Rotating-Coil Measurement System for Small-Bore-Diameter Magnet Characterization.

Area of Science:

• Physics
• Engineering
• Materials Science

Background:

• Rotating-coil measurement systems are essential for characterizing particle accelerator magnets.
• Small bore diameters in magnets present unique design challenges for measurement transducers.

Purpose of the Study:

• To present a novel rotating-coil measurement system for complete characterization of small-bore quadrupole magnets (26 mm).
• To address the design challenges of high-aspect-ratio PCB magnetometers within confined spaces.

Main Methods:

• Development of a novel mechanical design incorporating a commercial carbon fiber tube for a high-aspect-ratio PCB magnetometer.
• Utilization of standard, commercially available components with simplified control and post-processing software.
• Cross-calibration of the system against a stretched-wire system and another rotating-coil system.

Main Results:

• Successful characterization of quadrupole magnets with a 45 mm inner bore diameter was achieved.
• The system demonstrates precision suitable for detailed multipolar field measurements.
• The novel PCB magnetometer design accommodates a 30% higher aspect ratio than state-of-the-art transducers.

Conclusions:

• The developed rotating-coil system offers a viable solution for precise characterization of small-bore quadrupole magnets.
• The innovative mechanical and transducer design overcomes limitations of previous systems.
• The use of standard components and simplified software enhances accessibility and applicability.