
TY  - JOUR
A1  - Tobar, ME 
A1  - Blair, DG 
A1  - Ivanov, EN 
A1  - van Kann, F 
A1  - Linthorne, NP 
A1  - Turner, PJ 
A1  - Heng, IS 
T1  - The University of Western Australia?s Resonant-bar Gravitational Wave Experiment
JF  - Australian Journal of Physics
JO  - Aust. J.  Phys.
Y1  - 1995
VL  - 48
IS  - 6
SP  - 1007
EP  - 1026
KW  - 
UR  - https://doi.org/10.1071/PH951007 
N2  - The cryogenic resonant-mass gravitational radiation antenna at the University of Western Australia (UWA) has obtained a noise temperature of <2 mK using a zero order predictor filter. This corresponds to aIms burst strain sensitivity of 7x 10-19 . The antenna has been in continuous operation since August 1993. The antenna operates at about 5 K and consists of a 1· 5 tonne niobium bar with a 710 Hz fundamental frequency, and a closely tuned secondary mass of 0·45 kg effective mass. The vibrational state of the secondary mass is continuously monitored by a 9·5 GHz superconducting parametric transducer. This paper presents the current design and operation of the detector. From a two-mode model we show how we calibrate, characterise and theoretically determine the sensitivity of our detector. Experimental results confirm the theory. 
ER  -

