Neutron Transmission through Clathrate Hydrate Samples for New Very-Cold-Neutron Moderators
The interest for Very Cold Neutrons (VCN) is increasing within the last years in multiple fields of research, as they do not only provide an innovative probe for condensed matter physics, but can also contribute in pushing the limits of fundamental physics experiments employing beams of slow neutrons. This goes along with an increasing interest in new sources of VCN. Clathrate hydrates seem to be particularly well suited for a moderation medium, as they possess low-energy modes with sufficiently large inelastic neutron scattering cross sections. This is provided by their composition ¿ a network of water molecules, that forms cages of different sizes, which are able to host guest molecules. Besides its capability of moderation an important parameter for a VCN source is the mean free path of the produced VCN. This quantity is directly accessibly with neutron transmission experiments. Measurements in the cold neutron range, using time-of-flight analysis of the transmitted direct beam of PF1B, should show the Bragg edges of the polycrystalline structure of our samples. Measurements in the VCN range should complement data previously taken.
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The recommended format for citing this dataset in a research publication is in the following format:
CZAMLER Valentin; ALLAN Julie; FILTER Hanno; JENKE Tobias; LAFONT Fabien; NEULINGER Thomas; TOLSON Luke; WAGNER Richard and ZIMMER Oliver. (2023). Neutron Transmission through Clathrate Hydrate Samples for New Very-Cold-Neutron Moderators. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.3-14-431
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