SRF2011 - List of Authors (Chi, Y.L.)

Paper

Title

Page

IHEP 1.3GHz SRF Technology R&D Status

87

J. Gao, Y.L. Chi, J.P. Dai, H.S. Guo, T.M. Huang, H.Y. Lin, C. H. Li, D.Z. Li, S.P. Li, Z.Q. Li, Z.C. Liu, Q. Ma, W.M. Pan, F. Qiu, Y. Sun, G.W. Wang, Q.Y. Wang, J.Y. Zhai, T.X. Zhao
IHEP Beijing, Beijing, People's Republic of China
R. Ge
IHEP Beijng, Beijing, People's Republic of China

1.3 GHz superconducting radio-frequency (SRF) technology is one of the key technologies for the ILC and future XFEL and ERL projects in China. With the aim to develop 1.3 GHz SRF technology, IHEP has started a program to build an SRF Accelerating Unit. This unit contains a 9-cell 1.3 GHz superconducting cavity, a short cryomodule, a high power input coupler, a tuner, a low level RF system etc. This program also includes the SRF laboratory upgrade, which will permit the unit to be built and tested at IHEP. The unit will be used for the 1.3 GHz SRF system integration study, high power horizontal test and possible beam test in the future. In this paper, we report the recent R&D status of this program. The first large grain low-loss shape 9-cell superconducting RF cavity made by IHEP reached 20 MV/m in the first vertical test. The prototype tuner and LLRF system are under test. The first 1.3 GHz high power input coupler fabrication was finished and the cryomodule is under fabrication. Several key SRF facilities (CBP, CP, HPR, optical inspection camera, pretuning machine etc) for 9-cell cavity surface treatment and pre-tuning were successfully commissioned and in operation.

FRIOB03

Chinese Plan for ADS and CSNS

977

S. Fu, H. Chen, Y.L. Chi, S.X. Fang, L. Ma, W.M. Pan, J.Y. Tang, C. Zhang
IHEP Beijing, Beijing, People's Republic of China
Y. He, H.W. Zhao
IMP, Lanzhou, People's Republic of China

High intensity proton accelerator now has two major applications in China: one is Accelerator Driven Subcritical System for nuclear waste transmutation and another is spallation neutron source. A basic research program on ADS started in 2000 in China. Recently a Chinese roadmap for long-term development of ADS was proposed by Chinese Academy of Sciences and the first budget of about $260M has be approved for ADS key technology R&D. It includes a CW proton linac consisting of a room-temperature RFQ and superconducting spoke cavities. The ADS R&D program started in the first half of 2011. The almost same amount of budget has also been approved for the project of China Spallation Neutron Source(CSNS) and it is going to be launched in September 2011. CSNS accelerator consists of a room-temperature H⁻ linac and a rapid-cycling synchrotron with beam power of 100kW. It will be upgraded to 500kW beam power in future by adding some superconducting cavities to the linac. So superconducting RF accelerator technology becomes a major research direction in high intensity proton accelerator field in China. This paper will introduce these two programs and present the related R&D actives.

Slides FRIOB03 [4.072 MB]

Paper	Title	Page
MOPO015	IHEP 1.3GHz SRF Technology R&D Status	87
	J. Gao, Y.L. Chi, J.P. Dai, H.S. Guo, T.M. Huang, H.Y. Lin, C. H. Li, D.Z. Li, S.P. Li, Z.Q. Li, Z.C. Liu, Q. Ma, W.M. Pan, F. Qiu, Y. Sun, G.W. Wang, Q.Y. Wang, J.Y. Zhai, T.X. Zhao IHEP Beijing, Beijing, People's Republic of China R. Ge IHEP Beijng, Beijing, People's Republic of China
	1.3 GHz superconducting radio-frequency (SRF) technology is one of the key technologies for the ILC and future XFEL and ERL projects in China. With the aim to develop 1.3 GHz SRF technology, IHEP has started a program to build an SRF Accelerating Unit. This unit contains a 9-cell 1.3 GHz superconducting cavity, a short cryomodule, a high power input coupler, a tuner, a low level RF system etc. This program also includes the SRF laboratory upgrade, which will permit the unit to be built and tested at IHEP. The unit will be used for the 1.3 GHz SRF system integration study, high power horizontal test and possible beam test in the future. In this paper, we report the recent R&D status of this program. The first large grain low-loss shape 9-cell superconducting RF cavity made by IHEP reached 20 MV/m in the first vertical test. The prototype tuner and LLRF system are under test. The first 1.3 GHz high power input coupler fabrication was finished and the cryomodule is under fabrication. Several key SRF facilities (CBP, CP, HPR, optical inspection camera, pretuning machine etc) for 9-cell cavity surface treatment and pre-tuning were successfully commissioned and in operation.

FRIOB03	Chinese Plan for ADS and CSNS	977
	S. Fu, H. Chen, Y.L. Chi, S.X. Fang, L. Ma, W.M. Pan, J.Y. Tang, C. Zhang IHEP Beijing, Beijing, People's Republic of China Y. He, H.W. Zhao IMP, Lanzhou, People's Republic of China
	High intensity proton accelerator now has two major applications in China: one is Accelerator Driven Subcritical System for nuclear waste transmutation and another is spallation neutron source. A basic research program on ADS started in 2000 in China. Recently a Chinese roadmap for long-term development of ADS was proposed by Chinese Academy of Sciences and the first budget of about $260M has be approved for ADS key technology R&D. It includes a CW proton linac consisting of a room-temperature RFQ and superconducting spoke cavities. The ADS R&D program started in the first half of 2011. The almost same amount of budget has also been approved for the project of China Spallation Neutron Source(CSNS) and it is going to be launched in September 2011. CSNS accelerator consists of a room-temperature H⁻ linac and a rapid-cycling synchrotron with beam power of 100kW. It will be upgraded to 500kW beam power in future by adding some superconducting cavities to the linac. So superconducting RF accelerator technology becomes a major research direction in high intensity proton accelerator field in China. This paper will introduce these two programs and present the related R&D actives.
	Slides FRIOB03 [4.072 MB]