Talk:Z Pulsed Power Facility

foam cylinder

From 81.62.242.92; The magnetic pulse crushes an array of tungsten wires into (?inside?) a foam cylinder that produces x-rays.

see [1]

Duk 15:11, 26 Oct 2004 (UTC)

Z machine as a particle accelerator

The Z machine may also be used as a particle accelerator. It gets its name because current travels vertically into the target, which is conventionally the z axis (x and y being horizontal).

How do the meanings of these sentences connect? The "current" here is the movement of electrons, and so in that way the Z machine is a particle accelerator? Does this make the Z machine comparable in function to CERN? ✈ James C. 16:57, 2004 Oct 26 (UTC)

good point. The sandia website mentioned that it could be used as a particle accelerator, but didn't give and examples, so i removed the sentance. Duk 19:19, 23 Nov 2004 (UTC)

From where comes the plasma?

Needs to say where the plasma comes from - is it produced prior to the main event or is it a side effect of the vaporization of the tungsten wires? Leonard G. 05:28, 12 Apr 2005 (UTC)

I think the plasma refers to the superheated tungsten wires collapsing on themselves. In reality the wires aren't collapsing all at once; their outer layers are going in first while the inner cores of the wires remain relatively intact. The cores do eventually move inward as well, however. --brian0918™ 11:39, 12 Apr 2005 (UTC)

2GK production timeline

In 2006, the Z Machine produced plasmas with temperatures in excess of 2 GK (109 K) or 3.6 billion oF. Project scientists were doubtful about the results, but after fourteen months of computer modeling and further tests, they have concluded that the results are, indeed, valid.

I don't exactly understand how 14 months of testing could be done if this was first done in 2006, anyone understand the timeline here a bit better? Perhaps it should be "In 2005"... Leebert 02:23, 14 March 2006 (UTC)

Unknown Energy

Can someone add a comment on the recent finding as described on Sandia's website and the theory Haines suggests.

"Ordinarily, in non-nuclear reactions, output energies are less — not greater — than the total input energies. More energy had to be getting in to balance the books, but from where could it come?

Second, and more unusually, high ion temperatures were sustained after the plasma had stagnated — that is, after its ions had presumably lost motion and therefore energy and therefore heat — as though yet again some unknown agent was providing an additional energy source to the ions."

http://www.sandia.gov/news-center/news-releases/2006/physics-astron/hottest-z-output.html

I'd say the press release was written by a journalist without an inkling of science understanding and not much more journalistic ability: Z is housed in a flat-roofed building about the size and shape of an aging high-school gymnasium. How does the size and shape of a gymnasium change with age? --Art Carlson 20:05, 24 March 2006 (UTC)

Is there some debate as to the accuracy of the reported findings? The contact listed is Neal Singer who is a science writer for Sandia National Laboratories. He specializes in pulsed power research, computing (modeling and simulation), basic research, the Laboratory-Directed R&D program, and the Microsystems and Engineering Sciences Application (MESA) facility and research?

What's the matter? You gotta problem with ad hominem arguments or somethin?  ; )

Singer, as illustrated by your quotes, makes the results sound like some kind of over unity device. The real situation is interesting, but hardly dramatic. It's not a question of a mysterious surplus of energy, but only of how the magnetic energy, which is undoubtably present, gets converted to thermal energy. According to this report, the overall efficincy is 10 to 15%. (See also Haines' abstract.) --Art Carlson 14:17, 26 March 2006 (UTC)

How about adding something to that effect to the article? It is significant, if only to address the concerns you raise over the wording of the press release?

Confusing sentence

What isthis sentence suppose to mean? "The Z machine is now able to propel small plates at 34 kilometers a second, faster than the 30 kilometers per second that Earth travels in its orbit around the Sun, and three times Earth's escape velocity."

It is worded poorly.... I wasnt aware the machine could propel stuff... I thought it only crushed them with xrays

The machine uses the energy that is normaly produced to well, crush things with X-rays is put into a coil/railgun to propel things. 71.196.157.153 (talk) 12:24, 6 July 2008 (UTC)

Power question

"Z releases 80 times the world's electrical power usage during its short burst." -- world's power usage over what time period? 68.170.53.236 04:15, 25 Oct 2004 (UTC)

updated with information from http://www.sandia.gov/media/NewsRel/NR1999/thermo.htm. Duk 04:59, 25 Oct 2004 (UTC)

Power usage over a time period is energy, making the comparison with the Z machine's power meaningless. -- 140.158.48.243 18:07, 25 Oct 2004 (UTC)

yes, power usage over time is energy. But the sentence is a power rating, during a brief period of time, not an energy rating. Duk 18:26, 25 Oct 2004 (UTC)

This sentence is indeed meaningless as it stands - how can something which itself contributes to the world's power usage produce more than that figure?

Its not meaningless. the instantaneous power output of Z is incredibly high (hundreds of trillions of watts) the instantaneous power output of the worlds electric power plants is far below that. I think you are misunderstanding the definition of power (physics). --Deglr6328 19:54, 10 September 2006 (UTC)

Z machine upgrades

Cool article, not enough time/knowledge to add it to the article [2] -Ravedave 14:35, 26 April 2007 (UTC)

Z Machine Pictures

http://www.sandia.gov/news/resources/releases/2007/rapid-fire-pulse.html

The pictures on this page are free to use according to the author. Are any of them good for the article? M@$+@ Ju ~ ♠ 03:25, 28 April 2007 (UTC)

Highest man-made temperature?

It says that the 2 billion kelvin is the highest man-made temperature. This is not true. They have already created trillion kelvin temperatures in RHIC (Relativistic Heavy Ion Collider) in the form of quark-gluon plasma.

For how many "particles" ? Croquant 16:08, 16 August 2007 (UTC)

I removed the section altogether. The claim is generally believed to result from a misinterpretation (interpreting the kinetic energy as temperature). Since the original publication 16 years ago, no other peer-reviewed study has claimed anything even remotely close to that figure. Evgeny (talk) 16:31, 24 May 2022 (UTC)

History?

A History section would we wonderful. What lead to the creation the Z Machine? Who was behind the creation of the Z Machine? How has the Z Machine changed over time? —Preceding unsigned comment added by 142.179.217.154 (talk) 05:32, 2 November 2007 (UTC)

Desmond Hume? Seriously?

Operated by Desmond Hume of Sandia National Laboratories, it gathers data to aid in computer modeling of nuclear weapons. The Z machine is located at Sandia's main site in Albuquerque, New Mexico.

Desmond Hume>? The link is to the Lost character page so this is obviously some prank or vandalism. —Preceding unsigned comment added by 221.163.163.17 (talk) 00:28, 28 January 2011 (UTC)

Dead Goldfish vandalism

"The end result of the program (scrapped in 2011) was the destruction of a goldfish named Frank." <-- located at the end of the article.

This is not referenced and seems to be vandalism. I've removed it from the article on 28/06/2016. — Preceding unsigned comment added by Gabrieldillon (talk • contribs) 20:35, 28 June 2016 (UTC)

External links modified

Hello fellow Wikipedians,

I have just modified 2 external links on Z Pulsed Power Facility. 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/20160303192309/http://www.sandia.gov/pulsedpower/prog_cap/pub_papers/accelerator_architecture_PRSTAB_2007.pdf to http://www.sandia.gov/pulsedpower/prog_cap/pub_papers/accelerator_architecture_PRSTAB_2007.pdf
• Added archive https://web.archive.org/web/20060715001220/http://www.aip.org/enews/physnews/2006/split/767-3.html to http://www.aip.org/enews/physnews/2006/split/767-3.html

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: 5 June 2024).

• 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) 10:31, 9 September 2017 (UTC)

External links modified (January 2018)

Hello fellow Wikipedians,

I have just modified 2 external links on Z Pulsed Power Facility. 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/20150620231327/http://www.bnsl.org/Documents/GerryYonas_shortbio.pdf to http://www.bnsl.org/Documents/GerryYonas_shortbio.pdf
• Added archive https://web.archive.org/web/20160303175927/http://www.sandia.gov/pulsedpower/newsreleases/reports/TrivelpieceSANDReport2002.pdf to http://www.sandia.gov/pulsedpower/newsreleases/reports/TrivelpieceSANDReport2002.pdf

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: 5 June 2024).

• 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) 03:21, 23 January 2018 (UTC)

My edits

Hi @Evgeny, I've redone my edit as multiple edits, accounting for your feedback. Let me know if there are any other specific things you thing should be changed.

In general, I would prefer if you either only revert the parts of the edit that are wrong or ask me to do so, rather than reverting the whole thing. Reverting the whole thing sets the article back to a worse state (the restored version has many additional errors, like the claim that a liner is an array of wires, and out-of-scope claims, like the Angara mention which was already in the article before my edit), and particularly in this case redoing the good parts was more work than undoing the bad parts.

Justin Kunimune (talk) 13:10, 20 October 2024 (UTC)

Hi, thank you. I usually revert only problematic parts, but it's really difficult to do when the changes are massive and spread over the whole article. Evgeny (talk) 15:51, 20 October 2024 (UTC)