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|Title:||Development of a 1.5-tonne niobium gravitational radiational antenna|
|Authors:||Veitch, PJ;Blair, DG;Linthorne, NP;Mann, LD;Ramm, DK|
|Publisher:||American Institute of Physics|
|Description:||Copyright @ American Institute of Physics|
A 1.5‐tonne Nb gravitational radiation antenna is described. Problems associated with a noncontacting magnetically levitated parametric upconverter transducer are discussed, and a system using a bonded microwave reentrant cavity and bonded mechanical impedance transformer is described and analyzed in detail. It is shown that such an antenna can be expected to achieve a noise temperature of ∼1 mK. An ultralow phase noise tunable microwave source for the transducer pump signal is described, as well as precision bonding techniques which yield a mechanical positioning accuracy of 10−6 m, and a reproducibility of 10−8 m.
The research was supported by the Australian Research Grants Scheme and the Australian Telecommunications and Electronics Research Board.
|Standard no:||Review of Scientific Instruments, 58(10): 1910-1916, Oct 1987|
|Appears in Collections:||Dept of Life Sciences Research Papers|
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