COMMISSIONING STATUS OF LINEAR IFMIF PROTOTYPE ACCELERATOR ( LIPAc )

Significant progress was obtained on the installation and commissioning of the Linear IFMIF Prototype Accelerator (LIPAc). On the injector experiment, the emittance of 0.2 πmm·mrad has been demonstrated, which is well smaller than that of required value (0.3 πmm·mrad). Eight sets of RF modules (175 MHz, 200 kW for each) were connected to the RFQ with 8 coaxial waveguides, and RF conditioning has been started. With a simultaneous power injection from 8 RF modules into the RFQ and careful conditioning, a required RF filed for the 5 MeV D+ beam acceleration was obtained at short pulse. The pulse extension is underway toward the CW operation. The first H+ beam acceleration will be started in June 2018. After the H+ beam commissioning, D+ beam acceleration will be implemented aiming at 5 MeV 125 mA, 0.1% duty. In parallel, the preparation of SRF (superconducting Radio-Frequency linac), which accelerates the D+ beam up to 9 MeV, has proceeded.