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DOI:10.18429/JACoW-HIAT2015-WEPB05
Title Pushing the Intensity Envelope at the ATLAS Linac
Authors
  • B. Mustapha, C. Dickerson, M.R. Hendricks, P.N. Ostroumov, R.C. Pardo, R.H. Scott, G.P. Zinkann
    ANL, Argonne, USA
Abstract The ATLAS linac at Argonne National Laboratory has recently been upgraded for higher beam intensity and transport efficiency. Following the installation of the new RFQ, we have performed a high-intensity run using a 40Ar⁸⁺ beam. A beam current of 7 pμA was successfully injected and accelerated in the RFQ and the first superconducting section of the linac to an energy of 1.5 MeV/u. Since then, a new superconducting module was installed in the Booster section of the linac replacing three old cryomodules of split-ring resonators. The split-rings are known to cause excessive beam steering leading to beam loss which limits the maximum current in ATLAS. We are planning a second run to try to push the beam current higher and farther into the linac. The ultimate goal is to accelerate 10 pμA to the Booster exit at 5 MeV/u. Among the limitations encountered in the first run are the large beam emittance at the ECR source and the beam loss in the LEBT. The results of these attempts will be presented and discussed.
Funding This work was supported by the U.S. Department of Energy under Contract No. DE-AC02-06CH11357. This research used resources of ANL's ATLAS facility, which is a DOE Office of Science User Facility.
Paper download WEPB05.PDF [0.616 MB / 3 pages]
Conference HIAT2015, Yokohama, Japan
Proceedings Link to full HIAT2015 Proccedings
Session Wednesday Poster Session (B)
Date 09-Sep-15   16:00–18:00
Main Classification Room Temperature and Superconducting Linacs
Keywords linac, rfq, ion, cryomodule, booster
Publisher JACoW, Geneva, Switzerland
Editors Osamu Kamigaito (RIKEN, Wako, Japan); Schaa, Volker R.W. (GSI, Darmstadt, Germany); Kazunari Yamada (RIKEN, Wako, Japan)
ISBN 978-3-95450-131-1
Published February 2016
Series Heavy Ion Accelerator Technology Conference (13th)
Copyright
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cc Creative Commons Attribution 3.0