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.