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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 4, Iss. 2 — Feb. 10, 2009

Elemental mapping and microimaging by x-ray capillary optics

D. Hampai, S. B. Dabagov, G. Cappuccio, A. Longoni, T. Frizzi, G. Cibin, V. Guglielmotti, and M. Sala  »View Author Affiliations


Optics Letters, Vol. 33, Issue 23, pp. 2743-2745 (2008)
http://dx.doi.org/10.1364/OL.33.002743


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Abstract

Recently, many experiments have highlighted the advantage of using polycapillary optics for x-ray fluorescence studies. We have developed a special confocal scheme for micro x-ray fluorescence measurements that enables us to obtain not only elemental mapping of the sample but also simultaneously its own x-ray imaging. We have designed the prototype of a compact x-ray spectrometer characterized by a spatial resolution of less than 100 μ m for fluorescence and less than 10 μ m for imaging. A couple of polycapillary lenses in a confocal configuration together with a silicon drift detector allow elemental studies of extended samples ( 3 mm ) to be performed, while a CCD camera makes it possible to record an image of the same samples with 6 μ m spatial resolution, which is limited only by the pixel size of the camera. By inserting a compound refractive lens between the sample and the CCD camera, we hope to develop an x-ray microscope for more enlarged images of the samples under test.

© 2008 Optical Society of America

OCIS Codes
(040.6040) Detectors : Silicon
(170.1790) Medical optics and biotechnology : Confocal microscopy
(180.1790) Microscopy : Confocal microscopy
(180.2520) Microscopy : Fluorescence microscopy
(340.7440) X-ray optics : X-ray imaging
(340.7460) X-ray optics : X-ray microscopy

ToC Category:
X-ray Optics

History
Original Manuscript: July 22, 2008
Revised Manuscript: October 7, 2008
Manuscript Accepted: October 8, 2008
Published: November 18, 2008

Virtual Issues
Vol. 4, Iss. 2 Virtual Journal for Biomedical Optics

Citation
D. Hampai, S. B. Dabagov, G. Cappuccio, A. Longoni, T. Frizzi, G. Cibin, V. Guglielmotti, and M. Sala, "Elemental mapping and microimaging by x-ray capillary optics," Opt. Lett. 33, 2743-2745 (2008)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-33-23-2743


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References

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