08h53 Start ThomX

11h10 The oscilloscope installed in the bunker

11h11 HV is 'On'

11h45 The beam is in the ring

12h10 The modulator set to the Standby mode. Access to the bunker

12h24 HV is 'On'

12h30 RF Gun Phase is 15 dg., Sect. phase is 204 dg., Att. is 2.503 dB, TL/BPM2 X= 4 mm, Charges: -108 pC, -108 pC, -120 pC  

12h35 Feedback on linac injection was started

13h00 Measurement of the stability of the temporal position of electron and photon bunches at the IP. RF Cav. at 200 kV, Phase 35 dg.

13h07 The linac was adjusted: RF Gun phase 10 dg., Sect phase 199 dg. Charges: -100 pC,-99 pC, -110 pC, Inj. qual. 0.965, Storage qual. 0.802

14h26 The linac was adjusted: RF Gun phase 11 dg., Sect phase 203 dg. Charges: -99 pC,-99 pC, -109 pC, Inj. qual. 0.984, Storage qual. 0.747, X ray flux I3=25000 pA

Phase between electron beam and FP photon have been done (attachements will come later) (Electron beam is a pickup (150ps fall time) at the IP and Photon beam  is a photo diode (300ps rise time) at the FP cavity output).

time jitter is measured as the time difference between the two ulses at a fixed treshhold of 10mV)

measurements show a 33ps FWHM jitter (15ps)   as long as the FPC is locked on the 500MHz . the jitter mainly come from FPC (see post FPC : https://elog.lal.in2p3.fr/FPC/THOMX+commissioning/416)

15h35 The linac was adjusted: RF Gun phase 19 dg., Sect phase 212 dg. Charges: -105 pC,-104 pC, -115 pC, Inj. qual. 0.988, Storage qual. 0.786,

17h45 Stop ThomX