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

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

2011-10-21

arxiv.org/abs/1110.4692v1

Astronomy and Astrophysics

Astrophysics

Instrumentation and Methods for Astrophysics

4 pages, 6 figures, proceedings of the 32nd International Cosmic Ray Conference, Beijing, China (2011)

Scientific paper

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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