Detection of ultra-high energy cosmic ray air showers by Cosmic Ray Air Fluorescence Fresnel lens Telescope for next generation
Osaka Electro Communication University, Neyagawa, Osaka, Japan
2 Shinshu University, Nagano, Nagano, Japan
3 Earthquake Research Institute, University of Tokyo, Bunkyo-ku, Tokyo, Japan
4 Kanagawa University, Yokohama, Kanagawa, Japan
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Published online: 17 May 2019
In the future, ultra-high energy cosmic ray (UHECR) observatory will be expanded due to the small flux. Then, cost reduction is useful strategy to realize a huge scale observatory. For this purpose, we are developing a simple structure cosmic ray detector named as Cosmic Ray Air Fluorescence Fresnel-lens Telescope (CRAFFT). We deployed CRAFFT detectors at the Telescope Array site and performed a test observation. We have successfully observed UHECR air showers. We will report the status and the result of the test observation.
© The Authors, published by EDP Sciences, 2019
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