Magnetic Field Mapping in the BESIII Solenoid

被引：5

作者：

Yan, Jing ^{[1
]}

Huang, Shike ^{[1
]}

Hou, Zhilong ^{[1
]}

Liu, Zhongxiu ^{[1
]}

Zhao, Ling ^{[1
]}

Zhu, Zian ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2010年 / 20卷 / 03期

关键词：

BESIII; field mapping; superconducting magnets;

D O I：

10.1109/TASC.2010.2041437

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The Beijing Spectrometer III (BESIII) superconducting solenoid magnet, which is running in the Beijing Electron Positron Collider II (BEPC-II), is an important part of BESIII and provides a 1 Tesla field in the main drift chamber. A 3-D mapping device with three 3-D probes was fabricated to measure the field components of B(z), B(r) and B(Phi). The mapping of the magnetic field of the BESIII superconducting solenoid magnet is presented, with the accelerator interaction region magnets located inside the BESIII solenoid excited to different current values. A set of polynomials, and a few trigonometric-Bessel terms are used to fit the data. The measurements and the functional model agree to 5 Gauss within the main drift chamber tracking volume at nominal field values.

引用

页码：324 / 327

页数：4

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