Initial experimentation with in-line holography x-ray phase-contrast imaging with an ultrafast laser-based x-ray source

A Krol; R Kincaid; M Servol; JC Kieffer; Y Nesterets; T Gureyev; A Stevenson; S Wilkins; H Ye; E Lipson; R Toth; A Pogany; I Coman

Conference Proceedings

Initial experimentation with in-line holography x-ray phase-contrast imaging with an ultrafast laser-based x-ray source

A Krol, R Kincaid, M Servol, JC Kieffer, Y Nesterets, T Gureyev, A Stevenson, S Wilkins, H Ye, E Lipson, R Toth, A Pogany, I Coman

Progress in Biomedical Optics and Imaging Proceedings of SPIE | SPIE-INT SOC OPTICAL ENGINEERING | Published : 2007

DOI: 10.1117/12.713634

Abstract

We have investigated experimentally and theoretically the imaging performance of our newly constructed in-line holography x-ray phase-contrast imaging system with an ultrafast laser-based x-ray source. Projection images of nylon fibers with diameters in the 10-330 μm range were obtained using an ultrafast (100 Hz, 28 fs, 40 mJ) laser-based x-ray source with Mo and Ta targets and Be filter, and Gaussian spatial-intensity distribution (FWHMS = 5 μm). A cooled CCD camera (24 μm pitch) with a Gd 2OS 2 screen coupled via 1:1 optical taper was used (FWHMD = 50 μm). We have investigated nylon-fiber image quality vs. imaging setup geometry and x-ray spectra. The following parameters were evaluated: ..

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