We report the design and performance of an improved version of a microwave Fourier transform spectrometer in the frequency region between 26 and 40 GHz for the investigation of rotational spectra. The performance is illustrated by rotational transitions of allene-d4 and isotopomers of carbonyl sulfide in natural abundance. The high sensitivity of the spectrometer allows the measurement of very weak lines in only a few minutes
Published Online: 2014-6-2
Published in Print: 1990-5-1
© 1946 – 2014: Verlag der Zeitschrift für Naturforschung
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