Deuterated polyethylene coatings for ultra-cold neutron applications

Th. Brenner; P. Fierlinger; P. Geltenbort; E. Gutsmiedl; A. Hollering; T. Lauer; G. Petzoldt; D. Ruhstorfer; K. M. Seeman; O. Soltwedel; St. Stuiber; B. Taubenheim; D. Windmayer; T. Zechlau

doi:10.1063/1.4931388

arXiv · 1502.06252

Deuterated polyethylene coatings for ultra-cold neutron applications

Th. Brenner·P. Fierlinger·P. Geltenbort·E. Gutsmiedl·A. Hollering·T. Lauer·G. Petzoldt·D. Ruhstorfer·K. M. Seeman·O. Soltwedel·St. Stuiber·B. Taubenheim·D. Windmayer·T. Zechlau

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Abstract

We report on the fabrication and use of deuterated polyethylene (dPE) as a coating material for ultra-cold neutron (UCN) storage and transport. The Fermi potential has been determined to be 214~neV and the wall loss coefficient $\eta$ is 1.3$\cdot$10$^4$ per wall collision. The coating technique allows for a wide range of applications and new possibilities in this field of physics. In particular, flexible and quasi-massless UCN guides with slit-less shutters and slit-less UCN storage volumes become possible. These properties enable the use in next-generation measurements of the electric dipole moment of the neutron.

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Th. Brenner, P. Fierlinger, P. Geltenbort, E. Gutsmiedl, A. Hollering, T. Lauer, G. Petzoldt, D. Ruhstorfer, K. M. Seeman, O. Soltwedel, St. Stuiber, B. Taubenheim, D. Windmayer, T. Zechlau. 2015-02-22. Deuterated polyethylene coatings for ultra-cold neutron applications. https://doi.org/10.1063/1.4931388

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