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Cozzini, C.; Henry, S.; Kraus, H.; Majorovits, B.; Mikhailik, V.; Ramachers, Y.; Tolhurst, A.J.B.; Angloher, G.; Hauff, D.; Ninkovic, J.; Petricca, F.; Proebst, F.; Seidel, W.; Stodolsky, L.; Bucci, C.; Feilitzsch, F. von; Jagemann, Th; Potzel, W.; Rau, W.; Razeti, M.
Physical review. C, Nuclear physics, 12/2004, Letnik: 70, Številka: 6Journal Article
The natural {alpha}-decay of {sup 180}W has been unambiguously detected for the first time. The {alpha} peak is found in a ({gamma}, {beta}, and neutron)-free background spectrum. This has been achieved by the simultaneous measurement of phonon and light signals with the CRESST (Cryogenic Rare Event Search with Superconducting Thermometers) cryogenic detectors. A half-life of T{sub 1/2}=(1.8{+-}0.2)x10{sup 18} years and an energy release of Q=2516.4{+-}1.1(stat.){+-}1.2(sys.) keV have been measured. New limits are also set on the half-lives of the other naturally occurring tungsten isotopes.
