dc.creator Herrmann, Gabriel en_US dc.date.accessioned 2006-06-15T12:44:24Z dc.date.available 2006-06-15T12:44:24Z dc.date.issued 1955 en_US dc.identifier 1955-C-5 en_US dc.identifier.uri http://hdl.handle.net/1811/7351 dc.description $^{*}$Supported by the United States Air Force, through the Office of Scientific Research of the Air Research and Development Command. $^{1}$Nuckols, Rueger, and Lyons, Phys. Rev. 89:1101 (1953) $^{2}$Gunther - Mohr, White, Schawlow, Good, and Coles, Phys. Rev. 94:1184 (1954) en_US dc.description Author Institution: Department of Physics, College of Engineering New York University en_US dc.description.abstract The inversion spectrum of $ND_{3}$ has been previously observed by Nuckols, Rueger and $Lyons^{1}$ in the region 1500 - 2500 Mc/sec. In the present work some of the hyperfine structure effects were investigated. Satellites due to the nuclear quadrupole moment of nitrogen were observed in several lines. The displacement of these satellites from the corresponding main lines is in agreement with theory and confirms the identification of the lines as given by Nuckols, Rueger, and Lyons. A value $eqQ = 4090 \pm 20$kc/sec was obtained for the quadrupole coupling constant of nitrogen, which is in good agreement with latest values obtained for $NH_{3}$.$^{2}$ In this work a Stark-Modulated L-band spectrograph was used, employing a cell of dimensions $10^{\prime} \times 6-1/2^{\prime\prime} \times 3-1/2^{\prime\prime}$ in a TEM mode. Half line widths as low as 15 kc/sec were observed. en_US dc.format.extent 101973 bytes dc.format.mimetype image/jpeg dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title HYPERFINE STRUCTURE OF $ND_{3}$ INVERSION $SPECTRUM^{*}$ en_US dc.type article en_US
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