Development of a Digital Miniature Cathode Ray Magnetometer

Our study presents a novel Digital Miniature Cathode Ray Magnetometer engineered to excel in key parameters crucial for modern applications, notably the characterization of insertion devices in light sources. Employing a charged particle beam and digital imaging, this magnetometer overcomes limitations such as accuracy, temperature sensitivity, and spatial resolution. The magnetometer’s core operation involves a low-energy electron beam interacting with a scintillator screen, captured by a CMOS sensor for precise magnetic field mapping. Optimization efforts focus on parameters tailored for specific applications, with particular attention to spatial resolution, sensitivity, and temperature range. Prototype testing demonstrates its viability, albeit with ongoing improvements required to meet stringent sensitivity targets. Strategies for enhancement include advanced signal processing techniques, exploration of alternative scintillator materials, and integration of electrostatic deflecting plates. Future developments, such as custom CMOS imagers and optical fiber bundles, promise expanded applications in extreme environments and enhanced robustness.Our research advances magnetic measurement technology, offering promising avenues for scientific, medical, and industrial domains. The Digital Miniature Cathode Ray Magnetometer stands as a testament to ongoing innovation in measurement technologies, poised to catalyze progress across various fields.