1–6 Jun 2025
Taipei International Convention Center (TICC)
Asia/Taipei timezone

Development of an online adjustable waveguide coupler for CSNS- Ⅱ debuncher cavity

WEPS134
4 Jun 2025, 16:00
2h
Exhibiton Hall A _Salmon (TWTC)

Exhibiton Hall A _Salmon

TWTC

Poster Presentation MC7.T06 Normal Conducting RF Wednesday Poster Session

Speaker

MengXu Fan (Institute of High Energy Physics)

Description

The China Spallation Neutron Source Upgrade Project (CSNS-Ⅱ) will use two debuncher cavities to supplement the beam energy at the end of the linear accelerator. The PI mode structure operating at room temperature is chosen, and each debuncher cavity is equipped with an online adjustable waveguide coupler. The main body of the coupler is the WR1500 waveguide, and a hole on the narrow wall of the waveguide is opened to achieve the coupling between the cavity and the waveguide. Meanwhile, every coupler contains a removable waveguide window. In this paper, we will detail describe the electromagnetic, cooling and mechanical design of the coupler. Finally, the coupler is high-power conditioned to 1 MW with a duty factor of 2.25%, and the coupler factor of it can be online adjusted between 0.6˜3 without arc event.

Region represented Asia
Paper preparation format Word

Author

MengXu Fan (Institute of High Energy Physics)

Co-authors

Huachang Liu (Dongguan Neutron Science Center) Xiaolei Wu (Dongguan Neutron Science Center) Pei Hua Qu (Institute of High Energy Physics) Ahong Li (Institute of High Energy Physics) Yao Yang (Institute of High Energy Physics)

Presentation materials

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