Are AMS 7Be measurements for a lithium solar neutrino detector practical

Abstract An efficient, low-background method of measuring 7 Be is necessary to make a solar neutrino detector using lithium practical. Accelerator mass spectrometric 7 Be measurements with BeO sputter sources are inefficient because of the small molecule (atom) to ion conversion. By collecting the sputtered BeO, that has not been accelerated, on an aluminum electrode and preparing additional sources from the collected Be, the overall efficiency might be raised sufficiently so that a lithium solar neutrino detector would be practical.