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arXiv · 1110.4692

Development of an ASIC for Dual Mirror Telescopes of the Cherenkov Telescope Array

Justin Vandenbroucke·Keith Bechtol·Stefan Funk·Akira Okumura·Hiro Tajima·Gary Varner
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Abstract

We have developed an application-specific integrated circui (ASIC) for photomultipler tube (PMT) waveform digitization which is well-suited for the Schwarzschild-Couder optical system under development for the Cherenkov Telescope Array (CTA) project. The key feature of the "TARGET" ASIC is the ability to read 16 channels in parallel at a sampling speed of 1 GSa/s or faster. In combination with a focal plane instrumented with 64-channel multi-anode PMTs (MAPMTs), TARGET digitizers will enable CTA to achieve a wider field of view than the current Cherenkov telescopes and significantly reduce the cost per channel of the camera and readout electronics. We have also developed a prototype camera module, consisting of 4 TARGET ASICs and a 64-channel MAPMT. We report results from performance testing of the camera module and of the TARGET ASIC itself.

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Justin Vandenbroucke, Keith Bechtol, Stefan Funk, Akira Okumura, Hiro Tajima, Gary Varner. 2011-10-21. Development of an ASIC for Dual Mirror Telescopes of the Cherenkov Telescope Array. https://doi.org/10.7529/icrc2011%2Fv09%2F1065

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