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Secondment at TRIUMF

Secondment at TRIUMF. High level Matlab application for cavity phase up Davide Lanaia (BE-OP). Outline. ISAC II overview Operation with SC cavities Main application used @ ISAC II Application developed ISAC II and HIE ISOLDE Conclusion. ISAC II @ TRIUMF. Energy: 2 < E < 16 MeV/u

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Secondment at TRIUMF

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  1. Secondment at TRIUMF High level Matlab application for cavity phase up Davide Lanaia (BE-OP) Davide Lanaia (BE-OP)

  2. Outline • ISAC II overview • Operation with SC cavities • Main application used @ ISAC II • Application developed • ISAC II and HIE ISOLDE • Conclusion Davide Lanaia (BE-OP)

  3. ISAC II @ TRIUMF • Energy: 2 < E < 16 MeV/u • Beam: 2 <= A/q <= 7 • SC Linac Injector: OLIS (ECR type, stable beam) ISAC target station (RIB) • Beam current: 1nA < I < mA for stable beam Davide Lanaia (BE-OP)

  4. Overview of ISAC Complex SC (ISAC II) 40 SC cavities QWR 16.5 MeV/u for A/q =2 DTL (ISAC I) 106.08 MHz 150 keV < E < 1.9 MeV 85% transmission RFQ E < 150 keV/u A/q < 30 Pre-bunched beam at the third sub harmonic of the RFQ resonant frequency OLIS: supernanoganmulticharge ion source amu <150 A/q <6 ISAC Target station Davide Lanaia (BE-OP)

  5. ISAC Energy Performances Davide Lanaia (BE-OP)

  6. SC Cavities and cryomodule • 4 cavities in the first 5 cryomodule (phase1) • 6 cavities in the next 2 cryomodule • 8 cavities in the last cryomodule • Typically run at max voltage ≃ 1 MV Davide Lanaia (BE-OP)

  7. Operation @ TRIUMF • General: • Shift work with two operators per shift • 8 hours shift per day • Supervise beam delivery in ISAC I & II • Only ISAC I tuning • ISAC II tuned only by experts 8 hours average time for tune from scratch • Controls • Linux based environment • EPICS control system for more commons applications • Special application developed mainly in Matlab when EPICS can not match the requirement (ISAC II phase up, emittance measurement, Si Det. Interface) Davide Lanaia (BE-OP)

  8. Main Applications for ISAC II • Vacuum • Synoptic Davide Lanaia (BE-OP)

  9. Main Applications for ISAC II • Optic All the elements are displayed sequentially on different pages Remote control for all the Elements For each element expert page Davide Lanaia (BE-OP)

  10. Main Applications for ISAC II • Diagnostic • Mainly Farady Cup • Optimize transmission • Possible to see graphs of the current Davide Lanaia (BE-OP)

  11. Main Applications for ISAC II • SC Cavities: • Auto on • Off/Reset • Manual On • Control in phase and amplitude Davide Lanaia (BE-OP)

  12. Main Applications for ISAC II • SC Cavity page • Full RF control • Coupler control • Tuner control • Interlocks control Davide Lanaia (BE-OP)

  13. Application Developed • T.O.F for high precision energy measurement • 3 TOF strategically placed after the linac • Beam intercepting wire grounded cylinder, MCP assembly on a linear actuator • Si detector for cavities phase up • Limit of the Si detector: • Age quite fast • Needs of calibration • Does not work perfectly for all the energies • Matlab application for both Davide Lanaia (BE-OP)

  14. Application Developed • Request: phase the linac with info coming from the TOF system. Bypass of the Si detector • Including features from the TOF application (energy calculation & errors) and from the Si det application (phase up, zero degree phase) • Developed in Matlab, interfacing EPICS • The application was tested with A/q = 6, 5 MeV/u Carbon beam from OLIS Davide Lanaia (BE-OP)

  15. Application Developed Signal from TOF (Gaussian fitted) Acquisition & Cavity Input Panel Energy Box Sigma Box Centroid Box Davide Lanaia (BE-OP)

  16. ISAC II & HIE-ISODLE Davide Lanaia (BE-OP)

  17. Acknowledge • Klaus Hanke (CERN) • Didier Voulot (CERN) • Marco Marchetto (TRIUMF SC linac expert) • Jane Richards (TRIUMF control group leader) • Juan Pong (TRIUMF control expert) • Spencer Kiy (TRIUMF operator) Thank you for your attention Davide Lanaia (BE-OP)

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