A proposal for improving the noise floor of the gravitational wave antenna Niobe

K.L. Ribeiro; Eugene Ivanov; David Blair; Michael Tobar; O.D. Aguiar; C. Frajuca

doi:10.1088/0264-9381/19/7/400

A proposal for improving the noise floor of the gravitational wave antenna Niobe

K.L. Ribeiro, Eugene Ivanov, David Blair, Michael Tobar, O.D. Aguiar, C. Frajuca

Graduate Research School

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

The gravity wave detector at the University of Western Australia is based on a bending flap of 0.45 kg tuned near the fundamental resonant frequency of a 1.5 tonne resonant bar of 7 10 Hz. The displacement of the bending flap is monitored with a 9.5 GHz superconducting re-entrant cavity transducer. The performance of the transducer is related to the development of a low-noise microwave pump oscillator to drive the transducer. In this study we describe how to improve the quality of the existing microwave pump oscillator using a second servo frequency control system.

Original language	English
Pages (from-to)	1967-1972
Journal	Classical and Quantum Gravity
Volume	19
DOIs	https://doi.org/10.1088/0264-9381/19/7/400
Publication status	Published - 2002

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abstract = "The gravity wave detector at the University of Western Australia is based on a bending flap of 0.45 kg tuned near the fundamental resonant frequency of a 1.5 tonne resonant bar of 7 10 Hz. The displacement of the bending flap is monitored with a 9.5 GHz superconducting re-entrant cavity transducer. The performance of the transducer is related to the development of a low-noise microwave pump oscillator to drive the transducer. In this study we describe how to improve the quality of the existing microwave pump oscillator using a second servo frequency control system.",

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AU - Blair, David

AU - Tobar, Michael

AU - Aguiar, O.D.

AU - Frajuca, C.

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AB - The gravity wave detector at the University of Western Australia is based on a bending flap of 0.45 kg tuned near the fundamental resonant frequency of a 1.5 tonne resonant bar of 7 10 Hz. The displacement of the bending flap is monitored with a 9.5 GHz superconducting re-entrant cavity transducer. The performance of the transducer is related to the development of a low-noise microwave pump oscillator to drive the transducer. In this study we describe how to improve the quality of the existing microwave pump oscillator using a second servo frequency control system.

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DO - 10.1088/0264-9381/19/7/400

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SN - 0264-9381

VL - 19

SP - 1967

EP - 1972

JO - Classical and Quantum Gravity

JF - Classical and Quantum Gravity

ER -

A proposal for improving the noise floor of the gravitational wave antenna Niobe

Abstract

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