Keyword: hadron
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MO2AA04 Electron Ion Collider Strong Hadron Cooling Injector and ERL electron, cavity, linac, emittance 7
 
  • E. Wang, W.F. Bergan, F.J. Willeke
    BNL, Upton, New York, USA
  • S.V. Benson, K.E. Deitrick
    JLab, Newport News, Virginia, USA
  • D. Douglas
    Douglas Consulting, York, Virginia, USA
  • C.M. Gulliford
    Cornell University (CLASSE), Cornell Laboratory for Accelerator-Based Sciences and Education, Ithaca, New York, USA
  • C.E. Mayes, N.W. Taylor
    Xelera Research LLC, Ithaca, New York, USA
  • J. Qiang
    LBNL, Berkeley, California, USA
 
  Funding: The work is supported by Brookhaven Science Associates, LLC under Contract No. DESC0012704 with the U.S. Department of Energy.
Intra-beam Scattering (IBS) and other diffusion mechanisms in the EIC Hadron Storage Ring (HSR) degrade the beam emittances during a store, with growth times of about 2 hours at the nominal proton energies of 275GeV, 100 GeV, and 41 GeV. Strong Hadron Cooling (SHC) can maintain good hadron beam quality and high luminosity during long collision stores. A novel cooling method ’ Coherent electron Cooling (CeC) ’ is chosen as the baseline SHC method, due to its high cooling rates. An Energy Recovery Linac (ERL) is used to deliver an intense high-quality electron beam for cooling. In this paper, we discuss the beam requirements for SHC-CeC and describe the current status of the injector and ERL designs. Two designs of injector and ERL will be presented: one for dedicated SHC and another one for SHC with precooler.
 
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DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-MO2AA04  
About • Received ※ 23 August 2022 — Revised ※ 25 August 2022 — Accepted ※ 27 August 2022 — Issue date ※ 31 August 2022
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MOPOPA22 High-Gradient Accelerating Structure for Hadron Therapy Linac, Operating at kHz Repetition Rates linac, GUI, klystron, operation 126
 
  • S.V. Kutsaev, R.B. Agustsson, A.C. Araujo Martinez, A.Yu. Smirnov, S.U. Thielk
    RadiaBeam, Santa Monica, California, USA
  • V.A. Dolgashev
    SLAC, Menlo Park, California, USA
  • B. Mustapha, G. Ye
    ANL, Lemont, Illinois, USA
 
  Funding: This work was supported by the U.S. Department of Energy, Office of High Energy Physics, under STTR grant DE-SC0015717 and Accelerator Stewardship Grant, Proposal No. 0000219678.
Argonne National Laboratory and RadiaBeam have designed the Advanced Compact Carbon Ion Linac (ACCIL) for the acceleration of carbon an proton beams up to the energies of 450 MeV/u, required for image-guided hadron therapy. Recently, this project has been enhanced with the capability of fast tumour tracking and treatment through the 4D spot scanning technique. Such solution offers a promising approach to simultaneously reduce the cost and improve the quality of the treatment. In this paper, we report the design of an accelerating structure, capable of operating up to 1000 pulses per second. The linac utilizes an RF pulse compressor for use with commercially available klystrons, which will dramatically reduce the price of the system.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-MOPOPA22  
About • Received ※ 13 August 2022 — Revised ※ 19 August 2022 — Accepted ※ 29 August 2022 — Issue date ※ 01 September 2022
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