The MAJORANA Project
Journal Article
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· Journal of Physics. Conference Series (Online)
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- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Univ. of North Carolina, Chapel Hill, NC (United States); Triangle Univ. Nuclear Lab., Durham, NC (United States)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Univ. of Washington, Seattle, WA (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of South Carolina, Columbia, SC (United States)
- North Carolina State Univ., Raleigh, NC (United States); Triangle Univ. Nuclear Lab., Durham, NC (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Inst. for Theoretical and Experimental Physics, Moscow (Russia)
- Univ. of Chicago, IL (United States)
- Joint Inst. for Nuclear Research (JINR), Dubna (Russian Federation)
- Univ. of Tennessee, Knoxville, TN (United States)
- Univ. of South Carolina, Columbia, SC (United States)
- Osaka Univ., Suita (Japan)
- Duke Univ., Durham, NC (United States); Triangle Univ. Nuclear Lab., Durham, NC (United States)
- Univ. of Alberta, Edmonton, AB (Canada)
- Univ. of South Dakota, Vermillion, SD (United States)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United State)
- Queen's Univ., Kingston, ON (Canada)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
- North Carolina State Univ., Raleigh, NC (United States)
Building a 0vββ experiment with the ability to probe neutrino mass in the inverted hierarchy region requires the combination of a large detector mass sensitive to 0vββ, on the order of 1-tonne, and unprecedented background levels, on the order of or less than 1 count per year in the 0vββ signal region. The Majorana Collaboration proposes a design based on using high-purity enriched 76Ge crystals deployed in ultra- low background electroformed Cu cryostats and using modern analysis techniques that should be capable of reaching the required sensitivity while also being scalable to a 1-tonne size. To demonstrate feasibility, the collaboration plans to construct a prototype system, the Majorana Demonstrator, consisting of 30 kg of 86% enriched 76Ge detectors and 30 kg of natural or isotope-76-depleted Ge detectors. We plan to deploy and evaluate two different Ge detector technologies, one based on a p-type configuration and the other on n-type.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1228360
- Report Number(s):
- PNNL-SA--102132; KB0401022
- Journal Information:
- Journal of Physics. Conference Series (Online), Journal Name: Journal of Physics. Conference Series (Online) Journal Issue: 1 Vol. 173; ISSN 1742-6596
- Publisher:
- Institute of Physics (IOP)
- Country of Publication:
- United States
- Language:
- English
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