Abstract

Interferometric wavelengths, suitable for use as secondary standards of class “B”, are given for 68 thorium lines in the range 2650 to 3400 A, as emitted by a thorium-iodide electrodeless discharge tube without carrier gas. The rms deviation from the mean is 3×10−4 A. The method of preparation of a reliable and very intense thorium electrodeless tube is described.

© 1962 Optical Society of America

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References

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  1. B. Edlén, Trans. Intern. Astron. Union 10, 211 (1960).
  2. W. F. Meggers and R. W. Stanley, J. Research Natl. Bur. Standards 61, 95 (1958).
    [Crossref]
  3. R. W. Stanley and W. F. Meggers, J. Research Natl. Bur. Standards 58, 41 (1957).
    [Crossref]
  4. H. M. Crosswhite, Johns Hopkins Spectroscopic Rept. No. 13 (1958).
  5. W. F. Meggers, Trans. Intern. Astron. Union 9, 225 (1955).
  6. M. Zelikoff, P. H. Wyckoff, L. M. Aschenbrand, and R. S. Loomis, J. Opt. Soc. Am. 42, 818 (1952).
    [Crossref]
  7. C. H. Corliss, W. R. Bozman, and F. O. Westfall, J. Opt. Soc. Am. 43, 398 (1953).
    [Crossref]
  8. F. S. Tomkins and M. Fred, J. Opt. Soc. Am. 47, 1087 (1957).
    [Crossref]
  9. J. Reader (private communication, June24, 1959).
  10. W. F. Meggers and F. O. Westfall, J. Research Natl. Bur. Standards 44, 447 (1950).
    [Crossref]
  11. K. M. Baird and D. S. Smith, Can. J. Phys. 35, 455 (1957).
    [Crossref]
  12. S. Tolansky, High Resolution Spectroscopy (Methuen and Company, Ltd., London, 1947).
  13. K. W. Meissner, J. Opt. Soc. Am. 31, 405 (1941).
    [Crossref]
  14. See, for example, C. V. Jackson, Proc. Roy. Soc. (London) A130, 395 (1930).
  15. D. Steinhaus, J. Opt. Soc. Am. 50, 672 (1960).
    [Crossref]
  16. V. K. Kaufman (private communication, July12, 1961).
  17. R. Zalubus, Natl. Bur. Standards Monograph 17, June21 (1960).
  18. B. Edlén, J. Opt. Soc. Am. 43, 339 (1953).
    [Crossref]
  19. T. A. Littlefield and W. A. Wood, Draft Report, Commission 14 of the I.A.U. (To be published in Trans. I.A.U.1962.)

1960 (3)

B. Edlén, Trans. Intern. Astron. Union 10, 211 (1960).

D. Steinhaus, J. Opt. Soc. Am. 50, 672 (1960).
[Crossref]

R. Zalubus, Natl. Bur. Standards Monograph 17, June21 (1960).

1958 (1)

W. F. Meggers and R. W. Stanley, J. Research Natl. Bur. Standards 61, 95 (1958).
[Crossref]

1957 (3)

R. W. Stanley and W. F. Meggers, J. Research Natl. Bur. Standards 58, 41 (1957).
[Crossref]

F. S. Tomkins and M. Fred, J. Opt. Soc. Am. 47, 1087 (1957).
[Crossref]

K. M. Baird and D. S. Smith, Can. J. Phys. 35, 455 (1957).
[Crossref]

1955 (1)

W. F. Meggers, Trans. Intern. Astron. Union 9, 225 (1955).

1953 (2)

1952 (1)

1950 (1)

W. F. Meggers and F. O. Westfall, J. Research Natl. Bur. Standards 44, 447 (1950).
[Crossref]

1941 (1)

1930 (1)

See, for example, C. V. Jackson, Proc. Roy. Soc. (London) A130, 395 (1930).

Aschenbrand, L. M.

Baird, K. M.

K. M. Baird and D. S. Smith, Can. J. Phys. 35, 455 (1957).
[Crossref]

Bozman, W. R.

Corliss, C. H.

Crosswhite, H. M.

H. M. Crosswhite, Johns Hopkins Spectroscopic Rept. No. 13 (1958).

Edlén, B.

B. Edlén, Trans. Intern. Astron. Union 10, 211 (1960).

B. Edlén, J. Opt. Soc. Am. 43, 339 (1953).
[Crossref]

Fred, M.

Jackson, C. V.

See, for example, C. V. Jackson, Proc. Roy. Soc. (London) A130, 395 (1930).

Kaufman, V. K.

V. K. Kaufman (private communication, July12, 1961).

Littlefield, T. A.

T. A. Littlefield and W. A. Wood, Draft Report, Commission 14 of the I.A.U. (To be published in Trans. I.A.U.1962.)

Loomis, R. S.

Meggers, W. F.

W. F. Meggers and R. W. Stanley, J. Research Natl. Bur. Standards 61, 95 (1958).
[Crossref]

R. W. Stanley and W. F. Meggers, J. Research Natl. Bur. Standards 58, 41 (1957).
[Crossref]

W. F. Meggers, Trans. Intern. Astron. Union 9, 225 (1955).

W. F. Meggers and F. O. Westfall, J. Research Natl. Bur. Standards 44, 447 (1950).
[Crossref]

Meissner, K. W.

Reader, J.

J. Reader (private communication, June24, 1959).

Smith, D. S.

K. M. Baird and D. S. Smith, Can. J. Phys. 35, 455 (1957).
[Crossref]

Stanley, R. W.

W. F. Meggers and R. W. Stanley, J. Research Natl. Bur. Standards 61, 95 (1958).
[Crossref]

R. W. Stanley and W. F. Meggers, J. Research Natl. Bur. Standards 58, 41 (1957).
[Crossref]

Steinhaus, D.

Tolansky, S.

S. Tolansky, High Resolution Spectroscopy (Methuen and Company, Ltd., London, 1947).

Tomkins, F. S.

Westfall, F. O.

C. H. Corliss, W. R. Bozman, and F. O. Westfall, J. Opt. Soc. Am. 43, 398 (1953).
[Crossref]

W. F. Meggers and F. O. Westfall, J. Research Natl. Bur. Standards 44, 447 (1950).
[Crossref]

Wood, W. A.

T. A. Littlefield and W. A. Wood, Draft Report, Commission 14 of the I.A.U. (To be published in Trans. I.A.U.1962.)

Wyckoff, P. H.

Zalubus, R.

R. Zalubus, Natl. Bur. Standards Monograph 17, June21 (1960).

Zelikoff, M.

Can. J. Phys. (1)

K. M. Baird and D. S. Smith, Can. J. Phys. 35, 455 (1957).
[Crossref]

J. Opt. Soc. Am. (6)

J. Research Natl. Bur. Standards (3)

W. F. Meggers and R. W. Stanley, J. Research Natl. Bur. Standards 61, 95 (1958).
[Crossref]

R. W. Stanley and W. F. Meggers, J. Research Natl. Bur. Standards 58, 41 (1957).
[Crossref]

W. F. Meggers and F. O. Westfall, J. Research Natl. Bur. Standards 44, 447 (1950).
[Crossref]

Natl. Bur. Standards Monograph (1)

R. Zalubus, Natl. Bur. Standards Monograph 17, June21 (1960).

Proc. Roy. Soc. (London) (1)

See, for example, C. V. Jackson, Proc. Roy. Soc. (London) A130, 395 (1930).

Trans. Intern. Astron. Union (2)

B. Edlén, Trans. Intern. Astron. Union 10, 211 (1960).

W. F. Meggers, Trans. Intern. Astron. Union 9, 225 (1955).

Other (5)

H. M. Crosswhite, Johns Hopkins Spectroscopic Rept. No. 13 (1958).

J. Reader (private communication, June24, 1959).

S. Tolansky, High Resolution Spectroscopy (Methuen and Company, Ltd., London, 1947).

V. K. Kaufman (private communication, July12, 1961).

T. A. Littlefield and W. A. Wood, Draft Report, Commission 14 of the I.A.U. (To be published in Trans. I.A.U.1962.)

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Figures (1)

Fig. 1
Fig. 1

Arrangement for preparation of electrodeless discharge tubes.

Tables (2)

Tables Icon

Table I Wavelengths of Hg 198 lines from a 1 4 mm Hg Meggers tube.

Tables Icon

Table II Wavelengths of thorium lines from an electrodeless discharge tube.

Equations (2)

Equations on this page are rendered with MathJax. Learn more.

Δ D 2 = ( 4 f 2 / t ) λ ,
( Δ D 2 / λ ) = A + B λ .