Talk:Oxford Instruments 2.2K 800/63 magnet

This page is for discussions regarding Pumped Oxford SuperCon Magnets.

To reach wich field it's required ?

Otherwise is their also other system of going below the 4 °K of the liquid helium at atmospheric pressure ? like dilution refrigerator ?

No, it's going to 2.2 K because helium is pumped below atmospheric pressure. Boiling temp is lower because pressure is lower.

There are two He chambers one inside another. Outer chamber is at 1 atm, Inner at ~18 mtorr, so it's colder.

I think some or maybe all first 800MHz and 900MHz systems were like that. Bruker was also making these.

New magnet coils are made of a different alloy that makes more stable semiconductor.

Evgeny Fadeev 22:44, 25 April 2008 (MDT)