Investigation on the fabrication of the 3rd harmonic superconducting cavity for the SSRF storage ring

MA Zhen-Yu; MA Guang-Ming; YU Hai-Bo; MAO Dong-Qing; FENG Zi-Qiang; HOU Hong-Tao; LIU Jian-Fei

doi:10.1088/1674-1137/33/9/017

Chinese Physics C> 2009, Vol. 33> Issue(9) : 792-797 DOI: 10.1088/1674-1137/33/9/017

Investigation on the fabrication of the 3rd harmonic superconducting cavity for the SSRF storage ring

Abstract
HTML
Reference
Related

PDF

Abstract：
A third harmonic superconducting niobium cavity has been proposed for installation in the Shanghai Synchrotron Radiation Facility (SSRF) storage ring to improve the Touschek lifetime. In order to investigate the feasibility of the superconducting cavity fabrication indigenously and the possibility to master the fabrication techniques, cavities were fabricated from copper and niobium sheets by deep drawing and electron-beam welding, and a series of measurements, such as resonant frequency, shape dimensions and wall thickness, were carried out during this process. After analysis of various problems existing in the fabrication process, technique improvements were proposed, and finally the precise shape as designed and resonant frequency within 1.2 MHz were achieved for the new completed cavities. In addition, full annealing was finally proved to be a good cure for niobium sheets' tearing up during deep drawing. By fabricating niobium cavities successfully, some problems to the next step were cleared. This paper introduces the process of cavity fabrication and its technique improvements towards forming, and the initial vertical test result of niobium cavity is also presented.

References

[1]

. ZHAO Z T. Nucl. Sci. Tech, 2003, 14(2): 12. Byrd J M, Georgsson M. Phys. Rev. Special Topics AB,2001, 4: 0307013. Byrd J M, Baptiste K, De Santis S et al. Nucl. Instrum.Methods in Phys. Res. A, 2000, 439: 154. Bosland P, Bredy Ph, Charrier J P et al. Super-3HC Cry-omodule: Layout and First Tests. Paris, France: EPAC.2002. 2217-22195. Kim E S, Sohn Y U, Chun M H et al. Design of a ThirdHarmonic Superconducting RF System at PLS. Lucerne,Switzerland. EPAC. 2004. 2125-21276. Georgsson M, Anders W, Kramer D et al. Nucl. Instrum.Methods in Phys. Res. A, 2001, 469: 3737. Ohkuma H. TOP-UP Operation in Light Sources. Genoa,Italy. EPAC. 2008. 36-408. ZHAO Z T, XU H J, DING H. Genoa, Italy. EPAC. 2008.998-10009. MA G M, ZHAO Z T, LIU J F. Chin. Phys. C (HEP NP), 2008, 32: 27510. HAO Jian-Kui et al. HEP NP, 2001, 25(6): 582 (in Chi-nese)11. Padamsee H, Knoblocn J, Hays T. RF superconductivityfor Accelerators. New York: John Wiley Sons, Inc., 1998.105-12712. Palmieri V. Seamless Superconducting RF Cavities. Pro-ceedings of the Particle Accelerator Conference. New York.1999. 541-54413. Singer W et al. AIP, 2003, 671: 16214. Hartwig K T et al. IEEE Transactions on Applied Super-conductivity, 2007, 17: 130515. Saito K et al. Half-Cell Die Designe for Right Cavity Ge-ometry in High Insity SC Proton Linac. Proceedings of the11th RF Superconductivity Workshop. Travemunde: Ger-many. 2003, 41

[1]	Wei Wang , Xiao-Ye He , Zheng Tang , Qiu-Yang Yao . Smoothing analysis of HLSII storage ring magnets. Chinese Physics C, 2016, 40(12): 127001. doi: 10.1088/1674-1137/40/12/127001
[2]	Qing-Lei Zhang , Shun-Qiang Tian , Bo-Cheng Jiang , Jie-Ping Xu , Zhen-Tang Zhao . Beam dynamics of the superconducting wiggler on the SSRF storage ring. Chinese Physics C, 2016, 40(3): 037001. doi: 10.1088/1674-1137/40/3/037001
[3]	YANG Yong , LENG Yong-Bin , YAN Ying-Bing , CHEN Zhi-Chu . Injection performance evaluation for SSRF storage ring. Chinese Physics C, 2015, 39(9): 097003. doi: 10.1088/1674-1137/39/9/097003
[4]	FAN Hao , WU Cong-Feng , HE Duo-Hui . Calculations for shortening the bunch length in storage rings using a harmonic cavity. Chinese Physics C, 2014, 38(8): 087004. doi: 10.1088/1674-1137/38/8/087004
[5]	CHEN Jia , WANG Lin , LI Wei-Min , GAO Wei-Wei . Optimization of magnet sorting in a storage ring using genetic algorithms. Chinese Physics C, 2013, 37(12): 127004. doi: 10.1088/1674-1137/37/12/127004
[6]	XU Wei , HE Duo-Hui . Design and optimization of a longitudinal feedback kicker cavity for the HLS-Ⅱ storage ring. Chinese Physics C, 2013, 37(3): 037003. doi: 10.1088/1674-1137/37/3/037003
[7]	HOU Hong-Tao , LIU Jian-Fei , ZHAO Yu-Bin , ZHAO Shen-Jie , ZHANG Zhi-Gang , LUO Chen , FENG Zi-Qiang , MAO Dong-Qing , ZHENG Xiang , LI Zheng . Analysis of superconducting cavity quench events at SSRF. Chinese Physics C, 2011, 35(2): 179-182. doi: 10.1088/1674-1137/35/2/014
[8]	TIAN Shun-Qiang , ZHANG Wen-Zhi , LI Hao-Hu , ZHANG Man-Zhou , HOU Jie , ZHOU Xue-Mei , LIU Gui-Min . Linear optics calibration and nonlinear optimization during the commissioning of the SSRF storage ring. Chinese Physics C, 2009, 33(S2): 83-85. doi: 10.1088/1674-1137/33/S2/021
[9]	CHEN Jian-Hui , ZHANG Man-Zhou , ZHAO Zhen-Tang . Orbit response matrix analysis and lattice periodicity restoration of the SSRF storage ring. Chinese Physics C, 2009, 33(9): 785-788. doi: 10.1088/1674-1137/33/9/015
[10]	CHEN Jian-Hui , ZHAO Zhen-Tang . Preliminary application of turn-by-turn data analysis to the SSRF storage ring. Chinese Physics C, 2009, 33(7): 590-593. doi: 10.1088/1674-1137/33/7/016
[11]	HOU Jie , TIAN Shun-Qiang , ZHANG Man-Zhou , XU Yi , LIU Gui-Min . Studies of closed orbit correction and slow orbit feedback for the SSRF storage ring. Chinese Physics C, 2009, 33(2): 145-150. doi: 10.1088/1674-1137/33/2/013
[12]	ZHANG Wen-Zhi , TIAN Shun-Qiang , ZHANG Man-Zhou , HOU Jie , LI Hao-Hu , LIU Gui-Min , ZHAO Zhen-Tang . Design and first commissioning of a new mode with lower emittance in the SSRF storage ring. Chinese Physics C, 2009, 33(5): 397-400. doi: 10.1088/1674-1137/33/5/016
[13]	ZHOU Xue-Mei . Measurement of optics for the SSRF storage ring in commissioning. Chinese Physics C, 2009, 33(S2): 78-82. doi: 10.1088/1674-1137/33/S2/020
[14]	JIANG Bo-Cheng , CHEN Guang-Ling , CHEN Jian-Hui , LIU Gui-Min , ZHAO Zhen-Tang . Observation of beam instability in the SSRF storage ring. Chinese Physics C, 2009, 33(S2): 75-77. doi: 10.1088/1674-1137/33/S2/019
[15]	ZHANG Man-Zhou , LI Hao-Hu , JIANG Bo-Cheng , LIU Gui-Min , LI De-Ming . Beam based alignment of the SSRF storage ring. Chinese Physics C, 2009, 33(4): 301-305. doi: 10.1088/1674-1137/33/4/013
[16]	HUA Zheng-Dong , XU Xun-Jiang , FANG Ke-Ming , XU Jia-Qiang , WANG Jian-Hua , CAI Jun , LIU Xin . Calculation of Gas Bremsstrahlung Power from Straight Section of Storage Ring at SSRF. Chinese Physics C, 2008, 32(S1): 89-92.
[17]	TIAN Shun-Qiang , HOU Jie , CHEN Guang-Ling , LIU Gui-Min . New chromaticity compensation approach and dynamic aperture increase in the SSRF storage ring. Chinese Physics C, 2008, 32(8): 661-664. doi: 10.1088/1674-1137/32/8/015
[18]	CHEN Jian-Hui , ZHAO Zhen-Tang , DAI Zhi-Min , LIU Gui-Min . Study of closed orbit response to magnet vibrations at the SSRF storage ring. Chinese Physics C, 2008, 32(7): 589-592. doi: 10.1088/1674-1137/32/7/016
[19]	TIAN Shun-Qiang , HOU Jie , CHEN Guang-Ling , LIU Gui-Min . Analysis of sextupole effects on β function beating in the SSRF storage ring. Chinese Physics C, 2008, 32(7): 576-579. doi: 10.1088/1674-1137/32/7/013
[20]	MA Guang-Ming , ZHAO Zhen-Tang , LIU Jian-Fei . Design of a higher harmonic cavity for the SSRF storage ring. Chinese Physics C, 2008, 32(4): 275-279. doi: 10.1088/1674-1137/32/4/007

Access

Get Citation

MA Zhen-Yu, MA Guang-Ming, YU Hai-Bo, MAO Dong-Qing, FENG Zi-Qiang, HOU Hong-Tao and LIU Jian-Fei. Investigation on the fabrication of the 3rd harmonic superconducting cavity for the SSRF storage ring[J]. Chinese Physics C, 2009, 33(9): 792-797. doi: 10.1088/1674-1137/33/9/017

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2008-11-24
Revised: 2009-03-26

Article Metric

Article Views(2835)
PDF Downloads(620)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Investigation on the fabrication of the 3rd harmonic superconducting cavity for the SSRF storage ring

Corresponding author: LIU Jian-Fei,

Received Date: 2008-11-24

Accepted Date: 2009-03-26

Available Online: 2009-09-05

Abstract:

A third harmonic superconducting niobium cavity has been proposed for installation in the Shanghai Synchrotron Radiation Facility (SSRF) storage ring to improve the Touschek lifetime. In order to investigate the feasibility of the superconducting cavity fabrication indigenously and the possibility to master the fabrication techniques, cavities were fabricated from copper and niobium sheets by deep drawing and electron-beam welding, and a series of measurements, such as resonant frequency, shape dimensions and wall thickness, were carried out during this process. After analysis of various problems existing in the fabrication process, technique improvements were proposed, and finally the precise shape as designed and resonant frequency within 1.2 MHz were achieved for the new completed cavities. In addition, full annealing was finally proved to be a good cure for niobium sheets' tearing up during deep drawing. By fabricating niobium cavities successfully, some problems to the next step were cleared. This paper introduces the process of cavity fabrication and its technique improvements towards forming, and the initial vertical test result of niobium cavity is also presented.

HTML

Reference (1)

Investigation on the fabrication of the 3rd harmonic superconducting cavity for the SSRF storage ring

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article