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Report from the HEBT working group + Commissioning plan and Schedule

Report from the HEBT working group + Commissioning plan and Schedule. 5th HIE-ISOLDE Physics Coordination Group Meeting D. Voulot on behalf of HEBT and commissioning Working Group 1/4/2014. HEBT layout. Inventory : 22 MQ + 41 PC (22+19 for REX) 4 MB + 4 PC 11 MC + 22 PC (1 per plane).

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Report from the HEBT working group + Commissioning plan and Schedule

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  1. Report from the HEBT working group+ Commissioning plan and Schedule 5th HIE-ISOLDE Physics Coordination Group Meeting D. Voulot on behalf of HEBT and commissioning Working Group 1/4/2014

  2. HEBT layout Inventory : 22 MQ + 41 PC (22+19 for REX) 4 MB + 4 PC 11 MC + 22 PC (1 per plane) • Objectives : • 03/11/14 XT00-XT01 available for tests • 12/01/15 XT02 available for tests

  3. Procurement status • Magnets • All contracts placed; magnet manufacturing budget within estimates • Magnets production in line with prioritised installation planning • Power converters • All contracts placed, some pre-series already at CERN • In-line with planning except for quadrupole power supplies. Second and third batch delayed -> no impact on commissioning planning • Beam Instrumentation • Two types of DB (linac/HEBT) • Some uncertainties in the delivery of the long DBs • Should not affect machine start-up • Vacuum • Vacuum chamber design on-going, delivery Sept-Oct 14 • Most component standard CERN contracts • Support, Infrastructure, Survey • Infrastructure installation on-going • Magnet support installation as of mid-April

  4. Control and software • Control • Warm Magnet Interlock (WIC) • Interlocks for Cryogenics, Vacuum, SCRF • Control hardware (Front End Computers) and timing Specification released, cabling/equipment requested, installation Oct-Nov. 14 • Console application • Use standard BE-CO applications and tools • Working set/knobs • INCA database, TIMBER, DIAMON Specification of low level control on-going with equipment groups • Update existing REX applications • E.g. BI application current and beam profile acquisition • Energy scanner (beam energy and energy spread) Functionalities and layout defined, will be finalised (BE-OP) when the low level controls are available • Only develop new tools when necessary • Linac phase-up • Setting generator • Time-of-flight system On-going, some high level application are already available

  5. Commissioning planning (HEBT and SC linac) • Periodic dry-runs • Periodic test of the machine in realistic conditions (≠ hardware tests) • Start as soon as the first equipment become available (Nov 14?) • Increasing step by step the scope of the dry-runs • Document the progress • Machine ready-to-go date: 24 July 2015 • At this point the machine should be fully operational! • Machine check out: 4 weeks • 1st dry run with all components (including SCRF) • Some buffer time for debugging • Beam commissioning: 7 weeks • Oct 15 -> HIE-ISOLDE Physics

  6. Dry run Check-list Magnets -> Polarity check -> WIC -> Current acquisition -> Field regulation -> Test console applications Beam instrumentation -> Test FC with current source -> Actuator movement -> Interlocks -> Si detector Control -> Test console applications -> TIMBER logging Vacuum Monitor and control REX-HIE vacuum from PVSS application. Cryo Monitor cryogenics from PVSS application. RF -> Remote start/stop of SCRF -> Acquisition of amplitude and phase -> Check NC and SCRF synchronisation * Planning: to be defined according to availability of equipment (new planning) * Prepare individual check-list for each dry-run

  7. Machine check-out If periodic dry-run scheme works: • 27 July 2015 = machine ready for beam • Check that all the systems are ready to go (including SC linac) => max 1 week • Start beam commissioning If not: 4 weeks spare for debugging … if more physics is delayed

  8. Beam commissioning • Stable beam from REXEBIS -> 1/6/2015 • Beam transport through the SC part (solenoids only no RF) and transfer lines at 0.3 MeV/u -> 2 weeks • Commissioning of beam instrumentation with beam -> 1 week • Cross-check of the alignment with beam -> 1 week (optional) • Phase-up of the NC and SC linac using a dipole as energy spectrometer, establish voltage calibration and absolute phase error -> 2 weeks • Establish some base settings for different A/q and energies, measure transmission and energy spread, inject beam through Miniball -> 1 week • A/q scaling test at fixed energy -> 1 week • Beam characterisation: transverse and longitudinal emittances -> 2-3 weeks (optional) • Energy scaling for a fixed A/q (optional) • Test of OP software: setting generator and automatic optimiser (optional) • Energy measurement with TOF system (optional) * Minimum 7 weeks (only mandatory steps) * Full beam characterisation can be postponed to subsequent shutdowns * Some diagnostics and tools are not mandatory for delivering beam

  9. Operation with one cryomodule Between October 2015 and 2015/16 shutdown only one cryomodule (5 cavities) will be available. Can we run with a missing cryomodule? • The beam blows up but remains well inside +/- 20 mm aperture of the magnets • The beam can be matched into the transport channel with the marching quadruplet without losses ±20 mm

  10. Operation with one cryomodule • No replacement optical elements needed, or movement of quads, if there is no second cryomodule in Phase 1. • This assumes that the aperture after the first cryomodule is that of the HEBT at ±20 mm. • Transverse emittance assumed as 0.35 mm.mrad(rather conservative, consistent with measurements). • Max. available energy:

  11. Operation with HIE-ISOLE • Keep current operation scheme • ISOLDE operation team (daytime) • IMS piquet service (night and weekends) • No 24/24 shift • 24/24 CCC supervision (need training of PSB operators) • Supervision of the cryo-plant and SC linac • Cryo-piquet during the first year (expect many intervention) • CCC supervision (TCR) when the system is more mature • RF piquet? (for the moment best effort system, has been working very well) • Need OP team reinforcement (ISOLDE + REX + HIE +TSR?)

  12. HEBT Working group members ANDREAZZA, William (BE-BI-ML) BAUCHE, Jeremie (TE-MSC-MNC) BRAVIN, Enrico (BE-BI-PM) CANTERO, Esteban Daniel (BE-BI-PM) FARANTATOS, Panagiotis (TE-MSC-MNC) FORMENTI, Fabio (TE-HDO) FRASER, Matthew Alexander (BE-RF-BR) GARCIA BORGE, Maria Jose (PH-SME-IS) GARCIA SOSA, Alex (BE-BI-PM) GAYDE, Jean-Christophe (EN-MEF-SU) GODDARD, Brennan (TE-ABT) HANKE, Klaus (BE-OP-PSB) KADI, Yacine (EN-HDO) KAUTZMANN, Guillaume (EN-MEF-SU) KOLEHMAINEN, Antti Juhani (EN-MME-EDS) KOWALSKA, Magdalena (PH-SME-IS) LANAIA, Davide (BE-OP-PSB) LEIBA, Benjamin (EN-MEF) MARTINO, Michele (TE-EPC-HPM) MERTENS, Volker (TE-HDO) MOMPO, Richard (TE-MPE-MS) NICQUEVERT, Bertrand (EN-MEF-QOP) SIESLING, Erwin (BE-OP-PSB) TIMMINS, Marc (EN-MME-EDS) VANDONI, Giovanna (TE-VSC-IVM) VENESS, Raymond (BE-BI-ML) VOULOT, Didier (BE-OP-PSB) ZOGRAFOS, Eleftherios (EN-MEF-INT) HIE Commissioning group members FADAKIS, Eleftherios (BE-OP-PSB) FRASER, Matthew Alexander (BE-RF-BR) LANAIA, Davide (BE-OP-PSB) SANCHEZ ALVAREZ, Jose-Luis (BE-OP-PSB) VOULOT, Didier (BE-OP-PSB) WENANDER, Fredrik John Carl (BE-ABP-HSL)

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