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WEIBLH2055 |
The Development of the High Current Superconducting Cavity at IHEP |
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- Z.C. Liu, J. Dai, J. Gao, F.S. He, S. Jin, Z.H. Mi, G.W. Wang, Q.Y. Wang, J.Y. Zhai, T.X. Zhao, H.J. Zheng
IHEP, Beijing, People's Republic of China
- F. Wang
PKU, Beijing, People's Republic of China
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Funding: Project 11275226 supported by NSFC
In recent years, high current superconducting cavity is much more important for the development of ERL light source. Several ERL light sources were proposed and high current low impedance superconducting cavity is the key role. To deliver an ampere beam current for multi-GeV ERLs, slotted cavity was proposed in 2010. And the test prototype cavity made of pure niobium was fabricated in 2014. The room temperature RF test shows the cavity has extreme low HOM impedance and very high HOM damping. 4.2 K vertical test was done in March, 2015 and the test results show the potential of the cavity in ERL applications and circular colliders. In this paper, we will show the design, fabrication and test results of the slotted cavity.
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Slides WEIBLH2055 [7.720 MB]
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WEIBLH2056 |
Recent Progress in SRF Acceleration Technology at Peking University |
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- S.W. Quan, J.E. Chen, P.L. Fan, L.W. Feng, J.K. Hao, S. Huang, L. Lin, K.X. Liu, F. Wang, Zh.W. Wang, X.D. Wen, H.M. Xie, K. Zhao, F. Zhu
PKU, Beijing, People's Republic of China
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A test facility for superconducting RF acceleration and ERL techniques are under development at Peking University. The electron source for the test facility, DC-SRF photoinjector, has been in operation since 2013. Great efforts have been made to drive the photoinjector toward stable operation. A linac cryomodule, which comprises two 9-cell TESLA-type cavities, is to be assembled soon. It is expected to be in position this summer for preliminary RF and beam tests. The beam line for the accelerator straight section is under construction, which consists of a 3-dipole merge section to transport the electron beam to the linac, a 4-dipole chicane after the linac for bunch manipulation, and the required matching optics. In this presentation, we will report our our latest progress, especially on the commissioning of DC-SRF photoinjector and the construction of the linac cryomodule and the accelerator straight section.
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Slides WEIBLH2056 [8.092 MB]
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| WEIDLH2068 |
Using a 1.3 GHz 20 kW Solid State Amplifier as RF Power Supply for DC-SRF Photo-injector |
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- F. Wang, L.W. Feng, J.K. Hao, L. Lin, K.X. Liu, S.W. Quan, B.C. Zhang
PKU, Beijing, People's Republic of China
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R&D of a 1.3GHz 20kW cw solid state amplifier，which consists of 88 elementary modules with individual power supplies, has been carried out under the cooperation between BBEF (Beijing) and Peking University for the DC-SRF photo-injector. It has been installed and applied to the experiments of the DC-SRF photo-injector at Peking University since 2012. The structure, test with full power and full reflection, improvements and performance for long-term operation of this 20 kW solid state RF amplifier will be described in this presentation.
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Slides WEIDLH2068 [7.234 MB]
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