Measurement of the C-14 abundance in a low-background liquid scintillator.
- Alimonti G.
- Angloher G.
- Arpesella C.
- Balata M.
- Bellini G.
- Benziger J.
- Bonetti S.
- Cadonati L.
- Calaprice F. P.
- Cecchet G.
- Chen M.
- Darnton N.
- Deutsch M.
- Elisei F.
- von Feilitzsch F.
- Galbiati C.
- Gatti F.
- Giammarchi M. G.
- Giugni D.
- Goldbrunner T.
- Golubchikov A.
- Goretti A.
- Hagner T.
- Hartmann F. X.
- von Hentig R.
- Heusser G.
- Ianni A.
- Jochum J.
- Johnson M.
- Laubenstein M.
- Lombardi P.
- Magni S.
- Malvezzi S.
- Manno I.
- Manuzio G.
- Masetti F.
- Mazzucato U.
- Meroni E.
- Neff M.
- Nostro A.
- Oberauer L.
- Preda A.
- Raghavan R. S.
- Ranucci G.
- Resconi E.
- Ruscitti M.
- Scardaoni R.
- Schonert S.
- Smirnov O.
- Tartaglia R.
- Testera G.
- Ullucci P.
- Vogelaar R. B.
- Vitale S.
- Zaimidoroga O.
- DE BARI, ANTONIO
- PEROTTI, ANGELO
Publication date
January 1998
DOIAbstract
The C-14/C-12 ratio in 4.8 m(3) of high-purity liquid scintillator was measured at (1.94 +/- 0.09) x 10(-18), the lowest C-14 abundance ever measured. At this level the spectroscopy of low-energy solar neutrinos, in particular a measurement of the Be-7 neutrino flux, will not be obstructed by the C-14 beta decay intrinsic to a liquid scintillator detector. A comprehensive study of the deviation of the shape of the C-14 beta spectrum from the allowed statistical shape reveals consistent results with recent observations and calculations. Possible origins of the C-14 in the liquid scintillator are discussed
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