Patent ID: 7268549

Claim:
An EPR spectrometer comprising: a channel; having generally opposing wide sides; and narrow sides; a sample hole through at least one of said narrow sides; at least one connection hole through at least one of said narrow sides; a polarizing magnet; having first and second poles having at least one substantially planar surface, a ferroelectric single crystal resonator; having a through hole; and a coil disposed within said channel generally surrounding the resonator; wherein said polarizing magnet disposed generally over said channel such that said substantially planar surfaces of said first and second poles are disposed substantially parallel and in close proximity to each of said wide sides, said ferroelectric single crystal resonator disposed within said channel generally between said first and second poles with said through hole substantially coaxial with said sample hole for receiving a sample there through, and said coil being in electric communication with a modulation source through connecting wires passing through said at least one connection hole.