New source for ultracold neutrons at the Institut Laue-Langevin

F. M. Piegsa; M. Fertl; S. N. Ivanov; M. Kreuz; K. K. H. Leung; P. Schmidt-Wellenburg; T. Soldner; O. Zimmer

doi:10.1103/PhysRevC.90.015501

New source for ultracold neutrons at the Institut Laue-Langevin

Instrumentation and Detectors 2014-08-22 v1 Nuclear Experiment

Authors: F. M. Piegsa , M. Fertl , S. N. Ivanov , M. Kreuz , K. K. H. Leung , P. Schmidt-Wellenburg , T. Soldner , O. Zimmer

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Abstract

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 0.89 nm are converted to UCN in a five liter volume filled with superfluid $^4$ He at a temperature of about 0.7 K. The UCN can be extracted to room temperature experiments. We present the cryogenic setup of the source, a characterization of the cold neutron beam, and UCN production measurements, where a UCN density in the production volume of at least 55 per cm $^3$ was determined.

Keywords

ultracold neutrons superthermal source superfluid helium cryogenic setup neutron beam characterization UCN density

Cite

@article{arxiv.1404.3527,
  title  = {New source for ultracold neutrons at the Institut Laue-Langevin},
  author = {F. M. Piegsa and M. Fertl and S. N. Ivanov and M. Kreuz and K. K. H. Leung and P. Schmidt-Wellenburg and T. Soldner and O. Zimmer},
  journal= {arXiv preprint arXiv:1404.3527},
  year   = {2014}
}

New source for ultracold neutrons at the Institut Laue-Langevin

Abstract

Keywords

Cite

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