This title appears in the Scientific Report :
2020
Please use the identifier:
http://hdl.handle.net/2128/27056 in citations.
Extraction of Bi-210 via Po-210 for CNO neutrino detection with Borexino
Extraction of Bi-210 via Po-210 for CNO neutrino detection with Borexino
Borexino is a 280-ton liquid scintillator detector located at the Laboratori Nazionali del Gran Sasso, Italy. Its current primary goal is the detection of neutrinos from the CNO cycle in the Sun using both counting and spectral shape analyses. The main challenge is posed by the similar spectral shap...
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Personal Name(s): | Kumaran, Sindhujha (Corresponding author) |
---|---|
Göttel, Alexandre / Basilico, Davide / Ding, Xuefeng | |
Contributing Institute: |
Experimentelle Hadrondynamik; IKP-2 |
Imprint: |
2020
|
Conference: | Neutrino 2020, Virtual (Chicago) (United States), 2020-06-22 - 2020-07-02 |
Document Type: |
Poster |
Research Program: |
Cosmic Matter in the Laboratory |
Subject (ZB): | |
Link: |
Get full text OpenAccess |
Publikationsportal JuSER |
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520 | |a Borexino is a 280-ton liquid scintillator detector located at the Laboratori Nazionali del Gran Sasso, Italy. Its current primary goal is the detection of neutrinos from the CNO cycle in the Sun using both counting and spectral shape analyses. The main challenge is posed by the similar spectral shapes of CNO neutrinos and the 210Bi background, a beta emitter. A measurement of the 210Bi rate would greatly improve Borexino's sensitivity to CNO neutrinos. Ideally, 210Bi should be in secular equilibrium with 210Po and the measurement of 210Po, an alpha emitter, is possible through pulse-shape discrimination techniques. A thermal insulation campaign performed in 2015 has stabilised the detector, thereby reducing the convective motion of 210Po from peripheral sources. This poster will present our strategy to extract the 210Bi from a stable region near the center of the detector using different methods. | ||
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