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論文

Engineering design of the RF input coupler for the IFMIF prototype RFQ linac

前原 直; Palmieri, A.*; Mereu, P.*; 市川 雅浩; 高橋 博樹; Comunian, M.*; 鈴木 寛光; Pisent, A.*; 杉本 昌義

Fusion Engineering and Design, 88(9-10), p.2740 - 2743, 2013/10

 被引用回数:3 パーセンタイル:29.69(Nuclear Science & Technology)

For the IFMIF/EVEDA RFQ linac, engineering design of the RF input coupler is carried out. The RF input coupler with a cooling port ($$L$$ = $$lambda$$/4), based on a 6 1/8 inch co-axial waveguide, is designed for the CW operation, and cooling channels are installed into the inside of loop antenna, the outer-conductor and the inner-conductor around RF window. For the loop size, RF coupling factors on beam loading are evaluated with based on the measured S$$_{11}$$ parameter and Q value on Aluminum RFQ module. In order to fulfill the acceptance Q$$_{0}$$ value of 9000 for the RFQ, the insertion depth of L = 45 mm is chosen. For this loop antenna size, magnetic field strength around the loop and surface loss density on the loop are evaluated, it is found to satisfy with the RF coupler acceptance values.

論文

Commissioning of the IFMIF/EVEDA accelerator prototype; Objectives & plans

Vermare, C.*; Garin, P.*; Shidara, H.*; Beauvais, P. Y.*; Mosnier, A.*; Ibarra, A.*; Heidinger, R.*; Facco, A.*; Pisent, A.*; 前原 直; et al.

Proceedings of 1st International Particle Accelerator Conference (IPAC '10) (Internet), p.777 - 779, 2010/05

In the frame of the IFMIF/EVEDA project, a high-intensity (125 mA) CW deuteron accelerator will be installed and commissioned at the Rokkasho Broader Approach (BA) site. The main objective of this 9 MeV prototype is to provide information on the feasibility of the design, the manufacturing and the operation of the two linacs (up to 40 MeV) foreseen for IFMIF. Based on the requirements for each system (accelerators, lithium target and tests facility) which are deduced from the IFMIF fusion material irradiation requirements, given by the users, the objectives of this accelerator prototype are defined and presented here. Also, because of the distributed nature of the design work and the procurement of the accelerator, organization of the installation and commissioning phase is essential. The installation and commissioning schemes, the organization proposed and the overall plans are presented.

論文

The Accelerator prototype of the IFMIF/EVEDA project

Mosnier, A.*; Beauvais, P. Y.*; Branas, B.*; Comunian, M.*; Facco, A.*; Garin, P.*; Gobin, R.*; Gournay, J. F.*; Heidinger, R.*; Ibarra, A.*; et al.

Proceedings of 1st International Particle Accelerator Conference (IPAC '10) (Internet), p.588 - 590, 2010/05

The objectives of the IFMIF/EVEDA project are to produce the detailed design of the entire IFMIF facility, as well as to build and test a number of prototypes, including a high-intensity CW deuteron accelerator (125 mA @ 9 MeV). Most of the accelerator components (injector, RFQ, superconducting RF-linac, transport line and beam dump, RF systems, local control systems, beam instrumentation) are designed and provided by European institutions (CEA/Saclay, CIEMAT, INFN/LNL, SCK-CEN), while the RFQ couplers, the supervision of the control system and the building including utilities constructed at Rokkasho BA site are provided by JAEA. The coordination between Europe and Japan is ensured by an international project team, located in Rokkasho, where the accelerator will be installed and commissioned. The design and R&D activities are presented, as well as the schedule of the prototype accelerator.

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