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  Toutes les notes concernant les Commissionning de ThomX, Page 5 of 62  Not logged in ThomX    logo
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  1155   Fri Nov 21 08:02:04 2025 KD MJ DN StudentsUnder ProcessShift summaryLinac Commissionning | Ring Commissioning shift du 21 novembre 2025 

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

Attachment 1: IMG-20251121-WA0003.jpg
IMG-20251121-WA0003.jpg
Attachment 2: IMG-20251121-WA0005.jpg
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Attachment 3: 20251121_185206.JPG
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  1154   Thu Nov 20 09:26:33 2025 VM, ICUnder ProcessUrgentLI | TL | LE | Ring | Diag | Aimants | CC | Infra | Laser | Opt | RF Anneau | MECA | SY | Vide | Electronique | Linac Commissionning | Ring Commissioning BBA Ring 

Goal: Ring BBA

09h14 Unable to start thomx. Need help. Probably problem with cooling water.

12h35 Warm-up the modulator, Chillers started

12h42 Cycling all magnets

12h57 It seems that leds at LI/SST1 and TL/SST1 are ON. icon8.gif. Fix. IHM ==>'Camera Power'==> 'Power 3'

13h42 HV is ON

14h06 Strange situation: the modulator works, but there are no radio frequency signals (see the screenshot).

15h46 Maher fix it. HV is ON

16h16 the modulator works, but there are no radio frequency signals

Need help from Maher to restart the pre-ampli.

16h34 Up to now, the beam was transported only till TL/SST.02. Very often we observed interlock (something happen in the IGLOO ?). After this probably the pre-ampli stopped operating. This is our observation. Moreover, several mistriggers.

For the RF cavity, there is  the problem to set the Voltage. It can be done only manually by Mohamed.

The control of the iris thouth the ELLO com4 does not work. It says "COM4 not available".

Shift program even has not started.

16h54 STOP

 

 

 

 

 

 

Attachment 1: Errors.jpeg
Errors.jpeg
Attachment 2: Screenshot_from_2025-11-20_14-04-53.png
Screenshot_from_2025-11-20_14-04-53.png
  1153   Wed Nov 19 10:43:41 2025 HG + JM + ND (aprem)Under ProcessInfoLI | TL | LE Shift mesure Twiss + Simu icon1.gif 

8:30 : demarrage à distance 
 

12:10 : QP7 Scan 1 (Phase section 210) optimum sur ligne dispersive 
12:12 : QP7 Scan 1 (Phase section 213) largeur spot diminue 
12:15 : QP7 Scan 1 (Phase section 215) largeur spot Augmente  

Distribution du laser donne un faisceau avec plusieurs coeurs (sur QP7 etc ou lors de quad scans).

comparaison taille sur écrans aux prédictions de BMad. 
ensuite : nouvelle lattice "Bmad" appliquée sur ThomX --> "Mac" -->    recipe_recipe_TL_all_Mac_20251119_18_02_10.txt  
Mac : car dispersion Bmad "matchée" à l'anneau en M .... 

enlightenedBMad fichiers mis à jours sur /data/shared

Suite à faire :

- Mesurer la dispersion. 
- comprendre pourquoi en Y on n'est pas très bon (QP7) 
- revoir les mesures de twiss : les distributions ne sont pas très bonnes pour le quad scan 

 

 

Attachment 1: TLSST1_noQuads_Simu.png
TLSST1_noQuads_Simu.png
Attachment 2: TLSST1_NoQuads_beam.png
TLSST1_NoQuads_beam.png
Attachment 3: TLSST1_quads_Simu.png
TLSST1_quads_Simu.png
Attachment 4: TLSST1_With_Quads_beam.png
TLSST1_With_Quads_beam.png
Attachment 5: TLSST1_quads_Q7_Simu.png
TLSST1_quads_Q7_Simu.png
Attachment 6: TLSST3_Mac_Receipt_Simu.png
TLSST3_Mac_Receipt_Simu.png
Attachment 7: TLSST3_Mac_Reciept_Beam.png
TLSST3_Mac_Reciept_Beam.png
  1152   Tue Nov 18 11:11:33 2025 HG, JM, NDUnder ProcessShift summaryLI Prise de données 18/11 

9h Intervention laser

Intervention pour realignement el/dg/sst.01

11h Fin interventions demarrage machine

12h Quad scans

14h Measures TL

16h Stop ThomX

 

 

  1151   Tue Nov 18 07:56:42 2025 KDUnder ProcessShift summaryLinac Commissionning shift du 18 novembre 2025 

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

Attachment 1: 2025-11-18_10_56_51_li_op_las_02_RAW.png
2025-11-18_10_56_51_li_op_las_02_RAW.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

 

  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

  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

 

  1147   Fri Nov 7 18:45:54 2025 Entered by Super Team from 134.158.205.4 on Fri Nov 7 18:45:38 2025Under ProcessShift summaryLinac Commissionning   

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

  

Attachment 1: Screenshot_from_2025-11-07_16-24-10.png
Screenshot_from_2025-11-07_16-24-10.png
Attachment 2: Screenshot_from_2025-11-07_16-24-35.png
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Attachment 3: Screenshot_from_2025-11-07_16-23-58.png
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  Draft   Thu Nov 6 08:30:52 2025 Entered by Super Team from 134.158.195.141 on Thu Nov 6 08:30:37 2025Under ProcessUrgentTL | LE   

08h30  Warm-up ThomX: Modulator, Laser, Fridge

08h36 Chillers were started, cycling all magnets

09h33 HV is ON 

09h34 HV set to 1215 V RF Gun phase is 188 dg.

11h09 Help needed! Something is wrong with the TL bends.

11h44 Something is wrong with the section attenuator. Reducing the attenuation results in a decrease in the section's output power.

12h15 OK, finally we got  it. RF Gun phase 182 dg. Sect. phase 298 dg. Sect. Att. 0.59 dB, 50 MeV, Li/HFI/ATT.01-MOT.01 ==> 311 steps Sect. Output -0.123 V

Sect. Output -0.123 V Mot. pos. 1699 steps but Sect phase = 211 dg. Calc/Li/HFI/ATT.01-MOT.01 is not working properly.

12h31 Beam is in the ring W/O RF

12h35 RF 100 kV

BBA Hor.

BPM Ind.  Offset

[1 1] ==>-0.129

[1 2] ==>0.017

[1 3] ==>-0.722

[1 4] ==>0.425

[1 5] ==>-0.022

[1 6] ==>-0.139

[1 7] ==>0.091

[1 8] ==>0.272

[1 9] ==>0.375

[1 10] ==>-0.022

[1 11] ==> -0.272

[1 12]  ==> -0.400

Attachment 1: SectOutput20251030.png
SectOutput20251030.png
Attachment 2: SectOutput20251106.png
SectOutput20251106.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

Attachment 1: Screenshot_from_2025-11-05_17-49-33.png
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Attachment 2: Screenshot_from_2025-11-05_17-51-14.png
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Attachment 3: Screenshot_from_2025-11-05_17-50-44.png
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  Draft   Thu Oct 30 07:21:22 2025 Entered by Marie Jacquet from 134.158.205.9 on Thu Oct 30 07:21:05 2025Under ProcessShift summaryLI | TL | LE | Ring Programme shift (X-rays spectres vs atte & phases) 

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

in positive direction   ==> take a spectrum
return to "nominal"      ==> spectrum
in negative direction ==> spectrum
return to "nominal"      ==> spectrum
  • Change section attenuator only ==> idem (positive, "nominal", negative, "nominal") ==> 4 spectra  OK

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

To not be affected too much by the motor hysteresis and by the boucle d'eau, "nominal" means that the beam has to return to its previous X position on TL_bpm2

  Draft   Tue Oct 28 08:40:22 2025 Entered by Super Team from 134.158.195.141 on Tue Oct 28 08:40:06 2025Under ProcessShift summary    

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

Attachment 1: Screenshot_from_2025-10-28_11-48-31.png
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Attachment 2: Screenshot_from_2025-10-28_11-47-12.png
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Attachment 3: Screenshot_from_2025-10-28_11-46-55.png
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Attachment 4: Screenshot_from_2025-10-28_15-34-03.png
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  Draft   Fri Oct 24 08:33:30 2025 Entered by Super Team from 134.158.195.141 on Fri Oct 24 08:33:07 2025Under ProcessShift summary    

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

 

 

  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)

 


 

 

 

  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
  1139   Fri Oct 17 09:07:03 2025 MO VC ND VM Shift summaryLI | TL | LE | Linac Commissionning Shift summary 

demarrage machine 8H35
9H45 hV on 1215V
Q linac 100pC
Recherche du faisceau dans la TL sans le ring =>pas trouvé
mesure OTR
12:17 Intervention de 3 personnes de Dalkia dans la X hutch (ils disent que c'est a la demande de Kevin)

Apres-midi: optimisation anneau et EL

17:00 arret

  Draft   Thu Oct 16 07:37:52 2025 KD, IC, VMUnder ProcessShift summaryLinac Commissionning | Ring Commissioning shift du 16 octobre 2025 

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

==> impossible de passer en Standby sur le modulateur ==> mail envoyé à Maher.

8h30 We inspected the modulator, made the rondes. The error (status 8 bit) remains. Need for help from Maher. problem: Modumator PSS.

09h12 Maher started the modulator (there was problem with cooling)

10h30 HV is ON

10h44 RF Gun phase is 228 dg Laser Att. 280, Charge device does not work properly

11h18 RCDS on injection, Beam is in the ring

11h20 Modulator went to OFF then start to warm-up

The RF cavity DS  can not read ring RF frequency

12h28 HV ON

Restarting the beam

Working on the WP 50 MeV, orbit correction after dipole rotation. Recette:

TL and EL tuning and measurement of the energy spread.

Beam cut issue in EL investigations.

Optics studies. LOCO.

19h50 STOp THOMX

Attachment 1: Screenshot_from_2025-10-16_19-07-23.png
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Attachment 2: Screenshot_from_2025-10-16_18-49-04.png
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Attachment 3: EL_EnergySpread.png
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Attachment 4: Screenshot_from_2025-10-16_19-11-13.png
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Attachment 5: Screenshot_from_2025-10-16_19-20-55.png
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Attachment 6: TL_EnergySpread.png
TL_EnergySpread.png
  1137   Tue Oct 14 08:00:18 2025 KDUnder ProcessShift summaryLinac Commissionning | Ring Commissioning shift du 14 octobre 2025 

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

==> Nouvelle interface de cyclage, on ne voit plus la progression ou l'état des éléments. (impossible de savoir si le cyclage à bien fonctionné)

10h: recette chargée 50MeV 20251010_15_48_41

Commentaires machine :

* pour un bon stockage l'énergie n'est pas bonne (157.3A sur TL/DP pour etre à 0 TL/BPM.02), position vertical TL/BPM.02 ~ -4mm (stockage possible avec +- 2A sur TL/DP)

/!\ l'orbite n'est pas "flat" à l'IP (comparaison avec chargement de la recette "50MeV_100pC_flatVERTorbit_withEL_20250717_10_58_38.txt"), l'orbite n'est plus "plate" avec l'ancienne recette. 

* probleme dans la EL, le faisceau n'est pas extrait correctement avec la nouvelle recette. 

/!\ probleme BPM/EL, le BPM n'affiche plus la position du faisceau !

* comparaison orbite du matin et de l'après midi, l'orbite change en X pas en Y.

* décalage du délais septum de 4us pour mettre l'impulsion des kicker à peu pres au sommet de l'impulsion ==> il faut désendre le septum de ~ 2V dans ce cas (97.13V --> 95.33V)

** recette sauvée sous : 50MeV_100pC_MRSV_20251014_18_22_53

 

* mise à jour du DS "DS_Ring_RF" pour faire les changement de fréquence anneau et phase au meme endroit.

 

*** Prise de donnée ***

- échantillon chocolat : le plus riche en Cd ne fait pas appaitre de pics !

- Nb présent dans échantillon d'un patien "sain". 

 

Attachment 1: Capture_d’écran_2025-10-14_075918_IHM_cycling.png
Capture_d’écran_2025-10-14_075918_IHM_cycling.png
Attachment 2: BPM_p2A_TL_DP.png
BPM_p2A_TL_DP.png
Attachment 3: orbit_20251014_10h00.png
orbit_20251014_10h00.png
Attachment 4: orbit_20251014_VS_flatorbit_20250717.png
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Attachment 5: extraction_BPM.png
extraction_BPM.png
Attachment 6: probleme_BPM_EL.png
probleme_BPM_EL.png
Attachment 7: kickers_septum.png
kickers_septum.png
Attachment 8: orbit_20251014_18h00.png
orbit_20251014_18h00.png
  1136   Mon Oct 13 13:40:05 2025 HaygUnder ProcessInfoLinac Commissionning Emittance QP3  

QP3 scan

vary Soleno
Iris 1mm ATT 400 (150 pC)

 

 

 

ELOG V3.1.4-395e101