Keyword: synchrotron
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TUPHA003 BDN NSLS-II Project Status: How to Recycle a Synchrotron? ion, controls, detector, HOM 365
 
  • O. Ivashkevych, M. Abeykoon, J. Adams, G.L. Carr, L.C. De Silva, S. Ehrlich, M. Fukuto, R. Greene, C.A. Guerrero, J. Ma, G. Nintzel, P. Northrup, D. Poshka, R. Tappero, Z. Yin
    BNL, Upton, Long Island, New York, USA
 
  With many synchrotron facilities retiring or going through upgrades, what is the future of the some of the state-of-the-art equipment and the beamlines built for a specific science at these older facilities? Can the past investments continue supporting the current scientific mission? Beamlines Developed by NSLS2 (BDN) started in 2013 as the NxtGen project prior to NSLS last light on September, 30 2014. Hundreds of pieces of equipment still scientifically useful and valuable have been collected, packed and stored to become part of the new beamlines at the NSLS2 complex. CMS and TES beamlines were built in 2016 in 6 month from bare hutches to the First Light and are already doing user science. QAS, XFM, FIS/MET are taking first light in late 2017/early 2018 and users in 2018. Repurposed components have been fitted with standard NSLS2 EPICS based control systems, Delta Tau motion controllers, digital imaging. Intensity monitors and diagnostics have been equipped with new electronics. Data collection is performed via home grown customizable, beamline specific Bluesky Data Acquisition System. Status of the project and an overview of controls efforts will be presented.  
poster icon Poster TUPHA003 [0.898 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUPHA003  
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TUPHA032 Parallel Processing for the High Frame Rate Upgrade of the LHC Synchrotron Radiation Telescope ion, controls, radiation, real-time 442
 
  • D. Alves, E. Bravin, G. Trad
    CERN, Geneva, Switzerland
 
  The Beam Synchrotron Radiation Telescope (BSRT) is routinely used for estimating the transverse beam size, pro'le and emittance in the LHC; quantities playing a crucial role in the optimisation of the luminosity levels required by the experiments. During the 2017 LHC run, the intensi'ed analog cameras used by this system to image the beam have been replaced by GigE digital cameras coupled to image intensi'ers. Preliminary tests revealed that the typically used sub-image rectangles of 128×128 pixels can be acquired at rates of up to 400 frames per second, more than 10 times faster than the previous acquisition rate. To address the increase in CPU workload for the image processing, new VME CPU cards (Intel 4 core/2.5GHz/8GB RAM) are envisaged to be installed (replacing the previous Intel Core 2 Duo/1.5GHz/1GB RAM). This paper focuses on the software changes proposed in order to take advantage of the multi-core capabilities of the new CPU for parallel computations. It will describe how beam profile calculations can be pipe-lined through a thread pool while ensuring that the CPU keeps up with the increased data rate. To conclude, an analysis of the system performance will be presented.  
poster icon Poster TUPHA032 [1.673 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUPHA032  
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TUPHA083 The TimIQ Synchronization for Sub-Picoseconds Delay Adjustment ion, laser, electron, experiment 604
 
  • J.P. Ricaud, N. Hubert, M. Labat, C. Laulhé
    SOLEIL, Gif-sur-Yvette, France
  • H. Enquist
    MAX IV Laboratory, Lund University, Lund, Sweden
  • C. Laulhé
    Université Paris-Saclay, Saint-Aubin, France
 
  Synchrotron facilities provides short, regular and high frequency flashes of light. These pulses are used by the scientific community for time resolved experiments. To improve the time resolution, demands for always shorter X-ray pulses are growing. To achieve this goal, Synchrotron SOLEIL and MAX IV laboratory have developed special operating modes such as low-alpha and femtoslicing, as well as a single pass linear accelerator. For the most demanding experiments, the synchronization between short light pulses and pump-probe devices requires sub-picoseconds delay adjustment. The TimIQ system has been developed for that purpose. It is a joint development between Synchrotron Soleil and MAX IV Laboratory. It is aimed to be used on three beamlines at Soleil and one at MAX IV. Based on IQ modulation technics, it allows shifting a radio frequency clock by steps of #100 fs. This paper is a description of this system and of its performances.  
poster icon Poster TUPHA083 [1.727 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUPHA083  
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TUPHA188 SOLARIS Digital User Office ion, experiment, radiation, operation 873
 
  • T. Szymocha, A. Górkiewicz, P. Peterman, M.J. Stankiewicz, J. Szota-Pachowicz
    Solaris National Synchrotron Radiation Centre, Jagiellonian University, Kraków, Poland
  • A. Pulapa, R. Rozanska, T. Szepieniec
    Cyfronet, Kraków, Poland
 
  Polish National Center for Synchrotron Radiation SOLARIS UJ is being prepared for first users. In order to facilitate process of user management, proposal submission, review and beam time allocation the SOLARIS Digital User Office project has been started. The DUO is developed in collaboration with Academic Computer Center CYFRONET AGH. The DUO consists of several main components. The user management component allows user registration and user affiliation management. The proposal submission component facilitate filling proposal form, indicating co-proposers and experimentalist. The review component supports process of decision making, including the Review Meeting event and grading proposals process. Apart of managing the main processes, the application provides an additional functionalities (e.g. experimental reports, trainings, feedbacks). DUO was designed as an open platform to face the challenges related to continually changing Solaris facility. Therefore, the business logic is described as an easily maintainable rule-based specification. To achieve good user experience modern web technologies were used including: Angular for the front-end part and Java Spring for server.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUPHA188  
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TUSH203 System Identification and Control for the Sirius High-Dynamic DCM ion, controls, target, instrumentation 997
 
  • R.M. Caliari, R.R. Geraldes, M.A.L. Moraes, G.B.Z.L. Moreno
    LNLS, Campinas, Brazil
  • R. Faassen, T.A.M. Ruijl, R.M. Schneider
    MI-Partners, Eindhoven, The Netherlands
 
  Funding: Brazilian Ministry of Science, Technology, Innovation and Communication
The monochromator is known to be one of the most critical optical elements of a synchrotron beamline. It directly affects the beam quality with respect to energy and position, demanding high stability performance and fine position control. The new high-dynamics DCM (Double-Crystal Monochromator) [1] prototyped at the Brazilian Synchrotron Light Laboratory (LNLS), was designed for the future X-ray undulator and superbend beamlines of Sirius, the new Brazilian 4th generation synchrotron [2]. At this kind of machine, the demand for stability is even higher, and conflicts with factors such as high power loads, power load variation, and vibration sources. This paper describes the system identification work carried out for enabling the motion control and thermal control design of the mechatronic parts composing the DCM prototype. The tests were performed in MATLAB/Simulink Real-Time environment, using a Speedgoat Real-Time Performance Machine as a real-time target. Sub-nanometric resolution and nanometric stability at 300 Hz closed loop bandwidth in a MIMO system were targets to achieve. Frequency domain identification tools and control techniques are presented in this paper.
 
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DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUSH203  
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WEAPL04 Nanoprobe Results: Metrology & Control in Stacked Closed-Loop Systems ion, controls, feedback, TANGO 1028
 
  • C. Engblom, Y.-M. Abiven, F. Alves, N. Jobert, S.K. Kubsky, F. Langlois, A. Lestrade
    SOLEIL, Gif-sur-Yvette, France
  • T. Stankevic
    MAX IV Laboratory, Lund University, Lund, Sweden
 
  Over the course of four years, the Nanoprobe project worked to deliver prototypes capable of nm-precision and accuracy with long-range millimetric sample positioning in 3D- scanning tomography for long beamline endstations of Synchrotron Soleil and MAXIV. The ambition of the project necessitated a joint progress between several fields of expertise combining mechanics, metrology, motion control, and software programming. Interferometry in stage characterization has been a crucial point; not only to qualify motion errors but to actively integrate it into control systems with feedback and/or feedforward schemes in order to reduce XYZ position errors down to the nm- level. As such, a new way of characterizing rotation stages was developed and ultimately used in control schemes utilising the Delta Tau PowerPMAC platform. This paper details the obtained results as well as the methodology and approach of the project to achieve this.  
video icon Talk as video stream: https://youtu.be/GfYevZlVioo  
slides icon Slides WEAPL04 [7.533 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-WEAPL04  
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THMPA02 Investigations of Spatial Process Model for the Closed Orbit Feedback System at the Sis18 Synchrotron at GSI ion, closed-orbit, feedback, acceleration 1301
 
  • S.H. Mirza, P. Forck, H. Klingbeil, R. Singh
    GSI, Darmstadt, Germany
  • H. Klingbeil
    TEMF, TU Darmstadt, Darmstadt, Germany
 
  Funding: The work is supported by the Deutscher Akademischer Austauschdienst under contact No. 91605207
A closed orbit feedback system is under development at the GSI SIS18 synchrotron for usage during the whole acceleration cycle including the acceleration ramp. Singular value decomposition (SVD) is the most widely used technique in global closed orbit correction for eigenmode decomposition, mode selection and pseudo-inversion of Orbit Response Matrix (ORM) for robust calculation of corrector magnet strengths. A new faster inversion technique based upon Discrete Fourier Transform (DFT) has been proposed for SIS18 ORM exploiting the Circulant symmetry, a class of matrices which can be diagonalized by the DFT using only one row or column of the matrix. The existence of a clear relationship between SVD modes and singular values to DFT modes and coefficients for such matrices has been described. The DFT based decomposition of Circulant ORM gives hints on physical interpretation of SVD and DFT modes of perturbed closed orbit in a synchrotron. As a first practical application, DFT modes were used to provide robustness against sensor failures such as one or two malfunctioning BPMs.
 
slides icon Slides THMPA02 [1.762 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THMPA02  
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THPHA034 The Study of Big Data Tools Usages in Synchrotrons ion, experiment, controls, HOM 1428
 
  • S. Alizada, A. Khaleghi
    ILSF, Tehran, Iran
  • A. Khaleghi
    IKIU, Qazvin, Iran
 
  In today's world, there is plenty of data being generated from various sources in different areas across economics, engineering and science. For instance, accelerators are able to generate 3 PB data just in one experiment. Synchrotrons industry is an example of the volume and velocity of data which data is too big to be analyzed at once. While some light sources can deal with 11 PB, they confront with data problems. The explosion of data become an important and serious issue in today's synchrotrons world. Totally, these data problems pose in different fields like storage, analytics, visualisation, monitoring and controlling. To override these problems, they prefer HDF5, grid computing, cloud computing and Hadoop/Hbase and NoSQL. Recently, big data takes a lot of attention from academic and industry places. We are looking for an appropriate and feasible solution for data issues in ILSF basically. Contemplating on Hadoop and other up-to-date tools and components is not out of mind as a stable solution. In this paper, we are evaluating big data tools and tested techniques in various light source around the world for data in beamlines studying the storage and analytics aspects.  
poster icon Poster THPHA034 [1.345 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THPHA034  
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THPHA042 ASCI: A Compute Platform for Researchers at the Australian Synchrotron ion, interface, GPU, hardware 1455
 
  • J. Marcou, R.R.I. Bosworth
    ASCo, Clayton, Victoria, Australia
  • R. Clarken
    SLSA-ANSTO, Clayton, Australia
  • P. Martin, A. Moll
    SLSA, Clayton, Australia
 
  The volume and quality of scientific data produced at the Australian Synchrotron continues to grow rapidly due to advancements in detectors, motion control and automation. This makes it critical that researchers have access to computing infrastructure that enables them to efficiently process and extract insight from their data. To facilitate this, we have developed a compute platform to enable researchers to analyse their data in real time while at the beamline as well as post-experiment by logging in remotely. This system, named ASCI, provides a convenient web-based interface to launch Linux desktops running inside Docker containers on high-performance compute hardware. Each session has the user's data mounted and is preconfigured with the software required for their experiment. This poster will present the architecture of the system and explain the design decisions in building this platform.  
poster icon Poster THPHA042 [1.402 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THPHA042  
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THPHA043 Lightflow - a Lightweight, Distributed Workflow System ion, distributed, EPICS, experiment 1457
 
  • A. Moll, R. Clarken, P. Martin, S.T. Mudie
    SLSA-ANSTO, Clayton, Australia
 
  The Australian Synchrotron, located in Clayton, Melbourne, is one of Australia's most important pieces of research infrastructure. After more than 10 years of operation, the beamlines at the Australian Synchrotron are well established and the demand for automation of research tasks is growing. Such tasks routinely involve the reduction of TB-scale data, online (realtime) analysis of the recorded data to guide experiments, and fully automated data management workflows. In order to meet these demands, a generic, distributed workflow system was developed. It is based on well-established Python libraries and tools. The individual tasks of a workflow are arranged in a directed acyclic graph and one or more directed acyclic graphs form a workflow. Workers consume the tasks, allowing the processing of a workflow to scale horizontally. Data can flow between tasks and a variety of specialised tasks is available. Lightflow has been released as open source on the Australian Synchrotron GitHub page  
poster icon Poster THPHA043 [0.582 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THPHA043  
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THPHA055 Status of the NSRC SOLARIS Control System ion, controls, TANGO, GUI 1492
 
  • W.T. Kitka, M.B. Burzynski, M.K. Fa'owski, P. Galuszka, K. Kedron, A. Kisiel, G.W. Kowalski, P. Kurdziel, M. Ostoja-Gajewski, P. Sagało, M.J. Stankiewicz, T. Szymocha, A.I. Wawrzyniak, K. Wawrzyniak, I.S. Zadworny
    Solaris National Synchrotron Radiation Centre, Jagiellonian University, Kraków, Poland
 
  A National Synchrotron Radiation Centre SOLARIS is a first synchrotron light source in Poland. SOLARIS consists of a linear accelerator , 1.5 GeV storage ring and 2 beamlines (PEEM and UARPES). The beamlines are in commissioning phase and should be ready for the first users in 2018. Additionally there are plans for a few next beamlines. The control system is based on Tango Controls. The system is fully operational. An archiving system uses HDB, TDB and HDB++ tools. PLC system consists of two parts: MPS (Machine Protection System) and PSS (Personal Safety System). The control system has been upgraded recently and it is constantly being improved to meet expectations of its users. The status of the SOLARIS Control System will be presented.  
poster icon Poster THPHA055 [1.605 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THPHA055  
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THPHA148 Conceptual Design of Power Supply Control System for ILSF ion, controls, power-supply, storage-ring 1734
 
  • A. Bayramiyan, M. Akbari, M. Jafarzadeh, A. Khalilzadeh, J. Rahighi, E.H. Yousefi
    ILSF, Tehran, Iran
 
  The Iranian Light Source Facility which is currently under design is a new 3 GeV third generation synchrotron light source. The storage ring circumference is 538 m. The conceptual design of power supply control system is presented in this paper which contain control system architecture, software toolkit and controller in device layer of the power supply.  
poster icon Poster THPHA148 [2.443 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THPHA148  
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THPHA197 A Sub-Pixel Automated Feature-Based Alignment for Tomography Experiments ion, alignment, detector, experiment 1911
 
  • G.J.Q. Vasconcelos, G.S.R. Costa, E.X. Miqueles
    LNLS, Campinas, Brazil
 
  Funding: Brazilian Synchrotron Light Laboratory (LNLS); Brazilian Center for Research in Energy and Materials (CNPEM)
Three-dimensional image reconstruction in X-ray computed tomography (XRCT) is a mathematical process that entirely depends on the alignment of the object of study. Small variations in pitch and roll angles and translational shift between center of rotation and center of detector can cause large deviations in the captured sinogram, resulting in a degraded 3D image. Most of the popular reconstruction algorithms are based on previous adjustments of the sinogram ray offset before the reconstruction process. This work presents an automatic method for shift and angle adjust of the center of rotation (COR) before the beginning of the experiment removing the need of setting geometrical parameters to achieve a reliable reconstruction. This method correlates different projections using Scale Invariant Feature Transform algorithm (SIFT) to align the experimental setup with sub-pixel precision and fast convergence.
 
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DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THPHA197  
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THPHA201 Customization of MXCuBE 2 (Qt4) Using EPICS for a Brazilian Synchrotron Beamline ion, controls, EPICS, interface 1923
 
  • D.B. Beniz
    LNLS, Campinas, Brazil
 
  After studying some alternatives for macromolecular crystallography beamlines experiment control and had considered the effort to create an in-house made solution, LNLS decided to adopt MXCuBE*. Such decision was made considering main technologies used to develop it, based on Python, which is being largely used in our laboratory, its basic support to EPICS (Experimental Physics and Industrial Control System), the control system adopted for the LNLS beamlines, and because of its stability. Then, existing MXCuBE implementation has been adapted to meet LNLS requirements, considering that previously it was mainly ready to control systems other than EPICS. Using basic MXCuBE engines, new classes were created on devices abstraction layer, which communicates to EPICS IOCs (Input/Output Controllers), like AreaDetectors, MotorRecords among others. Py4Syn** was employed at this abstraction layer, as well. New GUI components were developed and some enhancements were implemented. Now, MXCuBE has been used on LNLS MX2 beamline since the end of 2016 with positive feedback from researchers. The adoption of MXCube proved to be right, given its flexibility, performance and the obtained results.
* Gabadinho, J. et al., 2010, "MxCuBE: (…)". J. of S. Radiation, V. 17, pp. 700-707;
** Slepicka, H. et al., 2015. "Py4Syn: (…)". J. of S. Radiation, V. 22, pp. 1182-1189.
 
poster icon Poster THPHA201 [2.144 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THPHA201  
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