PRODUCTION OF INTENSE MICROMETER-SIZED X-RAY-BEAMS WITH TAPERED GLASS MONOCAPILLARIES

被引：30

作者：

THIEL, DJ

BILDERBACK, DH

LEWIS, A

机构：

[1] CORNELL UNIV,SCH APPL & ENGN PHYS,ITHACA,NY 14853

[2] HEBREW UNIV JERUSALEM,DEPT APPL PHYS,JERUSALEM,ISRAEL

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1993年 / 64卷 / 10期

关键词：

D O I：

10.1063/1.1144375

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Methods were developed to characterize tapered capillaries as x-ray concentrators capable of forming spots of intense x-ray radiation with micrometer diameters. These tapered capillaries, with somewhat controlled tapers, were produced using a gravity-based capillary puller. A device was constructed to microscopically inspect these capillaries along two orthogonal axes in order to accurately measure the tapering and bending. Both monochromatic and white hard x rays were concentrated with a variety of tapered capillaries, and the subsequent gains in intensity (flux/area) ranging from 14 to 35 are reported. Using these unique x-ray concentrators, a simple high-powered x-ray fluorescence microscope was constructed and tested. We also found that hard x-ray beams could be successfully steered by bending the capillary tip with radii as small as 5 m. In addition, preliminary ray-tracing results obtained from a two-dimensional ray-tracing program are described.

引用

页码：2872 / 2878

页数：7

共 17 条

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