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From: Jan Panteltje <alien@comet.invalid>
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
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On a sunny day (Thu, 8 Aug 2024 17:13:36 +1000) it happened Bill Sloman
<bill.sloman@ieee.org> wrote in <v91r78$3pjer$3@dont-email.me>:

>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!