China Institute of Atomic Energy publishes article on field mapper for superconducting cyclotron

A recent article in the IEEE Transactions on Applied Superconductivity describes the use of Metrolab's Fast Digital IntegratorThe part of a fluxmeter that integrates the voltage... FDI2056 and PrecisionPrecision is how closely multiple measurements will be clustered. Also called reproducibility or repeatability. In everyday speech, often confused with... TeslameterSee magnetometer. PT2026 to map a superconducting cyclotronA compact particle accelerator that allows the particle beam to spiral out as it gains energy....:

M. Li et al., "Field Mapping System Design for the Superconducting Cyclotron CYCIAE-230," in IEEE Transactions on Applied Superconductivity, vol. 28, no. 3, pp. 1-4, April 2018.

A superconducting cyclotronA compact particle accelerator that allows the particle beam to spiral out as it gains energy.... named CYCIAE-230 is designed and under construction at the China Institute of Atomic Energy, Beijing, China, to provide a 230-MeV proton beam for cancer therapy. The cryogenic system has been completed and the machining of the magnet will be finished soon. The shimmingIn magnet production, the process of making a magnetic field more homogeneous, by placing pieces of iron (shims) in the... procedure will be performed to obtain the final isochronous field, which requires the field measurement precisionPrecision is how closely multiple measurements will be clustered. Also called reproducibility or repeatability. In everyday speech, often confused with... to be 5 × 10^-5. A search-coil sensor based mappingThe process of measuring magnetic field intensity at many different points, in order to understand the structure of the field... system was developed to satisfy the measurement accuracyAccuracy is how close a measure conforms to reality. Even if our NMR Teslameter displays 9 digits, we claim 5... requirements, including a nuclear magnetic resonance probeThe actual sensor that is placed in the magnetic field. The NMR probe contains the NMR sample; the Hall probe... to precisely measure the field at the cyclotronA compact particle accelerator that allows the particle beam to spiral out as it gains energy.... center and a moving searchBefore being able to measure, an NMR teslameter has to search the range of the probe to find the NMR... coil to obtain the field differences. Moreover, a Hall probeThe actual sensor that is placed in the magnetic field. The NMR probe contains the NMR sample; the Hall probe... is integrated in the system to verify the field data. The system allows the probeThe actual sensor that is placed in the magnetic field. The NMR probe contains the NMR sample; the Hall probe... motion and data acquisition to be performed automatically. In this paper, the field mappingThe process of measuring magnetic field intensity at many different points, in order to understand the structure of the field... requirements are listed, the design and calibrationDuring calibration, the instrument reading is compared to one or more references to verify its accuracy. The references themselves need... of the coil is described, and the field mappingThe process of measuring magnetic field intensity at many different points, in order to understand the structure of the field... system, including mechanical structure and controlAn NMR-controlled field is one whose strength is monitored by NMR. As opposed to NMR-regulated.... system, is presented in detail.

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