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

08h35 Warm-up ThomX: Modulator, Laser, Fridge
08h41 Chillers were started, cycling all magnets.

09h40 HV is ON

10h12 The receipt loaded: recipe_recipe_LI_TL_RI_all_20260116_14_22_26.txt. Beam is in the ring W/O RF

RF gun phase 40 dg., Sect. Att. 2.556 dB, Sect. phase 207 dg., Linac steerers: H [0.58 -2.83], V [-2.48 2.94],  charges (BPMs):  -125, -119, -121, -122, -119 PC, the laser att.  359

10h38 RF 100 kV, phase -4 dg., manual phase shifter was adjusted.

10h54 RI_C1 Quads were stoped to chec dispersion at injection

13h00 Triggers stoped, after that was fixed the laser phase jumped to 202 dg. sect. phase 206 dg. 

15h39 Mod. standby

17h20 HV is on

18h01 Stop ThomX

08h29 Warm-up ThomX: Modulator, Laser, Fridge
Chillers were started, cycling all magnets.

10h48 Beam is in the ring after resolving a lot of problems. The receipt loaded: recipe_recipe_LI_TL_RI_all_20260115_18_10_34.txt, with Linac-Tl :   recipe_recipe_TL_all_20260116_10_52_12.txt, recipe_recipe_LI_TL_straight_all_20260116_10_51_52.txt. Linac steerers: H [0.59 -2.74], V [-2.48 3.06]

RF Gun phase 140 dg. Sect. Att. 2.523 dB, Sect. phase  190 dg. Laser att. 409, charges (BPMs): -100, -95, -98, -98 -97 pC , RF 100 kV, phase -8.5 dg. The MRSV camera dozs not operate.

11h44 Problem with cameras

All triggers dissapeared

Nicolas fixed it, but phases is different: RF gun phase 96 dg., sect phase 203 dg. RF cav. phase?

12h50 Laser phase jumped to 171 dg. Sect. phase ==> 210 dg. Manual phase shifter set back to 1176. The laser att. ==> 359 for RF gun charge -115 pC (BPM)

Ring studies Model-Machine

From time to time laser fase jumps.

Triggers stopped. Nicolas is looking at it.

14h40 Beam dissapears in between the studies. Every time we retune the linac...

No triggers!!!!

18h04 LOCO is on its way. Time to times the laser loses phase synchronization. It's terrible.

18h20 We've lost laser synchronization.

18h21 Stop ThomX

08h56 Warm-up ThomX: Modulator, Laser, Fridge
Chillers were started, cycling all magnets.
Low SF6 pressure.

10h20 HV ON

Tuning of the Linac. Charge at ICT1 is about 100 pC

Load the nominal receipt.

Modulator put to stand by. Lunch break.

13h16 HV ON

Application of the quadrupol calibration curve -12..12 A.

NEW

K1i_model =

   -1.5941
   -1.5941
   -1.5941
   -1.5941

K2i_model =

    3.2615
    3.2615
    3.2615
    3.2615

K3i_model =

   -6.1107
   -6.1107
   -6.1107
   -6.1107

K4i_model =

    5.4292
    5.4292
    5.4292
    5.4292

K5i_model =

   -3.5901
   -3.5901
   -3.5901
   -3.5901

K6i_model =

    2.3630
    2.3630
    2.3630
    2.3630

>> 
OLD
K1i_model =

   -1.5473
   -1.5473
   -1.5473
   -1.5473

K2i_model =

    3.1987
    3.1987
    3.1987
    3.1987

K3i_model =

   -6.0302
   -6.0302
   -6.0302
   -6.0302

K4i_model =

    5.3524
    5.3524
    5.3524
    5.3524

K5i_model =

   -3.5248
   -3.5248
   -3.5248
   -3.5248

K6i_model =

    2.3082
    2.3082
    2.3082
    2.3082

Machine-Model studies.

Nominal receipt

Before LOCO
=== dQ/dx comparison (axis: delta (dk*steps)) ===
Family    dQx/dx(M)      dQx/dx(T)      ratio     dQy/dx(M)      dQy/dx(T)      ratio
QP1     +4.975e-01  +5.370e-01   0.927   -3.362e-01  -4.067e-01   0.826
QP2     +7.289e-01  +8.119e-01   0.898   -2.407e-01  -2.830e-01   0.851
QP3     +2.198e-01  +2.420e-01   0.908   -9.850e-01  -6.102e-01   1.614
QP4     +1.026e+00  +1.136e+00   0.903   -2.736e-01  -2.968e-01   0.922
QP31    +6.600e-02  +7.543e-02   0.875   -2.357e+00  -1.288e+00   1.830
QP41    +5.350e-01  +6.000e-01   0.892   -1.024e+00  -5.563e-01   1.841

LOCO studies.

Checked that the first turn on which we inject now is 13-14th.

18h20 STOP THOMX

08h36 Warm-up ThomX: Modulator, Laser, Fridge
8h41 Chillers were started, cycling all magnets.
09h40  HV is ON

** 10h38 recipe_recipe_LI_TL_RI_all_Sol245_20260113_17_50_09.txt loaded, RCDS on injection11h23 

RF 100 kV, Phase -4 dg. Manual 1179. RF gun phase 168 dg., Sect Att. 2.53 dg., Phase 214 dg., Charges (BPMs): -185, -177, -182, -181 pC, Linac steerers H [0.75 -2.95], V [-2.64 3.14] ,
MRSV FWHM about 50, sigma down to 22 pix
Acquisition d'un SPECTRE "on-axis a l'oeil" (Hm3_Vm10p2)  - "Nominal ring QUADs"

** 11h36 Set charge to 100 pC, Laser Att. 329,  RF gun phase ==> 171 dg.

- Acquisition d'un SPECTRE "on-axis a l'oeil" (Hm3_Vm10p2) - "Nominal ring QUADs"
- Scan vertical FPC (~11h50)
- Mesure Taille source fente 1 (images wiite beam + image fente source)

** 12h21 recipe_recipe_LI_TL_RI_all_20260109_14_44_42.txt loaded, then receipts for the linac and the transfer line recipe_recipe_TL_all_20260114_12_20_00.txt, recipe_recipe_LI_TL_straight_all_20260114_12_19_54.txt

RCDS on injection. Sometimes MRSV FWHM ==>40 and less. 
- 13h51 : Acquisition d'un SPECTRE "on-axis a l'oeil" (Hm3_Vm10p2)  - "NOT nominal ring QUADs"
- 14h : Scan FPC

** 14h55 : Discussion Marie/Iryna/Viktor ==>  Retour a la recette "nominal ring QUADs" (recipe_recipe_LI_TL_RI_all_Sol245_20260113_17_50_09.txt)
PUIS, a 15h10 : recipe_recipe_LI_TL_RI_all_20260114_12_31_30.txt reloaded  ....  Pourquoi ? je ne sais pas ... Je ne l'ai su qu'a 16h30, donc :

• Tous les spectres_vs_position_CdTe mesures ensuite (necessaires pour retrouver la divergence e-) sont acquis en fait avec "NOT nominal ring QUADs" au lieu de  de la recette SOL_245 isuue de la simu Julien (recipe_recipe_LI_TL_RI_all_Sol245_20260113_17_50_09.txt)
• Mesure Taille source fente 1 (15h14-15h18)

** 17h30 : recherche de la cause "spectres dromadaires"

• Visualisation de tout le tube ==> rien dans le trajet du faisceau
• Spectre en desynchro toute fentes ouvertes : meme effet dromadaire
• Mouvements HORIZONTAUX de la cavite FP et/ou Phase : Variations claires de la forme du dromadaire (spectres pris pour pos Horiz FPC -1.8, -1.3 -2.3 mm)  ==> Effet dromadaire sans doute lie au faisceau d'e- qui est courbe entre les 2 dipoles (==> 2 interactions ?) . Effet a quantifier/simuler, puis, si ca se confirme, il faudra trouver une solution pour que l'IP soit absolument sur la tangeante de la courbure des e-

18h05 Stop ThomX

7h55 : mise en chauffe en remote (chiller/frigo, laser, modulateur, cyclage)

9h : démarrage, pas de soucis au niveau du trig

16h30 : demarrage anneau pour recette 230A

les phases ont changées :

dephaseur manuel: 1182 pour 50MeV

prise de donnée à 230A (taille faisceau + spectre)

Mesures du jour : 

• Quad scans à QP1 pour voir d'autres points de fonctionnement avec une matcihing anneau correct (Figure de merite <1 ?)
  • autres points Solé
  • autres points Q > 100pC (jusqu'à 300pC)  
• Active learning pour données TL jusqu'à TLSST3 inclus.  

Attenuation laser : 320 pour pour avoir 100 pC @ Emax

Alignement Quads + minimisation disp E ok 
 14h40 : Laser s'est arreté ... le Ds s'est mis en fault --> soucis de liquide de refroidissement
--> intervention de kevin 

 18h04: plus de trig (Synchro? ) --> trigger ne clignotte plus 

18h20 : Stop ThomX

8h05: mise en chauffe en remote (modulateur, frigo/chillers, laser, cyclage)

09h06 HV is ON

10h10 receipt recipe_recipe_LI_TL_RI_all_20260108_17_34_30.txt (242 A BMAD). RF gun phase 226 dg. Sect Att. 2.457 dB, sect. phase 214 dg. Laser att. 319 Charges: -127, -122, -127, -124 pC 

RF 100 kV, phase -7.5 dg, manual phase shifter 4497. TL/BPM02 x=-3 mm 

10h20 after the PSS interloc the modulator is running, but there is no any RF 

10h35 Kevin fixed it. HV is on 

11h37 receipt recipe_recipe_LI_TL_RI_all_20260107_17_19_00.txt loaded for Sol. 238 A BMAD

RCDS on injection receipt saved recipe_recipe_LI_TL_RI_all_20260109_11_52_26.txt

13h 41 Go to 242 A to measure the spectrum

The beam blow up is visible.

Optimization of the ring to find anther working point Tunes  0.145/0.7. The beam storage seems more stable, small MRSV 15/21 pixels New receipt: recipe_recipe_LI_TL_RI_all_20260109_14_44_42.txt

15h14 change to npminam point Isol = 230 A Optimization of the injection. MRSV 15/22 pixels

Measurement of the spectrum

15h40 optimization of the injector

Good storage and MRSV beam size is restored. X- ray flux is about 20 kpA

At every point the streak camera data is saved.

Taking the spectra

*** Results (all files in data shared, streak, PhotonicScience, spectrum) ***

An error was made during the source size measurement of the usual working point (230A), no beam size available for that recipe (from previous measurement e- [H,V] = [180, 120], to be confirmed)

--- Bunch length (cf. curve)

The preliminary analysis show that the bunch length seems to not be affected by the recipe used. The 230A recipe show a longer bunch but it is not very significatif due to the machine stability.

--- bunch size

242A (in the morning) : e- [H,V] = [141 um, 56 um]

242A (in the afternoon) : e- [H,V] = [154 um, 58 um] (same as in the morning)

242A after optimization : e- [H,V] = [107 um, 62 um]

238A : e- [H,V] = [161 um, 92 um]

--- Spectrum ==> divergence : to be done

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

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

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

problème lancement cyclage RI-C1: QP.04, QP.09 et QP.10

Sole 238
Scan_QP0118h27.txt :

recette pour les quads : /tmp_mnt/data/shared/recipes/saved/Studies_BMAD_Sole_Bunch/recipe_recipe_TL_Sole238_all_20260106_18_11_32.txt 

Solé 242A:

recette :  /tmp_mnt/data/shared/recipes/saved/Studies_BMAD_Sole_Bunch/recipe_recipe_TL_Sole242_all_20260106_19_08_32.txt

en PJ : images à QP7 pour les 2 recettes

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

7h20: mise en chauffe en remote (frigo/chiller, laser, modulateur, cyclage)

*** Programme ***

- dernière demie-journée de mesures. Mesure de dosimétrie (dose transverse)

- autres ?

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.  

7h15: mise en chauffe en remote (chiller/frigo, laser, modulateur, cyclage)

8h33 HV ON

09h30 Beam is in the ring 40 MeV, RF 100 kV ==> 150 kV I3+I4 up to 14000 pA. Vertical step at IP from -2 mm to +2 mm. MRSW 24.5 pix. Receipt  recipe_recipe_LI_TL_RI_all_20251217_09_17_49.txt

10h19 Hor. tune 0.177, sum of TbTsum 2e11. TL/BPM02 X=+3 mm, RF cavity phase 5 dg. Sect Att. 3.967 dB, Sect. phase 197 dg. RF gun phase 222 dg. Charges: -165, -157, -159, -161, -158 pA Laser Att. 300, Sol. 223 A

*** Programme ***

* faire 1 à 2 tomographie à 40 Mev avant de passer aux manips à 70MeV (besoin de flux pour la rapidité d'acquisition)

* passage à 70MeV, mesure de dosimétrie et spectre angulaire

7h10: mise en chauffe en remote (chiller/frigo, laser, cyclage, modulateur).

à cause du faible flux d'hier et de la non répétabilité des recettes de la semaine précédente :

* essaie avec la section à 28.4°C (seule condition différente de mardi dernier)

8h10: démarrage. 

chargement de la recette du "recipe_recipe_LI_TL_RI_all_20251209_17_54_51.txt", rien sur la caméra sst, on retrouve les paramètres de mardi (3.74dB, 210°C phase section)

image SST vraiment décalé ==> quelques chose à bougé sur la machine ? ==> réalignement quads

** après réalignement et ajustement (phase + atténuateur) 

e-:

attenuateur section : 3.77dB

phase section : 214°

chiller: 28.4°C

Freq: 500.11851 MHz

phase shifter manuel : 8600

longueur paquet pas assez de MRSV pour la mesure

10h43 Results: T_sect. 30dg.C (consigne 29.2), laser spot position: 4.714 H, 3.524 V; starting from the receipt recipe_recipe_LI_TL_RI_all_20251211_14_07_28.txt

RF gun phase 222 dg., Sect. Att. 3.987, phase 197 dg. TL/BPM02 X= +2 mm, Linac steerers: H [0.97 -3.6], V [-3.0 3.9], Charges (BPMs): -115, -109, -112, -112, -112 pC, 

Beam in the ring after RCDS on TL RF 100 kV, phase 9.0 dg. MRSV 27 pix, (sometime 22 pix). RCDS on ring V cor. X I3+I4 up to 12000 pA but with vertical step at IP ( recipe_recipe_LI_TL_RI_all_20251216_10_41_50.txt)

10h58 Went to the receipt recipe_recipe_LI_TL_RI_all_20251216_10_09_21.txt to have more flat vertical orbit (4000 pA after FPC table scan)

QUAD cycling

11h30 We reoptimized the vertical orbit to have smaller angle. I3+I4 ~7-8 kpA Receipt: recipe_recipe_LI_TL_RI_all_20251216_11_29_31.txt (MRSV 24 - 26 pix, Hor. tune 0.2 at maximum flux)

18h20 Laser Att ==>297 ,charges:-159,-152,-157,-156,-155 pC, Solenoid 225 A, Sum of TbTsum 2e11, from 15e11, MRSV 35.8 pix, I3+I4 about 8000, then FPC desynchronized.

18h43 Stop ThomX

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

* cannot enter to the ring with the recipe "40_MeV_Enough_Good_20251211_14_07_28", probably due to mis alignment procedure of the QP1-QP3.
* reset de TL steerers with the recipe "40MeV_20250401_15_09_50", first turn ok but no storage.
* steerers Ring to 0.

12h --> back to previous cathod point (last week tuning was done at that position)

• TEST/HL/ThomX_PhotoCathode/Horizontal_Iris_Position_set : <type 'float'> : 4.714
• TEST/HL/ThomX_PhotoCathode/Vertical_Iris_Position_set : <type 'float'> : 3.524

17h: essaie avec la recette initial de mardi "recipe_recipe_LI_TL_RI_all_20251209_17_54_51.txt"

==> difficile de retouver le TBTsum de mardi, ==> après quelques ajustements (rcds, etc). on retrouve quelques choses de passable

==> MRSV totalement différent: long, étalé et pas au même endroit (à droite au lieu d'être hors écran à gauche)

==> problème de répétabilité. La seule différence est la température de la section. 

*** Scan FPC table (~16h) - A l'oeil FWHM ~ 300 microns ==> rms ~ 128 ==> sig_ele_Vert ~ 107 ==> sig_Source_Vert ~ 60 microns

Bilan imagerie du jour :
tres bas flux et faisceau tres instable .==>  Pas de contraste de phase visible. On espere que demain sera mieux ! 

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

*** programme ***

Mesure imagerie X à basse énergie (40MeV)

08h40 Warm-up ThomX: Modulator, Laser, Fridge

8h45 Chillers were started, cycling all magnets.

10h10 HV is ON

10h14 Going to 70 MeV

10h44 Beam is in the ring W/O RF, 70 MeV

Manual ring shifter set to 6124 RF 50 kV

11h56 Ring RF set to 100 kV RF phase 17.5 dg.

13h34 Good receipt  recipe_recipe_LI_TL_RI_good_20251212_13_56_38.txt copied to references as 70_MeV_Vert_tune 0.66_good_20251212_13_56_38.txt

Rf gun phase 239 dg., Sect. Att. 0.18 dB, Phase 243 dg., TL/BPM2 X=-1mm,  linac correctors H [1.0 -3.32], V [-2.02 2.10], Charges: -85, -81, -82, 84, -82 pA, Laser Att.  281.

MRSV fills the all slit. Storage up to 100%

14h10 ==> 50 MeV Manual phase shifter value set to 4876. Sect. temperatute set to 30C (clarinette, consigne = 29.2C).

14h39 Beam is in the ring.

14h40 HV on standby, Cycling all magnets.

15h08 HV is ON Receipt: recipe_recipe_LI_TL_RI_good_20251125_16_42_01.txt. Copied to references: 50_MeV_good_tune_0.17_0.7_20251212_16_03_54.txt

MRSV size at 50 MeV down to 23 pix.

Studies Model_real Machine for the ring. Data to be analyzed.

17h07 Stop ThomX

8h37 Warm-up ThomX: Modulator, Laser, Fridge

8h44 Chillers were started, cycling all magnets.

9h49 HV is ON

9h59 Can not see beam charge and cameras

10h37 Cameras are OK, ISTs are not.

10h38 Beam is in the ring at 50 MeV, all seems OK. Transition to 40 MeV

10h52 receipt from recipe_recipe_LI_TL_RI_all_20251209_17_54_51.txt

RF Gun phase  241 dg., Sect. phase 200 dg. Sect. Att. 3.82 dB, Linac steerers: H [0.87 -3.27], V [-3.0 3.63], Charges (BPMs):  -111, -107, -107, -104, 98 pC

11h03 Beam is in the ring

Orbit correction. Optimization of the beam. The beam size at MRSV is about ~25 pixels.

The orbit is correction with a reasonable beam storage. (see the screenshot).

A short run wiht the X-rays thanks to Ronic.

The beam is very unstable. To minimize the syncrotron oscilations it is often neseccary to adjust RF cavity phase, sect. Att. value end section phase

14h15 HV on standby

16h18 HV is ON

17h10 Stop ThomX

8h30 : machine started on remote
50 MeV operation.
Problem with Yag-TL camera
--> try power off
Worked
Ajusterment retard camera : -20 µs / Gain 0 / exp 0.001s

Viktor : dispersion measurement.

Q-scan QP7, QP3