07h30 Start-up modulator, laser, fridge, chillers, cycling remotly

Vacuum in the FPC is still ~1e-7 (sometimes goes to ~7-8e-8);

No RF signals. The same problem.

Vacuum problem in the half ring; same as on Friday. Solved by Eric.

Problem with SEPTUM. It does not start.

RF cavity in the Ring can be se only to 10 kV. We can not set other voltage. Maher checked, probably the rror with profibus. Hep is needed.

10h30 starting the linac. Transport of the beam in the TL.

Cameras do not work corretly, so it is difficult to adjust the energy spread of the beam.

Septum problem prevents us to inject in the ring.

10h56 Energy = 50 MeV, Laser Phase 108 dg., Sect. Phase 220 dg., Sect. Att. 2.43 dB, I_Gun -71.6393 pC, I_Linac -69.4399 pC, I_TL -69.8472 pC RF_Ampl. 10.8122 kV, RF_Phase -48.5 dg.

11h JN is helping with the RF cavity

13h The problem with RF cavity is not solved, the reson why the voltage does not inrest and stays at 10 kV is not clear.

Maher with JN tries to solve the problem with SEPTUM,

13h20 Septum is OK now. Beam is in the ring w/o RF. recipe_recipe_LI_TL_RI_all_20260422_18_34_34.txt loaded

13h30 Laser Att. 340

13h33 Energy = 50 MeV, Laser Phase 108 dg., Sect. Phase 220 dg., Sect. Att. 2.52 dB, I_Gun -92.8156 pC, I_Linac -122.1748 pC, I_TL -95.4294 pC RF_Ampl. 0 kV, RF_Phase 0 dg.

14h Mistreggiring problem. Nicolas found that the IP address of Rigol changed.

The colleage from SOLEIL will come in the afternoon to see the problem with the RF cavity.
The PC in the control room (client 1 and 2) are very slow, not clear what is the reason.

15h17 Kickers off. TL/DP off. Energy = 50 MeV, Laser Phase 108 dg., Sect. Phase 220 dg., Sect. Att. 2.52 dB, I_Gun -102.5088 pC, I_Linac -99.2102 pC, I_TL -0.0013676 pC RF_Ampl. 0 kV, RF_Phase 0 dg.

I am trying to check the beam charge using TL/FC01. The cable from wac02/ch0 (A9 on cross-panel #xxx) was connected to the oscilloscope CH2 (impedance 1 MΩ). According to Vincent, the cable length is 31 m, and the capacitance is 2.5e-9 F. At the operating point, the dark current and the beam charged the cable (approximately 6 μs after triggering) to -35.69 mV. The dark current alone charges the cable to -13.7 mV (with the screen inserted). Therefore, the beam charge is Q=C*V=2.5e-9*22e-3=55e-12 C. With the screen inserted - DeltaV=22.7 mV. The first attempt to change the position of the beam does not increase this voltage significantly (but reduces it at large displacements). Reducing the solenoid current to 180 A increases the voltage on the cable, but the DeltaV remains almost the same: 23.3 mV (58 pC). Thus, there is a certain discrepancy between ICT measurements and result of these measurements that needs to be understood.

17h35 The RF resonator is now working. But the RF resonator DS does not show the frequency. It is necessary also to adjust the phase of the resonator.

17h43 ThomX was stopped

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

11h24 Energy = 50 MeV, Laser Phase 100 dg., Sect. Phase 223 dg., Sect. Att. 2.38 dB, I_Gun -79.2489 pC, I_Linac -115.1205 pC, I_TL -82.446 pC RF_Ampl. 44.5956 kV, RF_Phase -38 dg.

11h34 Energy = 50 MeV, Laser Phase 100 dg., Sect. Phase 223 dg., Sect. Att. 2.38 dB, I_Gun -80.0998 pC, I_Linac -115.3244 pC, I_TL -82.2752 pC RF_Ampl. 99.1184 kV, RF_Phase -38 dg.

12h09 Energy = 50 MeV, Laser Phase 102 dg., Sect. Phase 223 dg., Sect. Att. 2.39 dB, I_Gun -102.3736 pC, I_Linac -136.5331 pC, I_TL -104.5544 pC RF_Ampl. 99.1184 kV, RF_Phase -38 dg.

12h11 Laser Att. 410, Energy = 50 MeV, Laser Phase 102 dg., Sect. Phase 223 dg., Sect. Att. 2.39 dB, I_Gun -200.2588 pC, I_Linac -233.6895 pC, I_TL -201.9032 pC RF_Ampl. 99.1184 kV, RF_Phase -38 dg.

We checked the max charge from the gun it is 200 pC. The charge in the ring increased linearly when going from 100 to 200 pC in the linac:

Stop ThomX.

Afternoon will be dedicated for openning the valve in te FPC
 

07h50 Start-up modulator, laser, fridge, chillers, cycling remotly

recipe_recipe_LI_TL_RI_all_20260708_11_47_10.txt loaded, linac steerers adjusted

11h19 Energy = 50 MeV, Laser Phase 144 dg., Sect. Phase 236 dg., Sect. Att. 2.212 dB, I_Gun -309.3347 pC, I_Linac -334.7266 pC, I_TL -321.4742 pC RF_Ampl. 148.6391 kV, RF_Phase -39 dg.

11h56 Energy = 50 MeV, Laser Phase 142 dg., Sect. Phase 236 dg., Sect. Att. 2.212 dB, I_Gun -302.0497 pC, I_Linac -327.6407 pC, I_TL -313.6468 pC RF_Ampl. 148.6391 kV, RF_Phase -39 dg.

12h06 Energy = 50 MeV, Laser Phase 142 dg., Sect. Phase 236 dg., Sect. Att. 2.292 dB, I_Gun -98.2597 pC, I_Linac -127.0455 pC, I_TL -111.1903 pC RF_Ampl. 148.6391 kV, RF_Phase -39 dg.
 

12h02 Energy = 50 MeV, Laser Phase 142 dg., Sect. Phase 236 dg., Sect. Att. 2.292 dB, I_Gun -197.1194 pC, I_Linac -223.2824 pC, I_TL -208.7964 pC RF_Ampl. 148.6391 kV, RF_Phase -39 dg.
 

12h10 Energy = 50 MeV, Laser Phase 142 dg., Sect. Phase 236 dg., Sect. Att. 2.292 dB, I_Gun -99.7723 pC, I_Linac -129.51 pC, I_TL -112.1044 pC RF_Ampl. 148.6391 kV, RF_Phase -39 dg.
 

12h14 Energy = 50 MeV, Laser Phase 142 dg., Sect. Phase 236 dg., Sect. Att. 2.312 dB, I_Gun -52.0515 pC, I_Linac -81.6667 pC, I_TL -63.9639 pC RF_Ampl. 148.6391 kV, RF_Phase -39 dg.
12h22 Energy = 50 MeV, Laser Phase 141 dg., Sect. Phase 236 dg., Sect. Att. 2.312 dB, I_Gun -25.7925 pC, I_Linac -55.9377 pC, I_TL -37.2155 pC RF_Ampl. 148.6391 kV, RF_Phase -39 dg.
12h35 Energy = 50 MeV, Laser Phase 141 dg., Sect. Phase 236 dg., Sect. Att. 2.252 dB, I_Gun -96.7142 pC, I_Linac -127.1059 pC, I_TL -13.2029 pC RF_Ampl. 148.6391 kV, RF_Phase -37.5 dg.
12h56 Energy = 50 MeV, Laser Phase 136 dg., Sect. Phase 236 dg., Sect. Att. 2.252 dB, I_Gun -91.54 pC, I_Linac -120.9573 pC, I_TL -13.248 pC RF_Ampl. 148.6391 kV, RF_Phase -37.5 dg.

13h02 Energy = 50 MeV, Laser Phase 136 dg., Sect. Phase 236 dg., Sect. Att. 2.297 dB, I_Gun -94.3978 pC, I_Linac -124.5719 pC, I_TL -106.9085 pC RF_Ampl. 148.6391 kV, RF_Phase -39 dg.

13h10 Energy = 50 MeV, Laser Phase 136 dg., Sect. Phase 240 dg., Sect. Att. 2.283 dB, I_Gun -90.3928 pC, I_Linac -120.0552 pC, I_TL -96.6732 pC RF_Ampl. 148.6391 kV, RF_Phase -34.5 dg.
 

13h24 Energy = 50 MeV, Laser Phase 140 dg., Sect. Phase 236 dg., Sect. Att. 2.223 dB, I_Gun -329.6098 pC, I_Linac -356.3881 pC, I_TL -331.0561 pC RF_Ampl. 148.6391 kV, RF_Phase -37.5 dg.
 

13h28 ThomX was stopped

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

09h20 HV ON

board 0  Mean/1e3:  6016.12427481845
board 1  Mean/1e3:  7150.640201975506
board 2  Mean/1e3:  6435.57530431565
board 3  Mean/1e3:  6670.407085451412
board 4  Mean/1e3:  7137.518776401625
board 5  Mean/1e3:  7460.473674732291
board 6  Mean/1e3:  7695.513136574558
board 7  Mean/1e3:  7479.889186809958
board 8  Mean/1e3:  7136.4083112714625
board 9  Mean/1e3:  7068.591194013477
board 10  Mean/1e3:  6844.288026243153
board 11  Mean/1e3:  7860.848107228137

14h52 Energy = 50 MeV, Laser Phase 93 dg., Sect. Phase 233 dg., Sect. Att. 2.351 dB, I_Gun -203.1101 pC, I_Linac -232.7817 pC, I_TL -213.6872 pC RF_Ampl. 148.6391 kV, RF_Phase -40.5 dg.

10h41 Energy = 50 MeV, Laser Phase 101 dg., Sect. Phase 232 dg., Sect. Att. 2.333 dB, I_Gun -110.9471 pC, I_Linac -141.9733 pC, I_TL -122.212 pC RF_Ampl. 148.6391 kV, RF_Phase -39 dg.14h20 Energy = 50 MeV, Laser Phase 97 dg., Sect. Phase 235 dg., Sect. Att. 2.391 dB, I_Gun -142.919 pC, I_Linac -173.7389 pC, I_TL -154.451 pC RF_Ampl. 148.6391 kV, RF_Phase -39 dg.

11h46 Energy = 50 MeV, Laser Phase 101 dg., Sect. Phase 234 dg., Sect. Att. 2.302 dB, I_Gun -116.3631 pC, I_Linac -149.3982 pC, I_TL -128.4612 pC RF_Ampl. 148.6391 kV, RF_Phase -36 dg.
IBS stady

13h05 Energy = 50 MeV, Laser Phase 98 dg., Sect. Phase 233 dg., Sect. Att. 2.387 dB, I_Gun -24.1461 pC, I_Linac -57.7826 pC, I_TL -35.1707 pC RF_Ampl. 148.6391 kV, RF_Phase -36 dg.

board 0  Mean/1e3:  739.3766782525079
board 1  Mean/1e3:  780.2451087097668
board 2  Mean/1e3:  779.779834142101
board 3  Mean/1e3:  773.7344972429073
board 4  Mean/1e3:  797.2878380623423
board 5  Mean/1eboard 0  Mean/1e3:  2720.9837239722447
board 1  Mean/1e3:  3004.1350788710074
board 2  Mean/1e3:  2827.6892365760973
board 3  Mean/1e3:  2939.518733003569
board 4  Mean/1e3:  3056.6028286848423
board 5  Mean/1e3:  3246.323341153302
board 6  Mean/1e3:  3282.120510748354
board 7  Mean/1e3:  3382.764278555603
board 8  Mean/1e3:  3142.251151803188
board 9  Mean/1e3:  2975.5729069942768
board 10  Mean/1e3:  3187.324209269801
board 11  Mean/1e3:  3465.555448035264
3:  910.8358504138715
board 6  Mean/1e3:  907.0179200412333
board 7  Mean/1e3:  906.9522683149733
board 8  Mean/1e3:  876.155585126777
board 9  Mean/1e3:  833.7921748615299
board 10  Mean/1e3:  788.6377058880547
board 11  Mean/1e3:  906.5095737937719
13h31 Energy = 50 MeV, Laser Phase 98 dg., Sect. Phase 233 dg., Sect. Att. 2.387 dB, I_Gun -49.742 pC, I_Linac -83.8606 pC, I_TL -61.6128 pC RF_Ampl. 148.6391 kV, RF_Phase -36 dg.

board 0  Mean/1e3:  1482.6708244307342
board 1  Mean/1e3:  1655.17958309896
board 2  Mean/1e3:  1555.3765159502123
board 3  Mean/1e3:  1645.8777649009169
board 4  Mean/1e3:  1450.6833222936798
board 5  Mean/1e3:  1795.2294454812602
board 6  Mean/1e3:  1842.7491755077235
board 7  Mean/1e3:  1818.3187567927257
board 8  Mean/1board 0  Mean/1e3:  2720.9837239722447
board 1  Mean/1e3:  3004.1350788710074
board 2  Mean/1e3:  2827.6892365760973
board 3  Mean/1e3:  2939.518733003569
board 4  Mean/1e3:  3056.6028286848423
board 5  Mean/1e3:  3246.323341153302
board 6  Mean/1e3:  3282.120510748354
board 7  Mean/1e3:  3382.764278555603
board 8  Mean/1e3:  3142.251151803188
board 9  Mean/1e3:  2975.5729069942768
board 10  Mean/1e3:  3187.324209269801
board 11  Mean/1e3:  3465.555448035264
e3:  1746.0586420395102
board 9  Mean/1e3:  1648.6930596482862
board 10  Mean/1e3:  1666.6577783971322
board 11  Mean/1e3:  1912.7832125115392
13h44 Energy = 50 MeV, Laser Phase 97 dg., Sect. Phase 233 dg., Sect. Att. 2.387 dB, I_Gun -93.0275 pC, I_Linac -126.2433 pC, I_TL -106.5041 pC RF_Ampl. 148.6391 kV, RF_Phase -37.5 dg.
board 0  Mean/1e3:  2806.856625384639
board 1  Mean/1e3:  3179.7009038740844
board 2  Mean/1e3:  3006.574068698074
board 3  Mean/1e3:  2980.479724803065
board 4  Mean/1e3:  3096.417211936119
board 5  Mean/1e3:  3451.0181180041845
board 6  Mean/1e3:  3309.3577277309373
board 7  Mean/1e3:  3489.3210591836423
board 8  Mean/1e3:  3134.9546797526004
board 9  Mean/1e3:  2973.63203335436
board 10  Mean/1e3:  3013.4253815004004
board 11  Mean/1e3:  3486.13097371069

board 0  Mean/1e3:  2398.118579572589
board 1  Mean/1e3:  2714h20 Energy = 50 MeV, Laser Phase 97 dg., Sect. Phase 235 dg., Sect. Att. 2.391 dB, I_Gun -142.919 pC, I_Linac -173.7389 pC, I_TL -154.451 pC RF_Ampl. 148.6391 kV, RF_Phase -39 dg.
21.0218012462306
board 2  Mean/1e3:  2844.6954343621146
board 3  Mean/1e3:  2660.7731464720905
board 4  Mean/1e3:  3075.6970935996064
board 5  Mean/1e3:  3219.3843422010586
board 6  Mean/1e3:  3264.5689831605023
board 7  Mean/1e3:  3265.1781138162346
board 8  Mean/1e3:  3168.1944272416763
board 9  Mean/1e3:  2993.735220238169
board 10  Mean/1e3:  2730.1931717151824
board 11  Mean/1e3:  3140.919676678565

board 0  Mean/1e3:  2398.118579572589
board 1  Mean/1e3:  2721.0218012462306
board 2  Mean/1e3:  2844.6954343621146
board 3  Mean/1e3:  2660.7731464720905
board 4  Mean/1e3:  3075.6970935996064
board 5  Mean/1e3:  3219.3843422010586
board 6  Mean/1e3:  3264.5689831605023
board 7  Mean/1e3:  3265.1781138162346
board 8  Mean/1e3:  3168.1944272416763
board 9  Mean/1e3:  2993.735220238169
board 10  Mean/1e3:  2730.1931717151824
board 11  Mean/1e3:  3140.919676678565
 

board 0  Mean/1e3:  2663.0380782663547
board 1  Mean/1e3:  2976.405704618746
board 2  Mean/1e3:  2843.18037540464
board 3  Mean/1e3:  2918.46994465044
board 4  Mean/1e3:  3287.2213891885654
board 5  Mean/1e3:  3222.289987433073
board 6  Mean/1e3:  3507.668706652717
board 7  Mean/1e3:  3518.296483671303
board 8  Mean/1e3:  3118.909678117115
board 9  Mean/1e3:  3176.0107260446794
board 10  Mean/1e3:  3031.05302904948
board 11  Mean/1e3:  3432.35643753154
 

14h20 Energy = 50 MeV, Laser Phase 97 dg., Sect. Phase 235 dg., Sect. Att. 2.391 dB, I_Gun -142.919 pC, I_Linac -173.7389 pC, I_TL -154.451 pC RF_Ampl. 148.6391 kV, RF_Phase -39 dg.
14h21 Energy = 50 MeV, Laser Phase 97 dg., Sect. Phase 235 dg., Sect. Att. 2.391 dB, I_Gun -151.0063 pC, I_Linac -182.6333 pC, I_TL -162.8241 pC RF_Ampl. 148.6391 kV, RF_Phase -39 dg.
board 0  Mean/1e3:  4178.668023287587
board 1  Mean/1e3:  4415.403630551111
board 2  Mean/1e3:  4469.244714448581
board 3  Mean/1e3:  4638.046651196997
board 4  Mean/1e3:  4507.641695012
board 5  Mean/1e3:  4766.693627570927
board 6  Mean/1e3:  5188.3550342498
board 7  Mean/1e3:  4881.351093391901
board 8  Mean/1e3:  4669.1249240630195
board 9  Mean/1e3:  4371.4397666948735
board 10  Mean/1e3:  4474.910215948674
board 11  Mean/1e3:  5095.00682145209
 

14h52 Energy = 50 MeV, Laser Phase 93 dg., Sect. Phase 233 dg., Sect. Att. 2.351 dB, I_Gun -203.1101 pC, I_Linac -232.7817 pC, I_TL -213.6872 pC RF_Ampl. 148.6391 kV, RF_Phase -40.5 dg.
board 0  Mean/1e3:  5537.830176243154
board 1  Mean/1e3:  6284.811273792233
board 2  Mean/1e3:  5667.69053156348
board 3  Mean/1e3:  5684.9570600436955
board 4  Mean/1e3:  6127.946000880054
board 5  Mean/1e3:  6276.29173108499
board 6  Mean/1e3:  6874.280194445812
board 7  Mean/1e3:  6366.561194455044
board 8  Mean/1e3:  6101.151923372207
board 9  Mean/1e3:  6218.601126940119
board 10  Mean/1e3:  6310.149263988554
board 11  Mean/1e3:  6929.827564691673
 

15h20 Energy = 50 MeV, Laser Phase 93 dg., Sect. Phase 234 dg., Sect. Att. 2.351 dB, I_Gun -250.8662 pC, I_Linac -280.0719 pC, I_TL -262.221 pC RF_Ampl. 148.6391 kV, RF_Phase -40.5 dg.
I sol 235 A, receipt

board 0  Mean/1e3:  6016.12427481845
board 1  Mean/1e3:  7150.640201975506
board 2  Mean/1e3:  6435.57530431565
board 3  Mean/1e3:  6670.407085451412
board 4  Mean/1e3:  7137.518776401625
board 5  Mean/1e3:  7460.473674732291
board 6  Mean/1e3:  7695.513136574558
board 7  Mean/1e3:  7479.889186809958
board 8  Mean/1e3:  7136.4083112714625
board 9  Mean/1e3:  7068.591194013477
board 10  Mean/1e3:  6844.288026243153
board 11  Mean/1e3:  7860.848107228137
Adjusting

board 0  Mean/1e3:  6643.223419856607
board 1  Mean/1e3:  7550.0633688473135
board 2  Mean/1e3:  7155.790705758815
board 3  Mean/1e3:  7412.340510985292
board 4  Mean/1e3:  8043.103973923011
board 5  Mean/1e3:  8178.11101796726
board 6  Mean/1e3:  8264.046615868669
board 7  Mean/1e3:  8488.961554031019
board 8  Mean/1e3:  8252.168766817958
board 9  Mean/1e3:  7488.037506166534
board 10  Mean/1e3:  7604.18529628131
board 11  Mean/1e3:  9091.431039150102
 

15h56 Energy = 50 MeV, Laser Phase 94 dg., Sect. Phase 234 dg., Sect. Att. 2.381 dB, I_Gun -308.9683 pC, I_Linac -323.6297 pC, I_TL -285.2847 pC RF_Ampl. 147.0231 kV, RF_Phase -40.5 dg.
16h03 Energy = 50 MeV, Laser Phase 93 dg., Sect. Phase 234 dg., Sect. Att. 2.381 dB, I_Gun -299.1805 pC, I_Linac -318.517 pC, I_TL -298.6652 pC RF_Ampl. 143.3292 kV, RF_Phase -40.5 dg.

board 0  Mean/1e3:  7335.915029963383
board 1  Mean/1e3:  8563.309142770324
board 2  Mean/1e3:  8424.620043611914
board 3  Mean/1e3:  8722.417228374055
board 4  Mean/1e3:  8464.287584385193
board 5  Mean/1e3:  9212.292135842206
board 6  Mean/1e3:  9370.04771304388
board 7  Mean/1e3:  9787.571251650872
board 8  Mean/1e3:  9319.529923823005
board 9  Mean/1e3:  8211.148675764662
board 10  Mean/1e3:  8567.879598258354
board 11  Mean/1e3:  10270.448621533633

board 0  Mean/1e3:  7862.441381568096
board 1  Mean/1e3:  7613.980929111022
board 2  Mean/1e3:  6989.161951312389
board 3  Mean/1e3:  8714.446603152503
board 4  Mean/1e3:  7734.159882077359
board 5  Mean/1e3:  9614.625306634254
board 6  Mean/1e3:  9751.392453443288
board 7  Mean/1e3:  8322.69042234599
board 8  Mean/1e3:  7948.921343230353
board 9  Mean/1e3:  7500.397785328328
board 10  Mean/1e3:  7999.1639096682875
board 11  Mean/1e3:  8768.633434537509
 

16h37 Energy = 50 MeV, Laser Phase 93 dg., Sect. Phase 234 dg., Sect. Att. 2.381 dB, I_Gun -312.5291 pC, I_Linac -336.4305 pC, I_TL -309.9712 pC RF_Ampl. 138.5195 kV, RF_Phase -37.5 dg. Att. 420