SRF2023 - List of Authors (Michizono, S.)

Paper	Title	Page
WEPWB098	Development and Evaluation of STF-Type Power Coupler for Cost Reduction at the High Energy Accelerator Research Organization	820
	Y. Yamamoto, T. Matsumoto, S. Michizono KEK, Ibaraki, Japan
	At KEK, cost reduction study for STF-type input power coupler used in the STF-2 accelerator has been attempted since FY2015. In FY2019, one coupler was fabricated by some cost-effective and non-conventional methods including different alumina-ceramic material, copper plating and TiN coating. In high power RF test at room temperature, this coupler achieved 1 MW at 900 µsec/5Hz, and 935 kW @1.65 msec/5Hz. After that, this coupler experienced 10 thermal cycle tests from room temperature to liquid nitrogen temperature without vacuum leakage. In this report, the detailed results will be presented.
DOI •	reference for this paper ※ doi:10.18429/JACoW-SRF2023-WEPWB098
About •	Received ※ 17 June 2023 — Revised ※ 24 June 2023 — Accepted ※ 26 June 2023 — Issue date ※ 02 July 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEKEA01	Current Status and Future Technological Collaboration for the ILC
	S. Michizono KEK, Ibaraki, Japan
	The ILC is a Higgs Factory, where electron-positrons are accelerated by SRF to 125 GeV. In 2013, the GDE, an international organization of researchers, compiled the TDR. It is currently being studied under the International Development Team (IDT) with international collaboration. The ILC uses about 8,000 9-cell cavities similar to those in the European XFEL and operates at an average of 31.5 MV/m. The start of the European XFEL operation and the commissioning of LCLS-II show the maturity of the SRF technology. Furthermore, research is underway to develop new surface treatment to obtain even higher performance cavities. An international technology development program focusing on SRF, nanobeams, and particle sources just started as the ¿ILC Technology Network¿ (ITN). For SRF, the key topics is to realize high-performance cavities in the world. Other topics include compliance with the High Pressure Gas Safety Act, the design of cryomodules that will become the global standard, and the development of crab cavities. We believe that promoting international cooperation including SRF will lead to the development of a high-performance SRF accelerator as well as for the ILC.
	Slides WEKEA01 [12.054 MB]
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Development and Evaluation of STF-Type Power Coupler for Cost Reduction at the High Energy Accelerator Research Organization

820

Y. Yamamoto, T. Matsumoto, S. Michizono
KEK, Ibaraki, Japan

At KEK, cost reduction study for STF-type input power coupler used in the STF-2 accelerator has been attempted since FY2015. In FY2019, one coupler was fabricated by some cost-effective and non-conventional methods including different alumina-ceramic material, copper plating and TiN coating. In high power RF test at room temperature, this coupler achieved 1 MW at 900 µsec/5Hz, and 935 kW @1.65 msec/5Hz. After that, this coupler experienced 10 thermal cycle tests from room temperature to liquid nitrogen temperature without vacuum leakage. In this report, the detailed results will be presented.

DOI •

reference for this paper ※ doi:10.18429/JACoW-SRF2023-WEPWB098

About •

Received ※ 17 June 2023 — Revised ※ 24 June 2023 — Accepted ※ 26 June 2023 — Issue date ※ 02 July 2023

Cite •

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

WEKEA01

Current Status and Future Technological Collaboration for the ILC

S. Michizono
KEK, Ibaraki, Japan

The ILC is a Higgs Factory, where electron-positrons are accelerated by SRF to 125 GeV. In 2013, the GDE, an international organization of researchers, compiled the TDR. It is currently being studied under the International Development Team (IDT) with international collaboration. The ILC uses about 8,000 9-cell cavities similar to those in the European XFEL and operates at an average of 31.5 MV/m. The start of the European XFEL operation and the commissioning of LCLS-II show the maturity of the SRF technology. Furthermore, research is underway to develop new surface treatment to obtain even higher performance cavities. An international technology development program focusing on SRF, nanobeams, and particle sources just started as the ¿ILC Technology Network¿ (ITN). For SRF, the key topics is to realize high-performance cavities in the world. Other topics include compliance with the High Pressure Gas Safety Act, the design of cryomodules that will become the global standard, and the development of crab cavities. We believe that promoting international cooperation including SRF will lead to the development of a high-performance SRF accelerator as well as for the ILC.

Slides WEKEA01 [12.054 MB]

Cite •

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