Published Research - Department of Chemistry
Date of this Version
An economical two-circle orienting external goniometer has been designed and fabricated for an Andonian liquid helium Dewar. The Dewar can be tilted ±30° from the vertical in two perpendicular directions. The geometrical center of the Dewar's optical cavity moves a maximum of 1 mm when the cryostat is tilted the full 30°. The basic design involves the rotation of two concentric cylinders riding on bearing surfaces. Two chain belts and gear boxes are used as drive mechanisms.
Published by the American Institute of Physics. Rev. Sci Instrum.Volume 44, Issue 2, pp. 149-151 (1973). ©1973 American Institute of Physics. Permission to use.