Path: ...!3.eu.feeder.erje.net!feeder.erje.net!weretis.net!feeder8.news.weretis.net!reader5.news.weretis.net!news.solani.org!.POSTED!not-for-mail From: Jan Panteltje Newsgroups: sci.electronics.design Subject: Re: Heating for fusion, Why toast plasma when you can microwave it? Date: Thu, 08 Aug 2024 10:23:45 GMT Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; ISO-8859-15 Content-Transfer-Encoding: 8bit Injection-Date: Thu, 8 Aug 2024 10:23:46 -0000 (UTC) Injection-Info: solani.org; logging-data="1017329"; mail-complaints-to="abuse@news.solani.org" User-Agent: NewsFleX-1.5.7.5 (Linux-5.15.32-v7l+) Cancel-Lock: sha1:bhqNKALVNQLBUS8DUyJ/RmlCm7w= X-Newsreader-location: NewsFleX-1.5.7.5 (c) 'LIGHTSPEED' off line news reader for the Linux platform NewsFleX homepage: http://www.panteltje.nl/panteltje/newsflex/ and ftp download ftp://sunsite.unc.edu/pub/linux/system/news/readers/ X-User-ID: eJwNx8ERACEIBLCWWJDlKAcV+i/hfGXiRvDEonP5+JRVhFoXsf3iFX6sIZC6nwqemlgm7MRJ5lTfTUhoDuMHPeQUqw== Bytes: 3120 Lines: 40 On a sunny day (Thu, 8 Aug 2024 17:13:36 +1000) it happened Bill Sloman wrote in : >On 7/08/2024 3:27 pm, Jan Panteltje wrote: >> Heating for fusion: Why toast plasma when you can microwave it! >> https://www.sciencedaily.com/releases/2024/08/240806131216.htm >> Carving a new path forward for compact fusion vessels >> Date: >> August 6, 2024 >> Source: >> DOE/Princeton Plasma Physics Laboratory >> Summary: >> Can plasma be sufficiently heated inside a tokamak using only microwaves? >> New research suggests it can! Eliminating the central ohmic heating coil >> normally used in tokamaks will free up much-needed space for a more compact, >> efficient spherical tokamak. > >Not so much carving a new path as looking for one. Maybe be gyrotrons >can heat the plasma enough, but planing to do experiment which can test >whether they can isn't exactly carving a new path - more just looking at >a possible new path. > >> Bye bye ITER and that otehr fusion attempt mayonaise thing >> https://www.sciencedaily.com/releases/2024/08/240806131357.htm >> Researchers dig deeper into stability challenges of nuclear fusion -- with mayonnaise >> >> Now all I am waiting for is a 10 year old kid doing a better than break even fusion experiment in its parents kitchen... > >You may have to wait a long time. Mayonaise may exhibit Rayleigh-Taylor >instability, but the lessons it might be able to impart would be >difficult to translate into totomak design. I like that Farnsworth fusor thing They mention the grid gets too hot as a problem. Why not use a water filled pipe as grid, heat the water to steam, drive a small steam engine that drives a generator that drives a HV converter, simple electronics, there is a table top experiment. https://en.wikipedia.org/wiki/Fusor so many simple ways to improve that setup!