Joseph S Gregar

US Patent:

7271592, Sep 18, 2007

Filed:

Jun 14, 2005

Appl. No.:

11/152853

Inventors:

Alexander D. Meadows - Indianapolis IN, US
Joseph S. Gregar - Naperville IL, US
Jerome W. Rathke - Homer Glen IL, US

Assignee:

U.S. Department of Energy - Washington DC

International Classification:

G01V 3/00

US Classification:

324321, 324318

Abstract:

An analytical device for rapid, non-invasive nuclear magnetic resonance (NMR) spectroscopy of multiple samples using a single spectrometer is provided. A modified toroid cavity/coil detector (TCD), and methods for conducting the simultaneous acquisition of NMR data for multiple samples including a protocol for testing NMR multi-detectors are provided. One embodiment includes a plurality of LC resonant circuits including spatially separated toroid coil inductors, each toroid coil inductor enveloping its corresponding sample volume, and tuned to resonate at a predefined frequency using a variable capacitor. The toroid coil is formed into a loop, where both ends of the toroid coil are brought into coincidence. Another embodiment includes multiple micro Helmholtz coils arranged on a circular perimeter concentric with a central conductor of the toroid cavity.

US Patent:

D4136780, Sep 7, 1999

Filed:

Feb 14, 1997

Appl. No.:

D/066569

Inventors:

Ken B. Anderson - Lisle IL
Joseph S. Gregar - Naperville IL

Assignee:

The University of Chicago - Chicago IL

International Classification:

2402

US Classification:

D24232