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  Status of commissioning, report also here plots are reports., Page 4 of 24  Not logged in ELOG logo
ID Date Authordown Status Type Category Location Title Text Attachments
  162   Tue Oct 18 17:51:12 2022 Ronic ChicheFixedinfolasers and opticsThomX iglooStrecher and fiber injection alignmentIn preparation for tomorrow morning, I
did a test with a 45° mount to have a
power pickup inside the injection box.
  
  163   Wed Oct 19 14:57:43 2022 Ronic ChicheFixedinfolasers and opticsThomX iglooStrecher and fiber injection alignmentThis morning with Manar, we measured the
power at different points:
- direct measurement at the output
  
  164   Wed Oct 19 15:01:32 2022 Ronic ChicheFixedinfolasers and opticsThomX iglooStrecher and fiber injection alignmentThis morning with Ronic, using a pickup
mirror, we measured the power in different
locations along the path of the stretcher
  
  165   Thu Oct 20 15:01:02 2022 Ronic ChicheFixedinfolasers and opticsThomX iglooStrecher and fiber injection alignmentI used the 33MHz spectrum measurement :
https://elog.lal.in2p3.fr/FPC/THOMX+commissioning/153
fitted by P=P0*sech²((f-f0)/df)
 D24-02.xls33MHz_power_spectrum_after_double_patch_strecher_CVBG.png 
  166   Mon Oct 24 17:35:01 2022 Ronic ChicheFixedinfolasers and opticsThomX iglooStrecher and fiber injection alignmentManar + Victor, today in the morning we
aligned the CVBG of the stretcher.

The double path using the mirror
  
  167   Wed Nov 2 11:42:43 2022 Ronic ChicheFixedinfolasers and opticsThomX iglooStrecher and fiber injection alignmentThis morning with Manar, we continued the
strecher CVBG alignment and fiber injection
procedure :
  
  168   Thu Nov 3 09:09:18 2022 Ronic ChicheFixedinfolasers and opticsThomX iglooStrecher and fiber injection alignmentthis morning : still 6.2 mW at the output
of the fiber.

the powermeter has been removed
  
  169   Wed Nov 9 11:34:54 2022 Ronic ChicheFixedinfolasers and opticsThomX iglooStrecher and fiber injection alignmentMonday 7/11 morning, the power in the fiber
was still 6.2 mW

  
  170   Wed Nov 9 13:03:50 2022 Ronic ChicheFixedissuelasers and opticsThomX iglooAlphanov amplifier issueon Monday morning 7/11, we tried to restart
the Alphanov amplifier which was not turned
on since end of april 2022, but it didn't
  
  171   Wed Nov 9 14:49:52 2022 Ronic ChicheFixedissuelasers and opticsThomX iglooAlphanov amplifier issueI just tested the fuse inside the black
ON/OFF switch on the rear panel => it
is OK ! :-(
  
  172   Thu Dec 1 13:51:05 2022 Ronic ChicheFixedissuelasers and opticsThomX iglooAlphanov amplifier issueThe laser amplifier controller has been
sent yesterday and received today by Alphannov.

they should do the assessment quickly...
  
  173   Tue Dec 6 11:47:36 2022 Ronic ChicheFixedissuelasers and opticsThomX iglooAlphanov amplifier issueToday, I did a Teams meeting with Guillaume.
He didn't see any problem with
the controller.
 Sécurité_et_CC_ampli_Alphanov.pdf 
  174   Thu Dec 15 11:41:36 2022 Ronic ChicheFixedissuelasers and opticsThomX iglooAlphanov amplifier issueYesterday, we received the controller back
from Alphanov
and I tested it immediately in the
  
  175   Mon Jan 2 15:21:09 2023 Ronic ChicheFixedinfolasers and opticsThomX iglooAlphanov amplifier beam profile measurementtoday with Manar, we brought everything
to make the profile measurement.

the chiller was in error
  
  176   Thu Jan 5 09:58:50 2023 Ronic ChicheFixedinfolasers and opticsThomX iglooAlphanov amplifier beam profile measurementyesterday morning with Manar,

1) we fixed the threshold level
of the laser input signal which makes the
 Tutoriel_PD_PULS.pdf2023_Alphanov_Beam_Profile_setup.jpg 
  177   Mon Jan 9 12:11:14 2023 Ronic ChicheFixedinfolasers and opticsThomX iglooAlphanov amplifier beam profile measurementthis morning with Manar,

- we checked first the chiller
problem.
  
  179   Wed Jan 11 17:31:00 2023 Ronic ChicheFixedinfolasers and optics | softwareThomX iglooAlphanov amplifier beam profile measurementToday with
Ronic 

For
 error_signal_Temperature_case_amplifier.jpg 
  180   Wed Jan 11 17:38:13 2023 Ronic ChicheFixedinfolasers and opticsThomX iglooAlphanov amplifier beam profile measurementthis morning with Manar,

- we fixed the chiller problem
(+/-2°C fluctuation around the set temperature
  
  181   Mon Jan 30 17:28:00 2023 Ronic ChicheFixedreportlasers and optics | softwareThomX iglooAlphanov amplifier beam profile measurementRonic on Friday operated the Amplifier
from the Alphanov software, switched it off
then turned on the LAL software,
  
  182   Mon Jan 30 17:28:33 2023 Ronic ChicheFixedreportlasers and optics | softwareThomX iglooAlphanov amplifier beam profile measurementthe laser amplifier worked for some days
but it ended to a "watchdog" alarm
which switches off the amplifier... investigation
  
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