MOA2I —  Plenary Presentations WGs A-E   (09-Oct-23   11:05—12:50)
Paper Title Page
MOA2I1
 Beam Commissioning of the J-PARC Mr After Its High-Repetition Rate Upgrade  
 
  • Y. Sato, H. Hotchi
    KEK, Ibaraki, Japan
  
  At the J-PARC MR, a project to increase beam power with faster repetition rates is currently underway. With large-scale hardware upgrades in Jul. 2021 to Jun. 2022, the MR operation cycle for the fast extraction mode has been shortened from 2.48 s to 1.36 s, and beam commissioning at this operation cycle is in progress now. The MR first aims to achieve a beam power of >750 kW at this operation cycle, and then finally 1.3 MW by further shortening the operation cycle to 1.16 s and with a higher beam intensity of 3.3 x 1014 ppp. This paper describes the beam commissioning status including the future prospect.  
slides icon Slides MOA2I1 [8.270 MB]  
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MOA2I2
 Challenges & Status of HIAF Project and Brief Introduction of Ciads Project in China  
 
  • J.C. Yang
    IMP/CAS, Lanzhou, People’s Republic of China
  
  HIAF (High Intensity heavy ion Accelerator Facility) is a proposed new accelerator facility for advances in the nuclear physics and related research fields in China. The construction of the accelerator complex began in 2018 and is scheduled to be complete by the end of 2025. In the past several years, the prototypes have been developed successfully for these innovative technologies. In this presentation, progress and status of civil engineering and infrastructure construction of HIAF are presented, R&D on critical accelerator techniques and prototypes of core devices are introduced. Accelerator Driven Sub-critical System (ADS) is considered to be the optimum method of converting spent fuel into short-lived isotopes. Currently, ADS is still in the transitional phase from key technologies tackling to systematic and integrated research. As one of the national major science and technology infrastructures, the China initiative Accelerator Driven System (CiADS) will be the world¿s first prototype of ADS facility at megawatt level to explore the safe and proper technology of nuclear waste disposal. The brief introduction of CiADS will be given in this presentation.  
slides icon Slides MOA2I2 [16.051 MB]  
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MOA2I3
 Accelerator Challenges at ESS  
 
  • M.E. Eshraqi
    ESS, Lund, Sweden
  
  The European Spallation Source (ESS), undergoing concurrent installation, testing and beam commissioning in Lund, Sweden, will be the brightest source of cold neutrons once the driving proton linac reaches the intermediate energy of 800 MeV and a power of 2 MW. The final goal of ESS is to deliver a 2 GeV beam of protons with an average power of 5 MW to target. The high brightness of the neutron source is achieved by optimization of the rotating tungsten target and the innovative butterfly neutron moderator. The high beam power of the linac demands high-quality beam production, efficient acceleration, and near lossless transport of a high current beam. All of these impose strict requirements on the design and beam commissioning of this machine. The linac is being commissioned in several steps as the installation progresses. This talk presents the status of the project, challenges in the accelerator and updates on the beam commissioning.  
slides icon Slides MOA2I3 [19.436 MB]  
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