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arXiv · 0911.2015

An LED-based Flasher System for VERITAS

D. Hanna·A. McCann·M. McCutcheon·L. Nikkinen
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Abstract

We describe a flasher system designed for use in monitoring the gains of the photomultiplier tubes used in the VERITAS gamma-ray telescopes. This system uses blue light-emitting diodes (LEDs) so it can be operated at much higher rates than a traditional laser-based system. Calibration information can be obtained with better statistical precision with reduced loss of observing time. The LEDs are also much less expensive than a laser. The design features of the new system are presented, along with measurements made with a prototype mounted on one of the VERITAS telescopes.

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D. Hanna, A. McCann, M. McCutcheon, L. Nikkinen. 2009-11-10. An LED-based Flasher System for VERITAS. https://doi.org/10.1016/j.nima.2009.10.107

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