Abstract

Relative A values of 131 W i and 116 W ii lines were measured in emission using a gas-driven shock tube as the spectroscopic source. Estimated accuracy of the relative data (3150–5600 Å) for each ionization stage is 6–50%. The ratio of ionic-to-neutral line strengths was determined within 30%. Wavelengths of 40 tungsten lines (3400–5300 Å) prominent in 1-eV plasmas, but not reported heretofore, were measured with typical reliability of ±0.2 Å. Experimental W i line strengths are compared with data of Corliss and Bozman and trends of disagreement are examined.

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. M. H. Miller, in Proceedings of Second Symposium on Research on Uranium Plasmas and their Technological Applications, Atlanta, 1971 (American Institute of Aeronautics and Astronautics, New York, 1972).
  2. R. H. Tourin, Spectroscopic Gas Temperature Measurement (Elsevier, Amsterdam, 1966).
  3. Origin and Distributions of the Elements, edited by L. H. Ahrens (Pergamon, London, 1968); C. W. Allen, Astrophysical Quantities (Athlone, London, 1955); A. G. W. Cameron, Astrophys. Lett. 1, 35 (1967).
  4. C. H. Corliss and W. R. Bozman, Experimental Transition Probabilities, Natl. Bur. Stand. Monograph No, 53 (U.S. Government Printing Office, Washington, D.C., 1962); C. H. Corliss and J. L. Tech, Oscillator Strengths and Transition Probabilities for 3288 Lines of Fe I, Natl. Bur. Stand. Monograph No. 108 (U.S. Government Printing Office, Washington, D. C, 1968); C. H. Corliss and B. Warner, Astrophys. J. Suppl. Ser. 8, 395 (1964).
    [CrossRef]
  5. J. M. Bridges and W. L. Wiese, Astrophys. J. 161, 71 (1970).
    [CrossRef]
  6. R. J. Takens, Astron. Astrophys. 5, 244 (1970).
  7. R. A. Bell and W. L. Upson, II, Astrophys. Lett. 9, 109 (1971).
  8. M. C. E. Huber and E. F. Tubbs, Astrophys. J. 177, 847 (1972).
    [CrossRef]
  9. H. R. Griem, Phys. Rev. 131, 1170 (1963).
    [CrossRef]
  10. H. R. Griem, Phys. Rev. 128, 997 (1962).
    [CrossRef]
  11. M. H. Miller, R. A. Roig, and R. D. Bengtson, Phys. Rev. A 4, 1709 (1971); R. D. Bengtson, M. H. Miller, D. W. Koopman, and T. D. Wilkerson, Phys. Rev. A 3, 16 (1971); R. D. Bengtson, M. H. Miller, D. W. Koopman, and T. D. Wilkerson, Phys. Fluids 13, 372 (1970); M. H. Miller and R. D. Bengtson, Phys. Rev. A 1, 983 (1970).
    [CrossRef]
  12. W. H. Parkinson, Harvard College Observatory (private communication).
  13. W. R. S. Garton, W. H. Parkinson, and E. M. Reeves, Proc. Phys. Soc. Lond. 88, 771 (1966); M. H. Miller and R. D. Bengtson, J. Quant. Spectrosc. Radiat. Transfer 9, 1573 (1969).
    [CrossRef]
  14. S. M. Wood and M. H. Miller, Rev. Sci. Instrum. 41, 1196 (1970).
    [CrossRef]
  15. R. A. Bell, R. D. Bengtson, D. R. Branch, D. M. Gottlieb, and R. Roig, University of Maryland Report No. BN 572 (1968).
  16. D. D. Laun, J. Res. Natl. Bur. Stand. (U.S.) 21, 207 (1938); D. D. Laun and C. H. Corliss, J. Res. Natl. Bur. Stand.(U.S.) A 72, 609 (1968); C. H. Corliss, J. Res. Natl. Bur. Stand. (U.S.) A 73, 277 (1969).
    [CrossRef]
  17. D. D. Laun, J. Res. Natl. Bur. Stand. (U.S.) A 68, 207 (1964).
    [CrossRef]

1972 (1)

M. C. E. Huber and E. F. Tubbs, Astrophys. J. 177, 847 (1972).
[CrossRef]

1971 (2)

M. H. Miller, R. A. Roig, and R. D. Bengtson, Phys. Rev. A 4, 1709 (1971); R. D. Bengtson, M. H. Miller, D. W. Koopman, and T. D. Wilkerson, Phys. Rev. A 3, 16 (1971); R. D. Bengtson, M. H. Miller, D. W. Koopman, and T. D. Wilkerson, Phys. Fluids 13, 372 (1970); M. H. Miller and R. D. Bengtson, Phys. Rev. A 1, 983 (1970).
[CrossRef]

R. A. Bell and W. L. Upson, II, Astrophys. Lett. 9, 109 (1971).

1970 (3)

J. M. Bridges and W. L. Wiese, Astrophys. J. 161, 71 (1970).
[CrossRef]

R. J. Takens, Astron. Astrophys. 5, 244 (1970).

S. M. Wood and M. H. Miller, Rev. Sci. Instrum. 41, 1196 (1970).
[CrossRef]

1968 (1)

R. A. Bell, R. D. Bengtson, D. R. Branch, D. M. Gottlieb, and R. Roig, University of Maryland Report No. BN 572 (1968).

1966 (1)

W. R. S. Garton, W. H. Parkinson, and E. M. Reeves, Proc. Phys. Soc. Lond. 88, 771 (1966); M. H. Miller and R. D. Bengtson, J. Quant. Spectrosc. Radiat. Transfer 9, 1573 (1969).
[CrossRef]

1964 (1)

D. D. Laun, J. Res. Natl. Bur. Stand. (U.S.) A 68, 207 (1964).
[CrossRef]

1963 (1)

H. R. Griem, Phys. Rev. 131, 1170 (1963).
[CrossRef]

1962 (2)

H. R. Griem, Phys. Rev. 128, 997 (1962).
[CrossRef]

C. H. Corliss and W. R. Bozman, Experimental Transition Probabilities, Natl. Bur. Stand. Monograph No, 53 (U.S. Government Printing Office, Washington, D.C., 1962); C. H. Corliss and J. L. Tech, Oscillator Strengths and Transition Probabilities for 3288 Lines of Fe I, Natl. Bur. Stand. Monograph No. 108 (U.S. Government Printing Office, Washington, D. C, 1968); C. H. Corliss and B. Warner, Astrophys. J. Suppl. Ser. 8, 395 (1964).
[CrossRef]

1938 (1)

D. D. Laun, J. Res. Natl. Bur. Stand. (U.S.) 21, 207 (1938); D. D. Laun and C. H. Corliss, J. Res. Natl. Bur. Stand.(U.S.) A 72, 609 (1968); C. H. Corliss, J. Res. Natl. Bur. Stand. (U.S.) A 73, 277 (1969).
[CrossRef]

Bell, R. A.

R. A. Bell and W. L. Upson, II, Astrophys. Lett. 9, 109 (1971).

R. A. Bell, R. D. Bengtson, D. R. Branch, D. M. Gottlieb, and R. Roig, University of Maryland Report No. BN 572 (1968).

Bengtson, R. D.

M. H. Miller, R. A. Roig, and R. D. Bengtson, Phys. Rev. A 4, 1709 (1971); R. D. Bengtson, M. H. Miller, D. W. Koopman, and T. D. Wilkerson, Phys. Rev. A 3, 16 (1971); R. D. Bengtson, M. H. Miller, D. W. Koopman, and T. D. Wilkerson, Phys. Fluids 13, 372 (1970); M. H. Miller and R. D. Bengtson, Phys. Rev. A 1, 983 (1970).
[CrossRef]

R. A. Bell, R. D. Bengtson, D. R. Branch, D. M. Gottlieb, and R. Roig, University of Maryland Report No. BN 572 (1968).

Bozman, W. R.

C. H. Corliss and W. R. Bozman, Experimental Transition Probabilities, Natl. Bur. Stand. Monograph No, 53 (U.S. Government Printing Office, Washington, D.C., 1962); C. H. Corliss and J. L. Tech, Oscillator Strengths and Transition Probabilities for 3288 Lines of Fe I, Natl. Bur. Stand. Monograph No. 108 (U.S. Government Printing Office, Washington, D. C, 1968); C. H. Corliss and B. Warner, Astrophys. J. Suppl. Ser. 8, 395 (1964).
[CrossRef]

Branch, D. R.

R. A. Bell, R. D. Bengtson, D. R. Branch, D. M. Gottlieb, and R. Roig, University of Maryland Report No. BN 572 (1968).

Bridges, J. M.

J. M. Bridges and W. L. Wiese, Astrophys. J. 161, 71 (1970).
[CrossRef]

Corliss, C. H.

C. H. Corliss and W. R. Bozman, Experimental Transition Probabilities, Natl. Bur. Stand. Monograph No, 53 (U.S. Government Printing Office, Washington, D.C., 1962); C. H. Corliss and J. L. Tech, Oscillator Strengths and Transition Probabilities for 3288 Lines of Fe I, Natl. Bur. Stand. Monograph No. 108 (U.S. Government Printing Office, Washington, D. C, 1968); C. H. Corliss and B. Warner, Astrophys. J. Suppl. Ser. 8, 395 (1964).
[CrossRef]

Garton, W. R. S.

W. R. S. Garton, W. H. Parkinson, and E. M. Reeves, Proc. Phys. Soc. Lond. 88, 771 (1966); M. H. Miller and R. D. Bengtson, J. Quant. Spectrosc. Radiat. Transfer 9, 1573 (1969).
[CrossRef]

Gottlieb, D. M.

R. A. Bell, R. D. Bengtson, D. R. Branch, D. M. Gottlieb, and R. Roig, University of Maryland Report No. BN 572 (1968).

Griem, H. R.

H. R. Griem, Phys. Rev. 131, 1170 (1963).
[CrossRef]

H. R. Griem, Phys. Rev. 128, 997 (1962).
[CrossRef]

Huber, M. C. E.

M. C. E. Huber and E. F. Tubbs, Astrophys. J. 177, 847 (1972).
[CrossRef]

Laun, D. D.

D. D. Laun, J. Res. Natl. Bur. Stand. (U.S.) A 68, 207 (1964).
[CrossRef]

D. D. Laun, J. Res. Natl. Bur. Stand. (U.S.) 21, 207 (1938); D. D. Laun and C. H. Corliss, J. Res. Natl. Bur. Stand.(U.S.) A 72, 609 (1968); C. H. Corliss, J. Res. Natl. Bur. Stand. (U.S.) A 73, 277 (1969).
[CrossRef]

Miller, M. H.

M. H. Miller, R. A. Roig, and R. D. Bengtson, Phys. Rev. A 4, 1709 (1971); R. D. Bengtson, M. H. Miller, D. W. Koopman, and T. D. Wilkerson, Phys. Rev. A 3, 16 (1971); R. D. Bengtson, M. H. Miller, D. W. Koopman, and T. D. Wilkerson, Phys. Fluids 13, 372 (1970); M. H. Miller and R. D. Bengtson, Phys. Rev. A 1, 983 (1970).
[CrossRef]

S. M. Wood and M. H. Miller, Rev. Sci. Instrum. 41, 1196 (1970).
[CrossRef]

M. H. Miller, in Proceedings of Second Symposium on Research on Uranium Plasmas and their Technological Applications, Atlanta, 1971 (American Institute of Aeronautics and Astronautics, New York, 1972).

Parkinson, W. H.

W. R. S. Garton, W. H. Parkinson, and E. M. Reeves, Proc. Phys. Soc. Lond. 88, 771 (1966); M. H. Miller and R. D. Bengtson, J. Quant. Spectrosc. Radiat. Transfer 9, 1573 (1969).
[CrossRef]

W. H. Parkinson, Harvard College Observatory (private communication).

Reeves, E. M.

W. R. S. Garton, W. H. Parkinson, and E. M. Reeves, Proc. Phys. Soc. Lond. 88, 771 (1966); M. H. Miller and R. D. Bengtson, J. Quant. Spectrosc. Radiat. Transfer 9, 1573 (1969).
[CrossRef]

Roig, R.

R. A. Bell, R. D. Bengtson, D. R. Branch, D. M. Gottlieb, and R. Roig, University of Maryland Report No. BN 572 (1968).

Roig, R. A.

M. H. Miller, R. A. Roig, and R. D. Bengtson, Phys. Rev. A 4, 1709 (1971); R. D. Bengtson, M. H. Miller, D. W. Koopman, and T. D. Wilkerson, Phys. Rev. A 3, 16 (1971); R. D. Bengtson, M. H. Miller, D. W. Koopman, and T. D. Wilkerson, Phys. Fluids 13, 372 (1970); M. H. Miller and R. D. Bengtson, Phys. Rev. A 1, 983 (1970).
[CrossRef]

Takens, R. J.

R. J. Takens, Astron. Astrophys. 5, 244 (1970).

Tourin, R. H.

R. H. Tourin, Spectroscopic Gas Temperature Measurement (Elsevier, Amsterdam, 1966).

Tubbs, E. F.

M. C. E. Huber and E. F. Tubbs, Astrophys. J. 177, 847 (1972).
[CrossRef]

Upson, II, W. L.

R. A. Bell and W. L. Upson, II, Astrophys. Lett. 9, 109 (1971).

Wiese, W. L.

J. M. Bridges and W. L. Wiese, Astrophys. J. 161, 71 (1970).
[CrossRef]

Wood, S. M.

S. M. Wood and M. H. Miller, Rev. Sci. Instrum. 41, 1196 (1970).
[CrossRef]

Other (17)

M. H. Miller, in Proceedings of Second Symposium on Research on Uranium Plasmas and their Technological Applications, Atlanta, 1971 (American Institute of Aeronautics and Astronautics, New York, 1972).

R. H. Tourin, Spectroscopic Gas Temperature Measurement (Elsevier, Amsterdam, 1966).

Origin and Distributions of the Elements, edited by L. H. Ahrens (Pergamon, London, 1968); C. W. Allen, Astrophysical Quantities (Athlone, London, 1955); A. G. W. Cameron, Astrophys. Lett. 1, 35 (1967).

C. H. Corliss and W. R. Bozman, Experimental Transition Probabilities, Natl. Bur. Stand. Monograph No, 53 (U.S. Government Printing Office, Washington, D.C., 1962); C. H. Corliss and J. L. Tech, Oscillator Strengths and Transition Probabilities for 3288 Lines of Fe I, Natl. Bur. Stand. Monograph No. 108 (U.S. Government Printing Office, Washington, D. C, 1968); C. H. Corliss and B. Warner, Astrophys. J. Suppl. Ser. 8, 395 (1964).
[CrossRef]

J. M. Bridges and W. L. Wiese, Astrophys. J. 161, 71 (1970).
[CrossRef]

R. J. Takens, Astron. Astrophys. 5, 244 (1970).

R. A. Bell and W. L. Upson, II, Astrophys. Lett. 9, 109 (1971).

M. C. E. Huber and E. F. Tubbs, Astrophys. J. 177, 847 (1972).
[CrossRef]

H. R. Griem, Phys. Rev. 131, 1170 (1963).
[CrossRef]

H. R. Griem, Phys. Rev. 128, 997 (1962).
[CrossRef]

M. H. Miller, R. A. Roig, and R. D. Bengtson, Phys. Rev. A 4, 1709 (1971); R. D. Bengtson, M. H. Miller, D. W. Koopman, and T. D. Wilkerson, Phys. Rev. A 3, 16 (1971); R. D. Bengtson, M. H. Miller, D. W. Koopman, and T. D. Wilkerson, Phys. Fluids 13, 372 (1970); M. H. Miller and R. D. Bengtson, Phys. Rev. A 1, 983 (1970).
[CrossRef]

W. H. Parkinson, Harvard College Observatory (private communication).

W. R. S. Garton, W. H. Parkinson, and E. M. Reeves, Proc. Phys. Soc. Lond. 88, 771 (1966); M. H. Miller and R. D. Bengtson, J. Quant. Spectrosc. Radiat. Transfer 9, 1573 (1969).
[CrossRef]

S. M. Wood and M. H. Miller, Rev. Sci. Instrum. 41, 1196 (1970).
[CrossRef]

R. A. Bell, R. D. Bengtson, D. R. Branch, D. M. Gottlieb, and R. Roig, University of Maryland Report No. BN 572 (1968).

D. D. Laun, J. Res. Natl. Bur. Stand. (U.S.) 21, 207 (1938); D. D. Laun and C. H. Corliss, J. Res. Natl. Bur. Stand.(U.S.) A 72, 609 (1968); C. H. Corliss, J. Res. Natl. Bur. Stand. (U.S.) A 73, 277 (1969).
[CrossRef]

D. D. Laun, J. Res. Natl. Bur. Stand. (U.S.) A 68, 207 (1964).
[CrossRef]

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (5)

Fig. 1
Fig. 1

Excited-state number densities for prominent W i and W ii lines as functions of temperature. Plasma pressure is 9.0 × 106 d cm−2 and test gas composition is 0.38% (molal) of WF6 in neon.

Fig. 2
Fig. 2

Experimental pressure and temperature ranges. Molal concentrations of WF6 in neon are 0.16, 0.26, and 0.38%, denoted by squares, circles, and triangles, respectively.

Fig. 3
Fig. 3

Ratios of Corliss and Bozman data to present results for relative W i transition probabilities, plotted as functions of upper-state excitation potential. Both data sets are normalized to the A value of the W i 4570.6-Å line.

Fig. 4
Fig. 4

Ratios of Corliss and Bozman data to present results, for relative W i transition probabilities, displayed as functions of wavelength.

Fig. 5
Fig. 5

Ratios of Corliss and Bozman data to present results for relative W i transition probabilities vs line strengths determined with the shock tube.

Tables (3)

Tables Icon

Table I Relative transition probabilities of neutral tungsten (normalized to W i 4570.64 Å).

Tables Icon

Table II Relative transition probabilities for singly ionized tungsten (A values are relative to the W ii 4604.58-Å line).

Tables Icon

Table III Unclassified lines ascribed to tungsten.