Study of the H2CO presssure lineshift using a millimeter-wave RAD spectrometer with a solid-state reference-frequency synthesizer
| Autor: | Yu. L. Alekhin, N. F. Zobov, M. I. Kirillov, E. N. Karyakin, G. M. Altshuller, A.F. Krupnov |
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| Rok vydání: | 1985 |
| Předmět: |
Physics
Frequency synthesizer Nuclear and High Energy Physics Spectrometer Physics::Instrumentation and Detectors Automatic frequency control Astronomy and Astrophysics Statistical and Nonlinear Physics Electronic Optical and Magnetic Materials Torr Extremely high frequency Measuring instrument Rotational spectroscopy Electrical and Electronic Engineering Atomic physics Microwave |
| Zdroj: | Radiophysics and Quantum Electronics. 28:965-971 |
| ISSN: | 1573-9120 0033-8443 |
| DOI: | 10.1007/bf01040719 |
| Popis: | A 4-mm-wave RAD spectrometer with a solid-state reference-frequency synthesizer (a microwave synthesizer) is described. The use of a microwave synthesizer allows one to construct a compact, easily automatized system for control and measurement of the frequency of a radiation source and covers all basic needs of microwave spectroscopy in the 4-mm-wave band. The spectrometer was used for measuring the pressure lineshift and broadening of the H/sub 2/CO 1/sub 01/-O/sub 00/ line. The parameters obtained are equal to ..delta..nu/sub c/ = +4.8 +/- 0.3 MHz/tor for the line shift and ..delta gamma../sub y/ = 27 +/- 3 MHz/torr for line broadening. Some possible applications for the spectrometer are discussed. |
| Databáze: | OpenAIRE |
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