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

08h37 Chilers were started, cycling all magnets

09h38 HV is ON

The receipt loaded: recipe_recipe_LI_TL_RI_all_20251023_14_56_13

10h16 The beam is in the ring. RF Gun phase 233 dg., Sect. phase is 200 dg., Att. 2.34 dB,  linac steerers: H [0.75 -2.98], V [-2.63 3.25], Charges: -101, -100, -102 -102 pC (from BPMs), TL/BPM02 X= -3, RF cavity 100 kV, phase 14 dg.

11h18 Laser feedback was reset.

phases were reset RF Gun 256 dg. Sect. 211 dg. RF Cav. 9.5 dg.

Scanning TL/QP3 at QP1=QP2 = 0

Scanning TL/QP3 at QP1= -0.17 A, QP2 = 3.5 A

Scanning TL/QP1 at QP2=QP3 = 0

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

08h45 Chillers were started, cycling all magnets

09h45 HV is ON

09h49 HV was set to 1215 V

10h15 the receipt recipe_recipe_LI_TL_RI_all_20251023_12_06_10.txt was loaded, linac phases, section attenuator and steerers was adjusted

10h20 The beam is in the ring W/O RF. RF Gun phase 215 dg., Sect. phase 207 dg., Sect. Att. 2.47 dB, TL/BPM02 X=-2mm, Laser Att. 274,Charges (BPMs) -110, -109, -80, -80 ???

10h33 Data taking for different TL/BPM02 X

10h50 RF 100 kV, Phase 11 dg. YL/BPM02 x=-3 to -4 mm, Very good storage, but losses in the TL,  Check alignment

11h11 RF gun phase 202 dg. Secr. phase 206 dg. RF phase 3.5 dg. All charges are about -100 pC

11h27 TL/BPM02 X ==> 0 mm to minimize Sync. osc. Hor. Tun 0. 159

11h41 Hor. tun ==> 0.169

11h56 BBA

12h21 RF Gun phase ==> 207 dg.

12h32 Hv was set on standby

13h44 HV is ON

14h14 RF Gun phase ==> 211 dg.

16h52 Stop ThomX

08h17 Warm-up ThomX: Modulator, Laser, Fridge

08h24 Chillers were started, cycling all magnets

09h18 HV is ON

09h21 HV 1215 V

The receipt recipe_recipe_LI_TL_RI_all_20251023_12_06_10.txt was loaded, linac phases, section attenuator and steerers were adjusted

10h10 RF Gun phase 202 dg., Sect Phase 206 dg., Sect. Att. 2.57 dB, Linac steerers: H [0.61 -2.91], V [-2.63 3.21], Laser Att. 274, Charges (BPMs): -94 -94 -97 -97 pC TL/BPM02 X = -1 mm

10h20 Beam in the ring. RF cavity 100 kV, phase 6.5 dg. 

the receipt saved: recipe_recipe_LI_TL_RI_good_20251030_10_50_55.txt

The good receipt saved to references 50MeV_last....

17h10 Stop ThomX

Shift Program

• Start the Archivage OK

• Align 50 MeV beam in QP1 QP3 with Kevin script

• TL_bpm2 : adjust espread and put beam at x=0

• Store the beam in the ring with an orbit as flat as possible around the IP

• Make a vertical FPC scan - Then put the table at maximum OK

• Align the CdTe spectro on the on-axis position, approximatively by eyes with the Photonic science camera ==> take a spectrum OK

• Change gun phase only  OK

• Change section attenuator only ==> idem (positive, "nominal", negative, "nominal") ==> 4 spectra  OK

• Change the section phase only ==> idem ==> 4 spectra  OK

08h34  Warm-up ThomX: Modulator, Laser, Fridge

08h40 Chillers were started, cycling all magnets

09h40 HV is ON but cannot trig because the interlock on low SF6 pressure. Assistance asked.

10h40 Modulator set to standby, because nobody responded.

SF6 pressure was fixed.

14h00 Beam started. The laser iris was set to 2 mm because at 1.3 mm beam was with two cores at the linac exit.

Receipt used: all_20251106_13_58_04

RF gun phase 233 dg. Sect. phase 211 dg., Motor position of the sect. Att. about 1700 steps to get 50 MeV. Charges (BPMs):  -110 pC, -110 pC, -113 pC, -113 pC. Do not use calc/li/hfi/att.01-mot.01 to adjust section RF power in dB, use li/hfi/att.01-mot.01 instead.  Level of a signal from the section output should be about -0.125 V at 50 MeV.

14h16 Beam is in the ring, RF 100 kV. TL/BPM02 X=-1mm.

BBA for a vertical direction.

BPM V [1 1] V offset = -0.054 mm

BPM V [1 6] V offset = 0.165 mm

BPM V [1 7] V offset = 0.025 mm

BPM V [1 12] V offset = 0.366 mm

16h29 Stop ThomX

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

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

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

7h50: mise en chauffe en remote de la machine (laser, frigo/chiller, cyclage)

==> le modulateur ne répond pas aux commandes (il est peut être en local) ==> Ok le modulateur était bien en local (Maher est intervenu)

*** intervention laser (9h 11h) ***

* Pas de perte particulière sur la ligne observée, le faisceau  ne semblait pas non plus avec une forme dégradée. 

* nettoyage des optiques dans la salle laser, ajustement du téléscope de la casemate (pas d'effet notable mise à part une perte d'intensité sur la caméra sans perte de puissance côté canon)

** Mesure Laser PC **

- Sortie Laser: 250 uJ (en baisse)

- Injectée ligne transport: 235 uJ

- Sortie ligne transport: 188 uJ

- Sortie Iris (ouverture max): 175 uJ

- Injectée canon (iris max, 420 pas atténuateur): 105 uJ 

- Sortie iris (1.3mm): 51 uJ

- injectée canon (iris 1.3 mm, 420 pas) : 43 uJ

9h Intervention laser

Intervention pour realignement el/dg/sst.01

11h Fin interventions demarrage machine

12h Quad scans

14h Measures TL

16h Stop ThomX

8h: mise en chauffe en remote (modulateur, frigo/chillers, laser, cyclage)
9h: start 
Recette chargée: 50MeV_100pC_MRSV_20251014_18_22_53

10h30: entrée casemate pour CFP

==> mauvais stockage ==> on charge la dernière recette : recipe_recipe_LI_TL_RI_all_20251107_16_22_24

Stockage bon - anneau stable - FPC totalement instable toute la journee

*** Mesure taille X-rays methode fente 1

*** Manip fluo
Spectre calib det Sn foil
Spectre echantillon prostate - feuille Sn sur prostate - X-rays sur support echantillon
Ensuite, spectre idem mais X-rays sur feuille Sn
Ensuite, feuille Sn retiree, spectre sur prostate (on pense ...) - 2 positions faiseau (la 2eme un peu plus centree)

Spectre rouleau fil a souder

 *** Streak : cablage, phases a tuner

- câble refait sur la streak. Prise de donnée sur l'injection du faisceau sur 20 ms, et 1 ms autour de l'injection (avec et sans extraction du faisceau au bout de 10ms)

- reste à affiner la mesure (trig de la streak sur le pulse suivant)

**** Programme TP ****

- mesures rayons-X: fluorescence et mesure taille faisceau "edge methode", radiographie peut être

- mesure streak injection

9:15 Mise en chauffe

9h30 Arrivée du SPR: testsSSI ce matin => pas de faisceau avant midi => machine off

12h30 Mise en chauffe,cyclage aimants

13h10 Demarrage

Claquage a 1200V.

13h30 Faisceau

ND : ajustement de cameras

Soleno Scan

Mesure emittance @soleno

09h31 Warm-up ThomX: Modulator, Laser, Fridge

09h36 Chillers were started, cycling all magnets.

09h56 Unable to start MRSV and EL cameras. Need help.

10h33 HV is ON

10h40 HV set to 1215 V

11h24 Beam in the ring W/O RF

11h40 RF 100 kV, phase 3.7  dg. RF Gun phase 210 dg., Sect Att. 2.37 dB, Sect. phase 211 dg., Charges (BPMs) -161, -153, -158, -169 pC, Linac steerers H [0.88 -3.00], V [-2.52 3.08]. Receipt recipe_recipe_LI_TL_RI_good_20251106_16_23_16.txt

12h35 Vacuum interlock V1, restarted

Orbit correction, check with BBA and LOCO after adjusting the device indeces in MML.

16h46 Going to 70 MeV T sect. consigne 28.5ºC, Sect. Att. 0.137 dg., DP 255.8 A, TL/BPM02 X=-1.5 mm, 

As it was discussed before, the dipoles for unknown reasons were set to - 2A from nominal current in the saved receipt. We changed the current to the nominal one. Beam tuning ongoing for 70 MeV.

recipe_recipe_LI_TL_RI_good_20251125_18_31_45.txt W/O correctots in the ring, Manual phase shifter 6129, RF phase 14 dg.

to be continued.

18h40 Stop thomx

7h50: mise en chauffe à distance (frigo/chiller, laser, modulateur, cyclage)

11h13 Beam is in the ring, 50 MeV, RF gun phase 268 dg. ==> 272 dg., Sect. phase 211 dg., Sect. Att. 2.35 dB. Linac sreerers H [0.74 -2.98], V [-2.56 3.0], Charges (BPMs) -112, -107, -112, -110 pA 

16h: essaye de la recette "Mad180" pour injection dans l'anneau. Impossible car pas de charge transmise sur l'ict3

17h: changement solénoïde 180 --> 230A, on a un peu de charge transmise (70pC pour 100pC). +1A sur QP5 afin d'avoir un faisceau focalisé sur TL/BPM.03. Injection faible possible mais très sensible à la sortie linac (après 2 min plus de charge transmise ==> ligne trop fermée)

*** Spectres a differentes valeurs de bpmTL2_X, et avec la meme orbit a l'IP

bpmTL2 =  0 (~ 11h55)
spectre

bpmTL2 = - 4 (~ 12h00)
spectre
Image fente 1 ==> Taille source X : X = 310 , Y = 51 

bpmTL2 = - 2 (~ 12h17)
spectre
Image fente 1 ==> Taille source X : X = 179 , Y = 45 

bpmTL2 =  0 (~ 12h24)
spectre
Image fente 1 ==> Taille source X : X = 201 , Y = 58

bpmTL2 = + 4 (~ 12h35)
spectre
Image fente 1 ==> Taille source X : X = 170 , Y = 67

bpmTL2 = + 2 (~ 12h45)
spectre
Image fente 1 ==> Taille source X : X = 268 , Y = 62

bpmTL2 = 0 (~ 12h53)
spectre
Image fente 1 ==> Taille source X : X = 234 , Y = 53

** Spectre pris a differentes positions de detecteur

** Mesures avec diode calibree

~ 13h56 : diode alignee dans le faisceau (au centre, a la louche) - Fente2 : H = + 2 , V = - 11

Quelques deplacements dans le faisceau :
   fente2 : H = + 2 ;  V = - 11 ( ~ 14h55)
   fente2 : H = + 2 ;  V = - 21 ( ~ 15h01)
   fente2 : H = + 10 ; V = - 21 ( ~ 15h05)
   fente2 : H = - 10 ;  V = - 21 ( ~ 15h07)

** Mesures longeur de paquet et injection

- Comparaison en fonction de la qualité du stockage:

   * mesure de la longueur pour l'anneau non optimisé (après dérive), il y a des oscillations synchrotrons (~4mm pic-pic), le stockage est pas stable

   * mesure de la longueur une fois l'anneau réoptimisé (énergie + 3° cavité RF)

- Comparaison taille faisceau VS amplitude cavité RF 

==> pas d'effet visible du FBL (il faut peut être l'ajuster)

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

Programme du jour : Spectres a differentes positon bpmTL2_X, avec meme orbite a l'IP

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

9h30: Chargement de la recette : "recipe_recipe_LI_TL_RI_all_20251126_09_35_14.txt" pour référence

ajustement energie linac et phase cavité RF pour réduire l'oscillation synchrotron.

10h43: prise de référence, dispersion -3cm

10h50: recette dispersion Viktor V1, dispersion -7.3cm

10h55: recette dispersion Viktor V2, dispersion +10.3cm

11h: essaie recette Julien, pas de charge transmise sur ict3. Faisceau très défocalisé et ligne trop fermée (très sensible aux petites variations pointé, énergie etc.)

11h30: essaie recette référence avec feedback injection ring

11h50: recette dispersion Viktor V3, dispersion -9.5cm

12h: effet stockage sur faisceau,

   1) le faisceau est stocké avec la recette de référence, optimisé avec la phase cavité RF et l'energie ==> faible oscillation synchrotron mais stockage instable (grosses pertes en fin de stockage)

   2) le faisceau est optimisé pour augmenté la qualité du stockage. Faible jitter d'injection et stockage stable (sans perte) mais grosses oscillations synchrotron

Les deux mesures de longueur de paquet montre qu'un mauvais stockage peut permettre d'avoir un meilleur faisceau en longitidinale alors qu'un bon stockage peu vite dégrader le faisceau. QUESTION: est ce uniquement en lien avec l'oscillation synchrotron ? Est ce que le fait que le faisceau soit vite dégradé améliore la stabilité du stockage ?

===> Au final il ne semble pas y avoir un fort impact sur les jitters en fonction des différents points de dispersion. Le point à 11h30, est le point de référence refait avec le feedback d'injection anneau, il semble moins bon.

Sur l'image le point marque la valeur moyenne et la barre d'erreur l'écart type des 100 mesures (jitter), pour BPM.02-LIB.03 (BPM1) et BPM.04-LIB.03 (BPM3)

*** Mesures faites pour chaque points ***

- mean / std, de 100 acquisitions des positions BPM X et Y (des 12 BPM de l'anneau) pour le numéro  buffer (0, 14, 100, 500, 1000, 1999)

- Archivage mesure le stockage et autre donnée

- image de l'orbite en comparaison avec la référence

- image oscillations synchrotron

- image TBTsum 

*** Programme ***

Injection stability en fonction de la dispersion 100 pC :

Quantify injector stability vs. TL dispersion

Goal: Understand and minimize the shot-to-shot jitter at ring injection by tuning TL dispersion.

Workflow:

Vary dispersion in the TL in a controlled way (use > 5 optics settings).

For each dispersion setting:

• Measure horizontal and vertical jitter in the ring (turn-by-turn).
• Record injected charge, storage efficiency and orbit offset at injection.

Try to match TL dispersion to ring dispersion at injection and identify the setting that minimizes jitter.

Summarise the best TL dispersion setting and assign it as standard optics.

Deliverables:

Jitter vs. TL dispersion curves.

TL optics for minimum jitter.

Beam time: ~2 shifts.

*** après midi ***

- problème RI-C1 QP.05, problème : electrodes désoudées ==> ressoudées avec Jean-Noel.

- immersion recherche : quelques images de radiofraphie (portable, carte banquaire, baume à lèvre) ==> cavité extrèmement instable !

17h45 : Stop ThomX

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

08h31 Warm-up ThomX: Modulator, Laser, Fridge

08h36 Chillers were started, cycling all magnets.

10h07 HV is ON

10h09 HV set to 1215 V

10h330 Beam is in the ring 70 MeV

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.

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

Stockage 70MeV ok, le faisceau  MRSV semble gros en horizontal (cavité RF 250kV)

e-:

attenuateur section : 0.18dB

phase section : 252°

chiller: 28.4°C

Freq: 500.03165 MHz

phase shifter manuel : 4870

longueur paquet ~ 40ps 

cavité FP:

TZ: -1.75mm

phases 33MHz : [synchro, CFP] = [184° 343.5°]

phase 500MHz : 9.1V (negative)

17h: passage à 40MeV, steerer anneau à 0

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

cavité FP:

TZ: -1.75mm

phases 33MHz : [synchro, CFP] = [184° 300.6°]

phase 500MHz : 4.2V (positive)

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

X-rays :

** 70 MeV
Scan vertical FPC + Mesure taille source avec fente 1
Prises de spectres + calib feuille Pb et Au

** 40 MeV 
Prise de spectres + calib feuille Sn

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

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