HIGH-RESOLUTION STUDY OF DIELECTRONIC CAPTURE BY CHANNELED TI-IONS

被引：18

作者：

BELKACEM, A

KANTER, EP

REHM, KE

BERNSTEIN, EM

CLARK, MW

FERGUSON, SM

TANIS, JA

BERKNER, KH

SCHNEIDER, D

机构：

[1] WESTERN MICHIGAN UNIV,KALAMAZOO,MI 49008

[2] LAWRENCE BERKELEY LAB,BERKELEY,CA 94720

[3] LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 04期

关键词：

17;

D O I：

10.1103/PhysRevLett.64.380

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Charge-changing processes have been investigated for 267320-MeV Ti19+ and Ti20+ ions channeled in a thin gold crystal. High-resolution measurements of the energy losses suffered by the charge-changed ions show that electron capture by the well-channeled particles is significantly enhanced when the projectile velocity corresponds to ejected KLL Auger-electron energies from doubly excited states in the rest frame of the ion. The measurements of dielectronic capture exhibit exceedingly narrow resonance widths and reveal a shift of the resonances toward higher energies. © 1990 The American Physical Society.

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页码：380 / 383

页数：4

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