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arXiv · 1406.0963

A method to correct differential nonlinearities in subranging analog-to-digital converters used for digital gamma-ray spectroscopy

A. Hennig·C. Fransen·W. Hennig·G. Pascovici·N. Warr·M. Weinert·A. Zilges
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Abstract

The influence on $\gamma$-ray spectra of differential nonlinearities (DNL) in subranging, pipelined analog-to-digital converts (ADCs) used for digital $\gamma$-ray spectroscopy was investigated. The influence of the DNL error on the $\gamma$-ray spectra, depending on the input count-rate and the dynamic range has been investigated systematically. It turned out, that the DNL becomes more significant in $\gamma$-ray spectra with larger dynamic range of the spectroscopy system. An event-by-event offline correction algorithm was developed and tested extensively. This correction algorithm works especially well for high dynamic ranges.

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A. Hennig, C. Fransen, W. Hennig, G. Pascovici, N. Warr, M. Weinert, A. Zilges. 2014-06-04. A method to correct differential nonlinearities in subranging analog-to-digital converters used for digital gamma-ray spectroscopy. https://doi.org/10.1016/j.nima.2014.05.047

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