Second-Order Contamination in a Neutron Crystal Spectrometer
- 1 January 1959
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 30 (1) , 17-21
- https://doi.org/10.1063/1.1716347
Abstract
The second‐order contamination in the BNL neutron crystal spectrometer is measured for the NaCl(220), NaCl(240), Be(101̄1), and Be(123̄1) reflections over the energy range 0.08 to 5 ev. Reflectivity calculations by Holm for neutrons incident on thin crystals of Be and NaCl are verified experimentally. A method is suggested for rapidly calculating the second‐order fraction of the beam using a simple count rate spectrum and the calculated crystal reflectivities.Keywords
This publication has 4 references indexed in Scilit:
- High Resolution Crystal Spectrometer for NeutronsReview of Scientific Instruments, 1956
- Radiation Width Variations in the Slow-Neutron Resonances of Europium and IndiumPhysical Review B, 1955
- Neutron Measurements with the Brookhaven Crystal SpectrometerReview of Scientific Instruments, 1953
- Measurement of Neutron Cross Sections with a Crystal SpectrometerPhysical Review B, 1947