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Figure 3
Simulated relative transmission of the EQ-SANS optics compared with the alternative of using straight guides. For the simulations, neutrons are counted at the sample position (14 m) behind a 20 × 20 mm sample slit. A 40 × 40 mm collimation slit is located at 10 m. For the alternative straight guides, the multichannel bender is replaced with a straight guide of the same cross section. A 0.5 m gap is introduced between the guides as a place holder for a T0 chopper. For both simulations, the divergence at the source is limited to ±1°, which is enough to illuminate the guides fully at the simulated collimation length.

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