Experimental study of high energy electron interactions in a superconducting aluminum alloy resonant bar
Abstract
Peak amplitude measurements of the fundamental mode of oscillation of a suspended aluminum alloy bar hit by an electron beam show that the amplitude is enhanced by a factor ∼3.5 when the material is in the superconducting state. This result is consistent with the cosmic ray observations performed by the resonant gravitational wave detector NAUTILUS, made of the same alloy, when operated in the superconducting state. A comparison of the experimental data with the predictions of the model describing the underlying physical process is also presented.
- Publication:
-
Physics Letters A
- Pub Date:
- May 2009
- DOI:
- 10.1016/j.physleta.2009.03.043
- arXiv:
- arXiv:0901.1220
- Bibcode:
- 2009PhLA..373.1801B
- Keywords:
-
- 04.80.Nn;
- 74.70.Ad;
- 61.82.Bg;
- 65.60.+a;
- Gravitational wave detectors and experiments;
- Metals;
- alloys and binary compounds;
- Metals and alloys;
- Thermal properties of amorphous solids and glasses: heat capacity thermal expansion etc.;
- General Relativity and Quantum Cosmology;
- Physics - Instrumentation and Detectors
- E-Print:
- Phys.Lett.A373:1801-1806,2009