| ID |
Date |
Author |
Status |
Type |
Category |
Location |
Title |
Text |
 |
|
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 |
|
|
406
|
Tue Feb 18 17:36:25 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 acquisition from 10:30am to
5:30pm
11k point in 7h => 1.57k points |
|
|
407
|
Tue Feb 18 19:33:27 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 same kind of measurement (pk-pk
of 1 sec of acquisition) done on the laser
PZT when the FP is at 90kW. |
|
|
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 |
|
|
410
|
Thu Feb 20 12:36:19 2025 |
Ronic Chiche | Fixed | info | lasers and optics | ThomX igloo | New power record in ThomX cavity | today, we were able
to store more than 94kW in the FP cavity,
always with the same parameter : 33% laser |
|
|
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 ? |
|
|
412
|
Fri Feb 21 19:40:50 2025 |
Ronic Chiche | Fixed | issue | software | ThomX igloo | strange drift (new effect !?!) | today, we had a strange effect :
both the laser and the FP cavity were
locked on the RF frequency (500.10045 MHz), |
|
|
413
|
Fri Feb 21 19:52:57 2025 |
Ronic Chiche | Fixed | info | mechanics | lasers and optics | detectors and electronics | software | ThomX igloo | Good Xrays production trend | this afternoon, we succeeded to get a quite
long Xray production trend around 15-20 minutes
with a flux above 25k on i1. |
|
|
414
|
Tue Mar 4 14:54:31 2025 |
Ronic Chiche | Fixed | info | mechanics | software | ThomX igloo | New direction for cavity motors | from now on, one reverts the FP cavity
motors direction to compensate the long drift
from the begining of the project. |
|
|
415
|
Wed Mar 5 13:17:26 2025 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | ThomX igloo | Electrons-Photons phase stability measurement | we installed a measurement at the IP with
the BPM for ion cleaning for electrons and
we used a fast photodiode at the output of |
|
|
416
|
Wed Mar 5 15:08:38 2025 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | ThomX igloo | Electrons-Photons phase stability measurement | the phase between the 500Mhz ring RF oscillator
and the electrons is measured on a BPM and
is very stable after 2-3ms (<< 6ps, |
|
|
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. |
|
|
418
|
Tue Mar 18 11:45:21 2025 |
Ronic Chiche | Fixed | info | lasers and optics | ThomX igloo | New power record in ThomX cavity | today, we were able to store more than
95kW in the FP cavity, always with the same
parameter : 33% laser amplifier ratio |
|