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Development of Non Contraction High Current Superconducting Cable for Particle Accelerator

粒子加速器用非收缩大电流超导电缆的研制

基本信息

批准号：
14350043
负责人：
WAKE Masayoshi
金额：
$ 5.82万
依托单位：
KEK High Energy Aecelerator Research Organization (2004)The High Energy Accelerator Research Organization (2002-2003)
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2004
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14350043/
关键词：
accelerator magnet force-free superconductor transmission line high current VLHC pipetron スーパーバンチ

项目摘要

The development of the conductor and the related equipments was performed aiming at the construction of "pipetron", a new concept of an accelerator with the force-free superconducting magnet system. Since accelerator needs to be very high intensity, this research was conducted with collaborative relations with the "superbunch" project at KEK. The conductor was made of a braid of 64 NbTi strands with 256 filaments. The outer layer and inner layer were reinforced by invar pipes. The assembly of the conductor was made by using both extrusion and intrusion method on a draw bench. As a result, the fabrication of the high current non-contraction cable was found successful. The pre-testing of the cable was made by a newly developed cryostat to measure the thermal contraction of the cable. The measured results confirmed the very small thermal contraction compared with the usual superconductors. Using this conductor structure, a model magnet testing was performed at Fermi National Accelerator L … More aboratory as a collaboration project. After the cool down of the system, the model magnet reached to 75kA of designed current. Then, the magnet was ramped up to make quench at the highest current. The quench current was 104kA. The Japanese model tested together with the Fermilab model was only 10cm in length but the asymmetric structure of KEK magnet was also verified in this test. This result will drastically bring down the construction and operation cost of superconducting magnet for high-energy accelerators. Applications such as the conversion of the KEK proton synchrotron are now proposed. The realistic construction of the future magnet system will require a very long cooling line and the use of superconductors with higher critical temperature will be necessary. A new method of Nb3Sn conductor called "DT (Distrbuted Tin)" was invented in this research. DT conductor carried more than 2kA/mm2, twice current of ordinary superconductor, at 12T. In summary this research was very successful not only to develop the conductor necessary for the construction of future high-energy accelerators but also to created a wide range of applications in the future. Less

导体和相关设备的开发是针对“移液管”的建设进行的，“移液管”是一种具有无力超导磁体系统的加速器新概念。由于加速器需要非常高的强度，这项研究是在与KEK的“超级聚束”项目合作的情况下进行的。导体由具有256根细丝的64根NbTi股线的编织物制成。外层和内层均采用殷钢管增强。在拉拔机上采用挤压和压入两种方法进行了导线的组装。结果表明，大电流无收缩电缆的制造是成功的。采用新研制的低温恒温器对电缆进行了预测试，以测量电缆的热收缩。测量结果证实了与通常的超导体相比，非常小的热收缩。使用这种导体结构，在费米国家加速器L ...更多信息实验室作为合作项目。系统冷却后，模型磁体达到设计电流75 kA。然后，磁体斜升以在最高电流下进行失超。失超电流为104 kA。与费米实验室模型一起测试的日本模型只有10厘米长，但KEK磁体的非对称结构也在这次测试中得到了验证。这一结果将大大降低高能加速器超导磁体的建造和运行成本。现在提出了诸如KEK质子同步加速器的转换等应用。未来磁体系统的实际构造将需要很长的冷却线，并且必须使用具有更高临界温度的超导体。本研究提出了一种制备Nb_3Sn导体的新方法--DT（Distributed Tin）法。DT导体在12 T时的载流率超过2kA/mm ~ 2，是普通超导体的2倍。总之，这项研究非常成功，不仅开发了建造未来高能加速器所需的导体，而且在未来创造了广泛的应用。少

项目成果

期刊论文数量（70）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Configuration of High Current Density Nb3Sn Conductors

高电流密度 Nb3Sn 导体的配置

DOI：
发表时间：
2004
期刊：
proc.Int'l Workshop on Progress of Nb-Based Super conductors(Ed.Kiyoshi Inoue) 150
影响因子：
0
作者：
K.Yamazaki;M.Furutochi;R.Fukasaku;黒川隆志;Masayoshi Wake
通讯作者：
Masayoshi Wake

Characteristics of Distributed Tin Nb3Sn Conductor

分布式锡Nb3Sn导体的特性

DOI：
发表时间：
2004
期刊：
Advances in Cryogenic Engineering ICMC 150
影响因子：
0
作者：
K.Egawa;Y.Kubo;T.Nagai;T.Sone;K.Hiramoto;O.Taguchi;H.Kitakoga;M.Wake;T.Shintomi;S.Nakayama
通讯作者：
S.Nakayama

電池による大電流電源

使用电池的大电流电源