The Multiple Magnet Test Program

A test facility has been constructed at the B12 location of the Fermilab main accelerator in order to test superconducting Doubler magnet strings under conditions similar to their final operating conditions while minimizing the interference to the ongoing 400 GeV program. Tests on the cryogenic, magnet and magnet power supply systems have been performed. In addition, a quench protection system has been tested that protects the magnets from damage due to a quench up to the full operating current of the Doubler.