The laser calibration system for the STACEE ground-based gamma ray detector

摘要

We describe the design and performance of the laser system used for calibration monitoring of components of the STACEE detector. STACEE is a ground based gamma ray detector which uses the heliostats of a solar power facility to collect and focus Cherenkov light onto a system of secondary optics and photomultiplier tubes. To monitor the gain and check the linearity and timing properties of the phototubes and associated,electronics, a system based on a dye laser. neutral density filters and optical fibres has been developed. In this paper we describe the system and present some results from initial tests made with it. (C) 2002 Elsevier Science B.V. All rights reserved. References: 14