The home-built pulse nuclear magnetic resonance spectrometer with digital quadrature detection for 3He research at low temperatures

Abstract

The home-built pulse nuclear magnetic resonance spectrometer for 3He research is described. The temperature range is 1.5 - 4.2 K, the frequency range is 3 - 20 MHz, the dead time is 10 μs at 10 MHz. The spectrometer software is based on programming language LabVIEW. The advantages of digital technique are described; particularly the implementation of digital quadrature detector. © Kazan Federal University (KFU).