Explanipedia

Monte Carlo Analysis of the Intensification Factor of Design Response Spectra for Hoisted Loads Open

Carlo Zanoni · 2025

Seismic requirements play a crucial role in the design of mechanical systems for infrastructures located in earthquake-prone regions. This process becomes significantly more complex when non-linearities are present, making system-specific …

Accounting for material property uncertainty in the preliminary vibration analysis of opto-mechanical systems Open

Edoardo Dalla Ricca, Carlo Zanoni, Edoardo Maria Alberto Redaelli · 2024

In-depth analysis of LISA Pathfinder performance results: Time evolution, noise projection, physical models, and implications for LISA Open

M. Armano, H. Audley, J. Baird, Pierre Binétruy, M. Born , et al. · 2024

We present an in-depth analysis of the LISA Pathfinder differential acceleration performance over the entire course of its science operations, spanning approximately 500 days. We find: (1) The evolution of the Brownian noise that dominates…

Nano-Newton electrostatic force actuators for femto-Newton-sensitive measurements: System performance test in the LISA Pathfinder mission Open

M. Armano, H. Audley, J. Baird, M. Bassan, Pierre Binétruy , et al. · 2024

Electrostatic force actuation is a key component of the system of geodesic reference test masses (TM) for the LISA orbiting gravitational wave observatory and in particular for performance at low frequencies, below 1 mHz, where the observa…

Propagation of Uncertainty for the Vibration Analysis of Opto-Mechanical Systems Open

Edoardo Dalla Ricca, Carlo Zanoni, Edoardo Redaelli · 2024

NanoNewton electrostatic force actuators for femtoNewton-sensitive measurements: system performance test in the LISA Pathfinder mission Open

M. Armano, H. Audley, J. Baird, M. Bassan, Pierre Binétruy , et al. · 2023

Electrostatic force actuation is a key component of the system of geodesic reference test masses (TM) for the LISA orbiting gravitational wave observatory and in particular for performance at low frequencies, below 1 mHz, where the observa…

Transient acceleration events in LISA Pathfinder data: Properties and possible physical origin Open

M. Armano, H. Audley, J. Baird, Pierre Binétruy, M. Born , et al. · 2022

We present an in depth analysis of the transient events, or glitches, detected at a rate of about one per day in the differential acceleration data of LISA Pathfinder. We show that these glitches fall in two rather distinct categories: fas…

Transient acceleration events in LISA Pathfinder data: properties and\n possible physical origin Open

M. Armano, H. Audley, J. Baird, Pierre Binétruy, M. Born , et al. · 2022

We present an in depth analysis of the transient events, or glitches,\ndetected at a rate of about one per day in the differential acceleration data\nof LISA Pathfinder. We show that these glitches fall in two rather distinct\ncategories: …

First demonstration of the use of crab cavities on hadron beams Open

R. Calaga, A. Alekou, Fanouria Antoniou, R. B. Appleby, L Arnaudon , et al. · 2021

Many future particle colliders require beam crabbing to recover geometric luminosity loss from the nonzero crossing angle at the interaction point (IP). A first demonstration experiment of crabbing with hadron beams was successfully carrie…

Unveiling the faint ultraviolet Universe Open

Anita Zanella, Carlo Zanoni, Fabrizio Arrigoni Battaia, A. Rubin, A. F. Pala , et al. · 2021

With this paper we participate to the call for ideas issued by the European Space Agency to define the Science Program and plan for space missions from 2035 to 2050. In particular we present five science cases where major advancements can …

Estimation of the Electrostatic Effects in the LISA-Pathfinder Critical Test Mass Dynamics via the Method of Moments Open

Carlo Zanoni, D. Bortoluzzi · 2021

LISA-Pathfinder is an ESA space mission flown between 2015 and 2017 to\ndemonstrate a technological maturity sufficient for building a gravitational\nwaves telescope in space, such as the Laser Interferometer Space Antenna\n(LISA). A pair …

In-flight testing of the injection of the LISA Pathfinder test mass into a geodesic Open

D. Bortoluzzi, Davide Vignotto, Andrea Zambotti, M. Armano, H. Audley , et al. · 2020

ESA Voyage 2050 white paper: Unveiling the faint ultraviolet Universe Open

Anita Zanella, Carlo Zanoni, Fabrizio Arrigoni Battaia, Adam Rubin, A. F. Pala , et al. · 2019

New and unique science opportunities in several different fields of astrophysics are offered by conducting spectroscopic studies of the Universe in the ultraviolet (UV), a wavelength regime that is not accessible from the ground. We presen…

Unveiling the faint ultraviolet Universe Open

Anita Zanella, Carlo Zanoni, Fabrizio Arrigoni Battaia, A. Rubin, A. F. Pala , et al. · 2019

With this paper we participate to the call for ideas issued by the European Space Agency to define the Science Program and plan for space missions from 2035 to 2050. In particular we present five science cases where major advancements can …

Design studies of a compact superconducting rf crab cavity for future colliders using Nb/Cu technology Open

K. Papke, Aparecido Augusto de Carvalho, Carlo Zanoni, A. Grudiev · 2019

The design of a compact crab cavity using Nb/Cu technology is presented. The cavity shape is based on a ridged waveguide resonator with wide-open apertures to provide access to the inner surface of the cavity and facilitate coating. It als…

Design and vertical tests of double-quarter wave cavity prototypes for the high-luminosity LHC crab cavity system Open

Silvia Verdú-Andrés, Kurt Artoos, S. Belomestnykh, I. Ben‐Zvi, C. Boulware , et al. · 2018

Crab crossing is essential for high-luminosity colliders. The high-luminosity Large Hadron Collider (HL-LHC) will equip one of its interaction points (IP1) with double-quarter wave (DQW) crab cavities. A DQW cavity is a new generation of d…

Development of a Novel Supporting System for High Luminosity LHC SRF Crab Cavities Open

Thomas C. Jones, Kurt Artoos, Graeme Burt, R. Calaga, Ofelia Capatina , et al. · 2017

Compact SRF Crab Cavities are integral to the HL-LHC upgrade. This paper details the design of support structures within the SPS (Super Proton Synchrotron) Crab Cavity Cryomodule. For ease of alignment each cavity is supported with the mec…

Capacitive sensing of test mass motion with nanometer precision over millimeter-wide sensing gaps for space-borne gravitational reference sensors Open

M. Armano, H. Audley, G. Auger, J. Baird, M. Bassan , et al. · 2017

We report on the performance of the capacitive gap-sensing system of the Gravitational Reference Sensor on board the LISA Pathfinder spacecraft. From in-flight measurements, the system has demonstrated a performance, down to 1 mHz, that is…

Assessment of thermal loads in the CERN SPS crab cavities cryomodule<sup>1</sup> Open

Federico Carra, Jørgen Apeland, R. Calaga, Ofelia Capatina, T Capelli , et al. · 2017

As a part of the HL-LHC upgrade, we designed a cryomodule to host two crab cavities for a first test with protons in the SPS machine. The evaluation of the cryomodule heat loads is essential to dimension the cryogenic infrastructure of the…

The crab cavities cryomodule for SPS test Open

Carlo Zanoni, Alexandre Amorim Carvalho, Kurt Artoos, S. Atieh, K. Brodzinski , et al. · 2017

RF Crab Cavities are an essential part of the HL-LHC upgrade. Two concepts of such systems are being developed: the Double Quarter Wave (DQW) and the RF Dipole (RFD). A cryomodule with two DQW cavities is in advanced fabrication stage for …

Preliminary Mechanical Design Study of the Hollow Electron Lens for HL-LHC Open

Carlo Zanoni, Giorgia Gobbi, Diego Perini, G. Stancari · 2017

A Hollow Electron Lens (HEL) has been proposed in order to improve performance of halo control and collimation in the Large Hadron Collider in view of its High Luminosity upgrade (HL-LHC). The concept is based on a hollow beam of electrons…

Charge-Induced Force Noise on Free-Falling Test Masses: Results from LISA Pathfinder Open

M. Armano, H. Audley, G. Auger, J. Baird, Pierre Binétruy , et al. · 2017

We report on electrostatic measurements made on board the European Space Agency mission LISA Pathfinder. Detailed measurements of the charge-induced electrostatic forces exerted on free-falling test masses (TMs) inside the capacitive gravi…

Preliminary Design Study of the Hollow Electron Lens for LHC Open

Diego Perini, Carlo Zanoni · 2017

A Hollow Electron Lens (HEL) has been proposed in order to improve performance of halo control and collimation in the Large Hadron Collider in view of its High Luminosity upgrade (HL-LHC). The concept is based on a beam of electrons that t…

Multiphysics Analysis of Crab Cavities for High Luminosity LHC Upgrade Open

O. Kononenko, R. Calaga, Zenghai Li, Carlo Zanoni · 2017

Development of the superconducting RF crab cavities is one of the major activities under the high luminosity LHC upgrade project that aims to increase the machine discovery potential. The crab cavities will be used for maximizing and level…

Preliminary Mechanical Design Study of the Hollow Electron Lens for HL-LHC Open

Carlo Zanoni, Giorgia Gobbi, Diego Perini, G. Stancari · 2017

A Hollow Electron Lens has been proposed in order to improve performance of halo control and collimation in the Large Hadron Collider in view of its High Luminosity upgrade (HL-LHC). The concept is based on a beam of electrons that travels…

Assessment of Thermal Loads in the CERN SPS Crab Cavities Cryomodule Open

F. Carra, S. Verdu-Andres, Jørgen Apeland, R. Calaga, O. Capatina , et al. · 2017

As a part of the HL-LHC upgrade, a cryomodule is designed to host two crab cavities for a first test with protons in the SPS machine. The evaluation of the cryomodule heat loads is essential to dimension the cryogenic infrastructure of the…

Progress with Long-Range Beam-Beam Compensation Studies for High Luminosity LHC Open

Adriana Rossi, Diego Perini, Gregory Cattenoz, Federico Carra, D. А. Nikiforov , et al. · 2017

Long-range beam-beam (LRBB) interactions can be a source of emittance growth and beam losses in the LHC during physics and will become even more relevant with the smaller '* and higher bunch intensities foreseen for the High Luminosity LHC…

Constraints on LISA Pathfinder’s self-gravity: design requirements, estimates and testing procedures Open

M. Armano, H. Audley, G. Auger, J. Baird, Pierre Binétruy , et al. · 2016

LISA Pathfinder satellite was launched on 3 December 2015 toward the Sun–Earth first Lagrangian point (L1) where the LISA Technology Package (LTP), which is the main science payload, will be tested. LTP achieves measurements of differentia…

The Design of a Drag-Free CubeSat and the Housing for its Gravitational Reference Sensor Open

Carlo Zanoni, Abdul Alfauwaz, Ahmad Aljadaan, Salman Althubiti, Karthik Balakrishnan , et al. · 2016

A Drag-Free CubeSat mission has been proposed to demonstrate the feasibility of a Gravitational Reference Sensor (GRS) with an optical readout for a 3 units (3U) spacecraft. A purely drag-free object is defined by the absence of all extern…

Drag-free Spacecraft Technologies: criticalities in the initialization\n of geodesic motion Open

Carlo Zanoni · 2016

Present and future space missions rely on systems of increasingly demanding\nperformance for being successful. Drag-free technology is one of the\ntechnologies that is fundamental for LISA-Pathfinder, an ESA mission whose\nlaunch is planne…

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