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
|