Observation of "Diffusion Modes" in Measurement of the Diffusion Coefficient of Cesium in Noble Gases

• Authors: P. Rudecki
• Languages of publication: EN

Abstracts

EN

A set of experiments investigating diffusion of alkali atoms in the noble gases is reported. A cesium gradient in the cell was induced by electrodeless pulse discharge. In the transient signal of absorption, corresponding to the ^2S_{1/2}-n^2P_J transitions, five diffusion modes were observed. The diffusion coefficient D of cesium in helium and argon has been measured in a spherical cell filled with a buffer gas of 2.5 to 30 hPa and for temperatures in the range from 275 K to 400 K.

Keywords

EN

82.56.Lz; 34.90.+q

Discipline

• 82.56.Lz: Diffusion
• 34.90.+q: Other topics in atomic and molecular collision processes and interactions (restricted to new topics in section 34)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2001
• Volume: 100
• Issue: 6
• Pages: 915-923

Dates

published

2001-12

received

2001-08-03

Contributors

author

P. Rudecki

• Institute of Physics, N. Copernicus University, Grudziądzka 5-7, 87-100 Toruń, Poland

References

• 1. A.V. Phelps, J.P. Molnar, Phys. Rev., 87, 1202, 1952
• 2. H.J. Cornelissen, J. Phys. B, At. Mol. Opt. Phys., 18, 3445, 1985
• 3. F. Bylicki, Bull. Acad. Pol. Sci. Ser. Sci. Math. Astronom. Phys., 26, 945, 1978
• 4. F.A. Franz, C.E. Sooriamoorthi, Phys. Rev. A, 10, 126, 1974
• 5. J. Tornos, J.C. Amare, Appl. Spectrosc., 40, 596, 1986
• 6. A.P. Hickman, D.T. Mugglin, A.D. Streater, Opt. Commun., 102, 281, 1993
• 7. F. Yahyaei-Moayyed, A.P. Hickman, A.D. Streater, J. Phys. B, At. Mol. Opt. Phys., 29, 435, 1996
• 8. S. Legowski, P. Rudecki, Bull. Acad. Pol. Sci. Ser. Sci. Math. Astronom. Phys., 18, 43, 1970
• 9. E. Bernabeu, J. Tornos, J. Opt. Soc. Am. B, 1, 586, 1984
• 10. J. Hirschfelder, C. Curtis, R. Bird, Molecular Theory of Gases and Liquids, Wiley, New York 1964
• 11. S. Chapman, T.G. Cowling, The Matematical Theory of Non-Uniform Gases, Cambridge Press, Cambridge 1970
• 12. E. Czuchaj, J. Sienkiewicz, Z. Naturforsch. A, 34, 694, 1979
• 13. J. Pascale, J. Veplanque, J. Chem. Phys., 60, 2278, 1974
• 14. U. Buck, H. Pauly, Z. Phys., 208, 390, 1968

Identifiers

DOI

10.12693/APhysPolA.100.915