New suspension system for the gravitational wave bar detector AURIGA

被引：8

作者：

Bignotto, M

Bonaldi, M

Cerdonio, M

Conti, L

Penasa, F

Prodi, GA

Soranzo, G

Taffarello, L

Zendri, JP

机构：

[1] Univ Padua, Dept Phys, I-35100 Padua, Italy

[2] Ist Nazl Fis Nucl, Padova Sect, I-35100 Padua, Italy

[3] Ist Nazl Fis Nucl, I-38050 Trento, Italy

[4] CNR, ITC, Ist Foton & Nanotecnol, I-38050 Trento, Italy

[5] Univ Trent, Dept Phys, I-38050 Trento, Italy

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2005年 / 76卷 / 08期

关键词：

D O I：

10.1063/1.1988107

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We report on the design of the new suspension system for the gravitational wave bar detector AURIGA. The system was designed with the aid of finite element modeling simulations with the goal of achieving at least -240 dB of vibration reduction at 900 Hz in a cryogenic environment, while preserving a high mechanical quality factor. We report room temperature measurements of the suspension core stage, mode frequencies, and attenuation and we discuss them on the basis of the simulation predictions. The suspension system is currently installed in the detector, which is properly working at the operating temperature of 4.2 K. The observed improvements related to the suspension design are reported and discussed. (c) 2005 American Institute of Physics.

引用

页码：1 / 9

页数：9

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