Flash Analog to Digital Convertor (FADC) is frequently used in nuclear and particle physics experiments, often as the major component in big multi-channel systems. The large data volume makes the optimization of operating parameters necessary. This article reports a study of a method to extend the dynamic range of an 8-bit FADC from the nominal 28 value. By comparing the integrated pulse area with that of a reference profile, good energy reconstruction and event identification can be achieved on saturated events from CsI(Tl) crystal scintillators. The effective dynamic range can be extended by at least 4 more bits. The algorithm is generic and is expected to be applicable to other detector systems with FADC readout.
@article{arxiv.hep-ex/0304022,
title = {Effective Dynamic Range in Measurements with Flash Analog-to-Digital Convertor},
author = {Q. Yue},
journal= {arXiv preprint arXiv:hep-ex/0304022},
year = {2009}
}