Energy spectrum of cosmic-ray electrons in 10 -1000 GeV observed with the PPB-BETS over Antarctica

• Main Author: Kitamura Hisashi
• Format: Conference Object
• Language: English
• Published: 2019
• Subjects: Syowa Station; Antarc*; Antarctica
• Online Access: https://repo.qst.go.jp/?action=repository_uri&item_id=60489; http://id.nii.ac.jp/1657/00060477/

We present preliminary results on the spectrum of high energycosmic-ray electrons as the measured in the flightof the Polar Patrol Balloon (PPB) which lasted for 13 days,in January,2004 with a launch from Syowa Station, Antarctica.The PPB-BETS (Balloon-borne Electron Telescope with ScintillatingFiber) detector is designed to measure the cosmic-ray electron spectrumfrom 10 GeV to 1 TeV during a long balloon flight.It consists of 9 plates of plastic scinlater as a calorimeterand a scintillating fiber trackers for cascade showersinduced from high energy electrons and protonsbetween plates of lead with total 9 radiation length thickness.In this paper, we discuss the perfomance of the detectorand the preliminary results on the spectrum of cosmic-ray electrons. 35th COSPAR SCIENTIFIC ASSEMBLY