Author: Yee-Rendon, B.    [Yee-Rendón, B.]
Paper Title Page
MOPOGE14 Current Status of the Spoke Cavity Prototyping for the JAEA-ADS Linac 180
 
  • J. Tamura, Y. Kondo, F. Maekawa, S.I. Meigo, B. Yee-Rendón
    JAEA/J-PARC, Tokai-mura, Japan
  • T. Dohmae, E. Kako, H. Sakai, K. Umemori
    KEK, Ibaraki, Japan
 
  The Japan Atomic Energy Agency (JAEA) has proposed an accelerator-driven subcritical system (ADS) to efficiently reduce high-level radioactive waste generated at nuclear power plants. One of the challenging R&D aspects of ADS is the reliability of the accelerator. In preparation for the full-scale design of the CW proton linac for the JAEA-ADS, we are now prototyping a low-beta (around 0.2) single spoke cavity. Since there is no experience in Japan in manufacturing a superconducting spoke cavity, prototyping and performance testing of the cavity is essential to ensure the feasibility of the JAEA-ADS linac. In the Japanese fiscal year 2021, we have started welding cavity parts together. By preliminarily examining the electron beam welding conditions, each press-formed niobium part was joined with a smooth welding bead. The current status of the spoke cavity prototyping for the JAEA-ADS linac is presented.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-MOPOGE14  
About • Received ※ 01 August 2022 — Revised ※ 21 August 2022 — Accepted ※ 14 September 2022 — Issue date ※ 26 September 2022
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TU2AA01 Overview of ADS Projects in the World 310
 
  • B. Yee-Rendón
    JAEA/J-PARC, Tokai-mura, Japan
 
  Accelerator-driven subcritical systems (ADS) offer an advantageous option for the transmutation of nuclear waste. ADS employs high-intensity proton linear accelerators (linacs) to produce spallation neutrons for a subcritical reactor. Besides the challenges of any megawatt proton machine, ADS accelerator must operate with stringent reliability to avoid thermal stress in the reactor structures. Thus, ADS linacs have adopted a reliability-oriented design to satisfy the operation requirements. This work provides a review and the present status of the ADS linacs in the world.  
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DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-TU2AA01  
About • Received ※ 23 August 2022 — Revised ※ 28 August 2022 — Accepted ※ 01 September 2022 — Issue date ※ 14 October 2022
Cite • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)