Low Background Signal Readout Electronics for the MAJORANA DEMONSTRATOR

Conference · Sat Aug 01 00:00:00 EDT 2015

DOI:https://doi.org/10.1063/1.4927982· OSTI ID:1343520

Guinn, I. ^[1]; Abgrall, N. ^[2]; Arnquist, I. J. ^[3]; Avignone, III, F. T. ^[4]; Baldenegro-Barrera, C. X. ^[5]; Barabash, A.S. ^[6]; Bertrand, F. E. ^[5]; Bradley, A. W. ^[2]; Brudanin, V. ^[7]; Busch, M. ^[8]; Buuck, M. ^[1]; Byram, D. ^[9]; Caldwell, A. S. ^[10]; Chan, Y-D ^[2]; Christofferson, C. D. ^[10]; Cuesta, C ^[1]; Detwiler, J. A. ^[1]; Efremenko, M. ^[11]; Ejiri, H. ^[12]; Elliott, S. R. ^[13] ; Galindo-Uribarri, A. ^[5]; Gilliss, T. ^[14]; Giovanetti, G. K. ^[15]; Goett, J ^[13]; Green, M. P. ^[5]; Gruszko, J ^[1]; Guiseppe, V E. ^[16]; Henning, R. ^[15]; Hoppe, E.W. ^[3]; Howard, S. ^[10]; Howe, M. A. ^[15]; Jasinski, B R. ^[9]; Keeter, K.J. ^[17]; Kidd, M. F. ^[18]; Konovalov, S.I. ^[6]; Kouzes, R. T. ^[3]; LaFerriere, B. D. ^[3]; Leon, J. ^[1]; MacMullin, J. ^[15]; Martin, R. D. ^[9]; Meijer, S. J. ^[15]; Mertens, S. ^[2]; Orrell, J. L. ^[3]; O'Shaughnessy, C. ^[14]; Poon, A.W.P. ^[2]; Radford, D. C. ^[5]; Rager, J. ^[14]; Rielage, K. ^[13]; Robertson, R.G.H. ^[1]; Romero-Romero, E. ^[11]; Shanks, B. ^[14]; Shirchenko, M. ^[7]; Snyder, N ^[9]; Suriano, A. M. ^[10]; Tedeschi, D ^[16]; Trimble, J. ^[14]; Varner, R. L. ^[5]; Vasilyev, S. ^[7]; Vetter, K. ^[2]; Vorren, K. ^[15]; White, B. R. ^[5]; Wilkerson, J. F. ^[19]; Wiseman, C. ^[16]; Xu, W. ^[13]; Yakushev, E. ^[7]; Yu, C.-H. ^[5]; Yumatov, V. ^[6]; Zhitnikov, I ^[7]

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1. University of Washington, Seattle
2. Lawrence Berkeley National Laboratory (LBNL)
3. Pacific Northwest National Laboratory (PNNL)
4. University of South Carolina/Oak Ridge National Laboratory (ORNL)
5. Oak Ridge National Laboratory (ORNL)
6. Institute of Theoretical & Experimental Physics (ITEP), Moscow, Russia
7. Joint Institute for Nuclear Research, Dubna, Russia
8. Duke University/TUNL
9. University of South Dakota
10. South Dakota School of Mines and Technology
11. University of Tennessee, Knoxville (UTK)
12. Osaka University, Japan
13. Los Alamos National Laboratory (LANL)
14. University of North Carolina, Chapel Hill / Triangle Universities Nuclear Laboratory, Durham, NC
15. University of North Carolina / Triangle Universities Nuclear Lababoratory, Durham
16. University of South Carolina, Columbia
17. Black Hills State University, Spearfish, South Dakota
18. Tennessee Technological University (TTU)
19. UNC/Triangle Univ. Nucl. Lab, Durham, NC/ORNL

The MAJORANA Collaboration will seek neutrinoless double beta decay (0 nu beta beta) in Ge-76 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.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1343520
• Resource Relation: Journal Volume: 1672; Conference: 5th International Workshop in Low Radioactivity Techniques - Seattle, California, United States of America - 3/18/2015 12:00:00 AM-3/20/2015 12:00:00 AM
• Country of Publication: United States
• Language: English