619 citations · 1.2k across the 35 of their papers we have counts for
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Simulation and optimization of the Active Magnetic Shield of the n2EDM experiment
N. J. Ayres, G. Ban, G. Bison +47
The n2EDM experiment at the Paul Scherrer Institute aims to conduct a high-sensitivity search for the electric dipole moment of the neutron. Magnetic stability and control are achi…
Ultra-cold neutron simulation framework for the free neutron lifetime experiment SPECT
Julian Auler, Utkarsh Bajpai, Martin Engler +10
The precise determination of the free neutron lifetime is of great significance in modern precision physics. This key observable is linked to the mixing of up and down quarks via t…
Generating a highly uniform magnetic field inside the magnetically shielded room of the n2EDM experiment
C. Abel, N. J. Ayres, G. Ban +63
We present a coil system designed to generate a highly uniform magnetic field for the n2EDM experiment at the Paul Scherrer Institute. It consists of a main coil and a set of…
Achieving ultra-low and -uniform residual magnetic fields in a very large magnetically shielded room for fundamental physics experiments
N. J. Ayres, G. Ban, G. Bison +47
High-precision searches for an electric dipole moment of the neutron (nEDM) require stable and uniform magnetic field environments. We present the recent achievements of degaussing…
A neutron trigger detector for pulsed reactor neutron sources
Julian Auler, Dieter Ries, Bernd Ulmann +10
A variety of experiments investigating properties of neutrons can be performed at pulsed reactor neutron sources like the research reactor TRIGA Mainz. A typical problem faced by t…
A large 'Active Magnetic Shield' for a high-precision experiment
C. Abel, N. J. Ayres, G. Ban +48
We present a novel Active Magnetic Shield (AMS), designed and implemented for the n2EDM experiment at the Paul Scherrer Institute. The experiment will perform a high-sensitivity se…
Particle Physics at the European Spallation Source
H. Abele, A. Alekou, A. Algora +176
Presently under construction in Lund, Sweden, the European Spallation Source (ESS) will be the world's brightest neutron source. As such, it has the potential for a particle physic…
Mapping of the magnetic field to correct systematic effects in a neutron electric dipole moment experiment
C. Abel, N. J. Ayres, G. Ban +50
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 mome…
The design of the n2EDM experiment
N. J. Ayres, G. Ban, L. Bienstman +58
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 carr…
Demonstration of sensitivity increase in mercury free-spin-precession magnetometers due to laser-based readout for neutron electric dipole moment searches
G. Ban, G. Bison, K. Bodek +31
We report on a laser based Hg co-magnetometer deployed in an experiment searching for a permanent electric dipole moment of the neutron. We demonstrate a more than five tim…
A prestorage method to measure neutron transmission of ultracold neutron guides
B. Blau, M. Daum, M. Fertl +8
There are worldwide efforts to search for physics beyond the Standard Model of particle physics. Precision experiments using ultracold neutrons (UCN) require very high intensities…
Gravitational Depolarization of Ultracold Neutrons: Comparison with Data
S. Afach, N. J. Ayres, C. A. Baker +47
We compare the expected effects of so-called gravitationally enhanced depolarization of ultracold neutrons to measurements carried out in a spin-precession chamber exposed to a var…
Observation of gravitationally induced vertical striation of polarized ultracold neutrons by spin-echo spectroscopy
S. Afach, N. J. Ayres, G. Ban +45
We describe a spin-echo method for ultracold neutrons (UCNs) confined in a precession chamber and exposed to a magnetic field. We have demonstrated that the ana…
A device for simultaneous spin analysis of ultracold neutrons
S. Afach, G. Ban, G. Bison +37
We report on the design and first tests of a device allowing for measurement of ultracold neutrons polarisation by means of the simultaneous analysis of the two spin components. Th…
Dynamic stabilization of the magnetic field surrounding the neutron electric dipole moment spectrometer at the Paul Scherrer Institute
S. Afach, G. Bison, K. Bodek +34
The Surrounding Field Compensation (SFC) system described in this work is installed around the four-layer Mu-metal magnetic shield of the neutron electric dipole moment spectromete…
New source for ultracold neutrons at the Institut Laue-Langevin
F. M. Piegsa, M. Fertl, S. N. Ivanov +5
A new intense superthermal source for ultracold neutrons (UCN) has been installed at a dedicated beam line at the Institut Laue-Langevin. Incident neutrons with a wavelength of 0.8…
Copper coated carbon fiber reinforced plastics for high and ultra high vacuum applications
F. Burri, M. Fertl, P. Feusi +9
We have used copper-coated carbon fiber reinforced plastic (CuCFRP) for the construction of high and ultra-high vacuum recipients. The vacuum performance is found to be comparable…
Experimental study of 199Hg spin anti-relaxation coatings
Z. Chowdhuri, M. Fertl, M. Horras +8
We report on a comparison of spin relaxation rates in a Hg magnetometer using different wall coatings. A compact mercury magnetometer was built for this purpose. Glass cell…