ELENA Commissioning operation ELENA beam commissioning Operation 12112015

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ELENA: Commissioning & operation • ELENA beam commissioning • Operation 12/11/2015 T. Eriksson CERN

ELENA: Commissioning & operation • ELENA beam commissioning • Operation 12/11/2015 T. Eriksson CERN BE/OP/AD 1

General planning 12/11/2015 T. Eriksson CERN BE/OP/AD 2

General planning 12/11/2015 T. Eriksson CERN BE/OP/AD 2

General installation planning 12/11/2015 T. Eriksson CERN BE/OP/AD 3

General installation planning 12/11/2015 T. Eriksson CERN BE/OP/AD 3

Commissioning key dates (baseline) So far and imminent: • AD ejection line modification &

Commissioning key dates (baseline) So far and imminent: • AD ejection line modification & validation: completed / in operation • Kicker pulse generators tested • Ion source installation & initial tests: completed • Ion source & Ion switch commissioning: early 2016 (Feb/Mars. ) • 1: st part of AD to ELENA transfer line: could this be done during 2016 AD start-up ? (April. ) EPC/Vacuum ? 12/11/2015 T. Eriksson CERN BE/OP/AD 4

Beam commissioning key dates (baseline) • ELENA ring HW installation & tests completed by

Beam commissioning key dates (baseline) • ELENA ring HW installation & tests completed by 5/7/2016 – All equipment tested incl. controls/SW • Ring commissioning with Ions & Pbars (ppm) 5/7 – 14/11 2016; ~ 4 months. Pbar shift plan with AD users • Ion operation could continue >14/11 if compatible with shutdown work • 2016 physics run ends 14/11, by this date we will know more about: – – Deceleration efficiency Beam cooling performance Emittances Lifetime • => decision point for new ejection line installation 12/11/2015 T. Eriksson CERN BE/OP/AD 5

ELENA setting-up 1 • 100 ke. V protons @ 1 Hz, ring in normal

ELENA setting-up 1 • 100 ke. V protons @ 1 Hz, ring in normal polarity & reverse direction: – Finalise set up of xfer line from source: need BTV: s, BPM – First injections & circulating beam: need ring BPM: s, tune msmnt, Schottky system – Orbit/tune/coupling/chromaticity: validation of systems, corrections: need RF – Acceptance check/studies: need scraper system – Lifetime/blow-up rates – Lattice validation with orbit response msmnts – Study effects of e-cooler solenoids – Acceleration tests & ramp corrections: further RF setup needed incl. B-train – Repeat at intermediate & top plateau 12/11/2015 T. Eriksson CERN BE/OP/AD 6

ELENA setting-up 2 • 100 ke. V H- @ 1 Hz, ring in normal

ELENA setting-up 2 • 100 ke. V H- @ 1 Hz, ring in normal polarity & normal direction: – Set-up e-cooler – If H- lifetime is too short: use protons, ring in reverse polarity & normal direction, additional corrections might be necessary later for pbar operation due to remanence effects – Recombination detection (protons), additional tool for alignment/tuning – Extensive use of scraper system for profile and emittance msmnts – Schottky analysis for long. Emittances – Cooling time studies – Lifetime/blow-up rates 12/11/2015 T. Eriksson CERN BE/OP/AD 7

ELENA setting-up 3 • 100 ke. V protons or H- @ 1 Hz, ring

ELENA setting-up 3 • 100 ke. V protons or H- @ 1 Hz, ring in reverse or normal polarity & normal direction: – Initial setting-up of the extraction and ejection lines (only short sections installed at this stage for main and GBAR lines) – Need u-wire monitors + high sensitivity intensity msmnt pickup in lines 12/11/2015 T. Eriksson CERN BE/OP/AD 8

ELENA setting-up 4 • 5. 3 Me. V pbars @. 01 Hz, ring in

ELENA setting-up 4 • 5. 3 Me. V pbars @. 01 Hz, ring in normal polarity & normal direction: – Set-up transfer line from AD : need BTV, GEM, TFA 7049, BPM. (optics validation) – RF synchro s-u for bunch to bucket transfer – Ramp studies: orbits, tunes, slope – Further e-cooler set-up – Set-up of nominal cycle; obtain nominal emittances – Bunched beam cooling @ extraction 12/11/2015 T. Eriksson CERN BE/OP/AD 9

ELENA setting-up 5 • Further studies with pbars: • Space charge studies on higher

ELENA setting-up 5 • Further studies with pbars: • Space charge studies on higher intensity bunches (extraction on lower harmonics); compatibility with ejection lines • Deceleration efficiency > 60% ? • Synthetic B-train, validation for use in regular operation • => ELENA ring commission complete – ~4 months total time available – Overly optimistic ? 12/11/2015 T. Eriksson CERN BE/OP/AD 10

ELENA setting-up 6 • New transfer lines: 18/8 – 10/10 2017 • 100 ke.

ELENA setting-up 6 • New transfer lines: 18/8 – 10/10 2017 • 100 ke. V pbars or H– Setting-up of ~ 100 m electrostatic xfer lines – u-wire “semi-non-destructive” profile monitors – Set-up of deflectors used for fast switching between experiments – Set-up of beam request/distribution SW/HW • 2 months available 12/11/2015 T. Eriksson CERN BE/OP/AD 11

Operation Sequencing 1/3 § Based on ADE sequencing concepts § ELENA will have a

Operation Sequencing 1/3 § Based on ADE sequencing concepts § ELENA will have a virtual super cycle § ELENA cycle can be: • Coupled to the Production Chain (beam from ADE) • Standalone mode (beam from source) § Goals § Optimize the beam request in the beam production chain § Maximize the beam availability for experiments § Maximize the MD beams § Bunches destination «On Demand» and prioritized 12/11/2015 ELENA Project Review - S. Pasinelli CERN BE/OP

Sequencing 2/3 12/11/2015 ELENA Project Review - S. Pasinelli CERN BE/OP

Sequencing 2/3 12/11/2015 ELENA Project Review - S. Pasinelli CERN BE/OP

Sequencing 3/3 12/11/2015 ELENA Project Review - S. Pasinelli CERN BE/OP

Sequencing 3/3 12/11/2015 ELENA Project Review - S. Pasinelli CERN BE/OP

Bunches Extraction Timings 12/11/2015 ELENA Project Review - S. Pasinelli CERN BE/OP

Bunches Extraction Timings 12/11/2015 ELENA Project Review - S. Pasinelli CERN BE/OP

Constrains • No more action on the ADE from experiments • Enable/disable extraction kicker

Constrains • No more action on the ADE from experiments • Enable/disable extraction kicker • Static settings in the Common Transfer Lines 12/11/2015 ELENA Project Review - S. Pasinelli CERN BE/OP

Operation Manpower • Commissioning (immediately after AD start-up): – – – Op-team will work

Operation Manpower • Commissioning (immediately after AD start-up): – – – Op-team will work from ACR AD start-up/operation + ELENA commissioning in 2016 2 shifts per day can be covered, (weekends) by team of 7/8 Eq. specialists will also participate (EN, TE, BE/ABP etc. ) External help is welcome, discussions underway. • Once AD/ELENA operational stability obtained: – Machine supervisor from BE/AD/OP team will look after the machines during day-time and be on-call on weekly basis 24 h/24, 7 d/7 – BE/OP/PS section will do routine operation + initial troubleshooting from the ccc during nights and weekends – Equipment groups ensure “piquet” or best-effort coverage – Note: yearly AD start-ups are very time-consuming, with ELENA even more so 12/11/2015 T. Eriksson CERN BE/OP/AD 17