Resonant structure for spatial and spectral-spatial imaging of free radical spin probes using radiofrequency time domain electron paramagnetic resonance spectroscopy

US6573720B1 · kind B1 · utility

Assignee

• The United States of America, as represented by the Department of Health and Human Services · US

Inventors

• Nallathamby Devasahayam · Germantown, US
• James B. Mitchell · Damascus, US
• Angelo Russo · Bethesda, US
• John A. Cook · Austin, US
• Mobae Afeworki · Phillipsburg, US
• Rolf G. Tschudin · Kensington, US
• Sankaran Subramanian · Kothagudem, IN
• Ramachandran Murugesan · Rockville, US
• Frank Harrington · Catonsville, US
• Murali K. Cherukuri · North Potomac, US

Key dates

• Filing date: Apr 10, 2000
• Grant date: Jun 3, 2003
• Expiry date: Apr 10, 2020

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/60
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A radiofrequency (RF) coil design, suitable for detecting time domain electron paramagnetic resonance (EPR) responses from spin probes after pulsed excitation using radiofrequency irradiation (60-400 MHz), is configured in an array of numerous surface coils of appropriate diameters connected in a parallel or axial configuration with appropriate spacing between individual surface coils to form a volume type resonator.