TESTS OF FERMILAB-LOW-BETA-QUADRUPOLES

The recently revived superconducting magnet program at Fermilab is cur rently focused on the development of high gradient quadrupoles for pos sible use in the Large Hadron Collider (LHC) interaction regions at CE RN. In order to provide input for the new quadrupole design which will operate in superfluid helium, we have tested a Fermilab Tevatron low- beta quadrupole cold mass and compared its low temperature performance to a newly assembled heavily instrumented version which was mechanica lly modified to take advantage of the gain in critical current.