GUIDING AND CONCENTRATING HARD X-RAYS BY USING A FLEXIBLE HOLLOW-CORE TAPERED GLASS-FIBER

被引：21

作者：

THIEL, DJ

BILDERBACK, DH

LEWIS, A

STERN, EA

RICH, T

机构：

[1] CORNELL UNIV,CORNELL HIGH ENERGY SYNCHROTRON SOURCE,ITHACA,NY 14853

[2] FIBERGUIDE IND INC,STIRLING,NJ 07980

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

[4] UNIV WASHINGTON,DEPT PHYS,SEATTLE,WA 98195

来源：

APPLIED OPTICS | 1992年 / 31卷 / 07期

关键词：

TOTAL EXTERNAL REFLECTION; X-RAY WAVE-GUIDE; X-RAY FIBER; TAPERED FIBER; X-RAY CONCENTRATION; X-RAY COMPRESSION;

D O I：

10.1364/AO.31.000987

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A 1.6-m-long, flexible, hollow glass fiber with a gradually diminishing bore diameter has been used efficiently to compress the size of an x-ray beam as it reflects from the inside walls of the fiber by total external reflection. The transmission characteristics of the fiber are reported for monochromatic synchrotron radiation of 8.04, 13, and 20 keV, as well as for CuK-alpha radiation from a conventional x-ray tube. Intensity enhancements as large as 10 that correspond to a transmission efficiency of 54% were observed. The high efficiency of this prototype fiber supports the idea that this confinement technique should yield intensity gains of many orders of magnitude as the optimal fiber design is achieved.

引用

页码：987 / 992

页数：6

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