Spatial and energy distributions of the fragments resulting from the dissociation of swift molecular ions in solids

被引:1
作者
Heredia-Avalos, S
Garcia-Molina, R
Abril, I
机构
[1] Univ Murcia, Dept Fis, E-30080 Murcia, Spain
[2] Univ Alicante, Dept Fis Aplicada, E-03080 Alicante, Spain
关键词
stopping power; energy loss; molecular ions; doping and ion implantation;
D O I
10.1016/S0168-583X(01)01221-6
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
We have simulated the spatial evolution and energy loss of the fragments that result when swift molecular ions dissociate inside solid targets. In our calculations we have considered that these fragments undergo the following interactions: Coulomb repulsion (among like charged particles), stopping and wake forces (due to electronic excitations induced in the target), and nuclear scattering (with the target nuclei). We study the case of silicon targets irradiated with boron molecular or atomic ions; our results show that the main differences in the energy and spatial distributions of molecular fragments or atomic ions appear at shallow regions, and these tend to disappear at deeper depths. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:131 / 135
页数:5
相关论文
共 17 条
[1]   Electronic energy loss of swift protons in the oxides Al2O3, SiO2 and ZrO2 [J].
Abril, I ;
Garcia-Molina, R ;
Arista, NR ;
Sanz-Navarro, CF .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2002, 190 :89-94
[2]   Dielectric description of wakes and stopping powers in solids [J].
Abril, I ;
Garcia-Molina, R ;
Denton, CD ;
Perez-Perez, FJ ;
Arista, NR .
PHYSICAL REVIEW A, 1998, 58 (01) :357-366
[3]   ENERGY-LOSS OF SWIFT PROTON CLUSTERS IN SOLIDS [J].
BRANDT, W ;
RATKOWSKI, A ;
RITCHIE, RH .
PHYSICAL REVIEW LETTERS, 1974, 33 (22) :1325-1328
[4]   EFFECTIVE STOPPING-POWER CHARGES OF SWIFT IONS IN CONDENSED MATTER [J].
BRANDT, W ;
KITAGAWA, M .
PHYSICAL REVIEW B, 1982, 25 (09) :5631-5637
[5]   Electronic stopping power of B-10 in Si in random and [100] channeling directions [J].
dosSantos, JHR ;
Behar, M ;
Grande, PL ;
Boudinov, H ;
Stoll, R ;
Klatt, C ;
Kalbitzer, S .
PHYSICAL REVIEW B, 1997, 55 (20) :13651-13657
[6]   Energy-loss and exit-angle distributions of fragmented H2+ ions after traversing carbon foils -: art. no. 012901 [J].
Garcia-Molina, R ;
Denton, CD ;
Abril, I ;
Arista, NR .
PHYSICAL REVIEW A, 2000, 62 (01) :5
[7]   Exit angle, energy loss and internuclear distance distributions of H2+ ions dissociated when traversing different materials [J].
Garcia-Molina, R ;
Abril, I ;
Denton, CD ;
Arista, NR .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2000, 164 :310-317
[8]   NUCLEAR AND ELECTRONIC STOPPING POWERS OF LOW-ENERGY IONS WITH Z LESS-THAN-OR-EQUAL-TO 10 IN SILICON [J].
GRAHMANN, H ;
KALBITZER, S .
NUCLEAR INSTRUMENTS & METHODS, 1976, 132 (JAN-F) :119-123
[9]   Energy loss of swift oxygen molecular ions traversing amorphous carbon foils [J].
Heredia-Avalos, S ;
Garcia-Molina, R .
PHYSICS LETTERS A, 2000, 275 (1-2) :73-79
[10]   Z1-DEPENDENCE OF ELECTRONIC-ENERGY STRAGGLING OF LIGHT-IONS [J].
HOFFMANN, I ;
JAGER, E ;
MULLERJAHREIS, U .
RADIATION EFFECTS AND DEFECTS IN SOLIDS, 1976, 31 (01) :57-57