CRL3: recalibration of y axis, test of x range and move to SEPS interlock trigger position, posted by karen appel on 16 Jan 2023, 16:01
|
CRL3 arm 2, 5 and 9 were mecanically religned to the V groove and retracted to some y position.
The y motor position was recalibrated by moving the motor to the lower limit switch, moving it up by 0.5 mm and then recalibrating the motor
and encoder position to the former software limit position. |
|
Shift summary, posted by karen appel on 04 Feb 2023, 08:34
|
We took the beam from 7 am, 24 h operation in three shifts.
We set up a new scheme for aligning the beam to the HED branch, which gives one X-ray axis downstream of the tunnel even if we operate at different
angles of M1 and M2 (i.e. 3 to 2 mrad). This relies on a fixed M3 Tx position and was tested for 2.5 mrad and 3 mrad during the shifts. CRL3 in the HED |
|
Shift summary, posted by karen appel on 05 Feb 2023, 08:40
|
Start up of HED ongoing for the three shifts
Day shift:
work on the new X-ray alignment scheme at 2, 2.5 and 3 mrad: test was positive and we can not work with Tx of M3 fixed at 4 mm for all |
|
Shift summary, posted by karen appel on 10 May 2023, 09:51
|
for 9th of May - 10th of May: user experiment 2740 , first users with DIPOLE100-X long pulse laser
Took beam at 18 keV with roughly 450 muJ
M1 and M2 Mirrors on Pt stripe, M3 on B4C and with Tx = 4 |
Late shift activities, posted by bouffetier on 17 Feb 2023, 17:16 7x
|
17 Feb 2023, 17:15 : We centered Pin in the FEL beam and then imaged this pin with ILM and FSI to get common references.
We corected astigmatism with OAP |
|
late shift summary, posted by bouffetier on 19 Feb 2023, 19:51
|
19 Feb 2023,15:30 Shift handover
Runs will be added in the general Elog for data runs and acqusitions (Elog-4)
|
|
Issue, posted by Yifeng Jiang on 07 Apr 2023, 23:57
|
After receiving beam from SPB, we noticed that there is a werid shape of beam in the FEL imager which was not observed yesterday.
Maybe someone left X-ray component in the beam. |
|
Issue, posted by Yifeng Jiang on 08 Apr 2023, 23:44
|
| We notice that 0.5 mm Silicon ATT in SASE1 causes holo beam profile in FEL imager. Maybe this silicon att has been damaged. |
|
Issue, posted by Yifeng Jiang on 18 Sep 2023, 19:14
|
We found that the x-ray pulse energy dropped a lot when we changed the undulator from 5.5 keV to 5.45 keV. We called BKR to optimise it (attachment
1)
=> There is a problem with the phase shifter of the undulator. It stacks sometime. If the x-ray intensity drops, we need to ask BKR to optimise |
|
Shift summary , posted by Wonhyuk Jo on 19 Apr 2023, 02:14
|
Achieved
Brought the X-ray to the end of the beamline.
Aligned the goneometer with a pin.
Found the timing of
AGIPD at the detector distance of about 3.4 m from the sample.
Found the timing of Jungfrau detector in burst mode.
Measured the |
|
Shift summary, posted by Wonhyuk Jo on 20 Apr 2023, 02:26
|
Achieved
Brought the 800 nm of optical pump laser to the hutch after the intervention.
Found the rough spatial and temporal overlap
between the X-ray and pump laser with MID X-ray eye.
Found the sufficient photo-induced effect on the user sample (HfN) with one unpumped |
|
Shift summary, posted by Wonhyuk Jo on 21 Apr 2023, 02:10
|
Shift Summary
Collected optical laser-induced dynamics in HfN and STO/SRO samples.
Jungfrau detector transferred data without data dropping issue.
|
|
Shift summary, posted by Wonhyuk Jo on 28 Aug 2023, 02:14
|
Shift summary for 28th of Aug.
- Realigned the center of rotation.
- MID took the seeded beam at about 120 uJ around 4 p.m. after the long intervention. |
|
Shift summary, posted by Wonhyuk Jo on 29 Aug 2023, 03:14
|
Shift summary for 29th of Aug.
- Conducted Time-resolved Bragg CDI experiment using 3rd harmonic pump laser.
- Collected coherent diffraction patterns from Perovskite-oxide nanocrystals for various time delay and laser fluence. |
|
Diamond detector / DDM commissioning, posted by Wolfgang Freund on 26 Nov 2022, 10:40
|
beam: 30 keV / 30 uJ
reduce to single bunch for insertion
put FEL imager in |
|
Shift summary, posted by Ulrike Boesenberg on 22 Apr 2023, 21:57
|
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) |
|
shift summary, posted by Ulrike Boesenberg on 24 Apr 2023, 02:45
|
Beam came back quickly after cryo-incident with ok seeding performance (not very stable).
Finish 3381-Pudell beamtime with
SRO/STO samples at time delays and laser fluences.
Decided not to scan the HXRSS energy but stay at current position
Mount samples |
|
Shift summary, posted by Ulrike Boesenberg on 09 Jun 2023, 02:22
|
*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. |
|
Shift summary, posted by Ulrike Boesenberg on 10 Jun 2023, 00:39
|
* 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. |
|
Shift summary, posted by Ulrike Boesenberg on 11 Jun 2023, 02:08
|
* 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) |