Ammonia inversion spectrum: detailed measurements and theoretical calculations of pressure shift
- 14 March 1979
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 12 (5) , 743-753
- https://doi.org/10.1088/0022-3700/12/5/018
Abstract
The pressure shift of some ammonia inversion lines has been measured by a modified double-modulation spectrometer. Due to some unique features, a substantial improvement in stability and frequency resolution has been obtained over previous measurements. The experimental results have been compared with values deduced from an extension of Anderson's theory. There is an order of magnitude agreement and possible causes of discrepancy are discussed.Keywords
This publication has 30 references indexed in Scilit:
- The measurement of pressure-induced shifts of the J = 0 → 1 transition of CH3Cl35 at various temperaturesJournal of Molecular Spectroscopy, 1976
- Calculations of pressure induced widths and shifts in microwave spectraJournal of Quantitative Spectroscopy and Radiative Transfer, 1976
- A theory of microwave lineshiftsJournal of Physics B: Atomic and Molecular Physics, 1976
- Pressure shift of gases in the microwave regionIl Nuovo Cimento B (1971-1996), 1970
- Evaluation of Molecular Quadrupole Moments from Broadening of Microwave Spectral Lines. I. MeasurementsThe Journal of Chemical Physics, 1968
- Reduction of stainless-steel outgassing in ultra-high vacuumBritish Journal of Applied Physics, 1967
- New Method for the Measurement of Microwave Integrated Line Intensities and Line WidthsThe Journal of Chemical Physics, 1960
- Intensity measurements in microwave spectroscopy the “antimodulation” methodPhysica, 1959
- Variation of Line Width with Rotational State and Temperature in the Microwave Spectrum of OCSPhysical Review B, 1955
- Pressure Broadening in the Microwave and Infra-Red RegionsPhysical Review B, 1949