Author: Smirnov, A.Yu.
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MOPOPA21 RF Beam Sweeper for Purifying In-Flight Produced Rare Isotope Beams at ATLAS Facility 122
 
  • S.V. Kutsaev, R.B. Agustsson, A.C. Araujo Martinez, J. Peña González, A.Yu. Smirnov
    RadiaBeam, Santa Monica, California, USA
  • B. Mustapha
    ANL, Lemont, Illinois, USA
 
  Funding: This work was supported by the U.S. Department of Energy, Office of Nuclear Physics, under SBIR grant DE-SC0019719.
RadiaBeam is developing an RF beam sweeper for puri-fying in-flight produced rare isotope beams at the ATLAS facility of Argonne National Laboratory. The device will operate in two frequency regimes ’ 6 MHz and 12 MHz ’ each providing a 150 kV deflecting voltage, which dou-bles the capabilities of the existing ATLAS sweeper. In this paper, we present the design of a high-voltage RF sweeper and discuss the electromagnetic, beam dynamics, and solid-state power source for this device.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-MOPOPA21  
About • Received ※ 14 August 2022 — Revised ※ 19 August 2022 — Accepted ※ 29 August 2022 — Issue date ※ 01 September 2022
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MOPOPA22 High-Gradient Accelerating Structure for Hadron Therapy Linac, Operating at kHz Repetition Rates 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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MOPORI08 Beam Mapping Linearity Improvement in Multi-Dimensional Bunch Shape Monitor 239
 
  • S.V. Kutsaev, R.B. Agustsson, A.C. Araujo Martinez, A. Moro, A.Yu. Smirnov, K.V. Taletski
    RadiaBeam, Santa Monica, California, USA
  • A.V. Aleksandrov, A.A. Menshov
    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 a Bunch Shape Monitor (BSM) with improved performance that incorporates three major innovations. First, the collection efficiency is im-proved by adding a focusing field between the wire and the entrance slit. Second, a new design of an RF deflector improves beam linearity. 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 pre-sent the design of the BSM and its sub-systems.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-MOPORI08  
About • Received ※ 24 August 2022 — Revised ※ 01 September 2022 — Accepted ※ 02 September 2022 — Issue date ※ 09 September 2022
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MOPORI09 Linear Accelerator for Demonstration of X-Ray Radiotherapy with Flash Effect 243
MOOPA01   use link to see paper's listing under its alternate paper code  
 
  • S.V. Kutsaev, R.B. Agustsson, S. Boucher, K. Kaneta, A.Yu. Smirnov, V.S. Yu
    RadiaBeam, Santa Monica, California, USA
  • A.R. Li, K. Sheng
    UCLA, Los Angeles, California, USA
 
  Funding: This project is funded by NIH, award number NIH R01CA255432.
Emerging evidence indicates that the therapeutic window of radiotherapy can be significantly increased using ultra-high dose rate dose delivery (FLASH), by which the normal tissue injury is reduced without compromising tumor cell killing. The dose rate required for FLASH is 40 Gy/s or higher, 2-3 orders of magnitude greater than conventional radiotherapy. Among the major technical challenges in achieving the FLASH dose rate with X-rays is a linear accelerator that is capable of producing such a high dose rate. We will discuss the design of a high dose rate 18 MeV linac capable of delivering 100 Gy/s of collimated X-rays at 20 cm. This linac is being developed by a RadiaBeam/UCLA collaboration for a preclinical system as a demonstration of the FLASH effect in small animals.
 
slides icon Slides MOPORI09 [0.954 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-MOPORI09  
About • Received ※ 19 August 2022 — Revised ※ 22 August 2022 — Accepted ※ 29 August 2022 — Issue date ※ 02 September 2022
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THPOPA22 C-Band Low Level RF System Using COTS Components 789
 
  • J.P. Edelen
    RadiaSoft LLC, Boulder, Colorado, USA
  • R.D. Berry, A. Diego, D.I. Gavryushkin, A.Yu. Smirnov
    RadiaBeam, Santa Monica, California, USA
  • J. Krasna
    COSYLAB, Control System Laboratory, Ljubljana, Slovenia
 
  Low Level RF systems have historically fallen into two categories. Custom systems developed at national laboratories or industrial systems using custom hardware specifically designed for LLRF. Recently however advances in RF technology accompanied by demand from applications like quantum computing have led to commercially available systems that are viable for building a modular low-level RF system. Here we present an overview of a Keysight based digital LLRF system. Our system employs analog upconversion and downconversion with an intermediate frequency of 100MHz. We discuss our phase-reference system and provide initial results on the system performance.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-THPOPA22  
About • Received ※ 25 August 2022 — Revised ※ 01 September 2022 — Accepted ※ 02 September 2022 — Issue date ※ 03 September 2022
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