12-20 July 2017
Asia/Seoul timezone
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BEXCO - Room F(201/202/203/204)

[CRD017] Simulation Status of the Top and Bottom Counting Detectors for the ISS-CREAM Experiment


  • Sinchul KANG

Primary authors


The Cosmic Ray Energetics And Mass (CREAM) instrument for the International Space Station (ISS) is a detector for studying the origin, acceleration and propagation mechanism of high-energy cosmic rays. The ISS-CREAM instrument is scheduled to launch in 2017 to the ISS. The Top and Bottom Counting Detectors (TCD/BCD) are designed for studying electron and gamma-ray physics. The TCD/BCD are composed of a plastic scintillator each read out with an array of 20 ×20 photodiodes. The active detection areas of the TCD/BCD are "500 ×500 m" "m" ^"2" and "600 ×600 m" "m" ^"2" , respectively. The TCD/BCD are already completed and have passed the environmental tests for checking their safety in a space environment. After finishing the safety tests, the TCD/BCD were integrated with rest of the payload. The TCD is located between the carbon target of the ISS-CREAM instrument and the calorimeter, the BCD being located below the calorimeter. The TCD/BCD can distinguish between electrons and protons by using the different shapes between electromagnetic and hadronic showers in the high-energy region. We study the TCD/BCD performance in various energy ranges by using GEANT3 simulation data. In this presentation, we will present the status of the TCD/BCD with simulation results.