Precise measurement of cosmic-ray proton and helium spectra with the BEES spectrometer

T. Sanuki, M. Motoki, H. Matsumoto, E. S. Seo, J. Z. Wang, K. Abe, K. Anraku, Yoichi Asaoka, M. Fujikawa, M. Imori, T. Maeno, Y. Makida, N. Matsui, H. Matsunaga, J. Mitchell, T. Mitsui, A. Moiseev, J. Nishimura, M. Nozaki, S. Orito & 14 others J. Ormes, T. Saeki, M. Sasaki, Y. Shikaze, T. Sonoda, R. Streitmatter, J. Suzuki, K. Tanaka, I. Ueda, N. Yajima, T. Yamagami, A. Yamamoto, T. Yoshida, K. Yoshimura

Research output: Contribution to journalArticle

289 Citations (Scopus)

Abstract

We report cosmic-ray proton and helium spectra in energy ranges of 1-120 GeV nucleon-1 and 1-54 GeV nucleon-1, respectively, measured by a flight of the Balloon-borne Experiment with Superconducting Spectrometer (BESS) in 1998. The magnetic rigidity of the cosmic ray was reliably determined by highly precise measurement of the circular track in a uniform solenoidal magnetic field of 1 T. Those spectra were determined within overall uncertainties of ±5% for protons and ±10% for helium nuclei including statistical and systematic errors.

Original languageEnglish
Pages (from-to)1135-1142
Number of pages8
JournalAstrophysical Journal
Volume545
Issue number2 PART 1
Publication statusPublished - 2000 Dec 20
Externally publishedYes

Fingerprint

cosmic ray
helium
cosmic rays
spectrometer
magnetic rigidity
spectrometers
protons
balloons
rigidity
systematic errors
flight
magnetic field
nuclei
magnetic fields
energy
experiment

Keywords

  • Cosmic rays
  • Elementary particles

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

Sanuki, T., Motoki, M., Matsumoto, H., Seo, E. S., Wang, J. Z., Abe, K., ... Yoshimura, K. (2000). Precise measurement of cosmic-ray proton and helium spectra with the BEES spectrometer. Astrophysical Journal, 545(2 PART 1), 1135-1142.

Precise measurement of cosmic-ray proton and helium spectra with the BEES spectrometer. / Sanuki, T.; Motoki, M.; Matsumoto, H.; Seo, E. S.; Wang, J. Z.; Abe, K.; Anraku, K.; Asaoka, Yoichi; Fujikawa, M.; Imori, M.; Maeno, T.; Makida, Y.; Matsui, N.; Matsunaga, H.; Mitchell, J.; Mitsui, T.; Moiseev, A.; Nishimura, J.; Nozaki, M.; Orito, S.; Ormes, J.; Saeki, T.; Sasaki, M.; Shikaze, Y.; Sonoda, T.; Streitmatter, R.; Suzuki, J.; Tanaka, K.; Ueda, I.; Yajima, N.; Yamagami, T.; Yamamoto, A.; Yoshida, T.; Yoshimura, K.

In: Astrophysical Journal, Vol. 545, No. 2 PART 1, 20.12.2000, p. 1135-1142.

Research output: Contribution to journalArticle

Sanuki, T, Motoki, M, Matsumoto, H, Seo, ES, Wang, JZ, Abe, K, Anraku, K, Asaoka, Y, Fujikawa, M, Imori, M, Maeno, T, Makida, Y, Matsui, N, Matsunaga, H, Mitchell, J, Mitsui, T, Moiseev, A, Nishimura, J, Nozaki, M, Orito, S, Ormes, J, Saeki, T, Sasaki, M, Shikaze, Y, Sonoda, T, Streitmatter, R, Suzuki, J, Tanaka, K, Ueda, I, Yajima, N, Yamagami, T, Yamamoto, A, Yoshida, T & Yoshimura, K 2000, 'Precise measurement of cosmic-ray proton and helium spectra with the BEES spectrometer', Astrophysical Journal, vol. 545, no. 2 PART 1, pp. 1135-1142.
Sanuki T, Motoki M, Matsumoto H, Seo ES, Wang JZ, Abe K et al. Precise measurement of cosmic-ray proton and helium spectra with the BEES spectrometer. Astrophysical Journal. 2000 Dec 20;545(2 PART 1):1135-1142.
Sanuki, T. ; Motoki, M. ; Matsumoto, H. ; Seo, E. S. ; Wang, J. Z. ; Abe, K. ; Anraku, K. ; Asaoka, Yoichi ; Fujikawa, M. ; Imori, M. ; Maeno, T. ; Makida, Y. ; Matsui, N. ; Matsunaga, H. ; Mitchell, J. ; Mitsui, T. ; Moiseev, A. ; Nishimura, J. ; Nozaki, M. ; Orito, S. ; Ormes, J. ; Saeki, T. ; Sasaki, M. ; Shikaze, Y. ; Sonoda, T. ; Streitmatter, R. ; Suzuki, J. ; Tanaka, K. ; Ueda, I. ; Yajima, N. ; Yamagami, T. ; Yamamoto, A. ; Yoshida, T. ; Yoshimura, K. / Precise measurement of cosmic-ray proton and helium spectra with the BEES spectrometer. In: Astrophysical Journal. 2000 ; Vol. 545, No. 2 PART 1. pp. 1135-1142.
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AU - Sanuki, T.

AU - Motoki, M.

AU - Matsumoto, H.

AU - Seo, E. S.

AU - Wang, J. Z.

AU - Abe, K.

AU - Anraku, K.

AU - Asaoka, Yoichi

AU - Fujikawa, M.

AU - Imori, M.

AU - Maeno, T.

AU - Makida, Y.

AU - Matsui, N.

AU - Matsunaga, H.

AU - Mitchell, J.

AU - Mitsui, T.

AU - Moiseev, A.

AU - Nishimura, J.

AU - Nozaki, M.

AU - Orito, S.

AU - Ormes, J.

AU - Saeki, T.

AU - Sasaki, M.

AU - Shikaze, Y.

AU - Sonoda, T.

AU - Streitmatter, R.

AU - Suzuki, J.

AU - Tanaka, K.

AU - Ueda, I.

AU - Yajima, N.

AU - Yamagami, T.

AU - Yamamoto, A.

AU - Yoshida, T.

AU - Yoshimura, K.

PY - 2000/12/20

Y1 - 2000/12/20

N2 - We report cosmic-ray proton and helium spectra in energy ranges of 1-120 GeV nucleon-1 and 1-54 GeV nucleon-1, respectively, measured by a flight of the Balloon-borne Experiment with Superconducting Spectrometer (BESS) in 1998. The magnetic rigidity of the cosmic ray was reliably determined by highly precise measurement of the circular track in a uniform solenoidal magnetic field of 1 T. Those spectra were determined within overall uncertainties of ±5% for protons and ±10% for helium nuclei including statistical and systematic errors.

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KW - Cosmic rays

KW - Elementary particles

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