ID |
Date |
Author |
Group |
Subject |
80
|
10 Apr 2024, 17:03 |
Kelin Tasca | XRO | M3 calibration |
- M3 TX moved to 0 in steps of 1 mm and beam on FXE Pop-In corrected with M3 RY (+) and M2 RY
- Started calibration with M3 Rz in steps of 0.5 (+) and corrected with M2 RY and RZ to find a position with a minimum of parasitic motion
- Iterations with M3 TY
- CRL 3 and 4 were inserted (using find target)
- The backlash correction was disabled
- Curve for M3 Rz position with Ry correction done. M2 RY/RZ corrections to move beam up and down to have it on the screen
- Curve for M3 Ty position with Ry correction done.
- Curve for M3 Rx position with Ry correction done
M3 vertical motors calibrated to 0
|
Attachment 1: SA1_M1_calibration.ods
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Attachment 2: M3_at_nominal_2024-04-10_21-16-39.png
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Attachment 3: M3_calibrated_2024-04-10_21-20-34.png
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79
|
10 Apr 2024, 16:35 |
Antje Trapp | XRO | start of shift - status |
Starting shift with mirror motor calibration:
- beam is centered on FEL imager
- pblm in XTD9 is inserted
We removed both silicon solid attenuator and pblm |
Attachment 1: Init_2024-04-10_16-34-30.png
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Attachment 2: status_2024-04-10_16-46-01.png
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Attachment 3: FEL_imag_2024-04-10_16-40-29.png
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Attachment 4: pblm_2024-04-10_16-52-34.png
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78
|
10 Apr 2024, 16:35 |
Antje Trapp | XRO | start of shift - status |
Starting shift with mirror motor calibration:
- found solid attenuator 0.5mm silicon inserted
- beam is centered on FEL imager
- pblm in XTD9 is inserted
We removed both silicon solid attenuator and pblm |
Attachment 1: Init_2024-04-10_16-34-30.png
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Attachment 2: status_2024-04-10_16-46-01.png
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Attachment 3: FEL_imag_2024-04-10_16-40-29.png
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Attachment 4: pblm_2024-04-10_16-52-34.png
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77
|
10 Apr 2024, 11:55 |
Harald Sinn | PRC | Status |
Yesterday two motors of the SASE2 seeding mono were damaged. The mono was exchanged in the afternoon and pumped down. Currently, an issue with the vertical cystal motion is being investigated. The vacuum improved much faster than expected after this intervention, so the hope is that the tunnel can be searched soon and electrons could go through SASE2 already this afternoon. Watch for updates in the program for SASE2 in the DESY logbook under 'Schedule'. |
76
|
08 Apr 2024, 06:37 |
Marcin Sikorski | SPB | Shift end |
In-house/commissioning beam time summary night 5
X-ray delivery:
12.7 keV, up to 128 pulses at 0.5MHz, ~1.3 mJ, one very short beam down.
Optical laser delivery:
PP laser for illumination
Achievements/observations:
- AGIPD1.2 tests with different trigger delays, gain modes, signal levels ...
- inhouse proghram completed
Issues:
Some sample delivery issues |
75
|
07 Apr 2024, 07:04 |
Raphael de Wijn | SPB | Shift summary |
In-house/commissioning beam time summary night 4
X-ray delivery:
12.7 keV, up to 128 pulses at 0.5MHz, ~1.3 mJ, one very short beam down.
Optical laser delivery:
PP laser for illumination
Achievements/observations:
AGIPD timing scan, fine and coarse
A few runs with Jungfrau
Issues:
Some sample delivery issues
Some Jungfrau pipeline issues (will be investigated by DOC during the day) |
74
|
06 Apr 2024, 07:06 |
Raphael de Wijn | SPB | Shift summary |
Staff: MS, RB, PS, RdW
In-house/commissioning beam time summary night 3
X-ray delivery:
12.7 keV, up to 288 pulses at 1.1MHz, ~1.3 mJ
Optical laser delivery:
PP laser for illumination
Achievements/observations:
Collected a lot of data with Jungfrau, burst mode 16 memory cells:
- 1, 4 and 18 pulses/memory cell
- one run of each setting 1, 4, 8, 10, 13 and 18 pulses/memory cell one after the other
- 8 pulses with 32% transmission
- 4 pulses with half the repetition rate (0.5MHz)
|
73
|
05 Apr 2024, 07:14 |
Raphael de Wijn | SPB | Shift summary |
In-house/commissioning beam time summary night 2
X-ray delivery:
12.7 keV, up to 288 pulses at 1.1MHz, ~1.2 mJ
Optical laser delivery:
PP laser for illumination
Achievements/observations:
Collected a lot of data: continued 8 pulses per memory cell, around 1h30-2h 1 pulse and 3 runs with 18 pulses.
|
72
|
04 Apr 2024, 06:48 |
Raphael de Wijn | SPB | Shift summary |
In-house/commissioning beam time summary night 1
X-ray delivery:
12.7 keV, up to 208 pulses at 1.1MHz, 1.1-1.5 mJ
Optical laser delivery:
PP laser for illumination
Achievements/observations:
Minimised air scattering background on Jungfrau
Collected serial crystallography data with 8, 10 and 13 pulses per memory cell and good hit rates
Issues:
Sample growing again from the catcher cone |
71
|
31 Mar 2024, 23:20 |
Adam Round | SPB | Shift end |
X-ray delivery
- 12.72 keV, 10Hz, ~1.4 mJ/pulse, some beam drift in the horizontal direction observed (probably mirror related)
Optical laser delivery
- 487 nm ns laser for pump-probe
- 800 nm PP laser for jet illumination, stable delivery
Achievements/Observations
- Collected PP (pump-probe) dataset with 5 us time delay more than 12 hours
- Jet and data collection was stable most of the time
|
70
|
30 Mar 2024, 22:50 |
Chan Kim | SPB | Shift summary |
X-ray delivery
- 12.72 keV, 10Hz, ~1.4 mJ/pulse, continuous beam drift in the horizontal direction observed
Optical laser delivery
- 487 nm ns laser for pump-probe
- 800 nm PP laser for jet illumination, stable delivery
Achievements/Observations
- Collected PP (pump-probe) dataset with 5 us time delay more than 12 hours
- Collected 3 runs (5 minutes run) of dark state in the end of the shift
- Jet was quite stable most of the time
Issues
- Continuous beam pointing drift in the horizontal direction observed
- Vacuum spike at MKB_PSLIT section trip the beam shortly which might be related to the beam pointing drift |
69
|
30 Mar 2024, 22:02 |
Chan Kim | SPB | Issue |
Continuous pointing drift in horizontal direction.
It may trigger a vacuum spike at SPB OH (MKB_PSLIT section) at 21:07 pm.
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Attachment 1: Screenshot_from_2024-03-30_21-59-03.png
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Attachment 2: Screenshot_from_2024-03-30_21-09-11.png
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67
|
30 Mar 2024, 06:59 |
Romain Letrun | SPB | Issue |
DOOCS panels are again incorrectly reporting the FXE shutter as opened when it is in fact closed. This had been fixed after it was last reported in February (elog:24), but reappeared now. |
Attachment 1: Screenshot_from_2024-03-30_06-58-42.png
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68
|
30 Mar 2024, 00:17 |
Björn Senfftleben | | (Resolved) Issues with DAQ |
We had some trouble with the DAQ. It was not able to start runs properly.
We got the following error messages:
initially:
[00:01:27]: Problem of communication with data manager
[00:01:30]: Start new run ...
[00:01:38]: Failed starting data recording
DM: error at registerRun (Request to MDC timeouted)
after trying to start the run again:
[00:05:35]: Start new run ...
[00:05:35]: Failed starting data recording
DM: error at registerRun (Problem of communication with MDC
#Info: MDC-1100: MDC web server error: Error creating run
#Details: {'run_number': ['must be unique per proposal', 'has already been taken'], 'experiment_id': ['has already been taken']})
Cycling the DAQ resolved the issue. |
66
|
29 Mar 2024, 22:38 |
Chan Kim | SPB | Shift summary |
X-ray delivery
- 12.72 keV, 10Hz, ~1.4 mJ/pulse, stable delivery
Optical laser delivery
- 487 nm ns laser for pump-probe
- 800 nm PP laser for jet illumination, stable delivery
Achievements/Observations
- AGIPD BG optimized (DiffPump realigned)
- IRDA focus optimized (EHC_CRL arm10 (1mm pinhole) inserted)
- Completed dark state measurement of the main sample (more than 4 hours of measurement time)
- Collected PP (pump-probe) dataset with 5 us time delay (about 3 hours of measurement time; Jet was quite stable during the 3 hrs measurement)
Issues
- AGIPD module Q3M2 was not healthy. After another power cycle, it recovered.
- X-ray pulse energy was relatively low in the beginning of the shift. It was partially recovered after running the launch optimization by BKR. |
65
|
28 Mar 2024, 14:56 |
Chan Kim | SPB | Issue |
Pulse energy fluctuation observed after full train operation in SA2 starts. |
Attachment 1: Screenshot-from-2024-03-28-14-26-18_1.png
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64
|
28 Mar 2024, 14:54 |
Chan Kim | SPB | Shift summary |
X-ray delivery
- 12.72 keV, 10 Hz, NOT stable delivery, pointing drastically changed in the afternoon, presumably due to the train-on-demand operation at SASE2
Optical laser delivery
- 487 nm ns laser (not used)
- 800 nm PP laser for sample illumination
Achievements/Observations
- Beam is aligned for IRDa
- lysosyme date was collected for JF4M geometry
Issues
- X-ray pointing changed in the afternoon, we have to figure out why and whether we can avoid losing trajectory
- Beam is currently clipped and EHC_SCR, @Romain Letrun , @Adam Round please take a look tomorrow
- Detector background was not optimal, might require more work tomorrow
- Roadrunner RX motor did not move, in Karabo, was giving error messages @Adam Round please take a look, maybe resetting the roadrunner outside of Karabo can help
- AGIPD MFPGA2 issue (keep acquiring) which was solved by power cycle
|
63
|
23 Mar 2024, 23:12 |
Peter Zalden | FXE | Shift summary |
User experiment transient grating, Cris Svetina. (LTP)
- Used 7.11 keV from ACC with very good performance, above 4 mJ.
- Collected pump-probe data on user sample most of the time today
- FXE will operate in 24h mode for the rest of the delivery week
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62
|
22 Mar 2024, 23:13 |
Peter Zalden | FXE | Shift summary |
User experiment transient grating, Cris Svetina. (LTP)
- Used 7.11 keV from ACC with very good performance, above 4 mJ.
- Collected pump-probe data on user sample most of the time today, only minor interruptions due to accelerator outages
- After the outage at 21h, SASE came back with 17 eV lower photon energy, so we had to re-calibrate the undulator spectrum
- FXE will operate in 24h mode for the rest of the delivery week
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61
|
22 Mar 2024, 06:35 |
Raphael de Wijn | SPB | Shift summary |
X-ray delivery
- 9.3 keV, >3 mJ/pulse, beam down around 30min
Optical laser delivery
- 800nm PP laser for jet illumination, stable delivery
Achievements/Observations
- Collected a lot of data (from midnight to 6am) with different sample concentrations and mixing delays with the users
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