Decay of Excited Species in a Pulsed Discharge in Krypton

R. Turner

doi:10.1103/PhysRev.158.121

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Decay of Excited Species in a Pulsed Discharge in Krypton

R. Turner

Division of Applied Physics, National Research Council, Ottawa, Canada

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Phys. Rev. 158, 121 – Published 5 June, 1967

DOI: https://doi.org/10.1103/PhysRev.158.121

Abstract

The emission in the afterglow of a pulsed discharge in krypton has been investigated. Measurements of the decay times of the resonance radiation at $λ 1236$ Å and a diffuse molecular radiation at $λ 1250$ Å and longer wavelengths have been made as functions of pressure at 295 and 196°K. The measurements have been interpreted on the assumption of a simple two-time-constant model, leading to values of the collision frequencies for collision-induced transitions between the metastable level ( $1 s_{5}$ ) and the resonance level ( $1 s_{4}$ ) of 13× $10^{- 14}$ ${cm}^{3}$ /sec and 22× $10^{- 14}$ ${cm}^{3}$ /sec at 295 and 196°K, respectively, for de-exciting collisions ( $1 s_{4} - 1 s_{5}$ ), and 7.6× $10^{- 16}$ ${cm}^{3}$ /sec and 1.3× $10^{- 16}$ ${cm}^{3}$ /sec, respectively, for exciting collisions ( $1 s_{5} - 1 s_{4}$ ). The coefficients for the conversion of metastable atoms to molecules in two- and three-body collisions with normal atoms has also been determined. The two-body collision frequency for molecule formation was found to be 15× $10^{- 16}$ ${cm}^{3}$ /sec and 26× $10^{- 16}$ ${cm}^{3}$ /sec at 295 and 196°K, respectively, and the three-body collision frequency was found to be 4× $10^{- 32}$ ${cm}^{6}$ /sec and 6.9× $10^{- 32}$ ${cm}^{6}$ /sec at 295 and 196°K. The results are compared with existing measurements in other rare gases. The two-body part of the molecule formation is discussed in terms of an interatomic potential which has a hump similar to that proposed in the case of helium.

References (24)

D. S. Smith and R. Turner, Can. J. Phys. 41, 1949 (1963)
R. Turner, Phys. Rev. 140, A426 (1965)
J. R. Dixon and F. A. Grant, Phys. Rev. 107, 118 (1957)
Y. Tanaka, Opt. Soc. Am. 45, 710 (1955)
Y. Tanaka, Opt. Soc. Am. 48, 304 (1958)
R. E. Huffman, Y. Tanaka, and J. C. Larrabee, Opt. Soc. Am. 52, 851 (1962)
P. G. Wilkinson, J. Quant. Spectry. Radiative Transfer 5, 503 (1965)
R. E. Huffman, J. C. Larrabee, and Y. Tanaka, Opt. Soc. Am. 55, 101 (1965)
L. Colli and U. Facchini, Phys. Rev. 88, 987 (1952) ibid.96, 1 (1954)
A. V. Phelps, Phys. Rev. 99, 1307 (1955)
T. Holstein, Phys. Rev. 83, 1159 (1951)
T. Holstein, Phys. Rev. 72, 1212 (1947)
H. G. Kuhn and J. M. Vaughan, Proc. Roy. Soc. (London) 277A, 297 (1964)
A. V. Phelps, Phys. Rev. 114, 1011 (1959)
H. W. S. Massey and E. H. S. Burhop, Electronic and Ionic Impact Phenomena (Oxford University Press, London, 1952), Chap. VII, Sec. 10
L. I. Schiff, Quantum Mechanics (McGraw-Hill Book Company, Inc., New York, 1955), Chap. VIII, Sec. 31
J. Callaway and E. Bauer, Phys. Rev. 140, A1072 (1965)
Y. Tanaka and K. Yoshino, J. Chem. Phys. 39, 3081 (1963)
R. A. Buckingham and A. Dalgarno, Proc. Roy. Soc. (London) 213A, 327, 506 (1952)
E. H. S. Burhop and R. Marriott, Proc. Phys. Soc. (London) 69A, 271 (1956)
D. C. Allison, J. C. Browne, and A. Dalgarno, Proc. Phys. Soc. (London) 89, 41 (1966)
D. R. Scott, E. M. Greenawalt, J. C. Browne, and F. A. Matsen, J. Chem. Phys. 44, 2981 (1966)
A. V. Phelps and J. P. Molnar, Phys. Rev. 89, 1203 (1953)
R. Bouciqué (private communication)

[c1] D. S. Smith and R. Turner, Can. J. Phys. 41, 1949 (1963)

[c2] R. Turner, Phys. Rev. 140, A426 (1965)

[c3] J. R. Dixon and F. A. Grant, Phys. Rev. 107, 118 (1957)

[c4] Y. Tanaka, Opt. Soc. Am. 45, 710 (1955)

[c5] Y. Tanaka, Opt. Soc. Am. 48, 304 (1958)

[c6] R. E. Huffman, Y. Tanaka, and J. C. Larrabee, Opt. Soc. Am. 52, 851 (1962)

[c7] P. G. Wilkinson, J. Quant. Spectry. Radiative Transfer 5, 503 (1965)

[c8] R. E. Huffman, J. C. Larrabee, and Y. Tanaka, Opt. Soc. Am. 55, 101 (1965)

[c9] L. Colli and U. Facchini, Phys. Rev. 88, 987 (1952) ibid.96, 1 (1954)

[c10] A. V. Phelps, Phys. Rev. 99, 1307 (1955)

[c11] T. Holstein, Phys. Rev. 83, 1159 (1951)

[c12] T. Holstein, Phys. Rev. 72, 1212 (1947)

[c13] H. G. Kuhn and J. M. Vaughan, Proc. Roy. Soc. (London) 277A, 297 (1964)

[c14] A. V. Phelps, Phys. Rev. 114, 1011 (1959)

[c15] H. W. S. Massey and E. H. S. Burhop, Electronic and Ionic Impact Phenomena (Oxford University Press, London, 1952), Chap. VII, Sec. 10

[c16] L. I. Schiff, Quantum Mechanics (McGraw-Hill Book Company, Inc., New York, 1955), Chap. VIII, Sec. 31

[c17] J. Callaway and E. Bauer, Phys. Rev. 140, A1072 (1965)

[c18] Y. Tanaka and K. Yoshino, J. Chem. Phys. 39, 3081 (1963)

[c19] R. A. Buckingham and A. Dalgarno, Proc. Roy. Soc. (London) 213A, 327, 506 (1952)

[c20] E. H. S. Burhop and R. Marriott, Proc. Phys. Soc. (London) 69A, 271 (1956)

[c21] D. C. Allison, J. C. Browne, and A. Dalgarno, Proc. Phys. Soc. (London) 89, 41 (1966)

[c22] D. R. Scott, E. M. Greenawalt, J. C. Browne, and F. A. Matsen, J. Chem. Phys. 44, 2981 (1966)

[c23] A. V. Phelps and J. P. Molnar, Phys. Rev. 89, 1203 (1953)

[c24] R. Bouciqué (private communication)

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Decay of Excited Species in a Pulsed Discharge in Krypton

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