G. Pühlhofer, M. Barcelo, C. Bauer, B. Bi, J. Catalano, S. Diebold, S. Eschbach, D. Florin, C. Foehr, S. Funk, A. Gadola, F. Garrecht, G. Hermann, I. Jung, O. Kalekin, C. Kalkuhl, T. Kihm, F. Leuschner, A. Mitchell, M. Pfeifer, G. Principe, S. Pürckhauer, O. Reimer, S. Sailer, H. Salzmann, A. Santangelo, M. Scalici, T. Schanz, T. Schwab, U. Straumann, C, Tenzer, A. Vollhardt, F. Werner, D. Wolf
FlashCam is an innovative camera designed for the focal plane instrumentation of Cherenkov telescopes. The concept of the FlashCam trigger and readout system is based on the continuous digitization and digital processing of the photo detector signals on FPGAs, and on a high performance, Ethernet-based front-end readout. Because of the modular design, the electronics that have been developed can serve either photomultiplier tubes or silicon-based photon detectors. In the framework of the CTA (Cherenkov telescope array) project, the FlashCam team has developed a PMT-based camera that is suitable for the medium-sized telescopes. With over 100 Cherenkov telescopes, the CTA observatory will run the most sensitive ground-based telescope systems for TeV gamma-ray astronomy when the two arrays in the Northern and Southern Hemisphere (with three different telescope sizes) will go into operation in the upcoming years.
S. Diebold, M. Barcelo, C. Bauer, S. Bernhard, M. Biegger, M. Capasso, F. Eisenkolb, S. Eschbach, D. Florin, C. Föhr, S. Funk, A. Gadola, F. Garrecht, G. Hermann, I. Jung, O. Kalekin, C. Kalkuhl, J. Kasperek, T. Kihm, R. Lahmann, A. Marszalek, M. Pfeifer, G. Principe, G. Pühlhofer, S. Pürckhauer, P. Rajda, O. Reimer, A. Santangelo, T. Schanz, S. Sailer, T. Schwab, S. Steiner, U. Straumann, C. Tenzer, A. Vollhardt, F. Werner, D. Wolf, K. Zietara
The Cherenkov Telescope Array (CTA) will be the future observatory for ground-based TeV gamma-ray astronomy. At two sites, one in the northern and one in the southern hemisphere, CTA will feature about one hundred telescopes of different size classes in order to significantly improve the sensitivity and energy range with respect to current Cherenkov facilities. FlashCam is a camera system proposed for the medium-sized telescopes of CTA that implements a fully-digital readout and trigger processing, which allows the reconfiguration of the trigger algorithm and the signal shaping. For the mass production of a substantial number of FlashCam cameras, efficient and reliable testing routines have been developed. In this contribution, the concept and the procedures for large-scale testing of the readout electronics are outlined. Additionally, a fast multi-channel pulse generator specifically designed for the functional testing of FlashCam FADC modules setup is presented.
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