Nuclear resonance tomography with a toroid cavity detector

Patent · Mon Jan 01 00:00:00 EST 1996

OSTI ID:870686

Woelk, Klaus ^[1]; Rathke, Jerome W ^[2]; Klingler, Robert J ^[3]

---

1. Hinsdale, IL
2. Lockport, IL
3. Westmont, IL

A toroid cavity detection system for determining the spectral properties and distance from a fixed point for a sample using Nuclear Magnetic Resonance. The detection system consists of a toroid with a central conductor oriented along the main axis of the toroidal cylinder and perpendicular to a static uniform magnetic field oriented along the main axis of the toroid. An rf signal is inputted to the central conductor to produce a magnetic field perpendicular to the central axis of the toroid and whose field strength varies as the inverse of the radius of the toroid. The toroid cavity detection system can be used to encapsulate a sample, or the detection system can be perforated to allow a sample to flow into the detection device or to place the samples in specified sample tubes. The central conductor can also be coated to determine the spectral property of the coating and the coating thickness. The sample is then subjected to the respective magnetic fields and the responses measured to determine the desired properties.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• DOE Contract Number: W-31109-ENG-38
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5574370
• OSTI ID: 870686
• Country of Publication: United States
• Language: English

Related Subjects

nuclear
resonance
tomography
toroid
cavity
detector
detection
determining
spectral
properties
distance
fixed
sample
magnetic
consists
central
conductor
oriented
main
axis
toroidal
cylinder
perpendicular
static
uniform
field
rf
signal
inputted
produce
strength
varies
inverse
radius
encapsulate
perforated
allow
flow
device
samples
specified
tubes
coated
determine
property
coating
thickness
subjected
respective
fields
responses
measured
desired
uniform magnetic
detection device
rf signal
central conductor
central axis
magnetic resonance
magnetic field
magnetic fields
field strength
nuclear magnetic
main axis
sample tube
sample tubes
spectral properties
toroid cavity
desired properties
coating thickness
field oriented
field perpendicular
cavity detector
/324/