Abstract

To date 268 even and 255 odd atomic energy levels in Th i have been found. The lowest level of the configuration 5f 6d 7s2 is 3H40 and lies 7795.27 cm−1 above the ground level 3F2 of 6d2 7s2. Some levels of 5f 6d2 7s and 6d2 7s 7p are identified.

© 1968 Optical Society of America

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References

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  1. R. Zalubas, New Description of Thorium Spectra, Natl. Bur. Std. (U. S.) Monograph 17 (U. S. Government Printing Office, Washington, D. C., 1960).
  2. J. Sugar, J. Opt. Soc. Am. 53, 831 (1963).
    [Crossref]
  3. A. Giacchetti, Averages of Interferometric Measurements of Thorium Lines, ANL–7209, Argonne National Laboratory (1966).
    [Crossref]
  4. M. L. Kuder, J. Res. Natl. Bur. Std. (U. S.) 65C, 1 (1961).
    [Crossref]
  5. R. Zalubas, J. Res. Natl. Bur. Std. (U. S.) 63A, 275 (1959).
    [Crossref]
  6. Ph. Schuurmans, dissertation, Amsterdam (1946).
  7. R. Zalubas, Abstract, Spectroscopy Symposium at Natl. Bur. Std. (U. S.) (U. S. Govt. Printing Office, Washington, D. C., 1967).
  8. J. L. Tech, private communication (1967).
  9. R. E. Trees, Physica 26, 353 (1960).
    [Crossref]
  10. W. C. Martin, J. Opt. Soc. Am. 53, 1047 (1963).
    [Crossref]
  11. (a)G. Racah, Physica 16, 651 (1950); (b)P. F. A. Klinkenberg, Physica 16, 618 (1950).
  12. E. B. M. Steers, Spectrochim. Acta23B, 1365 (197).

1963 (2)

1961 (1)

M. L. Kuder, J. Res. Natl. Bur. Std. (U. S.) 65C, 1 (1961).
[Crossref]

1960 (1)

R. E. Trees, Physica 26, 353 (1960).
[Crossref]

1959 (1)

R. Zalubas, J. Res. Natl. Bur. Std. (U. S.) 63A, 275 (1959).
[Crossref]

1950 (1)

(a)G. Racah, Physica 16, 651 (1950); (b)P. F. A. Klinkenberg, Physica 16, 618 (1950).

Giacchetti, A.

A. Giacchetti, Averages of Interferometric Measurements of Thorium Lines, ANL–7209, Argonne National Laboratory (1966).
[Crossref]

Kuder, M. L.

M. L. Kuder, J. Res. Natl. Bur. Std. (U. S.) 65C, 1 (1961).
[Crossref]

Martin, W. C.

Racah, G.

(a)G. Racah, Physica 16, 651 (1950); (b)P. F. A. Klinkenberg, Physica 16, 618 (1950).

Schuurmans, Ph.

Ph. Schuurmans, dissertation, Amsterdam (1946).

Steers, E. B. M.

E. B. M. Steers, Spectrochim. Acta23B, 1365 (197).

Sugar, J.

Tech, J. L.

J. L. Tech, private communication (1967).

Trees, R. E.

R. E. Trees, Physica 26, 353 (1960).
[Crossref]

Zalubas, R.

R. Zalubas, J. Res. Natl. Bur. Std. (U. S.) 63A, 275 (1959).
[Crossref]

R. Zalubas, Abstract, Spectroscopy Symposium at Natl. Bur. Std. (U. S.) (U. S. Govt. Printing Office, Washington, D. C., 1967).

R. Zalubas, New Description of Thorium Spectra, Natl. Bur. Std. (U. S.) Monograph 17 (U. S. Government Printing Office, Washington, D. C., 1960).

J. Opt. Soc. Am. (2)

J. Res. Natl. Bur. Std. (U. S.) (2)

M. L. Kuder, J. Res. Natl. Bur. Std. (U. S.) 65C, 1 (1961).
[Crossref]

R. Zalubas, J. Res. Natl. Bur. Std. (U. S.) 63A, 275 (1959).
[Crossref]

Physica (2)

R. E. Trees, Physica 26, 353 (1960).
[Crossref]

(a)G. Racah, Physica 16, 651 (1950); (b)P. F. A. Klinkenberg, Physica 16, 618 (1950).

Other (6)

E. B. M. Steers, Spectrochim. Acta23B, 1365 (197).

R. Zalubas, New Description of Thorium Spectra, Natl. Bur. Std. (U. S.) Monograph 17 (U. S. Government Printing Office, Washington, D. C., 1960).

A. Giacchetti, Averages of Interferometric Measurements of Thorium Lines, ANL–7209, Argonne National Laboratory (1966).
[Crossref]

Ph. Schuurmans, dissertation, Amsterdam (1946).

R. Zalubas, Abstract, Spectroscopy Symposium at Natl. Bur. Std. (U. S.) (U. S. Govt. Printing Office, Washington, D. C., 1967).

J. L. Tech, private communication (1967).

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Tables (2)

Tables Icon

Table I Even energy levels of Th i.

Tables Icon

Table II Odd energy levels of Th i.