Research and Development of High Field Superconducting Magnets for High Energy Accelerator

高能加速器用高场超导磁体的研究与开发

• 批准号: 11694106
• 负责人: SHINTOMI Takakazu
• 金额: $ 5.12万
• 依托单位: High Energy Accelerator Research Organization
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B).
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11694106/
• 关键词: LHC; accelerator; superconducting magnet; superconductor; superconducting quadrupole magnet; Nb_3Al導体; 四極電磁石; 超流動ヘリウム; Nb-Ti; 高磁場

The LHC, which is under construction at CERN for search of "Higgs" particle and will be served for physics experiment from 2006, is a 14 TeV proton-proton collider composed of thousands superconducting magnets. Japanese Government officially decided to contribute for the LHC collaboration in 1995. In this collaboration, KEK on behalf of the Government will develop and fabricate 16 supreconducting low-beta focusing quadrupole magnets which will be installed at the closest beam colliding points for experiments.Following the basic research and development for the magnets with the Grant-in-Aid for Scientific Research for three years from 1995, we have performed more practical and technical R＆D with model quadrupole magnets with help of the Grand-in-Aid for Scientific Research (B) in 1999 and 2000. Moreover, we have carried out the basic research and development of more advanced superconductor which will be powerful in use for the improved final focusing magnets for the colliding points.The superconducting quadrupole magnets require not only good performance of high precision and high field but also stable operation under severe condition with scattered beams from the colliding points. Therefore, in consideration of reliability at the operation these magnets should have performance as a 10 T superconducting magnet. In these conditions, we have carried out the following researches.*Accumulation of data for development of the magnets using model magnets.*Basic research and development of the advanced superconductor for accelerator magnet use.According to these R&D, the followings are developed.*Establishment of the technical means for the 10 T class high field accelerator magnets.*Prospect of the advanced superconductor for the future improved accelerator magnets.

欧洲核子研究中心正在建造的大型强子对撞机，用于寻找“希格斯”粒子，将从2006年开始用于物理实验，它是一个由数千个超导磁体组成的14 TeV质子-质子对撞机。日本政府于1995年正式决定为LHC合作做出贡献。在这次合作中，KEK将代表政府开发和制造16个超导低β聚焦四极磁体，并将其安装在最近的束流碰撞点进行实验。继1995年起三年的科学研究援助磁体的基础研究和开发之后，我们进行了更多实用和技术性的研发 1999年和2000年，我们在科学研究大纲（B）的帮助下，开展了模型四极磁体的研究和开发。此外，我们还进行了更先进的超导体的基础研究和开发，这将有力地用于改进碰撞点最终聚焦磁体。超导四极磁体不仅需要高精度和高磁场的良好性能，而且需要在碰撞点散射光束的恶劣条件下稳定运行。因此，考虑到操作的可靠性，这些磁体应具有10T超导磁体的性能。在这些条件下，我们开展了以下研究工作：*利用模型磁体开发磁体的数据积累。*加速器磁体用先进超导体的基础研究和开发。根据这些研究开发，进行了以下研究。*10T级高磁场加速器磁体的技术手段的建立。*未来改进加速器磁体的先进超导体的展望。

项目成果

N.Ohuchi, et al.: "Magnetic Field Measurement of a 1-m Long Model Quadrupole Magnet for the LHC Interaction Region"IEEE Trans.on Applied Superconductivity. 9. 451-454 (1999)

N.Ohuchi 等人：“LHC 相互作用区域的 1 米长模型四极磁铁的磁场测量”IEEE Trans.on Applied Superconductivity。

T.Shimada, et al.: "Development of Nb-Ti-Ta Ternary Alloy Multifilamentary Superconductig Wire"IEEE Trans.on Applied Superconductivity. 9. 1731-1734 (1999)

T.Shimada 等人：“Nb-Ti-Ta 三元合金多丝超导线的开发”IEEE Trans.on Applied Superconductivity。

K.Tsuchiya, et al.: "Magnetic Design of a Low-Beta Quadrupole Magnet for the LHC Interaction Regions"IEEE Trans.on Applied Superconductivity. 10-1. 135-138 (2000)

K.Tsuchiya 等人：“LHC 相互作用区域的低 Beta 四极磁体的磁性设计”IEEE Trans.on 应用超导。

N.Ohuchi, et al.: "Field Measurements of 1-m Model Quadrupole Magnets for the LHC-IR"Proc.of European Particle Accelerator Conference. 373-375 (2000)

N.Ohuchi 等人：“LHC-IR 的 1 米模型四极磁体的现场测量”欧洲粒子加速器会议论文集。

E.E.Burkhardt, A.Yamamoto, T.Nakamoto, et al.: "Quench Protection Heater Studies for the 1-m Model Magnets for the LHC Low-b Quadrupoles"IEEE Trans.on Appl.Superconductivity. Vol.10. 681-684 (2000)

E.E.Burkhardt、A.Yamamoto、T.Nakamoto 等人：“LHC 低 b 四极子的 1-m 模型磁体的淬火保护加热器研究”IEEE Trans.on Appl.Superconductivity。