X-ray delivery

• 12.8 keV, 1 pulse, ~0.7 mJ

Achievements/Observations

• Except for some downtime due to beam down, majority of the time was for data collection
• 6 windows of a chip collected, with variations in shots spacing (30 um and 60 um) and rotation

Issues

• Something is still causing beam drift constantly, even though we can correct it with the feedback.

X-ray delivery

• 12.8 keV, 1-20 pulses at 47 kHz, 500-700 uJ.
• Pulse energy constantly decaying since ~3:00.

Achievements/Observations

• Continuous SFX data collection since 00:10.

Issues

• Apparent mechanical issue with one motor. To be investigated before the restart of beam delivery.
• Beam horizontal drift still present, but not as pronounced as earlier this week.

X-ray delivery

8.951 keV, 1.6 mJ

Achievements/Observations

Beam trajectory and focusing established for 8.951 keV
HIREX inserted for energy reference for calibration tomorrow
Temporary beamstop verified position for direct beam.
Mirror tank inserted to beam path

On Shift: TS, FT, CK, AR, PS

X-ray delivery
8.951 keV, 1.6 mJ up to 200 pulses at 0.5 MHz (intesity drops off at end of train)

Achievements/Observations
Beam trajectory and focusing re-established at 8.951 keV
Temporary beamstop verified position for sweeping - confirmed by eric
Beam sweeping in synchronisation with pulse trains observed!
slit window assembly remounted and beam is going through to back of hutch in perparation for optimisation next shft

X-ray delivery
8.951 keV, 1.2 mJ up to 30pulses at 113 kHz

Achievements/Observations
Beam trajectory at 8.951 keV
IRDa slits left/right blades connected
Sweeped pulses could be observed on fluorescent paper in front of the Downstream screen
Mirror synchronisation parameters could be found
Jungfrau halves were closed and the downstream cone installed
Background was minimised using the IRDa slits

X-ray delivery
8.951 keV, 1.6 mJ up to 16 pulses at 113 kHz

Achievements/Observations
More than 1h of beam sweeping with lysozyme crystals
Several runs of vitamin C beam sweeping data

Issues:
Several synchronization methods were tested for the mirrors but without improving it
 

600um thick CVD diamond (XTD2 attenuator) seems damaged

Attachment 1: 600um thick CVD diamond (Arm 4) OUT

Attachment 2: 600um thick CVD diamond (Arm 4) IN

X-ray delivery

• 6 keV, ~2.8 mJ, stable delivery

Optical laser delivery

• ns laser for particle visualization

Achievements/Observations

• NKB focus optimized
• particle injection tested with gold nanoparticles
• ns laser roughly aligned with particle beam
• Julabo chiller (AGIPD) is still on target (-32 degree)

Issues

• XTD2_ATT Arm4 (600um thick CVD) is damaged (most probably last week)

X-ray delivery

• 6 keV, ~2.7 mJ, stable delivery

Optical laser delivery

• ns laser for particle visualization

Achievements/Observations

• NKB focus optimized
• ns laser aligned with particle beam
• particle injector position optimized
• measured 3 samples: roughly 2 hours per each sample
• one sample was measured with and without He gas
• Julabo chiller (AGIPD) is still on target (-32 degree)

Issues

• Beam drift in vertical direction: Rz has to be corrected during the measurement and moved by 0.2 mm in total in whole day (~18 hours)

X-ray delivery

• 6 keV, ~3.0 mJ, stable delivery

Optical laser delivery

• ns laser for particle visualization

Achievements/Observations

• measured 1 sample roughly for 9 hours (hit rate went down in the afternoon)
• Julabo chiller (AGIPD) is still on target (-32 degree)

Issues

• NKB mirror drifted in vertical direction: it was optimized again at around 9pm
• extremely low hit rate even with sucrose (extremely few particles were observed in sidemic, 1 particle within a few seconds): maybe the aerodynamic lens should be cleaned

**X-ray delivery**

- 6 keV, ~2.8 mJ, stable delivery

**Optical laser delivery**
- ns laser for particle visualization

**Achievements/Observations**
- measured user sample for almost whole day (about 100 runs x 5 minutes)
- Julabo chiller (AGIPD) is still on target (-32 degree)

**Issues**
- MKB Ion pump error (issue fixed after resetting the device)
- NKB focus loosed. Focus reoptimized twice during the d2 shift

X-ray beam is continuously drifting in the vertical direction (XTD9_XGM)
It affects our NKB focus and focused beam is also drifting continuously.

**X-ray delivery**

- 6 keV, ~2.8 mJ, continuous beam drift in vertical direction (both XTD2 & XTD9 XGMs)

**Optical laser delivery**
- ns laser for particle visualization

**Achievements/Observations**
- measured sample for almost whole day (about 100 runs x 5 minutes)
- Julabo chiller (AGIPD) is still on target (-32 degree)

**Issues**
- Continuous beam drift in the vertical direction: NKB focus was optimized almost every 2 hours
- Sudden intensity drop in SA1 when SA2 or SA3 changes the number of pulses.

X-ray delivery

    6 keV, ~2.8 mJ, continuous beam drift in both direction

Optical laser delivery

    ns laser for particle visualization

Achievements/Observations

    DAta collection for CDI
    Julabo chiller (AGIPD) is still on target (-32 degree)

Issues

    Continuous beam drift in the both direction: NKB focus was optimized almost every 2 hours

X-ray delivery

12.4 keV, ~1.4 mJ

Achievements/Observations

Beam was focused on a YaG, alignment finished up to JF4M

X-ray delivery

12.5 keV, ~1.6 mJ

Achievements/Observations:
Collected almost 40 runs of the priority sample with 7 pulses per train using the Polypico injection system.

Issues:
Jungfrau controller issue when changing back to single cell adaptive to collect powder data with new geometry (solved together with DOC).
Pipeline issue after requesting single cell correction - still the same bug in the calibration pipeline, the pipeline has to be re-instantiated after the change.

End of in-house 8496

X-ray delivery

15.13 keV 30 pulses @0.5 MHz and 64 pulses (customized pattern), 0.85-1.0 mJ stable delivery

Achievements/Observations

• We used the customized pattern and it worked well, thanks to everyone involved
• One fuse was blew, TS OCD had to come on site
• Interlock was brocken accidently with the shutter open, which tripped the beam in all SASEs

X-ray delivery

19 keV, ~550 uJ, 1 - 128 pulses, stable delivery

Optical laser

N/A

Achievements/Observations

Sample test with both setup
Siemens star resolution measurement 

Issues

No major issue

X-ray delivery

19 keV, ~450 uJ, 1 - 128 pulses, stable delivery

Optical laser

N/A

Achievements/Observations

Lots of data collection

Issues

No major issue today