Abstract

A mounting for two photomultiplier tubes for the Baird spectrograph is described. Leeds and Northrup experimental preamplifiers and ratio recorder are used in conjunction with the photomultipliers. The 60-cycle ac signal system is described. The equipment has been used in three analytical problems: the determination of Li in the flame, uranium isotopic determinations using the hollow cathode and the spark, and the copper spark determination of scandium. The precision of the uranium isotopic determination is discussed.

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  1. G. H. Dieke, War Production Board Report W 193, 1945.
  2. G. H. Dieke and H. M. Crosswhite, J. Opt. Soc. Am. 35, 471 (1945).
  3. H. M. Crosswhite, Spectrochim. Acta 4, 122 (1950).
  4. M. F. Hasler and H. W. Dietert, J. Opt. Soc. Am. 34, 751 (1944).
  5. Saunderson, Caldecourt, and Peterson, J. Opt. Soc. Am. 35, 696 (1945).
  6. A. Hans, Compt. rend. recherches, Bruxelles, No. 1, 85 (November, 1949).
  7. Fred, Nachtrieb, and Tomkins, J. Opt. Soc. Am. 37, 294 (1947).
  8. G. H. Dieke, private communication.
  9. Gilbert, Hawes, and Beckman, Anal. Chem. 22, 772 (1950).
  10. Stukenbroeker, Adams, and Burkhart, Document Y-20 (September 22, 1947).
  11. J. Rand McNally, Jr., J. Opt. Soc. Am. 39, 271 (1949).
  12. H. Schiüler and H. Gollnow, Z. Physik 93, 611 (1935).
  13. Smith, Stukenbroeker, and McNally, Jr., Document Y-433 (June 10, 1949).
  14. P. H. van Cittert, Z. Physik 65, 547 (1930).
  15. P. H. van Cittert, Z. Physik 69, 298 (1931).
  16. Harrison, Lord, and Loofbourow, Practical Spectroscopy (Prentice-Hall, Inc., New York, 1948), p. 120.

Crosswhite, H. M.

G. H. Dieke and H. M. Crosswhite, J. Opt. Soc. Am. 35, 471 (1945).

H. M. Crosswhite, Spectrochim. Acta 4, 122 (1950).

Dieke, G. H.

G. H. Dieke, War Production Board Report W 193, 1945.

G. H. Dieke and H. M. Crosswhite, J. Opt. Soc. Am. 35, 471 (1945).

G. H. Dieke, private communication.

Dietert, H. W.

M. F. Hasler and H. W. Dietert, J. Opt. Soc. Am. 34, 751 (1944).

Gollnow, H.

H. Schiüler and H. Gollnow, Z. Physik 93, 611 (1935).

Hans, A.

A. Hans, Compt. rend. recherches, Bruxelles, No. 1, 85 (November, 1949).

Hasler, M. F.

M. F. Hasler and H. W. Dietert, J. Opt. Soc. Am. 34, 751 (1944).

McNally, Jr.,

Smith, Stukenbroeker, and McNally, Jr., Document Y-433 (June 10, 1949).

McNally, Jr., J. Rand

J. Rand McNally, Jr., J. Opt. Soc. Am. 39, 271 (1949).

Schiüler, H.

H. Schiüler and H. Gollnow, Z. Physik 93, 611 (1935).

van Cittert, P. H.

P. H. van Cittert, Z. Physik 65, 547 (1930).

P. H. van Cittert, Z. Physik 69, 298 (1931).

Other (16)

G. H. Dieke, War Production Board Report W 193, 1945.

G. H. Dieke and H. M. Crosswhite, J. Opt. Soc. Am. 35, 471 (1945).

H. M. Crosswhite, Spectrochim. Acta 4, 122 (1950).

M. F. Hasler and H. W. Dietert, J. Opt. Soc. Am. 34, 751 (1944).

Saunderson, Caldecourt, and Peterson, J. Opt. Soc. Am. 35, 696 (1945).

A. Hans, Compt. rend. recherches, Bruxelles, No. 1, 85 (November, 1949).

Fred, Nachtrieb, and Tomkins, J. Opt. Soc. Am. 37, 294 (1947).

G. H. Dieke, private communication.

Gilbert, Hawes, and Beckman, Anal. Chem. 22, 772 (1950).

Stukenbroeker, Adams, and Burkhart, Document Y-20 (September 22, 1947).

J. Rand McNally, Jr., J. Opt. Soc. Am. 39, 271 (1949).

H. Schiüler and H. Gollnow, Z. Physik 93, 611 (1935).

Smith, Stukenbroeker, and McNally, Jr., Document Y-433 (June 10, 1949).

P. H. van Cittert, Z. Physik 65, 547 (1930).

P. H. van Cittert, Z. Physik 69, 298 (1931).

Harrison, Lord, and Loofbourow, Practical Spectroscopy (Prentice-Hall, Inc., New York, 1948), p. 120.

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