IPAC2019 - List of Authors (Fuwa, Y.)

Paper	Title	Page
MOPRB021	Remodeling of 150 MeV FFAG Main Ring at KURNS to Pion Production Ring	616
	K. Suga, Y. Fuwa, Y. Ishi, Y. Kuriyama, Y. Mori, H. Okita, T. Uesugi Kyoto University, Research Reactor Institute, Osaka, Japan
	A possibility of remodeling main ring of 150 MeV FFAG accelerator at Kyoto University, Institute for Integrated Radiation and Nuclear Science (KURNS) to Pion Production Ring (PPR) for muon transmutation study has been discussed. Design was made on the assumption that 400 MeV proton beams circulate and hit a target in the ring to generate pions. Optimizations of lattice parameters and 3D magnet modeling are reported.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2019-MOPRB021
About •	paper received ※ 30 April 2019 paper accepted ※ 23 May 2019 issue date ※ 21 June 2019
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WEPGW040	Study of Beam Injection Efficiency in the Fixed Field Alternating Gradient Synchrotron at KURNS	2564
	T. Uesugi, Y. Fuwa, Y. Ishi, Y. Kuriyama, Y. Mori, H. Okita, K. Suga Kyoto University, Research Reactor Institute, Osaka, Japan
	In the fixed field alternating gradient synchrotron in KURNS, there are serious beam losses. In order to evaluate the efficiencies of beam injection, rf capture, and extraction, separately, a well calibrated electro-static bunch monitor was installed to measure the circulating beam current at each energy region. This paper reports the design of the monitor, calibration, and first results of beam measurements.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2019-WEPGW040
About •	paper received ※ 16 May 2019 paper accepted ※ 21 May 2019 issue date ※ 21 June 2019
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WEPRB025	High Density Mapping for Superconducting Cavities	2860
	Y. Iwashita, H. Tongu Kyoto ICR, Uji, Kyoto, Japan Y. Fuwa Kyoto University, Research Reactor Institute, Osaka, Japan R.L. Geng JLab, Newport News, Virginia, USA H. Hayano KEK, Ibaraki, Japan
	High density mapping system for superconducting cavities are under development. Testing on the stiffener X-ray mapping system at JLAB showed consistent results in comparison with simultaneously taken GM tube or ion chamber output signals. The system provides better visi-bility as shown by data briefly reported here. In addition to the temperature and the X-ray mapping, a sensitive magnetic field mapping system with high spatial density is also under development. The magnetic field sensor is AF755B, whose operations at cryogenic temperatures are already reported by other group. Our development status using the magnetic field sensor will be reported.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2019-WEPRB025
About •	paper received ※ 19 May 2019 paper accepted ※ 22 May 2019 issue date ※ 21 June 2019
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Remodeling of 150 MeV FFAG Main Ring at KURNS to Pion Production Ring

616

K. Suga, Y. Fuwa, Y. Ishi, Y. Kuriyama, Y. Mori, H. Okita, T. Uesugi
Kyoto University, Research Reactor Institute, Osaka, Japan

A possibility of remodeling main ring of 150 MeV FFAG accelerator at Kyoto University, Institute for Integrated Radiation and Nuclear Science (KURNS) to Pion Production Ring (PPR) for muon transmutation study has been discussed. Design was made on the assumption that 400 MeV proton beams circulate and hit a target in the ring to generate pions. Optimizations of lattice parameters and 3D magnet modeling are reported.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2019-MOPRB021

About •

paper received ※ 30 April 2019 paper accepted ※ 23 May 2019 issue date ※ 21 June 2019

Export •

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

WEPGW040

Study of Beam Injection Efficiency in the Fixed Field Alternating Gradient Synchrotron at KURNS

2564

T. Uesugi, Y. Fuwa, Y. Ishi, Y. Kuriyama, Y. Mori, H. Okita, K. Suga
Kyoto University, Research Reactor Institute, Osaka, Japan

In the fixed field alternating gradient synchrotron in KURNS, there are serious beam losses. In order to evaluate the efficiencies of beam injection, rf capture, and extraction, separately, a well calibrated electro-static bunch monitor was installed to measure the circulating beam current at each energy region. This paper reports the design of the monitor, calibration, and first results of beam measurements.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2019-WEPGW040

About •

paper received ※ 16 May 2019 paper accepted ※ 21 May 2019 issue date ※ 21 June 2019

Export •

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

WEPRB025

High Density Mapping for Superconducting Cavities

2860

Y. Iwashita, H. Tongu
Kyoto ICR, Uji, Kyoto, Japan
Y. Fuwa
Kyoto University, Research Reactor Institute, Osaka, Japan
R.L. Geng
JLab, Newport News, Virginia, USA
H. Hayano
KEK, Ibaraki, Japan

High density mapping system for superconducting cavities are under development. Testing on the stiffener X-ray mapping system at JLAB showed consistent results in comparison with simultaneously taken GM tube or ion chamber output signals. The system provides better visi-bility as shown by data briefly reported here. In addition to the temperature and the X-ray mapping, a sensitive magnetic field mapping system with high spatial density is also under development. The magnetic field sensor is AF755B, whose operations at cryogenic temperatures are already reported by other group. Our development status using the magnetic field sensor will be reported.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2019-WEPRB025

About •

paper received ※ 19 May 2019 paper accepted ※ 22 May 2019 issue date ※ 21 June 2019

Export •

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