## 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 5

Correspondingly, 7 must have strictly

Gaussian or Lorentzian, but not a square wave. Whichever form for 7 is chosen, it

should contain at least one numerical parameter to fix its scale. Such parameters

...

Correspondingly, 7 must have strictly

**positive**Fourier transform, which allows aGaussian or Lorentzian, but not a square wave. Whichever form for 7 is chosen, it

should contain at least one numerical parameter to fix its scale. Such parameters

...

Page 108

It should be noted that, due to the occurence of the logarithm in the expression of

the entropy, only

...

It should be noted that, due to the occurence of the logarithm in the expression of

the entropy, only

**positive**distributions can be retrieved. Looking for a non-**positive**distribution by means of the difference of two**positive**distributions, which...

Page 115

Two distinct entropic reconstructions involving either a

negative map shows some negative density close to high symmetry points in ...

Two distinct entropic reconstructions involving either a

**positive**/negative or a**positive**definite magnetisation density are shown in (C,D) and (E,F). The**positive**/negative map shows some negative density close to high symmetry points in ...

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### Common terms and phrases

Acta Cryst 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 elastic scattering energy error bars example experiment experimental Figure Fourier transform Gaussian GENIE GENIE-V3 histogram inelastic instrument intensity interpolation inverse ISIS least squares likelihood function magnetic structure magnetisation density Markov chain 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 probability procedure quasielastic 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 UNIRAS unit cell vanadium vector wavelength workspace