| ID |
Date |
Author |
Status |
Type |
Category |
Location |
Title |
Text |
 |
|
375
|
Wed Oct 23 12:23:10 2024 |
Ronic Chiche | Under Process | info | lasers and optics | software | ThomX igloo | Optimizing lock parameters for stable X-ray production | this morning, I did some walking procedure
and I got 82kW in the FPC with 33% amplifier
ratio (after CEP optimization too). |
|
|
376
|
Fri Nov 8 15:23:11 2024 |
Ronic Chiche | Under Process | info | lasers and optics | software | ThomX igloo | Optimizing lock parameters for stable X-ray production | this morning, I did some walking procedure
and CEP alignment to get ~80kW in the FPC
with 33% amplifier ratio. |
|
|
377
|
Tue Nov 19 17:37:55 2024 |
Ronic Chiche | Under Process | info | lasers and optics | software | ThomX igloo | Optimizing lock parameters for stable X-ray production | the RF frequency is now 500.1003MHz which
is equivalent (if divided by 15) to 33.34002MHz.
the frequency has to be changed |
|
|
378
|
Wed Nov 20 11:28:01 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | ThomX igloo | Checking the amplifier power | this morning, with Daniele, we checked
the amplifier power, right after the CVBG
(the power meter has to be placed on a metal |
|
|
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 |
|
|
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. |
|
|
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 |
|
|
399
|
Fri Feb 14 10:58:48 2025 |
Ronic Chiche | Under Process | info | mechanics | lasers and optics | detectors and electronics | ThomX igloo | correlations between accelerometer and lock losses @ 20Hz | then, I moved the accelerometer on top
of the "X-hutch side" vessel, placed
directly on the metal top case, inside the |
8x |
|
400
|
Fri Feb 14 19:08:09 2025 |
Ronic Chiche | Under Process | info | mechanics | lasers and optics | detectors and electronics | ThomX igloo | correlations between accelerometer and lock losses @ 20Hz | at the end of the day, I moved the accelerometer
from the top of the cavity vessel to the
top case of the Onefive laser. |
|
|
401
|
Mon Feb 17 09:52:21 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 new plots with
the accelerometer placed on the top of the
case of the OneFive laser. |
6x |
|
402
|
Mon Feb 17 10:48:00 2025 |
Ronic Chiche | Under Process | info | mechanics | lasers and optics | detectors and electronics | ThomX igloo | correlations between accelerometer and lock losses @ 20Hz | new plots, with the accelerometer placed
directly on the optical cavity table (on
the marble part), close to the oscillator. |
7x |
|
403
|
Mon Feb 17 12:12:02 2025 |
Ronic Chiche | Fixed | info | lasers and optics | ThomX igloo | New power record in ThomX cavity | today, we were able to store more than
93kW in the FP cavity, always with the same
parameter : 33% laser amplifier ratio |
|
|
404
|
Mon Feb 17 17:37:27 2025 |
Ronic Chiche | Under Process | info | mechanics | lasers and optics | detectors and electronics | ThomX igloo | correlations between accelerometer and lock losses @ 20Hz | one possible source for this acoustic noise
was the vibrations coming from the water
cooling of the dipoles which is normally |
|
|
405
|
Tue Feb 18 10:40:55 2025 |
Ronic Chiche | Under Process | info | mechanics | lasers and optics | detectors and electronics | ThomX igloo | correlations between accelerometer and lock losses @ 20Hz | here is the pk-pk measurement of the accelerometer
during the whole night.
the recording started at 5pm yesterday |
|