## 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 |

### From inside the book

Results 1-3 of 13

Page 51

Data Data 1 \O 50 ;oo

Figure 4: (a) Noisy data resulting from the convolution of the object in Fig. 3(a)

with a narrow Gaussian, (b) Corresponding data for a wide Gaussian, (c) MaxEnt

...

Data Data 1 \O 50 ;oo

**MaxEnt Reconstruction MaxEnt Reconstruction**too 50 100Figure 4: (a) Noisy data resulting from the convolution of the object in Fig. 3(a)

with a narrow Gaussian, (b) Corresponding data for a wide Gaussian, (c) MaxEnt

...

Page 228

3(b) the resultant

the data and indicates that the MaxEnt solution is perfectly acceptable as far as

the data are concerned. Fig. 3(d) was the true object, or test profile. We notice ...

3(b) the resultant

**MaxEnt reconstruction**of the density profile. Fig. 3(c) is the fit tothe data and indicates that the MaxEnt solution is perfectly acceptable as far as

the data are concerned. Fig. 3(d) was the true object, or test profile. We notice ...

Page 230

If we incorporate the knowledge of the substrate and the 400 A thickness of the

surface layers into the analysis, we obtain the

Fig. 7(b). This still leaves something to be desired, but is sufficiently close to the

truth ...

If we incorporate the knowledge of the substrate and the 400 A thickness of the

surface layers into the analysis, we obtain the

**MaxEnt reconstruction**shown inFig. 7(b). This still leaves something to be desired, but is sufficiently close to the

truth ...

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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