'Seismic noise' diaporamas de présentation

External forces from heat links in cryogenic suspensions

External forces from heat links in cryogenic suspensions. D1, ICRR, Univ. Tokyo Takanori Sekiguchi. GWADW in Hawaii. About this Talk. Estimate seismic noise introduced from heat links. Discuss how to achieve cooling and seismic isolation at the same time. Seismic Noise from Heat Links.

604 views • 50 slides

Seismic Noise, a tool for evaluating site amplification

Seismic Noise, a tool for evaluating site amplification. Giuliano Milana, Istituto Nazionale di Geofisica e Vulcanologia Via di Vigna Murata 605, 00143 Roma. 1) The chacteristics of seismic noise.

626 views • 42 slides

Virgo Status Report

Virgo Status Report. Patrice Hello, LAL-Orsay Orsay, June 11, 2008. OUTLINE. North End Tower Incident Spring detector work Commissioning results Virgo+ upgrade Advanced Virgo Status Perspective. Incident at the Virgo NE tower. Cascina, May 9, 2008

553 views • 37 slides

The VIRGO experiment The commissioning of VIRGO Towards a global network Conclusions

489 views • 30 slides

Suspended Mirror control: Learning through Virgo Experience E. Majorana - I.N.F.N. Pisa

Suspended Mirror control: Learning through Virgo Experience E. Majorana - I.N.F.N. Pisa Aspen GWAD February 16, 2004. Main elements of mirror suspension. Marionette. Reference Mass. 10 -14 @ 10 Hz.

376 views • 30 slides

Functioning of Piton de la Fournaise volcano inferred from continuous seismological observations

Functioning of Piton de la Fournaise volcano inferred from continuous seismological observations. F. Brenguier (1) , N. Shapiro (1), M. Campillo (2), V. Ferrazzini (3), Z. Duputel (3), O. Coutant (2), E. Rivemale (1), and A. Nercessian (1). 1. Institut de Physique du Globe de Paris.

364 views • 26 slides

A gradiometric measurement of G

XCIV Congresso Nazionale SIF Genova , 22-27 Settembre 2008. A gradiometric measurement of G. V. Iafolla, E. Fiorenza, C. Lefevre, S. Nozzoli, R. Peron, M. Persichini, A. Reale, F. Santoli Istituto di Fisica dello Spazio Interplanetario (IFSI/INAF), Roma, Italy. Gundlach et al.

330 views • 24 slides

Result of first test run of CLIO

Result of first test run of CLIO. T Akutsu 1 , S Telada 2 , T Uchiyama 1 , S Miyoki 1 , K Yamamoto 1 , M Ohashi 1 , K Kuroda 1 , N Kanda 3 and CLIO Collaboration. 1 ICRR, Univ. of Tokyo, 2 AIST, 3 OCU and CLIO Collaboration. Dec 18 2006 11 th GWDAW, Potsdam, Germany. Contents.

418 views • 23 slides

308 views • 22 slides

Environmental Disturbances: S4 and Pre-S5

Environmental Disturbances: S4 and Pre-S5. Seismic up-conversion Some peak identification for upper limits groups - VME produced - seismic/acoustic III. Seismic/acoustic mitigation -acoustic enclosures -floating the H2 dark port. Robert Schofield, U of O

362 views • 21 slides

331 views • 20 slides

Contents

LCGT Technical Review Suspension Point Interferometer for Parasitic Noise Reduction and an Additional IFO S.Miyoki (ICRR, Univ. of TOKYO). Contents. Parasitic noise in LCGT Heat link wires design as both a thermal conductor and a seismic noise isolator

285 views • 20 slides

Environmental Disturbances: Early S5 and S4

Environmental Disturbances: Early S5 and S4. HVAC flow rate reduction improves sensitivity II. Seismic up-conversion experiments S4 H1-H2 coincident events from site activity PEM injections Electronics rack diagnostic magnetometer Crab protection. Robert Schofield, U of O

302 views • 19 slides

S4 Environmental Disturbances

329 views • 19 slides

Detector Characterization of GEO600

285 views • 16 slides

Detector Characterization of GEO600

283 views • 16 slides

Adaptive Noise Cancellation: A Panacea

Adaptive Noise Cancellation: A Panacea. Evans, R. Adhikari. The Concept. 5000 Channels 1 GW Channel Signal = DARM - noise. Wiener Filter. Norbert Wiener, MIT. Block Toeplitz. Cross Correlation Matrix. Input Signal (PEM) Covariance Matrix. Wiener Filter Sim. H1. L1.

617 views • 15 slides

Tracking the origin of the seismic noise

Tracking the origin of the seismic noise. Tracking the origin of the seismic noise. Tracking the origin of the seismic noise. Apparent origin of the noise. Average sea wave height. winter. summer. Importance of scattering: a simple laboratory experiment with a few sources. C(A,X).

265 views • 12 slides

BS and Mirrors for the LCGT

BS and Mirrors for the LCGT. Norikatsu Mio, PSC Univ. of Tokyo Eiichi Hirose, ICRR Univ. of Tokyo December 13, 2011 CSIRO, Lindfield Australia. LCGT. 1 st stage: Room-temp. Operation ? Silica TM (ITM and ETM) 2 nd stage: Cryogenic Operation ? Sapphire TM. ETMY. Underground

211 views • 11 slides

The importance of prefiltering. The estimates are generally biased

The importance of prefiltering. The estimates are generally biased E{ f T ( ? )} = ? W T ( ? - ? ) f( ? ) d ? Seismic noise horizontal components recorded at UCB Estimated coherence can be 1,0 when no relation

119 views • 5 slides