Installation and first operation of the International Fusion Materials Irradiation Facility injector at the Rokkasho site

Abstract

The International Fusion Materials Irradiation Facility (IFMIF) linear IFMIF prototype accelerator injector dedicated to high intensity deuteron beam production has been designed, built, and tested at CEA/Saclay between 2008 and 2012. After the completion of the acceptance tests at Saclay, the injector has been fully sent to Japan. The re-assembly of the injector has been performed between March and May 2014. Then after the check-out phase, the production of the first proton beam occurred in November 2014. Hydrogen and deuteron beam commissioning is now in progress after having proceeded with the final tests on the entire injector equipment including high power diagnostics. This article reports the different phases of the injector installation pointing out the safety and security needs, as well as the first beam production results in Japan and chopper tests. Detailed operation and commissioning results (with H(+) and D(+) 100 keV beams) are reported in a second article.

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

“…On the Rokkasho site, during the source and LEBT beam commissioning, an integrated beam time limit of 58.4 h within a three months sliding period has been decided after safety studies [17]. A low level of accelerator activation, in agreement with the radio-protection calculations that have been previously performed, has been observed.…”

The IFMIF-DONES Project: Design Status and Main Achievements Within the EUROfusion FP8 Work Programme

“…The D+ beam is produced by an Electron Cyclotron Resonance ion source [ 22 ] extracted and accelerated in continuous wave (CW) mode up to 100 keV. A Low Energy Beam Transport (LEBT) section guides the deuteron beam from the source to a Radio Frequency Quadrupole (RFQ) (Fig.…”

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

“…The injector has been developed in CEA Saclay and already demonstrated 140mA/100keV deuterium beam [1]. The injector was disassembled and delivered to the International Fusion Energy Research Center (IFERC) in Rokkasho, Japan, and the commissioning has started after its reassembly 2014; the first beam production has been achieved in November 2014 [2]. Up to now, 100keV/120mA/CW hydrogen ion beam has been produced with a low beam emittance of 0.2 π.mm.mrad (rms, normalized).…”