@article{oai:nipr.repo.nii.ac.jp:00006421,
 author = {Torii, Shoji and Tamura, Tadahisa and Yoshida, Kenji and Kitamura, Hisashi and Yamagami, Takamasa and Murakami, Hiroyuki and Tateyama, Nobuhito and Nishimura, Jun and Saito, Yoshitaka and Ohta, Shigeo and Namiki, Michiyoshi and Matsuzaka, Yukihiko and Iijima, Issei and Ejiri, Masaki and Yamagishi, Hisao and Kadokura, Akira and Shibata, Makio and Katayose, Yusaku and Kasahara, Katsuaki and Mizutani, Kohei and Kobayashi, Tadashi and Komori, Yoshiko and Yuda, Toshinori and Chang, Jin},
 journal = {Advances in polar upper atmosphere research},
 month = {Aug},
 note = {P(論文), We accomplished a balloon observation of the high-energy cosmic-ray electrons in 10-1000GeV to reveal the origin and the acceleration mechanism. The observation was carried out for 13 days at an average altitude of 35km 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 600cm^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 100GeV, 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 100GeV obtained by an electronic counter.},
 pages = {52--62},
 title = {High energy electron observation by Polar Patrol Balloon flight in Antarctica},
 volume = {20},
 year = {2006}
}