X-Ray imaging: Soft focus

Optimum driving a Z-pinch for soft X-Ray lasers

A capillary plasma z-pinch as an alternative active medium of soft X-Ray lasers was studied experimentally and theoretically. The theoretical analysis was based on the self consistent solution of the so called “snow plow” model. The dynamics of pinched plasma is determined by the capillary parameters and by the time dependence of electrical current passing through it. The current time dependenc...

Propagation-based x-ray phase-contrast imaging with broad focus conventional x-ray sources

A propagation-based x-ray phase-contrast imaging (PBI) setup using a conventional x-ray source (LFF Cu target) is presented. A virtual x-ray source of 40 x 50 μm was created by using, horizontally, a 6 take-off angle (with the x-ray tube working in the line focus geometry) and, vertically, a 50 μm slit . The sample was set 12 m from the source. Propagation-based x-ray phase-contrast (PB) image ...

Evaluation of multifunctional targeted gold nanoparticles on X-ray attenuation in nasopharyngeal cancer cells by X- ray imaging

Introduction: Head-and-neck cancer is the sixth most common cancer worldwide with the number of cases consistently increasing in developing countries. Successful development of effective, safe and cost effective nanoprobes for head-and-neck cancer targeting imaging is a big challenge. This study is aimed to develop cysteamine-folate conjugated gold nanoparticles (F-Cys-AuNPs) a...

Soft X - Ray Imaging Design and Analysis Methods on Diii

X-ray generation by femtosecond laser pulses and its application to soft X-ray imaging microscope

We have developed laser-produced plasma X-ray sources using femtosecond laser pulses at lOHz repetition rate in a table-top size in order to investigate basic mechanism of X-ray emission from laser-matter interactions and its application to a X-ray microscope. In a soft X-ray region over 5 nm wavelength, laser-plasma X-ray emission from a solid target achieved an intense flux of photons of the ...