End Chamfer Study and Field Measurements of the BEPCII Dipoles
- Resource Type
- Conference
- Authors
- Chen, W.; Shi, C.T.; Yin, B.G.; Cao, Z.; Yin, Z.S.
- Source
- Proceedings of the 2005 Particle Accelerator Conference Particle Accelerator Conference, 2005. PAC 2005. Proceedings of the. :919-921 2005
- Subject
- Fields, Waves and Electromagnetics
Engineered Materials, Dielectrics and Plasmas
Nuclear Engineering
Robotics and Control Systems
Magnetic field measurement
Magnets
Coils
Prototypes
Production
Counting circuits
Polynomials
Magnetic properties
Magnetic variables measurement
Transfer functions
- Language
- ISSN
- 1944-4680
2152-9582
The new BEPCII double ring will be added in the existing BEPC tunnel. There are more then 40 bending magnets named 67B in the new ring. The 67B is conventional ‘C’-type dipole magnet. The magnetic field properties are improved by the magnet end effect. The end effect have been studied and minimized by a proper end chamfer. Magnetic measurements of the prototype and productions are carried out using the translating integral long coil. The developing process of pole end chamfers and the measurement results of the 67B prototype and batch production are described in the paper.