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The combination of a microwave excitation source with a small spectroscope mounted in focus to a 35 mm camera (Figure 1) has proved to be rapid and relatively simple for the identification of various gases. The source is a standard magnetron unit, type CMD-4, from Raytheon which produces
microwave power of 10 to 100 watts at a frequency of 2450 megacycles. Both the excitation source and the spectroscope-camera are compact and portable and can be used under a wide variety of conditions. All parts are comparatively inexpensive and easily assembled.
U. S. Army Signal Research and Development Laboratory, Fort Monmouth, New Jersey
Publication date: March 1, 1961
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The Society publishes the internationally recognized, peer reviewed journal, Applied Spectroscopy, which is available both in print and online. Subscriptions are included with membership or can be purchased by institutional or corporate organizations. Abstracts may be viewed free of charge. Previously published as Bulletin (Society for Applied Spectroscopy)