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The Majorana Low-noise Low-background Front-end Electronics

  • N. Abgrall
  • , E. Aguayo
  • , F. T. Avignone
  • , A. S. Barabash
  • , F. E. Bertrand
  • , M. Boswell
  • , V. Brudanin
  • , M. Busch
  • , D. Byram
  • , A. S. Caldwell
  • , Y. D. Chan
  • , C. D. Christofferson
  • , D. C. Combs
  • , C. Cuesta
  • , J. A. Detwiler
  • , P. J. Doe
  • , Yu Efremenko
  • , V. Egorov
  • , H. Ejiri
  • , S. R. Elliott
  • J. E. Fast, P. Finnerty, F. M. Fraenkle, A. Galindo-Uribarri, G. K. Giovanetti, J. Goett, M. P. Green, J. Gruszko, V. E. Guiseppe, K. Gusev, A. L. Hallin, R. Hazama, A. Hegai, R. Henning, E. W. Hoppe, S. Howard, M. A. Howe, K. J. Keeter, M. F. Kidd, O. Kochetov, S. I. Konovalov, R. T. Kouzes, B. D. Laferriere, J. Leon, L. E. Leviner, J. C. Loach, J. MacMullin, S. MacMullin, R. D. Martin, S. Meijer, S. Mertens, M. Nomachi, J. L. Orrell, C. O'Shaughnessy, N. R. Overman, D. G. Phillips, A. W.P. Poon, K. Pushkin, D. C. Radford, J. Rager, K. Rielage, R. G.H. Robertson, E. Romero-Romero, M. C. Ronquest, A. G. Schubert, B. Shanks, T. Shima, M. Shirchenko, K. J. Snavely, N. Snyder, A. M. Suriano, J. Thompson, V. Timkin, W. Tornow, J. E. Trimble, R. L. Varner, S. Vasilyev, K. Vetter, K. Vorren, B. R. White, J. F. Wilkerson, C. Wiseman, W. Xu, E. Yakushev, A. R. Young, C. H. Yu, V. Yumatov
  • Lawrence Berkeley National Laboratory
  • Pacific Northwest National Laboratory
  • University of South Carolina
  • Oak Ridge National Laboratory
  • ITEP
  • Los Alamos National Laboratory
  • Joint Inst. for Nuclear Research
  • Duke University
  • Triangle Universities Nuclear Laboratory
  • University of South Dakota
  • South Dakota School of Mines and Technology
  • North Carolina State University
  • University of Washington
  • University of Tennessee
  • Osaka University
  • University of North Carolina
  • University of Alberta
  • Black Hills State University
  • Tennessee Technological University
  • Shanghai Jiao Tong University

Research output: Contribution to journalConference articlepeer-review

12 Scopus citations

Abstract

The MAJORANA DEMONSTRATOR will search for the neutrinoless double beta decay (ββ(0ν)) of the isotope 76Ge with a mixed array of enriched and natural germanium detectors. In view of the next generation of tonne-scale germanium-based ββ(0ν)-decay searches, a major goal of the MAJORANA DEMONSTRATOR is to demonstrate a path forward to achieving a background rate at or below 1 cnt/(ROI-t-y) in the 4 keV region of interest (ROI) around the 2039-keV Q-value of the 76Ge ββ(0ν)-decay. Such a requirement on the background level significantly constrains the design of the readout electronics, which is further driven by noise and energy resolution performances. We present here the low-noise low- background front-end electronics developed for the low-capacitance p-type point contact (P-PC) germanium detectors of the MAJORANA DEMONSTRATOR. This resistive-feedback front-end, specifically designed to have low mass, is fabricated on a radioassayed fused-silica substrate where the feedback resistor consists of a sputtered thin film of high purity amorphous germanium and the feedback capacitor is based on the capacitance between gold conductive traces.

Original languageEnglish
Pages (from-to)654-657
Number of pages4
JournalPhysics Procedia
Volume61
DOIs
StatePublished - 2015
Externally publishedYes
Event13th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2013 - , United States
Duration: 8 Sep 201313 Sep 2013

Keywords

  • charge sensitive amplifer
  • low background
  • low noise
  • neutrinoless double beta decay
  • resistive-feedback front-end

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