## Neutron Scattering Data Analysis 1990: Invited and Contributed Papers from the Conference on Neutron Scattering Data Analysis Held at The Rutherford Appleton Laboratory, Chilton, 14-16 March 1990 |

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Page 267

Conference, Rutherford Appleton, 1990 Analysis of

scattering from crystal analyser instruments A Smith, C J Carlile ISIS pulsed

neutron facility, Rutherford Appleton Lab, Chilton, Didcot, Oxon 0X11 OQX M

Prager ...

Conference, Rutherford Appleton, 1990 Analysis of

**quasielastic**and inelasticscattering from crystal analyser instruments A Smith, C J Carlile ISIS pulsed

neutron facility, Rutherford Appleton Lab, Chilton, Didcot, Oxon 0X11 OQX M

Prager ...

Page 271

A

a function of energy transfer. The elastic and

indicated. The

...

A

**quasielastic**spectrum from a polysaccharide gel taken at an intermediate Q asa function of energy transfer. The elastic and

**quasielastic**components areindicated. The

**quasielastic**line will, in general, comprise two components, purely...

Page 272

instrument . KQ,w) - S(Q,o») * R(w) S(Q,<*>) can be expressed, quite generally,

by S(Q,w) - AQ(Q)S(co) + SnAn(Q)Ln(w) The first term, containing the delta

function, is the purely elastic component and tha succeeding terms are the

instrument . KQ,w) - S(Q,o») * R(w) S(Q,<*>) can be expressed, quite generally,

by S(Q,w) - AQ(Q)S(co) + SnAn(Q)Ln(w) The first term, containing the delta

function, is the purely elastic component and tha succeeding terms are the

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algorithm applications approach atoms Bayesian beam Bragg peaks calculated configuration constraints coordinates corresponding cost function cross-section crystallographic Data Anal data analysis data set defined detector bank determined diffraction data diffractometer distribution function elastic scattering energy error bars example experiment experimental Figure Fourier transform Gaussian GENIE GENIE-V3 histogram inelastic instrument intensity inverse ISIS least squares likelihood function magnetic structure magnetisation density matrix MaxEnt reconstruction Maximum Entropy McGreevy measured method molecular Monte Carlo neutron diffraction neutron scattering normalisation normalization obtained optimisation optimization problems parameters Patterson map performed Phys plot positive powder diffraction presented at Neutron prior procedure quasielastic radial distribution functions refinement reflectivity data resolution function ROTAX Rutherford Appleton Laboratory sample scan scattering law shown simulated annealing single crystal solution spectra spectrometer spectrum statistical structure factor symmetry technique temperature time-of-flight truncation UNIRAS unit cell vanadium vector wavelength workspace