| ID |
Date |
Author |
Status |
Type |
Category |
Location |
Title |
Text |
 |
|
379
|
Wed Nov 20 12:00:47 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | ThomX igloo | Checking the amplifier power | we did a long term run (25 mn) with the
powermeter located at the FPC position at
33% amplifier ratio. |
|
|
380
|
Wed Nov 20 12:42:11 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | ThomX igloo | Checking the amplifier power | I put back and aligned the 1/2 waveplate
only and I get 71kW max after its optimization
and optimizing the CEP and alignment (without |
|
|
381
|
Wed Nov 20 18:55:37 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | ThomX igloo | Checking the amplifier power | this afternoon, we put back the 1/4 and
1/2 waveplates and after a long alignment/angle
tuning/CEP optimization process, we hardly |
|
|
382
|
Fri Nov 22 10:23:33 2024 |
Ronic Chiche | Under Process | report | mechanics | lasers and optics | detectors and electronics | ThomX igloo | day by day run for X-ray production | the RF frequency changed from 500.1003MHz
to 500.0913MHz => it reduced by 9kHz @
500MHz which is equivalent to 600Hz @ 33MHz |
|
|
383
|
Tue Nov 26 18:00:14 2024 |
Ronic Chiche | Under Process | report | mechanics | lasers and optics | detectors and electronics | ThomX igloo | day by day run for X-ray production | at the begining of the day, we started
to get ~81kW in the FPC for 33% amplifier
ratio and after ~1h, we got 84kW after CEP |
|
|
384
|
Wed Dec 4 12:26:03 2024 |
Ronic Chiche | Under Process | report | mechanics | lasers and optics | detectors and electronics | ThomX igloo | day by day run for X-ray production | today with Alice, we planned to do a long
run with ~80kW in the FPC to check if the
lock problems are coming from the interaction |
|
|
385
|
Wed Dec 4 17:11:50 2024 |
Ronic Chiche | Under Process | report | mechanics | lasers and optics | detectors and electronics | ThomX igloo | day by day run for X-ray production | we observed that :
- the MOT.03 motor always exhibits
some perturbations on the transmitted, reflected |
|
|
386
|
Wed Dec 4 17:53:49 2024 |
Ronic Chiche | Under Process | report | mechanics | lasers and optics | detectors and electronics | ThomX igloo | day by day run for X-ray production | last thing we tried :
we removed the threshold on the
FPC/RF error signal. |
|
|
387
|
Wed Dec 11 18:51:35 2024 |
Ronic Chiche | Under Process | report | mechanics | lasers and optics | detectors and electronics | ThomX igloo | day by day run for X-ray production | This morning, I added an amplifier on the
33MHz beating signal in between the mixer+LPF
and the scope/Laselock. |
|
|
388
|
Thu Dec 12 18:28:02 2024 |
Ronic Chiche | Under Process | report | mechanics | lasers and optics | detectors and electronics | ThomX igloo | day by day run for X-ray production | major result of the day: X-ray vertical
scan by moving the hexapod
abscise : hexapod position |
|
|
389
|
Tue Dec 17 16:28:32 2024 |
Ronic Chiche | Under Process | report | mechanics | lasers and optics | detectors and electronics | ThomX igloo | day by day run for X-ray production | this morning, Kevin reduced the steering
current in the IcePap controllers of the
FP cavity motors. |
|
|
390
|
Tue Jan 7 10:18:08 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, I restarted the cavity after
the Christmas shutdown.
everything went fine. |
|
|
391
|
Wed Jan 8 12:24:48 2025 |
Ronic Chiche | Under Process | info | lasers and optics | detectors and electronics | cabling | ThomX igloo | CEM noise measurements | The goal of these measurements is to check
if one can find some correlation between
the CFP lock losses observed during a run |
|
|
392
|
Wed Jan 8 16:08:59 2025 |
Ronic Chiche | Under Process | info | lasers and optics | detectors and electronics | cabling | ThomX igloo | CEM noise measurements | This afternoon, we started almost all the
parts of the machine with Vincent and Nicolas,
and we didn't see any change in the Loop |
|
|
393
|
Wed Jan 22 15:32:53 2025 |
Ronic Chiche | Fixed | info | mechanics | lasers and optics | vacuum | ThomX igloo | correlations between vacuum gauges and lock losses @ 20Hz | the machine people saw a correlation between
BPM jumps and vacuum gauges peaks related
to breakdowns in the beam pipe. |
|
|
394
|
Thu Jan 23 17:55:41 2025 |
Ronic Chiche | Under Process | report | mechanics | lasers and optics | detectors and electronics | ThomX igloo | day by day run for X-ray production | today we did x-rays => we got 41 000
pA at maximum and 90kW in the FPC for 33%
amplifier ratio. |
|
|
395
|
Thu Feb 6 10:29:36 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, I restarted the lock of the
CFP after almost 2 weeks without operation.
after quick alignment and CEP tuning, |
|
|
396
|
Fri Feb 7 15:35:37 2025 |
Ronic Chiche | Under Process | info | mechanics | lasers and optics | detectors and electronics | ThomX igloo | correlations between accelerometer and lock losses @ 20Hz | I installed an accelerometer setup in the
bunker.
presently, the accelerometer is placed |
|
|
397
|
Tue Feb 11 10:55:21 2025 |
Ronic Chiche | Under Process | info | mechanics | lasers and optics | detectors and electronics | ThomX igloo | correlations between accelerometer and lock losses @ 20Hz | today I connected a copy of the laser PZT
signal to the 2nd scope CH2 (with AC coupling
to remove the DC offset) to be able to monitor |
|
|
398
|
Fri Feb 14 10:11:00 2025 |
Ronic Chiche | Under Process | info | mechanics | lasers and optics | detectors and electronics | ThomX igloo | correlations between accelerometer and lock losses @ 20Hz | this morning, I did some measurement with
nobody interfering with the tests.
- the "no noise" image |
|