ADC Nonlinearity Correction for the Majorana Demonstrator

N. Abgrall, J. M. Allmond, I. J. Arnquist, F. T. Avignone, A. S. Barabash, C. J. Barton, F. E. Bertrand, B. Bos, M. Busch, M. Buuck, T. S. Caldwell, C. M. Campbell, Y. D. Chan, C. D. Christofferson, Pinghan Chu, M. L. Clark, H. L. Crawford, C. Cuesta, J. A. Detwiler, A. DrobizhevD. W. Edwins, Yu Efremenko, H. Ejiri, S. R. Elliott, T. Gilliss, G. K. Giovanetti, M. P. Green, J. Gruszko, I. S. Guinn, V. E. Guiseppe, C. R. Haufe, R. J. Hegedus, R. Henning, D. Hervas Aguilar, E. W. Hoppe, A. Hostiuc, M. F. Kidd, I. Kim, R. T. Kouzes, A. M. Lopez, J. M. Lopez-Castano, E. L. Martin, R. D. Martin, R. Massarczyk, S. J. Meijer, S. Mertens, J. Myslik, T. K. Oli, G. Othman, W. Pettus, A. W.P. Poon, D. C. Radford, J. Rager, A. L. Reine, K. Rielage, N. W. Ruof, M. J. Stortini, D. Tedeschi, R. L. Varner, S. Vasilyev, B. R. White, J. F. Wilkerson, C. Wiseman, W. Xu, C. H. Yu, B. X. Zhu, B. Shanks

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

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 nonlinearities. 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 nonlinearities by an order of magnitude, eliminating these as dominant contributions to the systematic energy uncertainty at the double-beta decay Q value.

Original languageEnglish
Article number9288848
Pages (from-to)359-367
Number of pages9
JournalIEEE Transactions on Nuclear Science
Volume68
Issue number3
DOIs
StatePublished - Mar 2021

Funding

FundersFunder number
National Science Foundation0923142, 1102292, 1812356, 1003399, 1206314, 1812409

    Keywords

    • Gamma-ray detectors
    • neutrinoless double-beta decay

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