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General improvements Upgrades

General improvements Upgrades. Loose collection of items Changed – being changed – to be changed. BPMs: BPR sensitivity – DL BPIs. BPRs 0290 and 0475 have low sensitivity for phase measurement BPR0290: whole range ~8 ADC counts BPR0475: whole range ~32 ADC counts

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General improvements Upgrades

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  1. General improvementsUpgrades Loose collection of items Changed – being changed – to be changed CTF3 working meeting

  2. BPMs: BPR sensitivity – DL BPIs • BPRs 0290 and 0475 have low sensitivity for phase measurement • BPR0290: whole range ~8 ADC counts • BPR0475: whole range ~32 ADC counts • Asked for increase by factor 100/10 if possible • 2 adjacent DL BPIsmissing- 0292/0308 • 0308 taken out toreplace another • 0292 to be checked CTF3 working meeting

  3. BPMs: Gain separation TL1 andCR • Noise on the BPIs in TL1 very high • Set to low gain with attenuator on as in the CR (high current) • Can we separate them for the gain setting? • Can we have thecalibration applicationfor the CR to loadcalibrations fordifferent gain settings? Charge stability – Factor 4 with noise estimate (T.Persson) CTF3 working meeting

  4. BPMs: Sampler • Asked CO for proxy for TL2 and CLEX BPMs • HW trigger of Sampler acquisition to be installed • Properly separated for Drive and Probe beam for CLEX • Should fix timestamp uncertainties • Can we include the droop correction for (DL) BPIs in the real-time software? CTF3 working meeting

  5. LLRF / PLC upgrades • PLC upgrade and software upgrade for phase control • Should avoid slow phase response as we had last year • Includes remote reset of PEI interlock • Start with a few and upgrade gradually • Remote setting of CK.GUN-AUTH RF interlocks • Will need to stop ½ - 1 day beginning of March – during CR safety chain test? • Should be transparent for the control system • PLC upgrade and maintenance of CK.MKS02-ATTN/PHAS • Will fix the limited range for pre-buncher phase • Foreseen for next shut-down CTF3 working meeting

  6. TWTs for SHBs • One back from repair soon with phase droop modification=> should decrease stored energy and improve failure rate • Need to program I/Q modulator to correct phase • Others to be sent one at the time for modification=> still left with two SHBs • New systems will be ordered - one to test, more after success • What to do against changing power level??? Use I/Q amplitude? • On/Off remote indication / switch? CTF3 working meeting

  7. High power RF • Splitter and load being installed for CR RF deflector network=> can optimize deflector bump • New charging supplies for MKS11/MKS15 (+heater supplies)=> can go to higher repetition rate (10 Hz) • MKS PLC control for old CAMAC system in development • Stability of MKL02 (low power) • Install higher power amplifier / wave guide splitter and load? • Install WFG (but standing wave cavity) • New klystron for ACS14 foreseen for next shutdown CTF3 working meeting

  8. Various • Power supply for Frascati bend CT.BHB0205 upgraded • CR/DL light interlocked with access system • Local shielding around DL/CR access door • DL injection region survey campaign next week • Faster radiation level reading for software gun interlock • Can we improve the water station regulation for RF pulse compression? • Segmented dump in CTS line – when? CTF3 working meeting

  9. … CTF3 working meeting

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