A magnetic 4π goniometer for Zeeman-split NQR

  title={A magnetic 4π goniometer for Zeeman-split NQR},
  author={V. Nagarajan and Norbert Weiden and Richard Wendel and Alarich Weiss},
Abstract With the aid of three mutually perpendicular Helmholtz coils a 4π Zeeman goniometer is constructed for application in NQR spectroscopy. Details of the construction are given. The spectrometer is cheked by measuring the zero splitting cone of 35 Cl NQR in a single crystal of NaClO 3 at room temperature. The precision of the goniometer is evaluated.