A CAPILLARY CONCENTRATOR FOR AN X-RAY MICROPROBE

Authors
VOSS KF KIM KH STERN EA BROWN FC HEALD SM
Citation
Kf. Voss et al., A CAPILLARY CONCENTRATOR FOR AN X-RAY MICROPROBE, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 347(1-3), 1994, pp. 390-396
Citations number
9
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
347
Issue
1-3
Year of publication
1994
Pages
390 - 396
Database
ISI
SICI code
0168-9002(1994)347:1-3<390:ACCFAX>2.0.ZU;2-D
Abstract
Capillary concentrators are examined analytically and by computer simu lations for applications in third-generation synchrotron-radiation bea n-dines. A comparison is made between them and focusing mirrors for pr oducing a small spot of X rays. Both devices are achromatic and useful for experiments that require an X-ray microprobe which delivers X ray s over a broad band of energies. It is shown that the capillary concen trator produces an order of magnitude more intensity than the focusing mirror for spots below micrometer dimensions. The simulations also sh ow that the exact profile of the capillary is not important except for the region near the outlet.