Indium-loaded liquid scintillator for low-energy solar-neutrino spectroscopy

Details Indium-loaded liquid scintillator for low-energy solar-neutrino spectroscopy Indium-loaded liquid scintillator for low-energy solar-neutrino spectroscopy

Jul 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978phrvl..41...63p&link_type=abstract

Physical Review Letters, vol. 41, July 3, 1978, p. 63-66.

Physics

6

Indium, Scintillation Counters, Solar Neutrinos, Solar Spectra, Energy Spectra, Nuclear Reactions, Organic Liquids, Proton-Proton Reactions, Radiation Detectors, Radioactive Decay, Stellar Models, Stellar Spectra

Scientific paper

The reaction In-115(nu,e-)excited Sn-115 is proposed for an inverse beta scheme to detect solar neutrinos from the p-p reaction. It is noted that the scheme has a neutrino energy threshold of only 128-keV and can therefore be used to observe neutrino propagation. Design characteristics for a neutrino detector containing 200 g/l In are discussed with reference to the high neutron cross section of indium. Background beta decay of indium is taken into account with a 51.2 g/l Sn-loaded scintillator. The cell size of the detectors is chosen to be just large enough to respond to the 116-keV gamma ray, whereby a cascading 498-keV gamma ray is detected in a neighboring cell with a resolving time of 5 nanoseconds.

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