Effect of cosmic rays on the resonant gravitational wave detector NAUTILUS at temperature T=1.5 K

Details Effect of cosmic rays on the resonant gravitational wave detector NAUTILUS at temperature T=1.5 K Effect of cosmic rays on the resonant gravitational wave detector NAUTILUS at temperature T=1.5 K

2002-06-26

arxiv.org/abs/gr-qc/0206079v1

Phys.Lett.B540:179-184,2002

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

7 pages, 3 figures, 2 tables. Accepted by Physics Letters B

Scientific paper

10.1016/S0370-2693(02)02143-3

The interaction between cosmic rays and the gravitational wave bar detector NAUTILUS is experimentally studied with the aluminum bar at temperature of T=1.5 K. The results are compared with those obtained in the previous runs when the bar was at T=0.14 K. The results of the run at T = 1.5 K are in agreement with the thermo-acoustic model; no large signals at unexpected rate are noticed, unlike the data taken in the run at T = 0.14 K. The observations suggest a larger efficiency in the mechanism of conversion of the particle energy into vibrational mode energy when the aluminum bar is in the superconductive status.

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