2006-12-13 07:25:27 · 6 answers · asked by cjkaz 1 in Science & Mathematics ➔ Physics
If do a search on google with the criteria "zero field NMR", you will get few hits. I remeber this because I gave a seminar on this topic in grad school. The way it works is, you apply high magnetic field and then suddenly remove the field and let nuclei relax in vacuum and measure this relaxation process using squid detectors (superconducting quantum interference devcies) kind of device that is sensistive to very small signals (used for earthquake measurements too). The bottomline is, in vacuum each nuclei relaxes depending on the local enviornment surrounding it...i.e. the magnetic field excerted by neighboring nuclei. So now you can imagine if such small magentic field (local magnetic field) has an effect in vacuum, MRI will definately work.
2006-12-13 07:46:34 · answer #1 · answered by pkababa 4 · 0⤊ 4⤋
Yes an MRI would work. MRI's create thier own magnetic fields which are significantly larger than those of the Earth. You may need to adjust the way the MRI reads data, but it would still work.
2006-12-13 08:25:55 · answer #2 · answered by msi_cord 7 · 1⤊ 1⤋
Sure, the magnetic force due to the earth is very small compared to that of MRI's.
2006-12-13 07:34:27 · answer #3 · answered by Patrick W 1 · 1⤊ 1⤋
Hi. Yes, it makes it's own magnetic field.
2006-12-13 07:28:04 · answer #4 · answered by Cirric 7 · 1⤊ 1⤋
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2006-12-14 16:51:06 · answer #5 · answered by Francis D 1 · 1⤊ 0⤋
it should work fine
:> peace
2006-12-14 15:38:05 · answer #6 · answered by Anonymous · 2⤊ 0⤋