Low background signal readout electronics for the MAJORANA DEMONSTRATOR

I. Guinn, N. Abgrall, I. J. Arnquist, F. T. Avignone, C. X. Baldenegro-Barrera, A. S. Barabash, F. E. Bertrand, A. W. Bradley, V. Brudanin, M. Busch, M. Buuck, D. Byram, A. S. Caldwell, Y. D. Chan, C. D. Christofferson, C. Cuesta, J. A. Detwiler, Yu Efremenko, H. Ejiri, S. R. ElliottA. Galindo-Uribarri, T. Gilliss, G. K. Giovanetti, J. Goett, M. P. Green, J. Gruszko, V. E. Guiseppe, R. Henning, E. W. Hoppe, S. Howard, M. A. Howe, B. R. Jasinski, K. J. Keeter, M. F. Kidd, S. I. Konovalov, R. T. Kouzes, B. D. Laferriere, J. Leon, J. Macmullin, R. D. Martin, S. J. Meijer, S. Mertens, J. L. Orrell, C. O'Shaughnessy, A. W.P. Poon, D. C. Radford, J. Rager, K. Rielage, R. G.H. Robertson, E. Romero-Romero, B. Shanks, M. Shirchenko, N. Snyder, A. M. Suriano, D. Tedeschi, J. E. Trimble, R. L. Varner, S. Vasilyev, K. Vetter, K. Vorren, B. R. White, J. F. Wilkerson, C. Wiseman, W. Xu, E. Yakushev, C. H. Yu, V. Yumatov, I. Zhitnikov

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

The MAJORANA Collaboration will seek neutrinoless double beta decay (0νββ) 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 count/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.

Original languageEnglish
Title of host publicationLow Radioactivity Techniques 2015, LRT 2015
Subtitle of host publicationProceedings of the 5th International Workshop in Low Radioactivity Techniques
EditorsJohn L. Orrell
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735413191
DOIs
StatePublished - 17 Aug 2015
Externally publishedYes
Event5th International Workshop in Low Radioactivity Techniques, LRT 2015 - Seattle, United States
Duration: 18 Mar 201520 Mar 2015

Publication series

NameAIP Conference Proceedings
Volume1672
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference5th International Workshop in Low Radioactivity Techniques, LRT 2015
Country/TerritoryUnited States
CitySeattle
Period18/03/1520/03/15

Keywords

  • germanium detector
  • low background electronics
  • neutrinoless double beta decay

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