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.
@article{arxiv.1110.4692,
title = {Development of an ASIC for Dual Mirror Telescopes of the Cherenkov Telescope Array},
author = {Justin Vandenbroucke and Keith Bechtol and Stefan Funk and Akira Okumura and Hiro Tajima and Gary Varner},
journal= {arXiv preprint arXiv:1110.4692},
year = {2019}
}
Comments
4 pages, 6 figures, proceedings of the 32nd International Cosmic Ray Conference, Beijing, China (2011)