Abstract

The Japan Atomic Energy Agency (JAEA) has been proposing an accelerator-driven nuclear transmutation system (ADS) as a future nuclear system. In preparation for the actual design of the CW proton linac for the JAEA-ADS, we are now prototyping a low-β (≈ 0.2) single-spoke cavity. The cavity fabrication started in 2020. Most of the cavity parts were shaped in fiscal year 2020 by press-forming and machining. In 2021, we started welding the shaped cavity parts together. By preliminarily investigating the optimum welding conditions using mock-up test pieces, each cavity part was joined together with smooth welding beads. So far, we have fabricated the body section and the beam port sections. By measuring the resonant frequency of the temporarily assembled cavity, it was confirmed that there were no significant problems with the cavity fabrication.

Details

Title
Fabrication progress of the prototype spoke cavity for the JAEA-ADS linac
Author
Tamura, J 1 ; Kondo, Y 1 ; Yee-Rendon, B 1 ; Meigo, S 1 ; Maekawa, F 1 ; Kako, E 2 ; Umemori, K 2 ; Sakai, H 2 ; Dohmae, T 2 

 J-PARC, JAEA, 2-4 Shirakata, Tokai-mura, Naka-gun , Ibaraki 319-1195 , Japan 
 iCASA, KEK, 1-1 Oho, Tsukuba , Ibaraki 305-0801 , Japan 
First page
052008
Publication year
2024
Publication date
Jan 2024
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2918780817
Copyright
Published under licence by IOP Publishing Ltd. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.