Speaker
Young Soo Yoon
(Institute for Basic Science)
Description
The Cosmic Ray Energetics And Mass (CREAM) instrument was designed to measure high energy ($10^{11} – 10^{15}$ eV) cosmic-ray nuclei from hydrogen to iron in a series of balloon flights. Its follow-up experiment for the International Space Station, so called ISS-CREAM, is configured with four layers of Silicon Charge Detector for charge measurements, and an ionization calorimeter (CAL) for energy measurements. In addition, scintillator-based Top and Bottom Counting Detectors and a Boronated Scintillator Detector distinguish electrons from nuclei. The ISS-CREAM CAL is configured with a densified carbon target followed by a sampling tungsten/scintillator calorimeter like the CAL flown on balloons. However, the layers of the CAL are glued together with an epoxy/fiberglass mixture between layers to meet the mechanical requirements of a rocket launch. We report on the performance of the ISS-CREAM calorimeter in response to hadrons and electrons in beam tests at CERN’s SPS. The results will be compared with previous beam tests for the balloon-borne CAL. The planned in-flight LED and charge calibration tests will also be presented.
Author
Young Soo Yoon
(Institute for Basic Science)
Co-authors
Eun Suk Seo
(University of Maryland (US))
Hwanbae Park
(Kyungpook National University)
Hyebin Jeon
(Kyungpook National University)
Jacob Smith
(University of Maryland College Park)
Jeongmin Park
(Kyungpook National University (KR))
