Energy spectrum and arrival directions of high-energy electrons over 100 GeV observed with PPB-BETS

Kenji Yoshida, S. Torii, T. Tamura, H. Kitamura, T. Yamagami, J. Chang, 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. ShibataN. Tateyama, H. Yamagishi, T. Yuda

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

1 Citation (Scopus)

Abstract

We have observed cosmic-ray electrons from 10 GeV to 1 TeV with PPB-BETS by a long duration balloon flight using Polar Patrol Balloon (PPB) in Antarctica. The observation was carried out for 13 days at an 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 geometrical factor of detector is about 600 cm2sr and the total thickness of lead absorber is 9 radiation lengths. We have collected 5.7103 events over 100 GeV including nearly 100 candidates of primary electrons. During the flight, sun aspect sensors and geomagnetic aspect sensors operated to determine the attitude of the instrument. The arrival directions of high-energy electrons over 100 GeV, together with the energy spectrum, are suggested to be a powerful probe to identify nearby cosmic- ray electron sources. In this paper, we present the energy spectrum and arrival directions of cosmic-ray electrons from 100 GeV to 1 TeV observed with PPB-BETS.

Original languageEnglish
Title of host publicationProceedings of the 30th International Cosmic Ray Conference, ICRC 2007
PublisherUniversidad Nacional Autonoma de Mexico
Pages59-62
Number of pages4
Volume2
EditionOG PART 1
Publication statusPublished - 2007
Event30th International Cosmic Ray Conference, ICRC 2007 - Merida, Yucatan
Duration: 2007 Jul 32007 Jul 11

Other

Other30th International Cosmic Ray Conference, ICRC 2007
CityMerida, Yucatan
Period07/7/307/7/11

Fingerprint

patrols
balloons
high energy electrons
arrivals
cosmic rays
energy spectra
balloon flight
scintillating fibers
electrons
electron sources
sensors
detectors
Antarctic regions
scintillation counters
calorimeters
absorbers
sun
plastics
flight
probes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Yoshida, K., Torii, S., Tamura, T., Kitamura, H., Yamagami, T., Chang, J., ... Yuda, T. (2007). Energy spectrum and arrival directions of high-energy electrons over 100 GeV observed with PPB-BETS. In Proceedings of the 30th International Cosmic Ray Conference, ICRC 2007 (OG PART 1 ed., Vol. 2, pp. 59-62). Universidad Nacional Autonoma de Mexico.

Energy spectrum and arrival directions of high-energy electrons over 100 GeV observed with PPB-BETS. / Yoshida, Kenji; Torii, S.; Tamura, T.; Kitamura, H.; Yamagami, T.; Chang, J.; 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.; Yuda, T.

Proceedings of the 30th International Cosmic Ray Conference, ICRC 2007. Vol. 2 OG PART 1. ed. Universidad Nacional Autonoma de Mexico, 2007. p. 59-62.

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

Yoshida, K, Torii, S, Tamura, T, Kitamura, H, Yamagami, T, Chang, J, 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 & Yuda, T 2007, Energy spectrum and arrival directions of high-energy electrons over 100 GeV observed with PPB-BETS. in Proceedings of the 30th International Cosmic Ray Conference, ICRC 2007. OG PART 1 edn, vol. 2, Universidad Nacional Autonoma de Mexico, pp. 59-62, 30th International Cosmic Ray Conference, ICRC 2007, Merida, Yucatan, 07/7/3.
Yoshida K, Torii S, Tamura T, Kitamura H, Yamagami T, Chang J et al. Energy spectrum and arrival directions of high-energy electrons over 100 GeV observed with PPB-BETS. In Proceedings of the 30th International Cosmic Ray Conference, ICRC 2007. OG PART 1 ed. Vol. 2. Universidad Nacional Autonoma de Mexico. 2007. p. 59-62
Yoshida, Kenji ; Torii, S. ; Tamura, T. ; Kitamura, H. ; Yamagami, T. ; Chang, J. ; 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. ; Yuda, T. / Energy spectrum and arrival directions of high-energy electrons over 100 GeV observed with PPB-BETS. Proceedings of the 30th International Cosmic Ray Conference, ICRC 2007. Vol. 2 OG PART 1. ed. Universidad Nacional Autonoma de Mexico, 2007. pp. 59-62
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AU - Yoshida, Kenji

AU - Torii, S.

AU - Tamura, T.

AU - Kitamura, H.

AU - Yamagami, T.

AU - Chang, J.

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 - Yuda, T.

PY - 2007

Y1 - 2007

N2 - We have observed cosmic-ray electrons from 10 GeV to 1 TeV with PPB-BETS by a long duration balloon flight using Polar Patrol Balloon (PPB) in Antarctica. The observation was carried out for 13 days at an 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 geometrical factor of detector is about 600 cm2sr and the total thickness of lead absorber is 9 radiation lengths. We have collected 5.7103 events over 100 GeV including nearly 100 candidates of primary electrons. During the flight, sun aspect sensors and geomagnetic aspect sensors operated to determine the attitude of the instrument. The arrival directions of high-energy electrons over 100 GeV, together with the energy spectrum, are suggested to be a powerful probe to identify nearby cosmic- ray electron sources. In this paper, we present the energy spectrum and arrival directions of cosmic-ray electrons from 100 GeV to 1 TeV observed with PPB-BETS.

AB - We have observed cosmic-ray electrons from 10 GeV to 1 TeV with PPB-BETS by a long duration balloon flight using Polar Patrol Balloon (PPB) in Antarctica. The observation was carried out for 13 days at an 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 geometrical factor of detector is about 600 cm2sr and the total thickness of lead absorber is 9 radiation lengths. We have collected 5.7103 events over 100 GeV including nearly 100 candidates of primary electrons. During the flight, sun aspect sensors and geomagnetic aspect sensors operated to determine the attitude of the instrument. The arrival directions of high-energy electrons over 100 GeV, together with the energy spectrum, are suggested to be a powerful probe to identify nearby cosmic- ray electron sources. In this paper, we present the energy spectrum and arrival directions of cosmic-ray electrons from 100 GeV to 1 TeV observed with PPB-BETS.

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