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Figure 12
Top: spatial distribution of undulator radiation (indicating FEL alignment and K calibration) from each of the 13 undulator modules as seen by the MCP downstream: (a) after the e-BBA, (b) after the subsequent p-BBA, and (c) after application of the K calibration. Bottom: changes in electron trajectory between e-BBA and p-BBA. |

journal menu![[Figure 12]](yi5185fig12.jpg)
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