Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Ya. I. Nesterets"'
Autor:
Ya. I. Nesterets, Daniel Hausermann, Patrick C. Brennan, Brian Abbey, Jane Fox, Seyedamir Tavakoli Taba, Giuliana Tromba, Zdenka Prodanovic, Christopher Hall, Darren Lockie, Darren Thompson, Timur E. Gureyev, Andrew G. Peele, Patrycja Baran, Matthew Richard Dimmock, Harry M Quiney, Benedicta D. Arhatari, Konstantin Mikhailovitch Pavlov, Beena Kumar, Marian Cholewa, Sarah J. Lewis, Sheridan C. Mayo, Anton Maksimenko, Alira Mihocic
Publikováno v:
Medical physicsReferences. 46(12)
PURPOSE Propagation-based phase-contrast computed tomography (PB-CT) is a method for three-dimensional x-ray imaging that utilizes refraction, as well as absorption, of x rays in the tissues to increase the signal-to-noise ratio (SNR) in the resultan
Autor:
Susanne Wienbeck, Fulvia Arfelli, Timur E. Gureyev, Diego Dreossi, Maura Tonutti, Sarah J. Lewis, Patrycja Baran, Patrick C. Brennan, Jonas Albers, Giuliana Tromba, Ya. I. Nesterets, Christina Perske, Konstantin Mikhailovitch Pavlov, S. C. Mayo, U. Fischer, S. Tavakoli Taba, Serena Pacilè, Christian Dullin, Anton Maksimenko
Publikováno v:
Scientific Reports
Scientific Reports, Vol 9, Iss 1, Pp 1-7 (2019)
Scientific Reports, Vol 9, Iss 1, Pp 1-7 (2019)
In this study we demonstrate the first direct comparison between synchrotron x-ray propagation-based CT (PB-CT) and cone-beam breast-CT (CB-CT) on human mastectomy specimens (N = 12) including different benign and malignant lesions. The image quality
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d9844e7864dc4aedbb3764f1c0de64c2
https://www.nature.com/articles/s41598-019-50075-6
https://www.nature.com/articles/s41598-019-50075-6
Publikováno v:
Physical Review A. 97
A generic computational imaging setup is considered which assumes sequential illumination of a semitransparent object by an arbitrary set of structured coherent illumination patterns. For each incident illumination pattern, all transmitted light is c
Autor:
Seyedamir Tavakoli Taba, Daniel Hausermann, Diego Dreossi, Tim E. Gureyev, Jane Fox, Patrycja Baran, Giuliana Tromba, Patrick C. Brennan, Harry M Quiney, Ya. I. Nesterets, Darren Thompson, Christian Dullin, Marian Cholewa, Fabrizio Zanconati, Matthew Richard Dimmock, Christopher Hall, Mikkaela McCormack, Sarah J. Lewis, Andrew G. Peele, Sheridan C. Mayo, Darren Lockie, Serena Pacilè, Fulvia Arfelli, Benedicta D. Arhatari, Zdenka Prodanovic
Publikováno v:
Microscopy and Microanalysis. 24:146-147
Publikováno v:
Physical Review A. 92
We show that an arbitrary spatial distribution of complex refractive index decrement inside an object can be exactly represented as a sum of two ``monomorphous'' complex distributions, i.e., distributions with the ratios of the real part to the imagi
Autor:
Ya. I. Nesterets, Steve Wilkins
Publikováno v:
Journal of Applied Crystallography. 41:237-248
Quantitative analysis of the focusing performance of bent Laue crystals is carried out using the rigorous wave-optical formalism.Vianumerical solution of the Takagi equations and the Fresnel integral, the influence of diffraction on the formation of
Autor:
Ya. I. Nesterets
Publikováno v:
Optics Communications. 281:533-542
A theoretical formalism describing the formation of images in a linear shift invariant X-ray optical system is derived within the wave-optical theory. It is applicable to a non-crystalline object consisting of two types of features, with the characte
Publikováno v:
Optics Communications. 280:39-48
Possibilities are investigated for quantitative computed tomography (CT) reconstruction of the spatial distribution of refractive index in a region of interest (ROI) inside an object which is larger than the field of view. The analysis is presented f
Autor:
Dmitry Roshchupkin, D. V. Kazakov, Ya. I. Nesterets, Vasily I. Punegov, D. V. Punegov, D. V. Irzhak
Publikováno v:
Technical Physics Letters. 33:244-247
The process of diffuse x-ray scattering from a crystal modulated by surface acousdtic wave is considered. It is shown that the angular distribution of the diffuse scattering intensity depends on variation of the gradient of the ultrasonic wave amplit
Publikováno v:
Journal of Physics D: Applied Physics. 38:4259-4271
A theoretical analysis of the combined analyser-based/propagation-based x-ray phase-contrast imaging of weak objects is presented in the case of partially coherent illumination. It takes into account the finite size and divergence of a polychromatic