van der Grinten, M G D, Pendlebury, J M, Shiers, D, Baker, C A, Green, K, Harris, P G, Iaydjiev, P S, Ivanov, S N and Geltenbort, P (1999) Characterization and development of diamond-like carbon coatings for storing ultracold neutrons. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 423 (2-3). pp. 421-427. ISSN 0168-9002

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Abstract

In order to determine the suitability of diamond-like carbon (DLC) as a material for storing ultracold neutrons to use in neutron electric-dipole moment (EDM) experiments, a number of tests on DLC coatings have been performed. Thin DLC layers deposited on quartz and aluminium substrates by chemical vapour deposition have been characterised by neutron transmission, neutron reflectometry, electron microscopy and neutron and mercury storage and depolarisation lifetime measurements. Two types of DLC have been compared; DLC made by chemical vapour deposition from natural methane and DLC made by chemical vapour deposition from deuterated methane. With these samples we determined the density, hydrogen concentration and Fermi potential of the coatings. DLC coatings made from deuterated methane are now succesfully being used in an experiment to measure the EDM of the neutron.

Item Type:	Article
Schools and Departments:	School of Mathematical and Physical Sciences > Physics and Astronomy
Depositing User:	EPrints Services
Date Deposited:	06 Feb 2012 21:11
Last Modified:	11 May 2012 15:17
URI:	http://sro.sussex.ac.uk/id/eprint/30117

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