Réunion ET France 2025

Name: Réunion ET France 2025
Start: 2025-10-07T14:00:00+02:00
End: 2025-10-08T14:00:00+02:00
Location: IP2I

7 oct. 2025, 14:00 → 8 oct. 2025, 14:00 Europe/Paris

Dirac/RdC-Amphithéâtre (IP2I)

Dirac/RdC-Amphithéâtre

IP2I

Institut de Physique des 2 infinis de Lyon Campus LyonTech – La Doua – Bâtiment Paul Dirac 4, rue Enrico Fermi 69622 Villeurbanne Cedex https://www.ip2i.in2p3.fr/pratiques/

160

Description

Zoom connection:

https://cern.zoom.us/j/67206293810?pwd=gj55PVnna5NGq1aaWZo5vhfqzkyRGe.1

Google map to reach IP2I from the tramway station "Université Lyon 1"

The meeting is following a Virgo-France meeting on Monday/Tuesday: https://indico.in2p3.fr/event/36934/ (independant registration).

Besoin d'informations supplémentaires:

patrice.verdier@in2p3.fr

loic.rolland@lapp.in2p3.fr

christian.olivetto@ijclab.in2p3.fr

myriam.zerrad@fresnel.fr

Inscription

Inscriptions

Participants

Alexandra Carrez
Alexandre Lacroix
Angélique Lartaux
Anne Daumas
Christian Olivetto
Damir Buskulic
Danièle Steer
Eleonora Capocasa
Francois Gautier
Jacques DING
Laurent PINARD
Manuel Andia
Mathieu Schoor
Matteo Barsuglia
Maxime LE JEAN
Michael HARTMAN
Michele Mancarella
Myriam ZERRAD
Nicola Tamanini
Romain Gouaty
Stéphane PERRIES
Susanna Diana VERGANI
Sylvain Chaty
Tito DAL CANTON
Viola Sordini
Yuhang Zhao
+10

mar. 7 octobre
- mar. 7 oct.
- mer. 8 oct.
- 14:00 → 15:00
  
  Einstein Telescope: Status and News, synergies with EGO-Virgo, Discussion 1h
  
  Orateurs: Loïc Rolland (CNRS/LAPP), M. Patrice Verdier (IP2I Lyon - IN2P3)
  
  2025.10.08 ET-France - Intro.pdf
- 15:00 → 15:20
  OSB Session
  - 15:00
    
    Division 4 Report: multimessenger physics 20m
    
    Orateur: Susanna Diana VERGANI (CNRS-Observatoire de Paris)
    
    ETfrance2025.pdf
- 15:20 → 16:00
  ISB Session
  - 15:20
    
    Optical design layout 20m
    
    Orateurs: Jerome DEGALLAIX (Laboratoire des Matéraux Avancés), Jerome Degallaix (LMA - IP2I)
    
    ET_Optical_Design.pdf
  - 15:40
    
    Coating des mirroirs pour ET 20m
    
    Orateur: Benoit Sassolas (IP2I/LMA)
    
    ET-France 2025.pdf
- 16:00 → 16:30
  
  Pause café 30m
- 16:30 → 18:00
  PO Session
  - 16:30
    
    ET-PP WP5: Project Office & Engineering Dpt 30m
    
    Orateur: M. Christian Olivetto (CNRS/IN2P3)
    
    ET-PP_Status&Future.pptx
  - 17:00
    
    Développements pour les Tubes à vide 20m
    
    Orateur: Alexandre Lacroix (LAPP)
    
    Réunion ET France Tube à vide.pptx
    
    Réunion ET France Tube à vide V2.pdf
    
    Réunion ET France Tube à vide V2.pptx
  - 17:20
    
    Analyse de risque 20m
    
    Orateur: Ghada MAHMOUD
    
    Risk Analysis ET France.pdf
  - 17:40
    
    PBS database and PO software development 20m
    
    Orateur: M. Oussama El Mecherfi
    
    ip2i.pdf
mer. 8 octobre
- mar. 7 oct.
- mer. 8 oct.
- 09:00 → 10:00
  ISB Session
  - 09:00
    
    Modelling Newtonian noise of acoustic in the caverns of the ET gravitational wave detector 20m
    
    Among the noises affecting GW detectors, Newtonian noise of seismic or acoustic origin could limit sensitivity at low frequencies, below a few tens of Hz. This presentation focuses on modeling Newtonian noise of acoustic origin, resulting from technical noises in caverns and experimental halls. A significant contribution to this technical noise is specifically linked to the operation of the air conditioning system, which is essential to ensure the thermal stability and cleanliness of these rooms. The acoustic pressure present in the environment is responsible for small fluctuations in density. The fluctuating gravitational field that is induced directly causes random forces on sensitive optical elements, such as the interferometer's test masses. Acoustic Newtonian Noise is quantified using a numerical model of the acoustic field in an arm-end cavern. This model describes the modal response of the room under the effect of acoustic sources equivalent to the vents of the ventilation system, which allows the calculation of Newtonian noise based on equipment parameters (rotation speed, vent position). The criticality of this noise source for the detector is discussed, given the sensitivity targeted by ET in the low frequency range. Possible solutions for reducing Newtonian acoustic noise are examined.
    
    Orateurs: Francois Gautier (LAUM, Laboratoire d'Acoustique de l'Université du Mans, UMR CNRS 6613), L. Maurin, Matteo Barsuglia, S. Terrien
    
    25-10-08-Journee_ETFrance_LAUM.pptx
  - 09:20
    
    Performance of multiple filter-cavity schemes for frequency-dependent squeezing in gravitational-wave detectors 20m
    
    Orateur: Jacques DING (Université Paris Cité)
    
    two FC vs CFC.pdf
  - 09:40
    
    Activités squeezing en France 20m
    
    Orateurs: Angélique Lartaux (IJCLab), Eleonora Capocasa
    
    2025_10_08_ET_France_Squeezing.pdf
- 10:00 → 10:30
  
  Pause café 30m
- 10:30 → 12:10
  OSB Session
  - 10:30
    
    EIB (computing et software) status 20m
    
    Orateur: M. Patrice Verdier (IP2I Lyon - IN2P3)
    
    2025.10.08 ET-France - EIB.pdf
  - 10:50
    
    Mock Data Challenge 20m
    
    Orateur: Tania Regimbau (LAPP)
    
    ETMDC_ETFrance_Lyon_2025.pdf
  - 11:10
    
    Status of OSB Division 5: Synergies with other GW observatories 20m
    
    Orateur: Nicola Tamanini (L2I Toulouse, CNRS/IN2P3, Université de Toulouse)
  - 11:30
    
    Status of Division 9 Common Tools 20m
    
    Orateur: Michele Mancarella (Aix-Marseille Université)
  - 11:50
    
    Status of Division 6 Nuclear Physics 20m
    
    Orateur: Micaela Oertel (Observatoire astronomique de Strasbourg, CNRS-Université de Strasbourg)
    
    et_france_div6.pdf
- 11:50 → 12:30
  
  Discussion