The Cosmic Ray Energetics And Mass instrument is a high altitude long duration balloon experiment which has flown several times in Antarctica (see here). It has a combination of hadronic calorimetry, charge identification, and a transition radiation detector (TRD) for measurements of high energy cosmic ray nuclei. Chicago built and operated the TRD system for the first flight, CREAM-1 in 2004. More details are on this site, but some of the links are out of date.