Topic: What is the use of liquid nitrogen in NMR Spectrometer? (Read 8327 times)

Winga · « **on:** August 21, 2004, 11:52:57 AM »

Is it used for cooling down the system or providing a low temperature condition for electron delocalization in superconductor?

Mitch · « **Reply #1 on:** August 21, 2004, 09:56:17 PM »

Winga · « **Reply #2 on:** August 22, 2004, 12:59:27 AM »

Both?

Mitch · « **Reply #3 on:** August 22, 2004, 04:37:00 PM »

superconductivity.

Winga · « **Reply #4 on:** August 22, 2004, 07:54:30 PM »

That mean NMR Spectrometer does not generate much heat, right?

And why the superconductor generates a current only in very low temperature?

Mitch · « **Reply #5 on:** August 22, 2004, 08:48:36 PM »

Do metals "in general" conduct electricity better at lower or higher temperatures?

Winga · « **Reply #6 on:** August 25, 2004, 05:47:45 AM »

Do metals "in general" conduct electricity better at lower or higher temperatures?

Lower temp.

In normal conditions, can superconductor itself generate electric current or not?

celan · « **Reply #7 on:** September 20, 2004, 09:49:39 PM »

The liquid nitrogen with liquid He together providing a low temperature condition for superconductor.