7h20: mise en chauffe en remote (frigo/chillers, laser, modulateur, cyclage)

08h55 HV is ON

10h07 70 MeV. Beam is in the ring with RF 100 kV, phase -37.5 dg. The recipe_recipe_LI_TL_RI_good_20260318_16_17_14.txt loaded, linac steerers adjusted, Laser phase 56 dg., Sect. Att. 0.191 dB, Sect. phase 255 dg. charges around -100 pC, laser att. 323,

Goal: same orbit as for 50 MeV for X rays.

Work on 70 MeV orbit.

Orbits were obtained near IP. Receipt 70 MeV: recipe_recipe_LI_TL_RI_all_20260320_12_35_26.txt

Work on 61.5 MeV

Receipt 61.5 MeV: recipe_recipe_LI_TL_RI_all_20260320_16_26_35.txt, F=500.034945 MHz

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

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

*** Programme : Mesure spectre et monochromateur à 61.5MeV (70MeV si le temps le permet)

61.5 MeV

09h35 HV is on
photocathod laser phase 62 dg.  The receipt 61p5MeV_20250703_12_56_55.txt loaded, going to 61.5 MeV (interlocks)
10h13 Beam is on TL/SST02. Sect. att. 0.992 dB, sect. phase 236 dg.
10h30 Aligned with QP1 - QP3, linac steerers: H [-0.2 -3.02], V [-2.55 3.22]
11h05 Beam is in the ring W/O RF with all ring correctors set to zero

RF 100 kV storage is good, but can't correct the orbit  at 61.5 MeV :  le faisceau est presque hors du tube ==> Try to go to 70 MeV

70 MeV

13h20 RF processing the section on 25 pps by increasing pulse length from 1 us to 3 us
13h56 70 MeV, Linac steerers H [0.21 -3.75], V [-2.84 3.33], sect. att 0.18, phase 255 dg. laser phase 56 dg. (On the base of 70_MeV_Vert_tune 0.66_good_20251212_13_56_38.txt)
16h17 recipe_recipe_LI_TL_RI_good_20260318_16_17_14.txt saved, screenshots, RF 100 kV, phase -36 dg., Freq. 500.031645 MHz

L'orbite n'est pas la meme que pour 50 MeV  ==> Checks spectres dromadaires a V+40 

X_fpc = -1.5 / -1.3 / -1.7 / -1.9 / -1.1  mais on a oublie d'ajuster la phase a chaque fois  .... meme phase (3.0 V) 
X_fpc = -0.9 / -0.7 / -0.4 / -0.2 / -0.5  en ajustant la phase a chaque fois
Cf les 2 screenshots "Spectre 70 MeV"

On se place a X_fpc = -1 mm (pas top mais dans l'urgence on se met la)

Fente2 centrees a l'oeil : [H , V] = [11 , -23]
Prise de spectres a +/- 10 en H et V  (a voir ce que ca donne offline)

17h56 ThomX was stopped

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

*** programme : Mesures : sol 230 100 pC

- Taille vert. e- (FPC)   ==> FAIT        (sigma = 110 um RMS stat / 102 um gauss)      --> Taille ele V = 85 um

- Spectre angulaire sur 6-7 mrad ==> FAIT
       Carre de 30 x 30 mm autour de l'OnAxis a l'oeil : ouverture fente2 0.3x0.3 mm
       Au dela : ouverture fente2 0.4 x 0.4 mm

- Diode_Calib (flux On-Axis) - PAS fait (I3 et I4 suffisent)

- Taille_Source photonic  ==> FAIT  - DISTANCE Hexa_ech - Photonic = 43 cm
       LSF [V , H] = [135 , 52] um
       LSF [V , H] = [136 , 53] um       --> Taille ele [H , V] = [143 , 81] um

- Longueur e-  ==> FAIT                      ~ 100 ps au debut,  200 ps end (fwhm) ==> 85 ps RMS

- Emitt_Linac (QuadScan Q1) - PAS fait, les mesures emittances sont chaque fois de l'ordre de  2-3 mm.mrad ...

     - Puissance FPC ~ 85 kW
     - Flux : I3+I4 ~ 15000 - 18000 ==> 1.1 - 1.3 10^10 ph/s

=================================

09h09 HV is on

09h41 recipe_recipe_LI_TL_RI_all_20260311_13_12_06.txt loaded, linac steerers adjusted. Beam in the ring W/O RF, ring saved 

09h49 RF 100 kV phase -42 dg. Charges around -100 pC, RF gun phase 172 dg., Sect. att. 2.4 dB , phase 224 dg. linac steerers: H [-0.2 -2.72], V [-2.54 3.14]

Programme : Etudes points Matching
==============================

Fentes2 centre faisceau a l’œil [H , V] = [7 , -18]

(Mot Det Ty = 10000 , TX = 0)

Orbites e- : idem que le 12/03 et le 11/03 (plate en Y, tout petit angle en X)

Check meilleures position de X_fpc 

X_fpc de -1.4 a -1.7 , prise de spectres V+40 et OnAxis 

- Ne change pratiquement rien aux dromadaires V+40

- On se place à X_fpc = -1.7 mm

DISTANCE Hexa_ech - Photonic = 43 cm

Sol = 230, iris=1.3

** Flux ~ 18000 (~ 12000 I3, ~ 6000 I4)

** Spectre OnAxis

** Mesure de taille source Photonic

(Mot Det Ty = 12000 , TX = 18000)
(Fente1 Hpos = -10.5 / Vpos = 2 / Hapert = 6 / Vapert = 5)

LSF [H , V] = [52 , 132]  um

** Long paquet : 87 ps inj à 190 ps (FWHM)

** Quadscan Q1 :

Emit [x , y] = [1.8 , 1.8]
Beta [x , y] = [6.5 , 4.7]
alpha [x , y] = [-2 , -1]

Sol = 242, iris=1.0

** Flux ~ 8-9000

** Mesure de taille source Photonic

LSF [H , V] = [69 , 197] um 
LSF [H , V] = [68 , 188]  um               MOINS BON

** PAS de prise de spectre

** Quadscan Q1 :

Emit [x , y] = [2.3 , 3.6]
Beta [x , y] = [54 , 44]
alpha [x , y] = [-11 , -8.5]

Avec autre fit du quadscan Q1 (Sol = 242, iris=1.0)

Emit [x , y] = [3.9 , 5.8]
Beta [x , y] = [32 , 26]
alpha [x , y] = [-7 , -5.4]

** Flux ~ 9000 (6000 I3 , 3000 I4)

** Mesure de taille source Photonic

LSF [H , V]  = [66 , 192] um
LSF [H , V] = [63 , 186] um

** 1 spectre OnAxis

** Long paquet : 100 ps inj à 200 ps (FWHM)

MOINS bien que Sol = 230

Sol = 238, iris=1.0

** Quadscan Q1 :

Emit [x , y] = [2.4 , 1.7]
Beta [x , y] = [31 , 40]
alpha [x , y] = [-6 , -8]

** Flux ~ 10000

** 1 spectre ONAxis

On passe l’iris de 1.0 à 1.3, avec même optique

** 1 spectre ONAxis

** Flux ~ 10000

MOINS bien que Sol = 230

Retour a Sol = 230, iris = 1.3

** Prise de spectres

V+20 / V-20 /  V-20 H+20 / H+20 / H+20 V+20 / H-20 V+20 / H-20 / H-20 V-20
V-40
V+40
H+40

** Mesure de taille source Photonic

LSF [H , V] = [67 , 168] um

08h32 Warm-up ThomX: Modulator, Laser, Fridge

08h37 Chillers were started, cycling all magnets

09h48 HV is ON

10h42 There was a problem with "Camera Laser". Restarted  li/op/las.02 server by killing it

12h26 Beam is in the ring, RF 100 kV, phase -42 dg. Laser phase 163 dg. Sect att. 2.57 dB, Sect. phase 221 dg. Laser att. 324, Charge oscillating around -120 pC. Feedback laser PID coefficients were changed: P=0.5,I=0.02, D=0.05 to get more stable laser spot position (Old: P=0.7,I=0.01, D=0.1 ).

18h27 ThomX was stopped

Alignement CdTe On-axis a l'oeil
Prises spectres ouvertures fentes2 0.3x0.3 : OnAxis , V+40 , H+40 , H+20 , V+20 , H-20 , H+20 , V-20

-----------------------------------------------------------------------------------------------------------

Alignement MONO parallele au faisceau : Hexa mono Ry_mono = -0.1 deg

----------------------------------------------------------------------------------------------------------

Fente2 OnAxis

Ry = - 2.6 - 0.1 deg (43.6 keV code Kilperic)  - R_sample = 5.2 deg

Spectres Fentes2 ouvertes ** 1 x 1 mm
                                         ** Max

Ry = - 2.5 - 0.1 deg (44.3 keV code Kilperic)

Spectres Fentes2 ouvertes ** Max
                                         ** 1 x 1 mm
                                         ** 0.5 x 0.5
                                         ** 2 x 2
                                         ** 3 x 3

Ry = - 2.45 - 0.1 deg (46 keV code Kilperic)

Spectres Fentes2 ouvertes ** Max
                                         ** 0.5 x 0.5
                                         ** 2 x 2

Mesure du flux diode calib avec et sans MONO

SANS MONO
    Fentes2 ** 1 x 1 mm 12h50-51
                 ** 2 x 2  12h51-52
                 ** 3 x 3  12h52-53

Avec MONO : IMPOSSIBLE trop de bruit de fond

Mesure du flux avec DECTRIS

Ry = - 2.45 ==> Images 404 et 405 (13h11)
Ry = - 2.5  ==> Images 406 et 407 (13h12)
Ry = - 2.6  ==> Images 408 et 409 (13h13)
REF Ry = - 0.1 ==> Images 410 et 411 (13h18)

Fente2 V+40

Ry = - 2.9 - 0.1 deg (39 keV code Kilperic)

Spectres Fentes2 ouvertes ** 1 x 1 mm
                                         ** Max
                                         ** 2 x 2

Mesure du flux avec DECTRIS

Ry = - 2.9 ==> Images 415 et 416 (13h41)
REF Ry = - 0.1 ==> Images 418 et 419 (13h43)

Prise spectre ref a V+40

Fente2 V+70

Ry = - 3.8 - 0.1 deg (30 keV code Kilperic)

Spectres Fentes2 ouvertes ** 1 x 1 mm
                                         ** Max
                                         ** 2 x 2
                                         ** 5 x 5
                                         ** et divers autres

Fente2 H-37

Prise spectre ref a H -37

Pour Ry = - 2.9° (angle mono), R_sample = 6.5° (2theta)

Spectres Fentes2 ouvertes ** 2 x 2 mm
                                         ** Max

Fente2 H-64

Prise spectre ref a H -64

Pour Ry = - 3.8° (angle mono), R_sample = 8.5° (2theta) ==> Emean ~ 27keV

Pour Ry = - 3.2° (angle mono), R_sample = 7.3° (2theta) ==> Emean ~ 31.5keV

Fente2 H+36

Prise spectre ref a H +36

Pour Ry = - 2.9° (angle mono), R_sample = 5.5° (2theta) ==> Emean ~ 42keV

Pour Ry = - 3.2° (angle mono), R_sample = 6.1° (2theta) ==> Emean ~ 38keV

8h: mise en chauffe de la machine en remote (modulateur, laser, frigo/chillers, cyclage)

*** Programme ***

- Prise de données MonoChromateur. 

09h04 HV is on

recipe_recipe_LI_TL_RI_all_20260311_13_12_06.txt loaded

09h43 Beam is in the ring W/O RF

10h16 RF 100 kV, phase-42 dg. Charge is oscillating -100 pC to -120 pC. Laser att. 316, RF gun laser phase 148 dg., sect. phase 222 dg.,

10h36 Laser phase 140 dg., Sect. 223 dg.

12h16 RF 100 kV, phase-46 dg. Charge is oscillating -100 pC to -120 pC. Laser att. 316, RF gun laser phase 142 dg., sect. phase 223 dg.,

15h48 RF 100 kV, phase-46 dg. Charge is oscillating -100 pC to -120 pC. Laser att. 316, RF gun laser phase 132 dg., sect. phase 224 dg.,

17h27 ThomX was stopped

Some Quad scans with variying the Iris opening.

Data :

• 17h17 : 2mm 120 pC
• 17h31 : 1.3mm 100pC
• 17h46 : 1mm 80pC
• 18h00 : 1mm 100 pC
• 18h27 : 1mm 100 C Sole 240 
• 18h41 : 1mm 100 C Sole 245

8h: mise en chauffe en remote (cyclage, modulateur, laser, frigo/chiller)
clients et réseau très lent ==> reboot à faire sur TOUT les clients (client1 à 100% de la mémoire de prise)
09h28 HV is on

10h02 Beam is in the ring W/O RF. recipe_recipe_LI_TL_RI_all_20260224_14_54_20.txt loaded. Linac steerers adjusted
10h15 RF 100 kV, phase -39 dg.
11h03 Charges ~100 pC, laser att. 320

-----------------------------------------------------------------------------------

Les 2 det Dectris et photonic sur bras detecteur

Changement de position du CdTe sur l'hexa ech  ==> Nouvelle correspondance Fentes2 / Hexa : Hexa [70 , 20]  Fente2 [4 , -19]
Check : 1 spectre OnAxis, 1 a V+40, 1 a H+40

Calibration bras détecteur TZ : 1m = 79 777 pas moteur

-------------------------------------------------------------------------------------

Alignement TRANSFO centre faisceau avec les 2 pinholes

12h25  Mesure taille de source

5 images Photonic tous les 20000 pas (~ 1 m d'excursion en Z ,  Z=0 correspond au point echantillon)
AVEC PINHOLES :

R 17 + 22 + 28 ==> 5 images Z = 0 , 20000 , 40000 , 60000 , 80000
R 17 + 22                   "
R 17                           "
R 28                           "
R 22 + 28                    "
R 22                           " 
R 17 + 28

Alignement diode calibree centre faisceau - Fentes2 refermee autour de la diode - Mesures flux diode calibree

Pinholes : 13h53 - 54
Pin + R17+22+28 : 13h54 - 55
Pin + R17+22 : 13h55 - 56
Pin + R17 : 13h56 - 59
Pin + R17+28 : 14h00 - 01
Pin + R22+28 : 14h02 - 03
Pin + R28 : 14h03 - 04
Pin + R22 : 14h05 - 06

Photonic au point echantillon  - R17+22 AVEC PINHOLES ==> Fentes 2 : ouverture [1 , 0.4] mm = tout le faisceau
                                                                                                                                 [0.5 , 0.2] mm
                                                                                                                                 [0.25 , 0.1] mm

Diode calib au point echantillon - Mesures

SANS LENTILLES - AVEC PINHOLES

Fentes 2 = [1 , 0.4] 14h32 - 33
                [0.5 , 0.2]  14h33 - 34 
                [0.25 , 0.1]  14h35 - 36 

SANS LENTILLES - SANS PINHOLES

Fentes 2 = [0.25 , 0.1]  14h36 - 37 
                [0.5 , 0.2]  14h38 - 39
                changement de calib du PICO 
                [1 , 0.4] 14h42 - 43

SANS Fentes2 - SANS PINHOLES

Avec R17 -14h44 - 47
Avec R17+22 14h48 - 49
Avec R17+22+28 14h49 - 50

5 images Photonic tous les 20000 pas (~ 1 m d'excursion en Z ,  Z=0 correspond au point echantillon)
SANS PINHOLES :

R 17+22+28 (==> 5 images Z = 0 , 20000 , 40000 , 60000 , 80000) ,
R 17+22
R17
R 28
R 22+28
R22
R17+28

Mesure taille de source fentes1 (15h40)

12h55 : Vacuum level OK after TRIG ON
13h00 : Laser ON : no spot on screen put last motor positions (2266 && 4158) --> No spot on screen :(
13h05 : Gun activities incresed (Vac > 1e-7 && reflected power)
13h12 : Laser put OFF

09h00 Warm-up ThomX: Modulator, Laser, Fridge

09h05 Chillers were started, cycling all magnets

10h03 HV is on

10h08 The laser att. 300 ==> 274 to set the gun charge to -100 pC 

10h53 beam is in the ring. Laser phase 101 dg., Sect.  Att. 2.533 dB, sect. phase 223 dg. (mot. pos. 1710. 223-60 dg. mot. pos. 1254 )

11h34 Breakdowns in the gun. Low SF6 pressure (2.2 bar)

13h38 Jean-Noel fixed it

13h48 HV is on

14h41 Gun charge is very ubstable and low. Breakdowns in the gun.

15h06 RF gun att. 3 dB

15h10 RF gun att. 2 dB

15h13 RF gun att. 1.5 dB

15h16 RF gun att. 1 dB. Can't move on. 

15h19 Shutter was closed

15h24 RF gun att. 0.8 dB

15h28 RF gun att. 0.4 dB

15h29 RF gun att. 0.2 dB, breakdowns, go back to 2 dB

15h51 50 pps 2 dB

16h02 It gets worse 

16h03 12.5 pps.

16h25 RF gun att. 0.5 dB

17h00 RF gun att. 0.8 dB

17h53 RF gun att. 0.0 dB, pulse width 2 us, breakdowns

17h58 RF gun att. 0.0 dB, pulse width 2.7 us, dark current 30 mV, solenoid off

18h00 RF gun att. 0.0 dB, pulse width 3 us, dark current 30 mV (it used to be around 18)

18h17 The laser spot on the cathode, the solenoid on, charge is low. There are breakdows at the new spot position.

18h20 ThomX was stopped

09h00 Warm-up ThomX: Modulator, Laser, Fridge

09h05 Chillers were started, cycling all magnets

10h03 HV is on

10h08 The laser att. 300 ==> 274 to set the gun charge to -100 pC 

Mesures : Spectres et taille source X + Quads scans associées, @

** Sol 230 100pC 

** Sol 242 100pC

** Sol 250 100pC (pas de mesure, car flux ~ 3000, pas de centre vertical du faisceau sur Dectris)

** Sol 230 200 pC

18h40 Fin 
 

08h35 Warm-up ThomX: Modulator, Laser, Fridge

Programme shift : verifier que la recette orbite plate utilisee lors du shift du 24/02/2026 (= orbite PLATE, vers 15h) est toujours ok apres l'ajout de resistance sur dipole anneau (resistance installee apres le shift, = le 24/02 au soir)

08h40 Chillers were started, cycling all magnets.
09h47 HV is on but there are no triggers. Failed to connect to device li/op/opt.02-las.01-asp.01. The photocathode laser control mashine is off.
10h10 The photocathode laser control mashine is on. The laser amplifier was started.
10h29 Misstriggering caused modulator interlocks
10h44 It is OK with triggering, exept the photocathode laser.
11h15 Laser is ok, phase 133 dg.

11h48 The laser spot moves out of the screen, Hayg fixed it

12h35 Transfocator_20260225_17_33_57.txt loaded. Linac steeres were adjusted. Laser phase 127 dg., Sect. att. 2.532 dB, sect. phase 225 dg. linac steerers: H [-0.21 -2.66], V [-2.47 3.32], RF 100 kV, phase -39 dg., charges around -100 pC

On ne voit pas le centre du faisceau X sur DECTRIS - Trop allonge verticalement
Viktor "ajuste" la recette ==> on voit un tout petit petit petit peu mieux le centre ...
Flux < 5000  .....
Scan FPC ==> faisceau enorme cf screenshot 1_scanFPC_recipe_ou_on_voit_le_centre.png

Retour recette du depart orbites a peu pres plates plates
Flux minuscule
Scan FPC ==> faisceau enorme cf screenshot 2_scanFPC_receipe_FLAT_centre_pas_visible.png

Optimisation phases etc par Viktor
Flux minuscule
Scan FPC ==> faisceau enorme cf screenshot 3_scanFPC_receipe_FLAT_OPTIM_centre_pas_visible.png 

16h58 Standby, removing the additional shunt resistor from the bend #3

17h42 HV is on

18h00 recipe_recipe_LI_TL_RI_all_20260224_14_54_20.txt loaded
Faisceau a peu pres au centre du tube
Flux ~ 20.000
Comparaison avec shift du 24/02 (spectre onaxis et V+40) ==> cf screenshot compar_20260224_20260304_after_cut_resistance.png 
==> c'est OK, spectres tres similairees

18h26 ThomX stopped

CONCLUSION : impossible d'obtenir un faisceau electrons correct avec la nouvelle resistance. Retirer la resistance a permis de retrouver les resultats du 24/02

DEMAIN : demarrage des etudes matching a ce point de fonctionnemenet
A 100 pC
  - Sol 230
  - Sol 242
  - Sol 250 100 pC,
puis SOL 230 a 200 pC 

07h55: mise en chauffe en remote (frigo/chillers, laser, modulateur, cyclage)

09h00 HV is on

09h35 recipe_recipe_LI_TL_RI_all_20260226_14_47_33.txt loaded. Beam is in the ring, RF cav. 100 kV, phase 32 dg., F=500.108655MHz

RF Gun phase 75 dg., Sect. att. 2.532 dB, sect. phase 220 dg., linac steerers: V [0.23 -2.68], V [-2.49 3.27], charges (BPMs) around -110 pC

At F=500.108655MHz and TL/BPM02 X=2mm the orbits are almost the same with and without RF (see screenshot)

At given ring settings, the MRSV size is highly dependent on the DPI, septum, and kicker settings, which are determined by the injection energy (Sect. att. and line phasing).

A combination of DPI, septum, and kicker settings should be adjusted to reduce the MRSV size.

12h35 The laser spot has moved outside the screen!!! Help needed!!!

Kevin fixed it.

Additional research showed that F=500.10045 MHz is suitable for ring operation.

15h55 ThomX was stopped.

08h15: mise en chauffe en remote (frigo/chillers, laser, modulateur, cyclage)

08h15: mise en chauffe en remote (frigo/chillers, laser, modulateur, cyclage)

09h19 HV is on

RF gun phase 78 dg. Sect. Att. 2.56 dB, sect. phase 219 dg. RF 50 kV. Linac steerers:  H [-0.36 -2.65], V [-2.49 3.24].

Scan ring RF frequency.

16h40 ThomX stopped

7h30: mise en chauffe en remote (frigo/chillers, laser, modulateur, cyclage)

*** Programme *** : 
          - Check spectres OnAxis, V+25 et V+40 apres resistances dipole installe hier soir    (pas fait)
          - Alignement et 1ere prise d'image TRANSFOCATEUR sur orbite de référence              (fait)

8h30 : on charge la recette "all_20260224_14_54_20"

Flux tres bas (3000-4000)

Adjustement chroma ==> Recette 20260224_15_49_43_adjust_chroma

     Flux toujours tres bas :      3000-4000 ph/s
     Taille verticale scan FPC   230um RMS
     Streak :                              240 ps

     On ne peut pas demarrer le shift

16h16 Several recipes were saved with adjusted settings for the linac and ring orbit. Flux I3+I4 riched of 20000 pA, but they became unusable after a few minutes due to instability.

17h36 Receipt recipe_recipe_LI_TL_RI_all_20260225_17_33_57.txt saved with comment: 20260225_for_transfocator_align
Recipe saved in References recipes : Transfocator_20260225_17_33_57.txt
Alignement transfocateur et Prise d'image - Racks in/out

----------------------------------------------------------

Code redpit phase laser a change
il reste a redemarrer la carte

7h40: mise en chauffe en remote (frigo/chillers, modulateur, laser, cyclage)

*** Programme ***

- repartir de la recette "iniale" de jeudi avec un grand angle vertical à l'IP

- trouver le point de "bascule" horizontal de l'IP avec la CFP (point immobile en fonction de la phase CFP)

- Changer l'angle vertical pour trouver le minimum acceptable pour les spectres (par dicotomie)

08h36 HV is on

09h30 recipe_recipe_LI_TL_RI_all_20260218_12_34_02.txt loaded. RF Gun phase 42 dg., Sect. att. 2.57 dB, phase 213 dg. Linac steerers: H [-0.09 -2.76], V [-2.39 3.23], Charges (ICT) about -100 pC, BPMs - about -100 pC. RF cavity phase -33 dg.

09h50 Ramp to 280 kV

Laser phase appears unstable

10:34 AM Vertical orbit bump applied

13h41 RF cavity ramp down to 150 kV

18h00 Standby

The additional shunt resistor installed on third DP.

19h27 HV is on

19h40 Standby

The additional shunt resistor installed on sixth DP.

20h00 HV is on

20h20 Standby

The additional shunt resistor was removed on sixth DP.

20h52 HV is on

21h30 RF gun phase 87 dg. Sect. att. 2.442 dB, Sect. phase 222 dg. Charges (BPMs): around -110 pC, unstable.   Linac steerers: H [-0.19 -2.67], V [-2.43 3.30], RF cav. 150 kV, -33 dg.

22h30 Dispersion measurement

22h50 Beta functin  measurement

Data save in filename /tmp_mnt/data/iryna.chaikovska/mml/measdata/THOMX/StorageRingdata/QUAD/QuadBeta_2026-02-24_22-44-21.mat 
Tunes before mesurement nux = 0.1692 nuz = 0.7226 
Tunes after  mesurement nux = 0.1676 nuz = 0.7265 
maximum betabeat dbxobx = 32.7 % dbzobz =  6.8 % 
rms betabeat bx = 12.3 % rms bz =  2.9 % rms 

Frequency scan from 500.078 MHz to 500.124450 MHz

02h16 ThomX was stopped

9h40: mise en chauffe (chillers/frigo, modulateur, cyclage)

HV ON

The ICT signal (GUN) is frozen. Need help to restart it. Use the BPM SpSum instead.

13h Beam in the ring.

RF gun phase 31 dg., Sect. att. 2.47 dB, Sect. phase 237 dg., charges (ICT): about -120 pC

17h16 ThomX stopped