B. Clément
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Heads up in Surgery: The Ergonomics Revolution for Vitreo-retina Surgeons with Review of Literature Open
Work-related musculoskeletal disorders (MSDs) are ubiquitous among vitreo-retina surgeons due to prolonged static posture, microscope use, and fine motor demands. With the evolution of heads-up display systems and digital visualization, er…
PID Tuning using Cross-Entropy Deep Learning: a Lyapunov Stability Analysis Open
Underwater Unmanned Vehicles (UUVs) have to constantly compensate for the external disturbing forces acting on their body. Adaptive Control theory is commonly used there to grant the control law some flexibility in its response to process …
COLSim, a simulator for Hybrid Navigation Acceptability and Safety Open
© 2024 The Author(s). This is an open access article under the Creative Commons Attribution Non-Commercial No-Derivatives CC BY-NC-ND licence, https://creativecommons.org/licenses/by-nc-nd/4.0/
Learning-based Integrated Cooperative Motion Planning and Control of Multi-AUVs Open
© 2024 The Author(s). This is an open access article under the Creative Commons Attribution Non-Commercial No-Derivatives CC BY-NC-ND licence, https://creativecommons.org/licenses/by-nc-nd/4.0/
View article: Search for Neutron-to-Hidden-Neutron Oscillations in an Ultracold Neutron Beam
Search for Neutron-to-Hidden-Neutron Oscillations in an Ultracold Neutron Beam Open
Models that postulate the existence of hidden sectors address contemporary questions, such as the source of baryogenesis and the nature of dark matter. Neutron-to-hidden-neutron oscillations are among the possible mixing processes and have…
View article: Search for an interaction mediated by axion-like particles with ultracold neutrons at the PSI
Search for an interaction mediated by axion-like particles with ultracold neutrons at the PSI Open
We report on a search for a new, short-range, spin-dependent interaction using a modified version of the experimental apparatus used to measure the permanent neutron electric dipole moment at the Paul Scherrer Institute. This interaction, …
View article: Determination of diffusion coefficients of mercury atoms in various gases from longitudinal spin relaxation in magnetic gradients
Determination of diffusion coefficients of mercury atoms in various gases from longitudinal spin relaxation in magnetic gradients Open
We present a method to measure the binary diffusion coefficient of mercury atoms in a gas at room temperature and low pressure. It is based on the measurement of the longitudinal spin relaxation of optically pumped mercury-199 atoms in a m…
View article: Publisher’s Note: “The very large n2EDM magnetically shielded room with an exceptional performance for fundamental physics measurements” [Rev. Sci. Instrum. 93, 095105 (2022)]
Publisher’s Note: “The very large n2EDM magnetically shielded room with an exceptional performance for fundamental physics measurements” [Rev. Sci. Instrum. 93, 095105 (2022)] Open
status: Published
View article: Mapping of the magnetic field to correct systematic effects in a neutron electric dipole moment experiment
Mapping of the magnetic field to correct systematic effects in a neutron electric dipole moment experiment Open
Experiments dedicated to the measurement of the electric dipole moment of the\nneutron require outstanding control of the magnetic field uniformity. The\nneutron electric dipole moment (nEDM) experiment at the Paul Scherrer Institute\nuses…
View article: The very large n2EDM magnetically shielded room with an exceptional performance for fundamental physics measurements
The very large n2EDM magnetically shielded room with an exceptional performance for fundamental physics measurements Open
We present the magnetically shielded room (MSR) for the n2EDM experiment at the Paul Scherrer Institute, which features an interior cubic volume with each side of length 2.92 m, thus providing an accessible space of 25 m3. The MSR has 87 o…
$n-n'$ Oscillations: Sensitivity of a first UCN beam experiment Open
Oscillations of the neutron into a hidden sector particle are processes predicted in various Standard Model extensions. This extra channel for neutron disappearance has not been tested experimentally in large portions of the oscillation pa…
View article: Manipulation of gravitational quantum states of a bouncing neutron with the GRANIT spectrometer
Manipulation of gravitational quantum states of a bouncing neutron with the GRANIT spectrometer Open
The bouncing neutron is one of the rare system where gravity can be studied in a quantum framework. To this end it is crucial to be able to select some specific gravitational quantum state (GQS). The GRANIT apparatus is the first physics e…
View article: The design of the n2EDM experiment: nEDM Collaboration
The design of the n2EDM experiment: nEDM Collaboration Open
We present the design of a next-generation experiment, n2EDM, currently under construction at the ultracold neutron source at the Paul Scherrer Institute (PSI) with the aim of carrying out a high-precision search for an electric dipole mom…
View article: Johnson-Nyquist noise effects in neutron electric-dipole-moment experiments
Johnson-Nyquist noise effects in neutron electric-dipole-moment experiments Open
Magnetic Johnson-Nyquist noise (JNN) originating from metal electrodes, used\nto create a static electric field in neutron electric-dipole-moment (nEDM)\nexperiments, may limit the sensitivity of measurements. We present here the\nfirst de…
View article: Mapping of the magnetic field to correct systematic effects in a neutron electric dipole moment experiment
Mapping of the magnetic field to correct systematic effects in a neutron electric dipole moment experiment Open
Experiments dedicated to the measurement of the electric dipole moment of the neutron require outstanding control of the magnetic field uniformity. The neutron electric dipole moment (nEDM) experiment at the Paul Scherrer Institute uses a …
Learning-based vs Model-free Adaptive Control of a MAV under Wind Gust Open
Navigation problems under unknown varying conditions are among the most important and well-studied problems in the control field. Classic model-based adaptive control methods can be applied only when a convenient model of the plant or envi…
View article: Measurement of the Permanent Electric Dipole Moment of the Neutron
Measurement of the Permanent Electric Dipole Moment of the Neutron Open
We present the result of an experiment to measure the electric dipole moment (EDM) of the neutron at the Paul Scherrer Institute using Ramsey's method of separated oscillating magnetic fields with ultracold neutrons. Our measurement stands…
A Low-Cost Test Bench for Underwater Thruster Identification Open
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View article: Design and test of a compact and high-resolution time-of-flight measurement device for cold neutron beams
Design and test of a compact and high-resolution time-of-flight measurement device for cold neutron beams Open
A time-of-flight device was developed to characterize wavelength distribution\nand uniformity of a cold neutron beam. This device is very compact -- the\ndistance of flight is $60$ cm -- but achieves very high resolution -- the\nintrinsic …
View article: The n2EDM experiment at the Paul Scherrer Institute
The n2EDM experiment at the Paul Scherrer Institute Open
We present the new spectrometer for the neutron electric dipole moment (nEDM) search at the Paul Scherrer Institute (PSI), called n2EDM. The setup is at room temperature in vacuum using ultracold neutrons. n2EDM features a large UCN double…
View article: Monte Carlo Simulations for the Optimization and Data Analysis of Experiments with Ultracold Neutrons
Monte Carlo Simulations for the Optimization and Data Analysis of Experiments with Ultracold Neutrons Open
Ultracold neutrons (UCN) with kinetic energies up to 300 neV can be stored in\nmaterial or magnetic confinements for hundreds of seconds. This makes them a\nvery useful tool for probing fundamental symmetries of nature, by searching for\nc…
View article: A global optimization approach for non-linear sliding mode control analysis and design
A global optimization approach for non-linear sliding mode control analysis and design Open
The design of sliding mode (SM) comprises the selection of a sliding manifold on the state space and a switching logic. The sliding manifold design is associated with the desired dynamics and closed loop specifications, whereas the switchi…