Solid-State Low-Power Pulsed NMR Spectrometer System

摘要

A pulsed Nuclear Magnetic Resonance Spectrometer system is described for relaxation time studies on solid and liquid samples. The spectrometer design is fully solid state and a special microcomputer interface is incorporated for automatic evaluation of the relaxation times. The prototype system has been designed to operate at 9 MHz, but the modular concept used in the construction permits operation at any frequency in the range 5 to 60 MHz. The system has a recovery time of 15 micro seconds at 9 MHz. The randge of measurement for the spin-lattice relaxation time is 0.1 millisecond to 1000 seconds; for spin spin relaxation time, the range is 14 mu seconds to 100 milli seconds. (ERA citation 07:046158)