I'm deeper into the planning for this summer's experimental search for H-Rays [1]. I've abandoned my previous superconducting magnet designs in favor of a much simpler pre-existing yoke magnet that's sitting out in the hallway. The pole pieces are in the center of the picture and are retractable using the knobs on the edges of the magnet. The resulting gap between the pole pieces is where the Dewar will sit,see the picture below: The Dewar sitting between the pole pieces has created a new theoretical issue. It's only theoretical for the moment though. Once we have numbers to go with the theory, we'll find out if our Dewar will wind up looking like this[3][4]: As +Peter Terren can tell you, rapidly changing magnetic fields like we hope to generate for quenching our superconducting sample will cause Lenz's law eddy currents that create opposing magnetic fields and resulting forces applied to the surfaces that contain the conductors. ...