Author: Berg, W.
Paper Title Page
MOPP048 Development of the Linac Extension Area 450-MeV Electron Test Beam Line at the Advanced Photon Source* 220
 
  • W. Berg, J.C. Dooling, S.H. Lee, Y. Sun, A. Zholents
    ANL, Lemont, Illinois, USA
 
  Funding: *Work supported by the U.S. Department of Energy, Office of Science, under Contract No. DE-ACO2O6CH11357.
A low-emittance electron beam line for accelerator-based R&D hardware experimentation and study of novel accelerator techniques is under development at the injection linac of the Advanced Photon Source (APS). The Linac Extension Area (LEA) beam line will operate at the full 400 MeV energy of the APS linac. The electron beam is generated from a photo-cathode (PC) electron gun delivering 300 pC of charge with a 3 ps, rms bunch length and normalized beam emittance of ~ 1 micron. The bunch length can be compressed to 150 fs in a flexible chicane at a beam energy of 150 MeV. The APS linac contains an extensive set of conventional and advanced beam diagnostics including a recently commissioned s-band transverse deflecting cavity. The low-emittance electron beam is transported to an independent experimental tunnel enclosure that contains the LEA beam line. Implementing the LEA beam line separate from the APS injector complex allows for on-demand access to the area to perform work without interrupting beam operations of the APS. We discuss the overall scheme of the existing linac beam delivery & diagnostic systems, and report the design of the LEA beam line and initial planned experiments.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2019-MOPP048  
About • paper received ※ 05 September 2019       paper accepted ※ 09 September 2019       issue date ※ 10 November 2019  
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TUPP039 Horizontal and Vertical Emittance Measurements of the Advanced Photon Source Booster Synchrotron Beam at High Charge 415
 
  • K.P. Wootton, W. Berg, J.R. Calvey, K.C. Harkay, A.H. Lumpkin, A. Xiao, B.X. Yang, C. Yao
    ANL, Lemont, Illinois, USA
 
  Funding: This research used resources of the Advanced Photon Source, operated for the U.S. Department of Energy Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357.
In order to maximise the injection efficiency from the booster synchrotron into the proposed Advanced Photon Source Upgrade storage ring, beam-based optimisation of the booster electron optical lattice is anticipated. In the present work, we present non-destructive beam size and emittance measurements using the booster synchrotron light monitor and destructive quadrupole scan emittance measurements in the booster to storage ring transport line. Destructive measurements are performed with a 0.1 mm thickness Cerium-doped Yttrium Aluminium Garnet screen. In order to characterise performance, both the beam energy at extraction (5, 6 and 7 GeV) and the bunch charge are varied.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2019-TUPP039  
About • paper received ※ 04 September 2019       paper accepted ※ 08 September 2019       issue date ※ 10 November 2019  
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TUPP040 Digital Cameras for Photon Diagnostics at the Advanced Photon Source 420
 
  • K.P. Wootton, N.D. Arnold, W. Berg, T. Fors, N. Sereno, H. Shang, G. Shen, S.E. Shoaf, B.X. Yang
    ANL, Lemont, Illinois, USA
 
  Funding: This research used resources of the Advanced Photon Source, operated for the U.S. Department of Energy Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357.
Cameras can be a very useful accelerator diagnostic, particularly because an image of the beam distribution can be quickly interpreted by human operators, and increasingly can serve as an input to machine learning algorithms. We present an implementation of digital cameras for triggered photon diagnostics at the Advanced Photon Source using the areaDetector framework in the Experimental Physics and Industrial Controls System. Beam size measurements from the synchrotron light monitors in the Particle Accumulator Ring using the new architecture are presented.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2019-TUPP040  
About • paper received ※ 04 September 2019       paper accepted ※ 08 September 2019       issue date ※ 10 November 2019  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)