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mchargue wrote: This is an unexpected collaboration.
http://www.guardian.co.uk/environment/2012/may/25/iranian-team-collaborate-us-nuclear

Good news!

And the Guardian article is okay if brief…

… but I wish that pic of a tokamak-style toroid could have been of something more relevant instead 🙂

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vansig wrote: no, it’s silly. what could keep that beam running for 1/8th of a second? nothing could

People can be silly, on occasion, and it’s sometimes hard to predict exactly what they’ll choose to be silly about…

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Joeviocoe wrote: https://www.neco.navy.mil/synopsis_file/N6893609C0125 _Redacted_JA.pdf

You need to enclose urls containing spaces within url tags…

https://www.neco.navy.mil/synopsis_file/N6893609C0125 _Redacted_JA.pdf

… also…

https://www.fbo.gov/index?s=opportunity&mode=form&id=172f53639c2b7cef2fd02a775f42816c&tab=core&_cview=0

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Lerner wrote: Umm, can’t I speak for myself?

Sorry! I was typing out loud… you’d mentioned that this was for the DPF network and I was trying to sort through the site at that moment 🙂

Lerner wrote: and what is hakase?

“Professor” in Japanese, can be applied as an honorific.

Lerner wrote: I asked for them in one document, chronologically or grouped by month. see first message in thread.No reason to create more work.
Thanks, Keith!

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KeithPickering wrote: So now I’ve got 84 citations, and the question is how to display them in a useful manner. Two options come to mind:

I [em]think[/em] that Lerner-hakase wanted these to go into the lists at DPF network?

http://denseplasmafocus.org/

… which has its own setup for listing cites.

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Hey, hey… I’m sure that 2 million amps at 45 thousand volts with temperatures exceeding several billion degrees is low energy in comparison to something… somewhere…

… but when did Lerner-hakase start writing KDE desktop applets?

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break wrote: I don’t no, becouse I don’t know much about DPFs (I am still an undergraduate). But isn’t said there is a problem with anode/cathode erosion? Maybe I mixed anode an cathode up…

Just for completeness – Lerner-hakase touched on this in the other thread where you asked:
https://focusfusion.org/index.php/forums/viewreply/10384/

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Lerner wrote: Anyone can acess Inspec from a good library. I would guess most public libraries as well as university libraries have it.

No luck at the county level. DePauw at least should have it but I’m pretty much chairbound nowadays and can’t make such a trip without extensive preparations. Apparently, living in the wilds of western Indiana has drawbacks I’d not yet become aware of so I’ll have to leave it to the laterally mobile 🙂

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Joeviocoe wrote: … governments will focus all efforts to get that anode erosion problem taken care of.

Actually, as has been mentioned before when this question has been raised, per LPP the electron beam is not expected to make it out of the plasmoid in an all-up p11B configuration.

It will exist, as it is paired with the ion beam just as in a normal DPF, but it is expected to expend its energy heating the plasmoid and increasing the fusion rate.

While the anode is going to have a lot to deal with, it is thought that the concentrated damage from beam strikes is not going to be the deal it is with current DPF units.

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The criticism you link to doesn’t go much into the reasoning behind it.

Could you list what factors in the FF design would be expected to cause anode damage?

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Lerner wrote: Actually, you will find many more articles with Inspec than with Google Scholar–not everything is on line even today. I don’t think it’s worth it to do Google because that list will be included in what someone else finds in Inspec. Unless of course you are just curious in which case it’s fine.

Well, if the idea is picked up by someone who already has Inspec access then that would be best.

If not, then perhaps we could be a cheap and tawdry interim solution? 🙂

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I haven’t gotten at that presentation yet but at least nothing you’ve listed is out of line with what has been discussed here, so… 🙂

Joeviocoe wrote:
4) New Raytheon switches for more Current from capacitors – 10x yield.

After all the switch history with LPPX I wonder what these are like… anyone have a link?

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Hmmm…. how many hundreds of papers would that be, I wonder… 🙂

I was working up a chisel-tip crown for the fun of it, as opposed to the spikey crown, (the right-angle tip is strong but it’s still a point) but I guess that I could take a stab at this.

Have to register there? Rezwan should have a common login option for her sites 🙂

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wolfram wrote: You misremeber your future-history…

I was wondering if ikanreed was a Kzin 🙂

I thought I met a Kzin once but it was just Garfield…

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ikanreed wrote:
Tin whiskers come from the sodder used to finish circuitry.

Yes, it is a known issue for electronics, including spacecraft electronics.

And it seems certain that engineering an FF unit for spacecraft use will turn up its own surprises.

But metal whiskers would not to seem to be able to do well in an FF chamber. These are crystalline metal structures thinner than a human hair.

The FF equivalent would be beryllium whiskers or some other chamber material – and would any such even be whisker prone? – and the concept requires a fairly static environment for the whiskers to grow large enough to be a problem….

… and the interior of an operating FF chamber isn’t exactly a static environment 🙂

So I’d think that if even if there were any potential whisker problems in an FF chamber they would turn out to be as much of a problem for planetside units as for spaceborne units… if…

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