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  810   Thu Oct 26 09:02:33 2023 VC,SC, ND, IC, VK, CB, V LinacLI | TL | Ring Linac 

8h30 Mise en chauffe

Pas d'internet sur client1 et client2

9:45 Pb Database Tanngo.

10:10 Ticket 13100 mis au CC

10:16 Le CC constate le probleme.

10:20 Defaut centrale SSI intermittent

10h57 Defaut tango camera corrigé partiellement, permettant de faire du faisceau aujourd'hui, mais investigation plus poussée à faire

10h58 Re-démarrage des caméras

11h12 phase foc max = 215° phase utilisée 165°

12h Chargement recette de l'anneau, remise en place des solenoides comme avant changement de la veille, remise en place du laser et réglage anneau et stockage à 500.25 MHz

13h30 remise en route dephasage cavité RF, remise en place de la valeur de la phase

14h58 Stockage dans l'anneau apres mesures linac

Mise en place des réglages linac d'hier pour tests sur injection anneau

réajustement des valeurs de steerers TL pour optimisation de l'injection.

prises des images dans ces conditions et données anneau

Préparation de 180A en modifiant QP2 et 3 uniquement. A tester sur l'anneau

Quad scan à 180A et à 220A

Arret

  1149   Wed Nov 12 10:29:49 2025 Entered by Super Team from 134.158.76.9 on Wed Nov 12 10:29:34 2025Under ProcessShift summaryLI | TL | Ring   

15h09 Cycling all magnets

15h12 HV is ON

15h15 The modulator was set to standby

15h34 HV is ON

Tests on Ring + Streak camera to measure the bunch length. Triggering was not perfect (many jumps, even with help from Daniele)

Laser charge is now lowered (max around 300 pC) , should be realign soon.

18:40 stop

  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 summaryLI | 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
Screenshot_from_2025-12-04_16-10-14.png
Attachment 2: Screenshot_from_2025-12-04_17-38-20.png
Screenshot_from_2025-12-04_17-38-20.png
Attachment 3: Screenshot_from_2025-12-04_18-01-39_WITH_EL.png
Screenshot_from_2025-12-04_18-01-39_WITH_EL.png
  1000   Tue Jan 21 08:08:43 2025 KDUnder ProcessShift summaryLI | TL | Linac Commissionning | Ring Commissioning shift du 21 janvier 2025 

8h10 : mise en chauffe à distance (modulateur, laser, frigo/chiller)

  741   Tue Apr 25 14:19:49 2023 CB Shift summaryLI | TL | Linac Commissionning run du 20 avril 2023 icon13.gif 

Suite du run du 19 avril : objectif mesure des twiss pour plusieurs valeur de solénoides à partir de 180A

NB : Problématique de dérive des paramètres rencontrés entre le temps de réglage, et le temps d'acquisition --> mesures non traitables

NB2 : dimensions sur TLSST1 en fonction du solenoide différent de l'autre point de fonctionnement (lien évident entre l'alignement de la machine et les twiss ...)

Alignement quad par Kevin

scan sur TLSST1 en fonction du solénoide avec le script matlab

- 180A 104°/2.03dB, image prise sur TLSST2 QP123 [-2 +3.9 -1.1]A, Idip 159.3A

quad scan QP3 à 180A [-1.81 2.23], puis [-1.72  2.15]A, les conditions ont bougées sur TLSST2 entre deux mesures...

- 200A, 4 quad scan QP3 [ -2.35 2 D] A ; [-2,95 2,35 D] A ; [4.1 -3,9 D] A ; quad scan QP1 : [ D 3,76 -3,86] A

- 220A [D 3,18 -3,58]A

phase réajustée à 93degrés pour Idip =157.9 A, TLSST2 enregistrée [1,37 3,18 -3,58]

Difficile de savoir ce qu'on fait avec tant de paramètres qui bougent

 

 

 

Attachment 1: coil2scan_11h46.png
coil2scan_11h46.png
Attachment 2: 20230420.pptx
  1009   Wed Feb 12 08:00:31 2025 KD MJUnder ProcessShift summaryLI | TL | Linac Commissionning shift du 12 février 2025 - Alignements 

8h: mise en chauffe à distance (modulateur, frigo, chiller, laser)

9h30: laser semble pas aligné dans l'iris avec une forme assez étrange (trou au centre) ==> énergie sortie laser PC 270uJ

9h35: la forme du laser sur la photocathode virtuelle semble etre revenu avec l'alignement M5.

10h: démarrage des alignements Quad et Photocathode.

Nouveau point Cathode : [H,V] = [4.46, 3.46]

--> Réglage 50MeV, min dispersion

 

** Mesure alignement vertical QP1-3, QP4-5 :

QP1-3 : TL/BPM.01 [x,y] = [-0.09,0]mm ; TL/YAG.01 [x,y] = [395, 265] pixels

QP4-5 : TL/BPM.01 [x,y] = [-0.1, 0.22]mm ; TL/YAG.01 [x,y] = [395, 263] pixels

On trouve faisceau dans QP4-5 "descendant" par rapport à QP1-3 (mauvais sens par rapport à la section) ==> impossible d'aligner QP1-3 sur la section sans désaligner QP4-5.

Delta entre axe QP1-3 et axes QP4-5 = 0.2 mrad (vertical) 

** Mesure section alignee (strLi du elog 1002)

Axe section : TL/BPM.01 [x,y] = [-2.6,3.7]mm ; TL/YAG.01 [x,y] = [250, 67] pixels

Delta entre axe QP1-3 et axes section = 1.2mrad (vertical) ==> non cohérent avec les mesures précedentes (elog 1002)
     ==> elog 1002 du 22 janvier : il y a certainement eu une erreur de lecture de mesure du bpmTL1 pour l'axe section
            
Les autres mesures sont coherentes entre aujourd'hui et le 22 janvier (bpmLI, YagTL)

Plusieurs prises de mesures axes SECTION et Q1Q3 avec les valeurs de steerers suivantes :
    - align section : cf. elog 1002 du 22 janvier
    - align Q1-Q3   strLI H1 = 0.83
                                   V1 = -3.26
                                   H2 = -2.89
                                   V2 = 3.50

==> Cf. reconstruction en screenshot 
         
rouge : axe section
         bleu : axe Q1-Q3 avec Q1, Q2 et Q3 OFF 
         vert : axe Q1-Q3 avec Q1, Q2 et Q3 ON

==> quand on reconstruit les axes verticaux QP1-3, QP4-5 et section on trouve les defauts suivant :

- section - QP1-3 : 1mrad (sans calib BPM), 0.5mrad (avec calib BPM : X = valeurBPM / 0.8)

- QP4-5 - QP1-3 : - 0.2mrad

==> les désalignement verticaux semble très faible (<1mrad), mais il y a un gros "shift" de l'axe section.

 

 

 

 

 

Attachment 1: 2025-02-12-Shift.png
2025-02-12-Shift.png
Attachment 2: axes_BPM_calib.jpg
axes_BPM_calib.jpg
Attachment 3: axes_BPM_nocalib.jpg
axes_BPM_nocalib.jpg
  1148   Mon Nov 10 16:15:53 2025 KD, M2 GIFixedShift summaryLI | TL | Linac Commissionning shift du 10 novembre 2025 

8h: mise en chauffe en remote (modulateur, laser, frigo/chiller)

10h: Démarrage machine

 

*** Programme TP ***

- mesure charge/phase et Energie/phase du canon

- Mesure beam parameters sortie section + energy et energy spread

 

  687   Mon Feb 20 08:30:57 2023 KD, MJ, HGUnder ProcessShift summaryLI | TL | LE | Vide | Linac Commissionning shift du 20 février 2023 

8h30 : Mise en chauffe de la machine (frigo, chiller, laser, modulateur)

fosse vidée + circuit d'eau re-remplis

problème jauge vide : pas de relecture (IHM canon et IHM vide)

14h : début du shift

phase ch max 287°  valeurs BPM avant solénoid : xbpm=1mm, ybpm=0.7mm, charge max : 125pC

-50 de phase pour energie max  (237°) isol 220A, Position BPM LI :  xbpm=1.7mm ybpm=1mm

Mesure énergie avec calibration (K. Dupraz) écran du jour 4.6MeV

*** Passage section Solénoide 190A, atténuateur 1.48dB, phase section 110° :

- Alignement sur QP1 et QP3 : LI/STR1-H = -1.22A, LI/STR1-V = 0.47A, TL/STR1-H = -6.4A, TL/STR1-V = 0A

- Mesure énergie avec calibration (K. Dupraz) écran du jour 50.6MeV

- Quand tous les QP sont à 0A mesure Position TL/BPM01 : xbpm = -0.3mm, ybpm = -0.1mm (cf. screenshot)

- Quand QP1 = -0.9A, QP2 = +4.2A, QP3 = -3.7A (cf. recette du vendredi 20230217) mesure position TL/BPM01 : xbpm = -0.3mm, ybpm = -0.15mm (cf. screenshot + photo)

*** Passage dans la TL, TL/DP 159.3A, attenuation section 1.48dB, phase section dispersion min 107° :

- ralignement axe sur QP1 QP3 à 107° : LI/STR1-H = -1.17A, LI/STR1-V = 0.42A, TL/STR1-H = -5.2A, TL/STR1-V = 0A

- Solénoide à 223A (cf. shift vendredi 17 février) :

- QP4 est déjà aligné en vertical (position TL/BPM02, xbpm = 2mm, ybpm = 0.6mm)

- Alignement moyen QP5 à QP7 avec les courants de QP4 à QP7 du shift de vendredi 17 février, TL/STR2-V = -3A, TL/STR2-H = 0A

*** reprise de l'énergie section (1.50dB) pour centré sur TL/BPM02 ==> Ok pour injection (cf. screenshot)

==> recette sauvegardé sous : recipe_recipe_TL_good_20230220_17_07_34.txt

En fin de shift reprise de l'atténuation section pour garder à 0bpm le faisceau (1.48dB)

***** Le faisceau a sauté tout le temps du shift (cf Screenshot_BPMs_Trend_from_2023-02-20_18-14-59.png) ==> Des Mesures BPMTL2 et PIC redpyt ont ete faites. 

- A mettre en forme pour voir si ya une correlation.

- Memes mesures a faire avec oscillo au lieu du redpy 

Attachment 1: quad1_3_zero.png
quad1_3_zero.png
Attachment 2: recette_20230217_quad1_3.png
recette_20230217_quad1_3.png
Attachment 3: 2023-02-20_15_29_20_tl_dg_sst_01-ccd_01_RAW.png
2023-02-20_15_29_20_tl_dg_sst_01-ccd_01_RAW.png
Attachment 4: injection_RING_recette_20230220_17_07_34.png
injection_RING_recette_20230220_17_07_34.png
Attachment 5: Screenshot_BPMs_Trend_from_2023-02-20_18-14-59.png
Screenshot_BPMs_Trend_from_2023-02-20_18-14-59.png
  Draft   Mon Feb 20 10:16:18 2023 NDUnder ProcessShift summaryLI | TL | LE | Vide | Linac Commissionning RE: shift du 20 février 2023 

Healthcheck signal effectivement un probleme sur toute les vannes...  Et les atkpanels signalent un problème de communi

KD wrote:

8h30 : Mise en chauffe de la machine (frigo, chiller, laser, modulateur)

fosse vidée + circuit d'eau re-remplis

problème jauge vide : pas de relecture (IHM canon et IHM vide)

 

 

Attachment 1: Capture_d’eÌcran_2023-02-20_aÌ€_10.15.37.png
Capture_d’eÌcran_2023-02-20_aÌ€_10.15.37.png
  689   Mon Feb 20 10:19:56 2023 NDUnder ProcessShift summaryLI | TL | LE | Vide | Linac Commissionning RE: shift du 20 février 2023 

Healthcheck signal effectivement un probleme sur toute les vannes...  Et les atkpanels signalent un problème de communication... Est-ce que l'expert correspondant a été prévenu?

 

KD wrote:

8h30 : Mise en chauffe de la machine (frigo, chiller, laser, modulateur)

fosse vidée + circuit d'eau re-remplis

problème jauge vide : pas de relecture (IHM canon et IHM vide)

 

 

Attachment 1: pb_vide_hc.png
pb_vide_hc.png
Attachment 2: pb_vide_atk.png
pb_vide_atk.png
  Draft   Thu Nov 13 08:00:59 2025 KD MJ VM HGFixedShift summaryLI | TL | LE | Ring | Opt | Linac Commissionning | Ring Commissioning shift du 13 novembre 2025 - spectres a differentes valeurs de bpmTL2_X 

Apres que Kevin a regle tous les problemes synchro signal bpm etc etc etc

L'interface SST ne fonctionne pas - URGENT  ==> probleme resolu 

Libera 2 et 4 reboote une 2eme fois ...

Faisceau dans l'anneau

15h15 toujours impossible de locker la cavite FP, pour une raison inconnue ==>  Shift reporte

Several manual BBA steps were performed in the Hor. plane for Ri-C1/QP01 to find the offset change in Ri-C1/BPM01.

16h46 Stop ThomX

 

  840   Fri Feb 2 08:16:50 2024 Entered by Super Team from 134.158.195.141 on Fri Feb 2 08:16:31 2024Under ProcessShift summaryLI | TL | LE | Ring | Linac Commissionning | Ring Commissioning Shift du 2 février 2024 

La clé PA est resté enclenchée hier. Il faut penser à la tourner avant de partir (demande de Maher)

8h15 : Mise en chauffe machine (aimants, chillers, laser, modulateur).

Pas de mesure de charge (WAC, délai ?)

 

Recherche de la cause de la perte de puissance

** Klystron 1090 ==> 2MW en Pi Load

Initial : TL/BPM.02 à 0 (Dipôle 160.8A) ==> 1.27dB

On test les sources de pertes de puissance :

* Changement frequence RF (-500Hz)

pas de changement

* Changement temperature section ( consigne 29.5°C ==> 29.2°C)

TL/BPM.02 à 0 ==> 1.39dB

On continue pour trouver l'optimum

optimum trouvé autour de 27.0°C en consigne.

TL/BPM.02 à 0 ==> 1.73dB

 

** Essaie de rentrer dans l'anneau. Impossible de faire un tour. Reprise du septum, on gagne 2 BPM mais les deux dernier ne voit pas de faisceau.

==> problème de délai des EP ?

Hier modification du retard du laser PC pour vérifier que l'on était bien dans l'impulsion RF au niveau de la section LIL. Passage du retard de -8.2µ à -8.4µs (pas de changement sur l'energie faisceau)

 

remise du retard à -8.2µs

parametre pour mardi

recette good for Xray and EL opérationel  (atténuateur section 1.385dB   29.2°C)

Arret machine

 

 

Attachment 1: Screenshot_2024-02-02_12-05-19.png
Screenshot_2024-02-02_12-05-19.png
  977   Tue Dec 10 11:35:16 2024 VM,HG,SCUnder ProcessShift summaryLI | TL | LE | Ring | Linac Commissionning | Ring Commissioning 50 and 70 MeV Emittance, and transport  

Intervention chiller (Maher) : maintenance nécessaire à prévoir (clé outil clignote)

Problème de fermeture casemate : bouton rouge de la grille de sortie enfoncée

11h36 Démarrage faisceau

11h42 HV is 'On'

12h52 RF Gun phase is 154 dg.; Att. sect. is 0.176 dB; Sect. Phase is 244 dg. TL/BPM02 X=-4 mm; Charges 89; 93

Linac steerers: H [1.17 -3.35]; V [-2.26 2.18]

Emittance measurements at 70 MeV

15h10 Set to 50 MeV; Gun Phase is 154 dg., Sect. Att. is 2.62 dB; Receipt from 28/11/2024 17h51

16h10 : loaded good storage for x rays from recepies to check 50 MeV . From this setting lets check back alignment in quads from the quand alignment script.

Before alignment : AL1
Str01-H01 : 2.69
Str01-V01 : -2.14
Str01-H02 : -4.46
Str01-V02 : 2.32
After alignment: AL2
Str01-H01 : 2.89
Str01-V01 : -1.92
Str01-H02 : -4.44
Str01-V02 : 2.33
But : transmission (charge) : drop by 40%
Let's do soléno scan to check transmission : Quand alignment not very good for charge transmission, see attched plots.

Let's check alignment on the section for the 2 alignments. We change the section phase by 50° and see displacement (Yag and BPM). For this, Quads should be off.

 

Alignement : AL2

Phase start : 217
-------------  TL -------------------
------ YAG LimaBPM Pixels -----
YAG X : 303.48206851 +/- 2.53475464631
YAG Y : 248.17574592 +/- 3.09361246552
------ YAG Max proj. Pixels -----
YAG X : 311.225 +/- 1.65056808402
YAG Y : 247.15 +/- 2.8332843133
------ BPMs en mm -----
BPM X : -0.280208425 +/- 0.0363865736831
BPM Y : 0.328087125 +/- 0.0522391011486

Phase end : 260
-------------  TL -------------------
------ YAG LimaBPM Pixels -----
YAG X : 580.056498553 +/- 3.23802401848
YAG Y : 262.888974065 +/- 4.1652343396
------ YAG Max proj. Pixels -----
YAG X : 580.5 +/- 4.28368999812
YAG Y : 257.5 +/- 3.69459064038
------ BPMs en mm -----
BPM X : 4.87663125 +/- 0.0575652671525
BPM Y : 0.096524675 +/- 0.0720854637695

 

Alignement : AL1

-------------  TL -------------------
------ YAG LimaBPM Pixels -----
YAG X : 262.601980531 +/- 19.0243746195
YAG Y : 332.053127301 +/- 1.57943041905
------ YAG Max proj. Pixels -----
YAG X : 281.125 +/- 2.59987980491
YAG Y : 327.075 +/- 1.9797411447
------ BPMs en mm -----
BPM X : -0.97775805 +/- 0.0424827626514
BPM Y : -1.10375235 +/- 0.0278375257903

Phase end : 260

-------------  TL -------------------
------ YAG LimaBPM Pixels -----
YAG X : 488.638304627 +/- 2.94860256378
YAG Y : 369.841993906 +/- 2.4681240712
------ YAG Max proj. Pixels -----
YAG X : 492.675 +/- 2.89298721048
YAG Y : 371.25 +/- 3.34477204006
------ BPMs en mm -----
BPM X : 3.5390905 +/- 0.0500967083465
BPM Y : -1.860907325 +/- 0.0472255884105

 

some tries to enter the ring, by using same recipe than last friday. But someting changed, not possible to get back to the same storage. May be beam quality has changed from last run.
--> We need to find a set of observables to be checked to get back to the same beam quality for injection !

 

18h30 : Tchuss

 

 


 


 

 

 

 

 

 

Attachment 1: Q_vs_SolenoScan_at_16-52-02_Q1_Off.png
Q_vs_SolenoScan_at_16-52-02_Q1_Off.png
Attachment 2: Q_vs_SolenoScan_at_16-39-39_recette_good_xrays.png
Q_vs_SolenoScan_at_16-39-39_recette_good_xrays.png
  1141   Thu Oct 23 07:45:25 2025 KD RC VC MJUnder ProcessShift summaryLI | TL | LE | Ring | Linac Commissionning | Ring Commissioning shift du 23 octobre 2025 

7h45: mise en chauffe en remote (modulateur, laser, frigo/chillers, cyclage)
8h45 : mise en route Modulateur
recette "50MeV_smallorbit_with EL_20251016_19_49_25.txt"   fichier VIDE
pB RI-C2 QP2 => serrage des cosses sur le Qpole +redemarrage serveur => résolu
alignement Quad
Feedback ring injection ON
RF ring cavity   150KV (phase 3° freq 500.100450MHz)

10h26 RF Gun laser state went 'Fault'

La streak a ete "importee" en sdc, elle est maintenant pilotable en sdc

Programme : spectres a different temps d'extraction

** Calib du CdTe avec feuille de Sn

** Mapping avec Script fwhm 25 positions CdTe  (-40 a +40 environ)

** Prise de spectres autour de la position zero mapping

** Prise de spectres a 12.5 Hz a differents temps d'extraction (de 10 ms a 70 ms)

** Prise de spectres a 1.5 Hz   a differents temps d'extraction (10, 50 et 100 ms)

 


 

 

 

  1176   Wed Jan 7 07:55:45 2026 VM DN MJ KDUnder ProcessShift summaryLI | TL | LE | Ring | Linac Commissionning | Ring Commissioning shift du 07 janvier 2026 

7h55: mise en chauffe en remote (modulateur, frigo/chillers, laser, cyclage)
11h25 HV is ON

Archivage lance

** 11h43 Receipt Ref. from  50_MeV_good_tune_0.17_0.7_20251212_16_03_54.txt.  Beam is in the ring W/O RF

RF gun phase  236 dg., Sect. Att. 2.37 dB, phase 215 dg. Linac steerers: H [0.68 -2.82], V [-2.42 3.05]

12h04 RF 100 kV, phase 12.5 dg. Good storage, screenshots. Charges (BPMs): -114, -112, -115 -115 -113 pA, Tune H: 0.17, V: 0.7, MRSV size: V 14.7 pix, H 27.7 pix

BPM.05-lib.04 Sum of tbtsum is 1.5e11

13h03 RF gun phase 242 dg., Sect. phase 216 dg.
13h32 RFgun phase ==> 247 dg.
13h40 Sect. phase ==> 219 dg. RF 14 dg.
13h59 RFgun phase ==> 249 dg.
13h40 Sect. phase ==> 218 dg. 

** 14h05 Receipt recipe_recipe_TL_Sole242_all_20260106_19_08_32.txt loaded. Ring charge was killed (at injection). Trying to recuperate

14h30 after RCDS on injection ring charge about the same. Synchrotron osc. minimized. tuns the sames, but MRSV is totaly different with two picks

** 15h39 Dispersion measurement using SST3 for 242 A BMAD and old recipes

** ~ 15h45 After loading the 242 A BMAD receipt, adjusting DPI and Sept. to suppress beta oscillations resulted in improved MRSV (h 27.1 pix, v 15 pix).

** 16h15 recipe_recipe_TL_Sole238_all_20260106_18_11_32.txt loaded. RCDS on injection.

It is enough good. MRSV size from 28 to 21 pix hor.

*** Plusieurs images of beam length streak enregistrees pour les 3 recettes (ref_recipe, sol242, sol238)
Rien de conculant a l'oeil (avec les 2 recettes Soleno, dans la 1ere ms le faisceau s'allonge toujours, d'un facteur en gros 2, mais a quantifier) - Images a traiter proprement (repertoire 20260107)

*** Cavite FP remise en etat : realignee, 90 kW stocke, frequence passee de 70 MeV a 50 MeV ==> prete pour jeudi et vendredi

17h30 Stop ThomX

=============================================

*** A faire avec les 2 recettes sol 242 et sol 238 : produire des X et mesurer
         - Trend de flux
         - Scan vertical FPC taille electrons
         - Taille de source X a l'IP avec les fentes 1 + camera photonic

*** Rappel these A. Gramelin FIGURE 6.16 :
           For 100 pC, during the 1st milisecond of storage :
                 -  Bunch length increases by a factor 2 - 3
                 -  Emittance X and Y increase by a factor ~ 0.2 - 0.3

 

 

Attachment 1: Screenshot_from_2026-01-07_12-07-41.png
Screenshot_from_2026-01-07_12-07-41.png
Attachment 2: Screenshot_from_2026-01-07_12-06-31.png
Screenshot_from_2026-01-07_12-06-31.png
Attachment 3: Screenshot_from_2026-01-07_12-05-53.png
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Attachment 4: Screenshot_from_2026-01-07_12-14-56.png
Screenshot_from_2026-01-07_12-14-56.png
Attachment 5: Screenshot_from_2026-01-07_12-19-13.png
Screenshot_from_2026-01-07_12-19-13.png
Attachment 6: Screenshot_from_2026-01-07_12-25-11.png
Screenshot_from_2026-01-07_12-25-11.png
Attachment 7: Screenshot_from_2026-01-07_12-50-55.png
Screenshot_from_2026-01-07_12-50-55.png
Attachment 8: Screenshot_from_2026-01-07_14-48-23.png
Screenshot_from_2026-01-07_14-48-23.png
Attachment 9: Screenshot_from_2026-01-07_16-04-29.png
Screenshot_from_2026-01-07_16-04-29.png
Attachment 10: Screenshot_from_2026-01-07_17-33-48.png
Screenshot_from_2026-01-07_17-33-48.png
Attachment 11: Screenshot_from_2026-01-07_17-29-44.png
Screenshot_from_2026-01-07_17-29-44.png
Attachment 12: Screenshot_from_2026-01-07_17-21-44.png
Screenshot_from_2026-01-07_17-21-44.png
Attachment 13: Screenshot_from_2026-01-07_17-20-03.png
Screenshot_from_2026-01-07_17-20-03.png
Attachment 14: Screenshot_from_2026-01-07_17-19-23.png
Screenshot_from_2026-01-07_17-19-23.png
Attachment 15: Screenshot_from_2026-01-07_17-17-18.png
Screenshot_from_2026-01-07_17-17-18.png
Attachment 16: Screenshot_from_2026-01-07_17-16-46.png
Screenshot_from_2026-01-07_17-16-46.png
  1177   Thu Jan 8 09:07:08 2026 IC, HG, RC, DN, JMUnder ProcessShift summaryLI | TL | LE | Ring | Linac Commissionning | Ring Commissioning Test of the new receipt from BMAD Isol = 242 A 

8h55: mise en chauffe (modulateur, frigo/chillers, laser, cyclage)

10h20 HV ON

Start with the receipt nominal.  problem with the RF gun laser camera. Solved.

Going to the new receipt for Isol = 242 A

Tuning injection. Good storage.

We performed sveral scans with FPC. The measured vert beam siwe is about 82 um. The best X-ray fluc I3+I4 was about 30-40 kpA.

The size at MRSv hor/vert is about 15/19 pixels

Starting from a certain moment, the trig to trig injection stability changed. See the screenshot. This to be understood.

Going to nominal receipt. After the tuning of the injection, the good storage is obtained. Size at MRSV 15/24 pixels

measurements of the dispersion and LOCO studies. First without sextupoles and later with. To be continued.

Going back to new receipt Isol = 242 A. Storage is bad. Retuning of the TL and injeciton. Good storage is obtained with good tunes 0.17/0.7.

Studies with X-rays will be continued tomorrow.

dispersion and beta function measurement as tunes are seems to be quite stable

Switching on the streak camera.

Phases during the day:

RF Gun: 296; 229; 242

RF section: 218; 209; 218


 

Attachment 1: Screenshot_from_2026-01-08_12-19-34.png
Screenshot_from_2026-01-08_12-19-34.png
Attachment 2: Screenshot_from_2026-01-08_12-06-27.png
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Attachment 3: Screenshot_from_2026-01-08_12-39-03.png
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Attachment 4: Screenshot_from_2026-01-08_12-39-34.png
Screenshot_from_2026-01-08_12-39-34.png
Attachment 5: Screenshot_from_2026-01-08_12-46-37.png
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Attachment 6: Screenshot_from_2026-01-08_12-47-55.png
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Attachment 7: Screenshot_from_2026-01-08_12-50-17.png
Screenshot_from_2026-01-08_12-50-17.png
Attachment 8: Screenshot_from_2026-01-08_13-15-31.png
Screenshot_from_2026-01-08_13-15-31.png
Attachment 9: FWHM_Trend_Screenshot_from_2026-01-08_13-43-57.png
FWHM_Trend_Screenshot_from_2026-01-08_13-43-57.png
Attachment 10: Screenshot_from_2026-01-08_14-14-01NOM.png
Screenshot_from_2026-01-08_14-14-01NOM.png
Attachment 11: Screenshot_from_2026-01-08_14-32-38nominal.png
Screenshot_from_2026-01-08_14-32-38nominal.png
Attachment 12: Screenshot_from_2026-01-08_17-22-16BMAD242.png
Screenshot_from_2026-01-08_17-22-16BMAD242.png
Attachment 13: Screenshot_from_2026-01-08_17-36-18.png
Screenshot_from_2026-01-08_17-36-18.png
  1185   Wed Jan 21 07:56:59 2026 KD MJ RC DNUnder ProcessShift summaryLI | TL | LE | Ring | Linac Commissionning | Ring Commissioning Position Horiz FPC ("spectres dromadaires") 

7h55: mise en chauffe en remote (modulateur, cyclage, laser, frigo/chillers)
==> plus de trig sur la machine (sur toute la plage de scan de la phase stab du laser PC). ==> OK, je suis une truffe le laser était "off"

**** Programme ****

- mesures RP
- test de différentes position IP pour remédier aux spectres en "dromadaires"

===============================================================

11h X_fpc = -1.8 mm

** Spectres 

centre  [H , V] = [-8.5 , -13.5] 
V+25  [H , V] = [-8.5 , +11.5]

** Mesure taille de source fente1

11h50 X_fpc = 0 mm (faisceau en bord de tube (coupe par le tube meme)

** Spectres 

centre [H , V] = [+62 , -13] 
V+25  [H , V] = [+62 , +12]
H-25  [H , V] = [+37 , -13]

12h30 X_fpc = -0.9 mm

** Spectres 

centre [H , V] = [+25 , -13] 
V+25 [H , V] = [+25, +12]

Plus de phase plus d’electron – 13h22 retour faisceau

H-25 [H , V] = [0 , -13]

Plus de phase – plus d’e- - 13h47 retour faisceau

V+25 [H , V] = [+25 , +12]
Centre [H , V] = [+25 , -13]
H-25 [H , V] = [0 , -13]
H+25 [H , V] = [50 , -13]
V-25 [H , V] = [0+25, -38]

14h30 Retour a X_fpc = -1.8 mm (pour aller a det +/-40 mm)

** Spectres 

centre [H , V] = [-7 , -13] 
V+25 [H , V] = [-7 , +12] 
H+25 [H , V] = [+18, -13] 
H-25 [H , V] = [-32 , -13] 
V-25 [H , V] = [-7 , -38]
V-40  [H , V] = [-7 , -53] (droma)
V-40 [H , V] = [-7 , -53]  avec orbite e- differente  (droma)

15h40 Retour a X_fpc = -0.9

** Spectres 

centre [H , V] = [+25, -13]
V+40   [H , V] = [+25, +27]      anneau “pas bon” (drom)
V+40   [H , V] = [+25, +27]      anneau “reajuste” (un peu drom)

** Mesure taille source fente 1

** Spectres

H+40  [H , V] = [+65, -13]
V-40   [H , V] = [+25, -53]
V-40   [H , V] = [+25, -53] avec cavite RF 200 kV

16h45 X_fpc = - 0.6

** Spectre

centre [H , V] = [+40, -13]
H-40 à [H , V] = [0, -13]
V-40 à [H , V] = [40, -53]
V+40 à [H , V] = [40, +27]
H+30 à [H , V] = [70, -13] (on ne peut pas aller a +40)

** Quelques autres spectres pris

** Mesure taille source fente 1

 

  838   Thu Feb 1 11:50:28 2024 MJNot FixedShift summaryLI | TL | LE | Ring | Linac Commissionning Attenuateur LIL / Puissance LIL / Energie electrons 

La puissance entree canon a ete verifie et conforme a l'atterndu (6 MW = 18/3 MW)

Avec l'attenuateur a 2 db, le power meter dans la casemate affiche 9 mW entree LIL.

--> Le faisceau est detecte sur BPMTL2 et sur YAGTL2 pour I_DIPOLE = 143 A ce qui, avec les caracteristique du dipole, correspond a une energie sortie section de 45.5 MeV

  817   Wed Nov 15 09:13:06 2023 KD, MJ, RCUnder ProcessShift summaryLI | TL | LE | Ring | Laser | Opt | SY shift du 15 novembre 2023 

9h : mise en chauffe de la machine

12h: intervention Iryna et Slava pour un meilleur stockage dans l'anneau (recette semaine passé)

Recherche de la phase et du bucket Laser/e-

- X trouvé (cf. screen shots et datas) :

* bucket Laser/trigger = 21.5ns (visu au scope)

* Dephaseur 500MHz (ER/CA/RAC.05-API.AO1) : 5.3 V (à affiner)

* Cavité trop instable avec le lock sur la fréquence RF (délock en moins de qq minutes)

 

*** Passage dans la EL (uniquement jusqu'au BPM) avec :

qp1 qp2 qp3 = 1.5   -2.6   0.7

kicker 5840 V retard -7.96

dpi 0.8 A

dp 160.1 A

--> TBTSUM ne peut pas etre utilise pour estimer la charge entrante anneau / sortante anneau car : TBTSUM sortant > TBTSUM entrant (cf screenshot de 15h44)

 

*** Mesure de la taille e- a l'IP avec table FPC - Fin de journee, a voir si ces mesures permettent d'extraire taille e-

 

*** Remarques ***

- Beaucoup de claquage au niveau du modulateur/Klystron (cf. TL/BPM.02 trend)

*** Programme ***

- Optimization du flux de rayons X (ajustement phase/synchro, ajustement position laser)

- passage dans la Ligne d'Extraction

Attachment 1: Screenshot_2023-11-15_16-40-54.png
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Attachment 2: Screenshot_2023-11-15_17-38-44.png
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Attachment 3: pico_I1_Xsearch.dat
# DATASET= "xli/op/tmd.01/i1[0]"
# SNAPSHOT_TIME= 2023-11-15_17:17:07.459186
2023-11-15_15:27:53.556484	274.074815821472
2023-11-15_15:27:53.656761	274.074815821472
2023-11-15_15:27:53.757046	272.7549293088239
2023-11-15_15:27:53.857399	272.7549293088239
2023-11-15_15:27:53.956674	272.7549293088239
2023-11-15_15:27:54.056986	272.7549293088239
2023-11-15_15:27:54.157231	272.7549293088239
2023-11-15_15:27:54.256462	274.25029206303793
2023-11-15_15:27:54.356794	274.25029206303793
2023-11-15_15:27:54.457050	274.25029206303793
2023-11-15_15:27:54.557337	274.25029206303793
2023-11-15_15:27:54.656632	274.25029206303793
2023-11-15_15:27:54.756926	273.1249552964738
2023-11-15_15:27:54.857279	273.1249552964738
2023-11-15_15:27:54.956542	273.1249552964738
2023-11-15_15:27:55.056818	273.1249552964738
2023-11-15_15:27:55.157091	273.1249552964738
2023-11-15_15:27:55.257369	274.2846243711704
2023-11-15_15:27:55.356737	274.2846243711704
2023-11-15_15:27:55.457037	274.2846243711704
2023-11-15_15:27:55.557300	274.2846243711704
2023-11-15_15:27:55.656560	274.2846243711704
2023-11-15_15:27:55.756824	272.4688267410533
2023-11-15_15:27:55.857143	272.4688267410533
2023-11-15_15:27:55.956415	272.4688267410533
2023-11-15_15:27:56.056710	272.4688267410533
2023-11-15_15:27:56.157014	272.4688267410533
2023-11-15_15:27:56.257297	274.99034403833775
2023-11-15_15:27:56.356630	274.99034403833775
2023-11-15_15:27:56.456904	274.99034403833775
2023-11-15_15:27:56.557192	274.99034403833775
2023-11-15_15:27:56.656496	274.99034403833775
2023-11-15_15:27:56.756779	274.97127053381973
2023-11-15_15:27:56.857143	274.97127053381973
2023-11-15_15:27:56.956413	274.97127053381973
2023-11-15_15:27:57.056666	274.97127053381973
2023-11-15_15:27:57.156974	274.97127053381973
2023-11-15_15:27:57.257252	275.60832558472214
2023-11-15_15:27:57.356554	275.60832558472214
2023-11-15_15:27:57.456793	275.60832558472214
2023-11-15_15:27:57.557075	275.60832558472214
2023-11-15_15:27:57.657292	275.60832558472214
2023-11-15_15:27:57.756568	271.6105190377417
2023-11-15_15:27:57.856877	271.6105190377417
2023-11-15_15:27:57.957194	271.6105190377417
2023-11-15_15:27:58.056485	271.6105190377417
2023-11-15_15:27:58.156783	271.6105190377417
2023-11-15_15:27:58.257064	273.5216841904489
2023-11-15_15:27:58.356455	273.5216841904489
2023-11-15_15:27:58.456722	273.5216841904489
2023-11-15_15:27:58.556999	273.5216841904489
2023-11-15_15:27:58.657293	273.5216841904489
2023-11-15_15:27:58.756589	273.9260424862313
2023-11-15_15:27:58.856962	273.9260424862313
2023-11-15_15:27:58.957273	273.9260424862313
2023-11-15_15:27:59.056547	273.9260424862313
2023-11-15_15:27:59.156821	273.9260424862313
2023-11-15_15:27:59.257126	273.453019574184
2023-11-15_15:27:59.356492	273.453019574184
2023-11-15_15:27:59.456765	273.453019574184
2023-11-15_15:27:59.556997	273.453019574184
2023-11-15_15:27:59.657327	273.453019574184
2023-11-15_15:27:59.756634	273.73912214195457
2023-11-15_15:27:59.856973	273.73912214195457
2023-11-15_15:27:59.957236	273.73912214195457
2023-11-15_15:28:00.056530	273.73912214195457
2023-11-15_15:28:00.156833	273.73912214195457
2023-11-15_15:28:00.257151	271.69444245762105
2023-11-15_15:28:00.356484	271.69444245762105
2023-11-15_15:28:00.456794	271.69444245762105
2023-11-15_15:28:00.557097	271.69444245762105
2023-11-15_15:28:00.656394	271.69444245762105
2023-11-15_15:28:00.756703	275.0551939536991
2023-11-15_15:28:00.857053	275.0551939536991
2023-11-15_15:28:00.956395	275.0551939536991
2023-11-15_15:28:01.056712	275.0551939536991
2023-11-15_15:28:01.156934	275.0551939536991
2023-11-15_15:28:01.257069	272.4688267410533
2023-11-15_15:28:01.356502	272.4688267410533
2023-11-15_15:28:01.456776	272.4688267410533
2023-11-15_15:28:01.557045	272.4688267410533
2023-11-15_15:28:01.657289	272.4688267410533
2023-11-15_15:28:01.756550	273.93748658894214
2023-11-15_15:28:01.856900	273.93748658894214
2023-11-15_15:28:01.957192	273.93748658894214
2023-11-15_15:28:02.056486	273.93748658894214
2023-11-15_15:28:02.156776	273.93748658894214
2023-11-15_15:28:02.257103	273.2889874353289
2023-11-15_15:28:02.356430	273.2889874353289
2023-11-15_15:28:02.456709	273.2889874353289
2023-11-15_15:28:02.556985	273.2889874353289
2023-11-15_15:28:02.657284	273.2889874353289
2023-11-15_15:28:02.756588	274.3914359964714
2023-11-15_15:28:02.856975	274.3914359964714
2023-11-15_15:28:02.957231	274.3914359964714
2023-11-15_15:28:03.056504	274.3914359964714
2023-11-15_15:28:03.156781	274.3914359964714
2023-11-15_15:28:03.257056	273.06392008201607
2023-11-15_15:28:03.356420	273.06392008201607
2023-11-15_15:28:03.456715	273.06392008201607
2023-11-15_15:28:03.556948	273.06392008201607
2023-11-15_15:28:03.657262	273.06392008201607
2023-11-15_15:28:03.756564	274.57454163984454
2023-11-15_15:28:03.856875	274.57454163984454
2023-11-15_15:28:03.957186	274.57454163984454
2023-11-15_15:28:04.056440	274.57454163984454
2023-11-15_15:28:04.156731	274.57454163984454
2023-11-15_15:28:04.257000	273.27372863171445
2023-11-15_15:28:04.357359	273.27372863171445
2023-11-15_15:28:04.456683	273.27372863171445
2023-11-15_15:28:04.557010	273.27372863171445
2023-11-15_15:28:04.657277	273.27372863171445
2023-11-15_15:28:04.756596	273.540757694967
2023-11-15_15:28:04.856966	273.540757694967
2023-11-15_15:28:04.957278	273.540757694967
2023-11-15_15:28:05.056545	273.540757694967
2023-11-15_15:28:05.156830	273.540757694967
2023-11-15_15:28:05.257089	272.95710845671505
2023-11-15_15:28:05.356422	272.95710845671505
2023-11-15_15:28:05.456685	272.95710845671505
2023-11-15_15:28:05.556961	272.95710845671505
2023-11-15_15:28:05.657245	272.95710845671505
2023-11-15_15:28:05.756560	274.61650334978424
2023-11-15_15:28:05.856881	274.61650334978424
2023-11-15_15:28:05.957156	274.61650334978424
2023-11-15_15:28:06.056386	274.61650334978424
2023-11-15_15:28:06.156623	274.61650334978424
2023-11-15_15:28:06.256947	272.8007057196672
2023-11-15_15:28:06.357299	272.8007057196672
2023-11-15_15:28:06.456594	272.8007057196672
2023-11-15_15:28:06.556863	272.8007057196672
2023-11-15_15:28:06.657187	272.8007057196672
2023-11-15_15:28:06.756458	273.9222277853277
2023-11-15_15:28:06.856782	273.9222277853277
2023-11-15_15:28:06.957054	273.9222277853277
2023-11-15_15:28:07.057329	273.9222277853277
2023-11-15_15:28:07.156607	273.9222277853277
2023-11-15_15:28:07.256845	272.4611973392461
2023-11-15_15:28:07.357117	272.4611973392461
2023-11-15_15:28:07.456296	272.4611973392461
2023-11-15_15:28:07.556587	272.4611973392461
2023-11-15_15:28:07.656908	272.4611973392461
2023-11-15_15:28:07.757228	275.4404787449634
2023-11-15_15:28:07.856582	275.4404787449634
2023-11-15_15:28:07.956845	275.4404787449634
2023-11-15_15:28:08.057174	275.4404787449634
2023-11-15_15:28:08.156451	275.4404787449634
2023-11-15_15:28:08.256701	272.1560212669575
2023-11-15_15:28:08.357026	272.1560212669575
2023-11-15_15:28:08.457334	272.1560212669575
2023-11-15_15:28:08.556586	272.1560212669575
2023-11-15_15:28:08.656892	272.1560212669575
2023-11-15_15:28:08.757187	272.7625587106311
2023-11-15_15:28:08.856513	272.7625587106311
2023-11-15_15:28:08.956786	272.7625587106311
2023-11-15_15:28:09.057058	272.7625587106311
2023-11-15_15:28:09.156342	272.7625587106311
2023-11-15_15:28:09.256649	274.5974298452662
2023-11-15_15:28:09.356969	274.5974298452662
2023-11-15_15:28:09.457298	274.5974298452662
2023-11-15_15:28:09.556546	274.5974298452662
2023-11-15_15:28:09.656840	274.5974298452662
2023-11-15_15:28:09.757152	272.6061559735832
2023-11-15_15:28:09.856476	272.6061559735832
2023-11-15_15:28:09.956750	272.6061559735832
2023-11-15_15:28:10.057042	272.6061559735832
2023-11-15_15:28:10.156362	272.6061559735832
2023-11-15_15:28:10.256641	274.1511098395441
2023-11-15_15:28:10.356972	274.1511098395441
2023-11-15_15:28:10.457241	274.1511098395441
2023-11-15_15:28:10.556516	274.1511098395441
2023-11-15_15:28:10.656851	274.1511098395441
2023-11-15_15:28:10.757126	272.5527501609327
2023-11-15_15:28:10.856462	272.5527501609327
2023-11-15_15:28:10.956706	272.5527501609327
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... 65240 more lines ...
Attachment 4: ri-c1_dg_bpm.02-lib.03_tbtsum.dat
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Attachment 5: oscilloscope_RI.png
oscilloscope_RI.png
Attachment 6: Screenshot_from_2023-11-15_15-44-28.png
Screenshot_from_2023-11-15_15-44-28.png
  1160   Tue Dec 2 09:28:15 2025 Entered by Super Team from 134.158.205.28 on Tue Dec 2 09:27:54 2025Not FixedInfoLI | TL | LE | Ring | Diag | Linac Commissionning | Ring Commissioning Shift ThomX/Xrays : Soucis démarrage icon4.gif 

Last Recettes for 50 MeV:

recipe_recipe_LI_TL_RI_good_20251127_12_42_51.txt

recipe_recipe_LI_TL_RI_good_20251125_16_42_01.txt

Soucis machine : indecision

- Redpytaya : impossible de les démarrer
- Wavecatcher : démarrent mais soucis "trigger"

Vincent pense que cela ne vient pas de la synchro, les signaux semblent ok
Peut-etre soucis au niveau du trig du Laser, si qq peut nous aider ... angel

 

c'est un pB soft...

redpitaya 2 3 4 baie 17 redémarées (serveur en carafe)

wac = 1 2 3 redemarré (serveur en carafe)

 

redémarrage Klystron

signaux RF sur les redpitaya

PB synchronisation du laser FC avec le 500MHz LI (screen shot ICT LI)

Soucis avec le laser qui ne s'allumait plus, on a du le faire depuis la salle Laser, avec Kevin en visio.

18h : Stop ThomX

Attachment 1: Screenshot-ICTLI.png
Screenshot-ICTLI.png
ELOG V3.1.4-395e101