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- Path: sparky!uunet!wupost!waikato.ac.nz!canterbury.ac.nz!cosc.canterbury.ac.nz!geoffrey
- Newsgroups: sci.electronics
- Subject: Nuclear Magnetic Resonance (NMR/MRI)
- Message-ID: <BzDI7y.53I@cantua.canterbury.ac.nz>
- From: geoffrey@cosc.canterbury.ac.nz (Geoff Thomas)
- Date: Wed, 16 Dec 1992 22:23:57 GMT
- Organization: Computer Science,University of Canterbury,New Zealand
- Nntp-Posting-Host: whio.canterbury.ac.nz
- Lines: 31
-
-
- I am wondering whether an NMR machine could be run 'inside-out'. As
- far as I understand them, NMR imagers consist of a toroidal magnet
- system, through which the subject is placed. Would it be possible to
- use a bar magnet type of configuration so that the subject didn't
- need to be placed within the physical magnet structure?
-
- i.e.
- this: instead of this:
- ........... MMMMMMM
- ........... MMMMMMMMMMM
- ........... MMMMMMMMMMMMMMM
- MMMMMM..... MMMM...SS..MMMM
- MMMMMM..... MMMM.SSSS..MMMM
- ........... MMMM..SS...MMMM
- .SS....S... MMMM....S..MMMM
- SSSS...SS.. MMMMMMMMMMMMMMM
- ..SSSSSS... MMMMMMMMMMM
- ........... MMMMMMM
-
- where:
- M = magnet structure
- . = magnetic field
- S = subject
-
-
- Can it be done? What range would the system typically be capable
- of measuring? How big would it be? How much power would be required?
-
- Any help much appreciated. Thanks in advance,
- Geoff Thomas
-