Deuterated polyethylene coatings for ultra-cold neutron applications

作者：Brenner Th^*; Fierlinger P; Geltenbort P; Gutsmiedl E; Hollering A; Lauer T; Petzoldt G; Ruhstorfer D; Schroffenegger J; Seemann K M; Soltwedel O; Stuiber St; Taubenheim B; Windmayer D; Zechlau T

来源：Applied Physics Letters, 2015, 107(12): 121604.

DOI：10.1063/1.4931388

We report on the fabrication and use of deuterated polyethylene 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 x 10(4) per wall collision. The coating technique allows for a wide range of applications in this field of physics. In particular, flexible and quasi-massless UCN guides with slit-less shutters and seamless UCN storage volumes become possible. These properties enable the use in next-generation measurements of the electric dipole moment of the neutron.

• 出版日期2015-9-21