Limits on Sensitivity of Large Silicon Bolometers for Solar Neutrino Detection

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Science  31 Jul 1987:
Vol. 237, Issue 4814, pp. 507-509
DOI: 10.1126/science.237.4814.507


Estimates are given for ultimate limits on background in proposed direct-counting measurements of neutrino scattering from large silicon crystals. Methods of background reduction are discussed. In the best case, the limiting backgrounds due to activities from cosmic-ray spallation of silicon would be less than the expected true event rate for reactor neutrino measurements of coherent neutral-current scattering from silicon nuclei. Considerable reduction of the estimated high-energy backgrounds would be required for a good signal-to-noise ratio in solar neutrino detection.