Abstract
A scheme for the calculation of energy spectra of ions backscatterred from random solids is proposed for the energy region where multiple collisions dominate. Calculations are performed for light ion bombardment of heavy targets, which is a case of special interest for the plasma-well interaction in fusion reactors. Examples of spectra obtained for protons incident on a Cu target are presented. A maximum in the spectra is found in accordance with measurements. The position of the maximum seems to vary slowly with the initial ion energy.
Similar content being viewed by others
References
R.Behrisch: Summer School 1976 of Tokomak Reactors for Breakeven, Erice (1976)
R.Behrisch: J. Physique 38:C3 (1977)
W.Eckstein, F.E.P.Matschke, H.Verbeek: J. Nucl. Mat.63, 199 (1976)
G.Sidenius, T.Lenskjær: Nucl. Instr. Meth.132, 673 (1976)
M.T.Robinson: Proc. 3rd Int. Conf. on Atomic Coll. in Solids, Kiev (1974)
O.S.Oen, M.T.Robinson: Nucl. Instr. Meth.132, 647 (1976)
O.S.Oen, M.T.Robinson: J. Nucl. Mat.63, 210 (1976)
J.E.Robinson, Rad. Effects23, 29 (1974)
J.E.Robinson: Appl. Phys. Lett.27, 425 (1975)
J.E.Robinson, S.Agamy: InAtomic Collisions in Solids, ed. by S.Datz, B.R.Appleton, and C.D.Moak (Plenum Press, New York 1975) Vol. 1, p. 215
J.E.Robinson, K.K.Kwok, D.A.Thompson: Nucl. Instr. Meth.132, 667 (1976)
G.M.McCracken, N.J.Freeman: J. Phys. B2, 661 (1969).
R.Behrisch, B.M.U.Scherzer: Thin Solid Films19, 247 (1973)
J.Vukanić, P.Sigmund: Appl. Phys.11, 265 (1976)
J. Vukanić, P. Sigmund: Proc. 8th Yugoslav Symp. on the Physics of Ionized Gases, Dubrovnik (1976)
J.Lindhard, M.Scharff, H.E.Schiøtt. Mat. Fys. Medd. Dan. Vid. Selsk.33, No. 14 (1963)
D.K.Brice: Rad. Effects6, 77 (1970)
D.K.Brice: Rad. Effects11, 227 (1971)
K.B. Winterbon, P.Sigmund, J.B. Sanders: Mat. Fys. Medd. Dan. Vid. Selsk.37, No. 14 (1970)
P.Sigmund: Can. J. Phys.46, 731 (1968)
J.Bøttiger, J.A.Davies, P.Sigmund, K.B.Winterbon: Rad. Effects11, 69 (1971)
U.Littmark: Thesis, University of Copenhagen, Denmark (1974)
J.Lindhard, V.Nielsen, M.Scharff: Mat. Fys. Medd. Dan. Vid. Selsk.36, No. 10 (1968)
J.Lindhard, M.Scharff: Phys. Rev.124, 128 (1961)
A. Gras-Marti: Thesis, University of Madrid, Spain (1977)
H.E. Schiøtt: Mat. Fys. Medd. Dan. Vid. Selsk.35, No. 9 (1966)
R.Weissmann, P.Sigmund: Rad. Effects19, 7 (1973)
U.Littmark: IPP-Bericht 9/21, Max-Planck-Institut für Plasmaphysik. Garching, FRG (1976)
U.Littmark, G.Maderlechner, R.Behrisch, B.M.U.Scherzer, M.T.Robinson: Nucl. Instr. Meth.132, 661 (1976)
H.Verbeek: J. Appl. Phys.46, 2981 (1975)
T.M.Buck, Y.S.Chen, G.H.Wheatleng, W.F.van derWeg: Surf. Sci.47, 244 (1975)
G.Maderlechner: Private communication
V.A.Kurnaev: Private communication
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Littmark, U., Gras-Marti, A. Energy spectra of light ions backscattered from random solids. Appl. Phys. 16, 247–253 (1978). https://doi.org/10.1007/BF00885120
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00885120