Abstract
Spectra of the Apollo 17/Saturn V exhaust plume have been obtained in the uv (300–400 nm), visible (400–650 nm), and ir (750–790 nm) regions. Analysis of these data with a pseudo color densitometer reveals (1) a standing wave pattern in the exhaust plume characterized by a wavelength of 9 m, (2) a region of intense continuum within 40 m of the exit plane which supports previous reports of a continuum blackbody source with a peak temperature near 2600 K, (3) a region of continuum emission beyond 40 m that is not blackbody, and (4) line emissions beyond 40 m attributed to the sodium D lines and potassium. It is suggested that an interference filter centered on the sodium D lines could be used on a high speed framing camera to study the turbulent structure of the plume in the nonblackbody region.
© 1974 Optical Society of America
Full Article | PDF ArticleMore Like This
David J. McCaa
Appl. Opt. 7(5) 899-903 (1968)
Abhishek Upadhyay, Michael Lengden, Godwin Enemali, George Stewart, Walter Johnstone, David Wilson, Gordon Humphries, Thomas Benoy, John Black, Andrea Chighine, Edward Fisher, Rui Zhang, Chang Liu, Nick Polydorides, Alex Tsekenis, Paul Wright, Joshua Kliment, Johan Nilsson, Yutong Feng, Victor Archilla, Javier Rodríguez-Carmona, Jesús Sánchez-Valdepeñas, Marta Beltran, Valentin Polo, Ian Armstrong, Iain Mauchline, Douglas Walsh, Mark Johnson, Joanna Bauldreay, and Hugh McCann
Appl. Opt. 61(28) 8540-8552 (2022)
G. H. Newsom
Appl. Opt. 13(11) 2712-2715 (1974)