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Vibrational excitation induced by electron beam and cosmic rays in normal and superconductive aluminum bars

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 >0.54K, 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 ...

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Publication status:
Published

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Publisher copy:
10.1016/j.nima.2011.08.028

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Journal:
NUCLEAR INSTRUMENTS and METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
Volume:
659
Issue:
1
Pages:
289-298
Publication date:
2011-12-11
DOI:
ISSN:
0168-9002
URN:
uuid:c41ad08e-a2ba-4342-94b1-b1e9e3389280
Source identifiers:
206335
Local pid:
pubs:206335

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