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![[Figure 7]](in5049fig7mag.jpg)
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Figure 7
(a) A picture of the inside of the vSANS detector vessel. Components that have a potentially high albedo are highlighted. These are (A) the beam-stop support mechanism, wiring and motors, (B) the cable carriers and supports, (C) the metal rails plus supports, and (D) the LED lights plus supports. (b) A top-view sketch, showing how the vSANS front carriage blocks a large fraction of the albedo shine from the interior of the detector vessel. The detector panels are labeled L (left), R (right), T (top) and B (bottom). (c) A plot of the scattering from a 0.16 cm thick PMMA sample measured on the vSANS instrument. The first measurement used the middle carriage's left (ML, black) and right (MR, blue) detector panels at L = 6 m, with the front carriage at L = 0.7 m. In this configuration, the front carriage detectors prevent the majority of sample-scattered neutrons from reaching the vessel lining. The second measurement used the front carriage's left (FL, green) and right (FR, red) panels at L = 4 m, with the middle carriage at L = 7 m. In this configuration, the front panels see the full shine from the vessel, causing a 4% increase in the observed scattering. |
![[Figure 7]](in5049fig7.jpg)
 | JOURNAL OF APPLIED CRYSTALLOGRAPHY |
ISSN: 1600-5767
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