GRAINE (Gamma-Ray Astro-Imager with Nuclear Emulsion) is a project aiming to observe cosmic gamma-ray sources.\ The main detector is consists of emulsion films and have sub-micron accuracy for tracking electron pairs from gamma ray interactions. In 2015, we succeeded 14 hour balloon flight in Australia Alice-Springs, and analysis of millions of cosmic-ray and gamma-ray events is undergoing.
We analyzed hadronic interaction in the emulsion chamber to evaluate the performance of the telescope. I detected about $1.5 \times 10^5$ hadronic events in one module and identified gamma rays attaching the events. As a result, we proved that angular resolution is about five times superior to existing telescopes.
Volume 294 -
The 3rd International Symposium on “Quest for the Origin of Particles and the Universe" (KMI2017) -
Poster Presentations
Analysis of cosmic-ray interaction in balloon-borne emulsion detector.
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Pre-published on:
November 22, 2017
Published on:
November 24, 2017
Abstract
DOI: https://doi.org/10.22323/1.294.0059
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.