MicroWave Spectroscopy Laboratory

Instruments 400-1200 GHz range RAD Spectrometer Example of accuracy

Example of line broadening accuracy measurements. History of the 183-GHz water line air pressure broadening parameter measurements.


The broadening parameter value measured by different authors using different techniques is plotted versus year the data publication. Vertical bars correspond to experimental uncertainty. Due to systematical errors the values differ more than the measurement errors given by the authors. Our measurements (point 11 Ref. 10 (2000) and 12 Ref. 1 (2003) by resonator and point 14 Ref. 9 (2005) by RAD) are in a good agreement with and have the smallest uncertainty among others.

   Institute of Applied Physics of the Russian Academy of Sciences
   contact webmaster