Author: Kutsaev, S.V.
Paper Title Page
WEPA43 Self-Contained Linac Irradiator for the Sterile Insect Technique (SIT) 728
 
  • A. Diego, R.B. Agustsson, R.D. Berry, S. Boucher, O. Chimalpopoca, S.V. Kutsaev, A.Yu. Smirnov, V.S. Yu
    RadiaBeam, Santa Monica, California, USA
  • S.J. Coleman
    RadiaSoft LLC, Boulder, Colorado, USA
 
  Funding: This work was financed by the US department of energy SBIR grant no. DE- SC0020010.
A 3-MeV X-band linac has been developed employing a cost-effective split structure design in order to replace radioactive isotope irradiators currently used for the Sterile Insect Technique (SIT) and other applications. The penetration of a Co-60 irradiator can be matched with Bremsstrahlung produced by a 3-MeV electron beam. The use of electron accelerators eliminates security risks and hazards inherent with radioactive sources. We present the current state of this X-band split structure linac and the rest of the irradiator system.
 
DOI • reference for this paper ※ doi:10.18429/JACoW-NAPAC2022-WEPA43  
About • Received ※ 04 August 2022 — Revised ※ 06 August 2022 — Accepted ※ 12 August 2022 — Issue date ※ 16 September 2022
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WEPA48 Electromagnetic Design of a Compact RF Chopper for Heavy-Ion Beam Separation at FRIB 738
 
  • A.C. Araujo Martinez, R.B. Agustsson, Y.C. Chen, S.V. Kutsaev
    RadiaBeam, Santa Monica, California, USA
  • A.S. Plastun, X. Rao
    FRIB, East Lansing, Michigan, USA
 
  Funding: This work was supported by the U.S. Department of Energy, Office of High Energy Physics, under SBIR grant DE- SC0020671.
Rare isotope beams are produced at FRIB via fragmentation of a primary heavy ion beam in a thin target. The isotope beam of interest is contaminated with other fragments, which must be filtered out to ensure the delivery of rare isotopes with desired rates and purities. One of the stages of fragment separation uses an RF deflecting cavity to provide time-of-flight separation. However, to avoid neighboring bunches overlapping with each other and with the contaminants, it is necessary to increase the inter-bunch distance by a factor of four, corresponding to a 20.125 MHz rate. To solve this problem, we have developed an RF chopper system for the 500 keV/u primary heavy-ion beams. The system consists of a deflecting quarter wave resonator (QWR) cavity operating at 60.375 MHz, two dipole steering magnets, and a beam dump. In this paper, we present and discuss the optimization of the electromagnetic design of the QWR cavity and magnets, as well as some aspects, related to beam dynamics and conceptual engineering design.
 
DOI • reference for this paper ※ doi:10.18429/JACoW-NAPAC2022-WEPA48  
About • Received ※ 02 August 2022 — Revised ※ 05 August 2022 — Accepted ※ 06 August 2022 — Issue date ※ 08 September 2022
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THXD3
Improved Multi-Dimensional Bunch Shape Monitor  
 
  • S.V. Kutsaev, R.B. Agustsson, A.C. Araujo Martinez, A. Moro, K.V. Taletski
    RadiaBeam, Santa Monica, California, USA
  • A.V. Aleksandrov
    ORNL, Oak Ridge, Tennessee, USA
 
  Funding: This work was supported by the U.S. Department of Energy , Office of Basic Energy Sciences, under contract DE-SC0020590.
RadiaBeam is developing the Bunch Shape Monitor (BSM) with improved performance that incorporates three major innovations. First, the collection efficiency is improved by adding a focusing field between the wire and the entrance slit. Second, an improvement of the measurement speed is achieved by sampling longitudinal profiles of multiple energy slices simultaneously. Finally, the design is augmented with both a movable wire and a microwave deflecting cavity to add functionality and enable measuring the transverse profile as a wire scanner. In this paper we present the design of the BSM and its sub-systems as well as the initial test results of the new focusing system at SNS beamline.
 
slides icon Slides THXD3 [4.308 MB]  
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