Wide field-of-view atmospheric Cherenkov telescope based on refractive lens
Abstract
A wide field of view (FOV) is an important feature of a detector in the gamma ray observation of sporadic, extended, and transient sources. In this work, we discuss an atmospheric Cherenkov telescope (ACT) with a refractive water convex lens as its light collector, and we test the feasibility of this new approach. We determine the optical properties of a water lens with a diameter of 0.9 m, such as focal length, spot size, and transmittance. The first detection of cosmic rays (CRs) observed in coincidence with a scintillator extensive air shower (EAS) array is presented and discussed.
- Publication:
-
Journal of Instrumentation
- Pub Date:
- September 2017
- DOI:
- 10.1088/1748-0221/12/09/P09023
- Bibcode:
- 2017JInst..12P9023C