https://doi.org/10.1051/epjconf/201921005012
Quality Control of High-Speed Photon Detectors
1
the Faculty of Science and Engineering, Konan University, Kobe 658-8501, Japan
2
the Institute of Cosmic Ray Research, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
3
the Graduate Schoole of Science and Engineering, Saitama University, Saitama 338-8570, Japan
4
the Max Planck Institute for Physics, D-80805 Munich Germany
* Corresponding author: sinome05@gmail.com
Published online: 17 May 2019
High-speed-photon detectors are some of the most important tools for observations of high energy cosmic rays. As technologies of photon detectors and their read-out electronics improved rapidly, the time resolution of some cosmic ray detectors became better than one nanosecond. To utilize such devices effectively, calibrations using a short-pulse light source are necessary. We have developed a pulsed laser of 80 picosecond width and adjustable peak intensity up to 100 mW. This pulsed laser is composed of a simple electric circuit and a laser diode. Details of this pulsed laser and its application for quality controls of photon detectors are reported in this contribution.
© The Authors, published by EDP Sciences, 2019
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
