KD; Mise en place Ligne X 
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Aujourd'hui (09/06/2023), la Table1 de la ligne X est mise en position faisceau. Je l'ai approximativement alignée dans le faisceau.
Le cablage du pico1 (XLI/OP/TMD.01) est le suivant :
- ch1: diode écran fluo (XLI/OP/TMD.01/I1) |
KD; RE: Mise en place Ligne X
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hier et ce matin la ligne a été re-réglé.
La table optique a été déplacé d'environ 1cm vers le canon pour s'aligner un peu mieu à la sortie
CFP. |
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IC, VM, SC, JH, VC, ND; Summary of the ring commissioning meeting
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Excitation (betatron oscillation) on the beam observed by exciting it with the extraction kicker => initial measures of the tune.
Tune measured close from expected value.
Reason for oscillation damping is not understood. |
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IC, VK, VM, SC, ND; Summary of the ring commissioning meeting
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Notes from last week:
Beam was very unstable (probably energy instabilities), lot of time was spent tuning the injector.
Beam instabilities prevented
us from having a good storage.
Unable to start the extraction line dipole.
Comments: |
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IC, VK, VM, LS, JH, SC, ND; Summary of the ring commissioning meeting
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Report from last week:
- Attempted the strategy suggested by Alex
- Comparison of orbit with RF ON and RF OFF helped understand the "natural" frequency of the ring: 500.33MHz |
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IC, VK, VM, LS, JH, MB, ND; Summary of the ring commissioning meeting
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Comments:
* There are strong evidences that part of the frequency problem comes from mechanical issue
* Fring field of the dipoles seems to be longer than anticipated. This could lead to shortening of the orbit. |
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IC, VK, VM, JH, ND; Summary of the ring commissioning meeting
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- Went up to 100kV in the cavity once it was tuned.
- Achieved nice storage stable for 2500 turns and some beam for > 100ms
- Measured the tune: several peaks around 0.35[1] (near the expected value) and one peak not understood at 0.5 |
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IC, VK, VI, VC, JH, HG, ND ; Ring objectives
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This entry is to be updated as the work progresses.
1) Re-establish beam transport to ring
2) Scan in time the septum |
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IC, VK, VI, VC, JH, HG, ND ; RE: Ring objectives
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(1), (2), (4) and (5) from last week have been done other items in progress.
New to do list:
(0) Re-establish beam transport to ring |
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IC, VK, VI, VC, JH, HG, ND ; RE: RE: Ring objectives
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New to do list:
(0) Re-establish beam transport to ring
(0bis) Check energy jitter in TL/BPM.02 and TL/SST.02 |
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IC, VK, VI, VC, JH, HG, ND ; RE: RE: RE: Ring objectives
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To do list:
(0) Re-establish beam transport to ring
(0bis) Check energy jitter in TL/BPM.02 and TL/SST.02 |
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IC, VK, VI, VC, JH, HG, ND; Summary of the ring commissioning meeting #1
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Status slides presented by Iryna available on indico at https://indico.ijclab.in2p3.fr/event/8749/
The beam parameters required for a good injection in the ring were discussed.
The following required parameters were identified: |
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IC, VK, VI (ND); Summary of the ring commissioning meeting #3
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Shift summaries for the ring for last week are at
https://elog.lal.in2p3.fr/THOMX/Commissionning/568
https://elog.lal.in2p3.fr/THOMX/Commissionning/570
https://elog.lal.in2p3.fr/THOMX/Commissionning/571
The
problem with the pulse jumpis with 12ns delays has been identified and fixed (it was related to the synchronisation system).
The main issue identified |
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IC, VK, LS, JH, ND; Summary of the ring commissioning meeting
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=== Summary of last week:
- Frequency was reduced to 500.0202MHz but the beam stayed only for 100s of turns
- Good storage was achieved at 500.40MHz: |
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IC, VK, AM, VC, ND; Beam requirements for the ring
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The following parameters are required for ring operations:
- At least 50pC on TL/DG/ICT.01 with std <20pC
- At least 20pC on TL/DG/ICT.02 with std <20pC |
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Hayg; RE:
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Pour info :
client 1 ne fonctionne pas encore. Il n'a pas été utilisé depuis longtemps, Guillaume a été prévenu
pour y jeter un oeil.
Client 3 et 5 sont maintenant aux places qui n'ont qu'un seul écran. Une MAJ de la salle devra être |
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Hayg; WC tests TANGO
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CALC/DG/MeanStd_charge1/ER_CA_rac.05-elr.01-WAC.03_Ch0_chargeMean
CALC/DG/MeanStd_charge1/ER_CA_rac.05-elr.01-WAC.01_Ch0_chargeMean
CALC/DG/MeanStd_charge1/ER_CA_rac.05-elr.01-WAC.02_Ch0_chargeMean
CALC/DG/MeanStd_charge1/ER_CA_rac.05-elr.01-WAC.02_Ch3_chargeMean
CALC/DG/MeanStd_charge1/ER_CA_rac.05-elr.01-WAC.02_Ch4_chargeMean
Dans les variables MeanStd :
Charge 1 :
er_ca_rac.05-elr.01-wac.01_Ch0_chargeMean
Charge 2 :
er_ca_rac.05-elr.01-wac.02_Ch0_chargeMean
er_ca_rac.05-elr.01-wac.02_Ch3_chargeMean
er_ca_rac.05-elr.01-wac.02_Ch4_chargeMean
Charge |
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Hayg; RE: WC tests TANGO
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Hayg
wrote:
CALC/DG/MeanStd_charge1/ER_CA_rac.05-elr.01-WAC.03_Ch0_chargeMean
CALC/DG/MeanStd_charge1/ER_CA_rac.05-elr.01-WAC.01_Ch0_chargeMean
CALC/DG/MeanStd_charge1/ER_CA_rac.05-elr.01-WAC.02_Ch0_chargeMean
CALC/DG/MeanStd_charge1/ER_CA_rac.05-elr.01-WAC.02_Ch3_chargeMean
CALC/DG/MeanStd_charge1/ER_CA_rac.05-elr.01-WAC.02_Ch4_chargeMean
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HM MO; redemarrage 17 aout 2022
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9h30 redemarrage HM MO
- niveau 1 verifié (circuit eau, air comprimé, etat modulateur et SF6)
- ronde modulateur faite |
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Entered by bruni from 134.158.195.142 on Wed Jul 8 14:32:48 2020; test moteur solénoide en charge
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Prise de mesure relative entre les deux bobines : 18.7cm avec les alimentations éteintes mais du refroidissement.
Mise en route des alimentations 80A sur la contre champ, et 275 sur la focalisante.
Prise de mesure à nouveau : 18.7cm --> ca n'a pas bougé |