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  Toutes les notes concernant les Commissionning de ThomX, Page 62 of 63  Not logged in ThomX    logo
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  Draft   Tue Jan 18 11:57:15 2022 Entered by Hayg Guler from 134.158.91.29 on Tue Jan 18 11:44:00 2022    , entered from 134.158.91.29 

rrrrr

Attachment 1: image_SST2021-11-23_19_35_07_tl_dg_sst_01-ccd_01_RAW_2.png
image_SST2021-11-23_19_35_07_tl_dg_sst_01-ccd_01_RAW_2.png
  Draft   Thu Sep 22 10:08:30 2022 Entered by Hayg Guler from 134.158.91.29 on Thu Sep 22 10:08:17 2022Fixed   , entered from 134.158.91.29 
  Draft   Wed Oct 5 19:02:28 2022 VK, VM, HG,IC, AL      

Shift started with machine receipy from Monday .

Scan parameters, injection to find orbit in the ring. Testing alghrithms for orbit correction.

15.55 Energy , charge not stable, asked Hayg to stabilize .

Ring Dipoles up 160.4A

Problem with steerers : RIC2 STR02-V01 and RIC1/ STR.05-H01 NEED TO BE REPAIRED

Fixed orbit correction gui. Units in libera are [nm] should be in [mm] to correctly scale currents.

 

 

 

 

 

 

 

 

 

  Draft   Wed Mar 8 11:45:46 2023 Entered by Marie Jacquet from 134.158.205.47 on Wed Mar 8 11:45:31 2023    I-dipole vs X_TLBPM02 - Mesures/Simul (suite elog 28 fev) 

Tue Feb 28 08:48:29 2023

8H50-demarrage chiller et chauffage klystron

   * Laser réaligné avec phase (foc max) et (foc max -3deg).

    - Comparaisson avant (Xlaser = 3.97mm/Ylaser = 1.88mm) et après (Xlaser = 4.95mm/Ylaser = 2.35mm) en P.J avec les screenshots.

Attention, la phase de foc max avait drifté de 3deg pendant l'alignement, les images prise après sont avec background substraction.

   - Position LI/BPM.01 sans steerer : X = 1.2mm, Y = 1.8mm

   - Solenoïde 234A (cf. e-log du 27/02/2023) Phase Canon-Laser (foc max - 50deg). Mesure d'énergie = 5.18MeV, mesure position LI/BMP.01 : X = 1.7mm, Y = 1.1mm (revoir alignement solénoïde)

  * Passage section (1.8dB, phase 110deg)

   - Les BPM saturent (cf. screenshot) ==> on change le power (-57 à -10)

   - Steerer à revoir à cause du point laser procedure pour réalignement  (utilisation script KD de minimisation du déplacement en fonction du PQ) :

      1) LI/STR.01 sur QP.01

      2) TL/STR.01 sur QP.03

      3) rafinement avec valeur de QP.01 à QP.03 et atténuation section OK

==> cf. recette générale : recipe_recipe_LI_TL_RI_good_20230228_16_51_45.txt

   - Position BPM une fois aligné : LI/BPM.01 : X = 0mm, Y = 1.7mm, TL/BPM.01 : X = 0.2mm, Y = -0.2mm

   - Mesure énergie sortie Linac (soléno à 200A) : Calib (28.7/28.6 um/pixel) on obtient 50.4 MeV

  * Passage TL :

   - TL/BPM.02 saturé également cf. image, la puissance est réajusté (-58 à -10)

   - Alignement Horizontal sans QUAD. Pas de désalignement horizontal lorsque TL/BPM.02 X = 0mm TL/BPM.03 et TL/BPM.04 ~ 0mm ==> les paire de dipôles font bien à 90°

   - Alignement des QUAD :

    QP.04 : Ajustement du dipôle pour être sur l'axe mag horizontal ==> dipôle 159.3A à ~ 159.1A, aligné avec QP.01 à QP.03 verticalement

    QP.05 : Ajustement avec QP.04 aligné (DP = 159.1A), TL/STR.02 : H = -8A et V = -4.3A

    QP.06 : TL/STR.02 : H = -3/-5A et V = -4.7A (difficile en horizontal pour cause de saute en énergie)

  * Passage LE (on s'aligne dans QP.04 et QP.05, cf. recette générale) ==> utilisation des valeurs de QP.01 à QP.07 de la recette de Christelle du 27/02/2023 :

     - On rentre dans la LE immédiatement avec EL/DPE = -7.4A et EL/DP = 159.3A ==> alignement pour utiliser EL/DPE = -7.72A (l'alignement se fait sur EL/BPM.01 afin que EL/DPE ne produise plus de shift vertical avec le changement de courant)

     - faisceau intense et visible avec EL/SST.01 à 1s et gain 1dB. ==> caméra EL/SST.01 mal triguée il faut passer à 0.1s pour voir le faisceau

     - Valeur des EL/QP ajusté la main pour avoir un faisceau bien focalisé (cf. photo) ==> cf. recette générale du jour

     - Fin du shift, machine plutôt stable (cf. screenshot BPM)

==> energie finale 49.1MeV (soleno à 200A), et au dipôle 159.3A ==> TL/BPM.02 : X = 0mm ==> pas de shift en énergie

==> phase shift d'environ 10 deg  (cf. courbe).

** Remarques Générales **

- Variation importante de la puissance en sortie Klystron en fonction de la phase caon/Laser. ==> Vincent est en cours d'investigation (surment problème de saturation du PA)

- "Grande" variation de puissance Klystron quelques mm sur TL/BPM.02 ==> correction avec l'atténuation du klystron de quelque 0.01dB (1.8dB -> 1.98dB). En fin de shift c'était beaucoup plus stable plus de reprise de l'attenuation (1.98dB)

- Pas de point de fonctionnement stable plus qu'un autre en fonction (atténuateur et HV modulateur)

==> cf différentes images du jour.

- Idipole = 158.5A, TL/BPM.02 : X = 5mm

- Idipole = 159A, TL/BPM.02 : X = 1.8mm

- Idipole = 159.8A, TL/BPM.02 : X = -4mm

 

  Draft   Tue Apr 4 15:21:51 2023      , entered from 134.158.195.141 
<p>12h10: Mise en chauffe modulateur, laser et chiller + PA</p>

<p>14h30: mesure phase relative sortie pilote/ sortie PA&nbsp; Vrms pilote, Vrms PA&nbsp; &nbsp;<strong>Sans HT dans le Klystron</strong></p>

<p>s&#39;il vous plait,&nbsp; Indiquez l&#39;heure du passage&nbsp;&nbsp;sous haute&nbsp; tension (pour voir si cela change quelque chose &agrave; aux mesures RF) MERCI</p>

<p>15h03 modulateur trig</p>

<p>Wave catchers arretes soft - Vincent les a redemarre (c&#39;est la 2eme fois) Est-vr</p>

<p>&nbsp;</p>

<p>&nbsp;</p>
  Draft   Fri Sep 27 10:44:50 2024 MJ VC  Linac Commissionning   
  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

 

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  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
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

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  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

  Draft   Mon Mar 9 12:55:30 2026 Entered by Super Team from 127.0.0.1 on Mon Mar 9 12:55:16 2026    Restart after strange last shift  

12h55 : Vacuum level OK after TRIG ON
13h00 : Laser ON : no spot on screen put last motor positions (2266 && 4158) --> No spot on screen :(
13h05 : Gun activities incresed (Vac > 1e-7 && reflected power)
13h12 : Laser put OFF

  Draft   Fri Mar 13 08:33:25 2026 Entered by Super Team from 127.0.0.1 on Fri Mar 13 08:33:09 2026      

08h32 Warm-up ThomX: Modulator, Laser, Fridge

08h37 Chillers were started, cycling all magnets

09h48 HV is ON

10h42 There was a problem with "Camera Laser". Restarted  li/op/las.02 server by killing it

12h26 Beam is in the ring, RF 100 kV, phase -42 dg. Laser phase 163 dg. Sect att. 2.57 dB, Sect. phase 221 dg. Laser att. 324, Charge oscillating around -120 pC. Feedback laser PID coefficients were changed: P=0.5,I=0.02, D=0.05 to get more stable laser spot position (Old: P=0.7,I=0.01, D=0.1 ).

18h27 ThomX was stopped

  Draft   Thu Mar 19 07:46:50 2026 Entered by Super Team from 127.0.0.1 on Thu Mar 19 07:46:39 2026    , entered from 127.0.0.1 

7h45: mise en chauffe en remote (frigo/chillers, laser, modulateur, cyclage)

8h46 The photocathode laser image on the camera is very weak, I can't initiate feedback. Help needed.

08h56 HV is on

During another attempt to launch laser position feedback, the diaphragm completely disappeared outside the screen (to the right).

OK it was fixed

09h57 beam is in the ring w/o RF, recipe_recipe_LI_TL_RI_good_20260318_16_17_14.txt loaded. Laser phase 5 dg. (to low), sect. att. 0.148 dB, sect. phase 258 dg., Charges around -100 pC,

10h06 RF 100 kV, phase -45 dg.

10h30 interlocks even at sect. att. 0244 dB

11h15 Sect. temp. set to 29.2C  (Clarinette, Consigne 28.6 C)

11h57 laser phase jumped to 18 dg.

12h25 For the 70 MeV settings (DP current 255.8 A) the linac energy is too low, so we left 253.8 A ==> 69.7 MeV.


18h10 ThomX was stopped

  Draft   Wed Apr 8 07:29:51 2026 7h50 : mise en chauffe en remote (frigo/chillers, modulateur, laser, cyclage)    , entered from 127.0.0.1 

7h30 : mise en chauffe en remote (frigo/chillers, modulateur, laser, cyclage)

8h30 HV is ON

recipe_recipe_LI_TL_RI_all_20260402_14_37_41.txt loaded

10h16 Energy = 50 MeV, Laser Phase 72 dg., Sect. Phase 220 dg., Sect. Att. 2.51 dB, I_Gun -116.9607 pC, I_Linac -140.3135 pC, I_TL -131.2199 pC RF_Ampl. 148.7161 kV, RF_Phase -36.5 dg.
10h18 Energy = 50 MeV, Laser Phase 72 dg., Sect. Phase 220 dg., Sect. Att. 2.51 dB, I_Gun -98.3498 pC, I_Linac -120.5804 pC, I_TL -111.3074 pC RF_Ampl. 148.7161 kV, RF_Phase -36.5 dg.

11h19 Energy = 50 MeV, Laser Phase 75 dg., Sect. Phase 219 dg., Sect. Att. 2.62 dB, I_Gun -92.4726 pC, I_Linac -115.7833 pC, I_TL -106.6548 pC RF_Ampl. 148.7161 kV, RF_Phase -36.5 dg.
13h55 Energy = 50 MeV, Laser Phase 79 dg., Sect. Phase 224 dg., Sect. Att. 2.58 dB, I_Gun -94.4872 pC, I_Linac -117.7063 pC, I_TL -107.6493 pC RF_Ampl. 148.7161 kV, RF_Phase -36.5 dg.
 

 

  Draft   Thu Apr 16 07:32:25 2026 Entered by Super Team from 127.0.0.1 on Thu Apr 16 07:32:14 2026    , entered from 127.0.0.1 

7h30 : mise en chauffe en remote (frigo/chillers, modulateur, laser, cyclage)

9h00 HV is ON

10h33 Energy = 50 MeV, Laser Phase 77 dg., Sect. Phase 217 dg., Sect. Att. 2.546 dB, I_Gun -98.9021 pC, I_Linac -131.1291 pC, I_TL -120.2702 pC RF_Ampl. 148.7161 kV, RF_Phase -36.5 dg.
12h53 Energy = 50 MeV, Laser Phase 78 dg., Sect. Phase 218 dg., Sect. Att. 2.577 dB, I_Gun -97.6327 pC, I_Linac -124.7496 pC, I_TL -111.3515 pC RF_Ampl. 148.7161 kV, RF_Phase -35 dg. receipt 10 Apr last, X flux 35e3 pA, Las. Att. 276
14h56 Energy = 50 MeV, Laser Phase 75 dg., Sect. Phase 215 dg., Sect. Att. 2.53 dB, I_Gun -94.9526 pC, I_Linac -122.0817 pC, I_TL -108.2541 pC RF_Ampl. 148.7161 kV, RF_Phase -35 dg. sometimes it was 50e3 pA, Las. Att. 276

19h08 Energy = 50 MeV, Laser Phase 75 dg., Sect. Phase 212 dg., Sect. Att. 2.551 dB, I_Gun -350.6393 pC, I_Linac -372.038 pC, I_TL -364.2529 pC RF_Ampl. 148.7161 kV, RF_Phase -35 dg. Las.  Att. 375

19h10 Energy = 50 MeV, Laser Phase 75 dg., Sect. Phase 212 dg., Sect. Att. 2.551 dB, I_Gun -368.8974 pC, I_Linac -390.9133 pC, I_TL -382.9227 pC RF_Ampl. 148.7161 kV, RF_Phase -35 dg. Las.  Att. 415

20h44 Energy = 50 MeV, Laser Phase 74 dg., Sect. Phase 215 dg., Sect. Att. 2.605 dB, I_Gun -87.9133 pC, I_Linac -113.5951 pC, I_TL -101.2012 pC RF_Ampl. 148.7161 kV, RF_Phase -36 dg. Las.  Att. 280

20h52 Thomx was stopped

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  Draft   Wed Apr 22 10:26:28 2026 IC,VM      

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.
 

  Draft   Thu Apr 23 09:06:22 2026 IC, VM      

9h00 : mise en chauffe en remote (frigo/chillers, laser, modulateur, cyclage)

  Draft   Fri Apr 24 08:05:11 2026 Entered by Super Team from 127.0.0.1 on Fri Apr 24 08:05:02 2026    , entered from 127.0.0.1 

8h00 : mise en chauffe en remote (frigo/chillers, laser, modulateur, cyclage)

ELOG V3.1.4-395e101