| ID |
Date |
Author |
Status |
Type |
Category |
Location |
Title |
Text |
 |
|
233
|
Wed Aug 2 13:13:52 2023 |
Ronic Chiche | Fixed | issue | lasers and optics | detectors and electronics | ThomX igloo | work with HV voltage on the Laselock | presently, the voltage on the laser PZT
is 0-10V, but during the several runs we
did, this voltage is too low to compensate |
|
|
234
|
Tue Sep 5 17:59:24 2023 |
Ronic Chiche | Fixed | issue | lasers and optics | detectors and electronics | ThomX igloo | work with HV voltage on the Laselock | Yesterday, I checked the 2 output HV channels
of the LaseLock : they work properly but
the noise is bigger than the low voltage |
|
|
248
|
Wed Sep 13 17:57:08 2023 |
Ronic Chiche | Fixed | issue | lasers and optics | detectors and electronics | ThomX igloo | work with HV voltage on the Laselock | This afternoon, I connected the HV output
of the Laselock (instead of the standard
0-10V output) to the FP-cavity PZT to increase |
|
|
5
|
Wed Oct 3 11:28:46 2018 |
Ronic Chiche | Fixed | report | mechanics | cabling | Optical room | test des vérins ISP 20mm et 6mm | Après avoir utilisé la chaine
: driver ISP - cable ISP DB9 - Feedthrough
enceinte DB9-DB9 - cable perlé DB9-SUB-C |
|
|
6
|
Fri Oct 5 10:17:30 2018 |
Ronic Chiche | Fixed | report | mechanics | cabling | Optical room | test des vérins ISP 20mm et 6mm |
|
|
|
3
|
Tue Oct 2 16:23:54 2018 |
Ronic Chiche | Fixed | issue | mechanics | cabling | software | Optical room | test des vérins ISP | * les vérins de 20mm (axe Z) ont
été testés sur table
grace à une rallonge SUB-C - DB9, |
|
|
4
|
Tue Oct 2 18:00:36 2018 |
Ronic Chiche | Fixed | issue | mechanics | cabling | software | Optical room | test des vérins ISP |
|
|
|
43
|
Tue Jun 18 20:44:34 2019 |
Huan Wang | Fixed | info | lasers and optics | Optical room | telescope for Koheras | telescope of Koheras is removed, information
record here:
- distance between collimator edge |
|
|
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), |
|
|
274
|
Wed Nov 8 18:52:44 2023 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | ThomX igloo | some changes in the feedback scheme | from several weeks, the maximum power stored
in the FP-cavity was ~ 5kW.
today with Daniele, we finished |
|
|
348
|
Tue Aug 27 09:59:18 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | software | ThomX igloo | restarting CFP system after the long summer shutdown (RF section conditionning) and Alphanov amplifier issue | temperature in the casemate ~ 19.5°C
stable
this morning, I measured the power |
|
|
349
|
Tue Aug 27 10:19:08 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | software | ThomX igloo | restarting CFP system after the long summer shutdown (RF section conditionning) and Alphanov amplifier issue | I refilled the chiller and the stabilized
temperature is @ 25°C
we started the 3rd stage of the |
|
|
350
|
Tue Aug 27 11:33:24 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | software | ThomX igloo | restarting CFP system after the long summer shutdown (RF section conditionning) and Alphanov amplifier issue | we had to move the laser cavity motor to
find the resonances and change a lot the
CEP. |
|
|
351
|
Tue Aug 27 12:31:19 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | software | ThomX igloo | restarting CFP system after the long summer shutdown (RF section conditionning) and Alphanov amplifier issue | after doing some alignment (walking procedure
on the Y axis), and CEP optimization, I got
83kW for 33% on the laser amplifier with |
|
|
352
|
Fri Aug 30 10:50:45 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | software | ThomX igloo | restarting CFP system after the long summer shutdown (RF section conditionning) and Alphanov amplifier issue | this morning with Daniele, we are measuring
the amplifier power just before the FP-cavity.
Casemate temperature @19.5°C |
|
|
353
|
Fri Aug 30 12:05:38 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | software | ThomX igloo | restarting CFP system after the long summer shutdown (RF section conditionning) and Alphanov amplifier issue | After the summer power shutdown, I restarted
all the equipements and got quickly ~80kW
for 33% amplifier ratio with CEP optimization |
|
|
354
|
Fri Aug 30 17:59:01 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | software | ThomX igloo | restarting CFP system after the long summer shutdown (RF section conditionning) and Alphanov amplifier issue | amplifier power measurement before the
compressor CVBG.
we used a mirror in between the amplifier |
|
|
358
|
Fri Sep 6 12:10:51 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | software | ThomX igloo | restarting CFP system after the long summer shutdown (RF section conditionning) and Alphanov amplifier issue | after redoing the alignment of the CVBG,
we got back the initial power in the FPC
(87kW) |
|
|
359
|
Fri Sep 6 15:20:20 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | software | ThomX igloo | restarting CFP system after the long summer shutdown (RF section conditionning) and Alphanov amplifier issue | now, the Ring RF frequency is set to 500.067MHz.
so the CFP/laser frequency should
be 500.067MHz/15 = 33.3378MHz. |
|
|
360
|
Fri Sep 6 17:21:51 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | software | ThomX igloo | restarting CFP system after the long summer shutdown (RF section conditionning) and Alphanov amplifier issue | I changed a little bit the locking parameters
(see picture) for the RF/FPC loop and it
locked rapidely. |
|