IPAC2016 - List of Authors (Kasughai, A.)

Paper	Title	Page
MOZB02	Challenges of the High Current Prototype Accelerator of IFMIF/EVEDA	52
	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
	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.
	Slides MOZB02 [18.358 MB]
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Paper

Title

Page

Challenges of the High Current Prototype Accelerator of IFMIF/EVEDA

52

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

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.

Slides MOZB02 [18.358 MB]

Export •

reference for this paper to ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)