Abstract
The Majorana Demonstrator is an ultra-low background physics experiment searching for the neutrinoless double beta decay of 76Ge. The Majorana Parts Tracking Database is used to record the history of components used in the construction of the Demonstrator. The tracking implementation takes a novel approach based on the schema-free database technology CouchDB. Transportation, storage, and processes undergone by parts such as machining or cleaning are linked to part records. Tracking parts provide a great logistics benefit and an important quality assurance reference during construction. In addition, the location history of parts provides an estimate of their exposure to cosmic radiation. A web application for data entry and a radiation exposure calculator have been developed as tools for achieving the extreme radio-purity required for this rare decay search.
Original language | English |
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Pages (from-to) | 52-62 |
Number of pages | 11 |
Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
Volume | 779 |
DOIs | |
State | Published - Apr 11 2015 |
Funding
This material is based upon work supported by the U.S. Department of Energy Office of Science, Office of Nuclear Physics under Award Numbers DE-AC02-05CH11231 , DE-AC52-06NA25396 , DE-FG02-97ER41041 , DE-FG02-97ER41033 , DE-FG02-97ER41041 , DE-FG02-97ER41042 , DE-SC0012612 , DE-FG02-10ER41715 , and DE-FG02-97ER41020 . We acknowledge support from the Particle and Nuclear Astrophysics Program of the National Science Foundation through grant numbers PHY-0919270 , PHY-1003940 , 0855314 , PHY-1202950 , MRI 0923142 and 1003399 . We acknowledge support from the Russian Foundation for Basic Research , Grant no. 12-02-12112 . This research used resources of the Oak Ridge Leadership Computing Facility, which is a DOE Office of Science User Facility supported under Contract DE-AC05-00OR22725 . This research used resources of the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility supported under Contract No. DE-AC02-05CH11231 . We acknowledge the support from the U.S. Department of Energy through the LANL / LDRD Program . We thank M.J. Giardinelli (Pacific Northwest National Laboratory) for review of an early draft of this paper. We thank our hosts and colleagues at the Sanford Underground Research Facility for their support.
Funders | Funder number |
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DOE Office of Science | DE-AC05-00OR22725 |
Office of Nuclear Physics | DE-AC02-05CH11231, DE-SC0012612, DE-AC52-06NA25396, DE-FG02-97ER41020, DE-FG02-97ER41042, DE-FG02-10ER41715, DE-FG02-97ER41033, DE-FG02-97ER41041 |
U.S. Department of Energy Office of Science | |
National Science Foundation | PHY-1003940, PHY-0919270, MRI 0923142, PHY-1202950 |
U.S. Department of Energy | |
Directorate for Mathematical and Physical Sciences | 0855314, 0923142, 1003940, 0919270, 1003399, 1202950 |
Laboratory Directed Research and Development | |
Los Alamos National Laboratory | |
Russian Foundation for Basic Research | 12-02-12112 |
Keywords
- Application software
- Component and materials tracking
- Low background
- Neutrinoless double beta decay