[1] [1] D. M. McDermott et al.; Phys. Rev. Lett., 1978, 41, 1368.

[2] [2] D. S. Birkett; IEEE J. Quant. Electr., 1981, QE-17, 1348.

[3] [3] V. L. Granastein et al.; Appl. Phys. Lett., 1977, 30, 384.

[4] [4] T. C. Marshall et al., Appl. Phys. Lett., 1977, 31, 320.

[5] [5] T. C. Marshall et al.; Advances in Electronics and Electron Physics, L. Marton, C. Marton, ed., 1980, 53.

[6] [6] R. H. Jackson et al., IEEE. Quant. Electr., 1983, QE-19, No. 3, 346.

[7] [7] M. L. Sloan; Phys. Fluids, 1982, 25, No. 12, 2337.

[8] [8] B. B. Miller; “An Introduction to the Physics of Intense Charged Particle Beams", Plenum Press, N. Y.，1982, p. 26.

[11] [11] S. H. Gold et al.; Bull. Amer. Phys. Soc., 1981, 26， 847.