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ST392 - Optimization of Detection Unit of AC/DC High-Tc SQUID Magnetometer for Evaluation of Magnetic Nanoparticles in Solution

Optimization of Detection Unit of AC/DC High-Tc SQUID Magnetometer for Evaluation of Magnetic Nanoparticles in Solution
 
Mawardi Saari, Yuya Tsukamoto, Yuichi Ishihara, Toki Kusaka, Koji Morita,
Kenji Sakai, Toshihiko Kiwa, Member, IEEE, and Keiji Tsukada, Member, IEEE
 
Graduate School of Natural Science and Technology, Okayama University,
Okayama 700 8530, Japan
 
Abstract — We have optimized the detection unit of the previously developed AC/DC high-Tc SQUID magnetometer and evaluated the magnetic properties of magnetic nanoparticles in solution. A compensation coil technique was used in the fabrication of the detection coil to reduce the interference of the excitation magnetic field. This technique had resulted in a single detection coil using one SQUID for AC and DC magnetization measurement functions and reduced the spatial limitation of the sample shape. The small compensation coil was manually tuned to reduce the interference. Improved sensitivity for evaluation of magnetic nanoparticles can be expected using this technique.
 
IEEE/CSC & ESAS SUPERCONDUCTIVITY NEWS FORUM (global edition), October 2014 (Preview 1).
Reference No. ST392; Category 4. ASC 2014 presentation and extended abstract 2EPo2C-10;
2nd Prize in Best Student Paper Contest, Electronics. Not submitted to IEEE Trans. Appl. Supercond..