Abstract

The emphasis in this paper is on the circuitry aspect of the problem of converting a photographic Raman instrument into a photoelectric Raman spectrometer. The reconstructed instrument was tested by using a scanning-slit mechanism in the focal plane of the camera lens of a grating spectrograph. A photomultiplier tube served as the detector and was operated in a vacuum housing at the temperature of liquid nitrogen. A tetrode electrometer tube in a low gain circuit yielded a nearly linear output which was graphically recorded. A spiral mercury arc provided sufficient illumination to enable reproduction of intensity measurements to within ±1 percent at a scanning rate of about 3 cm⁻¹ per second. An automatic range changing device extends the range of intensities which can be recorded on the normal ten-inch chart.

© 1953 Optical Society of America

Photoelectric Raman Spectrometer with Automatic Range Changing. II. Conversion of Perkin-Elmer Infrared Instrument to Grating Type

Robert F. Stamm and C. F. Salzman
J. Opt. Soc. Am. 43(2) 126-137 (1953)

Errata: Photoelectric Raman Spectrometer with Automatic Range Changing. I. Conversion of Photographic Instrument

R. F. Stamm, C. F. Salzman, and T. Mariner
J. Opt. Soc. Am. 43(12) 1231_3-1231 (1953)

Errata: Photoelectric Raman Spectrometer with Automatic Range Changing. II. Conversion of Perkin-Elmer Infrared Instrument to Grating Type

R. F. Stamm and C. F. Salzman
J. Opt. Soc. Am. 43(12) 1231_4-1231 (1953)

An Automatic Recording Photographic Densitometer*

George Barnes
J. Opt. Soc. Am. 43(12) 1176-1180 (1953)

Photoelectric Raman Spectrometer

John U. White, Nelson L. Alpert, and Arthur G. DeBell
J. Opt. Soc. Am. 45(3) 154-166 (1955)