Issue, posted by Jan Gruenert on 08 Jun 2023, 17:05 
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SA2_XTD1_ATT solid attenuator vacuum issue
Info from VAC (Raul Villanueva) 12h30:
It 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.
On top of that, we also discover an issue with the configuration of a ion pump controller that have required the intervention of DOC / EEE. |
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Issue, posted by Jan Gruenert on 09 Jun 2023, 12:37
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Repair of SA2_XTD1_ATT
Status 12h30:
The current MID users took beam until 9am, only then the machine could start preparing for the tunnel access e.g. by decoupling the South branch, |
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Issue, posted by Jan Gruenert on 10 Jun 2023, 18:46
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18h05 : RC informs:
Machine is down, because Cryo-OK was lost.
Apparently it is a turbine but not the cold compressors. |
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Status, posted by Jan Gruenert on 10 Jun 2023, 21:52
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The Cryo team solved the problems, beam is back.
Downtime from 17h59 until 21h03. |
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Issue, posted by Michaela Petrich on 16 Jun 2023, 06:28
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staus of JUN16, 11:30
SA1 and SA3 have been adjusted to acceptable conditions to be compatible with simultaneus operation at SA2
tuning on SA2 is ongoing |
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Status, posted by Frederik Wolff-Fabris on 23 Jul 2023, 17:28
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Photon Activities by XPD colleagues in SA3 are concluded on Sunday 23.07 at 17:00. The photon commissioning activities are concluded for this
week.
The PRC agrees with RCs to handle beam back to BKR for further tuning activities while touching common nobs. |
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Status, posted by Harald Sinn on 25 Jul 2023, 19:18
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After the 12 hour cryo failure last night, it was decided to exchange a faulty window with some reduced transmission at the injector laser today
(see email by Andreas to xo-info yesterday).
This was sucessful and the injector tunnel was closed today 16:40 and restart of the gun is ongoing. Tomorrow ramp up and SASE tuning. |
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Status, posted by Harald Sinn on 28 Jul 2023, 14:46
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As discussed, there will be a beam interuption form 14:45 until probably 15:45 related to jitter studies at A1 that the BKR would like to try out.
Harald |
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Status, posted by Harald Sinn on 28 Jul 2023, 15:37
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Good news: The 'jitter'-tests was sucessful and BKR could identify the jitter source related to a wrong software setting around the AH1 module
of injector.
This was now fixed and the jitter has disappeared |
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Issue, posted by Harald Sinn on 29 Jul 2023, 17:57
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The hutch search of SASE3, SXP became defective around 5am.
DESY MPS group replaced a defective warning light unit and now it seems ok. |
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Issue, posted by Raśl Villanueva-Guerrero on 10 Aug 2023, 22:43
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Here is a capture of the observed issue with the SPB shutter the past night.
Observe the two opening/closing incidents: the first kept the shutter "OPEN" signal during 4 minutes aprox., and the second did |
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SA1 status, posted by Naresh Kujala on 22 Aug 2023, 15:52
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SA1 photon beam line status
- CRL1 lenses are in the beam.
- The shutter between XTD2 and XTD9 is closed (The reason is not known) |
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SA1 status, posted by Naresh Kujala on 22 Aug 2023, 15:56
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SA1 photon beam line status
- CRL1 lenses are in the beam.
- The shutter between XTD2 and XTD9 is closed (The reason is not known) |
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Status, posted by Naresh Kujala on 22 Aug 2023, 18:15
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Photon beam delivery status:
- Machine informed that beam will be handover to instruments SA1 (SPB/SFX) and SA3 (SXP) at 18.30hr
- Machine needs more time for SA2 and the next update will be at 20hr. |
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Status, posted by Naresh Kujala on 26 Aug 2023, 08:23
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- Machine updates;
Saturday 1:30 hr Cold compressor failed. The initial estimation of downtime was 20 hr, later in today morning crew gave a new estimation of time
of 30 hr. So the machine will be switched on and beam delivery to instruments will be tomorrow morning. Today at 3 pm, I will get more information and |
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Status, posted by Naresh Kujala on 26 Aug 2023, 18:02
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Dear All,
Two important machine updates.
1) Still, the forecasted time for the start-up of the machine will be tomorrow morning. |
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Status, posted by Naresh Kujala on 09 Sep 2023, 07:54
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Info from MRC (Lars)
-----------------------------------------------------------------------------
The cryo crew reports that the cold compressor that failed is, alas!, |
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Status, posted by Naresh Kujala on 09 Sep 2023, 11:36
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- Due to the failure of the cryo cold compressor. The machine is down.
- Next update 9 pm today
Please do watch public display for status info. |
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Status, posted by Naresh Kujala on 09 Sep 2023, 15:03
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Info from Machine RC (Lars):
----------------------------------------------------------------------------------------------------------------------------------------
Author: Froehlich |
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SA1 status, posted by Jan Gruenert on 19 Sep 2023, 18:58
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Concerning SASE1:
Please note that for this week the "remote power limit" was set to 5 Watt in order to protect CRL1.
The photon energies this week are 5.5 keV (FXE, day) and up to 7keV (SPB/SFX, night). |