IPAC2015 - List of Authors (Yamazaki, Y.)

Paper	Title	Page
WEPMA051	Superconducting Solenoid Package Prototyping for FRIB SRF Linac	2886
	K. Hosoyama, K. Akai, S. Yamaguchi KEK, Ibaraki, Japan E.E. Burkhardt, K. Saito, Y. Yamazaki FRIB, East Lansing, Michigan, USA
	Funding: This material is based upon work supported by the U.S. Department of Energy Office of Science under Coopertive Agreement DESC000661. FRIB is an under constructing machine in USA for nuclear physics, which has intensity front SRF linacs to accelerate ion beam from proton to uranium up to 200 MeV/u. FRIB has large users community, so the machine has to be operated very reliably and stably. Superconducting solenoid and steering dipoles as a package is mounted in the cryomodule nearby SRF cavities to focus beam strongly and space effectively. This produces an issue interacting between the fringe field from the solenoid and the SRF cavity, which makes potential performance degradation on SRF cavity. NbTi superconducting wire is utilized for the solenoid package. The high field design like 9T is very critical operation due to the SC characteristics of the wire. The solenoid package has to be designed very carefully. In this paper will report the prototyping of 25 cm 8T solenoid package for FRIB cryomodule, which includes design, fabrication, and cold test. * This work has been done under the collaboration between KEK and MSU.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-WEPMA051
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPF140	Unique Accelerator Integration Features of the Heavy Ion CW Driver Linac at FRIB	4051
	Y. Yamazaki, N.K. Bultman, A. Facco, M. Ikegami, F. Marti, G. Pozdeyev, J. Wei, Y. Zhang, Q. Zhao FRIB, East Lansing, Michigan, USA
	Funding: Work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE-SC0000661 The FRIB driver linac is a front runner for the future high power hadron linacs, making a full use of CW, superconducting acceleration from very low β. Accelerator Driven Nuclear Waste Transmutation System (ADS), International Fusion Material Irradiation Facility (IFMIF), Project-X type proton accelerators for high energy physics and others may utilize the technologies developed for the design, construction, commissioning and power ramp up of the FRIB linac. Although each technology has been already well developed individually (except for charge stripper), their integration is another challenge. In addition, extremely high Bragg peak of uranium beams (several thousand times as high as that of proton beams) gives rise to one of the biggest challenges in many aspects. This report summarizes these challenges and their mitigations, emphasizing the commonly overlooked features.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-THPF140
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Superconducting Solenoid Package Prototyping for FRIB SRF Linac

2886

K. Hosoyama, K. Akai, S. Yamaguchi
KEK, Ibaraki, Japan
E.E. Burkhardt, K. Saito, Y. Yamazaki
FRIB, East Lansing, Michigan, USA

Funding: This material is based upon work supported by the U.S. Department of Energy Office of Science under Coopertive Agreement DESC000661.
FRIB is an under constructing machine in USA for nuclear physics, which has intensity front SRF linacs to accelerate ion beam from proton to uranium up to 200 MeV/u. FRIB has large users community, so the machine has to be operated very reliably and stably. Superconducting solenoid and steering dipoles as a package is mounted in the cryomodule nearby SRF cavities to focus beam strongly and space effectively. This produces an issue interacting between the fringe field from the solenoid and the SRF cavity, which makes potential performance degradation on SRF cavity. NbTi superconducting wire is utilized for the solenoid package. The high field design like 9T is very critical operation due to the SC characteristics of the wire. The solenoid package has to be designed very carefully. In this paper will report the prototyping of 25 cm 8T solenoid package for FRIB cryomodule, which includes design, fabrication, and cold test.
* This work has been done under the collaboration between KEK and MSU.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-WEPMA051

Export •

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

THPF140

Unique Accelerator Integration Features of the Heavy Ion CW Driver Linac at FRIB

4051

Y. Yamazaki, N.K. Bultman, A. Facco, M. Ikegami, F. Marti, G. Pozdeyev, J. Wei, Y. Zhang, Q. Zhao
FRIB, East Lansing, Michigan, USA

Funding: Work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE-SC0000661
The FRIB driver linac is a front runner for the future high power hadron linacs, making a full use of CW, superconducting acceleration from very low β. Accelerator Driven Nuclear Waste Transmutation System (ADS), International Fusion Material Irradiation Facility (IFMIF), Project-X type proton accelerators for high energy physics and others may utilize the technologies developed for the design, construction, commissioning and power ramp up of the FRIB linac. Although each technology has been already well developed individually (except for charge stripper), their integration is another challenge. In addition, extremely high Bragg peak of uranium beams (several thousand times as high as that of proton beams) gives rise to one of the biggest challenges in many aspects. This report summarizes these challenges and their mitigations, emphasizing the commonly overlooked features.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-THPF140

Export •

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