Detection of ultra-high energy cosmic ray air showers by Cosmic Ray Air Fluorescence Fresnel lens Telescope for next generationYuichiro Tameda, Mashu Yamamoto, Takayuki Tomida, Daisuke Ikeda, Katsuya Yamazaki, Hirokazu Iwakura, Yuya Nakamura and Yasunori SaitoEPJ Web Conf., 210 (2019) 06004DOI: https://doi.org/10.1051/epjconf/201921006004