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Figure 6
(a) Vertical position scans (step size 2 µm) collected in hutch 1B for horizontal-geometry MRT collimators (positioned at 21.9 m). 3.033 GeV, 200 mA (top-up mode); SCMPW field 3.00 (0.05) T; F4 in vacuo filter set; fixed filters consisted of 0.6 mm diamond filter (in vacuo), 74 mm He path, 0.35 mm Be window (now at 21.1 m instead of 20.4 m, see Table 1[link]), 38 µm Al foil and 1.6 m air path; P = 100800 (300) Pa and T = 24.4 (0.1)°C. The horizontal micro-slit [measured to be 40 (5) µm opening] was at 22.3 m and the ADC IC at 22.8 m (operated at 2 kV). (b). Horizontal position scan (step size 5 µm) collected in hutch 2B for the vertical-geometry MRT collimator (positioned at 33.5 m). 3.032 GeV, 200 mA (top-up mode); SCMPW field 3.00 (0.05) T; F4 in vacuo filter set; fixed filters consisted of 0.6 mm diamond filter (in vacuo), 6.7 m He path, 1.05 mm Be, 114 µm Al, 125 µm Kapton and 6.1 m air path. The 40 µm vertical micro-slit was at 34.0 m and the ADC IC at 34.3 m. See text for further details.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 24| Part 1| January 2017| Pages 110-141
https://doi.org/10.1107/S1600577516015563
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