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 physics …

Abstract The European Spallation Source (ESS), presently under construction in Lund,
Sweden, is a multidisciplinary international laboratory that, once completed at full …

Abstract The European Spallation Source (ESS), currently under construction, is based on a
high-brightness, bi-spectral, low-dimensional moderator placed above a spallation target …

In the course of the Horizon 2020 project HighNESS, a second moderator concept has been
developed for the European Spallation Source, which complements the currently built …

We present a scattering kernel to describe the interactions of low-energy neutrons in
superfluid 4 He at temperatures below∼ 1. 3 K. The kernel was developed on the basis of …

This paper discusses design principles and possible performances of an “in-beam” ultracold
neutron (UCN) source for the European Spallation Source (ESS). The key components of …

This article reviews the development of various sources for ultracold neutrons (UCNs) at the
Petersburg Nuclear Physics Institute (PNPI). For 45 years, PNPI has proposed and …

<? show [AQ ID= GQ2 POS=-24pt]?><? show [AQ ID= GQ5 POS= 12pt]?> In recent years
there has been a renewed interest in the development of compact neutron sources, as an …

Reflectometry techniques are especially suited for time-of-flight measurements. The use of
longer wavelengths does not modify the physics probed during a reflectivity measurement …

The Young-Koppel model (YK) describes comprehensively the interaction of slow neutrons
with diatomic gases such as H $ _2 $ and D $ _2 $. This paper reports on the first …