Hi all, I have posted GlueX-doc-843 on some calculations for magnetic shielding which might be useful as a guide for some of our applications for readout in the fringe field of the magnet. Cheers, Elton. Elton Smith Jefferson Lab MS 12H5 12000 Jefferson Ave Suite # 16 Newport News, VA 23606 elton@jlab.org (757) 269-7625