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DOE OSTI · 22066613

Supersensitive SQUID/magnetostrictor detecting system

Golovashkin, Aleksander I·Zherikhina, L N·Tskhovrebov, Andrei M·Izmailov, G N
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Abstract

It is shown that using the state-of-the-art quantum interferometer (SQUID) with the resolution 10{sup -6} {Phi}{sub 0} Hz{sup -1/2} = 2.07 Multiplication-Sign 10{sup -21} Wb Hz{sup -1/2}, coupled to a magnetostrictor, playing the role of tensomagnetic transducer, it is possible to construct a system for detecting pressure variations with the ultimate sensitivity of 10{sup -13} Pa Hz{sup -1/2} and for measuring specific elongation with the sensitivity of 10{sup -24} Hz{sup -1/2}. The analysis of physical grounds of the inverse magnetostriction effect demonstrates concrete ways to essentially higher efficiency of tensomagnetic conversion. The estimates performed demonstrate the possibility of using the SQUID/magnetostrictor system as a detector of gravitational waves. Other possibilities of using this system for solving both fundamental and applied problems are also considered. (experimental techniques)

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46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICSEFFICIENCYELONGATIONGRAVITATIONAL WAVE DETECTORSINTERFEROMETERSMAGNETOSTRICTIONRESOLUTIONSENSITIVITYSQUID DEVICESTRANSDUCERS

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Golovashkin, Aleksander I, Zherikhina, L N, Tskhovrebov, Andrei M, Izmailov, G N. 2012-12-31. Supersensitive SQUID/magnetostrictor detecting system. https://doi.org/10.1070/qe2012v042n12abeh014918

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