ADC Nonlinearity Correction for the MAJORANA DEMONSTRATOR
Abstract
Imperfections in analog-to-digital conversion (ADC) cannot be ignored when signal digitization requirements demand both wide dynamic range and high resolution, as is the case for the Majorana Demonstrator 76Ge neutrinoless double beta decay search. Enabling the experiment's high-resolution spectral analysis and efficient pulse shape discrimination required careful measurement and correction of ADC nonlinearites. A simple measurement protocol was developed that did not require sophisticated equipment or lengthy data taking campaigns. A slope-dependent hysteresis was observed and characterized. A correction applied to digitized waveforms prior to signal processing reduced the differential and integral nonlinearites by an order of magnitude, eliminating these as dominant contributions to the systematic energy uncertainty at the double-beta decay Q value.
Keywords
Cite
@article{arxiv.2003.04128,
title = {ADC Nonlinearity Correction for the MAJORANA DEMONSTRATOR},
author = {N. Abgrall and J. M. Allmond and I. J. Arnquist and F. T. Avignone and A. S. Barabash and C. J. Barton and F. E. Bertrand and B. Bos and M. Busch and M. Buuck and T. S. Caldwell and C. M. Campbell and Y-D. Chan and C. D. Christofferson and P. -H. Chu and M. L. Clark and H. L. Crawford and C. Cuesta and J. A. Detwiler and A. Drobizhev and D. W. Edwins and Yu. Efremenko and H. Ejiri and S. R. Elliott and T. Gilliss and G. K. Giovanetti and M. P. Green and J. Gruszko and I. S. Guinn and V. E. Guiseppe and C. R. Haufe and R. J. Hegedus and R. Henning and D. Hervas Aguilar and E. W. Hoppe and A. Hostiuc and M. F. Kidd and I. Kim and R. T. Kouzes and A. M. Lopez and J. M. Lopez-Castano and E. L. Martin and R. D. Martin and R. Massarczyk and S. J. Meijer and S. Mertens and J. Myslik and T. K. Oli and G. Othman and W. Pettus and A. W. P. Poon and D. C. Radford and J. Rager and A. L. Reine and K. Rielage and N. W. Ruof and M. J. Stortini and D. Tedeschi and R. L. Varner and S. Vasilyev and B. R. White and J. F. Wilkerson and C. Wiseman and W. Xu and C. -H. Yu and B. X. Zhu and B. Shanks},
journal= {arXiv preprint arXiv:2003.04128},
year = {2021}
}