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Date |
Author |
Status |
Type |
Category |
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Draft
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Tue Apr 21 07:36:54 2026 |
KD, VM | Under Process | Shift summary | Linac Commissionning | Ring Commissioning |
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shift du 21 avril 2026 | | 7h30 : mise en chauffe en remote (frigo/chillers, laser, modulateur, cyclage) ==> dipôles non cyclé (en défaut) ==> défaut acquité et cyclage fait.
8h20 : intervention sur le laser PC. Le shutter de la salle laser était resté bloqué. Le faisceau semble revenu à la normale.
image laser sauvées dans le dossier du jour. (puissance laser PC en entrée de ligne de transport 105uJ).
==> impossible d'ajouter des images sur le e-log (erreur 413 entity too large).
09h39 HV is ON
10h02 Energy = 50 MeV, Laser Phase 61 dg., Sect. Phase 218 dg., Sect. Att. 2.355 dB, I_Gun -99.4692 pC, I_Linac -102.9732 pC, I_TL -113.2398 pC RF_Ampl. 0 kV, RF_Phase -36 dg.
Can not start the RF cavity because of the intetlock.
10h45 Scan phase charge for the RF gun att. [0 2 3 6] dB
12h25 Energy = 50 MeV, Laser Phase 53 dg., Sect. Phase 217 dg., Sect. Att. 2.456 dB, I_Gun -100.0525 pC, I_Linac -124.744 pC, I_TL -113.9338 pC RF_Ampl. 97.6562 kV, RF_Phase -45 dg.
16h16 Energy = 50 MeV, Laser Phase 45 dg., Sect. Phase 221 dg., Sect. Att. 2.42 dB, I_Gun -101.3927 pC, I_Linac -127.0728 pC, I_TL -115.2858 pC RF_Ampl. 148.7161 kV, RF_Phase -46.5 dg.
At around 5:30 p.m., the modulator and magnets stopped, likely due to cooling water problems. message was sent to Dalkia 5:45. |
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Draft
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Wed Apr 22 10:26:28 2026 |
IC,VM | | | |
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| | Dalkia solved the problem with vooling circuit in the morning
10h15 mise en chauffe (frigo/chillers, modulateur, laser, cyclage)
11h16 HV is ON
11h57 Energy = 50 MeV, Laser Phase 54 dg., Sect. Phase 215 dg., Sect. Att. 2.34 dB, I_Gun -90.3427 pC, I_Linac -115.8595 pC, I_TL -104.0088 pC RF_Ampl. 148.7161 kV, RF_Phase -45 dg.
15h01 Energy = 50 MeV, Laser Phase 35 dg., Sect. Phase 218 dg., Sect. Att. 2.456 dB, I_Gun -101.8359 pC, I_Linac -120.7055 pC, I_TL -114.6878 pC RF_Ampl. 148.7161 kV, RF_Phase -49.5 dg.
18h04 Energy = 50 MeV, Laser Phase 27 dg., Sect. Phase 216 dg., Sect. Att. 2.421 dB, I_Gun -98.616 pC, I_Linac -120.8228 pC, I_TL -14.2993 pC RF_Ampl. 148.7161 kV, RF_Phase -35 dg.
20h13 Energy = 50 MeV, Laser Phase 28 dg., Sect. Phase 216 dg., Sect. Att. 2.481 dB, I_Gun -110.7257 pC, I_Linac -129.583 pC, I_TL -123.6972 pC RF_Ampl. 148.7161 kV, RF_Phase -33.5 dg.
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Draft
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Thu Apr 23 09:06:22 2026 |
IC, VM | | | |
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| | 9h00 : mise en chauffe en remote (frigo/chillers, laser, modulateur, cyclage) |
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Draft
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Fri Apr 24 08:05:11 2026 |
Entered by Super Team from 127.0.0.1 on Fri Apr 24 08:05:02 2026 | | | |
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, entered from 127.0.0.1 | | 8h00 : mise en chauffe en remote (frigo/chillers, laser, modulateur, cyclage) |
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1239
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Mon May 11 09:33:17 2026 |
Vincent | Under Process | Linac | LI | TL |
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Manip Gplast | | 9h30 test radioprotection OK (mesure en dessous du bruit de fond)
13h30 fenetre installée pompage en cours
14h fin de l'intervention
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1240
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Tue May 12 08:42:45 2026 |
Entered by Super Team from 127.0.0.1 on Tue May 12 08:42:31 2026 | Under Process | Other | LI |
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manip Gplast | | Demarrage machine 8h40
pB reflechi canon... temp consigne 27.7C
10h50 redemarrage chiller gun ...
Attenuateur laser 305mm
pB chiller section redemarrage.
Att section 2.24dB phase 232° dipole 158.6A
camera TLSST03 déconnectée du réseau
Timing SST TL 3 retard -6.66µs au lieu de -16µ
réseau très lent
arret machine 17h
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| Attachment 1: Screenshot_from_2026-05-12_10-33-26.png
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1241
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Wed May 13 08:35:16 2026 |
Entered by Super Team from 127.0.0.1 on Wed May 13 08:35:01 2026 | Under Process | Other | LI |
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manip Gplast | | demarrage machine 8h30
faisceau ok vers 10H
14h mesure 50 MeV
16h : passage à 8MeV |
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Draft
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Wed Jun 3 08:41:41 2026 |
IC, HG, JNC | | Shift summary | |
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Restart of the accelerator | | 02/06/2026
~15h30 Starting all system
16h Start up of the modulator, laser, magnets
Problem with the shutter, it is in the orange state. |
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Draft
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Wed Jun 3 08:54:55 2026 |
IC, VM | Under Process | Urgent | LI | RF Anneau |
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Restart of the accelerator | | 08h45 Start-up modulator, laser, magnets
09h38 Shutter Laser Linac is yellow. Tuning off the gun operation key does not change it to the red. Need help.
09h55 HV is on
09h56 HV is off. The fridge was started then chillers.
10h20 The laser shutter is OK. HV is on
recipe_recipe_LI_TL_RI_all_20260422_18_34_34.txt loaded
Linac steerers were adjusted.
11h35 Energy = 50 MeV, Laser Phase 9 dg., Sect. Phase 223 dg., Sect. Att. 2.19 dB, I_Gun -48.3388 pC, I_Linac -54.8343 pC, I_TL -53.5573 pC RF_Ampl. 0 kV, RF_Phase -30.5 dg.
Beam is in the ring W/O RF
11h45 RF is on
11h54 Energy = 50 MeV, Laser Phase 9 dg., Sect. Phase 223 dg., Sect. Att. 2.12 dB, I_Gun -49.1448 pC, I_Linac -55.6953 pC, I_TL -54.5153 pC RF_Ampl. 49.3668 kV, RF_Phase 35.5 dg.
It looks like RF cavity tuning does not work. Help is needed.
12h07 Mesure d'energie en sortie canon sur LISST1 en fonction du courant du steerer LI/PS/STR.01-H.01
'Energy=4.83MeV'
Several scans of the laser attenuator 200 to 430 at the Gun attenuator 0, 1, 2, 3 dB but at the same phase.
13h22 Standby
13h32 HV is on
15h17 Thomx was stopped
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| Attachment 1: GunCharge_vs_LaserAtt.png
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| Attachment 2: GunDarkCurrent_vs_Att.png
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Draft
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Tue Jun 9 10:13:24 2026 |
Entered by Super Team from 127.0.0.1 on Tue Jun 9 10:13:08 2026 | | | |
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| | 10h02 Start-up modulator, laser, fridge, chillers
The SF6 pressure is low. Magnet power supplies filed to start.
11h17 Stop ThomX
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1245
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Fri Jun 12 13:08:13 2026 |
Kevin D. | Reference Solution | Info | Laser | Opt | Linac Commissionning |
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Laser PC status | | mise à jours du post : https://elog.lal.in2p3.fr/THOMX/Commissionning/1188
** Laser PC ***
- Sortie Laser: 120 uJ
- Injectée ligne transport: 110 uJ
- Sortie ligne transport: faisceau trop gros pour une mesure correct
- Sortie Iris (ouverture max): 80 uJ
- Sortie iris (1.3mm): 28uJ
- injectée canon (iris 1.3 mm, 420 pas) : 22 uJ
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