Keyword: storage-ring
Paper Title Other Keywords Page
MO3AO01 Optimisation of the Touschek Lifetime in Synchrotron Light Sources Using Badger sextupole, injection, operation, quadrupole 108
 
  • S.M. Liuzzo, N. Carmignani, L.R. Carver, L. Hoummi, D. Lacoste, A. Le Meillour, T.P. Perron, S.M. White
    ESRF, Grenoble, France
  • I.V. Agapov, M. Böse, J. Keil, L. Malina, E.S.H. Musa, B. Veglia
    DESY, Hamburg, Germany
  • A.L. Edelen, P. Raimondi, R.J. Roussel, Z. Zhang
    SLAC, Menlo Park, California, USA
  • T. Hellert
    LBNL, Berkeley, California, USA
 
  Funding: This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 871072
Badger* is a software designed to easily access several optimizers (simplex, RCDS**, bayesian optimization, etc.) to solve a given multidimensional minimization/maximization task. The Badger software is very flexible and easy to adapt to different facilities. In the framework of the EURIZON European project Badger was used for the EBS and PETRAIII storage rings interfacing with the Tango and TINE control system. Among other tests, the optimisations of Touschek lifetime was performed and compared with the results obtained with existing tools during machine dedicated times.
* Z. Zhang et al., "Badger: The Missing Optimizer in ACR", doi:10.18429/JACoW-IPAC2022-TUPOST058
** X. Huang, "Robust simplex algorithm for online optimization", 10.1103/PhysRevAccelBeams.21.104601
 
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS2023-MO3AO01  
About • Received ※ 28 September 2023 — Revised ※ 08 October 2023 — Accepted ※ 13 October 2023 — Issued ※ 27 October 2023
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MO3AO02 Implementation of Model Predictive Control for Slow Orbit Feedback Control in MAX IV Accelerators Using PyTango Framework controls, feedback, TANGO, operation 116
 
  • C. Takahashi, J. Breunlin, A. Freitas, M. Sjöström
    MAX IV Laboratory, Lund University, Lund, Sweden
  • P. Giselsson, E. Jensen Gassheld, M. Karlsson
    Lund University, Lund, Sweden
 
  Achieving low emittance and high brightness in modern light sources requires stable beams, which are commonly achieved through feedback solutions. The MAX IV light source has two feedback systems, Fast Orbit Feedback (FOFB) and Slow Orbit Feedback (SOFB), operating in overlapping frequency regions. Currently in MAX IV, a general feedback device implemented in PyTango is used for slow orbit and trajectory correction, but an MPC controller for the beam orbit has been proposed to improve system robustness. The controller uses iterative optimisation of the system model, current measurements, dynamic states and system constraints to calculate changes in the controlled variables. The new device implements the MPC model according to the beam orbit response matrix, subscribes to change events on all beam position attributes and updates the control signal given to the slow magnets with a 10 Hz rate. This project aims to improve system robustness and reduce actuator saturation. The use of PyTango simplifies the implementation of the MPC controller by allowing access to high-level optimisation and control packages. This project will contribute to the development of a high-quality feedback control system for MAX IV accelerators.  
slides icon Slides MO3AO02 [4.234 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS2023-MO3AO02  
About • Received ※ 05 October 2023 — Revised ※ 09 October 2023 — Accepted ※ 14 November 2023 — Issued ※ 19 December 2023
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TUPDP019 Operation of the ESR Storage Ring with the LSA Control System accumulation, experiment, operation, injection 534
 
  • S.A. Litvinov, R. Hess, B. Lorentz, M. Steck
    GSI, Darmstadt, Germany
 
  The LHC Software Architecture (LSA) has been applied to the accelerator complex GSI, Germany as a new control system. The Experimental Storage Ring (ESR) was recommissioned with the LSA and different accelerator and physics experiments were performed in the last several years. The overview of the ESR performance will be presented here. The features and challenges of the operation with LSA system will be outlined as well.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS2023-TUPDP019  
About • Received ※ 06 October 2023 — Revised ※ 29 November 2023 — Accepted ※ 20 December 2023 — Issued ※ 20 December 2023
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TUPDP020 Summary Report on Machine Learning-Based Applications at the Synchrotron Light Source Delta injection, laser, controls, synchrotron 537
 
  • D. Schirmer, S. Khan, A. Radha Krishnan
    DELTA, Dortmund, Germany
 
  In recent years, several control system applications using machine learning (ML) techniques have been developed and tested to automate the control and optimization of the 1.5 GeV synchrotron radiation source DELTA. These applications cover a wide range of tasks, including electron beam position correction, working point control, chromaticity adjustment, injection process optimization, as well as CHG-spectra (coherent harmonic generation) analysis. Various machine learning techniques have been used to implement these projects. This report provides an overview of these projects, summarizes the current results, and indicates ideas for future improvements.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS2023-TUPDP020  
About • Received ※ 04 October 2023 — Accepted ※ 06 December 2023 — Issued ※ 13 December 2023  
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TUPDP030 Integration of an Optimizer Framework into the Control System at KARA controls, injection, interface, framework 570
 
  • C. Xu, E. Blomley, A.-S. Müller, A. Santamaria Garcia
    KIT, Karlsruhe, Germany
  • M. Zhang
    PU, Princeton, New Jersey, USA
 
  Tuning particle accelerators is not straightforward, as they depend on a large number of non-linearly correlated parameters that, for example, drift over time. In recent years advanced numerical optimization tools have been developed to assist human operators in tuning tasks. A proper interface between the optimizers and the control system will encourage their daily use by the accelerator operators. In this contribution, we present our latest progress in integrating an optimizer framework into the control system of the KARA storage ring at KIT, allowing the automatic tuning methods to be applied for routine tasks.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS2023-TUPDP030  
About • Received ※ 06 October 2023 — Accepted ※ 04 December 2023 — Issued ※ 10 December 2023  
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THPDP001 New Generation Qt Control Components for Hi Level Software controls, EPICS, framework, TANGO 1291
 
  • G. Strangolino, G. Gaio, R. Passuello
    Elettra-Sincrotrone Trieste S.C.p.A., Basovizza, Italy
 
  A new generation of Qt graphical components, namely cumbia-qtcontrols-ng is under development at ELETTRA. A common engine allows each component to be rendered on traditional QWidgets and scalable QGraphicsItems alike. The latter technology makes it possible to integrate live controls with static SVG in order to realize any kind of synoptic with touch and scaling capabilities. A pluggable zoomer can be installed on any widget or graphics item. Apply numeric controls, Cartesian and Circular (Radar) plots are the first components realized.  
poster icon Poster THPDP001 [0.935 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS2023-THPDP001  
About • Received ※ 29 September 2023 — Revised ※ 14 November 2023 — Accepted ※ 20 December 2023 — Issued ※ 20 December 2023
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THPDP010 Update on the EBS Storage Ring Beam Dynamics Digital Twin controls, optics, TANGO, SRF 1306
 
  • S.M. Liuzzo, N. Carmignani, L.R. Carver, L. Hoummi, N. Leclercq, T.P. Perron, J.L. Pons, S.M. White
    ESRF, Grenoble, France
 
  The EBS storage ring control system is presently paired with an electron beam dynamics digital twin (the EBS control system simulator, EBSS*). The EBSS reproduces many of the beam dynamics related quantities relevant for machine operation. This digital twin is used for the preparation and debug of software to deploy for operation. The EBSS is presently working only for the main storage ring and it is not directly connected to the machine operation but works in parallel and on demand. We present here the steps taken towards an on-line continuous use of the EBSS to monitor the evolution of not directly observable parameters such as beam optics.
* Simone Liuzzo, et al. The ESRF-EBS Simulator: A Commissioning Booster. 18th ICALEPCS, Oct 2021, Shanghai, China. MOPV012
 
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS2023-THPDP010  
About • Received ※ 27 September 2023 — Revised ※ 25 October 2023 — Accepted ※ 10 December 2023 — Issued ※ 16 December 2023
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THPDP016 Full Stack Performance Optimizations for FAIR Operation controls, operation, timing, hardware 1325
 
  • A. Schaller, H.C. Hüther, R. Mueller, A. Walter
    GSI, Darmstadt, Germany
 
  In the last beam times, operations reported a lack of performance and long waiting times when performing simple changes of the machines’ settings. To ensure performant operation of the future Facility for Antiproton and Ion Research (FAIR), the "Task Force Performance" (TFP) was formed in mid-2020, which aimed at optimizing all involved Control System components. Baseline measurements were recorded for different scenarios to compare and evaluate the steps taken by the TFP. These measurements contained data from all underlying systems, from hardware device data supply over network traffic up to user interface applications. Individual groups searched, detected and fixed performance bottlenecks in their components of the Control System stack, and the interfaces between these individual components were inspected as well. The findings are presented here.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS2023-THPDP016  
About • Received ※ 04 October 2023 — Revised ※ 29 November 2023 — Accepted ※ 13 December 2023 — Issued ※ 20 December 2023
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FR1BCO04 The Controls and Science IT Project for the SLS 2.0 Upgrade controls, network, EPICS, experiment 1616
 
  • A. Ashton, H.-H. Braun, S. Fries, X. Yao, E. Zimoch
    PSI, Villigen PSI, Switzerland
 
  Operation of the Swiss Light Source (SLS) at the Paul Scherrer Institue (PSI) in Switzerland began in 2000 and it quickly became one of the most successful synchrotron radiation facilities worldwide, providing academic and industry users with a suite of excellent beamlines covering a wide range of methods and applications. To maintain the SLS at the forefront of synchrotron user facilities and to exploit all of the improvement opportunities, PSI prepared a major upgrade project for SLS, named SLS 2.0. The Controls and Science IT (CaSIT) subproject was established to help instigate a project management structure to facilitate new concepts, increased communication, and clarify budgetary responsibility. This article focusses on the progress being made to exploit the current technological opportunities offered by a break in operations whilst taking into consideration future growth opportunities and realistic operational support within an academic research facility.  
slides icon Slides FR1BCO04 [6.389 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS2023-FR1BCO04  
About • Received ※ 05 October 2023 — Revised ※ 10 October 2023 — Accepted ※ 20 November 2023 — Issued ※ 17 December 2023
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FR2AO05 Python Library for Simulated Commissioning of Storage-Ring Accelerators MMI, lattice, simulation, closed-orbit 1637
 
  • L. Malina, I.V. Agapov, J. Keil, E.S.H. Musa, B. Veglia
    DESY, Hamburg, Germany
  • N. Carmignani, L.R. Carver, L. Hoummi, S.M. Liuzzo, T.P. Perron, S.M. White
    ESRF, Grenoble, France
  • T. Hellert
    LBNL, Berkeley, California, USA
 
  Simulations of the commissioning procedure became vital to the storage-ring lattice design process. The achievable tolerances on lattice imperfections, such as equipment misalignments or magnet gradient errors, would, without correction, prohibit reaching the design parameters. We present a Python library which includes an extensive set of error sources in the accelerator lattice and provides a variety of correction algorithms to commission a storage ring. The underlying beam dynamics simulations are performed with pyAT. This project builds upon previous works and expands them in the direction of realistic control room experience and software maintainability. The performance is demonstrated using example commissioning studies, and further development plans are discussed.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS2023-FR2AO05  
About • Received ※ 06 October 2023 — Revised ※ 27 October 2023 — Accepted ※ 05 December 2023 — Issued ※ 19 December 2023
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