Chinese Physics C > 2016, Vol. 40 > Issue(3): 033003 DOI: 10.1088/1674-1137/40/3/033003

Potential of geo-neutrino measurements at JUNO

1.
Science and Technology on Reliability and Environmental Engineering Laboratory, Beijing Institute ofSpacecraft Environment Engineering, Beijing 100094, China
2.
Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
3.
Department of Geology, University of Maryland, College Park, MD, USA 20742
4.
Forschungzentrum Jü

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Abstract：
The flux of geoneutrinos at any point on the Earth is a function of the abundance and distribution of radioactive elements within our planet. This flux has been successfully detected by the 1-kt KamLAND and 0.3-kt Borexino detectors, with these measurements being limited by their low statistics. The planned 20-kt JUNO detector will provide an exciting opportunity to obtain a high statistics measurement, which will provide data to address several questions of geological importance. This paper presents the JUNO detector design concept, the expected geo-neutrino signal and corresponding backgrounds. The precision level of geo-neutrino measurements at JUNO is obtained with the standard least-squares method. The potential of the Th/U ratio and mantle measurements is also discussed.
- geo-neutrinos,
- JUNO,
- precision,
- Th/U ratio,
- mantle

References

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Ran Han, Yu-Feng Li, Liang Zhan, William F McDonough, Jun Cao and Livia Ludhova. Potential of geo-neutrino measurements at JUNO[J]. Chinese Physics C, 2016, 40(3): 033003. doi: 10.1088/1674-1137/40/3/033003

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Received: 2015-10-08

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Supported in part by National Natural Science Foundation of China (11405056, 11305193, 11205176, 21504063), National Science Foundation of U.S. (EAR 1067983/1068097), Strategic Priority Research Program of the Chinese Academy of Sciences under Grant No. XDA10010100 and CAS Center for Excellence in Particle Physics (CCEPP)

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通讯作者:陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Potential of geo-neutrino measurements at JUNO

Corresponding author:Ran Han,

Corresponding author:Yu-Feng Li,

1. Science and Technology on Reliability and Environmental Engineering Laboratory, Beijing Institute ofSpacecraft Environment Engineering, Beijing 100094, China
2. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
3. Department of Geology, University of Maryland, College Park, MD, USA 20742
4. Forschungzentrum Jü

Received Date:2015-10-08
Available Online:2016-02-29

Fund Project:Supported in part by National Natural Science Foundation of China (11405056, 11305193, 11205176, 21504063), National Science Foundation of U.S. (EAR 1067983/1068097), Strategic Priority Research Program of the Chinese Academy of Sciences under Grant No. XDA10010100 and CAS Center for Excellence in Particle Physics (CCEPP)

Abstract:The flux of geoneutrinos at any point on the Earth is a function of the abundance and distribution of radioactive elements within our planet. This flux has been successfully detected by the 1-kt KamLAND and 0.3-kt Borexino detectors, with these measurements being limited by their low statistics. The planned 20-kt JUNO detector will provide an exciting opportunity to obtain a high statistics measurement, which will provide data to address several questions of geological importance. This paper presents the JUNO detector design concept, the expected geo-neutrino signal and corresponding backgrounds. The precision level of geo-neutrino measurements at JUNO is obtained with the standard least-squares method. The potential of the Th/U ratio and mantle measurements is also discussed.