JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
TY - CONF AU - Chen, X.Y. AU - An, S. AU - Bian, T.J. AU - Ling, L. AU - Lu, J.R. AU - Wang, F. ED - Schaa, Volker RW ED - Huang, Wenhui ED - Yan, Xueqing ED - Tang, Chuanxiang ED - Li, Lu TI - Calibration Experiment of Equivalent Area of Induction Coil for Magnetic Field Measurement of Superconducting Cyclotron J2 - Proc. of SAP2023, Xichang, China, 10-12 July 2023 CY - Xichang, China T2 - Symposium on Accelerator Physics T3 - 14 LA - english AB - China Institute of Atomic Energy’s 250MeV superconducting cyclotron (CYCIAE-250) uses the induction coil method to measure the magnetic field in its airgap. To ensure the precision of magnetic field measurement, area of the induction coil needs to be calibrated. This paper designs a set of coil calibration technique based on flipping coil method. The uniform magnetic field needed for calibration is provided by a permanent magnet with good static performance, its field is measured through high-precision nuclear magnetic resonance(NMR) probe. Then the induction coil will then be installed at the same position of the NMR probe. During the calibration process, induction coil is rotated 180 degrees and magnetic flux through it will be recorded by a high-speed digital integrator. Corresponding equipment is also designed to finish this task. This Paper describes this magnetic field measurement method, corresponding magnetic measurement equipment, calibration process of the induction coil and calibrated area of the coil. PB - JACoW Publishing CP - Geneva, Switzerland SP - 120 EP - 122 KW - induction KW - cyclotron KW - experiment KW - permanent-magnet KW - proton DA - 2024/11 PY - 2024 SN - 978-3-95450-265-3 DO - doi:10.18429/JACoW-SAP2023-TUPB017 UR - https://jacow.org/sap2023/papers/tupb017.pdf ER -