Beamlines
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TUKA01
 Shining a Light on Synchrotron Light  
 
  • S. Ravy
    SOLEIL, Gif-sur-Yvette, France
  
  Synchrotron radiation light is now available in many centers throughout the world and it is used by chemists, physicists, biologists, geologists and other scientists to study samples as diverse as crystals, single molecules, viruses, old manuscripts, nanoparticles, cement, thin films or glasses. In this keynote, we will present in a didactic way the essential properties of synchrotron light, and the basic physical phenomena underlying the interaction between synchrotron light and matter: scattering and absorption. The main classes of techniques that beamlines offer to the users community, namely diffusion-diffraction, spectroscopy and imaging, will then be presented. A special emphasis will be given to the huge increase of brilliance, and thus of coherence, that the new generation of synchrotrons have pledged to provide.  
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WEPH36 From Plate Screening to Artificial Intelligence: Innovative developments on PROXIMA 2A at Synchrotron SOLEIL 283
 
  • D. Jeangerard, L. Ciccone, D.K. Desjardins, A. Le Jollec, M. Savko, W. E. Shepard
    SOLEIL, Gif-sur-Yvette, France
  • A. Haouz
    Pasteur Institute, Crystallisation and X-ray Diffraction (PF6), Paris, France
  
  PROXIMA 2A is a high performance 3rd generation synchrotron beamline dedicated to X-ray micro-crystallography on biological macromolecules. Since opening in March 2013, the experimental station has hosted a large number of users who have collected vast amounts of X-ray diffraction images from literally thousands of crystals. In order to streamline the throughput, enhance performance and add functionality, a number of innovative developments have been launched on PROXIMA 2A. These cover all aspects of the beamline, from the practical to the visionary: such as the design, fabrication and implementation of a dedicated high-precision motorized stage to screen crystallization plates for in situ X-ray data collections, and the employment artificial intelligence and computer vision technologies for the detection of samples under liquid nitrogen. Other notable beamline projects include the addition of a vertical translation table for the EIGER X 9M detector to permit the acquisition of ultrahigh (0.6 Å) resolution X-ray data, the incorporation of a miniaturized YAG-coupled photodiode within a beamstop and the determination of the SOC of a recently added kappa arm to the goniometer.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEPH36  
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WEPH40
 A High Power Laser Facility for the ESRF ID24-ED Beamline  
 
  • F. Villar, G. Berruyer, C. Clavel, O. Mathon, S. Pascarelli, S. Pasternak, F. Perrin, P. Ponthenier, N. Sévelin-Radiguet, R. Torchio
    ESRF, Grenoble, France
  
  The ESRF is designing a laser facility for dynamic compression coupled to the ID24-ED beamline in order to study the properties and dynamic behavior of matter under extreme pressure and temperature. To achieve this, a pulsed laser will be focused on samples together with the Xray beam used to perform absorption spectroscopy. The laser setup is placed in a dedicated clean room from which an 85mm diameter beam is transported in the experimental hutch to the laser/sample interaction chamber thanks to a 15m long optical system. The laser beam is then focused down to 250 micrometres on the sample. Operating ID24-ED at different energies requires the samples to be rotated by about 40 degrees around the last Xray optical element of the beamline, a polychromator placed 1m upstream of the sample. The movement of the sample and the need for the laser to follow it put strong constraints on the mechanical design of the whole setup. We will present the layout of laser facility, the opto-mechanical system of mirrors and lenses used to transport the laser onto the sample, the kinematics of the mechanical system used to follow the rotation of the sample and the mechanical design of the interaction chamber.  
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WEPH41 The Detector Adjustment System of Taiwan Photon Source 24A 294
 
  • B.Y. Chen, M. Y. Hsu, L. Lai, X. Y. Li, D.-J. Wang, G.C. Yin
    NSRRC, Hsinchu, Taiwan
  
  The soft X-ray tomography endstation of TPS has the ability to provide 3D biological cell images by fluores-cence structured-illumination microscopy (SIM) and soft x-ray tomography (SXT). The electron energy is design to be in the range of 200 eV to 3 keV. The detector system equipped with an Andor® iKon-L Series imaging CCD, X-Z-roll-pitch adjustment stage, and long stroke bellows system. The detector system can adjust the CCD about 10 mm in both X and Z direction, and ±5 degree of roll. Moreover, the long stroke bellows system gives the CCD an extra degree of freedom in the Y direction and its range is up to 2500 mm. That can locate the CCD close to the sample to get a larger field of view, and far from the sample to get higher image resolution. In this study, the design and commission status of the detector system is studied and the mechanical structures are also presented.
soft X-ray tomography, Detector system 		 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEPH41  
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THOPMA01 Piezo Technology in Synchrotron 321
 
  • B. Laluc, T. Maillard, A. Riquer
    CTEC, MEYLAN, France
  
  Synchrotrons need robust products. That is why the association of piezo actuator technology and CEDRAT TECHNOLOGIES (CTEC) know-how has been successful for synchrotron mechanisms projects. The technological brick is the "Amplified Piezo Actuator" (APA®) tested and widely used in space applications, it is often implemented in CTEC piezo mechanisms and provides a high level of robustness. Modifying the layout and the number of APA® allows several needs to be addressed within beamlines. Three applications developed in collaboration with the EMBL, PAL and SOLEIL will be presented in this paper. The first application consists of cutting a beam with a piezo shutter. The maximum beam diameter is 3 mm. The second mechanism allows the energy of a beam to be modified by using a series of piezo actuated filters. And the last mechanism aims at modifying the beam section shape with an active piezo micro-slits mechanism.
"Synchrotron SOLEIL"
"EMBL ESRF Grenoble"
"www.cedrat-technologies.com" 		 
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DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THOPMA01  
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THOPMA02 Beamline Engineering Overview for the APS Upgrade 324
 
  • O.A. Schmidt, E. Benda, D. Capatina, T.K. Clute, J.T. Collins, M. Erdmann, T. Graber, D. Haeffner, Y. Jaski, J.J. Knopp, G. Navrotski, R. Winarski
    ANL, Argonne, Illinois, USA
  
  Funding: US Department of Energy, University of Chicago LLC
The Advanced Photon Source (APS) is currently in the process of upgrading to a 4th generation high-energy light source. A new multi-bend achromat storage ring will provide increased brightness and an orders-of-magnitude improvement in coherent flux over the current facility. To take advantage of these new capabilities, we will be building nine new feature beamlines and implementing numerous additional beamline enhancements, all while ensuring the compatibility of existing programs. Clear challenges exist in advancing state-of-the-art optics and developing nano-resolution instrumentation. We also need to recognize and address project scheduling, labor resources, existing infrastructure, bending magnet param-eters, and possible modifications to radiation shielding in order to achieve project success.
Sub Classification should be something like General Beamline Design but option not available. 		 
slides icon Slides THOPMA02 [15.407 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THOPMA02  
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THOPMA03
 PtyNAMi: Ptychographic Nano-Analytical Microscope at PETRA III -How to Achieve Sub-nanometer Sample Stability  
 
  • R. Doehrmann, S. Botta, G. Falkenberg, J. Garrevoet, M. Kahnt, M. Lyubomirskiy, M. Scholz, C.G. Schroer, A. Schropp, M. Seyrich, P. Wiljes
    DESY, Hamburg, Germany
  
  In recent years, ptychography has been established as a method in X-ray microscopy to achieve a spatial resolution even below the diffraction limit of x-ray optics, down to a few nm. This requires, among other things, an extremely high degree of mechanical stability, a low background signal from the x-ray microscope and highest demands on the beam guiding and focusing optics. PtyNAMi is the new generation hard x-ray scanning microscope at beamline P06 of PETRA III at DESY combining a sample scanner designed for maximal stability, a new detector system designed to reduce background signals, and an interferometric position control of sample and X-ray optics. The interferometer system enables tracking the sample position relative to the optics in scanning microscopy and tomography on all relevant time scales. This is crucial for high-resolution scanning x-ray microscopy to track vibrations and long-term drifts in the noisy environment of a synchrotron radiation source in user operation. We present the design concept in detail with a special focus on real-time metrology of the sample position during 3D x-ray scanning microscopy using a ball-lens retroreflector.  
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THOPMA04 A New Procurement Strategy to Challenge the Supplier Constraints Created When Using a Fully Developed Reference Design 327
 
  • G.E. Howell, N. Baker, S. Davies, M. Garcia-Fernandez, H.C. Huang, S.M. Scott, A. Walters, K. Zhou
    DLS, Oxfordshire, United Kingdom
  
  A common procurement strategy is to produce a fully optimised reference design that makes assumptions about the manufacturing process and supplier capability. This approach can restrict the opportunities for some companies to include their own specialist manufacturing capability to provide a more effective and cost efficient solution. A new approach is suggested following the recent experience at Diamond Light Source. The manufacture of high stiffness welded fabrications up to 13m in length for the I21 RIXS Spectrometer is used as an example. The I21 RIXS Spectrometer design was optimised for stiffness and control of vibration. The use of Finite Element Analysis enabled different design options and compromises to be explored utilising the supplier's capabilities. The final design was tested during manufacture to verify the FEA model. With the I21 RIXS Spectrometer commissioned the data collected shows the final stability performance of the system including detector stability over full experiment durations has met the scientific goals of the design.  
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DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THOPMA04  
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THPH01
 SAXS/WAXS Complete in Vacuum Endstation Upgrade- Installation Expected Dec2018  
 
  • L.W.S. Adamson
    ASCo, Clayton, Victoria, Australia
  
  The SAXS/WAXS beamline at the Australian Synchrotron is carrying out a complete in house design endstation upgrade to incorporate 2 new in vacuum detectors, a Pilatus3-2M (SAXS) and a Pilatus-100K (WAXS). The new design will encase the new detector, detector stages and multiple beam stops (all in house design) in an 8m x 1.1m x 1.25m long rectangular, modular, aluminium vacuum chamber capable of achieving pressures of 10-4 - 10-5mbar. The 2M and beamstops can be driven the entire length of the chamber for fast change of focal length. The upstream end of the chamber has a 250mm gate valve onto which an in vacuum sample chamber (housing an IV hexapod and positioning stages) can be quickly connected and pumped down in minutes. This chamber can be automatically driven up and out the way and replaced with a flange to take nose cones with kapton windows for in air samples. The entire chamber is mounted on a jacking and air pad system giving the chamber 6 degrees of freedom. The system will dramatically improve signal to noise during data collection, maximise use of the detector area and increase beamline efficiency by reducing time to change focal length from 4hrs to seconds.  
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THPH04 Fast X-Ray Beam Intensity Stabilization for Absorption Spectroscopy and Spectromicroscopic Imaging 343
 
  • M. Birri, D. Ferreira Sanchez, D. Grolimund, B. Meyer, V.A. Samson
    PSI, Villigen PSI, Switzerland
  
  The characteristics of synchrotron sources and beamline optics commonly result in systematic and random variations of the delivered photon flux. In X-ray absorption based measurements, for example, monochromator glitches [1] or the energy dependent gap size of small gap in-vacuum undulators [2] are intrinsic sources for changes in the intensity of the incoming photon flux (I0), however many types of x-ray experiments would benefit from a constant I0. Monochromator Stabilization (MOSTAB) is a common solution for most synchrotron beamlines with double crystal monochromators. This approach is based on the relative alignment of the two monochromator crystals (dynamic detuning) to stabilize beam intensity or position. Obviously, any change in angular alignment of the monochromator crystals will also induce deviations in the beam trajectory and photon energy distribution. At the microXAS undulator beamline of the SLS, we have implemented a system to achieve a constant I0. Two wedge-shaped absorbers produce a spatially uniform attenuation preserving the beam shape without introducing changes in its trajectory. Hardware, control loop and system performance will be presented.
[1] F.Bridges, Nuclear Instruments and Methods in Physics Research A257 (1987) 447-450.
[2] H.Kitamura, J.Synchrotron Rad. 7 (2000), 121-130.
 		 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH04  
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THPH05 An Improved Polarisation Analyser for the I16 Beamline at Diamond 346
 
  • M.H. Burt, S.P. Collins, S. Green, I. Horswell, J. Li, G. Nisbet, R. Pocock, J. Spiers, K.G. Wilkinson
    DLS, Oxfordshire, United Kingdom
  
  The project to upgrade the I16 polarisation analyser was necessary to increase its functionality and to introduce a more robust construction. The requirement that the analyser was to be mounted on a diffractometer meant the construction needed to be as lightweight and as compact as possible. This provided opportunities to explore new collaborative ways of working with both in-house and external suppliers. The paper describes the approach taken to develop lightweight aluminium vacuum chambers working with a company specialising in additive layer manufacturing. In addition, the design of lightweight and compact slit assemblies are detailed; these were developed in collaboration with a supplier of driven linear stages. A novel requirement for the analyser is to have a detector mounted on a rotation axis in vacuum. The results of working with the in-house detector group to develop a design to with all the necessary thermal and electrical connections are described. The paper also describes further use of additive layer manufacturing to produce prototypes that allows the design of a cable management system to be optimised where previously using 3d CAD models had proved unsatisfactory.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH05  
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THPH06 TMO - a New Soft X-Ray Beamline at LCLS II 349
 
  • J.C. Castagna, L. Amores, M. R. Holmes, J.H. James, T.O. Osipov, P. Walter
    SLAC, Menlo Park, California, USA
  
  LCLS is building 4 new soft X-ray beamlines with the LCLS-II upgrade. The TMO (Time resolved Molecular Optical science) beamline aka NEH 1.1 will support many ex-perimental techniques not currently available at LCLS. The beamline hinges around 2 main end stations, LAMP a multi configurable end station and DREAM, dedicated to COLTRIM type of experimentation. Both the existing LAMP as well as the newly built DREAM end-station will be configured to take full advantage of both the high per pulse energy from the copper accelerator (120 Hz) as well as high average intensity and high repetition rate (up to 100 kHz) from the superconducting accelera-tor. Each end station will have its own focusing optic systems (KB Mirrors) which can focus the beam down to 300 nm, and have laser pump probe experiments capability. Very demanding requirements for IR and X-ray overlap as well as beam stability, make the TMO beamline a major engineering challenge. The main components of the beamline (KB optics, DREAM end stations and diagnostics components) are built on granite stands. The building struc-ture is being reviewed for thermal stability. First light on TMO is expected in February 2020  
poster icon Poster THPH06 [0.624 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH06  
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THPH07 Nanosurveyor 2: A Compact Instrument for Nano-Ptychography at the Advanced Light Source 352
 
  • R.S. Celestre, K. Nowrouzi, H.A. Padmore, D.A. Shapiro
    LBNL, Berkeley, California, USA
  • K. Nowrouzi
    UCB, Berkeley, California, USA
  
  Funding: This research used resources of the Advanced Light Source, which is a DOE Office of Science User Facility under contract no. DE-AC02-05CH11231.
The Advanced Light Source has developed a compact tomographic microscope based on soft x-ray ptychography for the study of meso and nanoscale materials [1,2]. The microscope utilizes the sample manipulator mechanism from a commercial TEM coupled with laser interferometric feedback for zone plate positioning and a fast frame rate charge-coupled device detector for soft x-ray diffraction measurements. The microscope has achieved scan rates of greater than 50 Hz, including motor move, data readout and x-ray exposure, with a positioning accuracy of better than 2 nm RMS and has achieved spatial resolution of better than 5 nm. The instrument enables the use of commercially available sample holders compatible with FEI TEMs. This allows in-situ measurement of samples using both soft x-rays and electrons. This instrument is a refinement of a currently commissioned instrument called The Nanosurveyor, which has demonstrated resolution of better than 20nm in both two and three dimensions using 750 eV x-rays. [3] The instrument has been installed on the new COSMIC beamline at the ALS. It will enable spectromicroscopy and tomography of materials with wavelength limited spatial resolution.
[1] P. Thibault, et al, Science, 321, 379 (2008)
[2] P. Denes, et al, Rev. Sci. Inst., 80, 083302 (2009)
[3] D. Shapiro, et al, Nature Photonics volume 8, pages 765-769 (2014)
 		 
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DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH07  
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THPH09 Design of Indirect X-Ray Detectors for Tomography on the Anatomix Beamline 355
 
  • D.K. Desjardins, A.C. Carcy, J.L. Giorgetta, C. Menneglier, M. Scheel, T. Weitkamp
    SOLEIL, Gif-sur-Yvette, France
  
  ANATOMIX* is a long beamline for full-field tomography techniques at the French synchrotron SOLEIL [1]. It will operate in the energy range from 5 to 30 keV, and feature several operation modes via versatile optics configurations, including direct white beam propagation. Two methodologically different experimental stations will be used: parallel-beam X-ray shadowgraphy, for spatial resolution down to the sub-micron range, and full-field transmission X-ray microscopy down to a spatial resolution of less than 100 nm. To cover this large panel of experimental possibilities, the Detector Group, the Mechanical Engineering Group and beamline team have designed four dedicated indirect X-ray detector. For pixels in the sub-micron size range : a micro-tomography revolver camera for versatility, a high-efficiency camera for flux-limited experiments, and a high-resolution camera for the largest optical magnifications will be available. For experiments with a large X-ray beam and pixel sizes from several microns upward, a "large-field" camera completes the set. We describe these different assemblies with the detailed components and expected specification of each solution.
* Beamline largely funded by the French National Research Agency through the EQUIPEX investment program, NanoimagesX.
[1] T Weitkamp et al 2017 J. Phys.: Conf. Ser. 849 012037 		 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH09  
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THPH13
 Development of Instrumentation for X-ray Spectroscopy at the PETRAIII-Beamline P64 at DESY, Hamburg  
 
  • M. Goerlitz
    DESY, Hamburg, Germany
  
  <p>The beamline P64 is located in the north of the PETRA III storage ring. It is dedicated to X-ray absorption spectroscopy experiments with high flux and high photon energy. Regular user operation started on May 5, 2017. Experiments cover wide ranges of research like: solid state physics, catalysis, bio-chemistry, environmental sciences etc.<p>The poster-presentation will concentrate on the two main projects in 2017:
- von-Hamos Spectrometer for X-Ray Fluorescence Spectroscopy
- Liquid Sample Cell<p>In 2017, a new von-Hamos-type X-ray emission spectrometer was constructed and installed at the beamline P64. It is dedicated to work in a 90° geometry for pure fluorescence mode. It comprises, inter alia, a fine-tunable array of cylindrical Bragg crystals, a rail-positioning system for fast detector-alignment and two CMOS-based X-Ray area detectors (LAMBDA-detector).<p>Another development is the construction of a liquid flow cell, which can be used for fluorescence and for absorption spectroscopy. It is used for experiments (as an alternative to the liquid jet), where only small amounts of liquid samples are available or where liquids should be protected from oxygen atmosphere. 		 
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THPH14 Beam Conditioning Optics at the ALBA NCD-SWEET Beamline 365
 
  • N. Gonzalez, C. Colldelram, S. Ferrer, A. Fontserè Recuenco, J.B. González Fernández, G. Jover-Mañas, C. Kamma-Lorger, J. Ladrera Fernández, M.L. Llonch, M. Malfois, J.C. Martínez Guil, I. Sics
    ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain
  
  The SAXS/WAXS Experimental End Station beamline (NCD-SWEET) at ALBA Synchrotron has undergone a major upgrade in the optics and the end station to perform state-of-the-art SAXS/WAXS experiments. In order to reduce X-ray parasitic scattering with air and maximize the photon flux at the sample, an optimized beam conditioning optics has been designed and built in the end station, integrating previously used and new components in vacuum. The beam conditioning optics includes a fast shutter, a set of commercial guard slits and a diagnostic unit com-prising three filters and a four-quadrant transmissive photodiode. In addition, a set of refractive beryllium lenses allowsμfocusing of the beam. The lens system can be removed from the beam path remotely. Finally, an on axis sample viewing system, with a novel design based on an in-vacuum camera mirror and a mica window minimizes the beam path in air up to the sample. To facilitate the alignment of the elements with respect to the beam, all the subsystems are supported by a high-stability granite table with 4 degrees of freedom and sub-micron resolution.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH14  
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THPH15 A New High Precision, Fully Motorized 6-DoF Sample Stage for the ALBA PEEM Endstation 368
 
  • N. Gonzalez, L. Aballe, A. Carballedo, C. Colldelram, M. Foerster
    ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain
  
  A new 6-DOF sample manipulator has been designed for the ALBA Synchrotron PhotoEmission Electron Microscopy (PEEM) experimental station, based on a commercial Elmitec LEEM 3. The new design includes full motorization of all 6 axes with position feedback, no backlash, and maximized stability, crucial to achieve the best spatial resolution of down to 8 nm (in so-called LEEM mode). The in-plane longitudinal and transversal motions with sub-micron resolution are based on high precision linear guides, while the pitch and roll stages (sample tilt), guided by angular guides, are actuated by a double-flexure system, which enhances the overall rigidity of the system. The vertical stage is composed by a high rigidity recirculating roller screw and cross roller guides. Finally, 360° yaw rotation is supplied by a differentially pumped commercial rotary stage. On top of the stage, the sample support is mounted on a customized DN63CF flange. This support keeps the original functionalities of the sample manipulator and holders, with 6 independent electrical contacts, and the possibility to heat the sample up to 2000 K and cool it to 100 K with an improved liquid nitrogen cooling system.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH15  
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THPH17 NCD-SWEET Beamline Upgrade 374
 
  • J.B. González Fernández, C. Colldelram, S. Ferrer, A. Fontserè Recuenco, A.A. Gevorgyan, N. Gonzalez, G. Jover-Mañas, C. Kamma-Lorger, M.L. Llonch, M. Malfois, J.C. Martínez Guil, Y. Nikitin, G. Peña, L. Ribó, I. Sics, E. Solano, J. Villanueva
    ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain
  
  The SAXS/WAXS Experimental End sTation (NCD-SWEET) at ALBA Synchrotron has undergone major improvements in three main areas, beam performance, SAXS detector data quality and beamline operability, in order to perform state-of-the-art SAXS/WAXS experi-ments. A new channel-cut monochromator system has improved the beam quality and stability, with current vibration amplitudes under 1% of the beam size. Two sets of refractive beryllium lenses have been installed for focussing the beam. One of the sets allows to microfocus the beam size. Besides this, the former SAXS CCD detector has been replaced by a single-photon counting pixel detector, a Piltatus3 S 1M. In the end station, a full re-design of the mechanical elements with sub-micron resolution movements together with the installation of new equipment has been completed, resulting in an improved beamline configuration, and a faster and safer rearrangement of the flight tube length. New upgraded configuration also allows for GISAXS experiments. Finally, other auxiliary improvements have been done in areas like radiation protection, air conditioning, health and safety, cable management, electronics and control.  
poster icon Poster THPH17 [5.848 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH17  
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THPH18 A Multi-sample Holder for the MSPD Beamline at ALBA 377
 
  • J.B. González Fernández, F. Farré París, F. Fauth, P. Pedreira, D. Roldán, X. Serra Gallifa
    ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain
  
  At the high resolution powder diffraction end station of the Materials Science and Powder Diffraction (MSPD) beamline at ALBA Synchrotron, several samples are measured on a daily basis. Thus, an automatic sample exchanger is a great asset to the beamline, permitting a more efficient use of beam time. Even if a robot arm is the more suitable option for a sample exchanger device, in terms of cost, compactness and versatility MSPD needs another approach. ALBA engineering division has developed a multi-sample holder that allows the loading of up to eight samples and exchanging between them with a resolution of less than a micron. This new design consists of a customized and motorized linear stage that has been designed to fit into the present three-circles diffractometer, on top of the positioning stages, avoiding any possible collision with the Eulerian cradle. In addition, this new holder permits the use of different types of samples like capillaries in fast spinners, coin cell batteries and electrochemical cells. Finally, the system is compatible with the usual sample conditioning equipment on the end station such as the hot blower, cryostream, beamstop, chiller, etc.  
poster icon Poster THPH18 [3.052 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH18  
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THPH19 Engineering Design of the XPD & PDF Beamline Sample Environment for Safe Experimental Use of Hazardous Gases 379
 
  • E. Haas, M. Abeykoon, S. Buda, E.D. Dooryhee, S. Ghose, C. Stelmach, J.T. Trunk
    BNL, Upton, Long Island, New York, USA
  
  Funding: U.S. Department of Energy
The X-ray Powder Diffraction (XPD) and Pair Distribution Function (PDF) beamlines located at the 28-ID beam port at NSLS-II require a means for safely supplying, containing, and exhausting hazardous gases to and from experimental samples. These beamlines plan to use a wide range of flammable, toxic, and reactive gases for in-situ studies of catalytic and chemical reactions. Since many of the gases are hazardous, a low-cost, robust means is needed to safely supply gases to samples, position the samples quickly, accurately, and remotely, collect scattered X-rays over a wide-angle without distortion, and exhaust the gases safely. Ideally, the sample environment should also allow rapid sample set-up and change-out. The PDF/XPD system includes a sample holder, internal beam stop, sample chamber, and stages that provide eight degrees of freedom. A specially-designed window is also included for maximum X-ray transmission at minimum cost. Sensors, flow metering devices, and circuitry are included to provide proper purging, control hazardous and dilution gas flows, and integrate all of the safeguards needed to assure safe operation.
Note to MEDSI reviewers:
"Contributed Oral" presentation is indicated above, however a poster presentation can be generated by contacting the author via email at haas@bnl.gov if this is preferred. 		 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH19  
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THPH21 DREAM - A New Soft X-ray (Dynamic REAction Microscopy) COLTRIMS Endstation at LCLS-II 382
 
  • M. R. Holmes, L. Amores, J.C. Castagna, J.H. James, T. Osipov, P. Walter
    SLAC, Menlo Park, California, USA
  
  SLAC is building new soft X-ray beamlines to take advantage of the LCLS-II upgrade to 1 MHz. One of the new beamlines is called TMO (Time resolved Molecular Optical science) also known as NEH 1.1. It will be a soft X-ray beamline featuring a sub-micron X-ray focus at its second, most downstream interaction region where the DREAM COLTRIMS (COld Target Recoil Ion Momentum Spectroscopy) endstation will be situated. DREAM will feature; large magnetic coils to provide a strong uniform magnetic field through the spectrometer, rigid in-vacuum laser in- & out-coupling optics decoupled from the chamber support stand for pump-probe experiments, a multi-stage differentially pumped gas jet with catcher, insertable diagnostics, a long-distance microscope, scatter slits, a steerable gas jet, jet slits, and an adjustable stand to bias the spectrometer off-center from the interaction region. In order to achieve a spot overlap spec of 0.5 um; the KB mirrors, laser optics, & beam position diagnostics all sit on a common granite support structure to minimize mechanical vibrations and thermal drifts. An in-vacuum UHV hexapod will be utilized for fine positioning of the laser in-coupling optic.  
poster icon Poster THPH21 [1.947 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH21  
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THPH28 The Development of PAL-XFEL Beamline 397
 
  • S.H. Kim, I. Eom, S-M. Hwang, H.J. Hyun, K.S. Kim, M-J. Kim, S. Kim, S.N. Kim, S. Kim, C. Lee, G.S. Park, J. Park, J.K. Park, S.Y. Rah
    PAL, Pohang, Republic of Korea
  
  Pohang Accelerator Laboratory X-ray Free Electron Laser(PAL-XFEL) is a research facility, which is designed to generate extremely intense (assuming 1x1012 photon/pulse at 12.4 keV) and ultra-short (10-200 femtosecond) pulsed X-rays. Now two beamlines were constructed, the one is hard X-ray and the other is soft X-ray. The beamline is consist of UH (Undulator hall) and OH (Optical hall), EH (Experimental hall). The UH is usually the same as the front end of a beamline, and OH has the same function as PTL (Photon Transfer Line). We have two hutches including HXPP and HCXI in hard X-ray beamline. The two hutches are connected each other, and sharing main optics (Mirrors and DCM, etc). PAL-XFEL is a very precise facility and has very large heat power, so thermal and structural analysis as well as vibration analysis is essential. Now many vacuum components of beamline were installed and completed the test of performance.  
poster icon Poster THPH28 [1.888 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH28  
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THPH30
 Instrumentation for Source-based Calibration of Space Instruments using Synchrotron Radiation at the Metrology Light Source (MLS)  
 
  • J. Lubeck, R. Fliegauf, R. Klein, S. Kroth, P. Paustian, M. Richter, R. Thornagel
    PTB, Berlin, Germany
  
  PTB has been involved in the calibration of many space-based instruments which often require a calibration for the absolute measurement of radiometric quantities. Based on SR, PTB can perform these absolute measurements traceable to the primary national standards. Over the past decades, PTB has performed calibrations for numerous space missions within scientific co-operations and has become an important partner [1]. Dedicated instrumentation in the PTB laboratory at the MLS has been set up for that purpose: A facility for the calibration of radiation transfer sources in the 7 nm to 400 nm spectral range [2], traceable to the MLS as primary SR source standard, is in operation. Also an existing VUV transfer calibration source [3] was upgraded to cover the extended spectral range from 16 nm to 350 nm. Moreover, a large vacuum vessel is available at the MLS, which allows the handling of complete space instruments, opening up the way for calibration of space instruments directly to the primary source standard MLS. By choosing an appropriate electron beam current or electron beam energy, the spectral radiant intensity and spectral shape can be adjusted to best suit the calibration task.
[1] R. Klein et al., J. Astron. Telesc. Instrum. Syst. 2(4), 044002 (2016).
[2] R. Thornagel et al., Rev. Sci. Instrum. 86, 013106, (2015).
[3] J. Hollandt et al., Metrologia 30, 381 (1993). 		 
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THPH31 Design of a flexible RIXS Setup 400
 
  • D. Meissner, S. Adler, M. Beye, A. Bühner, H. Krüger, R. Platzer, T. Reuss, M. Röhling, E. Saemann, E. Saithong
    DESY, Hamburg, Germany
  
  We present a new mechanical design for a RIXS experiment setup consisting of a sample environment vacuum chamber and corresponding spectrometer. It allows variable beam incidence angles to the sample as well as observation angles of the spectrometer. The dispersive element of the spectrometer can be aligned in five DOF by motors inside the UHV chamber. The alignment of the CCD detector can be adjusted independently in the lateral and longitudinal position as well as incidence angle. In combination with a tiltable detector chamber this design allows for multiple observation methods, not limited to variable energies but also for use of different optics or direct observations of the sample.  
poster icon Poster THPH31 [0.859 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH31  
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THPH35
 The Bright Beamlines - Beamline Build Program of the Australian Synchrotron  
 
  • B. Mountford, A. Walsh
    ASCo, Clayton, Victoria, Australia
  • H. Cherukuvada
    AS - ANSTO, Clayton, Australia
  
  The Australian Synchrotron is entering its first major beamline build program since the completion of its original beamline construction phase which accompanied the construction of the facility. The Bright Program aims to construct 8 Beamlines by 2024 with 2 beamlines having accompanying branchlines and supporting endstations. Conceptual designs of the first two beamlines are underway and are aimed at providing medium energy XAFS (MCT) and micro-computed tomographic imaging capability (MCT), both off bend magnet sources. Planning is well advanced for the following two beamlines with the start of conceptual engineering work expected to start in the second half of 2018. This poster will describe the scope of the Bright Beamline Program and the anticipated beamline engineering challenges that are already identified. The impact on existing technical systems and infrastructure will also be described.  
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THPH36 Engineering Challenges for the NEH2.2 Beamline at LCLS-II 409
 
  • F.P. O'Dowd, D. Cocco, G.L. Dakovski, J. Defever, S. Guillet, C.L. Hardin, D.S. Morton, T.O. Osier, M.A. Owens, D.W. Rich, L. Zhang
    SLAC, Menlo Park, California, USA
  
  SLAC National Accelerator Laboratory is developing LCLS-II, a superconducting linear accelerator based FEL capable of repetition rates up to 1MHz. The NEH2.2 Instrument at LCLS-II will use this combination of exceptionally high flux of monochromatic photons to achieve multidimensional and coherent X-ray techniques that are possible only with X-ray lasers. The challenges, which emanate from delivering the beam from the sub-basement level to the basement of the Near Experimental Hall (NEH) along with the stringent requirements for providing a stable beam at the interaction points, necessitate unique engineering solutions. With this paper we present the conceptual design for the NEH2.2 Instrument along with an overview of the R&D program required to validate design performance. Furthermore, it will additionally show the design of the proposed Liquid Jet Endstation (LJE) and Resonant Inelastic X-Ray Scattering Endstation (RIXS) that will be installed on the beamline. After introducing the context and layout of the beamline, this paper will focus on the technical challenges and present the mechanical design solutions adopted for beam delivery and other strategic components.  
poster icon Poster THPH36 [2.220 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH36  
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THPH37 MAGSTAT V3: An In-Vacuum Variable-Gap Quadrupole with Rotary Permanent Magnets 412
 
  • V. Pinty, N. Jaouen, F. Marteau, H. Popescu, P. Prout
    SOLEIL, Gif-sur-Yvette, France
  
  MAGSTAT is a quadrupole designed to magnetize samples with a variable magnetic field in flow density and in directions. Four rotary permanent magnets allow the user to specify a direction for the field and changing in situ the gap between the poles drives the field intensity. The first prototype was realized in 2016 on the SEXTANTS beamline in the framework of SOLEIL-MAXIV collaboration; a second version has been manufactured for MAXIV SoftImax beamline. This third version shows a significant evolution of the mechanical design, guaranteeing a much better stiffness in high field configurations. Samples up to Ø74mm can be placed in this quadrupole, and the tiny ones which may fit in a Ø10mm circle or smaller, can be magnetized with a 1T local field. The angle of each magnet is driven by a dedicated stepper motors with a big reduction ratio. The total gap is ensured by a single motor, and its motion is symmetrically transferred to the magnets through an Archimedean spiral. The first prototype is installed at COMET endstation dedicated to the coherent scattering of soft X-ray in transmission for imaging magnetic materials via the Fourier Transform Holography or ptychography techniques.  
poster icon Poster THPH37 [57.424 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH37  
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THPH38 Design & Development of an Innovative 6 Axis Sample Manipulator. 415
 
  • M.F. Purling
    DLS, Oxfordshire, United Kingdom
  
  The accurate positioning & alignment of sample specimens within the experimental test chamber on a beam line is always a challenge. The ability to move in any direction and angle to very precise increments with repeatable positioning is crucial for being able to focus on the exact part of the sample required in the correct orientation. It can be made even more difficult when the sample is required to work within the UHV vacuum environment and be cooled to cryogenic temperatures. Initially in conjunction with St Andrews University, Diamond Light Source Ltd. have been developing their own manipulator for this purpose, it has six degrees of freedom for alignment of the sample and easy remote sample plate loading via a transfer arm system. This paper describes the developments made from the initial design to working manipulators with increased functionality for bespoke requirements on four different beamline within Diamond.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH38  
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THPH40 Training the Next Generation of Engineers for Photon Based Light Sources 421
 
  • S.M. Scott
    DLS, Oxfordshire, United Kingdom
  
  The continued increase in the number of Light Sources, their beamlines and the need for upgrades of both machine and beamlines requires an ever larger supply of suitably qualified and experienced engineers. If there is a world wide shortage of Engineers where will facilities find these engineers and how can they be trained to the required level? This paper discusses these issues by looking at the growth of demand for engineers within light sources, the evidence of shortages of engineers, the changes in attitudes to work by younger people, the skills necessary, training opportunities and the issues in attracting people into the light sources industry. The paper will also outline the training week for early career engineers delivered at Diamond.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH40  
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THPH43 New Holder for Dual-Axis Cryo Soft X-Ray Tomography of Cells at the Mistral Beamline 427
 
  • R. Valcárcel, C. Colldelram, N. Gonzalez, E. Pereiro, A.J. Pérez-Berná, A. Sorrentino
    ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain
  
  A new dual-axis sample holder has been designed and built for the Transmission soft X-ray Microscope (TXM) at the MISTRAL beamline (ALBA Synchrotron) to perform cryo-soft X-ray tomography of cells with dual tilt configuration to reduce the missing wedge. The design, with restricted dimensions Ø7x30mm, enables using commercial Auto-Grid support rings that give rigidity to the sample grid handling. It consists of a guided miniature handle with a spring system that allows sample rotation by 90° around the beam axis inside vacuum and in cryogenic conditions by using the TXM sample loading robot keeping a rotation of ±65° at the sample stage. Two magnets fix the positions at 0° and 90°.The two tilt series can be collected consecutively and the use of Au fiducials permits combining both improving the final quality of the 3D reconstructions. In particular, cellular features hidden due to their orientation with respect to the axis of rotation become visible. The main frame is made in aluminium bronze to enhance the thermal conductivity and in addition, all the pieces have undergone an ion implantation treatment in order to reduce friction and improve the anti-seizure property of the parts.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH43  
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