Abstract

A total of about 240 spectral lines of <sup>86</sup>Kr I has been measured interferometrically during the past decade. Some have been measured in only one laboratory while others have been measured in as many as 12. On the whole, the agreement is good, but some discrepancies appear. For this work, almost all of the wavelengths have been averaged and used for the determination of a best set of energy-level values for this isotope of krypton. Forty-five even and 66 odd levels have been calculated by the method of least squares, with uncertainties ranging from ±0.0001 to ±0.0016 cm<sup>-1</sup>. These interferometrically determined levels have, in turn, been used to calculate a completely consistent set of wavelengths that are preferable to any single set of measurements or averages of measurements of <sup>86</sup>Kr I. The list of 530 lines contains only those calculable transitions that have been observed from krypton sources in the spectral region 3300–40 700 Å. With the exception of a number of weak lines and some close pairs, the final list of wavelengths is recommended for consideration for adoption as secondary standards.

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  1. Compt. Rend. Conf. Poids Mes. 6, 85 (1960). For detailed account of the deliberations leading to the specific action mentioned see also: Trans. Intern. Astron. Union IX, 201 (1955); X, 211 (1958); Procès Verbaux Com. Int. Poids Mes. 2θ ser 24, 1γθ session (1953), Com. Consultatif Définition Mètre (1954); 2θ série 26-B, 2θ session (1957), Com. Consutatif Définition Mètre (1958).
  2. Procès Verbaux du C.I.P.M., October 1960. See also Trans. Intern. Astron. Union 11A, 97 (1961).
  3. C. J. Humphreys (Material presented orally to the I.A.U., 1967; ultraviolet observations made, 1968).
  4. A. H. Cook, J. Opt. Soc. Am. 55, 780 (1965).
  5. B. Edlén, Trans. Intern. Astron. Union 12A, 139 (1964).
  6. V. Kaufman (Data in Tables 1 and 2 presented to I.A.U., 1967).
  7. F. M. Phelps III, J. Opt. Soc. Am. 54, 864 (1964).
  8. T. A. Littlefield and G. R. Sharp, Trans. Intern. Astron. Union 12A, 143 (1965).
  9. K. M. Baird, D. S. Smith, and K. H. Hart, J. Opt. Soc. Am. 53, 717 (1963).
  10. E. Engelhard, C.C.D.M. 3e session (1962), p. 110.
  11. J. Terrien and J. Hamon, Ref. 10, p. 77.
  12. C. F. Bruce, Ref. 10, p. 115.
  13. T. Masui, Ref. 10, p. 156.
  14. N. R. Batarchoukova, A. I. Kartachev, and Y. P. Efremov, Ref. 10, p. 124.
  15. C.C.D.M. 3e session (1962), p. 18.
  16. R. S. Varga, Matrix Iterative Analysis (Prentice-Hall Inc., Englewood Cliffs, N. J., 1962), p. 56.
  17. Bernt Petersson, Arkiv Fysik 27, 317 (1964).
  18. Bengt Edlén, Metrologia 2, 71 (1966).
  19. W. Gremmer, Z. Physik 54, 199 (1929), and 73, 620 (1932).
  20. W. F. Meggers, T. L. de Bruin, and C. J. Humphreys, J. Res. Natl. Bur. Std. (U. S.) 3, 129 (1929), RP 89, and 7, 643 (1931), RP 364.
  21. W. F. Meggers and C. J. Humphreys, J. Res. Natl. Bur. Std. (U. S.) 10, 427 (1933), RP 540.
  22. W. F. Meggers, J. Res. Natl. Bur. Std. (U. S.) 14, 487 (1935), RP 781.
  23. W. R. Sittner and E R. Peck, J. Opt. Soc. Am. 39, 474 (1949).
  24. C. J. Humphreys and H. J. Kostkowski, J. Res. Natl. Bur. Std. (U. S.) 49, 73 (1952), RP 2345.
  25. E. Paul, Jr. and C. J. Humphreys, J. Opt. Soc. Am. 49, 1186 (1959).
  26. C. J. Humphreys, E. Paul, Jr., R. D. Cowan, and K. L. Andrew, J. Opt. Soc. Am. 57, 855 (1967).
  27. C. J. Humphreys and E. Paul, Jr., J. Opt. Soc. Am. 50, 510A (1960).
  28. C. J. Humphreys, K. B. Adams, and A. Weiss, J. Opt. Soc. Am. 51, 1465A (1961).
  29. K. N. Rao, C. J. Humphreys, and D. H. Rank, Wavelength Standards in the Infrared (Academic Press Inc., New York, 1966), pp. 52 ff.
  30. G. Norlén, private communication.
  31. J. Terrien, private communication.

Adams, K. B.

C. J. Humphreys, K. B. Adams, and A. Weiss, J. Opt. Soc. Am. 51, 1465A (1961).

Andrew, K. L.

C. J. Humphreys, E. Paul, Jr., R. D. Cowan, and K. L. Andrew, J. Opt. Soc. Am. 57, 855 (1967).

Baird, K. M.

K. M. Baird, D. S. Smith, and K. H. Hart, J. Opt. Soc. Am. 53, 717 (1963).

Batarchoukova, N. R.

N. R. Batarchoukova, A. I. Kartachev, and Y. P. Efremov, Ref. 10, p. 124.

Bruce, C. F.

C. F. Bruce, Ref. 10, p. 115.

Cook, A. H.

A. H. Cook, J. Opt. Soc. Am. 55, 780 (1965).

Cowan, R. D.

C. J. Humphreys, E. Paul, Jr., R. D. Cowan, and K. L. Andrew, J. Opt. Soc. Am. 57, 855 (1967).

de Bruin, T. L.

W. F. Meggers, T. L. de Bruin, and C. J. Humphreys, J. Res. Natl. Bur. Std. (U. S.) 3, 129 (1929), RP 89, and 7, 643 (1931), RP 364.

Edlén, B.

B. Edlén, Trans. Intern. Astron. Union 12A, 139 (1964).

Edlén, Bengt

Bengt Edlén, Metrologia 2, 71 (1966).

Efremov, Y. P.

N. R. Batarchoukova, A. I. Kartachev, and Y. P. Efremov, Ref. 10, p. 124.

Engelhard, E.

E. Engelhard, C.C.D.M. 3e session (1962), p. 110.

Gremmer, W.

W. Gremmer, Z. Physik 54, 199 (1929), and 73, 620 (1932).

Hamon, J.

J. Terrien and J. Hamon, Ref. 10, p. 77.

Hart, K. H.

K. M. Baird, D. S. Smith, and K. H. Hart, J. Opt. Soc. Am. 53, 717 (1963).

Humphreys, C. J.

C. J. Humphreys, E. Paul, Jr., R. D. Cowan, and K. L. Andrew, J. Opt. Soc. Am. 57, 855 (1967).

C. J. Humphreys and E. Paul, Jr., J. Opt. Soc. Am. 50, 510A (1960).

W. F. Meggers and C. J. Humphreys, J. Res. Natl. Bur. Std. (U. S.) 10, 427 (1933), RP 540.

K. N. Rao, C. J. Humphreys, and D. H. Rank, Wavelength Standards in the Infrared (Academic Press Inc., New York, 1966), pp. 52 ff.

C. J. Humphreys, K. B. Adams, and A. Weiss, J. Opt. Soc. Am. 51, 1465A (1961).

E. Paul, Jr. and C. J. Humphreys, J. Opt. Soc. Am. 49, 1186 (1959).

W. F. Meggers, T. L. de Bruin, and C. J. Humphreys, J. Res. Natl. Bur. Std. (U. S.) 3, 129 (1929), RP 89, and 7, 643 (1931), RP 364.

C. J. Humphreys (Material presented orally to the I.A.U., 1967; ultraviolet observations made, 1968).

C. J. Humphreys and H. J. Kostkowski, J. Res. Natl. Bur. Std. (U. S.) 49, 73 (1952), RP 2345.

Kartachev, A. I.

N. R. Batarchoukova, A. I. Kartachev, and Y. P. Efremov, Ref. 10, p. 124.

Kaufman, V.

V. Kaufman (Data in Tables 1 and 2 presented to I.A.U., 1967).

Kostkowski, H. J.

C. J. Humphreys and H. J. Kostkowski, J. Res. Natl. Bur. Std. (U. S.) 49, 73 (1952), RP 2345.

Littlefield, T. A.

T. A. Littlefield and G. R. Sharp, Trans. Intern. Astron. Union 12A, 143 (1965).

Masui, T.

T. Masui, Ref. 10, p. 156.

Meggers, W. F.

W. F. Meggers and C. J. Humphreys, J. Res. Natl. Bur. Std. (U. S.) 10, 427 (1933), RP 540.

W. F. Meggers, J. Res. Natl. Bur. Std. (U. S.) 14, 487 (1935), RP 781.

W. F. Meggers, T. L. de Bruin, and C. J. Humphreys, J. Res. Natl. Bur. Std. (U. S.) 3, 129 (1929), RP 89, and 7, 643 (1931), RP 364.

Norlén, G.

G. Norlén, private communication.

Paul, Jr., E.

C. J. Humphreys, E. Paul, Jr., R. D. Cowan, and K. L. Andrew, J. Opt. Soc. Am. 57, 855 (1967).

C. J. Humphreys and E. Paul, Jr., J. Opt. Soc. Am. 50, 510A (1960).

E. Paul, Jr. and C. J. Humphreys, J. Opt. Soc. Am. 49, 1186 (1959).

Peck, E R.

W. R. Sittner and E R. Peck, J. Opt. Soc. Am. 39, 474 (1949).

Petersson, Bernt

Bernt Petersson, Arkiv Fysik 27, 317 (1964).

Phelps III, F. M.

F. M. Phelps III, J. Opt. Soc. Am. 54, 864 (1964).

Rank, D. H.

K. N. Rao, C. J. Humphreys, and D. H. Rank, Wavelength Standards in the Infrared (Academic Press Inc., New York, 1966), pp. 52 ff.

Rao, K. N.

K. N. Rao, C. J. Humphreys, and D. H. Rank, Wavelength Standards in the Infrared (Academic Press Inc., New York, 1966), pp. 52 ff.

Sharp, G. R.

T. A. Littlefield and G. R. Sharp, Trans. Intern. Astron. Union 12A, 143 (1965).

Sittner, W. R.

W. R. Sittner and E R. Peck, J. Opt. Soc. Am. 39, 474 (1949).

Smith, D. S.

K. M. Baird, D. S. Smith, and K. H. Hart, J. Opt. Soc. Am. 53, 717 (1963).

Terrien, J.

J. Terrien and J. Hamon, Ref. 10, p. 77.

J. Terrien, private communication.

Varga, R. S.

R. S. Varga, Matrix Iterative Analysis (Prentice-Hall Inc., Englewood Cliffs, N. J., 1962), p. 56.

Weiss, A.

C. J. Humphreys, K. B. Adams, and A. Weiss, J. Opt. Soc. Am. 51, 1465A (1961).

Other

Compt. Rend. Conf. Poids Mes. 6, 85 (1960). For detailed account of the deliberations leading to the specific action mentioned see also: Trans. Intern. Astron. Union IX, 201 (1955); X, 211 (1958); Procès Verbaux Com. Int. Poids Mes. 2θ ser 24, 1γθ session (1953), Com. Consultatif Définition Mètre (1954); 2θ série 26-B, 2θ session (1957), Com. Consutatif Définition Mètre (1958).

Procès Verbaux du C.I.P.M., October 1960. See also Trans. Intern. Astron. Union 11A, 97 (1961).

C. J. Humphreys (Material presented orally to the I.A.U., 1967; ultraviolet observations made, 1968).

A. H. Cook, J. Opt. Soc. Am. 55, 780 (1965).

B. Edlén, Trans. Intern. Astron. Union 12A, 139 (1964).

V. Kaufman (Data in Tables 1 and 2 presented to I.A.U., 1967).

F. M. Phelps III, J. Opt. Soc. Am. 54, 864 (1964).

T. A. Littlefield and G. R. Sharp, Trans. Intern. Astron. Union 12A, 143 (1965).

K. M. Baird, D. S. Smith, and K. H. Hart, J. Opt. Soc. Am. 53, 717 (1963).

E. Engelhard, C.C.D.M. 3e session (1962), p. 110.

J. Terrien and J. Hamon, Ref. 10, p. 77.

C. F. Bruce, Ref. 10, p. 115.

T. Masui, Ref. 10, p. 156.

N. R. Batarchoukova, A. I. Kartachev, and Y. P. Efremov, Ref. 10, p. 124.

C.C.D.M. 3e session (1962), p. 18.

R. S. Varga, Matrix Iterative Analysis (Prentice-Hall Inc., Englewood Cliffs, N. J., 1962), p. 56.

Bernt Petersson, Arkiv Fysik 27, 317 (1964).

Bengt Edlén, Metrologia 2, 71 (1966).

W. Gremmer, Z. Physik 54, 199 (1929), and 73, 620 (1932).

W. F. Meggers, T. L. de Bruin, and C. J. Humphreys, J. Res. Natl. Bur. Std. (U. S.) 3, 129 (1929), RP 89, and 7, 643 (1931), RP 364.

W. F. Meggers and C. J. Humphreys, J. Res. Natl. Bur. Std. (U. S.) 10, 427 (1933), RP 540.

W. F. Meggers, J. Res. Natl. Bur. Std. (U. S.) 14, 487 (1935), RP 781.

W. R. Sittner and E R. Peck, J. Opt. Soc. Am. 39, 474 (1949).

C. J. Humphreys and H. J. Kostkowski, J. Res. Natl. Bur. Std. (U. S.) 49, 73 (1952), RP 2345.

E. Paul, Jr. and C. J. Humphreys, J. Opt. Soc. Am. 49, 1186 (1959).

C. J. Humphreys, E. Paul, Jr., R. D. Cowan, and K. L. Andrew, J. Opt. Soc. Am. 57, 855 (1967).

C. J. Humphreys and E. Paul, Jr., J. Opt. Soc. Am. 50, 510A (1960).

C. J. Humphreys, K. B. Adams, and A. Weiss, J. Opt. Soc. Am. 51, 1465A (1961).

K. N. Rao, C. J. Humphreys, and D. H. Rank, Wavelength Standards in the Infrared (Academic Press Inc., New York, 1966), pp. 52 ff.

G. Norlén, private communication.

J. Terrien, private communication.

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