Performance of the CREAM-V and CREAM-VI calorimeters in flight

The Cosmic Ray Energetics And Mass (CREAM) is a balloon-borne experiment designed to study the composition and energy spectra of cosmic-ray particles. CREAM has flown six times from McMurdo Station in Antarctica between December 2004 and December 2010. The payload for the CREAM-V flight employed a Timing Charge Detector (TCD), Cherenkov Camera (CherCam) and Silicon Charge Detector (SCD) for the charge measurement, and a Calorimeter (CAL) for the energy measurement. For the CREAM-VI flight, the payload only included the CherCam, SCD and CAL. The CAL was constructed of 20 layers tungsten plates interleaved with scintillating fiber ribbons, and used to measure the elemental energy spectra of cosmic rays up to 1015 eV. In this paper we present the performance of the CREAM-V (2009-2010 season) and CREAM-VI (2010-2011 season) calorimeters during flight, and show preliminary distributions of energy deposited in the CAL.