Observation of electrons above 100 GeV with the BETS detector using long-duration balloon in Antarctica

S. Torii, T. Tamura, T. Yamagami, M. Ejiri, H. Kitamura, I. Iijima, A. Kadokura, K. Kasahara, Y. Katayose, T. Kobayashi, Y. Komori, Y. Matsuzaka, K. Mizutani, H. Murakami, M. Namiki, J. Nishimura, S. Ohta, Y. Saito, M. Shibata, N. Tateyama & 4 others H. Yamagishi, Kenji Yoshida, T. Yuda, J. Chang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

We had a long duration balloon flight for observing cosmic-ray electrons from 10 GeV to 1000 GeV by the Polar Patrol Balloon (PPB) in Antarctica. The observation was carried out for 13 days at an average altitude of 35 km in January 2004. The detector is an imaging calorimeter composed of scintillating-fiber belts and plastic scintillators inserted between lead plates. The performance of the detector has been confirmed by the beam test at CERN-SPS and also investigated by Monte-Carlo simulations. We have collected 5.7×103 events above 100GeV including nearly 100 candidates of primary electrons. Preliminary result of the electron energy spectrum in 100̃1000 GeV has been obtained.

Original languageEnglish
Title of host publication29th International Cosmic Ray Conference, ICRC 2005
PublisherTata Institute of Fundamental Research
Pages29-32
Number of pages4
Volume3
Publication statusPublished - 2005
Externally publishedYes
Event29th International Cosmic Ray Conference, ICRC 2005 - Pune
Duration: 2005 Aug 32005 Aug 10

Other

Other29th International Cosmic Ray Conference, ICRC 2005
CityPune
Period05/8/305/8/10

Fingerprint

Antarctic regions
balloons
patrols
balloon flight
scintillating fibers
detectors
scintillation counters
calorimeters
cosmic rays
energy spectra
electrons
plastics
electron energy
simulation

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Torii, S., Tamura, T., Yamagami, T., Ejiri, M., Kitamura, H., Iijima, I., ... Chang, J. (2005). Observation of electrons above 100 GeV with the BETS detector using long-duration balloon in Antarctica. In 29th International Cosmic Ray Conference, ICRC 2005 (Vol. 3, pp. 29-32). Tata Institute of Fundamental Research.

Observation of electrons above 100 GeV with the BETS detector using long-duration balloon in Antarctica. / Torii, S.; Tamura, T.; Yamagami, T.; Ejiri, M.; Kitamura, H.; Iijima, I.; Kadokura, A.; Kasahara, K.; Katayose, Y.; Kobayashi, T.; Komori, Y.; Matsuzaka, Y.; Mizutani, K.; Murakami, H.; Namiki, M.; Nishimura, J.; Ohta, S.; Saito, Y.; Shibata, M.; Tateyama, N.; Yamagishi, H.; Yoshida, Kenji; Yuda, T.; Chang, J.

29th International Cosmic Ray Conference, ICRC 2005. Vol. 3 Tata Institute of Fundamental Research, 2005. p. 29-32.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Torii, S, Tamura, T, Yamagami, T, Ejiri, M, Kitamura, H, Iijima, I, Kadokura, A, Kasahara, K, Katayose, Y, Kobayashi, T, Komori, Y, Matsuzaka, Y, Mizutani, K, Murakami, H, Namiki, M, Nishimura, J, Ohta, S, Saito, Y, Shibata, M, Tateyama, N, Yamagishi, H, Yoshida, K, Yuda, T & Chang, J 2005, Observation of electrons above 100 GeV with the BETS detector using long-duration balloon in Antarctica. in 29th International Cosmic Ray Conference, ICRC 2005. vol. 3, Tata Institute of Fundamental Research, pp. 29-32, 29th International Cosmic Ray Conference, ICRC 2005, Pune, 05/8/3.
Torii S, Tamura T, Yamagami T, Ejiri M, Kitamura H, Iijima I et al. Observation of electrons above 100 GeV with the BETS detector using long-duration balloon in Antarctica. In 29th International Cosmic Ray Conference, ICRC 2005. Vol. 3. Tata Institute of Fundamental Research. 2005. p. 29-32
Torii, S. ; Tamura, T. ; Yamagami, T. ; Ejiri, M. ; Kitamura, H. ; Iijima, I. ; Kadokura, A. ; Kasahara, K. ; Katayose, Y. ; Kobayashi, T. ; Komori, Y. ; Matsuzaka, Y. ; Mizutani, K. ; Murakami, H. ; Namiki, M. ; Nishimura, J. ; Ohta, S. ; Saito, Y. ; Shibata, M. ; Tateyama, N. ; Yamagishi, H. ; Yoshida, Kenji ; Yuda, T. ; Chang, J. / Observation of electrons above 100 GeV with the BETS detector using long-duration balloon in Antarctica. 29th International Cosmic Ray Conference, ICRC 2005. Vol. 3 Tata Institute of Fundamental Research, 2005. pp. 29-32
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AU - Torii, S.

AU - Tamura, T.

AU - Yamagami, T.

AU - Ejiri, M.

AU - Kitamura, H.

AU - Iijima, I.

AU - Kadokura, A.

AU - Kasahara, K.

AU - Katayose, Y.

AU - Kobayashi, T.

AU - Komori, Y.

AU - Matsuzaka, Y.

AU - Mizutani, K.

AU - Murakami, H.

AU - Namiki, M.

AU - Nishimura, J.

AU - Ohta, S.

AU - Saito, Y.

AU - Shibata, M.

AU - Tateyama, N.

AU - Yamagishi, H.

AU - Yoshida, Kenji

AU - Yuda, T.

AU - Chang, J.

PY - 2005

Y1 - 2005

N2 - We had a long duration balloon flight for observing cosmic-ray electrons from 10 GeV to 1000 GeV by the Polar Patrol Balloon (PPB) in Antarctica. The observation was carried out for 13 days at an average altitude of 35 km in January 2004. The detector is an imaging calorimeter composed of scintillating-fiber belts and plastic scintillators inserted between lead plates. The performance of the detector has been confirmed by the beam test at CERN-SPS and also investigated by Monte-Carlo simulations. We have collected 5.7×103 events above 100GeV including nearly 100 candidates of primary electrons. Preliminary result of the electron energy spectrum in 100̃1000 GeV has been obtained.

AB - We had a long duration balloon flight for observing cosmic-ray electrons from 10 GeV to 1000 GeV by the Polar Patrol Balloon (PPB) in Antarctica. The observation was carried out for 13 days at an average altitude of 35 km in January 2004. The detector is an imaging calorimeter composed of scintillating-fiber belts and plastic scintillators inserted between lead plates. The performance of the detector has been confirmed by the beam test at CERN-SPS and also investigated by Monte-Carlo simulations. We have collected 5.7×103 events above 100GeV including nearly 100 candidates of primary electrons. Preliminary result of the electron energy spectrum in 100̃1000 GeV has been obtained.

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