ISSN:
1600-5724
Source:
Crystallography Journals Online : IUCR Backfile Archive 1948-2001
Topics:
Chemistry and Pharmacology
,
Geosciences
,
Physics
Notes:
Limitations imposed by the geometry of Soller collimator systems on luminosity and resolution of neutron diffraction equipment are studied on the grounds of angular and spatial distribution of neutrons. Transmission functions for collimator systems of arbitrary complexity are derived. The influence of the mutual distances among the various components of the experimental set-up on the shape of transmission functions is given in evidence. Careful intensity measurements performed with well diversified arrangements of Soller collimators are in fair agreement with our theoretical results. The way to improve the performances of neutron diffraction equipment by a proper choice of all the geometrical parameters is shown.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1107/S0567739471000780