| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1827317 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2010 | 10 Pages |
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.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
D. Hanna, A. McCann, M. McCutcheon, L. Nikkinen,