Talk:Dense plasma focus

Scaling

The article states that the energy density, temperature, and electron density are essentially constant for machines which vary by three orders of magnitude in total energy. What are the typical values for these three parameters. How does the plasma beta vary? --Art Carlson 12:08, 31 July 2006 (UTC)

Plasma Gun

A plasma gun is similar to a Plasma Focus, but not the same. The configuration of the electrodes is entirely different. Moreover there is no pinch in plasma guns. The aim of plasma guns is simply to spit out, in a given ambient with proper pressure, plasma jets, not to pinch them.

I've qualified the difference, is that OK? --Iantresman 20:43, 8 July 2007 (UTC)

Video removed

The link to a Google TechTalks video explaining operation of DPF and its possible use for power generations was removed. Why? TristanDC (talk) 09:07, 31 May 2008 (UTC)

New scheme of DPF

Further to a request on the French graphic Lab, I recently created this image showing the functioning of the DPF, which is labelled and uploaded on Commons, thus everyone can use it. Karta24 (talk) 08:53, 24 August 2008 (UTC)

Focus Fusion-1 achieves first pinch

The baby is born! After seven years of theoretical work and raising money, five months of design, five months of construction and assembly, and a week of testing, LPP now has a functioning dense plasma focus, Focus-Fusion-1. The first shot, using helium as the fill gas, was achieved at 5:29 PM today, Oct.15, and the first pinch was achieved at 6:04 PM on the second shot. The fact that a pinch was achieved so soon was evidence of the soundness of the design.

http://focusfusion.org/index.php/site/article/lpps_newly_assembled_dpf_achieves_first_shots_and_pinch/ Kevin Baas^talk 14:21, 19 October 2009 (UTC)

hmm, it seems i was a bit late to the game. i should have figured - after all, this IS wikipedia. :) Kevin Baas^talk 14:28, 19 October 2009 (UTC)

Perspective Application

I wonder why none mentions another perspective application - a hybrid fusion-fission reactor? Fusion could supply the neutrons, and burn the sub-critical fission waste. —Preceding unsigned comment added by 82.102.87.135 (talk) 04:24, 26 January 2010 (UTC)

Description is difficult to understand

I understand the operational description between points 1 and 3. However, point 4, which isn't actually mentioned, is confusing. It appears that the plasma "sticks" to the top of the anode while the larger sheath on the cathode side keeps moving. This causes a cusp to form at the top of the anode, which pinches. This seems to be what the (excellent) illustration here on this page is showing.

Is this a correct description? If so, I'd like to edit the article.

Maury Markowitz (talk) 20:22, 19 October 2010 (UTC)

Possible plagiarism (needs cleanup)

The first paragraph past the introduction reads like a patent application with missing figures:

A charged bank of electrical capacitors is switched onto the anode. The gas within the reaction chamber breaks down and a rapidly rising electric current flows across the backwall electrical insulator, axisymmetrically, as depicted by the path (labeled 1) as shown in Fig. 1. The axisymmetric sheath of plasma current lifts off the insulator due to the interaction of the current with its own magnetic field (Lorentz force). The plasma sheath is accelerated axially, to position 2, and then to position 3, ending the axial phase of the device.

I don't see any figures when I view the page in my browser. I assume this was blindly copied.

76.172.1.204 (talk) 20:02, 5 August 2015 (UTC)

I agree. Where is figure 1? It is referenced in the Operation section. And this section has no citations.

Becalmed (talk) 05:19, 7 October 2015 (UTC)

I think that I found the source for the text but not the figure. Cold Nuclear Fusion: Germany 2012 by Florian Ion Petrescu

Becalmed (talk) 05:36, 7 October 2015 (UTC)

External links modified

Hello fellow Wikipedians,

I have just added archive links to one external link on Dense plasma focus. Please take a moment to review my edit. If necessary, add {{cbignore}} after the link to keep me from modifying it. Alternatively, you can add {{nobots|deny=InternetArchiveBot}} to keep me off the page altogether. I made the following changes:

• Added archive https://web.archive.org/20120325033941/http://www.intimal.edu.my/school/fas/UFLF/Papers/PP5PublishedPPCF%2050(2008)%20105005.pdf to http://www.intimal.edu.my/school/fas/UFLF/Papers/PP5PublishedPPCF%2050%282008%29%20105005.pdf

When you have finished reviewing my changes, please set the checked parameter below to true to let others know.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 18 January 2022).

• If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
• If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—^{cyberbot II}_{Talk to my owner:Online} 01:24, 13 January 2016 (UTC)

External links modified

Hello fellow Wikipedians,

I have just modified 3 external links on Dense plasma focus. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

• Added archive https://web.archive.org/web/20081028222802/http://www.intimal.edu.my/school/fas/UFLF/ to http://www.intimal.edu.my/school/fas/UFLF/
• Added archive https://web.archive.org/web/20160113012445/http://www.plasmafocus.net/IPFS/2011papers/PFtrendingintotheFuture%20.DOC to http://www.plasmafocus.net/IPFS/2011papers/PFtrendingintotheFuture%20.DOC
• Added archive https://web.archive.org/web/20081028222802/http://www.intimal.edu.my/school/fas/UFLF/ to http://www.intimal.edu.my/school/fas/UFLF/

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 18 January 2022).

• If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
• If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 23:43, 8 September 2017 (UTC)

External links modified (January 2018)

Hello fellow Wikipedians,

I have just modified 5 external links on Dense plasma focus. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

• Added archive https://web.archive.org/web/20080329233338/http://eprints.ictp.it/31/ to http://eprints.ictp.it/31/
• Added archive https://archive.is/20060509064357/http://eprints.ictp.it/273/ to http://eprints.ictp.it/273/
• Added archive https://web.archive.org/web/20071022152326/http://ckplee.myplace.nie.edu.sg/plasmaphysics/ to http://ckplee.myplace.nie.edu.sg/plasmaphysics/
• Added archive https://web.archive.org/web/20060528063104/http://www.icdmp.pl/pf1000.html to http://www.icdmp.pl/pf1000.html
• Added archive https://web.archive.org/web/20070606214431/http://www.cchen.cl/index.php?option=com_content&task=category&sectionid=11&id=111&Itemid=71 to http://www.cchen.cl/index.php?option=com_content&task=category&sectionid=11&id=111&Itemid=71

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 18 January 2022).

• If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
• If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 01:00, 25 January 2018 (UTC)