Abstract

The desirability of very high temperature sources for infra-red spectroscopy is pointed out. The crater radiation of the low intensity carbon arc is examined and recommended for practical use in this application. Details of arc mounting and use are given.

© 1950 Optical Society of America

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References

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  1. A publication by other workers mentions simultaneous and independent use of the arc source for the lead sulfide spectral region. McMath, Mohler, Pierce, and Goldberg, Phys. Rev. 76, 1533 (1949).
    [Crossref]
  2. J. Strong, J. Opt. Soc. Am. 39, 320 (1949).
    [Crossref] [PubMed]
  3. H. G. Macpherson in Temperature, Its Measurement and Control in Science and Industry (Papers from a Symposium under the auspices of the American Institute of Physics) (Reinhold, New York, 1941), p. 1141.
  4. L. Smith, Rev. Sci. Inst. 13, 54 (1942); Rev. Sci. Inst. 13, 63 (1942).
    [Crossref]
  5. J. Strong, J. Frank. Inst. 232, 7 (1941).
  6. I. S. Bowen, Astrophys. J. 88, 113 (1938).
    [Crossref]
  7. Hettner, Pohlman, and Schumacher, Zeits. f. Physik 91, 372 (1934).
    [Crossref]
  8. G. Herzberg, Molecular Spectra and Molecular Structure, Diatomic Molecules (Prentice-Hall, New York, 1939), p. 485.
  9. W. Finkelnberg, The High Current Carbon Arc (, Department of Commerce, Washington, D. C., 1947); J. App. Phys. 20, 468 (1949).
    [Crossref]

1949 (2)

A publication by other workers mentions simultaneous and independent use of the arc source for the lead sulfide spectral region. McMath, Mohler, Pierce, and Goldberg, Phys. Rev. 76, 1533 (1949).
[Crossref]

J. Strong, J. Opt. Soc. Am. 39, 320 (1949).
[Crossref] [PubMed]

1942 (1)

L. Smith, Rev. Sci. Inst. 13, 54 (1942); Rev. Sci. Inst. 13, 63 (1942).
[Crossref]

1941 (1)

J. Strong, J. Frank. Inst. 232, 7 (1941).

1938 (1)

I. S. Bowen, Astrophys. J. 88, 113 (1938).
[Crossref]

1934 (1)

Hettner, Pohlman, and Schumacher, Zeits. f. Physik 91, 372 (1934).
[Crossref]

Bowen, I. S.

I. S. Bowen, Astrophys. J. 88, 113 (1938).
[Crossref]

Finkelnberg, W.

W. Finkelnberg, The High Current Carbon Arc (, Department of Commerce, Washington, D. C., 1947); J. App. Phys. 20, 468 (1949).
[Crossref]

Goldberg,

A publication by other workers mentions simultaneous and independent use of the arc source for the lead sulfide spectral region. McMath, Mohler, Pierce, and Goldberg, Phys. Rev. 76, 1533 (1949).
[Crossref]

Herzberg, G.

G. Herzberg, Molecular Spectra and Molecular Structure, Diatomic Molecules (Prentice-Hall, New York, 1939), p. 485.

Hettner,

Hettner, Pohlman, and Schumacher, Zeits. f. Physik 91, 372 (1934).
[Crossref]

Macpherson, H. G.

H. G. Macpherson in Temperature, Its Measurement and Control in Science and Industry (Papers from a Symposium under the auspices of the American Institute of Physics) (Reinhold, New York, 1941), p. 1141.

McMath,

A publication by other workers mentions simultaneous and independent use of the arc source for the lead sulfide spectral region. McMath, Mohler, Pierce, and Goldberg, Phys. Rev. 76, 1533 (1949).
[Crossref]

Mohler,

A publication by other workers mentions simultaneous and independent use of the arc source for the lead sulfide spectral region. McMath, Mohler, Pierce, and Goldberg, Phys. Rev. 76, 1533 (1949).
[Crossref]

Pierce,

A publication by other workers mentions simultaneous and independent use of the arc source for the lead sulfide spectral region. McMath, Mohler, Pierce, and Goldberg, Phys. Rev. 76, 1533 (1949).
[Crossref]

Pohlman,

Hettner, Pohlman, and Schumacher, Zeits. f. Physik 91, 372 (1934).
[Crossref]

Schumacher,

Hettner, Pohlman, and Schumacher, Zeits. f. Physik 91, 372 (1934).
[Crossref]

Smith, L.

L. Smith, Rev. Sci. Inst. 13, 54 (1942); Rev. Sci. Inst. 13, 63 (1942).
[Crossref]

Strong, J.

J. Strong, J. Opt. Soc. Am. 39, 320 (1949).
[Crossref] [PubMed]

J. Strong, J. Frank. Inst. 232, 7 (1941).

Astrophys. J. (1)

I. S. Bowen, Astrophys. J. 88, 113 (1938).
[Crossref]

J. Frank. Inst. (1)

J. Strong, J. Frank. Inst. 232, 7 (1941).

J. Opt. Soc. Am. (1)

Phys. Rev. (1)

A publication by other workers mentions simultaneous and independent use of the arc source for the lead sulfide spectral region. McMath, Mohler, Pierce, and Goldberg, Phys. Rev. 76, 1533 (1949).
[Crossref]

Rev. Sci. Inst. (1)

L. Smith, Rev. Sci. Inst. 13, 54 (1942); Rev. Sci. Inst. 13, 63 (1942).
[Crossref]

Zeits. f. Physik (1)

Hettner, Pohlman, and Schumacher, Zeits. f. Physik 91, 372 (1934).
[Crossref]

Other (3)

G. Herzberg, Molecular Spectra and Molecular Structure, Diatomic Molecules (Prentice-Hall, New York, 1939), p. 485.

W. Finkelnberg, The High Current Carbon Arc (, Department of Commerce, Washington, D. C., 1947); J. App. Phys. 20, 468 (1949).
[Crossref]

H. G. Macpherson in Temperature, Its Measurement and Control in Science and Industry (Papers from a Symposium under the auspices of the American Institute of Physics) (Reinhold, New York, 1941), p. 1141.

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Figures (5)

Fig. 1
Fig. 1

Atmospheric water spectrum near 2.8μ with 1400°K. Globar and with carbon arc sources. The straight, horizontal sections of the record at the extreme right and left are the zero line with the radiation shut off. The amount of scattered light may be judged from the completely black water bands toward the right.

Fig. 2
Fig. 2

Atmospheric water spectrum around 6.5μ with 1175°K. Globar and with carbon arc sources.

Fig. 3
Fig. 3

Spectrum of NH3 near 10μ with 1175°K. Globar and with carbon arc sources.

Fig. 4
Fig. 4

The ratio R of signal obtained with a carbon arc source and with 1175°K. Globar under identical circumstances, plotted as a function of wave-length.

Fig. 5
Fig. 5

Modification of an obsolescent motion picture projection arc for use as a spectrographic source.