High precision mapper for cyclotron magnet

In the paper the basic solutions of high-precision multichannel mapper construction for magnetic field measurement, in particular, for mapping magnetic fields of cyclotron magnets are presented. The basic conception of the solution suggested is that a multichannel mapper, that uses Hall generator array as a primary transducer and nuclear magnetic resonance probe are integrated into measurement system for mapping and periodical calibration. Furthermore, the calibration is performed directly in the gap of the cyclotron magnet under investigation. The mapper has 48 channels for magnetic field measurement and provides measurement accuracy of the order of 0.01%.