P Marten ESLSRF Oct 8th9th 2023 The Diamond Light Source 2 P Marten ESLSRF Oct 8th9th 2023 Overview of present RF System Reliability Faults IOT Operating Hours DiamondII Upgrade Introduction ID: 1042100
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1. Diamond RF System -Present Status and Diamond-II Upgrade
2. P Marten, ESLS-RF, Oct 8th-9th 2023The Diamond Light Source2
3. P Marten, ESLS-RF, Oct 8th-9th 2023Overview of present RF SystemReliabilityFaultsIOT Operating HoursDiamond-II UpgradeIntroduction3
4. P Marten, ESLS-RF, Oct 8th-9th 2023Diamond – The Accelerators 4BeamlinesLinear AcceleratorBooster SynchrotronStorage RingThe “Machine”Diamond House
5. P Marten, ESLS-RF, Oct 8th-9th 2023Linac (Pulsed)2 KlystronsBooster (CW) – 2 Cavities80 kW IOT60 kW Ampegon SSA Storage Ring (CW) – 2 SC Cavities, 3 NC Cavities3 x 300 Kw, each consisting of 4 x 80 kW IOTsOne 300 kW amplifier split to supply 2 NC Cavities120 kW Cryoelectra SSA for recent 3rd NC CavityRF Test Facility80 kW Ampegon SSA – Cavity test and conditioningThe Present RF System5
6. P Marten, ESLS-RF, Oct 8th-9th 2023SR Cavities6SC CavityNC Cavity
7. P Marten, ESLS-RF, Oct 8th-9th 2023Reliability of the RF System & Diamond7
8. P Marten, ESLS-RF, Oct 8th-9th 2023RF Trips/Run82023-12023-22023-32023-4
9. P Marten, ESLS-RF, Oct 8th-9th 2023RF Amplifier Beam Trip Faults9ISCs x 5DA 2:1 failedDA 2:1 water flow -> DebrisTBWAT-12:TOUT -> ThermostatFOC 1:3 VHM -> Control signal cable
10. P Marten, ESLS-RF, Oct 8th-9th 2023RF Faults: Non-Operational10Booster 1 RF “ISC” -> IOT Input CavityTuner Hi limit switch3rd NC Cavity wave guide switchBooster SSA 24V interlock PSUSystem 3 IOT cooling Inverter VSDLoad Arc NC Cavity 3 load
11. P Marten, ESLS-RF, Oct 8th-9th 2023IOT Input Cavity: Ceramic Breakdown11
12. P Marten, ESLS-RF, Oct 8th-9th 2023Inside Input Cavity12
13. P Marten, ESLS-RF, Oct 8th-9th 2023Booster 2: SSA Interlock 24V PSU13No ferrules
14. P Marten, ESLS-RF, Oct 8th-9th 20233rd NC Cavity: Waveguide Switch14
15. P Marten, ESLS-RF, Oct 8th-9th 2023E2v IOT Operating Hours15
16. P Marten, ESLS-RF, Oct 8th-9th 2023Diamond-II Upgrade16Diamond-I:RF is concentrated in one areaAmplifiers in RF hallCavities in single RF straightDiamond-II:RF Cavities can be distributed in pairs around available mid-section straightsNew beamline can be installed in present RF straightSeven mid-section straights are availableInstallation of most new amplifiers is possible with no impact on operating RF
17. Compact SSA for Diamond-IISpecification for six SSAs for Diamond-II included a requirement to fit into available space between CIAsFive tenders received, all compliantDecision made on a range of technical and commercial criteriaWinning tender has been notifiedOrder for 6 SSAs has been placed with CryoelectraDLS to provide circulator and loadAmplifier unitsCombinerTransmission lineCirculator and loadServicesP Marten, ESLS-RF, Oct 8th-9th 202317
18. P Marten, ESLS-RF, Oct 8th-9th 2023Cavity layout18A new beamline will be installed in what is now the Diamond-I RF straightCavities must move to mid-section straightsCryostat cannot fit in shorter straight and provide clearance for front endsHOM-dampers of NC cavity can fit around a modified front-end supportSpace must be provided for amplifiersEasier to fit multiple smaller amplifiers than smaller number of large amplifiers
19. P Marten, ESLS-RF, Oct 8th-9th 2023Booster Cavity Tuner range19
20. Booster RF – Frequency ShiftP Marten, ESLS-RF, Oct 8th-9th 202320Diamond-II Frequency (499.51059 MHz)
21. Frequency Issues – BoosterP Marten, ESLS-RF, Oct 8th-9th 202321New CST results after tuner modification
22. P Marten, ESLS-RF, Oct 8th-9th 2023New DLLRF Tests on NC Cavity22
23. P Marten, ESLS-RF, Oct 8th-9th 2023SLED cavity upgradeTo run 2 structure from one klystron and therefore improve resilience against system failuresOngoing Projects – Linac SLED23SLED Cavity
24. P Marten, ESLS-RF, Oct 8th-9th 2023Ongoing Projects – Linac Gun24New pulser upgradeTo upgrade gun output and flatness and get the ability to run multi-bunch top up
25. P Marten, ESLS-RF, Oct 8th-9th 2023Conceptual design has been identified500MHz RF frequency7 normal conducting cavities7 solid state amplifiersDigital LLRF in microTCA formatThird harmonic cavityNext stepsInstall platforms for SSAsModify booster tuner with spacerFinalise third harmonic cavity choiceDiamond RF GroupPengda Gu, David Child, Marco Marziani, Peter Marten, Shivaji Pande, Adam Rankin, Anton TroppSummary25
26. P Marten, ESLS-RF, Oct 8th-9th 2023Thank you for your attention26