EXPERIMENTAL INVESTIGATION OF ANGULAR-DEPENDENCE OF PHOTON INDUCED L-SHELL X-RAY-EMISSION INTENSITY

被引：22

作者：

KAHLON, KS ^{[1
]}

SHATENDRA, K ^{[1
]}

ALLAWADHI, KL ^{[1
]}

SOOD, BS ^{[1
]}

机构：

[1] SOLID STATE PHYS LAB, DELHI 110007, INDIA

来源：

PRAMANA-JOURNAL OF PHYSICS | 1990年 / 35卷 / 01期

关键词：

D O I：

10.1007/BF02846646

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The angular dependence of emission intensity of L shell X-rays induced by 59.57 keV photons in Pb and U is investigated by measuring the normalized intensities of the resolved L X-ray peaks at different angles varying from 40° to 120°. It is observed that while L l and Lα X-ray peaks (originating from J = 3/2 state) show some anisotropic angular distribution, the emission of Lβ and Lγ X-ray peaks is isotropic. The present results contradict the calculations of Co-oper and Zare (1969) that after photoionization of inner shell, the vacancy state has equal population of magnetic substates and the subsequent X-ray emission is isotropic but confirm the predictions of Flugge et al (1972) that the atomic inner shell vacancies produced after photoionization are aligned and the x-ray emission from the filling of vacancies in state with J ≥ 3/2 is anisotropic. © 1990 the Indian Academy of Sciences.

引用

页码：105 / 114

页数：10

共 19 条

[1] THEORETICAL-STUDY OF INNER-SHELL ALIGNMENT OF ATOMS IN ELECTRON-IMPACT IONIZATION - ANGULAR-DISTRIBUTION AND POLARIZATION OF X-RAYS AND AUGER ELECTRONS [J].