[Lex Computer & Tech Group/LCTG] Nuclear fusion...

[Michael Alexander]

Carl, 
We could take your remark even further, Carl.  The “shot” on Dec 5 was far from the “first controlled fusion experiment in history”:  It was the first in which the energy of fusion exceeded the energy of the pulsed laser beams that initiated the fusion.  (Preceding experiments failed.)

We language snobs should, however, be consoled by the fact that the general public probably understood what the LLNL/DOE people were trying to say.
    – Mike Alexander


On Tuesday, December 13, 2022, 4:02 PM, carllazarus at comcast.net wrote:

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I read that “The LLNL said a team at its National Ignition Facility (NIF) conducted the first controlled fusion experiment in history on December 5, achieving what is known as "scientific energy breakeven."”

What is counted in “scientific energy” and what does it omit?

  

-- Carl

  

From: LCTG <lctg-bounces+carllazarus=comcast.net at lists.toku.us> On Behalf Of Ted Kochanski
Sent: Monday, December 12, 2022 7:32 PM
To: Drew King (dking65 at kingconsulting.us) <dking65 at kingconsulting.us>
Cc: Lex Computer Group <lctg at lists.toku.us>
Subject: Re: [Lex Computer & Tech Group/LCTG] Nuclear fusion...

  

All,

  

Be careful about Hype versus simple reality

  

Yes it does appear that LLNL National Ignition Facility may have hammered a poor defenseless target pellet into producing more fusion energy than was absorbed by the pellet

so technically Q>1 [about 1.2]

  

BUT -- and I'll admit a bias toward Magnetic Confinement Fusion -- the Energy used to produce the Energy delivered to the pellet was not part of the calculation

  

While Magnetic Fusion with Superconducting Magnets in a Tokamak configuration probably need Q>2 to be a credible Eureka Moment -- The energy needed to fire the lasers probably needs a Q>30

  

Ted

  

  

On Mon, Dec 12, 2022 at 5:30 PM Drew King (dking65 at kingconsulting.us) <dking65 at kingconsulting.us> wrote:


All,

The Verge: A “scientific breakthrough” in nuclear fusion? How to watch the announcement tomorrow.
https://www.theverge.com/2022/12/12/23505416/nuclear-fusion-scientific-breakthrough-how-to-watch-announcement-biden

-- 
Drew King

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