Efficiency of a Tunable Pyrolytic Graphite Neutron Filter

Article type: Research Article

Authors: Vorderwisch, P. | Stuhr, U. | Hautecler, S.

Affiliations: BENSC, Hahn-Meitner-Institut, Glienicker Str. 100, D-14109 Berlin, Germany | Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland

Note: [] Corresponding author. Fax: +49-30-8062-2523. E-mail: vorderwisch@hmi.de

Abstract: The performance of a tunable pyrolytic graphite filter with a cold neutron triple-axis-spectrometer is presented. A filter of 25mm thickness gives an efficient attenuation of the second order beam contamination in the nominal neutron wavevector range 1.4 Å−1 < k ≤ 2.6 Å−1.

Keywords: Tunable neutron filter, Higher-order contamination, Pyrolytic graphite

DOI: 10.1080/10238169908200045

Journal: Journal of Neutron Research, vol. 7, no. 2, pp. 119-129, 1999