Author: Oyaidzu, M.
Paper Title Page
WEPWB083 Basic Design and Consideration of Li-Vapor Contamination for A-FNS SRF 773
 
  • T. Ebisawa, K. Hasegawa, A. Kasugai, M. Oyaidzu, S. Sato
    QST Rokkasho, Aomori, Japan
  • E. Kako, H. Sakai, K. Umemori
    KEK, Ibaraki, Japan
  
  The Ad­vanced Fu­sion Neu­tron Source (A-FNS) pro­ject is in pro­gress­ing in Japan, QST Rokkasho in­sti­tute. A-FNS will demon­strate a per­for­mance of the DEMO DT fu­sion re­ac­tor ma­te­r­ial. In order to per­form the test, a high in­ten­sity deuteron beam ac­cel­er­a­tor will be used to pro­duce a high flux neu­tron field which is sim­i­lar to the 14 MeV DT neu­tron. The Su­per­con­duct­ing Ra­dio-Fre­quency lin­ear ac­cel­er­a­tor (SRF) is one com­po­nent of the A-FNS ac­cel­er­a­tor sys­tem. Al­though the A-FNS ac­cel­er­a­tor sys­tem de­sign is based on the IFMIF de­sign, the im­prove­ment of some sub­sys­tem has been con­sid­er­ing by tak­ing into ac­count the lessons learnt from the LIPAc pro­ject. In order to keep a high sta­bil­ity and avail­abil­ity of the SRF per­for­mance, we plan to in­crease the num­ber of SRF cav­i­ties and cry­omod­ules con­sid­er­ing the trou­ble or degra­da­tion of the cav­ity per­for­mance and mod­ify the en­gi­neer­ing de­sign of some com­po­nents. In ad­di­tion, chang­ing of the beam trans­port line de­sign and Li vapor con­t­a­m­i­na­tion study of SRF cav­ity are con­duct­ing. In this pre­sen­ta­tion, the progress of the SRF de­sign and re­lated ac­tiv­i­ties for A-FNS in QST will be pre­sented.  
DOI • reference for this paper ※ doi:10.18429/JACoW-SRF2023-WEPWB083  
About • Received ※ 28 June 2023 — Revised ※ 29 June 2023 — Accepted ※ 30 June 2023 — Issue date ※ 17 August 2023
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