Shift Summary Feb 25th, posted by Felix Brausse on 26 Feb 2023, 01:37 
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Aligned both branches of the split-and-delay line.
Brought the beam into the experimental hutch to image it on the x-ray eye; the
sample hexapod is not moving (again?); the values keep changing, but the device clearly does not move
PLEASE INVESTIGATE TOMORROW
Looked at the beam on the Zyla (Zyla is still in)
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Shift Summary Feb 26th, posted by Felix Brausse on 27 Feb 2023, 02:10
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Moved out MONO, aligned SDL without MONO
Looked at both beams on DES
Struggled to get the same beam size with SDL inserted compared to direct beam (~8 um); fixed by adjusting slits |
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Shift summary, posted by Johannes Moeller on 17 Mar 2023, 01:48
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The intensity of the Seeding decreesed from 850 uJ to 550 uJ during the time between 20:00 and 02:00.
The Spectral purity also got worst, the beam in HIREX looks to have more SASE shoulders.
Between 18 and 20 we show a prossible transiant signal, PPL, of the lower branch. But a problem with the monochromator in the MID opt Hutch trigger |
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Issue, posted by Angel Rodriguez Fernandez on 28 Mar 2023, 15:26
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The door from MID side entrance was smashed and we lost the radiation permit.
The acciedent happened between 11 (when the door was lest use by MID members) and 14:19 (when the picture was taken).
It is possible that we will have the permit in the next hours to countinue. |
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Shift summary March 28th, posted by Jörg Hallmann on 29 Mar 2023, 01:31
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Seeding at 9 keV with 800 - 1000uJ intensity
1. alignment of the lower branch of the SDL
2. focussing with CRL2 and check of the beam size using wire scans (slightly more than 10 um) |
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shift summary March 29th, posted by Jörg Hallmann on 30 Mar 2023, 02:37
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achievments: alignment of the SDL (both branches)
measuring of samples & calibrants
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shift summary March 30th, posted by Jörg Hallmann on 31 Mar 2023, 01:51
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- seeding at ~800 uJ
- repaired the laser interlock of A.08
- EPIX back in operation |
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shift summary EulerMDL calibration, posted by Antje Trapp on 16 Apr 2023, 23:06 11x
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First four pictures: beam line status at beginning of shift - Beam aligned to MID
Idea is to check M2 parasitic motions again on M3 popin. therefore bringing M2 close to 0 with all vertical motors and Tx as much as possible
without using beam on the popin. |
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Shift summary, posted by Ulrike Boesenberg on 22 Apr 2023, 21:57
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Quick aligment of the instrument with quiet good HXRSS performance after cryofailure
Checking of t0 to the optical PP laser
Test of energy scanning macro (Undulator + HXRSS) |
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Shift summary, posted by Jan-Etienne Pudell on 04 May 2023, 01:22
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Shift summary:
- get the beam with 23keV and 120µJ
- falignment of mirrors m1 and m2 on the pt stripe at 23keV |
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Shift summary, posted by Jan-Etienne Pudell on 05 May 2023, 02:16
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X-ray delivery:
- stable at 120µJ, mostly 63 pulses
- 1:30h downtime |
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Shift summary, posted by Jan-Etienne Pudell on 06 May 2023, 02:19
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- We get stable x-ray delivery with 130µJ.
- We could move the detector succesfully in and out of the LFoV configuration! |
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Shift summary, posted by Jan-Etienne Pudell on 07 May 2023, 02:23
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We had stable x-ray delivery with 120µJ and up to 300 pulses.
Successful user data acquisition of water and water+THF samples at various supercooled states |
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Shift summary, posted by Jan-Etienne Pudell on 08 May 2023, 02:38
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Stable beam delivery with 23keV and 140µJ at 2.2, 1.1 and 0.55MHz
User data acquisition during the day interrupted by storage and detector DAQ problems: |
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Shift summary, posted by Jörg Hallmann on 25 May 2023, 01:59
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optimization of seeding ongoing
tasks achieved during alignment:
- polarizer aligned |
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Issue, posted by Johannes Moeller on 08 Jun 2023, 11:02
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Addition to previous issue:
Last incident (of overall 4), we had 0 bunches, moved in XTD1 ATT 0.6 and 1.2 mm CVD diamond in and 2.4mm CVD out. However, vacuum started to
become bad already two days ago. |
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Shift summary, posted by Ulrike Boesenberg on 09 Jun 2023, 02:22
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*Vacuum issues: There seems to be a leak in the arm nr. 6 (2.4mm CVD Diamond). This has escalated to trip several times the vacuum sector interlock.
VAC will do an intervention to XTD1 with broken interlock tomorrow morning starting 9am to remove arm 6 permanently and putting a blind flange instead.
*We can measure for today with the 2.4mm CVD Diamond inserted into the beam. |
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Shift summary, posted by Ulrike Boesenberg on 10 Jun 2023, 00:39
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* Data collection of vycor and glass samples in SAXS geometry until 9am
* Successful intervention on SA2_XTD1_ATT arm 6 by the vacuum group, see elog entry 237 by Raoul and Bianca . Thanks!
* Simultaneous CoC in the MID hutch to WAXS geometry. |
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Shift summary, posted by Ulrike Boesenberg on 11 Jun 2023, 02:08
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* First half of the day was used to optimize seeding performance
* Cryo issues started at 6 pm; were resolved by 9:30pm
* After some tuning, we observed very nice seeding performance around midnight (ratio better than 1:1) |
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Shift summary, posted by Ulrike Boesenberg on 12 Jun 2023, 02:01
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*Some more tuning of HXRSS and focus optimization in the morning.
*XPCS data taken in WAXS geometry on different glass samples. |