Beam delivery SASE 8,25 keV, 1300 µJ. Intensity stable,
but beam jittery in horizontal.
PRC (Dommach) did a ZZ around 13:00 and switched off coolling of M1 in XD1, but no effect on beam jitter.
We decided (around 18:00) that we will use intermediate focus (CRL1 arms 4,6). This is not providing optimal
properties in terms of divergence and chromaticity for our imaging experiment, but the jitter
prevented us from taking any meaningful data. The result is that the jitter is significantly reduced.
We are taking data since 20:00. Quality is moderate but we can live with it. |