Present status of MiniGRAIL


Ackermann, R. and Benzaim, Y. and Frossati, G. and Gottardi, L. and Karbalai-Sadegh, A. and Reincke, W. and Shumack, A. and Usenko, O. and Waard, A. de and Flokstra, J. and Podt, M. and Bassan, M. and Coccia, E. and Fafone, V. and Minenkov, Y. and Moleti, A. and Pallottino, G.V. and Rocchi, A. and Visco, M. (2005) Present status of MiniGRAIL. In: 10th Marcel Grossmann Meeting on General Relativity, 20-26 July 2003, Rio de Janeiro, Brazil.

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Abstract:The latest results of the measurements on the vibration isolation system of MiniGRAIL at room temperature as well as an overview of the results of the ultra-cryogenic tests with the dilution refrigerator are presented. Two types of capacitive transducers have been developed and tested separately in a cryogenic set-up. The rosette-design transducers have been mounted on the sphere and tested at low temperature. We also report the progress in developing a two-mode inductive transducer with an Al5056 resonator as a second resonating mass and a Nb film coil as superconducting pick-up loop. Furthermore, we developed and tested two double-SQUID systems based on two types of dc SQUIDs as sensors and a DROS as the preamplifier stage.
Item Type:Conference or Workshop Item
Copyright:© 2005 World Scientific
Science and Technology (TNW)
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Metis ID: 219639