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15 Sep 2001

Volume 90, Issue 6, pp. 2635-3127

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Coronary angiography using laser plasma sources: X-ray source efficiency and optimization of a bent crystal monochromator

E. Andersson, G. Hölzer, E. Förster, M. Grätz, L. Kiernan, A. Sjögren, and S. Svanberg

J. Appl. Phys. 90, 3048 (2001); http://dx.doi.org/10.1063/1.1394904 (9 pages) | Cited 13 times

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A monochromator has been developed for coronary angiography, comprising a single bent crystal of silicon in Laue transmission geometry. K spectra of laser irradiated solid tin and tantalum (Z=50 and 73, respectively) targets were measured. The high resolution crystal spectrometer resolve the Sn and Ta Kα doublets, allowing in a proof-of-principle experiment the absolute Kα photon numbers emitted by the source to be determined. The Ta Kα yield is measured as a function of the laser pulse energy, allowing an assessment to be made of the suitability of such sources for medical applications. © 2001 American Institute of Physics.
Show PACS
87.19.Hh Cardiac dynamics
87.59.Dj Angiography
52.50.Jm Plasma production and heating by laser beams (laser-foil, laser-cluster, etc.)
42.55.Vc X- and γ-ray lasers
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