36 citations · 132 across the 13 of their papers we have counts for
13 papers
WOFRY: a package for partially coherent beamline simulations in fourth-generation storage rings
Manuel Sanchez del Rio, Juan Reyes-Herrera, Rafael Celestre +1
We present WOFRY (Wave Optics FRamework in pYthon), a specialized toolbox designed for wave optics modeling, with particular emphasis on partial coherence. This package is tailored…
Review of speckle-tracking algorithms for x-ray phase contrast imaging: low dose applications
Rafael Celestre, Laurene Quenot, Christopher Ninham +2
X-ray speckles have been used for a wide variety of experiments, ranging from imaging (and tomography), wavefront sensing, spatial coherence measurements all the way to x-ray photo…
Tilting refractive x-ray lenses for fine-tuning their focal length
Rafael Celestre, Thomas Roth, Carsten Detlefs +4
In this work, we measure and model tilted x-ray refractive lenses to investigate their effects on an x-ray beam. The modelling is benchmarked against at-wavelength metrology obtain…
Beam focus modifications by cropping partially coherent X-ray beams
Manuel Sanchez del Rio, Rafael Celestre, Juan Reyes-Herrera +2
We simulate the focusing of a partially-coherent X-ray beam emitted by an undulator in a fourth-generation storage ring performing coherent mode decomposition and wave optics propa…
Polished diamond x-ray lenses
Rafael Celestre, Sergey Antipov, Edgar Gomez +3
We present high quality bi-concave 2D focusing diamond x-ray lenses of apex-radius m produced via laser-ablation and improved via a mechanical polishing process. Both for…
A fast and light tool for partially-coherent beamline simulations in fourth generation storage rings based on coherent mode decomposition
Manuel Sanchez del Rio, Rafael Celestre, Juan Reyes-Herrera +2
A new algorithm to perform coherent mode decomposition of the undulator radiation is proposed. It is based in separating the horizontal and vertical directions, reducing the proble…
Propagation of partially coherent radiation using Wigner functions
Boaz Nash, Nicholas Goldring, Jonathan Edelen +2
Undulator radiation from synchrotron light sources must be transported down a beamline from the source to the sample. A partially coherent photon beam may be represented in phase s…
Recent developments in X-ray lens modelling with SRW
Rafael Celestre, Oleg Chubar, Thomas Roth +2
The advent of 4 generation high-energy synchrotron facilities (ESRF-EBS and the planned APS-U, PETRA-IV and SPring-8 II) and free-electron lasers (Eu-XFEL and SLAC) all…
Modelling phase imperfections in compound refractive lenses
Rafael Celestre, Sebastien Berujon, Thomas Roth +2
Compound refractive lenses (CRL) offer outstanding potential for probe formation in X-ray micro- and nano-analysis as well as for imaging applications, but effective aberration-fre…
X-ray optics and beam characterisation using random modulation: Experiments
Sebastien Berujon, Ruxandra Cojocaru, Pierre Piault +4
In a previous paper, we reviewed theoretically some of the available processing schemes for X-ray wavefront sensing based on random modulation. We here show experimental applicatio…
A hierarchical approach for modelling X-ray beamlines. Application to a coherent beamline
Manuel Sanchez del Rio, Rafael Celestre, Mark Glass +7
We consider different approaches to simulate a modern X-ray beamline. Several methodologies with increasing complexity are applied to discuss the relevant parameters that quantify…
X-ray optics and beam characterization using random modulation: Theory
Sebastien Berujon, Ruxandra Cojocaru, Pierre Piault +4
X-ray near-field speckle-based phase-sensing approaches provide efficient means to characterise optical elements. Here, we present a theoretical review of several of these speckle…
Compact arrangement for femtosecond laser induced generation of broadband hard x-ray pulses
Carlos Giles, Rafael Celestre, Kelin R. Tasca +5
We present a simple apparatus for femtosecond laser induced generation of X-rays. The apparatus consists of a vacuum chamber containing an off-axis parabolic focusing mirror, a ree…