AN AUTOMATED NEUTRON REFLECTOMETER (POSY-II) AT THE INTENSE PULSED NEUTRON SOURCE

被引：26

作者：

KARIM, A ^{[1
]}

ARENDT, BH ^{[1
]}

GOYETTE, R ^{[1
]}

HUANG, YY ^{[1
]}

KLEB, R ^{[1
]}

FELCHER, GP ^{[1
]}

机构：

[1] ARGONNE NATL LAB,ARGONNE,IL 60439

来源：

PHYSICA B | 1991年 / 173卷 / 1-2期

关键词：

D O I：

10.1016/0921-4526(91)90030-I

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A brief description is given of the time-of-flight neutron relfectometer POSY II at the Intense Pulsed Neutron Source (IPNS) at Argonne National Laboratory. Both data collection and refinement of the experimental data are nearly automatic. The neutron reflectivity is measured as a function of the neutron momentum perpendicular to the surface over a range from 0 to 0.1 angstrom-1. The instrument is capable of measuring reflectivities as low as 10(-6). The neutron reflectivity is used to determine the composition profile of the layers close to the surface of the sample, with a depth resolution of approximately 10 angstrom.

引用

页码：17 / 24

页数：8

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