A capillary concentrator for an X-ray microprobe

K. F. Voss, K. H. Kim, E. A. Stern, F. C. Brown, S. M. Heald

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


Capillary concentrators are examined analytically and by computer simulations for applications in third-generation synchrotron-radiation beamlines. A comparison is made between them and focusing mirrors for producing a small spot of X rays. Both devices are achromatic and useful for experiments that require an X-ray microprobe which delivers X rays over a broad band of energies. It is shown that the capillary concentrator produces an order of magnitude more intensity than the focusing mirror for spots below micrometer dimensions. The simulations also show that the exact profile of the capillary is not important except for the region near the outlet.

Original languageEnglish
Pages (from-to)390-396
Number of pages7
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number1-3
StatePublished - 11 Aug 1994
Externally publishedYes

Bibliographical note

Funding Information:
We are pleased to acknowledge many informative conversations with Drs. Dan Thiel and Don Bilder-back . Funding support from the University of Washington and from the DOE is greatly appreciated.


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