@article{oai:repo.qst.go.jp:00044954,
 author = {Torii, Syoji and Tamura, Tadahisa and Yoshida, Kenji and Kitamura, Hisashi and Katayose, Yusaku and et.al and 鳥居 祥二 and 田村 忠久 and 吉田 賢二 and 北村 尚 and 片寄 祐作},
 journal = {Advances in Polar Upper Atmosphere Research},
 month = {},
 note = {We accomplished a balloon observation of the high-energy cosmic-ray electrons
in 10-1000 GeV to reveal the origin and the acceleration mechanism. The
observation was carried out for 15 days at an average altitude of 35 km by the Polar
Patrol Balloon (PPB) around Antarctica in January ,2004. The detector is an imaging
calorimeter composed of scintillating-fiber belts and plastic scintillation counters
sandwiched between lead plates. The geometrical factor is about 600 cm^2sr, and the
total thickness of lead absorber is 9 radiation lengths. The performance of the
detector has been confirmed by a test flight at the Sanriku Balloon Center and by an
accelerator beam test using the CERN-SPS (Super Proton Synchrotron at CERN).
The new telemetry system using the Iridium satellite, the power system supplied by
solar panels and the automatic flight level control operated successfully during the
flight. We collected 5.7*10^3 events over 100 GeV, and selected the electron candidates
by a preliminary data analysis of the shower images. We report here an outline
of both detector and observation, and the first result of the electron energy spectrum
over 100 GeV obtained by an electronic counter.},
 pages = {52--62},
 title = {High energy electron observation by Polar Patrol Balloon flight in Antarctica},
 volume = {20},
 year = {2006}
}