TA fluorescence detector calibration by UV LED with an unmanned aerial vehicle

ArticlePoS ICRC2017journal articl

Development of a UAV-mounted Light Source for Fluorescence Detector Calibration of the Telescope Array Experiment

ArticleThe Physical Society of Japanjournal articl

Characterization of the DIMS system based on astronomical meteor techniques for macroscopic dark matter search

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HiRes and TA Composition measurements

In order to clarify the origin of ultra high energy cosmic rays (UHECRs), it is very important to determine the mass composition. The most effective strategy to determine the mass composition is Xmax technique. Xmax is the atmospheric depth of air shower maximum measured by fluorescence detectors (FDs). HiRes has reported Xmax measurement by FDs which indicated proton dominated mass composition. Now, Telescope Array (TA) experiment has also measured UHECRs with FDs. In this presentation, the detail of mass composition analysis and result of TA experiment will be reported and compared with HiRes experiment

Development of the calibration device using UAV mounted UV-LED light source for the fluorescence detector

We have developed a standard UV-LED light source mounted on an unmanned aerial vehicle (UAV), so-called the Opt-copter, for the calibration of the fluorescence detectors (FDs) of the Telescope Array experiment. The positioning accuracy of the UAV controlled by GPS is ~ 10 cm, which enables a precision calibration of the pointing directions of the FD phototubes. We report the hardware details of the device and the status of data analysis

Development of the calibration device using UAV mounted UV-LED light source for the fluorescence detector

We have developed a standard UV-LED light source mounted on an unmanned aerial vehicle (UAV), so-called the Opt-copter, for the calibration of the fluorescence detectors (FDs) of the Telescope Array experiment. The positioning accuracy of the UAV controlled by GPS is ~ 10 cm, which enables a precision calibration of the pointing directions of the FD phototubes. We report the hardware details of the device and the status of data analysis

Detection of ultra-high energy cosmic ray air showers by Cosmic Ray Air Fluorescence Fresnel lens Telescope for next generation

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