A double area detector system for simultaneous small and wide-angle X-ray scattering

Pokric, B.; Allinson, Nigel M.; Ryan, Anthony J.; Fairclough, J. Patrick A.; Dobson, B. R.; Derbyshire, G.E.; Helsby, W.; Long, G. G.; Moon, Kevin

doi:10.1016/s0168-9002(01)01856-3

Cited by 3 publications

(2 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is often achieved by mounting a linear detector (Bras et al, 2003;Jeng et al, 2009) or small area detector (Urban et al, 2003;Rueda et al, 2006) alongside the scattering beam path near the sample position. More elaborated schemes of SAXS/ WAXS data collection involve specially designed WAXS detectors, with an aperture in the detector front surface for the scattered X-rays at small angles to pass through (Pokric et al, 2002;Weigand et al, 2009). At the time when beamline X9 was designed and constructed (ca 2006-2008), these detectors were generally not commercially available, perhaps limited by their costs, complexity and lack of flexibility in their uses in experiments.…”

Section: X9 Waxs Detectormentioning

confidence: 99%

“…1(a). It resembles one-quarter of the WAXS detector described by Pokric et al (2002) in that the detector is positioned off-axis from the direct beam, therefore the bulk of the detector body can be moved out of the path of the scattered X-rays. It is designed to be vacuum-compatible so that it can be integrated into the scattering beam path for SAXS.…”

Section: X9 Waxs Detectormentioning

confidence: 99%

See 1 more Smart Citation

Using an in-vacuum CCD detector for simultaneous small- and wide-angle scattering at beamline X9

Yang

2013

J Synchrotron Radiat

View full text Add to dashboard Cite

The implementation of simultaneous small- and wide-angle X-ray scattering at beamline X9 of the National Synchrotron Light Source is described. By utilizing an in-vacuum CCD detector with a truncated cone-shaped head and positioned at ~20° off-axis from the direct beam, the overlap of the scattering angle coverage between the wide-angle detector and the conventional small-angle detector is maximized. The combined q-range for measurements in transmission geometry is typically 0.006-2.0 Å(-1) at 13.5 keV, with overlapping data within the range ~0.1-0.2 Å(-1). Simultaneous data collection can also be performed in grazing-incident measurements of flat substrate-supported samples, in which case the wide-angle detector can collect the scattering data along the sample normal as well as parallel to the sample surface without blocking the direct beam. Data processing and correction procedures will be discussed and examples presented.

show abstract