8:50 Mise en chauffe modulateur, allumage frigo+chiller

Resisistivete eau: 6,6Mo

9:05 Client2 plant'e => redemarrage

9:45 HV On

Scan charge phase. Max charge=255

Phase E_max 207

Q~ 130pC

Fermeture Iris laser jusqu'a 1mm

Q~100pC

Phase section dispersion min: 103.

TL/BPM.02:

X=1.08

Y=0.7

RMS position: 0.2mm

10:26 Beam in the ring

Optimization of the injection and storage (see fig attached). At the end, injection with no losees!

Preparation for the orbit correction eluminating not working correctors. After several studies and iterations, we suceeded to correct the orbit (see the fig attached). Meanwhile, it seems that the BPM  ri-c2/dg/bpm.04-lib.05 (quite certain as it did not respond to the corrector change) and probably  ri-c1/dg/bpm.04-lib.03 do not give the proper readings. This point should be checked as soon as possible.

Problem with ChD of the ri-c2/dg/bpm.04-lib.05 (see the fig attached). We checked the connection in the rack5. We found that the BPM ri-c2/dg/bpm.04-lib.05 ChA was swaped with ChA BPM ri-c2/dg/bpm.06-lib.05 => Slava changed it. Now it is OK. BUT still ChD stays without signal. The problem is in the casemat probably. To be checked.

Starting the preparation for the first tune estimation. For this, we switched ON the sextupoles (see fig attached). Withour sextupoles, the FFT signal is too "noisy".

Optimization of the injection with the multiparameter optimizer RCDS, work in progress.

Alims IHM is updated by Slava to have separetly hor. and vert. correctors displayed.

18h30 End of the Shift.

8h15 : démarrage de la chauffe (Frigo, Modulateur, laser) 
Problème avec le login operateur (lent) et client1 freeze ==> redémarrage

~9h30 Access to the casemate to fix laser photodiode

The laser energy is 50 uJ

~10h00 Charge-phase scan

Phase Laser gun 130

~10h30 Injection in the ring. The full optimization should be done giben the change in the injection

phase RF section 116 deg. (was 89)

Good transport until the ring and good stability during the day.

12:00 Oscillations betatron observees dans l'anneau avec la cavite tunee and a bit of power ~100 W (see pictures)

Looking to improve number of turns in the cavity... Not possible to store the beam for more than ~10-20 turns.

La cavite a un effet en X (voir image ADC BPM)

We tried to measure the revolution frequency with the BPM connected to the scope. With the first analysis it is ~30*Frev = 499.87 MHz. To be checked. Several phase and freaquency scans with RF cavity. Usually working at 5-7 kW.

19h Machine stopped

9h: Mise en Chauffe modulateur + Frigo + Laser
Il n'y a plus de perte de pression ce matin. La fuite du Solénoide semble avoir été la cause.

10:05 Acces SPR en fosse pour installation dosimetre Radon

Phase Max foc : 133
Phase Emax : 83 environ (sachant que Phase Max foc ~ Phase Q max +/- 2 degrés)
Ekin (@83°) = 4.83 MeV

12:00 Trying new frequency for the ring

More than a 1000 turns

13:20 Storage!!!!!

f=500.415MHz

Fine search for reduce orbit.

Tuned Cavity to Freq.

Cavity voltage 34.48 kV

Freq = 500.4138

Bam storage more than 100000 Turns. Milestone achieved !

Data taking

Cavity voltage 75.0 kV

Cavity voltage 123.0 kV

9h15 Les comptes operateurs etaient restes allumes avec un message d'erreur indiquant que la machine n'etait pas totalement arretee.

Mise en chauffe

9h45 Demarrage Kicker extraction avec MO.

10h15 Cyclage des aimants

10h20 Health check OK (a part les aimants en cours de cyclage)

10h30: Trig

10h40 Arrivee du SPR avec une demande de verification des systemes incendies dans la casemate et les sous_sols!!!! Je leur ai it de voir avec le S. Wurth mais qu'il y avait du faisceau...

11h00 Le SPR avec DEKRA a lance les tests de la centrale incedie. Interlock faisceau!!! Apparement Kevin etait prevenu.

12h15 Tests SPR (qui devaient durer 30 minutes) termines.

Chargement recette  LI_RI_TL test 20221215_16_59_39

12h30 Faisceau tres instable sur TL/SST.02 (cf images jointes: 1 tir et 10 tirs)

TL/DP.01 Courant: 167A

12:55 Chargement recette recipe_recipe_LI_TL_RI_good_20221209_18_44_48.txt

===

1) Établir le transport jusqu'à l'anneau

2) Tentative de stockage dans l'anneau

3) Démarrage/calage en temps du kicker d'extraction pour mieux gérer la sortie du faisceau.

4) Caractérisation du faisceau entrant avec étude de l'effet des fentes (TL/DG/SRH) et recherche d'une optimisation à ce niveau là.

5) Transport jusqu'à la LE

6) Vérification des diags de la LE

7) vérification de la calibration des caméras.

8) Tests nouveaux réglages caméra ACE (TL/DG/SST.02)
 

9:23: Mise en chauffe

9:29 Cycle magnets

10:20 Acces casemate cavite CFP

10:49 Beam ON Phase=268

11:02 Phase RF linac = 109

11:14 Faisceau dans l'anneau

Recette: all_20230616_16_51_29

11:15 Faisecau stocke

11:30 Reglages cavite RF en cours

11:46 10kW dans la cavite CFP

Ring RF Cavity 60kV

Phase 5.41V sur les deux dephaseurs SY

Freq = 500.33MHz

Recherche des X

16:20 Faisceau dans la ligne d 'extraction apres passage dans l 'anneau.

Transmission dans l 'anneau:

75% a l 'injection

35% en stockage

Rapport de charge EL/BPM.01/TL/BPM.04: 20% (compatible avec les valeurs ci-dessus)

Timing WAC.03 -6.93us.

Recette sauvee sous LI_TL_RI_good_20230622_16_21_36

17h15 Perte faisceau Scan charge vs phase + regage dispoersion  refait

8h50 Start of the machine

Laser amplifier was somehow OFF. Very strange situation and not clear why it happen. To be understood.

Call Viktor, who came and start the laser.

Start the beam. No beam. No e- from gun. Call Vincent.

Many instabilities in e-beam signals.

Retuning Linac, attenuator =2.114  for 50 MeV (why ??? calibration problem ?)

Work on orbit correction, starting from natural one. Slight optics tuning. Frequency 500.067 MHz. The hor. tune is 0.18

Small horizontal, small vertical steerers.

At some aatenuator or frequency values, the energy jitter appears and a lot of mistriggers.

Good storage obtained. Recipie saved : recipe_recipe_LI_TL_RI_good_20240301_15_50_35.txt

For TL orbit and Ring Orbit see screenshots.

16.10 Stop machine. Ronic, Daniele need access for FP Cavity.

Start of the machine 9h

Optimization of the beam transport to the Ring.

Work on the lattice of the Ring and search for the revolution frequency.

Attempt to perform teh BBA

At 16h beam is taken by Linac team (CB/JNC)

08h50 Start up of the machine

- Problem  with the vaccum, the valves around the RF cavity are down. Eric came. He checked and the problem is with the cable. it should be changed. Intervention is ongoing.

- The water leakage is detected on teh Ring RF cavity. Intervention of Mohamed and Jean-Noel is needed. Jean-Noel is informed  about the problem.

- Synchro problem. Jitter at FPCavity scope screen. Vincent is working on that.

8h05: mise en chauffe en remote de la machine (modulateur, frigo/chiller, laser)

==> cyclage aimant plante, donc aimant non allumés ni cyclé.

9h All keys are in vertical position. Totes rondes sont tombees. We need help to restart.

Kevin and Vincent came to help.

All systems were started.

We switch on the RF and found problem with the reflected RF power in the gun. Checked the temperature and found that chiller failed to set the proper temperature.

10h10 Restart frigo+chiller

Several restarts but the temperature does not rise. 

After several attempts it is OK

11h Problem with laser, we do nto see the dark current on the ICT1; Try to understand the reason

Laser was not aligned. Kevin helped.

We restarted all the Liberas as they were not in a good state. 

The phase shifter DS was OFF.

11h50 Finally we have the beam in the ring

problem with the RIC1 STR 4 VERT It does not take the command and stays in the orange state. Steerer resistance is 18 Ohm.

12h02 F Gun phase 283 dg. Sect Att. 2.32 dB. Sect. phase 218 dg. Beam charges about -100 pC. Charge devices do not show values

Restart all Liberas because of reading problems

Srudies of the RF freq change. it is clear that it changes the phase of the RF cavity. Not clear if it is OK for th e measurements.

=> It is very important to measure the deltaPhase introduced by the RF transport lines in order to proceed with the measurements.

The vert cteere in the ring shuld be checked/repaired.

Stop for lunch and steerer reparation.

13h20 Jean-Noel came to help and check the steerer. Overvoltage on the PS. Access to the casemat. 

14h11 RIC1 STR 4 VERT fixed by Jean-Noel

14h14 HV is 'ON'

15h Studies of the vetical orbit and its compensation

17h Optics measurements. 

Demarrage modulateur et refroidissement 9h30.

Pb alim quad anneau (Ri-C2-QP6) (profibus 52)remplacement par alim quad EL-QP7 (profibus 16)

11h45 demarrage HT

Charge max (Iris at 2mm) 80pC phase 351

Energie max Charge ICT LI-0.1 64pC

chargé la recette LI-TL-RI_20220919-21_25_56.txt

TL-sst02 Phase section 105 pour minimiser la taille du faisceau

Courant DP 156.5A

faisceau sur SST TL0.3

Charge sur ICT/TL01 68pC

Charge sur ICT/TL02 la meme que sur ICT TL 01 (mesure non implémentée dans dans IHM charge)

entrée de l'anneau

DPI 7.57A

Septum 90V

=> signal sur RIC1-BPM02

Sauts sur TL/SST.02 : les sauts correspondent à une variation de courant de 1.5A sur 158 en nominal. 

16H le modulateur est tombé 4 fois de suite (en 5mn)

8h55 démarrage chauffage Klystron

pression SF6: 2.3 bar  => à besoin d'etre complété

(nb: redémarrage pc modulateur demain mardi 8/10 à 9h00)

le chauffage est reparti à zéro!

10h50

accès casemate.. (avec clés FP) => je laisse le modulateur en standby

Goal: prepare the beam to start the X-ray production

The storage is prepared. Receipt is saved: good_20241007_14_10_04

9h demarrage modulateur et schillers

Cyclage aimants

Asservissement laser ON

10h25 : Scan charge phase

11h Reglage linac

LI/ICT.01 50pC avec iris=2mm

12:00 Ligne deviee: Faisceau instable

12:30 Camera timing scan on TL/DG/SST.01 (see attached plot) + Trying to fix trigger issue on TL/DG/SST.02

14:00 Single shot OTR!!!

15:00 Faisceau stable sur TL/DG/SST01 avec steerer ON mais instable sur TL/DG/SST.02

=> Faisceau instable en energie

16:00 Rechargement de la recette du 19/9 a 21h25 => faisceau dans l 'anneau

16:30 Septum voltage 97V

Debut du second tour oberve sur le scintillateur!

Septum optimum timing=-38us

Kicker timing -7.250us (see attached plot: No effect on RI-C1/BPM.02, strong effect on RI-C1/BPM.03, medium effect on RI-C2/BPM.01)

19:00 Arret

Le modulateur n'est pas tombe de la journee.

Plan for the beam time

1) Start the llinac

2) Scan in time camera LI/DG/SST.01

3) Re-establish beam transport to ring

4) Scan in time the septum

5) Scan in voltage the septum

6) Adjust timing of kicker by looking at induced noise on ICTs

7) Scan in time the kicker

8) Scan in voltage the kicker

9) Adjust steerers as needed...

9:10 Il y a quelqu'un de DEKRA qui deambule seul dans l'IGLEX sans dosimetre. A-t-il ete prevenu du risque?

9:15: La console operateur etait laissee ouverte avec de nombreuses fenetres ouvertes...

9:18 Resistivite eau: 5.5 Mo

Pression air comprime 7 bars.

9:20 Mise en chauffe de modulateur

Heath check OK

9:40 Cyclage aimants

10:40 Beam on

10:53 Scan charge vs phase. Cf plots joints

10:56 Chargement recette test_20221130_17_33_59 ne passe pas la cavite

11:10 Faisceau non trouve dans TL/SST.02

Temperature chiller elevee

11:20 La phase a change

11:30 Realignement mirroir par Viktor.

Cavite desaccordee

11:49 Mise du modulateur en standby

=> attente 30 minutes

11:49 Mohamed a confirme que la cavite RF anneau est detune pour permettre les operations anneau.

11:50 Jean Noel accede a la casemate.

12:15 Scan charge phase demare

12:25 Nouvelle phase charge max: 175

Des claquages pendant le scan.

12:31 Faisecau sur TL/DG/SST1

12:32 Chargement recette test_20221130_17_33_59

12:40  faisceau sur TL/DG/SST.02

Recherche phase section

Charge max LI/DG/ICT.01 > 100pC => Attenuateur laser a 341mm

13:01 Phase section: 95

13:05 Faisceau sur TL/DG/SST.03

Start EP

13:08 Recette sauvee dans all_20221201_13_08

15:35 Modulator crashed + recovered

16:55 Phase section 93. Scan tres bruyant

Difficultes a injecter dans l' anneau.

17:35 Injection dans l 'anneau retrouvee

===

Plan for the beam time:

1) Re-establish transport to the ring

2) Inject in the ring

3) Save ring recipe

4) Check BPMs in AGC mode

5) Check screens calibration

6) Changement mesure taille SST

9:24 Mise en chauffe

9:30 Cyclage des aimants

11h44 Démarrage faisceau

Les positions laser sur le feedback ont changé : hor position = 4.950 et ver position = 2.351

Remise des paramètres de référence :

Laser Iris position  [H;V] : [4.90/2.42mm]

Solénoides position : Z : 3.3mm, -4.9mrad

                                 X : 0.8mm, 10.201mrad

Scan Charge Phase : Energie max = 286 degres

Solenoide : 225 A

Mesure Energie of the electron (MeV) = 50.0260 +/- 0.0027

Energy at the center of the screen (MeV) = 49.9967

Relative energy spread FWHM (%) : 0.1755

13:30 Problème allumage TL/DPi bloque le MPS

14:00 Faisceau dans EL

Sur EL/SST.01 le faisecau semble etre dans une boite qui est sensible au champ des steerers.

Deux images attachees avec EL/DPI=-6.8 et EL/DPI=-7.1

Meilleure recette pour entrer dans l'anneau :  recipe_recipe_LI_TL_RI_all_20230317_15_52_23.txt

Phase RF section 110deg

Attenuateur: 1.94dB

On a reussit a aller jusqu'a ri-C2/DG/BPM.05 mais pas BPM.06

17h32: Arret machine

Matin: Alignement.

Apres midi tentative de voir du faisceau en salle laser.

Faisceau tres faible.

On trouve deux iris dans le chemin optique. Après ouverture, le chemin optique n'est plus bon.

Realignement.

17:35 Arret machine

AM :

git pull sur $HOME_IHM

pression vanne vide : 8 bar
resistivité eau : 7.3 Mohm

Health_check :
Jauge dans l'anneau en erreur : -> verifier quel jauge a été supprimer est les enlever de la verification d'état
RI-C2/PS/STR.02-V.01 :

• En ALARM
• Status :
   port 1 configured as -- no information --  
  SIGMAPHI-6 REMOTE OPERATION 
  Alimentation Port 1 DC OFF 
  Alimentation Port 1 SOFTWARE INTERLOCK 

LI/OP/OPT.02-LAS.01-OSL.01:

• Etat : FAULT
• Status : OK
  Est il pertinant de la conserver dans Health_Check et/ou de considéré que le "state" FAULT revoie une erreur "FAULT" ?

Moteur miroir laser en gris (state inconnu) :

• State : MOVING
  -> ajout de l'état "MOVING" de gravité "OK" dans les fichier de config Health_Check

Pas de soucis empechant le démarrage de la machine !

8h30 : allumage frigo
allumage chiller

8h40: mise en chauffe Modulateur

8h50: allumage laser/ shutter de securuté fermé

10h modulateur démarré

10h30 scan charge phase Qmax 50pC à 275°
Trend mesure phase sortie oscillateur laser ne fonctionne pas (IP http://192.168.229.21)

visualisation OK sur Soft propriétaire

dipole passé 156.6A phase section 108

recharge recette recipe_recipe_LI_TL_RI_20220923_15_07_00.txt

11H

Injection dans l'anneau

13H15 HT modulateur off

14h restart the machine

Nicolas H and Alex L from SOLEIL came to participate in the shift.

Nicolas H configured phase_offset for all Libera to reduce the jutter in the TbtSum signal. After this, the signal became more stable.

Nicolas H, VC, VM and IC measured the jutter of the BPM wrt the injection trigger. it was found that the jitter is 12 ns !!!!! Then, it was also confirmed by measuring the jitter on the scitillator detector signal. This is a big problem, which should be considered/solved asap.

With the help of Alex L, the good transport is done until the last BPM of the Ring (see file attached). The task now is to try to futher correct the trajectory for the second turn. From the vertical orbit we suspect that dipoles could be missaligned at the IP region. To be checked if it is compatibe with the simulations.

Discussion on the allignment of the Ring should be organized to get the last measurement results and understand, what can be done in terms of the correction of the dipole tilts/shifts if it will be needed.

The example of the one possible trajectory is attached.

With the scintillator detector installed near the septum, we see the beginning of the second turn (see file attached). It is useful diagnostics as the BPM will give the evidence of the 3rd turn only (Libera averages the signal from 2 turns).

19h20 Tuning of the trajectory. More or less flat stable trajectory. Work is ongoing.

21h50  End of the shift

AM :

Hier soir : extinction des PC clients1 et clients 2
ce matin : Aucun problème pour l'instant
Ces deux pc devrait être éteint regulièrement pour leurs permetre d'être dans un état optimum (sinon bcp de processus orphelin peuvent les ralentire)

pression vanne vide : 8.4 bar
resistivité eau : 7.4 Mohm

Health_check :
Jauge dans l'anneau en erreur : -> verifier quel jauge a été supprimer est les enlever de la verification d'état

RI-C1/PS/STR.05-H.01 : (Même problème qu'hier)

• En ALARM
• Status :
   port 1 configured as -- no information --  
  SIGMAPHI-6 REMOTE OPERATION 
  Alimentation Port 1 DC OFF 
  Alimentation Port 1 SOFTWARE INTERLOCK 

RI-C2/PS/STR.02-V.01 :

• En ALARM
• Status :
   port 1 configured as -- no information --  
  SIGMAPHI-6 REMOTE OPERATION 
  Alimentation Port 1 DC OFF 
  Alimentation Port 1 SOFTWARE INTERLOCK 

Pas de soucis empechant le démarrage de la machine !

8h30 : allumage frigo / modulateur
allumage chiller
allumage element magnetique Li, TL, ring (sauf septum et kicker) -> cyclage de tout les aimants  lancé
allumage laser

9h15-9h45 : intervention pont roulant
-> prochaine intervention mardi matin ?

9h50 : ronde casemate

9h55 : allumage modulateur
-> tombé a 990V : pb vide

10h :
client 1 planté, plus accessible même en ssh depuis client2 (redamarré en hard)

enregistrement des mesure de puissances sur les Redpitaya

-PiGun DPd03-CHA

-PI LIL RDP-01-CHA

-GunLOOP DPd04-CHA

10h30 Scan charge vs phase; Qmax=271 degree

10:55 Faisceau centr'e sur LI/SST.01: PS/STR01 H=-0.6 V=-0.2

Rechargement recette LI TL RI  20220929 15h30

11h Mise a energie max: 235 degree.

enregistrement de la postion faisceau sur TL/BPM.02 pour correler les variations de position faisceau avec les variations de puissance RF

12h Balayage Septum en temps et en voltage (voir images jointes).

Quads RI-C2 : 09;10 ; 12 OFF. No losses at fiber and signature of the full second turn.  Good signal at ri-c1/BPM01

Need to verify Quads

On last Friday, we found that there is a potential problem with QUAD 9, 10 an 12 as by switching them OFF, we obtained better transport and finally had the evidance of the seconf full turn.

RI-C2/PS/QP.09

RI-C2/PS/QP.10

RI-C2/PS/QP.12

Today, we checked the polarity and found that the polarity of the RI-C2/PS/QP.10 was inversed at the level of power supply (even though was checked last time in July). We have restore the good polarity of the RI-C2/PS/QP.10 by swapping the cables at the PS. 

We plan to check the beam transport in the afternoon.

Shift started at 18h

With the current injector settings, it was difficult to inject.  We loaded the settings from last Friday 30/09 (19-22-04).

Principal steps:

- Correction of the one quadrupole polarity this morning

-injection tuning, observation of Turn-by-Turn-X, Turn-by-Turn-Y and Sum

-quads focusing, defocusing +-.0.5%

-iterative manual adjustments of corrctors, DPI, Septum, Kicker

-orbit correction with open line model response matrix 

- several datasets taken for further postprocessing

Beam is stored !!!!! ~400 turns (limited by the Libera response)

Stored beam, visible  more than 300 turns,  signal decay as estimated  due to Libera cutoff filters. To store more, RF cavity should be used.

Stable closed orbit!

Important milestone is achieved.

No losses at scintillator/fiber except for the injection, see oscilloscope screenshot.

Current machine settings are stored in recipe_recipe_LI_TL_RI_20221003_20_24_01.txt

Orbit is stable for more than one hour. End of the shift.

Modulateur Impossible à passer en Standby ==> problème manque d'eau.

      * Remise à ~4bars le réseau principal

      *  Restart du soft du modulateur (sinon l'erreur reste)

      * Conductivité à 7MOhm

10h : Démarrage modulateur et refroidissement (MO)

Modulateur 1090V, Mise en place du feedback position laser

Scan charge phase avec iris à 4 mm, phase de charge max phi = 366 degres

Iris 4 mm  Qmax sur LI/SST.01 = 80.7 pC std 14.2

Iris 3 mm Qmax = 64.6 std 14.2 pC

Iris 2 mm Qmax = 32.4 std 11.2 pC

Iris 1 mm Qmax = 10.4 std 11.9 pC

Mesure energie avec les steerers : 52 MeV

Chargement recette du vendredi 30/09 (19-22-04)

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

Problème licence matlab :

Warning: Directory already exists. 
> In quad_TLSST1_thomx_Dark_dim_bary_v3 (line 87) 
License checkout failed.
License Manager Error -4
Maximum number of users for Image_Toolbox reached.
Try again later.

Troubleshoot this issue by visiting:
https://www.mathworks.com/support/lme/R2018b/4

Diagnostic Information:
Feature: Image_Toolbox
License path: /data/operateur.thomx/.matlab/R2018b_licenses:/home/debian/R2018B/licenses/license.dat:/home/debian/R2018B/licenses/network.lic
Licensing error: -4,132.

Error in quad_TLSST1_thomx_Dark_dim_bary_v3 (line 154)
        h1=drawrectangle('Position',[length(K(1,:,1))/2-50 length(K(:,1,1))/2/2-50 50 50]);pos = round(customWait(h1));% position signal

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

Faisceau pour anneau

Ouverture iris 2 mm (25 pC environ)

Ouverture iris 4 mm Qenergie max = 66 pC (phi energie max = 216)

Ok pour injection et tours dans l'anneau

Sauvegarde recette recepe_LI_TL_RI

13h13 Recipe saved for the ring. Injection optimised.

14h Camera MRSV non accessible => a verifier dans la casemate

14h05 etude de l' effet de l' iris laser sur LI/DG/BPM.01. Les 4 copies d'ecran correspondent a 4 valeurs d'iris different de 4mm a 1mm.

16h Etude systematique de la position sur LI/DG/BPM.01 vs iris. Cf images jointes.

L'attenuation etait trop forte, a basse charge (iris ferme) la position etait domine par le bruit.

Si l 'attenuation est trop forte (32dB), les mesures saturent. Il faut regler l 'attenuation de LI/DG/BPM.01 a -15dB.

Étude similaire sur TL/DG/BPM.01. Cf images jointes. Il faut regler l 'attenuation de TL/DG/BPM.01 a 0dB.

Arret machine 16h26.

Note: RI-C2/DG/MRSV n'était pas branché. Il va falloir se procurer les câbles correspondants.