Results 181 to 190 of about 562,479 (274)

Polynomial‐shaped electrodes for adaptive X‐ray optics

open access: yesJournal of Synchrotron Radiation, EarlyView.
A shaped electrode design for lithium niobate adaptive X‐ray mirrors connects actuator degrees of freedom to specific polynomial orders, enabling general shape control and the correction of defocus, coma and fourth‐order aberrations with a limited number of inputs.For adaptive mirrors on X‐ray beamlines and optical systems, we describe a strategy for ...
Kenneth A. Goldberg   +2 more
wiley   +1 more source

Mirror alignment by particle swarm optimization for synchrotron radiation beamlines

open access: yesJournal of Synchrotron Radiation, EarlyView.
A particle swarm optimization‐based automated two‐mirror alignment method was developed to restore high‐flux beams in approximately 5 min, and its 15 month deployment demonstrated its robustness and reliability.This article proposes a particle swarm optimization (PSO)‐based automated mirror‐alignment methodology that enables the utilization of high ...
Bunyo Okumura   +5 more
wiley   +1 more source

From analytical to data‐driven: multi‐method optimization of a bendable mirror system for dynamic focusing

open access: yesJournal of Synchrotron Radiation, EarlyView.
A small‐radius‐of‐curvature bendable mirror system is developed for dynamic focusing in X‐ray free‐electron laser and synchrotron radiation beamlines, and a transfer‐learning neural‐network and differential‐evolution framework is used for force‐to‐shape modeling and inverse optimization.
Baoning Sun   +14 more
wiley   +1 more source

Wavefront-Constrained Passive Obscured Object Detection

open access: yes
Accurately localizing and segmenting obscured objects from faint light patterns beyond the field of view is highly challenging due to multiple scattering and medium-induced perturbations.
Y Ouyang (13686946)   +9 more
core   +1 more source

Reaching the precision limit with tensor-based wavefront shaping. [PDF]

open access: yesNat Commun
Gutiérrez-Cuevas R   +3 more
europepmc   +1 more source

DanMAX – a beamline for materials science using powder X‐ray diffraction, total scattering, and full‐field tomographic imaging

open access: yesJournal of Synchrotron Radiation, EarlyView.
The DanMAX beamline at the MAX IV laboratory is designed for in situ and in operando studies using powder X‐ray diffraction, total scattering, and full‐field imaging in the 15–35 keV energy range.DanMAX is a hard X‐ray materials science beamline at the ultra‐low emittance 3 GeV storage ring at the MAX IV laboratory.
Mads Ry Vogel Jørgensen   +17 more
wiley   +1 more source

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