Development of the calibration device using UAV mounted UV-LED light source for the fluorescence detectorTakayuki Tomida, Taichi Inadomi, Terutsugu Seki, Yuichiro Tameda, Yuya Oku and Kengo SanoEPJ Web Conf., 210 (2019) 05015DOI: https://doi.org/10.1051/epjconf/201921005015