Low Background Signal Readout Electronics for the MAJORANA DEMONSTRATOR
Abstract
The MAJORANA Collaboration will seek neutrinoless double beta decay (0nbb) in 76Ge using isotopically enriched p-type point contact (PPC) high purity Germanium (HPGe) detectors. A tonne-scale array of HPGe detectors would require background levels below 1 count/ROI-tonne-year in the 4 keV region of interest (ROI) around the 2039 keV Q-value of the decay. In order to demonstrate the feasibility of such an experiment, the MAJORANA DEMONSTRATOR, a 40 kg HPGe detector array, is being constructed with a background goal of <3 counts/ROI-tonne-year, which is expected to scale down to <1 count/ROI-tonne-year for a tonne-scale experiment. The signal readout electronics, which must be placed in close proximity to the detectors, present a challenge toward reaching this background goal. This talk will discuss the materials and design used to construct signal readout electronics with low enough backgrounds for the MAJORANA DEMONSTRATOR.
Keywords
Cite
@article{arxiv.1506.04279,
title = {Low Background Signal Readout Electronics for the MAJORANA DEMONSTRATOR},
author = {I. Guinn and N. Abgrall and I. J. Arnquist and F. T. Avignone and C. X. Baldenegro-Barrera and A. S. Barabash and F. E. Bertrand and A. W. Bradley and V. Brudanin and M. Busch and M. Buuck and D. Byram and A. S. Caldwell and Y-D. Chan and C. D. Christofferson and C. Cuesta and J. A. Detwiler and Yu. Efremenko and H. Ejiri and S. R. Elliott and A. Galindo-Uribarri and T. Gilliss and G. K. Giovanetti and J. Goett and M. P. Green and J. Gruszko and V. E. Guiseppe and R. Henning and E. W. Hoppe and S. Howard and M. A. Howe and B. R. Jasinski and K. J. Keeter and M. F. Kidd and S. I. Konovalov and R. T. Kouzes and B. D. LaFerriere and J. Leon and J. MacMullin and R. D. Martin and S. J. Meijer and S. Mertens and J. L. Orrell and C. O'Shaughnessy and A. W. P. Poon and D. C. Radford and J. Rager and K. Rielage and R. G. H. Robertson and E. Romero-Romero and B. Shanks and M. Shirchenko and N. Snyder and A. M. Suriano and D. Tedeschi and J. E. Trimble and R. L. Varner and S. Vasilyev and K. Vetter and K. Vorren and B. R. White and J. F. Wilkerson and C. Wiseman and W. Xu and E. Yakushev and C. -H. Yu and V. Yumatov and I. Zhitnikov},
journal= {arXiv preprint arXiv:1506.04279},
year = {2015}
}
Comments
6 pages, 7 figures, 2 tables. LRT 2015 Proceedings