Maher started the modulator

9h50 HV is on

09h53 Beam is in the ring w/o RF

10h30 Beam is in the ring with RF

The network is extremly slow on client 1. Impossible to start terminal or execute the commands. Client 2 is slow but still works. 

11h15 Beam is in the ring with RF at good frequency. Rigol is working properly. Thanls to Nicolas.

recipe_recipe_LI_TL_RI_all_20250321_12_30_52.txt loaded, Injection was adjusted. Ring dipole current set to 159.3 A (it was 160.4 A).  Beam has two pics at the extraction. Vertical orbit -2 to 2 mm around AP. After orbit correction just one pic.

13h57 Energy = 50 MeV, Laser Phase 101 dg., Sect. Phase 223 dg., Sect. Att. 2.49 dB, I_Gun -111.7927 pC, I_Linac -145.368 pC, I_TL -115.7221 pC RF_Ampl. 148.6391 kV, RF_Phase -38 dg.

Different ring settings were tested for lifetime.

18h24 ThomX was stopped

09h00 Start-up modulator, laser, fridge, chillers

After discussion with Daniele

Goal/Priority: Check for leakage in the FPC

10h17 HV is on, cycling all magnets. The chillers were not taking the set temperature (Consigne). It was necessary to reset it in the DS "RF Canon+Section"

10h24 The modulator set to standby. Check for leakage

11h00 ThomX was stopped

Hello,

I short-circuit the MPS input to modulator, we can trig modulator, the klystron filmant time goes to full time  , need 45 min, you can start at 14:35

Maher

10h02 Start-up modulator, laser, fridge, chillers

The SF6 pressure is low. Magnet power supplies filed to start.

11h17 Stop ThomX

Mesures après remontage de la cale : 1215 V sur le modulateur. ça tient mais encore des claquages dans le Canon à 0dB. Il faut faire travailler encore un peu demain. 

la suite demain

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

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

08h56 HV is on

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

OK it was fixed

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

10h06 RF 100 kV, phase -45 dg.

10h30 interlocks even at sect. att. 0244 dB

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

11h57 laser phase jumped to 18 dg.

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

18h10 ThomX was stopped

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

9h00 HV is ON

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

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

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

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

20h52 Thomx was stopped

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

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

08h37 Chillers were started, cycling all magnets

09h48 HV is ON

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

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

18h27 ThomX was stopped

The code for laser alignment does not work properly --> done by hand 
H 5.244
V 4.654

phiMax section = 224 

position change (yag screen in pixels)  vs delta phase 

Sole 230: 

Eps X: 

  emit_norm  : 1.3682 mm.mrad
  beta       : 19.51 m
  alpha      : -6.673

Eps Y: 

emit_norm  : 1.7366 mm.mrad
  beta       : 10.60 m
  alpha      : -3.606
 

Scan_QP0118h01.mat : 230

Scan_QP0118h09.mat : 240

Scan_QP0118h22.mat : 235

Scan_QP0118h26.mat : 225 

Scan_QP0118h31.mat : 235 : 

Scan_QP0118h31.mat : 235 : gain 0 

Scan_QP0118h36.mat : 240  : Gain 0 

18:40 stop

08h25 Warm-up ThomX: Modulator, Laser, Fridge

08h33 Chillers were started, cycling all magnets.

09h31 HV is on. Vacuum: Li/Vac1 4e-9, Li/Vac2 3e-9, Li/Vac3 3e-9, Li/Vac4 1e-9

09h33 Sect. Att. 30 dB, RF Gun Att. 20 dB, HV 1030 V Interlock

09h39 Sect. Att. 30 dB, RF Gun Att. 20 dB, HV 1050 V Interlock. Something wrong

10h20 HV 1050 V. Maher is here. Interlock by reflected power to the klystron.

10h26 Modulator is on standby.

10h29 HV is on W/O RF. HV 1215 V. All is OK.

10h34 Modulator is on standby.

10h57 HV is on, 1030 V

11h09 HV is  1050 V

11h35 50pps, 1030V

11h42 1040 V interlock

11h45 Modulator is on standby.

16h10 Stop ThomX

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

- Pour les atténuateurs : les butées ont été trouvées, ATT02-MOT01 c'est la canon, ATT01-MOT01 c'est la section.

- Des difficultés ont été rencontrés avec le modulateur : Interlock à cause de l'eau, interlock alim HT, reboot modulateur et vérification de l'autorisation de tir MPS faite.

Le modulateur fonctionne maintenant sans problèmes à une tension de 1240V et un vide klystron de 1.2 uA qui devrait diminuer par la suite. Les mesures radioprotection ont été faites

- Pour le MPS, cliquez sur Paramètres en bas de l'écran principal puis vérifier que LINAC est on.

Pour demain :

- Démarrer régulation eau en plus du modulateur

- Vérifier les signaux RFs sur oscillo et Réglage des retards (demarrage_delays)

- Ne pas mettre beaucoup de puissance, vérifier la chaine RF et vérifier les atténuateurs

- Vérifier caméra et ICT

Capture ecran modulateur

Contrôle radioprotection en cours HT = 1240V tension max, vide klystron : 1.2 uA

Modulateur OK, HT = 500 V en trig

Sur le MPS, Vérifiez qu'on est bien en PARAMETRES/ Linac pour autorisation HV sur modulateur

Modulateur remis en chauffe car interlock

ATT02-MOT01 attenuateur canon en butée à -8 jusque 3329

ATT01-MOT01 atténuateur section course de -870 step à 2485 pour les butées