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ID Date Author Status Type Category Location Title Text Attachments
  433   Tue Jul 1 17:31:41 2025 Ronic ChicheUnder Processreportmechanics | lasers and optics | detectors and electronicsThomX iglooday by day run for X-ray productionWe had a long run without any lock loss
during ~1h with the 23kW recipie in the morning.
during the afternoon, we had some
  
  432   Tue Jul 1 12:13:18 2025 Ronic ChicheFixedinfolasers and opticsThomX iglooRecipies for different FPC powerFor ~ 23kW power in the FP-cavity:


Alplhanov amplifier ratio
: 15%
  
  431   Thu Jun 26 12:37:22 2025 Ronic ChicheFixedinfolasers and opticsThomX iglooRecipies for different FPC powerFor ~ 46kW power in the FP-cavity:


Alplhanov amplifier ratio
: 20%
  
  430   Wed Jun 25 18:48:28 2025 Ronic ChicheUnder Processreportmechanics | lasers and optics | detectors and electronicsThomX iglooday by day run for X-ray productionNew locking parameters (I got 98kW for
33% amp ratio) :

Axis 18 position : +0009420
  
  429   Wed Jun 25 09:57:56 2025 Ronic ChicheUnder Processissuemechanics | lasers and optics | vacuum | detectors and electronicsThomX iglooPossible causes for the noise in the FP-cavity system4.3 - Vibrations of the mirror mounts due
to temperature related to cavity power (the
electrons machine is OFF)
 long_run_wihtout_lock_loss.pnglong_run_wihtout_lock_loss_with_optimum_CEP.png 
  428   Wed Jun 25 09:43:36 2025 Ronic ChicheFixedinfolasers and opticsThomX iglooNew power record in ThomX cavityyesterday, we were able to store more than
98kW in the FP cavity, always with the same
parameter : 33% laser amplifier ratio
 img1(3).jpg 
  427   Wed Jun 11 18:59:34 2025 Ronic ChicheUnder Processissuemechanics | lasers and optics | vacuum | detectors and electronicsThomX iglooPossible causes for the noise in the FP-cavity systemlist of possible causes of the high frequency
noise which makes the system loosing the
lock => to be checked.
  
  426   Wed Jun 11 11:35:22 2025 Ronic ChicheFixedinfolasers and optics | detectors and electronics | softwareThomX igloo33MHz phase adjustmentthe 33MHz beating signal (phase) is used
to start and stop automatically the lock
on the 500MHz beating signal.
  
  425   Wed May 14 09:50:52 2025 Ronic ChicheUnder Processreportmechanics | lasers and optics | detectors and electronicsThomX iglooday by day run for X-ray productionToday, I removed the NKT oscillator from
the bunker to put it in the PLIC room.

I locked the FP cavity and obtained
  
  424   Tue May 6 10:58:18 2025 Ronic ChicheUnder Processreportlasers and opticsThomX iglooair conditionning in ThomX BunkerI finally got 93-94kW for 33% amp ratio.

I had to move the FP-cavity length
to compensate the temperature change in the
  
  423   Tue May 6 09:29:43 2025 Ronic ChicheUnder Processreportlasers and opticsThomX iglooair conditionning in ThomX Bunkerafter the new temperature setting for the
bunker air cooling (winter to summer transition),
the temperature drop from 24° to 20°C
 Sans_titre.png 
  422   Fri May 2 10:05:43 2025 Ronic ChicheUnder Processreportlasers and opticsThomX iglooair conditionning in ThomX BunkerThe temperature slitly increase in thomx
Bunker from 23° to 24° during the
last day.
 temp.png 
  421   Tue Apr 29 09:26:08 2025 Ronic ChicheUnder Processreportmechanics | lasers and optics | detectors and electronicsThomX iglooday by day run for X-ray productiontoday, after 1 week of vacation, I was
able to easily lock the cavity with 92kW
with 33% amp ratio without too much optimizations
  
  420   Mon Mar 31 18:19:30 2025 Ronic ChicheFixedinfolasers and opticsThomX iglooNew power record in ThomX cavitytoday, we were able
to store more than 97kW in the FP cavity,
always with the same parameter : 33% laser
 20250331_181029.jpg 
  419   Mon Mar 31 17:12:56 2025 Ronic ChicheUnder Processreportmechanics | lasers and optics | detectors and electronicsThomX iglooday by day run for X-ray productiontoday, the alignment of FP cavity was so
bad that I tuned the 01 mode by error (CEP
and alignment)...  insead of the 00
  
  418   Tue Mar 18 11:45:21 2025 Ronic ChicheFixedinfolasers and opticsThomX iglooNew power record in ThomX cavitytoday, we were able to store more than
95kW in the FP cavity, always with the same
parameter : 33% laser amplifier ratio
 img1(2).jpg 
  417   Tue Mar 18 11:25:07 2025 Ronic ChicheUnder Processreportmechanics | lasers and optics | detectors and electronicsThomX iglooday by day run for X-ray productionthis morning, the cavity was pretty misaligned
=> basic alignment in y direction helps
a lot => 93kW for 33% amp ratio.
  
  416   Wed Mar 5 15:08:38 2025 Ronic ChicheFixedinfolasers and optics | detectors and electronicsThomX iglooElectrons-Photons phase stability measurementthe phase between the 500Mhz ring RF oscillator
and the electrons is measured on a BPM and
is very stable after 2-3ms (<< 6ps,
  
  415   Wed Mar 5 13:17:26 2025 Ronic ChicheFixedinfolasers and optics | detectors and electronicsThomX iglooElectrons-Photons phase stability measurementwe installed a measurement at the IP with
the BPM for ion cleaning for electrons and
we used a fast photodiode at the output of
 img1(1).jpg 
  414   Tue Mar 4 14:54:31 2025 Ronic ChicheFixedinfomechanics | softwareThomX iglooNew direction for cavity motorsfrom now on, one reverts the FP cavity
motors direction to compensate the long drift
from the begining of the project.
  
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