Energy Calibration for WFCTA Using Nitrogen Laser

摘要

Nitrogen laser(pulsed UV laser) provides useful ”test-beams” for Wide Filed of view Cherenkov Telescope Array(WFCTA) experiment to measure high energy cosmic rays. Since the absolute laser energy can be measured locally and the light observed by the telescope is proportional to the energy of the laser pulse, a well-calibrated nitrogen laser offers a practical way to test the photometric calibration of WFCTA including atmospheric corrections. This talk will describe a robotic system for energy calibration. Preliminary laser calibration results of WFCTA will be also reported.