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  Toutes les notes concernant les Commissionning de ThomX  Not logged in ThomX    logo
Message ID: 1252     Entry time: Fri Jun 26 08:27:22 2026
 Author: IC, VM 
 Status: Under Process 
 Type: Problem 
 Category: LI | TL | LE | Ring | Diag | Aimants | CC | Infra | Laser | Opt | RF Anneau | MECA | SY | Vide | Electronique | Linac Commissionning | Ring Commissioning 
 Important:
 Subject: Restart of the accelerator 
 Icon:  

08h26 Start-up modulator, laser, fridge, chillers, cycling

09h31 Low SF6 pressure => JN helped

11h HV ON. We do not see the RF signals, even  the baselines (RedPitaya). The Wevecatchers are also not triggered. probably problem with timing or their configs. Help is needed !!!

Apparently, there was the electricity cut. Help is also needed with the RF cavity.

12h10 something happened. Modulater went to OFF, dipoles are in error state. The valves became orange on the PSS screen.  

Problem with Air Comprime => Solved !

JN et Maher heped to start again the Air Comprimee.

Mochamed fixed RF amplifier, but it gives only 10.7 kV.

Power supply of WAC3 is dead.

16h00 We had another problem (see photo).

16h15 The problem with valves was fixed

16h17 HV on

16h22 The RF gun's ICT was too low. Solution - increased the RF gun's attenuator to 1 dB, then returned it to 0 dB. Dark current corresponds to 15 mV

16h35 Solenoids are off (external error). the RF Gun IST shows 100 pC (Laser phase of 99 degrees). the section exit ICT shows 20 pC 

16h52 ThomX was stopped

17h18 It seems resetting the red pitaya does not help

 

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