The optimal design of a 7 T highly homogeneous superconducting magnet for a Penning trap

WU Wei; HE Yuan; MA Li-Zhen; HUANG Wen-Xue; XIA Jia-Wen

doi:10.1088/1674-1137/34/7/009

Chinese Physics C> 2010, Vol. 34> Issue(7) : 978-982 DOI: 10.1088/1674-1137/34/7/009

The optimal design of a 7 T highly homogeneous superconducting magnet for a Penning trap

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A Penning trap system called Lanzhou Penning Trap (LPT) is now being developed for precise mass measurements at the Institute of Modern Physics (IMP). One of the key components is a 7 T actively shielded superconducting magnet with a clear warm bore of 156 mm. The required field homogeneity is 3×10^－7 over two 1 cubic centimeter volumes lying 220 mm apart along the magnet axis. We introduce a two-step method which combines linear programming and a nonlinear optimization algorithm for designing the multi-section superconducting magnet. This method is fast and flexible for handling arbitrary shaped homogeneous volumes and coils. With the help of this method an optimal design for the LPT superconducting magnet has been obtained.

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WU Wei, HE Yuan, MA Li-Zhen, HUANG Wen-Xue and XIA Jia-Wen. The optimal design of a 7 T highly homogeneous superconducting magnet for a Penning trap[J]. Chinese Physics C, 2010, 34(7): 978-982. doi: 10.1088/1674-1137/34/7/009

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Received: 2009-07-07
Revised: 2009-09-16

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

The optimal design of a 7 T highly homogeneous superconducting magnet for a Penning trap

Corresponding author: WU Wei,

Received Date: 2009-07-07

Accepted Date: 2009-09-16

Available Online: 2010-07-05

Abstract: A Penning trap system called Lanzhou Penning Trap (LPT) is now being developed for precise mass measurements at the Institute of Modern Physics (IMP). One of the key components is a 7 T actively shielded superconducting magnet with a clear warm bore of 156 mm. The required field homogeneity is 3×10^－7 over two 1 cubic centimeter volumes lying 220 mm apart along the magnet axis. We introduce a two-step method which combines linear programming and a nonlinear optimization algorithm for designing the multi-section superconducting magnet. This method is fast and flexible for handling arbitrary shaped homogeneous volumes and coils. With the help of this method an optimal design for the LPT superconducting magnet has been obtained.

The optimal design of a 7 T highly homogeneous superconducting magnet for a Penning trap

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通讯作者: 陈斌, bchen63@163.com

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The optimal design of a 7 T highly homogeneous superconducting magnet for a Penning trap

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