The second/third generation interferometric gravitational wave detectors need not only strong attenuation at the observation band but also reduction of root mean square motion of the mirrors. Many kinds of mechanisms for isolation at low frequencies have been suggested for gravitational wave detectors. An inverted pendulum and geometric anti-spring filters are used in the isolator for KAGRA located in the Kamioka mine. We employed two layer tunnels to put the isolators onto the ground rock directly.
Seismic attenuation system (SAS) in the Kamioka mine / Takahashi, R.; Desalvo, R.; Yamamoto, K.; Uchiyama, T.; Sekiguchi, T.; Ishizaki, H.; Takamori, A.; Majorana, E.; Van Den Brand, J.; Hennes, E.; Bertolini, A.. - 210699(2015), pp. 2037-2039. (Intervento presentato al convegno The Thirteenth Marcel Grossmann Meeting tenutosi a Stockholm University, Sweden) [10.1142/9789814623995_0350].
Seismic attenuation system (SAS) in the Kamioka mine
Majorana E.;
2015
Abstract
The second/third generation interferometric gravitational wave detectors need not only strong attenuation at the observation band but also reduction of root mean square motion of the mirrors. Many kinds of mechanisms for isolation at low frequencies have been suggested for gravitational wave detectors. An inverted pendulum and geometric anti-spring filters are used in the isolator for KAGRA located in the Kamioka mine. We employed two layer tunnels to put the isolators onto the ground rock directly.| File | Dimensione | Formato | |
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