Talk:Superconducting magnet

Untitled

Does anybody have references for this? Maybe mention the 1941 discovery of niobium nitride, the 1953 discovery of superconducting vanadium, the or the Westinghouse developments?

Use section

This used to read:

"Superconducting magnets can reach a much higher magnetic field intensity than normal magnets and they can hold this field for a long time. This is particularly needed in particle accelerators and nuclear magnetic resonance. For economic reasons these magnets are also used when a field of more than 1 tesla must be maintained for a long time."

which is all a bit wrong. I rewrote it and added the stuff on quenching. It might need a tidy up, I'm a bit tired, and - um - my magnet just quenched, which is why I've got time to do this. - 147.173.84.232 19:53, 14 December 2006 (UTC)Nick

Nick, much better opening paragraph, but I have one clarification. The largest resistive magnets are still capable of higher field than SC ones. NHMFL can do 36 T, DC in the hybrid. - Acronymsical (talk) 00:57, 6 January 2011 (UTC)

Increasing operator's heart rate

Why does quenching increases heart rate? Or is this a joke? Then it should be removed. Alexander Iwaschkin 16:09, 10 January 2007 (UTC)

I dunno. Possibly if its not a joke the increase is because of electrical interference? you know, like what a pacemaker does? maybe? Although, it does look a bit like a joke.

This really looks like a joke. I think I'll remove it! Besides, someone with a pacemaker will not be using a superconducting magnet, I think. —The preceding unsigned comment was added by 209.198.64.210 (talk) 23:52, 17 January 2007 (UTC).

Switching the current

I'm curious, how, in practical terms, the current is dumped into the magnet and then the magnet is switched to a closed loop. — Omegatron 19:31, 15 May 2007 (UTC)

A small part of the superconducting wire is outside the coil. When it is heated above its superconducting transition temperature the superconducting circuit is broken and it is possible to "dump" the current into the magnet. Of course, one needs to connect a suitable power supply accross this section of the superconducting wire.

TomyDuby (talk) 10:50, 12 July 2008 (UTC)

They come in non-electro too

They come as ordenary looking magnets as well http://www.youtube.com/watch?v=Z1yzH_7NIMg

They are verry cool, but ommited from this article

Alan2here 21:55, 5 June 2007 (UTC)

Inaccuracies in the construction section

• The coil itself may be made of tiny filaments (about 20 micrometers thick) of a type II superconductor in a copper matrix. It is not the coil but the wire a superconducting magnet is wound from that consists of filaments embedded in a copper matrix.

• These filaments need to be this small because in this type of superconductor the current only flows skin-deep. This is not correct

TomyDuby (talk) 10:46, 12 July 2008 (UTC)

Diagram misleading

The diagram of the superconducting magnet is not correct. The center of field is not in the center of the lower large superconducting coil. This is caused by the field of the compensation coil right above. The center is shifted downwards. Spinliquid (talk) 10:40, 7 January 2010 (UTC)

Assessment comment - March 2007

The comment(s) below were originally left at Talk:Superconducting magnet/Comments, and are posted here for posterity. Following several discussions in past years, these subpages are now deprecated. The comments may be irrelevant or outdated; if so, please feel free to remove this section.

The article about superconducting magnets makes no mention of ceramic high temperature superconductors. American Superconductor - http://www.amsuper.com/ - has developed superconductor wire using the ceramic high temperature superconductors. They use a procedure that is similar to the production of fiber optic cable. Their products have included magnets sold to Australia for a cyclotron and a giant superconductor "battery" to help prevent brownouts in Europe. It seems that the majority of their production now is military related.

Last edited at 11:10, 20 March 2007 (UTC). Substituted at 07:20, 30 April 2016 (UTC)

advances in accelerator magnets

Fermilab achieves world-record field strength for accelerator magnet Using Nb-Sn, claims 14.1 Tesla - previous record was 13.8 T. - Could mention and explain why accelerator magnets are harder than the other magnets mentioned - maybe its the extent of the field, or its uniformity along the beam track ? - Rod57 (talk) 13:20, 16 September 2019 (UTC)

State of the art eg for particle accelerators

Taming the superconductors of tomorrow includes latest on SbSn3 coils, & prospects for HTS. Could be good source for History and/or Uses sections. - Rod57 (talk) 11:00, 24 May 2020 (UTC)