Apparatus for unilateral generation of a homogeneous magnetic field
Abstract
An apparatus for unilaterally producing a substantially homogeneous magnetic field. The apparatus includes two circular electromagnet coils, a small coil and a large coil, which are coaxial with one another and which are separated by a distance equal to one-half the difference in the radius of the two coils. By appropriate selection of electrical currents, which are passed through the coil in opposite directions, a region of homogeneous magnetic field is formed. This region is centered on the common axis of the two coils, at a point on the axis which is at a distance from the small coil equal to one-half the radius of the small coil, and which is on the opposite side of the small coil from the large coil. The apparatus has particular application in the field of diagnostic medical NMR and other NMR applications.
- Inventors:
-
- Los Alamos, NM
- San Diego, CA
- La Mesa, CA
- Issue Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- OSTI Identifier:
- 866486
- Patent Number(s):
- 4721914
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01F - MAGNETS
- DOE Contract Number:
- W-7405-ENG-36
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- apparatus; unilateral; generation; homogeneous; magnetic; field; unilaterally; producing; substantially; circular; electromagnet; coils; coil; coaxial; separated; distance; equal; one-half; difference; radius; appropriate; selection; electrical; currents; passed; opposite; directions; region; formed; centered; common; axis; particular; application; diagnostic; medical; nmr; applications; substantially homogeneous; magnet coils; appropriate selection; opposite direction; opposite directions; particular application; magnetic field; electrical current; distance equal; common axis; electrical currents; homogeneous magnetic; /324/335/600/
Citation Formats
Fukushima, Eiichi, Rath, Alan R, and Roeder, Stephen B. W. Apparatus for unilateral generation of a homogeneous magnetic field. United States: N. p., 1988.
Web.
Fukushima, Eiichi, Rath, Alan R, & Roeder, Stephen B. W. Apparatus for unilateral generation of a homogeneous magnetic field. United States.
Fukushima, Eiichi, Rath, Alan R, and Roeder, Stephen B. W. Fri .
"Apparatus for unilateral generation of a homogeneous magnetic field". United States. https://www.osti.gov/servlets/purl/866486.
@article{osti_866486,
title = {Apparatus for unilateral generation of a homogeneous magnetic field},
author = {Fukushima, Eiichi and Rath, Alan R and Roeder, Stephen B. W.},
abstractNote = {An apparatus for unilaterally producing a substantially homogeneous magnetic field. The apparatus includes two circular electromagnet coils, a small coil and a large coil, which are coaxial with one another and which are separated by a distance equal to one-half the difference in the radius of the two coils. By appropriate selection of electrical currents, which are passed through the coil in opposite directions, a region of homogeneous magnetic field is formed. This region is centered on the common axis of the two coils, at a point on the axis which is at a distance from the small coil equal to one-half the radius of the small coil, and which is on the opposite side of the small coil from the large coil. The apparatus has particular application in the field of diagnostic medical NMR and other NMR applications.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {1}
}