Paper |
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TUPMB010 |
Magnetic Center Position and Tilt Angle of Quadrupole by Vibration Wire Method |
1127 |
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- L. Wu, X. Guan, X.W. Wang, S.X. Zheng
TUB, Beijing, People's Republic of China
- B.C. Wang
NINT, Xi'an, People's Republic of China
- G. Xialing
CIAE, Beijing, People's Republic of China
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Vibrating wire method and device are described to locate the magnetic center of a Quadrupole theoretically and experimentally. With rotating 180 degrees method, it is convenience to measure the position magnetic center from mechanical center. Tilt angle can also be measured because tilt of magnetic axis will cause the difference of measured magnetic center in different harmonic driving current frequency. Errors analysis shows that tilt of Quadrupole will cause the main error and improved device is described to adjust and measure the tilt angle to fix the errors caused by tilt.
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