UCN production in superfluid helium
- W. Schott
- J.M. Pendlebury
- I. Altarev
- S. Gröger
- E. Gutsmiedl
- F.J. Hartmann
- S. Paul
- G. Petzoldt
- P. Schmidt-Wellenburg
- U. Trinks
Publication date
January 2003
DOI Publisher
Springer Science and Business Media LLCAbstract
Ultra-cold neutrons (UCN) are produced in superfluid helium by single- and multi-phonon excitation. The UCN production rate density $R_{\rm II}$ via multiphonons can be larger than that by one-phonon excitation $R_{\rm I}$ being due to the dependence of the incident neutron spectral flux density $\drm \phi/\drm \lambda$ on the wavelength $\lambda$
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