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Porous and/or bicontinuous structures often display a pronounced correlation peak in their small-angle scattering that indicates a preferred domain spacing $d$. A first attempt to describe the full $q$-dependence of small-angle scattering profiles has been formulated in a previous publication [Frielinghaus (2026) J. [...]

In a recent paper [Frielinghaus & Gommes (2025), J. Appl. [...]

The planned upgrade of the neutron guide system at the Budapest Research Reactor (BRR) provides an opportunity to enhance the performance of its cold neutron source. In this work, two replacement concepts for the existing liquid hydrogen disk moderator are investigated: (i) a box-shaped para-hydrogen (pH2) moderator and (ii) assemblies of low-dimensional (flat) pH2 moderators. [...]