Summary
The quality factorQ of a small gravitational-wave antenna has been measured between 4.2 and 1.1 K. The dependence ofQ onT can be fitted by an expression linear in 1/T as well as by the formulaQ=Q 0 exp [Δε/kT]. In the latter case, one finds Δε≈7·10−5eV.
Riassunto
Si presentano i risultati delle misure eseguite fra 4.2 e 1.1 K del fattore di meritoQ di una piccola antenna gravitazionale. La dipendenza diQ daT può essere rappresentata da un'espressione lineare di 1/T come anche a mezzo della formulaQ=Q 0 exp [Δε/kT]. In questo secondo caso si trova Δε≈7·10−5 eV.
Резюме
В области между 4.2 и 1.1 К был измерен фактор качестваQ малой антенны гравитационных волн. ЗависимостьQ отT может быть аппроксимирована линейным выражением по 1/T, а а также формулойQ=Q 0 exp [Δε/kT]. В последнем случае находим, что Δε≈7·10−5эВ.
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Amaldi, E., Cosmelli, C., Giovanardi, U. et al. Measurements of the merit factorQ of an aluminium gravitational-wave antenna between 4.2 and 1.1 K. Nuov Cim B 41, 327–333 (1977). https://doi.org/10.1007/BF02740887
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DOI: https://doi.org/10.1007/BF02740887