Deuterated polyethylene coatings for ultra-cold neutron applications

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.

4 pages, 3 figures

References in corpus (3)

• An Improved Experimental Limit on the Electric Dipole Moment of the Neutron
• A magnetically shielded room with ultra low residual field and gradient
• New source for ultracold neutrons at the Institut Laue-Langevin

Cited by in corpus (4)

• Electric Dipole Moments of the Atoms, Molecules, Nuclei and Particles
• The PanEDM Neutron Electric Dipole Moment Experiment at the ILL
• Evaluation of commercial nickel-phosphorus coating for ultracold neutron guides using a pinhole bottling method
• A magic magnetic field to measure the neutron electric dipole moment