Abstract
We suggest that dedicated scintillating crystals (DSC) may provide a way to detect low energy solar neutrinos and, possibly, galactic dark matter. DSC are scintillating monocrystals grown from a compound containing a large relative amount of the target material. The target element (or isotope) is chosen for its larger interaction cross-section and/or the specific signature it may provide, easing background rejection. A 115In target appears to be the natural choice for solar neutrinos, and we propose to grow high quality scintillating crystals made of a suitable indium compound. Several targets can be considered for the detection of galactic dark matter, depending on WIMP interaction properties. We mainly focus on the detection of Majorana fermions through inelastic scattering. We finally propose to investigate the feasibility of composite cryogenic devices based on scintillating crystals at low temperature. A good time resolution would be obtained through the detection of the light pulse even on large crystals, whereas the energy resolution would be provided by bolometric readout (sensitive to thermal phonons) and low temperature photosensitive devices.
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