Author: Kostin, R.A.
Paper Title Page
MOPOJO15 Low Energy Linac for Electronic Brachytherapy 59
 
  • C.-J. Jing, P.V. Avrakhov, J.R. Callahan, B.T. Freemire, E. Gomez, R.A. Kostin, A. Liu, S. Miller, W. Si, Y. Zhao
    Euclid TechLabs, Solon, Ohio, USA
  • D.S. Doran, W. Liu, J.G. Power
    ANL, Lemont, Illinois, USA
  • C.G. Liu, M. Pankuch
    Northwestern University, Northwestern Medicine Proton Center, Warrenville, Illinois, USA
  • D. Mihalcea, P. Piot
    Northern Illinois University, DeKalb, Illinois, USA
  • W.D. Rush
    KU, Lawrence, Kansas, USA
  • J.S. Welsh
    Edward Hines Junior VA Hospital, Hines, Illinois, USA
  
  Funding: The project is supported by NNSA under Contract 89233121CNA000209.
The use of electronic brachytherapy (EB) has grown rapidly over the past decade. It is gaining significant interest from the global medical community as an improved user-friendly technology to reduce the usage of Ir-192. However, the present EB machines all use electron beams at energies of 100 kV or less to generate the X-ray photons, which limits their use to low dose-rate brachytherapy. We focus on the development of a compact and light weight 1-MeV linac to generate and deliver >250 kV X-ray photons to the patient. The device is intended to retrofit to existing brachytherapy applicators. In this paper we will report progress on this project. 		 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-MOPOJO15  
About • Received ※ 20 August 2022 — Revised ※ 26 August 2022 — Accepted ※ 31 August 2022 — Issue date ※ 09 September 2022
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THPOJO16 High Efficiency Traveling Wave Linac With Tunable Energy 727
 
  • V.A. Dolgashev, A.K. Krasnykh, A. Romero
    SLAC, Menlo Park, California, USA
  • P. Borchard
    Dymenso LLC, San Francisco, USA
  • R.A. Kostin, S.V. Kuzikov
    Euclid TechLabs, Solon, Ohio, USA
  
  Funding: US DOE Research Opportunities in Accelerator Stewardship DE-FOA-0002463
We will present a physics design of a compact, highly efficient, energy-tunable linac to generate up to 500 W of 10 MeV electron beam power for medical and security applications. This linac will employ a patented travelling wave accelerating structure with outside power flow which combines the advantages of high efficiency with energy tunability of traveling wave cavities. Unlike standing wave structures, the proposed structure has little power reflected back to the RF source, eliminating the need for a heavy, lossy waveguide isolator. In contrast to the side-coupled cavity designs, the proposed structure is symmetrical and therefore it does not have deflecting axial fields that impair the beam transport. The high shunt impedance will allow the linac to achieve an output energy of up to 10 MeV when powered by a compact commercial 9.3 GHz 1.7 MW magnetron. For pulse-to-pulse tuning of the beam output energy we will change of the beam-loaded gradient by varying the triode gun current. 		 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-THPOJO16  
About • Received ※ 30 August 2022 — Revised ※ 01 September 2022 — Accepted ※ 07 September 2022 — Issue date ※ 16 September 2022
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