Pressure dependence of the electron density in electron‐beam‐excited rare‐gas plasmas
1.E. Zamir, C. W. Werner, W. P. Lapatovich, and E. V. George, Appl. Phys. Lett. 27, 56 (1975).
2.C. W. Werner, Ph.D. thesis (Massachusetts Institute of Technology, Cambridge, Mass., 1975) (unpublished).
3.See, for example, G. Bekefi, Radiation Processes in Plasmas (Wiley, New York, 1966), p. 79.
4.L. S. Frost and A. V. Phelps, Phys. Rev. A 136, 1538 (1964).
5.C. J. Elliott and A. E. Greene, Los Alamos Scientific Laboratory Scientific Report LA‐UR‐76‐152, 1975 (unpublished).
6.M. J. Berger and S. M. Selzer, Tables of Energy Losses and Ranges of Electrons and Positrons, NASA Publication No. N65‐12506 (NASA, Washington, D.C., 1964).
7.U. Fano, Am. Rev. Nucl. Sci. 13, 1 (1963).
8.C. W. Werner, E. V. George, P. W. Hoff, and C. K. Rhodes, UCRL 77412, 1976 (unpublished).
9.See, for example, J. N. Bardsley and M. A. Biondi, in Advances in Atomic and Molecular Physics, Vol. 6, edited by D. R. Bates (Academic, New York, 1970).
10.Recent calculations by D. R. Bates and S. P. Khare, Proc. Phys. Soc. 85, 231 (1965)
10.[see also D. R. Bates, J. Phys. B 8, 2722 (1975)], indicate that the two‐body rate coefficient in helium, for our plasma conditions (pressures in excess of atmospheric and ) is less than If one considers molecular three‐body recombination processes where vibrational and rotational degress of freedom are present, this rate coefficient is somewhat larger. For example, in the two‐body rate coefficient is less than at our plasma conditions.
10.See H. S. W. Massey and H. Z. Gilbody, Electronic and Ionic Impact Phenomena (Oxford U.P., London, 1974).
11.P. L. Patterson, J. Chem. Phys. 48, 3625 (1968).
12.See, for example, M. A. Biondi, Principles of Laser Plasmas, edited by S. C. Brown (Wiley, New York, to be published).
13.J. F. Delpech and J. C. Gauthier, Phys. Rev. A 6, 1932 (1972).
14.Wei‐cheng F. Liu and D. C. Conway, J. Chem. Phys. 62, 3070 (1975).
15.H. Helm, Phys. Rev. A (to be published).
16.This calculation was performed by applying the principle of detailed balance to Eq. (3) and assuming a hard‐sphere collision with threshold energy of 0.27 eV and an interaction radius of 4 Å.
17.C. W. Werner, E. V. George, P. W. Hoff, and C. K. Rhodes, Appl. Phys. Lett. 25, 235 (1974).
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