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Chinese Physics C> 2008, Vol. 32> Issue(12) : 1003-1006 DOI: 10.1088/1674-1137/32/12/012

Development of high purity niobium used in SRF accelerating cavity

  • Niobium is widely used in SRF (Superconducting Radio Frequency) cavities due to its excellent superconductivity and workability. With the continuous development of technology, higher demands of material are raised. One of the key issues is that RRR (Residual Resistance Ratio) of the Nb material should be more than 300, which requires that the Nb ingot have even higher RRR. This article introduces the development and the experimental results of high purity niobium in OTIC in Ningxia (Ningxia Orient Tantalum Industry Co. Ltd.), and the test results of the single cell TESLA (Tera Electron volt energy Superconducting Linear Accelerator) shaped cavity manufactured by Peking University using Nb material from OTIC.

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    [1] . HE Ji-Lin. China Material Engineering Volume 5, Nonferrous Metal Material Engineering Volume 10, Ta, Nb and its Alloy. Beijing: Chemical Industry Press, 2006. 165 (in Chinese)2. WANG Zhao-Xin, XIN Liang-Zuo, ZENG Fang-Ping. Tantalum and Niobium Metallurgy. China: Rare Metal Metallurgical Committee, 1998. 20-21 (in Chinese)3. MA Fu-Kang, QIU Xiang-Dong, JIA Hou-Sheng et al. Niobium and Tantalum. Changsha: Central South University of Technology Press, 1997. 23-25 (in Chinese)4. "Rare Metal Material Handbook" Editing Committee.Rare Metal Handbook. Beijing: Metallurgical Industry Press, 1984. 218-219 (in Chinese)5. Padamsee H, Knobloch J, Hays T. RF Superconductivity for Accelerators. New York: John Wiley Sons. Inc, 1998.106, 3156. Brinkmann R, Flotmann K, Rossbach J et al. TESLA Technical Design Report, Part II The Accelerator. Hamvurg:DESY, 2001, 20-257. Padamsee H. In: Proceedings of the 2005 Particle Accelerator Conference. Eds Horak C. USA: Institute of Electrical and Electronics Engineers. Inc, 2005, 461-4658. Geng R L, Eremeev G V, Padamsee H et al. High Grarient Studies for ILC with Single-Cell Re-Entrant Shape and Ellipticle Shape cavities Made of Fine-Grain and Large-Grain Niobium. In: Proceedings of the 2007 Particle Accelerator Conference, in press, 20089. Zhongxin Microalloy Technical Centre. Niobium Science and Technology. Beijing: Metallurgical Industry Press,2003, 117-131 (in Chinese)10. Kneisel P, Myneni G R, Ciovati G et al. In: Proceedings of the International Niobium Workshop 2006. Eds Myneni G,Carneiro T, Hutton A. USA: American Institute of Physics,2006. 84-97

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CHEN Lin, XIE Wei-Ping, LI Ming-Yang, HE Ji-Lin, FAN Hui-Ru, ZHANG Bao-Cheng, HE Fei-Si, ZHAO Kui, CHEN Jia-Er and LIU Ke-Xin. Development of high purity niobium used in SRF accelerating cavity[J]. Chinese Physics C, 2008, 32(12): 1003-1006. doi: 10.1088/1674-1137/32/12/012
CHEN Lin, XIE Wei-Ping, LI Ming-Yang, HE Ji-Lin, FAN Hui-Ru, ZHANG Bao-Cheng, HE Fei-Si, ZHAO Kui, CHEN Jia-Er and LIU Ke-Xin. Development of high purity niobium used in SRF accelerating cavity[J]. Chinese Physics C, 2008, 32(12): 1003-1006.  doi: 10.1088/1674-1137/32/12/012 shu
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Received: 2007-11-20
Revised: 2008-05-29
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Development of high purity niobium used in SRF accelerating cavity

    Corresponding author: HE Fei-Si,
  • Received Date: 2007-11-20
  • Accepted Date: 2008-05-29
  • Available Online: 2008-12-05

Abstract: 

Niobium is widely used in SRF (Superconducting Radio Frequency) cavities due to its excellent superconductivity and workability. With the continuous development of technology, higher demands of material are raised. One of the key issues is that RRR (Residual Resistance Ratio) of the Nb material should be more than 300, which requires that the Nb ingot have even higher RRR. This article introduces the development and the experimental results of high purity niobium in OTIC in Ningxia (Ningxia Orient Tantalum Industry Co. Ltd.), and the test results of the single cell TESLA (Tera Electron volt energy Superconducting Linear Accelerator) shaped cavity manufactured by Peking University using Nb material from OTIC.

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