The Linear IFMIF Prototype Accelerator (LIPAc) has been constructed in Rokkasho, Japan to demonstrate the validity of the low energy section of an IFMIF deuteron accelerator up to 9 MeV with a beam current of 125 mA in continuous wave (CW) under the joint collaboration between EU and Japan. The short-pulse 125-mA deuteron beam acceleration to 5 MeV was successfully demonstrated in 2019. Now LIPAc is under commissioning toward the CW beam acceleration. The effort to realize the high-current CW beam, e.g. the commissioning of the ion source at high-current, CW and the conditioning of the RFQ cavity at CW, and the result of the beam commissioning campaign will be presented.
- K. Hasegawa, T. Akagi, A. De Franco, T. Ebisawa, K. Hirosawa, T. Itagaki, A. Kasugai, K. Kondo, K. Kumagai, S. Kwon 
 National Institutes for Quantum Science and Technology
- J. Hyun 
 Sokendai, the Graduate University for Advanced Studies
- K. Masuda, F. Cismondi, F. Scantamburlo 
 IFMIF/EVEDA Project Team
- A. Mizuno 
 Japan Synchrotron Radiation Research Institute
- Y. Shimosaki 
 High Energy Accelerator Research Organization
- M. Sugimoto 
 Nippon Advanced Technology Co., Ltd.
- P. Cara, J. Chambrillon 
 Fusion for Energy
- Y. Carin, D. Duglue, H. Dzitko, D. Gex, A. Jokinen, I. Moya, G. Phillips 
 Fusion For Energy
- N. Bazin, B. Bolzon, T. Chaminade, B. Renard 
 Commissariat à l'Energie Atomique
- N. Chauvin, S. Chel 
 Commissariat à l'Energie Atomique et aux Energies Alternatives
- J. Marroncle 
 Université Paris-Saclay, CEA
- F. Arranz, B. Branas Lasala, J. Castellanos, C. de la Morena, D. Gavela, V. Gutiérrez, D. Jimenez-Rey, Á. Marchena, P. Méndez, J. Molla, C. Oliver, D. Regidor, A. Ros, V. Villamayor, M. Weber 
 Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
- O. Nomen 
 Catalonia Institute for Energy Research
- I. Podadera 
 Consorcio IFMIF-DONES España
- L. Antoniazzi, L. Bellan, M. Comunian, A. Facco, E. Fagotti, A. Palmieri, A. Pisent 
 Istituto Nazionale di Fisica Nucleare
- F. Grespan 
 European Spallation Source ERIC
About:  Received: 03 May 2023 — Revised: 13 Jun 2023 — Accepted: 12 Jun 2023 — Issue date: 26 Sep 2023