X-RAYS FROM RADIATIVE ELECTRON-CAPTURE OF FREE COOLING ELECTRONS FOR PRECISE LAMB-SHIFT MEASUREMENTS AT HIGH-Z-AU78+

被引：57

作者：

BEYER, HF

LIESEN, D

BOSCH, F

FINLAYSON, KD

JUNG, M

KLEPPER, O

MOSHAMMER, R

BECKERT, K

EICKHOFF, H

FRANZKE, B

NOLDEN, F

SPADTKE, P

STECK, M

机构：

[1] UNIV LEIPZIG,D-04103 LEIPZIG,GERMANY

[2] NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899

来源：

PHYSICS LETTERS A | 1994年 / 184卷 / 06期

关键词：

D O I：

10.1016/0375-9601(94)90519-3

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Spontaneous capture of free cooling electrons by bare high-Z ions leads to the emission of X rays which have been observed for the first time. The distinctive features of this X-ray source for precision spectroscopy of high-Z few-electron systems are demonstrated. They enabled a determination of the 1s Lamb shift of hydrogen-like Au78+ (212 +/- 15 eV) to an accuracy of 7%. This is more precise than any other measurement previously reported for a very heavy ion.

引用

页码：435 / 439

页数：5

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