Speaker
Xiaozhe Zhu
(Graduate Student)
Description
Achieving nT/m-level magnetic-field uniformity and isolating the time-dependent field noise inside the measurement cells of the nEDM@SNS experiment requires additional magnetic shielding around the magnet package. In this talk, I will present the design and performance of a superconducting lead shield developed for the experiment. The shield uses a modular geometry that is installed around the magnet package while maintaining practical access for assembly and commissioning. To reduce magnetic leakage through seams between panels, we designed overlapping lead panels and soldered joints. Measurements of the completed shield demonstrated an axial shielding factor of ~300 and a transverse shielding factor of ~1000 at a low-frequency AC field.
Author
Xiaozhe Zhu
(Graduate Student)