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Title: Micro- and nano-imaging at the diamond beamline I13L-imaging and coherence

Abstract

The Diamond Beamline I13L is dedicated to imaging on the micron- and nano-lengthscale, operating in the energy range between 6 and 30 keV. For this purpose two independent stations have been built. The imaging branch is fully operational for micro-tomography and in-line phase contrast imaging with micrometer resolution. Currently a full-field microscope providing 50nm spatial resolution over a field of view of 100 µm is being tested. On the coherence branch, coherent diffraction imaging techniques such as ptychography and coherent X-ray Bragg diffraction are currently developed. The beamline contains a number of unique features. The machine layout has been modified to the so-called mini-beta scheme, providing significantly increased flux from the two canted undulators. New instrumental designs such as a robot arm for the detector in diffraction experiments have been employed. The imaging branch is operated in collaboration with Manchester University, called therefore the Diamond-Manchester Branchline.

Authors:
 [1];  [2];  [3]; ; ; ; ; ; ;  [1];  [1];  [4];  [1];  [2]
  1. Diamond Light Source Ltd., Harwell Science and Innovation Campus, Didcot, OX 11 0DE (United Kingdom)
  2. (United Kingdom)
  3. (United States)
  4. (Germany)
Publication Date:
OSTI Identifier:
22608345
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1741; Journal Issue: 1; Conference: SRI2015: 12. international conference on synchrotron radiation instrumentation, New York, NY (United States), 6-10 Jul 2015; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; BIOMEDICAL RADIOGRAPHY; BRAGG REFLECTION; DIAMONDS; DIFFRACTION; KEV RANGE; MICROSCOPES; SPATIAL RESOLUTION; TOMOGRAPHY; WIGGLER MAGNETS; X RADIATION

Citation Formats

Rau, C., E-mail: Christoph.rau@diamond.ac.uk, University of Manchester, School of Materials Grosvenor St., Manchester, M1 7HS, Northwestern University School of Medicine, 303 E. Chicago Avenue, Chicago, IL 60611-3008, Wagner, U. H., Vila-Comamala, J., Bodey, A., Parson, A., García-Fernández, M., Pešić, Z., Zanette, I., De Fanis, A., European XFEL GmbH, Notkestraße 85, 22607 Hamburg, Zdora, M., and Department of Physics and Astronomy, University College London, London, WC1E 6BT. Micro- and nano-imaging at the diamond beamline I13L-imaging and coherence. United States: N. p., 2016. Web. doi:10.1063/1.4952831.
Rau, C., E-mail: Christoph.rau@diamond.ac.uk, University of Manchester, School of Materials Grosvenor St., Manchester, M1 7HS, Northwestern University School of Medicine, 303 E. Chicago Avenue, Chicago, IL 60611-3008, Wagner, U. H., Vila-Comamala, J., Bodey, A., Parson, A., García-Fernández, M., Pešić, Z., Zanette, I., De Fanis, A., European XFEL GmbH, Notkestraße 85, 22607 Hamburg, Zdora, M., & Department of Physics and Astronomy, University College London, London, WC1E 6BT. Micro- and nano-imaging at the diamond beamline I13L-imaging and coherence. United States. doi:10.1063/1.4952831.
Rau, C., E-mail: Christoph.rau@diamond.ac.uk, University of Manchester, School of Materials Grosvenor St., Manchester, M1 7HS, Northwestern University School of Medicine, 303 E. Chicago Avenue, Chicago, IL 60611-3008, Wagner, U. H., Vila-Comamala, J., Bodey, A., Parson, A., García-Fernández, M., Pešić, Z., Zanette, I., De Fanis, A., European XFEL GmbH, Notkestraße 85, 22607 Hamburg, Zdora, M., and Department of Physics and Astronomy, University College London, London, WC1E 6BT. 2016. "Micro- and nano-imaging at the diamond beamline I13L-imaging and coherence". United States. doi:10.1063/1.4952831.
@article{osti_22608345,
title = {Micro- and nano-imaging at the diamond beamline I13L-imaging and coherence},
author = {Rau, C., E-mail: Christoph.rau@diamond.ac.uk and University of Manchester, School of Materials Grosvenor St., Manchester, M1 7HS and Northwestern University School of Medicine, 303 E. Chicago Avenue, Chicago, IL 60611-3008 and Wagner, U. H. and Vila-Comamala, J. and Bodey, A. and Parson, A. and García-Fernández, M. and Pešić, Z. and Zanette, I. and De Fanis, A. and European XFEL GmbH, Notkestraße 85, 22607 Hamburg and Zdora, M. and Department of Physics and Astronomy, University College London, London, WC1E 6BT},
abstractNote = {The Diamond Beamline I13L is dedicated to imaging on the micron- and nano-lengthscale, operating in the energy range between 6 and 30 keV. For this purpose two independent stations have been built. The imaging branch is fully operational for micro-tomography and in-line phase contrast imaging with micrometer resolution. Currently a full-field microscope providing 50nm spatial resolution over a field of view of 100 µm is being tested. On the coherence branch, coherent diffraction imaging techniques such as ptychography and coherent X-ray Bragg diffraction are currently developed. The beamline contains a number of unique features. The machine layout has been modified to the so-called mini-beta scheme, providing significantly increased flux from the two canted undulators. New instrumental designs such as a robot arm for the detector in diffraction experiments have been employed. The imaging branch is operated in collaboration with Manchester University, called therefore the Diamond-Manchester Branchline.},
doi = {10.1063/1.4952831},
journal = {AIP Conference Proceedings},
number = 1,
volume = 1741,
place = {United States},
year = 2016,
month = 7
}
  • I13L is the first long beamline at Diamond dedicated to imaging and coherence. Two independent branches will operate in the energy range of 6-30 keV with spatial resolution on the micro- to nano-lengthscale. The Imaging branch is dedicated to imaging and tomography with In-line phase contrast and full-field microscopy on the micron to nano-length scale. Ultimate resolution will be achieved on the Coherence branch at I13L with imaging techniques in the reciprocal space. The experimental stations will be located about 250 m from the source, taking advantage of the coherence properties of the source. The beamline has some outstanding featuresmore » such as the mini-beta layout of the storage ring's straight section. The optical layout is optimized for beam stability and high optical quality to preserve the coherent radiation. In the experimental stations several methods will be available, starting for the first user with in-line phase contrast imaging on the imaging branch and Coherent X-ray Diffraction (CXRD) on the coherence branch.« less
  • I13L is a 250 m long beamline for imaging and coherent diffraction currently under construction at the Diamond Light Source. For modeling the beamline optics the phase-space based ray-tracing code XPHASY was developed, as general ray-tracing codes for x-rays do not easily allow studying the propagation of coherence along the beamline. In contrast to computational intensive wave-front propagation codes, which fully describe the propagation of a photon-beam along a beamline but obscure the impact of individual optical components onto the beamline performance, this code allows to quickly calculate the photon-beam propagation along the beamline and estimate the impact of individualmore » components.In this paper we will discuss the optical design of the I13L coherence branch from the perspective of phase-space by using XPHASY. We will demonstrate how the phase-space representation of a photon-beam allows estimating the coherence length at any given position along the beamline. The impact of optical components on the coherence length and the effect of vibrations on the beamline performance will be discussed. The paper will demonstrate how the phase-space representation of photon-beams allows a more detailed insight into the optical performance of a coherence beamline than ray-tracing in real space.« less
  • I13 is a 250 m long hard x-ray beamline (6 keV to 35 keV) at the Diamond Light Source. The beamline comprises of two independent experimental endstations: one for imaging in direct space using x-ray microscopy and one for imaging in reciprocal space using coherent diffraction based imaging techniques [1]. An outstanding feature of the coherence branch, due to its length and a new generation of ultra-stable beamline instrumentation [2], is its capability of delivering a very large coherence length well beyond 200 μm, providing opportunities for unique x-ray optical experiments. In this paper we discuss the challenges of measuringmore » a large coherence length and present quantitative measurement based on analyzing diffraction patterns from a boron fiber [3]. We also discuss the limitations of this classical method in respect to detector performance, very short and long coherence lengths. Furthermore we demonstrate how a Ronchi grating setup [4] can be used to quickly establish if the beam is coherent over a large area.« less
  • The coherence and imaging beamline I13 is dedicated to hard x-ray imaging on the micro- and nano-lengthscale, performing microscopy either in direct or reciprocal space. For both, lens-based and lensless imaging, two independent stations will be operated in a separate building at a distance of 250 m from the source. The imaging branch will perform in-line phase contrast imaging and tomography over a large field of view in the 6- to 35-keV energy range. In addition, it will be possible to switch to full-field microscopy with 50-nm spatial resolution. Other microscopies will be developed according to the scientific needs. Resolutionmore » beyond the limitations given by the detector and x-ray optics will be achieved with techniques working in the far field. Coherent x-ray diffraction (CXRD) and other coherent diffraction imaging techniques such as ptychography will also be implemented on the same 'coherence' branch. The beamline hosts a number of innovative features such as the so-called 'mini-beta' layout for electron optics in the storage ring or new concepts for beamline instrumentation. The stations will be operational in 2011.« less
  • Substantial upgrades have been made to the beamline BL25SU at SPring-8 for soft X-ray imaging and spectroscopy of solid-state materials. The upgraded beamline consists of two branches: a micro-beam branch with high energy resolution, and a nano-beam branch with small angular divergence. The beamline has been available for use since October 2014, following a half year commissioning period. We present here the beamline performance parameters, including resolving power, photon flux, and focused beam size, which are consistent with designed specifications.