Today, for the first time, we operated our Kookaburra Ultra-Small-Angle Neutron Scattering instrument at its second wavelength: 2.37 Å rather than 4.74 Å.
This involves the use of the graphite (004) reflection from the premonochromator, rather than graphite (002), and a second set of channel-cut silicon crystals: Si(311) rather than Si(111).
This gives a much narrower rocking curve, allowing us to reach smaller Q values down to 1.43·10-5 Å-1, albeit at a lower intensity, which is more suitable for strongly scattering samples with excessive multiple scattering.
For more details, see Kookaburra's specification page.