期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

改进铜铌溅射型QWR超导腔性能的探讨 被引量：4

Studies on the improvement of niobium-sputtered quarter wave resonator superconducting cavity
原文传递
导出
摘要 通过直流偏压二级溅射方法 ,在无氧铜腔体表面溅射一层铌膜 ,研制了铜铌溅射型射频超导 1 4波长谐振腔(quarterwaveresonator,QWR) ,该腔主要用于重离子的加速 ,是北京放射性核束装置中后加速部分的预研项目 .目前国际上很多实验室都在研究进一步提高铜铌溅射型QWR超导腔的性能 ,通过多种方法的实验研究 ,发现在无氧铜衬底与铌膜之间加入一层氮化铌 (NbN)薄膜 ,可以使得表面铌膜的超导温度转变点由原来的 8 8K提高到了接近9 6K ,该方法有可能成为提高QWR腔加速性能的重要途径 。 Quarter wave resonator (QWR) is the best choice of the acceleration cavity for heavy ion superconducting accelerator. Using do bias-voltage sputtering system, we can sputter niobium films of several microns on the oxygen-free high-conductivity copper WHO substrate. Good superconducting properties and acceleration properties of the cavity can be obtained. But compared with niobium cavity, it has very low Q and E-acc. Niobium nitride (NbN) is a good superconductor, and it has a higher superconducting transition temperature (T-c) than pure niobium. Through experiments, we find that the T-c transition point of niobium films rises to about 9:6K by using NbN interlayer between OFHC substrate and niobium films. So using this method can improve the superconducting properties and thus the acceleration properties.
作者 孟铁军 赵夔 谢大弢 张保澄 王莉芳 朱凤 储祥蔷 陈佳洱
机构地区 北京大学物理学院重离子物理研究所
出处 《物理学报》 SCIE EI CAS CSCD 北大核心 2003年第6期1515-1519,共5页 Acta Physica Sinica
基金 国家自然科学基金 (批准号 :10 175 0 0 6)资助的课题~~
关键词 铜铌溅射型QWR超导腔 直流偏压二级溅射 谐振腔 氮化铌薄膜 超导温度 加速性能 加速器 sputtering QWR superconducting cavity niobium nitride (NbN) superconducting transition temperature
分类号 O511.9 [理学—低温物理]
  • 相关文献

参考文献21

  • 1Benvenuti C et al 1987 Proc. of the 3rd workshop on RF supercon-ductivity(USA) p445.
  • 2Lobanov N R and Weisser D C 1997 Proc. of the 8th Workshop on RF Superconductivity(Italy) p1125.
  • 3Durand C et al 1995 IEEE Trans. Appl. Supercond. 5 1107.
  • 4Hao J K, Quan S W, Zhao K et al 2001 IEEE Proc. of the PAC 2001(Chicago:IEEE Operation Center) p1169.
  • 5Kulik I I et al 1993 INFN-LNL Annual Report p93.
  • 6Bloess D 1996 Vacuum 47 597.
  • 7Window B 1993 J. Vac. Sd. Technol. A 11 1522.
  • 8Darriulat P et al 1995 Proc. of the 7th Workshop on RF Supercon-ductivity(Gif sur Yvette, France) p467.
  • 9Russo R and Sgobba S 1997 Proc. of the 8th Workshop on RF Superconductivity(Padova, Italy) p890.
  • 10Vee S C et al 1999 Solid-State Electronics 43 1045.

同被引文献23

  • 1黄海,徐明.SP—100太空反应堆动力系统发展展望[J].国外核动力,1995,16(2):12-16. 被引量：1
  • 2Saito K. Behavior of Air Exposure of Medium β(=0.45) Niobium SC Cavity, in Proceedings of the 10th Workshop on RF Superconductivity, Tsukuba, Japan, 2001. 588.
  • 3Saito K, Fujino T et al. Research and Development of Nb/Cu Clad Seamless Cavities at KEK, in Proceedings of the 10th Workshop on RF Superconductivity, Tsukuba, Japan, 2001. 524.
  • 4Knau H, Welti A et al. Sputtered NbN-Films for RF Applications, in Proceedings of Physica C: Superconductivity, Volume 182, Issues 1-3, 20 October, 1991. 39.
  • 5太刀川恭治 户叶一正.超导-高技术的突破口[M].北京:化学工业出版社,1992.40.
  • 6TESLA Collaboration. Operating Experience with Superconducting Cavities at the TESLA Test Facility, in Proceedings of the 10th Workshop on RF Superconductivity, Tsukuba, Japan, 2001. 212.
  • 7Lutz Lilje. High Accelerating Gradients in 1.3 GHz Niobium Cavities, in Proceedings of the 10th Workshop on RF Superconductivity, Tsukuba, Japan, 2001. 287.
  • 8Hao Jian-kui et al. Recent Researches on RF Superconductivity in Peking University, in Proceedings of the 10th Workshop on RF Superconductivity, Tsukuba, Japan, 2001. 91.
  • 9Stark S et al. Niobium Sputtered-coated QWRs, in Proceedings of the 8th Workshop on RF Superconductivity, Padova, Italy, 1997. 1156.
  • 10G.Standford,R.E.Laxdal,etal.Design ofthe Medium Beta Cryomodule for the ISAC-Ⅱ Superconducting Heavy Ion Accelerator[J].Proceedings of the CEC-ICMC,Sept,2003,22-26.

引证文献4

二级引证文献6

物理学报
2003年 第6期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部