A 12-channel digitizer card with 24 Gb/s optical output and ∼10 W power consumption is presented, specifically developed for the AGATA and GALILEO germanium array detectors. The card has many useful features, including: differential-input mode, end termination for both differential and common mode components of the input signals, introduction and remotely-controlled regulation of differential DC offset for dynamic range maximization, two remotely selected working ranges, built in test-pattern waveform multiplexed at the analog inputs for precise inter-channel time synchronization, optional interleaved mode for equivalent sampling-frequency multiplication, optional fast channel with remotely controlled threshold comparator working as an analog trigger for ancillary detectors. The card has been conceived for new-generation, highly-segmented, position-sensitive HPGe detectors for nuclear physics experiments, requiring digitization at 100 Ms/s 14bit or better, and is adequate for high-resolution gamma-spectroscopy and gamma-ray tracking.
A 12-channel 14/16-bit 100/125-MS/s digitizer with 24-Gb/s optical output for AGATA/GALILEO / A. Pullia, D. Barrientos, D. Bazzacco, M. Bellato, D. Bortolato, R. Isocrate - In: 2012 IEEE nuclear science symposium and medical imaging conference record : (NSS/MIC) : October 29-November 3, 2012 : Anaheim, California, USA / [a cura di] B. Yu. - Piscataway : IEEE, 2012. - ISBN 978-1-4673-2030-6. - pp. 819-823 (( convegno Nuclear science symposium and medical imaging conference tenutosi a Anaheim, CA, USA nel 2012 [10.1109/NSSMIC.2012.6551218].
A 12-channel 14/16-bit 100/125-MS/s digitizer with 24-Gb/s optical output for AGATA/GALILEO
A. PulliaPrimo
;
2012
Abstract
A 12-channel digitizer card with 24 Gb/s optical output and ∼10 W power consumption is presented, specifically developed for the AGATA and GALILEO germanium array detectors. The card has many useful features, including: differential-input mode, end termination for both differential and common mode components of the input signals, introduction and remotely-controlled regulation of differential DC offset for dynamic range maximization, two remotely selected working ranges, built in test-pattern waveform multiplexed at the analog inputs for precise inter-channel time synchronization, optional interleaved mode for equivalent sampling-frequency multiplication, optional fast channel with remotely controlled threshold comparator working as an analog trigger for ancillary detectors. The card has been conceived for new-generation, highly-segmented, position-sensitive HPGe detectors for nuclear physics experiments, requiring digitization at 100 Ms/s 14bit or better, and is adequate for high-resolution gamma-spectroscopy and gamma-ray tracking.
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