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Open AccessTime-of-flight spectroscopy of ultracold neutrons at the PSI UCN source
The ultracold neutron (UCN) source at the Paul Scherrer Institute (PSI) provides high intensities of storable neutrons for fundamental physics experiments. The neutron velocity spectrum parallel to the beamlin...
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Article
Open AccessMuonic atom spectroscopy with microgram target material
Muonic atom spectroscopy–the measurement of the x rays emitted during the formation process of a muonic atom–has a long standing history in probing the shape and size of nuclei. In fact, almost all stable elem...
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Article
Open AccessUltracold neutron storage and transport at the PSI UCN source
Efficient neutron transport is a key ingredient to the performance of ultracold neutron (UCN) sources, important to meeting the challenges placed by high precision fundamental physics experiments. At the Paul ...
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Article
Open AccessErratum to: Data blinding for the nEDM experiment at PSI
A Correction to this paper has been published: https://doi.org/10.1140/epja/s10050-021-00456-1
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Article
Open AccessData blinding for the nEDM experiment at PSI
Psychological bias towards, or away from, prior measurements or theory predictions is an intrinsic threat to any data analysis. While various methods can be used to try to avoid such a bias, e.g. actively avoidin...
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Article
Neutron optics of the PSI ultracold-neutron source: characterization and simulation
The ultracold-neutron (UCN) source at the Paul Scherrer Institute serves mainly experiments in fundamental physics. High UCN intensities are the key for progress and success in such experiments. A detailed und...
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Article
Solid deuterium surface degradation at ultracold neutron sources
Solid deuterium (sD \( _2\) ...
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Ultracold neutron detection with 6Li-doped glass scintillators
This paper summarizes the results from measurements aiming to characterize ultracold neutron detection with 6Li-doped glass scintillators. Single GS10 or GS20 scintillators, with a thickness of 100-200μm, fulfill...
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Article
A device for simultaneous spin analysis of ultracold neutrons
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. The device was developed in the...
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An endoscopic detector for ultracold neutrons
A new versatile detector for ultracold neutrons (UCN) has been built and operated which combines multi-pixel photon counters and GS10 lithium-doped scintillators. Such detectors can be very small and can be us...
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Article
Diffuse reflection of ultracold neutrons from low-roughness surfaces
We report a measurement of the reflection of ultracold neutrons from flat, large-area plates of different Fermi potential materials with low surface roughness. The results were used to test two diffuse reflect...