Spinning angle optical calibration apparatus
An optical calibration apparatus is provided for calibrating and reproducing spinning angles in cross-polarization, nuclear magnetic resonance spectroscopy. An illuminated magnifying apparatus enables optical setting and accurate reproducing of spinning magic angles in cross-polarization, nuclear magnetic resonance spectroscopy experiments. A reference mark scribed on an edge of a spinning angle test sample holder is illuminated by a light source and viewed through a magnifying scope. When the magic angle of a sample material used as a standard is attained by varying the angular position of the sample holder, the coordinate position of the reference mark relative to a graduation or graduations on a reticle in the magnifying scope is noted. Thereafter, the spinning magic angle of a test material having similar nuclear properties to the standard is attained by returning the sample holder back to the originally noted coordinate position. 2 figs.
- Research Organization:
- USDOE Morgantown Energy Technology Center, WV (USA)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (USA)
- Assignee:
- Dept. of Energy
- Patent Number(s):
- PATENTS-US-A7406004
- Application Number:
- ON: DE91011594; PPN: US 7-406004
- OSTI ID:
- 5933184
- Country of Publication:
- United States
- Language:
- English
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