Search found 144 matches

by rnebel
Wed Jun 17, 2009 11:25 pm
Forum: News
Topic: We Will Know In Two Years
Replies: 158
Views: 35470

Not a whole lot. The WB7.1 is being used to address some issues we uncovered with the WB-7. It doesn't have a lot more capability than the WB-7, but we will use what we learn from it to better design the WB-8. We will also be testing and validating some diagnostics.
by rnebel
Sat Jun 06, 2009 12:09 am
Forum: News
Topic: WB-8 Coming
Replies: 79
Views: 21983

That's interesting, I see the WB-7 pic every day (it's my desktop) but the area it shows is too small to give the shape of the vessel. I always assumed it was spherical. Are you able to share any details on WB-8 (e.g. size, magnet strength, changes to the interconnects, geometry changes, etc.)? From...
by rnebel
Fri Jun 05, 2009 4:29 pm
Forum: News
Topic: WB-8 Coming
Replies: 79
Views: 21983

It's a 1 meter cube.
by rnebel
Fri Jun 05, 2009 4:28 pm
Forum: News
Topic: WB-8 Coming
Replies: 79
Views: 21983

It's a 1 meter cube.
by rnebel
Mon Jun 01, 2009 10:34 pm
Forum: News
Topic: ITER Delayed, Scaled Back
Replies: 81
Views: 11957

I think you are comparing apples and oranges here. MHD stability isn’t an issue for Polywells, just like it isn’t an issue for mirrors, spindle cusps or toroidal octupoles. I doubt that anyone would claim that MHD is an issue for any of these devices. But that doesn’t mean that Polywells are necessa...
by rnebel
Wed May 20, 2009 8:04 pm
Forum: News
Topic: We Will Know In Two Years
Replies: 158
Views: 35470

The major focus for the next generation Polywell is transport. We will be trying to take the machine from "OK" confinement to "good" confinement. Historically, this is a step that has been difficult for fusion machines. The next couple of years are going to be interesting. I also...
by rnebel
Tue May 19, 2009 9:50 pm
Forum: News
Topic: We Will Know In Two Years
Replies: 158
Views: 35470

The present projected Q values for p-11B vary from about 1.7 to about 12, depending on how the physics breaks. The details of how you do that are surprisingly subtle and coupled, and I'm not going to go into that in this forum. I view this as an "optimistic problem". There are a lot more s...
by rnebel
Tue May 19, 2009 6:28 pm
Forum: News
Topic: We Will Know In Two Years
Replies: 158
Views: 35470

Barry:

The transport issue is how fast energy leaves the system. You need to substantially more energy out in fusion than you inject into the machine. Transport losses determine how much energy you need to inject.
by rnebel
Tue May 19, 2009 5:55 pm
Forum: News
Topic: We Will Know In Two Years
Replies: 158
Views: 35470

Nothing is a slam dunk. If the transport doesn't work out, then none of the systems will work. Right now, the transport looks fine. The question is whether or not it will scale.
by rnebel
Tue May 19, 2009 4:16 pm
Forum: News
Topic: We Will Know In Two Years
Replies: 158
Views: 35470

I think we have a real shot at p-11B. I think it is possible to beat the Bremstrahlung issue.
by rnebel
Mon May 18, 2009 5:15 pm
Forum: General
Topic: Wind Scam
Replies: 15
Views: 3232

I don’t have strong opinions about wind power one way or the other, but I suspect that they are going to have some difficult logistics problems. One example of that is Illinois, where M. Simon lives. It’s flat and it has a lot of wind potential. It also has close, large markets in Chicago and St. Lo...
by rnebel
Fri May 08, 2009 8:44 pm
Forum: News
Topic: Dr. Nebel On Next Big Future
Replies: 30
Views: 7705

We looked at He3-He3 and concluded that the fusion reactivity was just too low, as several posters have pointed out.
by rnebel
Wed May 06, 2009 9:13 pm
Forum: News
Topic: Dr. Nebel On Next Big Future
Replies: 30
Views: 7705

We are not running p-B11. These references were all to the eventual reactor. The side reaction rates are calculated.
by rnebel
Tue May 05, 2009 10:02 pm
Forum: News
Topic: New Head of DOE Fusion Energy Sciences
Replies: 4
Views: 1966

Ed was a tokamak person at PPPL before he went to LLNL. Don't expect any changes from OFES.
by rnebel
Tue May 05, 2009 10:00 pm
Forum: News
Topic: Polywell article wins an award ...
Replies: 15
Views: 4592

Congratulations Tom. It's well earned.

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