Coronary angiography using laser plasma sources: X-ray source efficiency and optimization of a bent crystal monochromatorAndersson, E; Holzer, G; Forster, E; Gratz, M; Kiernan, L; Sjogren, A; Svanberg, Sune Andersson, E., Holzer, G., Forster, E., Gratz, M., Kiernan, L., Sjogren, A., & Svanberg, S. (2001). Coronary angiography using laser plasma sources: X-ray source efficiency and optimization of a bent crystal monochromator. Applied Physics Reviews, 90(6), 3048-3056. DOI: 10.1063/1.1394904General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal Coronary angiography using laser plasma sources: X-ray source efficiency and optimization of a bent crystal monochromator 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 ͑Zϭ50 and 73, respectively͒ targets were measured. The high resolution crystal spectrometer resolve the Sn and Ta K␣ doublets, allowing in a proof-of-principle experiment the absolute K␣ photon numbers emitted by the source to be determined. The Ta K␣ 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.