| ID |
Date |
Author |
Status |
Type |
Category |
Important |
Subject |
Icon |
|
1064
|
Fri May 2 17:47:18 2025 |
Entered by Marie Jacquet from 134.158.89.45 on Fri May 2 17:47:04 2025 | | Shift summary | Linac Commissionning | Ring Commissioning |
|
Commissioning Spectro Vortex/FalconX | |
1) Setup (pj 1) : petite sphere "jaune" devant le vortex (je ne sais pas en quoi elle est faite, peut-etre un laiton ...)
2) "pulse characterisation" (pj2) --> fichier 20250502.ini cree
3) Acquisition avec 20250502.ini (pj3)
==> j'ai reussi a obtenir qqchose ... Quoi ? ==> aucune idee ... (le detecteur n'est pas calibre)
A suivre |
| Attachment 1: setup.jpeg
|
 |
| Attachment 2: 20250502_Pulse_charac_Capture.PNG
|
 |
| Attachment 3: 20250502_acquisition_Capture.PNG
|
 |
|
1074
|
Wed May 21 12:16:11 2025 |
MJ HG | | Shift summary | Linac Commissionning |
|
Axes Q1Q3 et Section apres chang cathode | |
iris 0.5
100 pC
ph ch max 259
** Align SOLENO (courbe violette pj)
dtx 0.9645
dtz 3.3546
drx 10.5272
drz -4.2522
Ph -50
soleno 230
** Alignement Q1Q3 avec Q2=0
str1H 0.58
str1V -2.32
str2V 2.67
str2H -2.91
------ BPMs en mm -----
BPM X : 2.49165875 +/- 0.0264994214802
BPM Y : -1.58554115 +/- 0.0471457516329
------------- TL -------------------
------ YAG Max proj. Pixels -----
YAG X : 196.0 +/- 32.9590655207
YAG Y : 301.8 +/- 1.12249721603
------ BPMs en mm -----
BPM X : -0.8536445 +/- 0.0224653251045
BPM Y : 0.13572405 +/- 0.0184326064258
=============================
------ BPMs en mm -----
BPM X : 2.47926945 +/- 0.0390444695309
BPM Y : -1.5873233 +/- 0.0378935718006
------------- TL -------------------
------ YAG Max proj. Pixels -----
YAG X : 194.3 +/- 22.8365934412
YAG Y : 298.15 +/- 2.59374246987
------ BPMs en mm -----
BPM X : -0.85523945 +/- 0.0164860398807
BPM Y : 0.13411955 +/- 0.0205878360725
** Alignement Q1Q3 avec Q2=3.40
str1H 0.61
str1V -2.33
str2V 2.62
str2H -2.94
------ BPMs en mm -----
BPM X : 2.3799488 +/- 0.547166562882
BPM Y : -1.50053775 +/- 0.345440854739
------------- TL -------------------
------ YAG Max proj. Pixels -----
YAG X : 391.45 +/- 0.497493718553
YAG Y : 260.85 +/- 0.572276157113
------ BPMs en mm -----
BPM X : -0.1347845 +/- 0.0147763972317
BPM Y : 0.3033404 +/- 0.0231588279526
==================================
------ BPMs en mm -----
BPM X : 2.50198645 +/- 0.0483311705284
BPM Y : -1.58757735 +/- 0.0292616993291
------------- TL -------------------
------ YAG Max proj. Pixels -----
YAG X : 392.95 +/- 0.217944947177
YAG Y : 261.75 +/- 0.887411967465
------ BPMs en mm -----
BPM X : -0.15454465 +/- 0.0248612337109
BPM Y : 0.25563065 +/- 0.0172710036254
** Alignement SECTION - valeurs elog 1002
str1H 1.64
str1V -1.94
str2V 2.87
str2H -3.77
------ BPMs en mm -----
BPM X : 3.7212973 +/- 0.0321787746381
BPM Y : -1.1086051 +/- 0.035323561294
------------- TL -------------------
------ YAG Max proj. Pixels -----
YAG X : 272.85 +/- 13.7886728876
YAG Y : 63.95 +/- 2.24666419387
------ BPMs en mm -----
BPM X : -1.40359675 +/- 0.0180544044346
BPM Y : 3.44180095 +/- 0.0179048640807
=====================================
------ BPMs en mm -----
BPM X : 3.73180015 +/- 0.0385873207716
BPM Y : -1.103907 +/- 0.031825702561
------------- TL -------------------
------ YAG Max proj. Pixels -----
YAG X : 273.3 +/- 9.61821189203
YAG Y : 65.0 +/- 3.25576411922
------ BPMs en mm -----
BPM X : -1.44032525 +/- 0.0264990471317
==========================================
** Affinage alignement horizontal section
str1H 1.0
str1V -1.94
str2V 2.87
str2H -3.5
phas section de 208 a 254 ==> bouge de 1/2 carreau sur le yagtl1
------ BPMs en mm -----
BPM X : 2.99469935 +/- 0.0349682538158
BPM Y : -1.1059392 +/- 0.0299572389909
------------- TL -------------------
------ YAG Max proj. Pixels -----
YAG X : 214.25 +/- 1.9461500456
YAG Y : 38.6 +/- 11.1462998345
------ BPMs en mm -----
BPM X : -2.7490436 +/- 0.0227112488283
BPM Y : 3.96375725 +/- 0.023805124412
Nouvelles mesures 22 mai
Essai 1
------------- LI -------------------
------ YAG LimaBPM Pixels -----
YAG X : 543.673067141 +/- 0.0
YAG Y : 151.648274933 +/- 0.0
------ YAG Max proj. Pixels -----
YAG X : nan +/- nan
YAG Y : nan +/- nan
------ BPMs en mm -----
BPM X : 2.4632059 +/- 0.0316530005069
BPM Y : -1.6726479 +/- 0.0265819058438
------------- TL -------------------
------ YAG LimaBPM Pixels -----
YAG X : 369.257120833 +/- 1.56616565007
YAG Y : 273.547982641 +/- 0.683787323708
------ YAG Max proj. Pixels -----
YAG X : 334.3 +/- 2.96816441593
YAG Y : 271.1 +/- 2.66270539114
------ BPMs en mm -----
BPM X : -0.1525054 +/- 0.0236681262596
BPM Y : -0.0879924 +/- 0.0200531052269
Essai 2 (pour Xcheck)
------------- LI -------------------
------ YAG LimaBPM Pixels -----
YAG X : 543.673067141 +/- 0.0
YAG Y : 151.648274933 +/- 2.84217094304e-14
------ YAG Max proj. Pixels -----
YAG X : nan +/- nan
YAG Y : nan +/- nan
------ BPMs en mm -----
BPM X : 2.4823413 +/- 0.0608051287237
BPM Y : -1.65147505 +/- 0.0539867056102
------------- TL -------------------
------ YAG LimaBPM Pixels -----
YAG X : 364.379556839 +/- 1.46350878787
YAG Y : 272.024693198 +/- 1.50274460733
------ YAG Max proj. Pixels -----
YAG X : 329.95 +/- 4.25998826289
YAG Y : 266.85 +/- 2.26439837484
------ BPMs en mm -----
BPM X : -0.1913847 +/- 0.0317457400782
BPM Y : -0.08146295 +/- 0.0201487667773
STR1 = [0.59, -2.40]
STR2 = [-2.89, 2.68] |
| Attachment 1: Sole_Align.png
|
 |
|
1077
|
Fri May 23 18:54:22 2025 |
Entered by Marie Jacquet from 134.158.89.45 on Fri May 23 18:54:08 2025 | | Shift summary | LI | Ring |
|
Spectro Si VORTEX : Calibration | |
Le spectro Si (vortex/falconX) a ete calibre avec une feuille d'etain
Calib checkee avec une feuille d'or
Cf screenshot spectre Sn (rouge) et Au (vert) superposes |
| Attachment 1: 2025-05-23_17-46-30-VORTEX_Sn_Au.png
|
 |
|
1087
|
Wed Jun 11 08:46:58 2025 |
Entered by Marie Jacquet from 134.158.205.17 on Wed Jun 11 08:46:44 2025 | | Shift summary | LI | Ring |
|
2025-06-04 Fluo-spectro : Spectre du 2025-06-04 | |
|
| Attachment 1: spectres_20250604.pdf
|
|
1092
|
Tue Jun 24 18:33:20 2025 |
Entered by Marie Jacquet from 134.158.205.58 on Tue Jun 24 18:33:05 2025 | | Shift summary | LI | TL | LE | Ring |
|
Spectres Bazin - Config "cone en plomb" - + enregistrement trends parametres machine (e- et X) | |
*** Spectres des 4 Echantillons Bazin + Backgroung avec :
- Cone en plomb pour pieger le faisceau - Ouverture : diametre hori ~ 1.5 , vert ~ 1.8 cm (Ouverture fentes 2 : hori =15 mm , vert =14 mm)
- Beaucoup plus de stat
*** Trends de galerienne (trentaine de parametres + enregistrement) :
==> tout est dans /data/marie.jacquet/2025-06-24 |
| Attachment 1: Backgroung.png
|
 |
| Attachment 2: Backgroung_enlarge.png
|
 |
| Attachment 3: 23B2136.png
|
 |
| Attachment 4: 23B2136_enlarge.png
|
 |
| Attachment 5: 24B251.png
|
 |
| Attachment 6: 24B251_enlarge.png
|
 |
| Attachment 7: 24B988.png
|
 |
| Attachment 8: 24B988_enlarge.png
|
 |
| Attachment 9: 24B1798.png
|
 |
| Attachment 10: 24B1798_enlarge.png
|
 |
|
1095
|
Fri Jun 27 08:49:36 2025 |
SC, ND | | Linac | LI | Linac Commissionning |
|
| |
8h49 allumage modulateur, chiller, laser
10h00 Beam ON
Prise de données Cf images jointes.
1 degree Celsius ~ 3.46 deg phase
15h04 modification phase canon à 281 pour regrouper le faisceau sur TL/BPM2
16:55 Stop ThomX
|
| Attachment 1: pos_TL2_vs_phase_RF.png
|
 |
| Attachment 2: pos_TL2_spX_vs_temp.png
|
 |
| Attachment 3: tp2spX_vs_time.png
|
 |
|
1099
|
Fri Jul 4 12:02:34 2025 |
ND | | Shift summary | TL |
|
Prise donnees 4/7 | |
Les aimants et les chillers etaient restes allumes.
11h59 Mise en chauffe
12h05 Cyclage aimants
13h40 Demarrage
15h37 Demarrage correction phase RF/laser selon sur temperature eau. (Coef =3.2)
atkpanel CALC/SY/Phase_stabilisation
16h22 Arret correction phase RF/laser selon sur temperature eau.
17h00 Cf plots joints, on voit que la correction stabilise le faisecau en X (points orange) . Il y a des variations regulières en Y à comprendre...
17h02 Demarrage correction phase RF/laser selon sur temperature eau. (Coef =3.4)
17h22 Arret correction phase RF/laser selon sur temperature eau. (Coef =3.4)
L'amelioration semble moins bonne...
18h06: Stop ThomX |
| Attachment 1: temp_vs_time.png
|
 |
| Attachment 2: tp2spX_vs_time.png
|
 |
| Attachment 3: tp2spY_vs_time.png
|
 |
| Attachment 4: pos_TL2_spX_vs_temp.png
|
 |
|
Draft
|
Thu Sep 11 08:49:20 2025 |
IC, VM | | | Ring |
|
BBA | |
08h50 Warm up of the modulator |
|
Draft
|
Thu Sep 11 11:12:36 2025 |
IC, VM | | | Ring |
|
BBA | |
8h50 Thomx warmup
10h20 HV is 'ON'
RF Gun phase is 254 dg. Sect phase is 243 dg. Sect. Att. 0.119 dB, Charges: -112 pC, -113. pC, -140 pC. Linac steeres: H [1.00 -3.49], V[1.92 2.13]
11h00 Beam is in the ring. Receipt 70 MeV from references BPM TL2 X=-1 mm
11h30 HV went standby. Maher fixed it.
11h32 HV is 'ON'
BPM transmission does not work properly (see screenshot)
Good storage at 70 MeV with the receipt.
Laser phase adjustment during the shift a few times
Work on the BBA at 70 MeV
For this, measurement of the ORM. There is a differennce with the model ORM. Attempts to tune the ring from the model. Work should be continued.
Due to this, only manual BBA can be done at the moment.
Starting also to adress the manual BBA in the TL. We used HCOR2 and QP5 and TL BPM.03. The results are not clear (big element-to-element distances). To be continued.
18h STOP THOMX
|
| Attachment 1: Screenshot_from_2025-09-11_12-57-22.png
|
 |
| Attachment 2: Screenshot_from_2025-09-11_17-36-53.png
|
 |
| Attachment 3: Screenshot_from_2025-09-11_17-47-30.png
|
 |
|
1129
|
Fri Sep 26 09:01:14 2025 |
ND | | Shift summary | LI | Diag |
|
Verifications IHM_cyclage | |
9:00 Accès pour FPC
Recherche des problemes de plantage de l'IHM cyclage.
Plantages difficiles a reproduire (pas de plantage quand j'essaie).
Quelques optimisation du code.
git pull
Ajustement des contantes Ks des BPM LI, TL, EL en fonction des attenuations de cables.
Recherche du probleme de profondeur memoire des BPMs.
|
|
1135
|
Fri Oct 10 09:20:34 2025 |
ND, VM | | Shift summary | Diag | SY |
|
Prise de données 10/10 | |
9:00 Mise en chauffe
9:20 Intervention de deux personnes de Dalkia dans l'igloo.
9h30 Cyclage aimants
10:00 Info: pas de clim laser aujourd'hui (intervention Dalkia en cours)
Etude des coups manqués en fonction de la phase du dephaseur rigol.
12h00 HV is ON at 1215 V
12h05 Laser iris set to 1.3 mm
12h20 Etude signal septum: le signal est tres bruité.
13h00 Faisceau MRSV visible en salle laser
13h20 Etude des coups manqués en fonction de la phase du dephaseur rigol. (cf plot)
Les phases rigol où il y a des pertes se repetent tous les 24 degrees avec une largeur de 6degrees. Reproductible sur plusieurs mesures.
Changement de la frequence anneau: + 4.5kHz, delta phase=52degrees
Etude des coups manqués en fonction de la phase du dephaseur rigol. (cf plot)
C'est a nouveau reproductible tous les 24 degrees mais a des phases differentes.
Changement de fréquence de sonnerie plus : + 4,5 kHz, delta RF Phase 43 dg. (99 dg. on the limit)
**Si vous avez un probleme de coups manqués, faites +12 degrees sur le dephaseur Rigol. Un bouton a ete ajouté sur l'IHM Ring Cavity**
Analyse de l'amplitude des pulses du septum (cf plot en mode persistance): Bruit de l'ordre de 5mV sur 850mV.
Le kicker tire quand l'impulsion du septum n'est pas au maximum.
16h30 EL quads: [-3.67; 4.2; 0.0; -4.08; 3.8; 2.57; -2.54] A (from simulation). Ext. kiker 7422 V. There is image on the EL SST.01 (saved).
16h35 Stop ThomX
Image processing results from the EL/DG/SST.01 camera. The resolution of the target image is 9.8 μm/pixel (horizontally).
The rms width of the horizontal beam profile (Gaussian approximation) is 325 pixels or 3.2 mm (see the figure uploaded). The simulated dispersion at the screen is about 1 m, so the rms energy spread is 0.32%. |
| Attachment 1: Scan_missed_triggers_initphase_115_range_360_freq50010045.png
|
 |
| Attachment 2: Scan_missed_triggers_initphase_115_range_48_f50010495.png
|
 |
| Attachment 3: Scan_missed_triggers_initphase_115_range_48_f50010795.png
|
 |
| Attachment 4: Orbites_at_0_and_plus_9_kHz_Screenshot_from_2025-10-10_14-50-09.png
|
 |
| Attachment 5: Screenshot_from_2025-10-10_15-51-25.png
|
 |
| Attachment 6: 2025-10-10_16_07_05_el_dg_sst_01-ccd_01_RAW.png
|
 |
| Attachment 7: EL_SST01_Profiles.png
|
 |
|
1139
|
Fri Oct 17 09:07:03 2025 |
MO VC ND VM | | Shift summary | LI | TL | LE | Linac Commissionning |
|
Shift summary | |
demarrage machine 8H35
9H45 hV on 1215V
Q linac 100pC
Recherche du faisceau dans la TL sans le ring =>pas trouvé
mesure OTR
12:17 Intervention de 3 personnes de Dalkia dans la X hutch (ils disent que c'est a la demande de Kevin)
Apres-midi: optimisation anneau et EL
17:00 arret |
|
Draft
|
Tue Oct 21 12:29:35 2025 |
HG, DN. VM, MJ | | | |
|
| |
11h40 Thomx warm-up
12h35 HV is ON
12h40 HV 1215 V
12h50 Cycling all magnets
13h40 Beam is in the ring without RF
13h50 The FR cavity power has been restarted.
14h14 RF Gun phase 221 dg. Sect. Phase 206 dg. Sect. Att. 2.42 dB Laser Att. 286 Charges: -99 pC, -99 pC, -100 pC Linac steerers H [0.84 -3.18] V [-2.46 3.03]. MRSV light on the streak camera
14h31 The modulator is on standby. Daniele goes to the bunker with Marie to install the horizontal slit for MRSV
14h52 HV is ON
Image MRSV sigX=36.2 sigy=14.8 pixels
Intensite sur la streak reduite ==> On va essayer de deplacer la fente du coup
15h09 The modulator is on standby. Daniele goes to the bunker with Marie.
15h33 HV is ON
15h33 Image MRSV sigX=46.7 sigy=14.8 pixels avec la nouvelle positions de la fente - cf screenshot |
| Attachment 1: mrsv_2_positions_fente.png
|
 |
|
Draft
|
Wed Nov 5 12:50:55 2025 |
Entered by Super Team from 134.158.195.141 on Wed Nov 5 12:50:37 2025 | | | |
|
| |
Matin :
Soucis synchro :
- Nicolas les a redémarré
- kevin est vebu vérifier la synchro du laser, le signal du 500 Mega un peu faible (à vérifer)
- toujours des coups perdus
Soucis Alims :
Dipole --> 250A impossible de forcer 159.3
- currentSetpointPM=159.3
- currentSetpoint=250=Current ...
Ds passé en erreur. Ok L'alim était en local ....
Soucis phase section :
Problem with calc/li_hfi/write_dep.01-mot.01 does not work.
To change section phase li/hfi/dep.01-mot.01 was used
18h08 Unable to get low energy spread on TL sst2. It seems we observed a scattered beam.
18h15 Gave up. Stop ThomX |
| Attachment 1: Screenshot_from_2025-11-05_17-49-33.png
|
 |
| Attachment 2: Screenshot_from_2025-11-05_17-51-14.png
|
 |
| Attachment 3: Screenshot_from_2025-11-05_17-50-44.png
|
 |
|
1162
|
Thu Dec 4 08:59:07 2025 |
Entered by Super Team from 134.158.195.141 on Thu Dec 4 08:58:52 2025 | | Shift summary | LI | TL | Ring |
|
Preparation/check of the 70 MeV WP for X-ray run | |
Goal: preparation and checking the machine operation at 70 MeV and 40 MeV (ideally with X-rays)
8h54 Warming up
RF section 29.20 C -> 28.5 C
9h45 Beam on
Start at 50 MeV and then going to 70 MeV with 70MeV_Xrays_I3I4_20kpA_flatVertorbit_vertSigma_122um__20250821_14_36_08.txt
In this recette the dipoles are at 253.78 A which is 2A lower than nominal current for 70 MeV. The goal is to go to the nominal value.
Phase scans, beam is transported to the ring. Only few turns.
Scan of he RF cavity phase.
scope 192.168.229.22 which used to monitor losses and charge is not accesible as someone else is connected to it from srv 3 with 192.168.229.92. We need control of this scope in the CR.
After also checking it locally, the signals were not set, cable unplugged.
12h30 Problem with SST. Nicolas is checking.
Optimization of the injection. HCOR/VCOR are set to zero. Storage obtained; RF ON freq 500.031690 MHz
Several interlocks shutter laser linac
13h20 Stop for the visit
14h47 beam on
Daniele worked all the afternoon with the students. FPC is changed for 70 MeV.
MRSV does not start; need help for it
Work on the 70 MeV. orbit is corrected. The final tutning should be checked with X rays.
At the end we understood thqt the EL dip is set to 159.3 A. The orbit was recorrected with only the EL dip set to 253.8 A (the difference in the orbits is shown in the scrennshot). The rest of the elements of the EL are should be scaled to 70 Mev (it will not impact the orbit as dipole)
The recetter is saved:
70MeV_ELdip253p8A_20251204_18_10_12.txt
70MeV_with ELat50MeV_20251204_17_10_20.txt
The BLM signals during the shift were moving in time: to be understood, maybe timing problem.
This configuration must be checked with MRSV and/or X-rays to confirm the X-ray flux |
| Attachment 1: Screenshot_from_2025-12-04_16-10-14.png
|
 |
| Attachment 2: Screenshot_from_2025-12-04_17-38-20.png
|
 |
| Attachment 3: Screenshot_from_2025-12-04_18-01-39_WITH_EL.png
|
 |
|
1164
|
Fri Dec 5 14:48:46 2025 |
Marie Julien Hayg Sophie | | Shift summary | LI | TL | LE | Ring |
|
Matching ring-TL - Recherche des bons twiss pour la TL | |
Programme shift : etudes matching anneau-TL - Recherche param twiss TL
Valeurs ideales TL "de Julien" : betaX = 36 betaY = 36 alphaX = -4.5 alphaY = -4.5 ( = figure of merit tres petit)
==================================================================
Mesures param twiss Q1 (quad scan Q1) - charge ~ 100 pC - 50 MeV
**** Soleno = 230
Compresseur = 55000
emitX = 1.8 betaX = 22 alphaX = -7.5
emitY = 1.5 betaY = 7 alphaY = -1.4
Compresseur = 45000
emitX = 1.7 betaX = 14 alphaX = -5.5
emitY = 1.2 betaY = 4 alphaY = -1.1
Compresseur = 65000
emitX = 2.3 betaX = 25 alphaX = -9
emitY = 3.2 betaY = 7 alphaY = -1.6
Compresseur = 95000
emitX = 2.6 betaX = 11 alphaX = -4.
emitY = 3.3 betaY = 9 alphaY = -2.
**** Compresseur = 95000
Soleno = 220
emitX = 7 betaX = 5 alphaX = -2
emitY = 5 betaY = 4 alphaY = -0.5
Soleno = 200
emitX = 13 betaX = 10 alphaX = 0.85
emitY = 10 betaY = 35 alphaY = 0.6
Soleno = 240
emitX = 7.4 betaX = 18 alphaX = -4.3
emitY = 12 betaY = 50 alphaY = -6
SIMU matching : merit = 9
Soleno = 235
emitX = 2.6 betaX = 14 alphaX = -4.
emitY = 5.4 betaY = 21 alphaY = -3.6
Soleno = 238
emitX = 3.8 betaX = 18 alphaX = -4.3
emitY = 7 betaY = 34 alphaY = -5.2
SIMU matching : merit = 24
Soleno = 245
emitX = 8.8 betaX = 30.4 alphaX = -6.5
emitY = 26 betaY = 81.6 alphaY = -8.5
SIMU matching : merit = 10^-25 ==> Q1-Q7 NO backracked sortie linac: -2.02 / 4.76 / -3.176 / 2.0 / 1.62 / -4.085 / 3.98
Q1-Q7 BACKTRACKED -1.88 / 4.74 / -3.28 / 1.99 / 1.69 / -4.03 / 3.85
Essai de stockage : cf screenshot
2 Remarques :
1) 2 figures of merit tres petites ~ 10^-20 qui donnent des valeurs de TL differentes ....
- Valeurs ideales TL "de Julien" : betaX = 36 betaY = 36 alphaX = -4.5 alphaY = -4.5
- Valeurs du jour : betaX = 30.4 betaY = 81.6 alphaX = -6.5 alphaY = -8.5
A suivre - Trouver Bonne figure of merit + minimisation emittance ....
2) Valeurs QUADs "QP3" utilisee dans la simu RING (quads autour de l'IP) :
QP3 SIMU julien : - 6.7 A
QP3 REEL :
c1_qp8 = -6.02
c2_qp8 = -6.03
c1_qp9 = -6.11
c2_qp9 = -6.0
==> ~ 0.7 A de difference - Pour les autres quads : SIMU vs REEL sont proches.
|
| Attachment 1: Screenshot_from_2025-12-05_18-26-56.png
|
 |
|
Draft
|
Thu Dec 18 09:39:38 2025 |
DN, IC, HG, KD, MJ, and Co | | Shift summary | LI | TL | LE | Ring | Diag | Aimants | Laser | Vide | Linac Commissionning | Ring Commissioning |
|
X-ray measurement/characterization campaign | |
The machine was warmed up remotemy
The FPC is ready. The laser is locked.
9h Start HV
9h08 Modulator is put to standby. Access to "repair" shutter X-line
9h20 Restart the beam
9h39 Problem with the camera laser photocathode. It does not start. So; feedback does not work and the generated charge is drifting.
9h45 Another access to fix/restart the camera
10h Camera is working. Chillers gun and RF structure are ON also now;
10h30 Beam in the ring
Miss triggering issues, see ICT data for example.
13h : Kevin recabled the delay box on the "right" cable to avoid bad 50 Hz signal.

|
| Attachment 1: Q_missed_2025-12-18_13-50-19.png
|
 |
|
1174
|
Mon Jan 5 10:35:58 2026 |
MJ | | Shift summary | LI | TL | LE | Ring |
|
shift twiss Q1 versus soleno | |
Modulateur en chauffe
Alarme rendant impossible clim casemate . Maher envoie un mail a urgencevc
Check Sf6 : 2 bar ==> Appel JN ==> ajout sf6 2.5 bar
Programme : quad scan qp1 (et qp7) soleno de 200 a 260 avec chaque fois espread minimum
soleno 230 betax 26 alphax -5 betay 18 alphay -3
soleno 240 33 -5.6 51 -8
soleno 260 62 -8
Code reconstruction crash pour soleno 250 X et Y et pour soleno 260 en X
A suivre demain |
|
Draft
|
Mon Feb 23 09:43:36 2026 |
IC | | | |
|
Ring studies | |
9h40: mise en chauffe (chillers/frigo, modulateur, cyclage)
HV ON
The ICT signal (GUN) is frozen. Need help to restart it. Use the BPM SpSum instead.
13h Beam in the ring.
RF gun phase 31 dg., Sect. att. 2.47 dB, Sect. phase 237 dg., charges (ICT): about -120 pC
17h16 ThomX stopped
|
|
Draft
|
Thu Feb 26 08:18:00 2026 |
IC, VM | | | |
|
| |
08h15: mise en chauffe en remote (frigo/chillers, laser, modulateur, cyclage)
08h15: mise en chauffe en remote (frigo/chillers, laser, modulateur, cyclage)
09h19 HV is on
RF gun phase 78 dg. Sect. Att. 2.56 dB, sect. phase 219 dg. RF 50 kV. Linac steerers: H [-0.36 -2.65], V [-2.49 3.24].
Scan ring RF frequency.
16h40 ThomX stopped |