Author/Authors :
Bassan، نويسنده , , M. and Buonomo، نويسنده , , B. and Cavallari، نويسنده , , G. and Coccia، نويسنده , , E. and DʹAntonio، نويسنده , , S. and Fafone، نويسنده , , V. and Foggetta، نويسنده , , L.G. and Ligi، نويسنده , , C. and Marini، نويسنده , , A. and Mazzitelli، نويسنده , , G. and Modestino، نويسنده , , G. and Pizzella، نويسنده , , G. and Quintieri، نويسنده , , L. and Ronga، نويسنده , , F. and Valente، نويسنده , , P. and Vinko، نويسنده , , S.M.، نويسنده ,
Abstract :
We report new measurements of the acoustic excitation of an Al5056 superconductive bar when hit by an electron beam, in a previously unexplored temperature range, down to 0.35 K. These data, analyzed together with previous results of a dedicated experiment obtained for T > 0.54 K , show a vibrational response enhanced by a factor ∼ 4.9 with respect to that measured in the normal state. This enhancement explains the anomalous large signals due to cosmic rays previously detected in the NAUTILUS gravitational wave detector.
