Cryogenic Correction Coil Testing

The lattice of the Fermi National Accelerator Laboratory\´s Energy Saver/Doubler contains a group of superconducting correction windings with each quadrupole which are housed in an element referred to as a "spool". There are 192 spools in the ring plus 12 special power spools which contain the main buss 5000 ampere power as well as correction elements. There will be constructed and tested 260 spools including spares of each of the eight different types. There have been 243 individual spools tested to date. During last fiscal year 188 spool tests were conducted at the test facility . The spools were tested for a) high voltage integrity, b) critical transport current, c) cryogenic heat load, d) cryogenic operating characteristics, e) thermometry calibration and at another facility, magnetic field quality. Data are summarized for 288 cryogenic tests of the 246 different spools, 488 coil sets, and 1464 correction magnets.