Spatial and Temporal Behavior of Magnetic Field Distribution Due to Shielding Current in HTS Coil for Cyclotron Application
Spatial and Temporal Behavior of Magnetic Field Distribution Due to Shielding Current in HTS Coil for Cyclotron Application
复制标题
回旋加速器应用高温超导线圈中屏蔽电流引起的磁场分布的时空行为
DOI：
10.1109/tasc.2012.2234813
复制
发表时间：
2013
影响因子：
1.8
通讯作者：
A (以下2名)
中科院分区：
文献类型：
--
作者：
Ueda;H、Fukuda;M、Hatanaka;K、Ishiyama;A (以下2名)
我们打算利用高温超导（HTS）磁体技术开发并获得紧凑、高效和高性能的回旋加速器。在回旋加速器应用中，高温超导线圈在空间和时间上都需要具有高精度的等轴场和方位变化场的磁场分布。在用高温超导带材缠绕的线圈中，磁场的径向分量在高温超导带材中感应出大的屏蔽电流。由屏蔽电流产生的磁场在以下问题中影响回旋加速器应用中的磁场分布：（1）由屏蔽电流引起的场减小，（2）场分布的准确性，（3）随时间变化的屏蔽电流的时间稳定性，以及（4）充电和放电重复后的场重复性。这些效应在回旋加速器应用中是非常关键的。我们开发了一种新的数值模拟的基础上有限元法，边界积分方程，快速多极子方法。我们研究了高温超导回旋加速器应用中高温超导线圈中屏蔽电流引起的磁场的空间和时间行为。
We intend to develop and obtain a compact, high-efficiency and high-performance cyclotron using the high-temperature superconducting (HTS) magnet technology. In cyclotron applications, a high-accuracy magnetic field distribution with an isochronous field and an azimuthally varying field is spatially and temporally required for an HTS coil. In coils wound with HTS tapes, large shielding currents are induced in the HTS tape by the radial component of the magnetic field. The magnetic field generated by the shielding current affects the magnetic field distribution in the cyclotron application in the following issues: (1) field reduction by the shielding current, (2) accuracy of the field distribution, (3) temporal stability of the time-dependent shielding currents, and (4) field repeatability after charge and discharge repetitions. These effects are very critical in cyclotron applications. We developed a novel numerical simulation based on the finite element method, boundary integral equation, and fast multipole method. We investigated the spatial and temporal behavior of the magnetic field attributed to the shielding current in the HTS coil for the HTS cyclotron application.
混合有限元-边界元法结合快速多极子法对涡流问题进行大规模分析
影响因子：
2.1
作者：
Y. Takahashi;S. Wakao
通讯作者：
S. Wakao
下一代高温超导回旋加速器的概念设计
影响因子：
1.8
作者：
Ueda;H、Fukuda;M、Hatanaka;K Ishiyama;A、(以下7名)
通讯作者：
A、(以下7名)
使用线搜索加速的牛顿-拉夫森方法 - 能量泛函和残差最小化之间的比较 - （日语）
DOI：
--
发表时间：
2004
期刊：
The Papers of Joint Technical Meeting on Static Apparatus and Rotating Machinery of IEE Japan no.SA-04-69 & RM-04-93
影响因子：
--
作者：
K.Fujiwara;Y.Okamoto;A.Kameari;A.Ahagon
通讯作者：
A.Ahagon