title: 30-Lens interferometer for high-energy X-rays.
abstract: A novel high-energy multi-lens interferometer consisting of 30 arrays of planar compound refractive lenses is reported. Under coherent illumination each lens array creates a diffraction-limited secondary source. Overlapping such coherent beams produces an interference pattern demonstrating strong longitudinal functional dependence. The proposed multi-lens interferometer was tested experimentally at the 100 m-long ID11 ESRF beamline in the X-ray energy range from 30 to 65 keV. The interference pattern generated by the interferometer was recorded at fundamental and fractional Talbot distances. An effective source size (FWHM) of the order of 15 µm was determined from the first Talbot image, proving the concept that the multi-lens interferometer can be used as a high-resolution tool for beam diagnostics.
authors: ESRF, Grenoble 38043, France.
authors: Mikhail
authors: M
authors: Lyubomirskiy
authors: ESRF, Grenoble 38043, France.
authors: Irina
authors: I
authors: Snigireva
authors: National Research Centre `Kurchatov Institute', Moscow 123182, Russian Federation.
authors: Victor
authors: V
authors: Kohn
authors: Institute of Microelectronics Technology RAS, Chernogolovka 142432, Russian Federation.
authors: Sergey
authors: S
authors: Kuznetsov
authors: Institute of Microelectronics Technology RAS, Chernogolovka 142432, Russian Federation.
authors: Vyacheslav
authors: V
authors: Yunkin
authors: ESRF, Grenoble 38043, France.
authors: Gavin
authors: G
authors: Vaughan
authors: Baltic Federal University, Kaliningrad 236041, Russian Federation.
authors: Anatoly
authors: A
authors: Snigirev
keywords: MEMS; Si lenses; Talbot effect; coherence; interferometry