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(Left) An open beam image showing the distribution of the neutron flux due to the use of the parabolic focussing guide at the BOA beamline. The centre flat-top region exhibits about order an of magnitude increase in the available flux. The image is median filtered from 100 images of 10 ms acquisition time; (right) Resolution test pattern (Gadolinium Siemens star) positioned randomly with respect to the beam profile –acquisition time as short as 10 ms.
