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Title: Deuterated polyethylene coatings for ultra-cold neutron applications

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 η is 1.3 × 10{sup 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.
Authors:
;  [1] ; ; ; ; ; ; ; ;  [2] ; ; ;  [3] ;  [4] ;  [5]
  1. Institut Laue-Langevin, 38042 Grenoble Cedex 9 (France)
  2. Physikdepartment, Technische Universität München, D-85748 Garching (Germany)
  3. Forschungsneutronenquelle Heinz Maier-Leibnitz, Technische Universität München, D-85748 Garching (Germany)
  4. Physik-Department E21 & Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, D-85747 Garching (Germany)
  5. Max-Planck-Institute for Solid State Research, Outstation at MLZ, Lichtenbergstr. 1, 85747 Garching (Germany)
Publication Date:
OSTI Identifier:
22482117
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 107; Journal Issue: 12; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
38 RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY; 36 MATERIALS SCIENCE; CHEMICAL PREPARATION; COATINGS; DEUTERATION; ELECTRIC DIPOLE MOMENTS; EV RANGE; FABRICATION; POLYETHYLENES; ULTRACOLD NEUTRONS