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THOMX orders THOMX installation THOMX commissioning THOMX control command

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ID Date Author Status Type Category Location Title Text   408   Wed Feb 19 09:28:12 2025 Ronic Chiche Under Process info mechanics | lasers and optics | detectors and electronics ThomX igloo correlations between accelerometer and lock losses @ 20Hz long term pk-pk measurement of the accelerometer (placed on the optical cavity table, on the marble part close to the laser oscillator)      409   Wed Feb 19 10:35:06 2025 Ronic Chiche Under Process info mechanics | lasers and optics | detectors and electronics ThomX igloo correlations between accelerometer and lock losses @ 20Hz I installed the accelerometer on the ground close to one feet of the FP cavity hexapod (see picture) and restarted the acquisition      411   Fri Feb 21 10:13:03 2025 Ronic Chiche Under Process info mechanics | lasers and optics | detectors and electronics ThomX igloo correlations between accelerometer and lock losses @ 20Hz for this 20Hz oscillation, could it be a natural resonance of the optical table placed on its feet ?      417   Tue Mar 18 11:25:07 2025 Ronic Chiche Under Process report mechanics | lasers and optics | detectors and electronics ThomX igloo day by day run for X-ray production this morning, the cavity was pretty misaligned => basic alignment in y direction helps a lot => 93kW for 33% amp ratio.      419   Mon Mar 31 17:12:56 2025 Ronic Chiche Under Process report mechanics | lasers and optics | detectors and electronics ThomX igloo day by day run for X-ray production today, the alignment of FP cavity was so bad that I tuned the 01 mode by error (CEP and alignment)...  insead of the 00      421   Tue Apr 29 09:26:08 2025 Ronic Chiche Under Process report mechanics | lasers and optics | detectors and electronics ThomX igloo day by day run for X-ray production today, after 1 week of vacation, I was able to easily lock the cavity with 92kW with 33% amp ratio without too much optimizations      422   Fri May 2 10:05:43 2025 Ronic Chiche Under Process report lasers and optics ThomX igloo air conditionning in ThomX Bunker The temperature slitly increase in thomx Bunker from 23° to 24° during the last day.      423   Tue May 6 09:29:43 2025 Ronic Chiche Under Process report lasers and optics ThomX igloo air conditionning in ThomX Bunker after the new temperature setting for the bunker air cooling (winter to summer transition), the temperature drop from 24° to 20°C      424   Tue May 6 10:58:18 2025 Ronic Chiche Under Process report lasers and optics ThomX igloo air conditionning in ThomX Bunker I finally got 93-94kW for 33% amp ratio. I had to move the FP-cavity length to compensate the temperature change in the      425   Wed May 14 09:50:52 2025 Ronic Chiche Under Process report mechanics | lasers and optics | detectors and electronics ThomX igloo day by day run for X-ray production Today, I removed the NKT oscillator from the bunker to put it in the PLIC room. I locked the FP cavity and obtained      427   Wed Jun 11 18:59:34 2025 Ronic Chiche Under Process issue mechanics | lasers and optics | vacuum | detectors and electronics ThomX igloo Possible causes for the noise in the FP-cavity system list of possible causes of the high frequency noise which makes the system loosing the lock => to be checked.      429   Wed Jun 25 09:57:56 2025 Ronic Chiche Under Process issue mechanics | lasers and optics | vacuum | detectors and electronics ThomX igloo Possible causes for the noise in the FP-cavity system 4.3 - Vibrations of the mirror mounts due to temperature related to cavity power (the electrons machine is OFF)      430   Wed Jun 25 18:48:28 2025 Ronic Chiche Under Process report mechanics | lasers and optics | detectors and electronics ThomX igloo day by day run for X-ray production New locking parameters (I got 98kW for 33% amp ratio) : Axis 18 position : +0009420      433   Tue Jul 1 17:31:41 2025 Ronic Chiche Under Process report mechanics | lasers and optics | detectors and electronics ThomX igloo day by day run for X-ray production We had a long run without any lock loss during ~1h with the 23kW recipie in the morning. during the afternoon, we had some      434   Tue Jul 8 18:45:17 2025 Ronic Chiche Under Process report mechanics | lasers and optics | detectors and electronics ThomX igloo day by day run for X-ray production long run yesterday at relatively low power (~23kW) with double loop (FPC + RF) between 10am and 6pm      435   Tue Jul 8 18:48:51 2025 Ronic Chiche Under Process report mechanics | lasers and optics | detectors and electronics ThomX igloo day by day run for X-ray production long run today at relatively nominal power (~90kW) with double loop (FPC + RF) between 13:30am and 6:30pm      444   Tue Jul 15 17:34:13 2025 Ronic Chiche Under Process info lasers and optics ThomX igloo Stability test Without and with The laser starts at 93 KW. This morning I operated the laser locked with the RF for 1h30 without any delock.      445   Wed Jul 16 17:17:57 2025 Ronic Chiche Under Process info lasers and optics ThomX igloo Suite tests stabilité We continue to find what gives high freq. perturbation. The laser starts at 92 KW it is      446   Fri Jul 18 09:23:40 2025 Ronic Chiche Under Process info lasers and optics ThomX igloo Xrays experiment with prostate Today we do XRays for experiment. The laser start to 33% at 93 KW but Pgain = 0.033      447   Fri Jul 18 15:56:40 2025 Ronic Chiche Under Process info lasers and optics ThomX igloo laser operation again with machine OFF The laser start at 33% with 92 KW optimized and P=0.03

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