Abstract

An experiment designed to measure the spectral emissivity of tungsten, in which a direct comparison method is utilized so that the spectral emissivity is observed directly as the ratio of light intensity from a tungsten source to that from a blackbody source, is described. The spectral emissivity was measured over the wavelength interval 310 mµ to 800 mµ, and the temperature interval 1600°K to 2400°K.

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  1. J. C. De Vos, Physica 20, 669, 690 (1954).
  2. H. F. Kurtz, J. Opt. Soc. Am. 13, 495 (1926).
  3. W. E. Forsythe, Measurement of Radiant Energy (McGraw-Hill Book Company, Inc., New York, 1937), first edition, p. 119.
  4. H. Shelton, "Thermionic emission from a planar tantalum crystal," Ph.D. thesis, Department of Physics, MIT (May 14, 1956).
  5. A. G. Worthing, J. Opt. Soc. Am. 13, 635 (1926).
  6. W. B. Nottingham and W. E. Mutter, Phys. Rev. 74, 1261 (1948).
  7. W. E. Forsythe and E. Q. Adams, J. Opt. Soc. Am. 35, 108 (1945).
  8. H. C. Hamaker, Physica 3, 561 (1936).
  9. For further information about this experiment, see R. D. Larrabee, "The spectral emissivity and optical properties of tungsten," Tech. Rept. 328, Research Laboratory of Electronics, MIT (April 21, 1957).

Adams, E. Q.

W. E. Forsythe and E. Q. Adams, J. Opt. Soc. Am. 35, 108 (1945).

De Vos, J. C.

J. C. De Vos, Physica 20, 669, 690 (1954).

Forsythe, W. E.

W. E. Forsythe, Measurement of Radiant Energy (McGraw-Hill Book Company, Inc., New York, 1937), first edition, p. 119.

W. E. Forsythe and E. Q. Adams, J. Opt. Soc. Am. 35, 108 (1945).

Hamaker, H. C.

H. C. Hamaker, Physica 3, 561 (1936).

Kurtz, H. F.

H. F. Kurtz, J. Opt. Soc. Am. 13, 495 (1926).

Larrabee, R. D.

For further information about this experiment, see R. D. Larrabee, "The spectral emissivity and optical properties of tungsten," Tech. Rept. 328, Research Laboratory of Electronics, MIT (April 21, 1957).

Mutter, W. E.

W. B. Nottingham and W. E. Mutter, Phys. Rev. 74, 1261 (1948).

Nottingham, W. B.

W. B. Nottingham and W. E. Mutter, Phys. Rev. 74, 1261 (1948).

Shelton, H.

H. Shelton, "Thermionic emission from a planar tantalum crystal," Ph.D. thesis, Department of Physics, MIT (May 14, 1956).

Worthing, A. G.

A. G. Worthing, J. Opt. Soc. Am. 13, 635 (1926).

Other (9)

J. C. De Vos, Physica 20, 669, 690 (1954).

H. F. Kurtz, J. Opt. Soc. Am. 13, 495 (1926).

W. E. Forsythe, Measurement of Radiant Energy (McGraw-Hill Book Company, Inc., New York, 1937), first edition, p. 119.

H. Shelton, "Thermionic emission from a planar tantalum crystal," Ph.D. thesis, Department of Physics, MIT (May 14, 1956).

A. G. Worthing, J. Opt. Soc. Am. 13, 635 (1926).

W. B. Nottingham and W. E. Mutter, Phys. Rev. 74, 1261 (1948).

W. E. Forsythe and E. Q. Adams, J. Opt. Soc. Am. 35, 108 (1945).

H. C. Hamaker, Physica 3, 561 (1936).

For further information about this experiment, see R. D. Larrabee, "The spectral emissivity and optical properties of tungsten," Tech. Rept. 328, Research Laboratory of Electronics, MIT (April 21, 1957).

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