Keyword: MMI
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WEBC3 MYRRHA-MINERVA Injector Status and Commissioning rfq, cavity, linac, LEBT 186
 
  • A. Gatera, J. Belmans, S. Boussa, F. Davin, W. De Cock, V.R.A. De florio, F. Doucet, L. Parez, F. Pompon, A. Ponton, D. Vandeplassche, E. Verhagen
    SCK•CEN, Mol, Belgium
  • Dr. Ben Abdillah, C. Joly, L. Perrot
    Université Paris-Saclay, CNRS/IN2P3, IJCLab, Orsay, France
  • F. Bouly, E. Froidefond, A. Plaçais
    LPSC, Grenoble Cedex, France
  • H. Podlech
    IAP, Frankfurt am Main, Germany
  • J. Tamura
    JAEA/J-PARC, Tokai-mura, Japan
  • C. Zhang
    GSI, Darmstadt, Germany
 
  The MYRRHA project at SCK•CEN, Belgium, aims at coupling a 600 MeV proton accelerator to a subcritical fission core operating at a thermal power of 60 MW. The nominal proton beam for this ADS has an intensity of 4 mA and is delivered in a quasi-CW mode. MYRRHA’s linac is designed to be fault tolerant thanks to redundancy implemented in parallel at low energy and serially in the superconducting linac. Phase 1 of the project, named MINERVA, will realise a 100 MeV, 4 mA superconducting linac with the mission of demonstrating the ADS requirements in terms of reliability and of fault tolerance. As part of the reliability optimisation program the integrated prototyping of the MINERVA injector is ongoing at SCK•CEN in Louvain-la-Neuve, Belgium. The injector test stand aims at testing sequentially all the elements composing the front-end of the injector. This contribution will highlight the beam dynamics choices in MINERVA’s injector and their impact on ongoing commissioning activities.
*angelique.gatera@sckcen.be
 
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slides icon Slides WEBC3 [3.128 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-HB2021-WEBC3  
About • Received ※ 14 October 2021 — Revised ※ 21 October 2021 — Accepted ※ 22 November 2021 — Issue date ※ 28 December 2021
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WEDC1 Study on the Injection Beam Commissioning and Painting Methods for CSNS/RCS injection, target, timing, simulation 191
 
  • M.Y. Huang, S. Wang, S.Y. Xu
    IHEP, Beijing, People’s Republic of China
 
  Funding: Work supported by National Natural Science Foundation of China (Project Nos. 12075134 and U1832210 )
In this paper, firstly, the beam commissioning of the injection system for CSNS/RCS will be studied, including: timing adjustment of the injection pulse powers, injection beam parameter matching, calibration of the injection painting bumps, measurement of the painting distribution, injection method adjustment, application of the main stripping foil, optimization of the injection beam loss and radiation dose, etc. Secondly, the painting methods for the CSNS/RCS will be studied, including: the fixed-point injection method, anti-correlated painting method and correlated painting method. The results of the beam commissioning will be compared with the simulation results. Combining with other precise optimizations, the beam power on the target has successfully reached the design value of 100kW and the stable operation of the accelerator has been achieved.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-HB2021-WEDC1  
About • Received ※ 10 October 2021 — Revised ※ 19 October 2021 — Accepted ※ 22 November 2021 — Issue date ※ 05 January 2022
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WEDC2 Acceleration of the High Current Deuteron Beam Through the IFMIF-EVEDA RFQ: Confirmation of the Design Beam Dynamics Performances rfq, emittance, simulation, proton 197
 
  • L. Bellan, L. Antoniazzi, M. Comunian, E. Fagotti, M.G. Giacchini, F. Grespan, M. Montis, A. Palmieri, A. Pisent, M. Poggi
    INFN/LNL, Legnaro (PD), Italy
  • T. Akagi, K. Kondo, K. Masuda, M. Sugimoto
    QST, Aomori, Japan
  • B. Bolzon, N. Chauvin
    CEA-IRFU, Gif-sur-Yvette, France
  • P. Cara, F. Scantamburlo
    IFMIF/EVEDA, Rokkasho, Japan
  • Y. Carin, H. Dzitko
    F4E, Germany
  • D. Jimenez-Rey, I. Podadera
    CIEMAT, Madrid, Spain
  • J. Marroncle
    CEA-DRF-IRFU, France
  • I. Moya
    Fusion for Energy, Garching, Germany
 
  The Linear IFMIF Prototype Accelerator (LIPAc) is a high intensity D+ linear accelerator; demonstrator of the International Fusion Material Irradiation Facility (IFMIF). In summer 2019 the IFMIF/EVEDA Radio Frequency Quadrupole (RFQ) accelerated its nominal 125 mA deuteron (D+) beam current up to 5 MeV, with >90% transmission for pulses of 1 ms at 1 Hz, reaching its nominal beam dynamics goal. The paper presents the benchmark simulations and measurements performed to characterize the as-built RFQ performances, in the low and high perveance regime. In this framework, the commissioning strategy with a particular focus on the reciprocal effects of the low-medium energy transfers lines and the RFQ is also discussed. In the last part of the paper, the future commissioning outlooks are briefly introduced.  
slides icon Slides WEDC2 [2.696 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-HB2021-WEDC2  
About • Received ※ 05 October 2021 — Revised ※ 20 October 2021 — Accepted ※ 22 November 2021 — Issue date ※ 27 January 2022
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WEDC3 Status of FRIB Commissioning linac, heavy-ion, ECR, ECRIS 203
 
  • P.N. Ostroumov, F. Casagrande, K. Fukushima, M. Ikegami, T. Kanemura, S.H. Kim, S.M. Lidia, G. Machicoane, T. Maruta, D.G. Morris, A.S. Plastun, J.T. Popielarski, J. Wei, T. Xu, T. Zhang, Q. Zhao, S. Zhao
    FRIB, East Lansing, Michigan, USA
 
  Funding: Work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE-SC0000661, the State of Michigan and Michigan State University.
The Facility for Rare Isotope Beams (FRIB), a major nuclear physics facility for research with fast, stopped, and reaccelerated rare isotope beams, is approaching the commencement of user operation in 2022 as planned. The readiness of the linear accelerator for the production of rare isotopes was verified by the acceleration of Xenon-124 and Krypton-86 heavy ion beams to 212 MeV/u using all 46 cryomodules with 324 superconducting cavities. Several key technologies were successfully developed and implemented for the world’s highest energy continuous wave heavy ion beams, such as full-scale cryogenics and superconducting radiofrequency resonator system, stripping heavy ions with a thin liquid lithium film flowing in an ultrahigh vacuum environment, and simultaneous acceleration of multiple-charge-state-heavy ion beams. These technologies are required to achieve ultimate FRIB beam energies beyond 200 MeV/u and beam power up to 400 kW. High intensity pulsed beams capable in delivering 200 kW beams to the target in CW mode were studied in the first segment of the linac.
 
slides icon Slides WEDC3 [2.437 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-HB2021-WEDC3  
About • Received ※ 16 October 2021 — Revised ※ 20 October 2021 — Accepted ※ 22 November 2021 — Issue date ※ 24 December 2021
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THDC2 Commissioning of the ESS Front End solenoid, LEBT, rfq, emittance 225
 
  • N. Milas, C.S. Derrez, E.M. Donegani, M. Eshraqi, B. Gålander, H. Hassanzadegan, E. Laface, Y. Levinsen, R. Miyamoto, M. Muñoz, E. Nilsson, D.C. Plostinar, A.G. Sosa, R. Tarkeshian, C.A. Thomas
    ESS, Lund, Sweden
 
  The European Spallation Source, currently under construction in Lund, Sweden, will be the brightest spallation neutron source in the world, when the proton linac driver achieves the design power of 5 MW at 2 GeV beam energy. Such a high power requires production, efficient acceleration, and transport of a high current proton beam with minimal loss. This implies in a challenging design and beam commissioning of this machine. The linac features a long pulse length of 2.86 ms at a relatively low repetition late of 14 Hz. The ESS ion source and low energy beam transport are in-kind contributions from INFN-LNS. Beam commissioning of this section started in September 2018 and continued until early July in 2019. This article presents highlights from a campaign of beam characterizations and optimizations during this beam commissioning stage.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-HB2021-THDC2  
About • Received ※ 17 October 2021 — Revised ※ 20 October 2021 — Accepted ※ 22 November 2021 — Issue date ※ 01 December 2021
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