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Adaptable refractive correctors for X-ray optics
Authors:
David
Laundy
(Diamond Light Source)
,
Vishal
Dhamgaye
(Diamond Light Source; Raj Ramanna Centre for Advanced Technology (RRCAT))
,
Thomas
Moxham
(Diamond Light Source; University of Oxford)
,
Kawal
Sawhney
(Diamond Light Source)
Co-authored by industrial partner:
No
Type:
Journal Paper
Journal:
Optica
, VOL 6
State:
Published (Approved)
Published:
December 2019

Abstract: Advances in x-radiation sources put greater demands on x-ray optics. Fabrication errors in optical elements lead to deformation of the radiation wavefront, which prevents diffraction-limited imaging of the source. A new adaptable x-ray phase compensator using refracting elements has been developed, fabricated, and tested. The compensator makes a sinusoidal correction to the x-ray wavefront with variable amplitude, period, and phase. The adaptable compensator was used to correct two planar compound refractive lenses and a Kirkpatrick–Baez mirror system on an x-ray beamline. Wavefront measurements showed a reduction in the rms wavefront error by a factor of seven for the lenses and three for the mirror system, reducing rms wavefront errors down to of order 𝜆/100 λ/100 . This concept could be used with optics on existing x-ray beamlines to enable diffraction-limited focusing.
Subject Areas:
Technique Development,
Physics
Instruments:
B16-Test Beamline
Documents:
gh5434tgg.pdf