Magnetic Field Mapping in the BESIII Solenoid

Author

Yan, Jing ; Huang, Shike ; Hou, Zhilong ; Liu, Zhongxiu ; Zhao, Ling ; Zhu, Zian

Author_Institution

Inst. of High Energy Phys., Chinese Acad. of Sci., Beijing, China

Volume

20

Issue

3

fYear

2010

fDate

6/1/2010 12:00:00 AM

Firstpage

324

Lastpage

327

Abstract

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 , and . 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.

Keywords

magnetic fields; particle calorimetry; position sensitive particle detectors; proportional counters; solenoids; superconducting magnets; 3D mapping device; 3D probe; BESIII solenoid; Beijing Electron Positron Collider II; Beijing Spectrometer III; accelerator interaction region; drift chamber; magnetic field mapping; superconducting solenoid magnet; trigonometric-Bessel term; BESIII; field mapping; superconducting magnets;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2010.2041437

Filename

5443678