China's nuclear fusion machine just smashed Germany's hydrogen plasma record

Point out news stories, on the net or in mainstream media, related to polywell fusion.

Moderators: tonybarry, MSimon

Giorgio
Posts: 2686
Joined: Wed Oct 07, 2009 6:15 pm
Location: China, Italy

Re: China's nuclear fusion machine just smashed Germany's hydrogen plasma record

Postby Giorgio » Fri Feb 12, 2016 1:29 pm

Correct, also because until when a working reactor will arise (be it a Stellarator or a Tokamak or a Spheromak), there will be plenty of new issues/discoveries that will make the comparison bar swing in favor of one solution more than the others.

That said, once a commercial machine will arise than the points Dan mentioned will become totally relevant and there will be many other that will be more important than triple product evaluation. Fuel burn efficiency and overall fusion efficiency just to name two.
A society of dogmas is a dead society.

D Tibbets
Posts: 2775
Joined: Thu Jun 26, 2008 6:52 am

Re: China's nuclear fusion machine just smashed Germany's hydrogen plasma record

Postby D Tibbets » Sat Feb 13, 2016 4:08 am

ladajo wrote:Dan,
Regarding your comments above, what temperature are the stored particles in a Penning trap? .....


An interesting, if tangential consideration. Certainly chilling the charged particle to a few degrees Kelvin greatly decreases the gyro radius in a given B field strength, so ExB diffusion steps will be much smaller. Conversely, the colisionality increases as ~ 1/ square of the temperature, so ExB steps will occur much more frequently. How things balance out is uncertain for me. The density though, irregardless of temperature, leads to increases in collision frequency as a function of the density squared. I am also uncertain how the temperature contributes to the growth of edge instabilities.

Dan Tibbets
To error is human... and I'm very human.


Return to “News”

Who is online

Users browsing this forum: No registered users and 4 guests