8h05: mise en chauffe en remote (modulateur, frigo/chillers, laser, cyclage)

09h06 HV is ON

10h10 receipt recipe_recipe_LI_TL_RI_all_20260108_17_34_30.txt (242 A BMAD). RF gun phase 226 dg. Sect Att. 2.457 dB, sect. phase 214 dg. Laser att. 319 Charges: -127, -122, -127, -124 pC 

RF 100 kV, phase -7.5 dg, manual phase shifter 4497. TL/BPM02 x=-3 mm 

10h20 after the PSS interloc the modulator is running, but there is no any RF 

10h35 Kevin fixed it. HV is on 

11h37 receipt recipe_recipe_LI_TL_RI_all_20260107_17_19_00.txt loaded for Sol. 238 A BMAD

RCDS on injection receipt saved recipe_recipe_LI_TL_RI_all_20260109_11_52_26.txt

13h 41 Go to 242 A to measure the spectrum

The beam blow up is visible.

Optimization of the ring to find anther working point Tunes  0.145/0.7. The beam storage seems more stable, small MRSV 15/21 pixels New receipt: recipe_recipe_LI_TL_RI_all_20260109_14_44_42.txt

15h14 change to npminam point Isol = 230 A Optimization of the injection. MRSV 15/22 pixels

Measurement of the spectrum

15h40 optimization of the injector

Good storage and MRSV beam size is restored. X- ray flux is about 20 kpA

At every point the streak camera data is saved.

Taking the spectra

*** Results (all files in data shared, streak, PhotonicScience, spectrum) ***

An error was made during the source size measurement of the usual working point (230A), no beam size available for that recipe (from previous measurement e- [H,V] = [180, 120], to be confirmed)

--- Bunch length (cf. curve)

The preliminary analysis show that the bunch length seems to not be affected by the recipe used. The 230A recipe show a longer bunch but it is not very significatif due to the machine stability.

--- bunch size

242A (in the morning) : e- [H,V] = [141 um, 56 um]

242A (in the afternoon) : e- [H,V] = [154 um, 58 um] (same as in the morning)

242A after optimization : e- [H,V] = [107 um, 62 um]

238A : e- [H,V] = [161 um, 92 um]

--- Spectrum ==> divergence : to be done