CHESS-U project update: New CESR magnet design and first articles delivery
In this project, dubbed CHESS-U, an 80 meter section of the Cornell Electron Storage Ring (CESR) will be replaced by 12 compact double-bend achromats (DBA’s) to lower electron beam emittance by a factor of three. The critical element in the achromat is a 2.3 meter long combined function (CF) dipole magnet which has a curved geometry. In this cost-effective and transversely compact design, the magnet has a “C-shape” core of dimensions 260 x 412 mm and tapered pole shape.