A balloon experiment using CALET prototype (bCALET-2)

Tae Niita, Shoji Torii, Katsuaki Kasahara, Hiroyuki Murakami, Shunsuke Ozawa, Yoshitaka Ueyama, Yosui Akaike, Tadahisa Tamura, Kenji Yoshida, Yusaku Katayose, Yuki Shimizu, Hideyuki Fuke

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

CALET (CALorimetric Electron Telescope) is a high energy cosmic-ray detector to be installed on International Space Station in 2015 to carry out accurate measurements of high energy electrons and gamma-rays. For verification of the detector performance, we carried out balloon experiments using CALET prototype detectors in May 2006 (bCALET-1) and in August 2009 (bCALET-2). In this paper we mainly report about the second experiment using bCALET-2. bCALET-2 is a calorimetric instrument composed of a 3.58 radiation length thick tungsten-scintillating fiber imaging calorimeter (IMC) and a 13.4 radiation length thick bismuth-germanium-oxide calorimeter (TASC). The concept of the structure is similar to that of CALET, but the number of sensors and the thickness of materials were optimized for the balloon experiment. The observation was carried out at the Taiki Aerospace Research Field of JAXA in Hokkaido, and the detector was flown successfully for 2.5 h at a level altitude of 35 km. The observed events were analyzed by methods developed through Monte Carlo simulations, and the energy spectra of electrons and atmospheric gamma-rays in the energy range of 1-30 GeV were obtained and compared to the results of previous experiments.

Original languageEnglish
Pages (from-to)753-760
Number of pages8
JournalAdvances in Space Research
Volume55
Issue number2
DOIs
Publication statusPublished - 2015 Jan 15

Fingerprint

particle telescopes
Balloons
balloons
Telescopes
prototypes
electron
Electrons
detectors
calorimeters
Detectors
Calorimeters
experiment
Gamma rays
Experiments
gamma rays
germanium oxides
Cosmic ray detectors
energy
scintillating fibers
bismuth oxides

Keywords

  • Atmospheric gamma-rays
  • Balloon experiment
  • Cosmic-ray electrons
  • Imaging calorimeter

ASJC Scopus subject areas

  • Aerospace Engineering
  • Space and Planetary Science

Cite this

Niita, T., Torii, S., Kasahara, K., Murakami, H., Ozawa, S., Ueyama, Y., ... Fuke, H. (2015). A balloon experiment using CALET prototype (bCALET-2). Advances in Space Research, 55(2), 753-760. https://doi.org/10.1016/j.asr.2014.10.038

A balloon experiment using CALET prototype (bCALET-2). / Niita, Tae; Torii, Shoji; Kasahara, Katsuaki; Murakami, Hiroyuki; Ozawa, Shunsuke; Ueyama, Yoshitaka; Akaike, Yosui; Tamura, Tadahisa; Yoshida, Kenji; Katayose, Yusaku; Shimizu, Yuki; Fuke, Hideyuki.

In: Advances in Space Research, Vol. 55, No. 2, 15.01.2015, p. 753-760.

Research output: Contribution to journalArticle

Niita, T, Torii, S, Kasahara, K, Murakami, H, Ozawa, S, Ueyama, Y, Akaike, Y, Tamura, T, Yoshida, K, Katayose, Y, Shimizu, Y & Fuke, H 2015, 'A balloon experiment using CALET prototype (bCALET-2)', Advances in Space Research, vol. 55, no. 2, pp. 753-760. https://doi.org/10.1016/j.asr.2014.10.038
Niita T, Torii S, Kasahara K, Murakami H, Ozawa S, Ueyama Y et al. A balloon experiment using CALET prototype (bCALET-2). Advances in Space Research. 2015 Jan 15;55(2):753-760. https://doi.org/10.1016/j.asr.2014.10.038
Niita, Tae ; Torii, Shoji ; Kasahara, Katsuaki ; Murakami, Hiroyuki ; Ozawa, Shunsuke ; Ueyama, Yoshitaka ; Akaike, Yosui ; Tamura, Tadahisa ; Yoshida, Kenji ; Katayose, Yusaku ; Shimizu, Yuki ; Fuke, Hideyuki. / A balloon experiment using CALET prototype (bCALET-2). In: Advances in Space Research. 2015 ; Vol. 55, No. 2. pp. 753-760.
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