325MHz超导腔输入耦合器镀铜层厚度的实验研究

通过对工作在325 MHz、镀铜厚度分别为10,20,30 μm的耦合器外导体进行高功率测试,研究了超导腔输入耦合器外导体内壁镀铜层厚度与漏热的依赖关系,目的在于寻找最优化的铜层厚度来降低超导腔输入耦合器的低温漏热。实验结果表明,20 μm铜层的耦合器具有较低的动态损耗。综合考虑静态损耗与动态损耗,则20 μm铜层厚度为最优化的铜层厚度。

Abstract

This article studies the relationship between the copper layer thickness of the outer conductor of superconducting cavity input coupler and the heat leak.We compared copper coatings of 10,20,30 μm respectively of 325 MHz coupler through high power test and aimed to find the optimum thickness of the copper plating layer in order to decrease the cryogenic heat load . The experimental results show that 20 μm layer has lower dynamic heat leak. Considering both static heat leak and dynamic heat leak, the 20 μm thickness of copper layer is the optimum one.

参考文献

[1] Xu Wencan, Altinbas Z, Belomestnykh S, et al. Design, simulations, and conditioning of 500 kW fundamental power couplers for a superconducting RF gun[J]. Physical Review Special Topics-Accelerators and Beams, 2012, 15: 072001.

[2] Jenhani H, Bosland P, Carbonnier P, et al. Input power coupler for the IFMIF SRF Linac[C]//Proc of IPAC2012. 2012: 20-25.

[3] Pei Shilun, Adolphsen C E, Li Zenghai, et al. RF thermal and new cold part design studies on a TTF-Ⅲ input coupler for Project-X[J]. Chinese Physics C, 2012, 36(2): 173-178.

[4] Kelly M P, Kutsaev S V, Ostroumov P N, et al. Design and construction of a high-power RF coupler for PXIE[C]//Proc of IPAC2012. 2012.

[5] Huang Tongming, Pan Weimin, Ma Qiang, et al. High power input coupler development for BEPCII 500 MHz superconducting cavity[J]. Nucl Instrum Meth A, 2010, 623(3): 895-902.

[6] Veshcherevich V, Belomestnykh S. Input Coupler for Cornell ERL main linac[C]//Proc of the SRF 2013 Conference. 2013.

[7] Champion M. Input coupler and windows for TESLA[C]//Proceedings of the 6th Workshop on RF Superconductivity, CEBAF. 1993: 406-425.

[8] Kazakov S, Champion M S, Yakovlev V P, et al. High power couplers for Project X[C]//Proc of PAC. 2011.

[9] Stirbet M, Popielarski J, Grimm T L, et al. RF conditioning and testing of fundamental power couplers for the RIA project[C]//Proceedings of SRF 2003. 2003:682-684.

[10] Campisi I E, Daly E F, Henry J E, et al. The fundamental power coupler prototype for the Spallation Neutron Source(SNS)superconducting cavities[C]//Proceedings of the 2001 IEEE Conference on Particle Accelerator. 2001: 1140-1142.

[11] 黄彤明,超导腔高功率输入耦合器的研究[D].北京:中国科学院大学,2009:14-22.(Huang Tongming. Study of high power input coupler for superconducting cavity[D]. Beijing: Graduate University of Chinese Academy of Sciences, 2009: 14-22)

[12] 闫芳,李智慧,唐靖宇. 中国加速器驱动次临界系统主加速器初步物理设计[J].强激光与粒子束, 2013,25(7): 1783-1787.(Yan Fang, Li Zhihui, Tang Jingyu. Preliminary physics design of China accelerator driven-sub critical system main linac. High Power Laser and Particle Beams, 2013, 25(7):1783-1787)

[13] Fouaidy M, Hammoudi N. RRR of copper coating and low temperature electrical resistivity of material for TTF couplers[J]. Physica C: Superconductivity, 2006, 441(1): 137-144.

[14] Fouaidy M, Hammoudi N. RRR of copper coating and low temperature electrical resistivity of material for TTF couplers[J]. Physica C: Superconductivity, 2006, 441(1): 137-144.

[15] Chen Xu, Meng Fanbo, Ma Qiang, et al. Coupler conditioning and high power testing of ADS spoke cavity[J]. Chinese Physics C, 2014, 38(2): 67-69.

陈旭, 谷魁祥, 彭应华, 马强, 黄彤明, 林海英, 潘卫民. 325MHz超导腔输入耦合器镀铜层厚度的实验研究[J]. 强激光与粒子束, 2014, 26(12): 125103. Chen Xu, Gu Kuixiang, Peng Yinghua, Ma Qiang, Huang Tongming, Lin Haiying, Pan Weimin. Copper layer thickness for 325 MHz superconducting cavity input couplers[J]. High Power Laser and Particle Beams, 2014, 26(12): 125103.

325MHz超导腔输入耦合器镀铜层厚度的实验研究

关于本站 Cookie 的使用提示

全站搜索

325MHz超导腔输入耦合器镀铜层厚度的实验研究

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索