Keyword: insertion-device
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MOPAB085 Design and Fabrication of a Short Multipole Wiggler and the Front End for the New ALBA Beamline FAXTOR photon, wiggler, vacuum, insertion 321
 
  • J. Campmany, J. Marcos, V. Massana
    ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain
 
  FAXTOR is a new hard XR tomography beam line that is being built at ALBA in order to fulfil the needs that cannot be currently covered by the MISTRAL VUV and soft XR beamline. This beam line needs a small source size as well higher than 1012 Photons per second through an aperture of 4x1 mm2 in the whole range 5 to 60 keV, for a current of 250 mA in Storage Ring with source size maintained below 310 µm horizontal and 25 µm vertical. The contract was awarded to AVS-US Company. In this paper we present the design finally selected as well as the preliminary design carried out by manufacturer to implement the conceptual model designed by ALBA.  
poster icon Poster MOPAB085 [1.879 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-MOPAB085  
About • paper received ※ 11 May 2021       paper accepted ※ 20 May 2021       issue date ※ 31 August 2021  
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TUPAB051 Elettra and Elettra 2.0 emittance, insertion, status, coupling 1474
 
  • E. Karantzoulis, A. Carniel, D. Castronovo, S. Di Mitri, B. Diviacco, S. Krecic
    Elettra-Sincrotrone Trieste S.C.p.A., Basovizza, Italy
 
  The status of the Italian 2.4/2.0 GeV third generation light source Elettra is presented together with the future upgrade concerning the new ultra-low emittance light source Elettra 2.0 that will provide ultra-high brilliance while the very short pulses feasibility study for time resolved experiments is in progress.  
poster icon Poster TUPAB051 [1.632 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-TUPAB051  
About • paper received ※ 10 May 2021       paper accepted ※ 27 May 2021       issue date ※ 20 August 2021  
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WEPAB127 Accurate Measurements of Undulator Particle Beam Entrance/Exit Angles Using Improved Hall Probes and Calibration Process undulator, photon, insertion, closed-orbit 2907
 
  • I. Vasserman, R.J. Dejus, Y. Piao, M.F. Qian, J.Z. Xu
    ANL, Lemont, Illinois, USA
 
  Funding: Work supported by U.S. Department of Energy, Office of Science, under contract number DE-AC02-06CH11357.
The Advanced Photon Source Upgrade (APS-U) undulator requirements were changed from the first and second field integrals to the entrance and exit angles of the particle beam. This provides the user with the best radiation view angle by the storage ring closed orbit correction system. To satisfy such requirements we use improved Senis Hall probes and calibration process. In addition to the normal NMR calibration of the sensors, the calibration was further refined using stretch-coil integrals to make accurate measurements.
 
poster icon Poster WEPAB127 [0.620 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB127  
About • paper received ※ 15 May 2021       paper accepted ※ 09 June 2021       issue date ※ 19 August 2021  
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THPAB037 Insertion Devices Impact on Solaris Storage Ring Optics undulator, insertion, power-supply, storage-ring 3827
 
  • G.W. Kowalski, R. Panaś, A.I. Wawrzyniak
    NSRC SOLARIS, Kraków, Poland
 
  Solaris storage ring is currently operating with three insertion devices. The IDs installed are the APPLE II type elliptically polarised undulators (EPU). The UARPES beamline is operating with the long period length EPU of 120 mm (EPU120) which has a significant impact on the linear optics and tune shift. The linear optics compensation of the EPU120 impact is realised by local adjustment of SQFO quadrupole/sextupole focusing gradient and defocusing gradient in the flanking dipoles. Two additional EPUs with period lengths of 58 and 46.6 mm are recently installed for next beamlines PHELIX and DEMETER, respectively and are under commissioning now. To reduce the impact of all undulators movement the additional correction coils are installed and the correction feedforward tables has been determined experimentally. Additionally to keep the tune at the nominal values the tune feedback is planned to be implemented. Within this presentation the effect of all existing insertion devices on the linear optics based on measurements and simulations to be discussed. Moreover the nonlinear effects, especially the impact on dynamic aperture of Solaris storage ring will be investigated.  
poster icon Poster THPAB037 [2.522 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB037  
About • paper received ※ 18 May 2021       paper accepted ※ 14 July 2021       issue date ※ 30 August 2021  
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THPAB047 Status of Magnetic Measurement Benches for Insertion Device Characterization at MAX IV Laboratory undulator, insertion, quadrupole, MMI 3848
 
  • M. Ebbeni, M. Gehlot, M. Holz, H. Tarawneh
    MAX IV Laboratory, Lund University, Lund, Sweden
 
  Insertion Devices (IDs) are the sole source of radiation used in all beamlines in MAX IV Laboratory with 14 IDs in operation of which 6 were built in-house. This paper shows the current capabilities and performance of the of the ID magnetic measurement systems, and the ongoing development work.  
poster icon Poster THPAB047 [1.185 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB047  
About • paper received ※ 11 May 2021       paper accepted ※ 27 July 2021       issue date ※ 28 August 2021  
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THPAB054 Measurement Results of the First Scape Prototype undulator, photon, insertion, superconducting-magnet 3872
 
  • M. Kasa, E.A. Anliker, Q.B. Hasse, Y. Ivanyushenkov, I. Kesgin, Y. Shiroyanagi, E. Trakhtenberg
    ANL, Lemont, Illinois, USA
 
  Funding: Work supported by the U.S. Department of Energy, Office of Science, under Contract No. DE-AC02-06CH11357.
The SCAPE (SuperConducting Arbitrarily Polarizing Emitter) undulator is under development at the Advanced Photon Source (APS) as a part of the APS upgrade. SCAPE is comprised of four superconducting magnets which are arranged to create an on-axis undulator field that can be planar, elliptical, or circular. As a first step towards developing a full length device, a 0.5-meter long prototype was manufactured and assembled for testing in a liquid helium bath cryostat. A description of the mechanical assembly and subsequent measurement results of the first prototype will be presented in this paper.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB054  
About • paper received ※ 19 May 2021       paper accepted ※ 01 September 2021       issue date ※ 22 August 2021  
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THPAB198 Commissioning of Current Strips for Elliptically Polarizing Undulators at NSLS-II MMI, undulator, insertion, synchrotron 4160
 
  • Y. Hidaka, O.V. Chubar, T. Tanabe
    BNL, Upton, New York, USA
  • C.A. Kitégi
    SOLEIL, Gif-sur-Yvette, France
 
  Funding: This work is supported by U.S. DOE under Contract No. DE-SC0012704.
Most of the Elliptically Polarizing Undulators (EPUs) at NSLS-II are equipped with current strips (or flat wires), attached to their vacuum chambers. These strips compensate the dynamic field integrals of the EPU to minimize undesirable nonlinear beam dynamics effect that can lead to reduction in injection efficiency and beam lifetime. For each EPU, we measured the field integrals of the insertion device alone, the current strips alone, and both, while creating horizontal bumps of different amplitudes at the straight section to assess the effectiveness of the compensation provided by the design current values for the strips. The commissioning results of these current strips are reported in this article.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB198  
About • paper received ※ 19 May 2021       paper accepted ※ 23 June 2021       issue date ※ 28 August 2021  
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THPAB309 New Working Tune Feedback System for TLS feedback, quadrupole, insertion, radiation 4394
 
  • S.J. Huang, Y.K. Lin, Y.C. Lin
    NSRRC, Hsinchu, Taiwan
 
  TLS storage ring has two sets of working tuning feedback systems: one is used to correct the working tune deviation caused by insertion device U90; another system uses a local trim coil to correct the working tune deviation caused by all insertion devices. This article describes a new working tune feedback system in TLS that can correct the working tune effectively back to the required conditions for operation; the two existing feedback systems do not cause problems. We can both avoid increasing the local radiation dose and decreasing the injection efficiency.  
poster icon Poster THPAB309 [0.831 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB309  
About • paper received ※ 15 May 2021       paper accepted ※ 02 July 2021       issue date ※ 23 August 2021  
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