Abstract
Liquid scintillators loaded with indium up to 200 g/l have been made to study the feasibility of detecting solar neutrinos by the $^{115}\mathrm{In}$ inverse $\ensuremath{\beta}$ reaction scheme of Raghavan. To evaluate the background contribution due to the natural $\ensuremath{\beta}$ decay of $^{115}\mathrm{In}$, we have measured its $\ensuremath{\beta}$ spectrum and find ${T}_{\frac{1}{2}}=4.41(25)\ifmmode\times\else\texttimes\fi{}{10}^{14}$ y and ${E}_{\mathrm{endpoint}}=482(15)$ keV. A direct counting indium detector of solar neutrinos appears feasible and possible configurations for such an experiment are briefly discussed.
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