Operation and commissioning of IFMIF (International Fusion Materials Irradiation Facility) LIPAc injector

Okumura, Y.; Gobin, R.; Knaster, J.; Heidinger, R.; Ayala, Juan Marcos; Bolzon, B.; Cara, Philippe; Chauvin, Nicolas; Chel, S.; Gex, Dominique; Harrault, F.; Ichimiya, Ryo; Ihara, Akira; Ikeda, Y.; Kasugai, Atsushi; Kikuchi, Takayuki; Kitano, T.; Komata, M.; Kondo, Keitaro; Maebara, S.; Marqueta, Alvaro; O’hira, Shigeru; Pérez, Mario; Phillips, G.; Pruneri, Giuseppe; Sakamoto, K.; Scantamburlo, Francesco; Senée, Franck; Shinto, K.; Sugimoto, M.; Takahashi, Hiroki; Usami, Hiroshi; Valette, Matthieu

doi:10.1063/1.4936248

Cited by 10 publications

(2 citation statements)

References 5 publications

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“…Two boron nitride disks protect the entrance of the waveguide and the plasma electrode from ion bombardment and help to mitigate space charge phenomena. The ion source plus its low energy beam transfer is installed and being commissioned at Rokkasho Fusion Institute [66][67][68] A dual solenoid focusing scheme was chosen to match the RFQ entrance with a transverse emittance value at the output of the LEBT <0.3π mm•mrad. The achievement of 95% D + fraction with the optimum Twiss parameters would result in a transmission >90% at the 5 MeV output of the RFQ, as per simulations [69].…”

Section: Feasibility Of a 125 Ma Cw Deuteron Beams At 40 Mevmentioning

confidence: 99%

Overview of the IFMIF/EVEDA project

Knaster¹,

Garin

Matsumoto

et al. 2017

Nucl. Fusion

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IFMIF, the International Fusion Materials Irradiation Facility, is presently in its engineering validation and engineering design activities (EVEDA) phase under the Broader Approach Agreement. The engineering design activity (EDA) phase was successfully accomplished within the allocated time. The engineering validation activity (EVA) phase has focused on validating the Accelerator Facility (AF), the Target Facility and the Test Facility (TF) by constructing prototypes. The ELTL at JAEA, Oarai successfully demonstrated the long-term stability of a Li flow under the IFMIF’s nominal operational conditions keeping the specified free-surface fluctuations below ±1 mm in a continuous manner for 25 d. A full-scale prototype of the high flux test module (HFTM) was successfully tested in the HELOKA loop (KIT, Karlsruhe), where it was demonstrated that the irradiation temperature can be set individually and kept uniform. LIPAc, designed and constructed in European labs under the coordination of F4E, presently under installation and commissioning in the Rokkasho Fusion Institute, aims at validating the concept of IFMIF accelerators with a D+ beam of 125 mA continuous wave (CW) and 9 MeV. The commissioning phases of the H+/D+ beams at 100 keV are progressing and should be concluded in 2017; in turn, the commissioning of the 5 MeV beam is due to start during 2017. The D+ beam through the superconducting cavities is expected to be achieved within the Broader Approach Agreement time frame with the superconducting cryomodule being assembled in Rokkasho. The realisation of a fusion-relevant neutron source is a necessary step for the successful development of fusion. The ongoing success of the IFMIF/EVEDA involves ruling out concerns about potential technical showstoppers which were raised in the past. Thus, a situation has emerged where soon steps towards constructing a Li(d,xn) fusion-relevant neutron source could be taken, which is also justified in the light of costs which are marginal to those of a fusion plant.

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Section: Feasibility Of a 125 Ma Cw Deuteron Beams At 40 Mevmentioning

confidence: 99%

Overview of the IFMIF/EVEDA project

Knaster¹,

Garin

Matsumoto

et al. 2017

Nucl. Fusion

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“…Only a few results of the A1 and A2 phases are presented here, as more comprehensive reports were published in previous papers [14,15].…”

Section: Phases A1 and A2mentioning

confidence: 99%

Deuteron beam commissioning of the linear IFMIF prototype accelerator ion source and low energy beam transport

Chauvin

Akagi²,

Bellan

et al. 2019

Nucl. Fusion

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During the EVEDA (Engineering Validation and Engineering Design Activities) phase of the IFMIF (International Fusion Materials Irradiation Facility) project, a 125 mA/9 MeV prototype accelerator (LIPAc) has to be built, tested an operated in Rokkasho-Mura (Japan). Involved in this project for several years, CEA/Saclay designed the injector of this accelerator which is composed by an ECR ion source, delivering a 140 mA deuteron beam at 100 keV, and a low energy beam transport (LEBT) line to match the beam for the injection into the RFQ. In this paper, the components of the LIPAc injector are described. The commissioning of the ion source and LEBT with beam started in November 2014. The different phases of the commissioning are explained and some noticeable experimental results obtained with a D + beam at 100 keV are presented.

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