The Diamond Beamline I13L is dedicated to imaging on the micro- and nano-lengthsale, operating in the energy range
between 6 and 30keV. For this purpose two independently operating branchlines and endstations have been built. The
imaging branch is fully operational for micro-tomography and in-line phase contrast imaging with micrometre
resolution. Grating interferometry is currently implemented, adding the capability of measuring phase and small-angle
information. For tomography with increased resolution a full-field microscope providing 50nm spatial resolution with a
field of view of 100μm is being tested. The instrument provides a large working distance between optics and sample to
adapt a wide range of customised sample environments. On the coherence branch coherent diffraction imaging
techniques such as ptychography, coherent X-ray diffraction (CXRD) are currently developed for three dimensional
imaging with the highest resolution.
The imaging branch is operated in collaboration with Manchester University, called therefore the Diamond-Manchester
Branchline. The scientific applications cover a large area including bio-medicine, materials science, chemistry geology
and more. The present paper provides an overview about the current status of the beamline and the science addressed.
The Diamond Beamline I13L is designed to imaging on the micron- and nano-lengthsale with X-rays of energies between 6 and 30 keV . Two independently operating branchlines and endstations have been built at distance of more than 200m from the source for this purpose. The imaging branch is dedicated for imaging in real space, providing In-line phase contrast imaging and grating interferometry with micrometre resolution and full-field transmission microscopy with 50nm spatial resolution.
On the coherence branch coherent diffraction imaging techniques such as ptychography, coherent X-ray diffraction (CXRD) and Fourier-Transform holography are currently developed. Because of the large lateral coherence length available at I13, the beamline hosts numerous microscopy experiments. The coherence branchline in particular contains a number of unique features. New instrumental designs have been employed such as a robot arm for the detector in diffraction experiments and a photon counting detector for diffraction experiments. The so-called ‘mini-beta’ layout in the straight section of the electron storage ring permits modulating the horizontal source size and therefor the lateral coherence length.
We will present the recent progress in coherent imaging at the beamline and the sciences addressed with the instrumental capabilities.
 C. Rau, U. Wagner, Z. Pesic, A. De Fanis Physica Status Solidi (a) 208 (11). Issue 11 2522-2525, 2011, 10.1002/pssa.201184272
We developed a corrective phase plate that enables the correction of residual aberration in reflective, diffractive, and refractive X-ray optics. The principle is demonstrated on a stack of beryllium compound refractive lenses with a numerical aperture of 0.49 10-3 at three synchrotron radiation and x-ray free-electron laser facilities, where we corrected spherical aberration of the optical system. The phase plate improved the Strehl ratio of the optics from 0.29(7) to 0.87(5), creating a diffraction-limited, large aperture, nanofocusing optics that is radiation resistant and very compact.