AN ULTRAHIGH-VACUUM GONIOMETER SYSTEM EQUIPPED WITH A SI(LI) ARRAY DETECTOR FOR SOFT-X-RAY STANDING-WAVE EXPERIMENTS

被引：9

作者：

MAEYAMA, S

KAWAMURA, T

OSHIMA, M

机构：

[1] NTT Interdisciplinary Research Laboratories, Musashino-shi

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1991年 / 62卷 / 12期

关键词：

D O I：

10.1063/1.1142192

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

An ultrahigh vacuum compatible goniometer system has been developed for use in angle-scan standing-wave experiments in a soft x-ray region. This system uses a horizontal two-axis (theta and two-theta) goniometer for the x-ray diffractometer. The theta axle used for sample rotations is inserted into the vacuum chamber through a differentially pumped rotary feedthrough and is driven by a stepping motor. To detect x-ray fluorescence excited by x-ray standing waves, a three-element linear-array Si(Li) detector is equipped for this system. SK-alpha-fluorescence angular yield from monolayer-order sulfur atoms on a GaAs(111) surface could be measured for the first time by the angle-scan standing-wave experiment. This result demonstrates that this goniometer system can be used for angle-scan standing-wave experiments in the soft x-ray region.

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页码：2976 / 2979

页数：4

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