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Figure 6
Efficiency as a function of beam position along the upstream end of the polycapillary, measured by scanning a 20 µm-wide beam across the capillary. The average efficiency across the middle 11 mm is shown. |
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Figure 6
Efficiency as a function of beam position along the upstream end of the polycapillary, measured by scanning a 20 µm-wide beam across the capillary. The average efficiency across the middle 11 mm is shown. |