The prototype GAPS (pGAPS) experiment

S. A.I. Mognet, T. Aramaki, N. Bando, S. E. Boggs, P. Von Doetinchem, H. Fuke, F. H. Gahbauer, C. J. Hailey, J. E. Koglin, N. Madden, K. Mori, S. Okazaki, R. A. Ong, K. M. Perez, G. Tajiri, T. Yoshida, J. Zweerink

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21 Scopus citations


The General Antiparticle Spectrometer (GAPS) experiment is a novel approach for the detection of cosmic ray antiparticles. A prototype GAPS (pGAPS) experiment was successfully flown on a high-altitude balloon in June of 2012. The goals of the pGAPS experiment were: to test the operation of lithium drifted silicon (Si(Li)) detectors at balloon altitudes, to validate the thermal model and cooling concept needed for engineering of a full-size GAPS instrument, and to characterize cosmic ray and X-ray backgrounds. The instrument was launched from the Japan Aerospace Exploration Agency's (JAXA) Taiki Aerospace Research Field in Hokkaido, Japan. The flight lasted a total of 6 h, with over 3 h at float altitude (~33km). Over one million cosmic ray triggers were recorded and all flight goals were met or exceeded.

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation


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