7h55 : mise en chauffe en remote (chiller/frigo, laser, modulateur, cyclage)

9h : démarrage, pas de soucis au niveau du trig

16h30 : demarrage anneau pour recette 230A

les phases ont changées :

dephaseur manuel: 1182 pour 50MeV

prise de donnée à 230A (taille faisceau + spectre)

08h36 Warm-up ThomX: Modulator, Laser, Fridge
8h41 Chillers were started, cycling all magnets.
09h40  HV is ON

** 10h38 recipe_recipe_LI_TL_RI_all_Sol245_20260113_17_50_09.txt loaded, RCDS on injection11h23 

RF 100 kV, Phase -4 dg. Manual 1179. RF gun phase 168 dg., Sect Att. 2.53 dg., Phase 214 dg., Charges (BPMs): -185, -177, -182, -181 pC, Linac steerers H [0.75 -2.95], V [-2.64 3.14] ,
MRSV FWHM about 50, sigma down to 22 pix
Acquisition d'un SPECTRE "on-axis a l'oeil" (Hm3_Vm10p2)  - "Nominal ring QUADs"

** 11h36 Set charge to 100 pC, Laser Att. 329,  RF gun phase ==> 171 dg.

- Acquisition d'un SPECTRE "on-axis a l'oeil" (Hm3_Vm10p2) - "Nominal ring QUADs"
- Scan vertical FPC (~11h50)
- Mesure Taille source fente 1 (images wiite beam + image fente source)

** 12h21 recipe_recipe_LI_TL_RI_all_20260109_14_44_42.txt loaded, then receipts for the linac and the transfer line recipe_recipe_TL_all_20260114_12_20_00.txt, recipe_recipe_LI_TL_straight_all_20260114_12_19_54.txt

RCDS on injection. Sometimes MRSV FWHM ==>40 and less. 
- 13h51 : Acquisition d'un SPECTRE "on-axis a l'oeil" (Hm3_Vm10p2)  - "NOT nominal ring QUADs"
- 14h : Scan FPC

** 14h55 : Discussion Marie/Iryna/Viktor ==>  Retour a la recette "nominal ring QUADs" (recipe_recipe_LI_TL_RI_all_Sol245_20260113_17_50_09.txt)
PUIS, a 15h10 : recipe_recipe_LI_TL_RI_all_20260114_12_31_30.txt reloaded  ....  Pourquoi ? je ne sais pas ... Je ne l'ai su qu'a 16h30, donc :

• Tous les spectres_vs_position_CdTe mesures ensuite (necessaires pour retrouver la divergence e-) sont acquis en fait avec "NOT nominal ring QUADs" au lieu de  de la recette SOL_245 isuue de la simu Julien (recipe_recipe_LI_TL_RI_all_Sol245_20260113_17_50_09.txt)
• Mesure Taille source fente 1 (15h14-15h18)

** 17h30 : recherche de la cause "spectres dromadaires"

• Visualisation de tout le tube ==> rien dans le trajet du faisceau
• Spectre en desynchro toute fentes ouvertes : meme effet dromadaire
• Mouvements HORIZONTAUX de la cavite FP et/ou Phase : Variations claires de la forme du dromadaire (spectres pris pour pos Horiz FPC -1.8, -1.3 -2.3 mm)  ==> Effet dromadaire sans doute lie au faisceau d'e- qui est courbe entre les 2 dipoles (==> 2 interactions ?) . Effet a quantifier/simuler, puis, si ca se confirme, il faudra trouver une solution pour que l'IP soit absolument sur la tangeante de la courbure des e-

18h05 Stop ThomX

08h56 Warm-up ThomX: Modulator, Laser, Fridge
Chillers were started, cycling all magnets.
Low SF6 pressure.

10h20 HV ON

Tuning of the Linac. Charge at ICT1 is about 100 pC

Load the nominal receipt.

Modulator put to stand by. Lunch break.

13h16 HV ON

Application of the quadrupol calibration curve -12..12 A.

NEW

K1i_model =

   -1.5941
   -1.5941
   -1.5941
   -1.5941

K2i_model =

    3.2615
    3.2615
    3.2615
    3.2615

K3i_model =

   -6.1107
   -6.1107
   -6.1107
   -6.1107

K4i_model =

    5.4292
    5.4292
    5.4292
    5.4292

K5i_model =

   -3.5901
   -3.5901
   -3.5901
   -3.5901

K6i_model =

    2.3630
    2.3630
    2.3630
    2.3630

>> 
OLD
K1i_model =

   -1.5473
   -1.5473
   -1.5473
   -1.5473

K2i_model =

    3.1987
    3.1987
    3.1987
    3.1987

K3i_model =

   -6.0302
   -6.0302
   -6.0302
   -6.0302

K4i_model =

    5.3524
    5.3524
    5.3524
    5.3524

K5i_model =

   -3.5248
   -3.5248
   -3.5248
   -3.5248

K6i_model =

    2.3082
    2.3082
    2.3082
    2.3082

Machine-Model studies.

Nominal receipt

Before LOCO
=== dQ/dx comparison (axis: delta (dk*steps)) ===
Family    dQx/dx(M)      dQx/dx(T)      ratio     dQy/dx(M)      dQy/dx(T)      ratio
QP1     +4.975e-01  +5.370e-01   0.927   -3.362e-01  -4.067e-01   0.826
QP2     +7.289e-01  +8.119e-01   0.898   -2.407e-01  -2.830e-01   0.851
QP3     +2.198e-01  +2.420e-01   0.908   -9.850e-01  -6.102e-01   1.614
QP4     +1.026e+00  +1.136e+00   0.903   -2.736e-01  -2.968e-01   0.922
QP31    +6.600e-02  +7.543e-02   0.875   -2.357e+00  -1.288e+00   1.830
QP41    +5.350e-01  +6.000e-01   0.892   -1.024e+00  -5.563e-01   1.841

LOCO studies.

Checked that the first turn on which we inject now is 13-14th.

18h20 STOP THOMX

08h29 Warm-up ThomX: Modulator, Laser, Fridge
Chillers were started, cycling all magnets.

10h48 Beam is in the ring after resolving a lot of problems. The receipt loaded: recipe_recipe_LI_TL_RI_all_20260115_18_10_34.txt, with Linac-Tl :   recipe_recipe_TL_all_20260116_10_52_12.txt, recipe_recipe_LI_TL_straight_all_20260116_10_51_52.txt. Linac steerers: H [0.59 -2.74], V [-2.48 3.06]

RF Gun phase 140 dg. Sect. Att. 2.523 dB, Sect. phase  190 dg. Laser att. 409, charges (BPMs): -100, -95, -98, -98 -97 pC , RF 100 kV, phase -8.5 dg. The MRSV camera dozs not operate.

11h44 Problem with cameras

All triggers dissapeared

Nicolas fixed it, but phases is different: RF gun phase 96 dg., sect phase 203 dg. RF cav. phase?

12h50 Laser phase jumped to 171 dg. Sect. phase ==> 210 dg. Manual phase shifter set back to 1176. The laser att. ==> 359 for RF gun charge -115 pC (BPM)

Ring studies Model-Machine

From time to time laser fase jumps.

Triggers stopped. Nicolas is looking at it.

14h40 Beam dissapears in between the studies. Every time we retune the linac...

No triggers!!!!

18h04 LOCO is on its way. Time to times the laser loses phase synchronization. It's terrible.

18h20 We've lost laser synchronization.

18h21 Stop ThomX

08h35 Warm-up ThomX: Modulator, Laser, Fridge
08h41 Chillers were started, cycling all magnets.

09h40 HV is ON

10h12 The receipt loaded: recipe_recipe_LI_TL_RI_all_20260116_14_22_26.txt. Beam is in the ring W/O RF

RF gun phase 40 dg., Sect. Att. 2.556 dB, Sect. phase 207 dg., Linac steerers: H [0.58 -2.83], V [-2.48 2.94],  charges (BPMs):  -125, -119, -121, -122, -119 PC, the laser att.  359

10h38 RF 100 kV, phase -4 dg., manual phase shifter was adjusted.

10h54 RI_C1 Quads were stoped to chec dispersion at injection

13h00 Triggers stoped, after that was fixed the laser phase jumped to 202 dg. sect. phase 206 dg. 

15h39 Mod. standby

17h20 HV is on

18h01 Stop ThomX

7h55: mise en chauffe en remote (modulateur, cyclage, laser, frigo/chillers)
==> plus de trig sur la machine (sur toute la plage de scan de la phase stab du laser PC). ==> OK, je suis une truffe le laser était "off"

**** Programme ****

- mesures RP
- test de différentes position IP pour remédier aux spectres en "dromadaires"

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

11h X_fpc = -1.8 mm

** Spectres 

centre  [H , V] = [-8.5 , -13.5] 
V+25  [H , V] = [-8.5 , +11.5]

** Mesure taille de source fente1

11h50 X_fpc = 0 mm (faisceau en bord de tube (coupe par le tube meme)

** Spectres 

centre [H , V] = [+62 , -13] 
V+25  [H , V] = [+62 , +12]
H-25  [H , V] = [+37 , -13]

12h30 X_fpc = -0.9 mm

** Spectres 

centre [H , V] = [+25 , -13] 
V+25 [H , V] = [+25, +12]

Plus de phase plus d’electron – 13h22 retour faisceau

H-25 [H , V] = [0 , -13]

Plus de phase – plus d’e- - 13h47 retour faisceau

V+25 [H , V] = [+25 , +12]
Centre [H , V] = [+25 , -13]
H-25 [H , V] = [0 , -13]
H+25 [H , V] = [50 , -13]
V-25 [H , V] = [0+25, -38]

14h30 Retour a X_fpc = -1.8 mm (pour aller a det +/-40 mm)

** Spectres 

centre [H , V] = [-7 , -13] 
V+25 [H , V] = [-7 , +12] 
H+25 [H , V] = [+18, -13] 
H-25 [H , V] = [-32 , -13] 
V-25 [H , V] = [-7 , -38]
V-40  [H , V] = [-7 , -53] (droma)
V-40 [H , V] = [-7 , -53]  avec orbite e- differente  (droma)

15h40 Retour a X_fpc = -0.9

** Spectres 

centre [H , V] = [+25, -13]
V+40   [H , V] = [+25, +27]      anneau “pas bon” (drom)
V+40   [H , V] = [+25, +27]      anneau “reajuste” (un peu drom)

** Mesure taille source fente 1

** Spectres

H+40  [H , V] = [+65, -13]
V-40   [H , V] = [+25, -53]
V-40   [H , V] = [+25, -53] avec cavite RF 200 kV

16h45 X_fpc = - 0.6

** Spectre

centre [H , V] = [+40, -13]
H-40 à [H , V] = [0, -13]
V-40 à [H , V] = [40, -53]
V+40 à [H , V] = [40, +27]
H+30 à [H , V] = [70, -13] (on ne peut pas aller a +40)

** Quelques autres spectres pris

** Mesure taille source fente 1

7h45: mise en chauffe en remote (modulateur, laser, frigo/chillers)

08h41 HV is on

08h49 RF gun phase 152 dg., sect phase 208 dg. beam is in the ring W/O RF

08h58 Standby, Cycling all magnets

09h30 HV is on

12h47 Standby

12h58 HV is on

14h26 Laser phse jumped from 143 dg. to 261 dg. Ring RF cavity phase ==> -73.5 dg. from -15 dg.

16h40 Laser phse jumped from 257 dg. to 44 dg.Ring RF cavity phase ==> -15 dg. from 33 dg.

17h07 Laser phse jumped from 44 dg. to 218 dg. Ring RF cavity phase ==> -83.5 dg. from +33 dg.

18h13 HV is off, cycling ring quads

18h48 HV is on

22h01 Stop ThomX

7h45: mise en chauffe en remote (modulateur, cyclage, laser, frigo/chillers)

08h43 HV is on

RF gun phase (laser phase) for maximum charge is out of the range, close to 360 dg. or 10 dg. Help is needed!

09h13 Kevin fixed it.

Stady of beam decay in the ring at different beam charges, streeck camera measurements, LOCO, vertical BBA attempt.

19h21 Stop ThomX

08h25 Warm-up ThomX: Modulator, Laser, Fridge

08h33 Chillers were started, cycling all magnets.

09h31 HV is on. Vacuum: Li/Vac1 4e-9, Li/Vac2 3e-9, Li/Vac3 3e-9, Li/Vac4 1e-9

09h33 Sect. Att. 30 dB, RF Gun Att. 20 dB, HV 1030 V Interlock

09h39 Sect. Att. 30 dB, RF Gun Att. 20 dB, HV 1050 V Interlock. Something wrong

10h20 HV 1050 V. Maher is here. Interlock by reflected power to the klystron.

10h26 Modulator is on standby.

10h29 HV is on W/O RF. HV 1215 V. All is OK.

10h34 Modulator is on standby.

10h57 HV is on, 1030 V

11h09 HV is  1050 V

11h35 50pps, 1030V

11h42 1040 V interlock

11h45 Modulator is on standby.

16h10 Stop ThomX

Mesures après remontage de la cale : 1215 V sur le modulateur. ça tient mais encore des claquages dans le Canon à 0dB. Il faut faire travailler encore un peu demain. 

la suite demain

09h12 Warm-up ThomX: Modulator, Laser, Fridge

09h21 Chillers were started, cycling all magnets.

RF 50 pps

1210 --> interlock 
1150 : ok 

Vacc : vac4 dominates (section) 

Q_max (420) = 700 pC !

Alignement cathode à vérifier : 
position [X ; Y] : [5.33822878121 ; 4.32296059091]
pente [X ; Y] : [685.183030303 ; 1644.7430303]
error [X ; Y] : [1197.22874693 ; 11425.5175959]

13h38 Standby

14h09 Steereing coils along the section were installed, HV is on, the laser gate was closed

14h10 Sect Att. 30 dB, RF gun Att. 20 dB, HV 1160 ==>1215 V

14h13 All seems OK, Sect. Att. 20 dB 

14h15 Sect. Att. 10 dB 

14h18 Att. 5 dB 

14h20 Att. 3 dB  

14h22 Att. 2.44 dB 

14h24 interlock, sect. vacuum jumps, restarted

14h30 RF Gun Att. 15 dB. Gun vacuum drops

14h32 Gun Att. 10 dB.

14h34 Interlock, unknown reasone, restarted

14h36 Interlock, unknown reasone, restarted

14h41 RF Gun Att. 8 dB.

14h46 RF Gun Att. 7 dB.

14h50 RF Gun Att. 6 dB.

14h53 RF Gun Att. 5 dB. (Gun vac01 1e-8)

14h55 RF Gun Att. 4 dB.

15h01 RF Gun Att. 3 dB.

15h05 Interlock, restarted (not a vacuum problem)

15h06 RF Gun Att. 2 dB.

15h10 RF Gun Att. 1 dB, Sect Att. 1.44 dB

15h11 Interlock, sect. Vacuum (Vac05), Sect Att. 2 dB 

15h15 Interlock, sect. Vacuum

15h20 RF Gun Att. 0.8 dB, Sect Att. 2.04 dB

15h22 Interlock, sect. Vacuum (Vac05)

15h24 RF Gun Att. 0.7 dB, Sect Att. 2.04 dB

15h27 RF Gun Att. 0.6 dB, Sect Att. 2.04 dB

15h32 RF Gun Att. 0.5 dB, Sect Att. 2.04 dB

15h34 RF Gun Att. 0.4 dB, Sect Att. 2.04 dB

15h36 Interlock, sect. Vacuum (Vac05)

15h37 RF Gun Att. 0.3 dB, Sect Att. 2.04 dB

15h39 RF Gun Att. 0.2 dB, Sect Att. 2.04 dB

15h42 RF Gun Att. 0.1 dB, Sect Att. 2.04 dB (gun breakdowns)

15h53 RF Gun Att. 0.0 dB, Sect Att. 2.04 dB (gun breakdowns)

16h00 HV off. 12.5 pps 

16h01 HV on

16h07 Gate open, Laser Att. 233, -100 pC, RF Gun phase 103 dg.

16h35 RF Gun phase 103 dg., Sect. phase 221 dg., Sect. Att. 2.36 dB -100 pC. Linac steerers to align QP1 - QP3 H [-0.22 -2.82], V [-2.52 3.15]. Li/BPM01 x=1.8, y =0, but not on the screen

from the code : QP1 - QP3 H [-0.23 -2.82], V [-2.53 3.16].

Charge is oscillating, do not see the reason. 

rechecked the laser alignment : it's seems to be within the variations of the beam position. Cannot do better. 

Remark concerning the timing ... 25 min more on the trend data (tango, libera side ? ) : see the trend file for the positions. 

H : 5.256
V : 4.643

QP1 scan to check the working point. 

18h30 Stop 

The code for laser alignment does not work properly --> done by hand 
H 5.244
V 4.654

phiMax section = 224 

position change (yag screen in pixels)  vs delta phase 

Sole 230: 

Eps X: 

  emit_norm  : 1.3682 mm.mrad
  beta       : 19.51 m
  alpha      : -6.673

Eps Y: 

emit_norm  : 1.7366 mm.mrad
  beta       : 10.60 m
  alpha      : -3.606
 

Scan_QP0118h01.mat : 230

Scan_QP0118h09.mat : 240

Scan_QP0118h22.mat : 235

Scan_QP0118h26.mat : 225 

Scan_QP0118h31.mat : 235 : 

Scan_QP0118h31.mat : 235 : gain 0 

Scan_QP0118h36.mat : 240  : Gain 0 

18:40 stop

7h50 : mise en chauffe en remote (frigo/chillers, modulateur, laser, cyclage)

Le cyclage de RI-C1/QP.08, RI-C1/QP.11 et RI-C2/QP.03 ne démarre pas tout seul (action nécessaire sur le boutton cyclage de l'élément).

Programme - Etude "IP dromadaire" ==> Scan pos horizontale FPC + phase 

Positions FENTES2/HEXA des 2 derniers shifts :
    Pos FENTE2 :    [H , V]  = [-3 , -10.20]
    Pos HEXA ech : [Tx , Ty] = [+79 , +31]

10h00 Beam is in the ring W/O RF, -120 pC, receipt saved: recipe_recipe_LI_TL_RI_all_20260217_09_44_16.txt on the base of reference for 50 MeV

recipe_recipe_LI_TL_straight_all_20260217_10_08_07.txt for the linac and the TL stright part

RF 100 kV phase -48.5 dg.

10h35 Standby, Changing the FPC controller

11h23 HV is on

11h40 RCDSon injection

11h59 RF gun phase 23 dg., Sect. Att. 2.39 dB, Phase 230 dg., Charges: (ICT) from -120 to 140 pc, (BPMs) -137, -137, 137, 137 pC

tunes: H 0.166, V 0.71

12h26 tunes: H 0.167, V 0.72. MRSV size is very sensetive to injection settings

At around 2:45 p.m., the power to the ring dipole went out.

16h42 RF 280 kV, phase -50 dg. Streak camera measurements for 100 kV and 280 kV

Orbit bump to change orbit tilt around IP

18h59 Stop ThomX

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

8h40 HV ON

10h20 recipe_recipe_LI_TL_RI_all_20260218_10_18_05.txt saved ,

15h15 Li/ps/str03-V steers the beam verticaly "-" UP, "+" Down. Li/ps/str03-H steers the beam horizontaly, "+" <==, "-" ==>
16h44 Laser new position : [5.112, 4.423]

Align QP-Linac
Quad scans : depends on camera settings ...

Matching from calculated twiss in attached file.  

19:10 : End

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

08h55 HV is ON

09h29 Beam is in the ring W/O RF. the receipt loaded:  recipe_recipe_LI_TL_RI_all_20260218_12_34_02.txt (big bump verticaly around IP)

09h30 RF 50 kV, cavity is tuning (to far)

09h41 RF ==> 100 kV. RF Gun phase 21 dg., Sect. att. 2.36 dB, secr. phase 216 dg.  Charges: (ICT) about -100 pC, (BPMs): -115, -110, -134, -115 pC, Linac steerers: H [-0.16 -2.76 0], V [-2.35 3.31 0]

RF ==> 150 kV, ==> 280 kV

09h59 the receipt loaded: recipe_recipe_LI_TL_RI_all_20260218_10_18_05.txt (with small angles around IP)

12h50 receipt loaded: recipe_recipe_LI_TL_RI_all_20260217_09_44_16.txt

16h01 recipe_recipe_LI_TL_RI_all_20260218_12_34_02.txt loaded (see screenshot)

17h25 Stop ThomX

7h50: mise en chauffe en remote (chillers/frigo, modulateur, cyclage)

08h57 HV is on

09h22 Beam is in the ring W/O RF, recipe_recipe_LI_TL_RI_all_20260219_13_17_17.txt loaded

09h25 RF 100 kV

09h42 F gun phase 23 dg., Sect. att. 2.47 dB, Sect. phase 218 dg., charges (ICT): about -100 pC, charges(BPMs): all -105 pC

The receipt saved: recipe_recipe_LI_TL_RI_all_20260220_10_42_56.txt ==> Vert. around IP +3 mm to -2 mm

The receipt saved: recipe_recipe_LI_TL_RI_all_20260220_10_43_52.txt==> Vert. around IP -1 mm to +1 mm

12h17 Standby

13h31 HV is on. Shunt resistors were removed from the dipoles 

14h28 Standby. Shunt resistors of 15.4 Ohm installed

15h09 HV is on. Charge dropped. Laser att. 244 ==>260 to restore 100 pC

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

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

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.

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