the initial plasma current in a Tokamak [fusion reactor]. My simulations showed these plasma rings called plasmoids are being created and moving at very high speed,” Dr. Ebrahimi explained. According to computer simulations run by the Princeton Plasma Physics Laboratory and the National Energy Research Scientific Computing Center at the Lawrence Berkeley National Laboratory in Berkeley, California, her thruster concept produced exhaust velocities that are ten times greater than a traditional ion propulsion system with heart-stopping speeds at hundreds of kilometers per second." See: https://thedebrief.org/fusionpropulsion/ |
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On 2/2/2021 3:46 PM, Alain Fournier wrote:
On Feb/2/2021 at 13:30, wrote : See: https://thedebrief.org/fusionpropulsion/ Cool! I disagree. It's hot, very very hot.... ;-) Dave |
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On Feb/2/2021 at 15:55, David Spain wrote :
On 2/2/2021 3:46 PM, Alain Fournier wrote: On Feb/2/2021 at 13:30, wrote : See: https://thedebrief.org/fusionpropulsion/ Cool! I disagree. It's hot, very very hot.... ;-) Dave Indeed! Alain Fournier |
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"Alain Fournier" wrote in message ...
On Feb/2/2021 at 15:55, David Spain wrote : On 2/2/2021 3:46 PM, Alain Fournier wrote: On Feb/2/2021 at 13:30, wrote : See: https://thedebrief.org/fusionpropulsion/ Cool! I disagree. It's hot, very very hot.... ;-) Dave Indeed! Alain Fournier Sounds great in the lab... let's see how it scales and all. -- Greg D. Moore http://greenmountainsoftware.wordpress.com/ CEO QuiCR: Quick, Crowdsourced Responses. http://www.quicr.net IT Disaster Response - https://www.amazon.com/Disaster-Resp...dp/1484221834/ |
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On Tue, 2 Feb 2021, wrote:
How radioactive is the exhaust? The next big thing in space propulsion?: "Our solar system just became a little bit smaller due to a new plasma propulsion concept developed by the U.S. Department of Energy’s Principal Research Physicist, Dr. Fatima Ebrahimi. Her new engine uses plasmoids and magnetic fields to generate thrust, making crewed missions to distant planets, such as Mars, significantly more manageable and less costly." "“The idea for this thruster comes from my simulations of helicity injection in the [National Spherical Torus Experiment] NSTX fusion experiment in Princeton, a technique used to create the initial plasma current in a Tokamak [fusion reactor]. My simulations showed these plasma rings called plasmoids are being created and moving at very high speed,” Dr. Ebrahimi explained. According to computer simulations run by the Princeton Plasma Physics Laboratory and the National Energy Research Scientific Computing Center at the Lawrence Berkeley National Laboratory in Berkeley, California, her thruster concept produced exhaust velocities that are ten times greater than a traditional ion propulsion system with heart-stopping speeds at hundreds of kilometers per second." See: https://thedebrief.org/fusionpropulsion/ |
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My understanding is that the exhaust is not radioactive at all. I don't
think it is a nuclear propulsion system. They just accelerate a plasma the way they do it when they start up a Tokamak. In the Tokamak, the plasma moves at very high speeds before initiating nuclear reactions. Think of it as a novel way to make an ion drive. Alain Fournier On Feb/3/2021 at 04:25, William Elliot wrote : On Tue, 2 Feb 2021, wrote: How radioactive is the exhaust? The next big thing in space propulsion?: "Our solar system just became a little bit smaller due to a new plasma propulsion concept developed by the U.S. Department of Energy’s Principal Research Physicist, Dr. Fatima Ebrahimi. Her new engine uses plasmoids and magnetic fields to generate thrust, making crewed missions to distant planets, such as Mars, significantly more manageable and less costly." "“The idea for this thruster comes from my simulations of helicity injection in the [National Spherical Torus Experiment] NSTX fusion experiment in Princeton, a technique used to create the initial plasma current in a Tokamak [fusion reactor]. My simulations showed these plasma rings called plasmoids are being created and moving at very high speed,” Dr. Ebrahimi explained. According to computer simulations run by the Princeton Plasma Physics Laboratory and the National Energy Research Scientific Computing Center at the Lawrence Berkeley National Laboratory in Berkeley, California, her thruster concept produced exhaust velocities that are ten times greater than a traditional ion propulsion system with heart-stopping speeds at hundreds of kilometers per second." See: https://thedebrief.org/fusionpropulsion/ |
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On Wed, 3 Feb 2021, Alain Fournier wrote:
My understanding is that the exhaust is not radioactive at all. I don't think it is a nuclear propulsion system. They just accelerate a plasma the way they do it when they start up a Tokamak. In the Tokamak, the plasma moves at very high speeds before initiating nuclear reactions. Think of it as a novel way to make an ion drive. As Tokamaks do get radioative upon ussage, I doubt that exhaust isn't radioactive. |
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On Thursday, William Elliot queried:
On Wed, 3 Feb 2021, Alain Fournier wrote: My understanding is that the exhaust is not radioactive at all. I don't think it is a nuclear propulsion system. They just accelerate a plasma the way they do it when they start up a Tokamak. In the Tokamak, the plasma moves at very high speeds before initiating nuclear reactions. Think of it as a novel way to make an ion drive. As Tokamaks do get radioative upon ussage, I doubt that exhaust isn't radioactive. Tokamaks require the plasma to be contained to reach the pressures for fusion, and they are still working on getting enough pressure for long enough to claim sustained fusion. They are still building the structures (as an international project) for ITER. There have been recent photos, looking a lot like the stacking photos for SLS. /dps -- There's nothing inherently wrong with Big Data. What matters, as it does for Arnold Lund in California or Richard Rothman in Baltimore, are the questions -- old and new, good and bad -- this newest tool lets us ask. (R. Lerhman, CSMonitor.com) |
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On 2/2/2021 1:30 PM, wrote:
The next big thing in space propulsion?: This story reminds me of the late Paul M. Koloc's work with plasmoids as well. In his case, rather than create a thruster, he was hoping to compress plasmoids to fuse. The resulting EM pulse he wanted to couple magnetically to directly produce electricity. He called his invention the PLASKMAK. I never saw any working prototype that was over unity. But he was able to produce plasmoids on demand. Fascinating just in that respect. https://link.springer.com/chapter/10...4615-5867-5_31 https://www.legacy.com/obituaries/de...?pid=156015933 Dave |
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