Abstract
A modification of the LENS (Low Energy Neutrino Spectroscopy) project for spectroscopy of solar neutrinos with energies above about 715 keV on the basis of new technologies and solutions is examined. The respective detector employs \({}^{115}\)In nuclei as a target for neutrinos. The creation of a detector containing about 200 t of a scintillator loaded with 10 t of indium will make it possible to measure, within five years, the energy spectra of solar neutrinos from \({}^{7}\)Be, neutrinos from the CNO cycle, and \(pep\) neutrinos with small systematic errors. The detector was simulated in the form of a set of cells of a liquid scintillator doped with indium (about 10\({\%}\) in weight). Necessary technical conditions for detector cells are formulated, and the possible counting rate for events induced by internal and external backgrounds and characterized by an energy release of 600 to 1600 keV is estimated. It is shown that such a detector is implementable, in principle.
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Barabanov, I.R., Bezrukov, L.B., Gurentsov, V.I. et al. Detection of Intermediate-Energy Solar Neutrinos by Means of Neutrino Capture by \({}^{115}\)In Nuclei. Phys. Atom. Nuclei 85, 402–410 (2022). https://doi.org/10.1134/S1063778822040056
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DOI: https://doi.org/10.1134/S1063778822040056