ENERGY-DISPERSIVE MEASUREMENTS OF L-ALPHA-1 AND LL X-RAY LINEWIDTHS

被引：17

作者：

PAPP, T

CAMPBELL, JL

MAXWELL, JA

WANG, JX

TEESDALE, WJ

机构：

[1] Guelph-Waterloo Program for Graduate Work in Physics, University of Guelph, Guelph

来源：

PHYSICAL REVIEW A | 1992年 / 45卷 / 03期

关键词：

D O I：

10.1103/PhysRevA.45.1711

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Proton-induced L x-ray spectra of heavy elements have been recorded with a Si(Li) x-ray spectrometer of accurately determined resolution function. The intrinsic widths of the Ll and L-alpha(1) lines were obtained by a nonlinear-least squares fitting procedure. L-alpha(1) widths agree with relativistic independent-particle-model (IPM) calculations, but Ll widths fall some 10-30 % below predictions. This indicates a strong influence of many-body effects on the decay of the 3s hole state; a similar influence is already well established for the 2s state. Relative intensities of the weak, electric-dipole-forbidden lines Lt and Ls are in good accord with IPM calculations.

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页码：1711 / 1716

页数：6

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