Heavy ion induced multiple ionization in gold
Tóm tắt
TheL X-ray spectra of Au in collision with carbon and oxygen projectiles in the energy range of 0.25 to 0.75 MeV amu−1 have been measured. From the energy shifts and the yield-ratio shifts of theL
1,L
α,L
η andL
γ lines relative to those for the 3.5 MeV proton bombardment, the experimental values for the multiple ionisation probabilitiesp
M4,5 andp
N4 as a function of the projectile energy have been determined. The results show that the geometrical model of Sulik et al. provide a much better description of the heavy ion data than the first-order theory of McGuire and Richard.
Tài liệu tham khảo
Knudson, A.R., Nagel, D.J., Burkhalter, P.G., Dunning, K.L.: Phys. Rev. Lett.26, 1149 (1971)
Burch, D., Richard, P., Blake, R.L.: Phys. Rev. Lett.26, 1355 (1971)
Richard, P., Kauffman, R.L., McGuire, J.H.: Phys. Rev. A8, 1369 (1973)
Krause, M.O.: J. Phys. Chem. Ref. Data8, 307 (1979)
Berinde, A., Ciortea, C., Enulescu, A., Fluerasu, D., Hock, G., Piticu, I., Sarkadi, L., Sulik, B., Zoran, V.: J. Phys. B20, L481 (1987)
McGuire, J.H., Richard, P.: Phys. Rev. A8, 1374 (1973)
Crasemann, B.: Atomic inner shell process. Vol. 1, pp. 51. New York: Academic Press 1975
Sulik, B., Hock, G., Bere'nyi, D.: J. Phys. B17, 3239 (1984)
Hock, G., Sulik, B., Ve'gh, J., Ka'da'r, I., Ricz, S., Varga, D.: Nucl. Instrum. Methods A240, 475 (1985)
Sulik, B., Hock, G.: Proc. 2nd Workshop on High-Energy Ionatom collisions, Debrecen 1984, pp. 183
McGuire, J.H., Omidvar, K.: Phys. Rev. A10, 182 (1974)
Gowda, R., Powers, D.: Phys. Rev. A31, 134 (1985)
Salem, S.I., Panossian, S.L., Krause, R.: At. Data Nucl. Data Tables14, 91 (1974)