| Title |
Challenges of the High Current Prototype Accelerator of IFMIF/EVEDA |
| Authors |
- J. Knaster, Y. Okumura
IFMIF/EVEDA, Rokkasho, Japan
- P. Cara
Fusion for Energy, Garching, Germany
- A. Kasughai
Japan Atomic Energy Agency (JAEA), International Fusion Energy Research Center (IFERC), Rokkasho, Kamikita, Aomori, Japan
- M. Sugimoto
QST/Takasaki, Takasaki, Japan
|
| Abstract |
LIPAc, under installation in Rokkasho will produce a 125 mA CW deuteron beam at 9 MeV. The objective of IFMIF is to generate a neutron flux of 10¹⁸ m-2s^{−1} at 14 MeV for fusion materials testing using 2 x 125 mA CW D⁺ beams at 40 MeV impacting on a liquid lithium jet of 15 m/s. An ECR deuteron injector at 140 mA and 100 keV will be the source for a 9.7m long 4-vane RFQ, which will be complemented by a 175 MHz SRF linac composed of 8 HWRs for producing 9 MeV D⁺ beam. For a beam transmission >90%, beam simulations demand a D⁺ beam emittance below <0.3π mm·mrad. The first attempt on such high current accelerator was in the US in the early 80s under FMIT project with a H²⁺ 100 mA CW 2 MeV beam. LEDA successfully conducted 100 mA CW H⁺ at 6.7 MeV at the RFQ output energy in the late 90s, but using superconducting HWRs accelerating cavities at 125 mA CW with low-β H⁺/D⁺ beam has never been attempted. Beam halo will be monitored with 3 cryogenic μ-loss monitors azimuthally placed in each of the 8 superconducting solenoids interleaved with the HWR structures. A novel approach based on a beam core-halo dual matching has been developed to handle the MW range beam average power.
|
| Paper |
download MOZB02.PDF [0.363 MB / 6 pages] |
| Slides |
download MOZB02_TALK.PDF [18.358 MB] |
| Export |
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※ EndNote |
| Conference |
IPAC2016, Busan, Korea |
| Series |
International Particle Accelerator Conference (7th) |
| Proceedings |
Link to full IPAC2016 Proccedings |
| Session |
Invited Oral Presentations, Hadron Accelerators |
| Date |
09-May-16 14:00–15:00 |
| Main Classification |
04 Hadron Accelerators |
| Sub Classification |
A17 High Intensity Accelerators |
| Keywords |
rfq, operation, linac, neutron, ion |
| Publisher |
JACoW, Geneva, Switzerland |
| Editors |
Christine Petit-Jean-Genaz (CERN, Geneva, Switzerland); Dong Eon Kim (PAL, Pohang, Republic of Korea); Kyung Sook Kim (PAL, Pohang, Republic of Korea); In Soo Ko (POSTECH, Pohang, Republic of Korea); Volker RW Schaa (GSI, Darmstadt, Germany) |
| ISBN |
978-3-95450-147-2 |
| Published |
June 2016 |
| Copyright |
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