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Figure 5
(a) Polarization of a 2700 mm (α = 0.53°) and a 1500 mm (α = 0.95°) long V-shaped Fe/Si transmission polarizer (m = 2.5) versus wavelength at the sample position. The set-up implies 19 m collimation with apertures of 50 × 50 mm. (b) and (c) show schematically the reason for the polarization breakdown. (b) Spin-up neutrons with a divergence of two times the gradient angle α of the Fe/Si supermirror wafers. (c) Spin-up neutrons with a divergence of 4α.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 40| Part s1| March 2007| Pages s428-s432
doi:10.1107/S0021889807006310
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