Abstract

Curves of growth are calculated for autoionizing transitions having the Beutler-Fano form of absorption cross section. Both graphs and tabulated values of the curves are presented. The curve-of-growth analysis is applied to the 3<i>s</i>–4<i>p</i> transition in argon at 466 Å. The line parameters Γ, <i>q</i>, and ρ<sup>2</sup> obtained by fitting the theoretical and experimental equivalent widths are in good agreement with other high-resolution values. The curve-of-growth technique thus appears to be an attractive method for determining the parameters of autoionizing features. The application of this technique to make path-length or particle-density measurements in, for example, a King furnace or a plasma is also discussed.

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  1. U. Fano, Phys. Rev. 124, 1866 (1961).
  2. U. Fano and J. W. Cooper, Phys. Rev. 137, 1364 (1965).
  3. H. Beutler, Z. Physik 93, 177 (1935).
  4. R. P. Madden and K. Codling, Astrophys. J. 141, 364 (1965).
  5. M . E. Levy and R. E. Huffman, J. Quant. Spectrosc. Radiative Transfer 9, 1349 (1969).
  6. R. P. Madden, D. L. Ederer, and K. Codling, Phys. Rev. 177, 136 (1969).
  7. See, for example, S. S. Penner, Quantitative Molecular Spectroscopy and Gas Emissivities (Addison—Wesley, Reading, Mass., 1959), Ch. 4.
  8. S. D. Conte, Elemnentary Numerical Analysis (McGraw-Hill, New York, 1965), p. 138. We are grateful to V. Tice of the USC Computing Center for making available to us his integration program.
  9. G. Balloffet, J. Romand, and B. Vodar, Compt. Rend. 252, 4139 (1961); H. Damany, J.-Y. Roncin, and N. Damany-Astoin, Appl. Opt. 5, 297 (1966).
  10. R. Nossal and G. H. Weiss, J. Quant. Spectrosc. Radiative Transfer 8, 763 (1968).

Balloffet, G.

G. Balloffet, J. Romand, and B. Vodar, Compt. Rend. 252, 4139 (1961); H. Damany, J.-Y. Roncin, and N. Damany-Astoin, Appl. Opt. 5, 297 (1966).

Beutler, H.

H. Beutler, Z. Physik 93, 177 (1935).

Codling, K.

R. P. Madden and K. Codling, Astrophys. J. 141, 364 (1965).

R. P. Madden, D. L. Ederer, and K. Codling, Phys. Rev. 177, 136 (1969).

Conte, S. D.

S. D. Conte, Elemnentary Numerical Analysis (McGraw-Hill, New York, 1965), p. 138. We are grateful to V. Tice of the USC Computing Center for making available to us his integration program.

Cooper, J. W.

U. Fano and J. W. Cooper, Phys. Rev. 137, 1364 (1965).

Ederer, D. L.

R. P. Madden, D. L. Ederer, and K. Codling, Phys. Rev. 177, 136 (1969).

Fano, U.

U. Fano and J. W. Cooper, Phys. Rev. 137, 1364 (1965).

U. Fano, Phys. Rev. 124, 1866 (1961).

Huffman, R. E.

M . E. Levy and R. E. Huffman, J. Quant. Spectrosc. Radiative Transfer 9, 1349 (1969).

Levy, M . E.

M . E. Levy and R. E. Huffman, J. Quant. Spectrosc. Radiative Transfer 9, 1349 (1969).

Madden, R. P.

R. P. Madden and K. Codling, Astrophys. J. 141, 364 (1965).

R. P. Madden, D. L. Ederer, and K. Codling, Phys. Rev. 177, 136 (1969).

Nossal, R.

R. Nossal and G. H. Weiss, J. Quant. Spectrosc. Radiative Transfer 8, 763 (1968).

Penner, S. S.

See, for example, S. S. Penner, Quantitative Molecular Spectroscopy and Gas Emissivities (Addison—Wesley, Reading, Mass., 1959), Ch. 4.

Romand, J.

G. Balloffet, J. Romand, and B. Vodar, Compt. Rend. 252, 4139 (1961); H. Damany, J.-Y. Roncin, and N. Damany-Astoin, Appl. Opt. 5, 297 (1966).

Vodar, B.

G. Balloffet, J. Romand, and B. Vodar, Compt. Rend. 252, 4139 (1961); H. Damany, J.-Y. Roncin, and N. Damany-Astoin, Appl. Opt. 5, 297 (1966).

Weiss, G. H.

R. Nossal and G. H. Weiss, J. Quant. Spectrosc. Radiative Transfer 8, 763 (1968).

Other

U. Fano, Phys. Rev. 124, 1866 (1961).

U. Fano and J. W. Cooper, Phys. Rev. 137, 1364 (1965).

H. Beutler, Z. Physik 93, 177 (1935).

R. P. Madden and K. Codling, Astrophys. J. 141, 364 (1965).

M . E. Levy and R. E. Huffman, J. Quant. Spectrosc. Radiative Transfer 9, 1349 (1969).

R. P. Madden, D. L. Ederer, and K. Codling, Phys. Rev. 177, 136 (1969).

See, for example, S. S. Penner, Quantitative Molecular Spectroscopy and Gas Emissivities (Addison—Wesley, Reading, Mass., 1959), Ch. 4.

S. D. Conte, Elemnentary Numerical Analysis (McGraw-Hill, New York, 1965), p. 138. We are grateful to V. Tice of the USC Computing Center for making available to us his integration program.

G. Balloffet, J. Romand, and B. Vodar, Compt. Rend. 252, 4139 (1961); H. Damany, J.-Y. Roncin, and N. Damany-Astoin, Appl. Opt. 5, 297 (1966).

R. Nossal and G. H. Weiss, J. Quant. Spectrosc. Radiative Transfer 8, 763 (1968).

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