A low-frequency instrument for remote nuclear quadrupole resonance experiments

Abstract

A special pulsed instrument has been constructed for short-range remote nuclear quadrupole resonance experiments. The instrument was designed for detection of nitrogen-14 chemical compounds (in the low-frequency band 0.5 - 10 MHz). High sensitivity has been achieved by using a special construction of main sub-units and optimum experimental techniques. A description of the construction and performance of this instrument is given. As an example the results of the short-range remote detection of RDX are presented.