The Waveform Digitiser of the Double Chooz Experiment: Performance and Quantisation Effects on PhotoMultiplier Tube Signals
Y. Abe, T. Akiri, A. Cabrera, B. Courty, J.V. Dawson, L.F.G. Gonzalez,, A. Hourlier, M. Ishitsuka, H. de Kerret, D. Kryn, P. Novella, M. Obolensky,, S. Perasso, A. Remoto, R. Roncin
TL;DR
This paper details the design, implementation, and performance analysis of a waveform digitiser used in the Double Chooz experiment, focusing on quantisation effects on photomultiplier tube signals.
Contribution
It introduces a custom waveform digitiser with firmware tailored for low-light PMT signals and provides insights into quantisation effects impacting measurement accuracy.
Findings
Quantisation effects significantly influence signal measurement accuracy.
The digitiser effectively captures low-light signals from photomultiplier tubes.
Recommendations for designing and using waveform digitisers are provided.
Abstract
We present the waveform digitiser used in the Double Chooz experiment. We describe the hardware and the custom-built firmware specifically developed for the experiment. The performance of the device is tested with regards to digitising low light level signals from photomultiplier tubes and measuring pulse charge. This highlights the role of quantisation effects and leads to some general recommendations on the design and use of waveform digitisers.
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