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II. Workshop on ET-LF TM Tower Integration

25–27 Mar 2025
IJCLab in Orsay
Europe/Rome timezone

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Contribution List

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  1. 6. Introduction, scope and status of ET-LF TM tower integration
    Steffen Grohmann (KIT)
    25/03/2025, 14:00
  2. 7. Status of infrastructure planning
    Patrick Werneke
    25/03/2025, 14:45
  3. 8. ET's Tower nodes: classification and subsystem integration
    Romano Meijer (Nikhef)
    25/03/2025, 15:30

    Methodology of efforts ongoing to classify ET's towers, following from the noise budget and high-level interferometer architecture. Discussion on the set of boundary conditions that are to be established for a solution-agnostic framework, from which we can do comparative design analysis.

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  4. 9. Stability analyses of IP base ring integration options
    Gregory Iaquaniello
    25/03/2025, 16:30
  5. 2. ET Activities at LNF: Status and Future Directions
    Luisa Spallino
    25/03/2025, 17:15

    The primary objective of the activities conducted at LNF is to investigate and validate innovative strategies for the active mitigation of ice formation and electrostatic charging on mirrors, as well as to collaborate with EGO/Virgo on the passive mitigation of charge emission from ion pumps. These efforts are currently in progress, with preliminary results from prototype systems demonstrating...

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  6. 1. The payloads for the Test Masses of the ET-LF and ET-HF interferometers: status and perspectives
    Paola Puppo
    26/03/2025, 09:00

    The payloads are the last stage suspensions for the test masses. They are designed to fullfil the requirements coming from the control system and and the sensitivity of the detector. The status of the designs for the payloads, both in the LF and HF interferometers, will be presented.

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  7. 4. The reference solution: a Superattenuator for Einstein Telescope
    Francesca Spada
    26/03/2025, 09:45

    The Superattenuator - a cornerstone in seismic isolation systems for ground-based interferometers - is recognized as the seismic isolation reference solution for the Einstein Telescope in both the 2011 and 2020 Technical Reference Documents.
    As seismic isolation system design progresses, evaluating the impact of targeted interventions on the performance of existing solutions is essential for...

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  8. 3. Super-Attenuator Design Concept Integrating an Active Platform and an Inverted Pendulum
    Thomas Giordano (ULiège)
    26/03/2025, 11:00

    This work originates from the aim of reducing the height of the 17 m suspension chain considered in the ET 2011 Conceptual Design Report and its 2020 Update. The presentation focuses on the current state of design and modelling of a candidate solution integrating both an inverted pendulum and an active platform. This key feature allows reducing the height of the seismic attenuation chain,...

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  9. 5. An Active platform for the Inverted Pendulum of the Superattenuator
    Franco Frasconi (INFN Pisa)
    26/03/2025, 11:45

    The Seismic Isolation System of the Advanced VIRGO, based on the working principle of a multi-stage pendulum hung to a three legs mechanical structure of the Inverted Pendulum, is equipped with 3 Piezoelectric actuators encapsulated with a foot structure. So far,these tools were never used to compensate seismic motion at very low frequencies regime due to missing high sensitivity sensor and...

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