Mr Motoki Hayashi (Shinshu University)
The main calibration items of Fluorescence Detector (FD) observation are the fluorescence yield, the atmospheric attenuation and the detector sensitivity. In 2012-2013, we conducted a joint TA-Auger calibration campaign by a flying device mounted with an ultraviolet LED as a standard light source. This device is called an octocopter, and was built by KIT. An octocopter has excellent portability and is suitable for calibration for FDs at a variety of remote locations. In TA FD observation of the octocopter, a difference in the number of detected photons between measurement and simulation is ± 5%, in the range of systematic error of the light source. In TA, we have begun developing a similar flying standard light source. By mounting a high-performance GPS, the systematic errors of the measured light source position will be improved to less than 1 m. A photodiode mounted directly near the light source measures the relative light intensity of each pulse. We report the progress of development for the octocopter, and the analysis results of the joint calibration campaign using the previous octocopter.
|Collaboration||IceCube & Pierre Auger & Telescope Array|
|Registration number following "ICRC2015-I/"||1000|