Carlo Zanoni
A5089816316- Particle accelerators and beam dynamics
- Superconducting Materials and Applications
- Particle Accelerators and Free-Electron Lasers
- Pulsars and Gravitational Waves Research
- Radio Astronomy Observations and Technology
- Adhesion, Friction, and Surface Interactions
- Geophysics and Gravity Measurements
- Computational Physics and Python Applications
- Advanced MEMS and NEMS Technologies
- Cosmology and Gravitation Theories
- Particle Detector Development and Performance
- Advanced Measurement and Metrology Techniques
- Astronomical Observations and Instrumentation
- Astronomy and Astrophysical Research
- Spacecraft and Cryogenic Technologies
- Geophysics and Sensor Technology
- Gamma-ray bursts and supernovae
- Electromagnetic Launch and Propulsion Technology
- Planetary Science and Exploration
- Spacecraft Design and Technology
- Gyrotron and Vacuum Electronics Research
- Force Microscopy Techniques and Applications
- Galaxies: Formation, Evolution, Phenomena
- Mechanical and Optical Resonators
- Astrophysics and Cosmic Phenomena
University of Trento
2013-2024
Istituto Nazionale di Fisica Nucleare, Trento Institute for Fundamental Physics And Applications
2015-2024
Istituto Nazionale di Fisica Nucleare
2023-2024
European Southern Observatory
2019-2022
European Organization for Nuclear Research
2015-2021
Lawrence Berkeley National Laboratory
2015
We present an in-depth analysis of the LISA Pathfinder differential acceleration performance over entire course its science operations, spanning approximately 500 days. find: (1) The evolution Brownian noise that dominates amplitude spectral density (ASD), for frequencies f≳1 mHz, is consistent with decaying pressure due to outgassing a single gaseous species. (2) Between f=36 μHz and 1 ASD shows 1/f tail in excess almost constant amplitude, ≃20% fluctuations period few days, no particular...
Measurements of electrostatic forces on free-falling test masses--2 kg metal cubes--are carried out for the first time in an environment constructed space-based gravitational wave detectors (a spacecraft 1.5 million km away from Earth).
Electrostatic force actuation is a key component of the system geodesic reference test masses (TM) for LISA orbiting gravitational wave observatory and in particular performance at low frequencies, below 1 mHz, where sensitivity limited by stray noise. The needs to apply forces order 10−9 N while limiting fluctuations measurement band levels approaching 10−15 N/Hz1/2. We present here design, based on audio-frequency voltage carrier signals, results its in-flight with Pathfinder mission. In...
We report on the performance of capacitive gap-sensing system Gravitational Reference Sensor board LISA Pathfinder spacecraft. From in-flight measurements, has demonstrated a performance, down to 1 mHz, that is ranging between 0.7 and $1.8\text{ }\text{ }\mathrm{aF}\text{ }{\mathrm{Hz}}^{\ensuremath{-}1/2}$. That translates into sensing noise test mass motion within 1.2 $2.4\text{ }\mathrm{nm}\text{ }{\mathrm{Hz}}^{\ensuremath{-}1/2}$ in displacement 83 $170\text{ }\mathrm{nrad}\text{...
LISA Pathfinder (LPF), the second of European Space Agency's Small Missions for Advanced Research in Technology (SMART), is a dedicated technology validation mission future spaceborne gravitational wave detectors, such as proposed eLISA mission. Pathfinder, and its scientific payload - Package will test, flight, critical technologies required low frequency detection: it put two test masses near-perfect free-fall control measure their motion with unprecedented accuracy. This achieved through...
We present an in depth analysis of the transient events, or glitches, detected at a rate about one per day differential acceleration data LISA Pathfinder. show that these glitches fall two rather distinct categories: fast transients interferometric motion readout on side, and true force events other. The former are rare ordinary conditions. second may last from seconds to hours constitute majority glitches. physical statistical properties both categories, including cross-analysis with other...
Abstract Galactic cosmic-ray (GCR) energy spectra observed in the inner heliosphere are modulated by solar activity, polarity and structures of interplanetary origin. A high counting rate particle detector (PD) aboard LISA Pathfinder , meant for subsystems diagnostics, was devoted to measurement GCR energetic integral fluxes above 70 MeV n −1 up 6500 counts s . PD data were gathered with a sampling time 15 s. Characteristics dependence flux recurrent depressions Forbush decrease dated 2016...
LISA Pathfinder satellite was launched on 3 December 2015 toward the Sun–Earth first Lagrangian point (L1) where Technology Package (LTP), which is main science payload, will be tested. LTP achieves measurements of differential acceleration free-falling test masses (TMs) with sensitivity below within 1–30 mHz frequency band in one-dimension. The spacecraft itself responsible for dominant gravitational field acting two TMs. Such a force interaction could contribute significant amount noise...
Modern launch-lock and release mechanisms are mechatronics systems that often responsible for critical tasks in space applications. In the European Space Agency mission LISA-Pathfinder, a piezoelectrical mechanism performs dynamic of an object (in very demanding conditions). A 1.96-kg cubic test mass has to be held during launch then released into free fall with velocity below 5 μm/s. Two identical opposed mechanisms, moved by piezostack actuators, designed nominally symmetrical order...
The challenging goal of LISA-Pathfinder in terms maximum non-gravitational forces applied on the test mass poses tight constraints design Gravitational Reference Sensor. In particular, large gaps (3-4 mm) must exist between and its housing any system there located be either gold coated or made a gold-based material. As consequence, significant adhesion may arise mechanism designed to cage it during spacecraft launch release free-fall. criticality latter phase is enhanced by control force...
Abstract Magnetically-induced forces on the inertial masses on-board LISA Pathfinder are expected to be one of dominant contributions mission noise budget, accounting for up 40%. The origin this disturbance is coupling residual magnetization and susceptibility test with environmental magnetic field. In order fully understand important part model, a set coils magnetometers integrated as diagnostics subsystem. During operations sequence excitations will applied precisely determine environment...
Thermal Diagnostics experiments to be carried out on board LISA Pathfinder (LPF) will yield a detailed characterisation of how temperature fluctuations affect the LTP (LISA Technology Package) instrument performance, crucial information for future space based gravitational wave detectors as proposed eLISA. Amongst them, study gradient around test masses Inertial Sensors provide well regarding contribution Brownian noise, which is expected limit sensitivity at frequencies close 1 mHz during...
Adhesion impulses generated at the separation of metallic surfaces significantly impact functionality and performance launch-lock release space mechanisms. The testing concept adopted here consists a suspended plate set into contact with an end-effector, which is retracted to simulate in-flight release. At retraction, bonds are stretched up failure, transferring impulse plate. proposed technique focuses on plate-free vibration: if least two amplitudes excited vibration modes measured, it...
Crab crossing is essential for high-luminosity colliders. The Large Hadron Collider (HL-LHC) will equip one of its interaction points (IP1) with double-quarter wave (DQW) crab cavities. A DQW cavity a new generation deflecting rf cavities that stands out compactness and broad frequency separation between fundamental first high-order modes. kick provided by mode. Each HL-LHC shall provide nominal voltage 3.4 MV, although up to 5.0 MV may be required. proof-of-principle (POP) was limited...
The HL-LHC project aims at increasing the LHC luminosity by a factor 10 beyond design value. installation of set RF Crab Cavities to increase bunch crossing angle is one key upgrades program. Two concepts, Double Quarter Wave (DQW) and Dipole (RFD) have been proposed are being produced in parallel for test SPS beam before next long shutdown CERN accelerator’s complex. In retained concept, two cavities hosted single cryomodule, providing thermal insulation interfacing with coupling, tuning,...
Many future particle colliders require beam crabbing to recover geometric luminosity loss from the nonzero crossing angle at interaction point (IP). A first demonstration experiment of with hadron beams was successfully carried out high energy protons. This breakthrough result is fundamental achieve physics goals LHC (HL-LHC) and circular collider (FCC). The expected peak gain (related collision rate) 65% for HL-LHC even greater FCC. Novel experiments proton in CERN's Super Proton...
Structural, thermal, and optical performance (STOP) analysis is gradually becoming a crucial tool in the development of systems general astronomical telescopes instruments particular. We describe approach European Southern Observatory to STOP at examples phasing diagnostic station pre-focal Extremely Large Telescope under construction. Further, we discuss fundamentals estimation thermal effects on how carry it out with in-house developed software Sensitizer.
Release mechanisms are crucial devices for the success of space missions. In LISA, first gravitational waves observatory in space, grabbing positioning and release mechanism (GPRM) is responsible setting all test masses (TMs) free-fall condition necessary starting science observations. This considered a key equipment entire mission. The GPRM was initially tested LISA Pathfinder (LPF), mission flown between 2015 2017, an anomaly encountered TM velocity after release, which also resulted some...
RF Crab Cavities are an essential part of the HL-LHC upgrade. Two concepts such systems being developed: Double Quarter Wave (DQW) and Dipole (RFD). A cryomodule with two DQW cavities is in advanced fabrication stage for tests protons SPS. The must be operated at 2 K, without excessive heat loads, a low magnetic environment compliance CERN safety guidelines on pressure vacuum systems. large set components, as thermal shield, layers lines, helium tank tuner required successful safe operation...