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Beam Instrumentation Consolidation Plan for LS2

This document outlines the plans for beam instrumentation consolidation in the LS2 phase, including the orbit measurement system, BCCCA, and target BTV. It also covers the cost estimate for these activities and the timeline for implementation.

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Beam Instrumentation Consolidation Plan for LS2

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  1. AD-CONS Cost & Schedule reviewBeam instrumentation L. Søby, L. Warming Jørgensen Special thanks to the contributions of S. Burger, M. Fernandes,

  2. Outline • Orbit measurement system • BCCCA • BTV for target AD-CONS Cost & Schedule review 21-09-2018

  3. New Orbit measurement system • Measurement of orbits all along the deceleration cycle, when beam is bunched • Resolution <100um • Acquisition system based on VXS card with FMC-ADC, developed BE-RF • Support highly appreciated • Status • Operational since > 1 year • Similar system as ELENA and LEIR • Spares produced in 2018, MDDS spares 2019 • Code 64515: 2018: 91kCHF, 23kCHF 2019 IBIC2015 - ProceedingsMelbourne, Australia A New Orbit System for the CERN Antiproton Decelerator http://accelconf.web.cern.ch/accelconf/ibic2015/papers/tupb058.pdf AD-CONS Cost & Schedule review 21-09-2018

  4. BCCCA Bayonet Connection • Status • Current and intensity measurement provided at end of cycle • Fully integrated in FESA • Expert GUI has been developed • PLC system available to control cryogenic system Helium Vessel Beam Tube IBIC2015 - ProceedingsMelbourne, Australia A Cryogenic Current Comparator for the Low-Energy Antiproton Facilities at CERN Thermal Shield CCC http://accelconf.web.cern.ch/accelconf/ibic2015/papers/mopb043.pdf Outer Jacket AD-CONS Cost & Schedule review 21-09-2018

  5. BCCCA Limitations • Measurement only possible at end of cycle (due flux-jump at injection) • Study improvement in slew-rate limitation • Modify coupling circuit in SQUID cartridge / add EM filter inside cryostat (to be studied) • Integration with Vistar • Superconducting connection in DC coupling circuit kept only for limited range • Currently compensated by imposing a constant DC current • Replace SQUID cartridge with improved niobium wire connections (to be studied) • Cryogenic availability • LHe circuit becomes contaminated blocking the He gas flow in the closed-circuit • He diffusion through ceramic breaks degrades insulation vacuum AD-CONS Cost & Schedule review 21-09-2018

  6. BCCCA Costestimate for LS2 activities • Code 64516: 2018: 81kCHF, 31kCHF left 2019: 20kCHF, 2020: 11kCHF • Cryogenic(2019): 10kCHF • Spare turbo pump: 3500 CHF • Regulatedgasvalve: 3500 CHF • Other componentes: 2000 CHF • Electronics(2019): 10kCHF • New cartridgeand SQUID: 5000 CHF • New sparefront-endelectronics+box: 1000 CHF • Cable for cryostatinstrumentation: 1500 CHF • B-train / white-rabbitconversion: 2500 CHF • Other (2020): 11kCH AD-CONS Cost & Schedule review 21-09-2018

  7. New Beam Profile Monitor in front of the AD target • CHROMOX screen • 500um thick • Fixed IN beam @ 45 degrees • Possibility of fast remote exchange p Beam • Beam parameters: • 26 GeV/c • 1.5*1013ppp • 0.7x0.7 mm2 • 450 ns pulse • 2*1018 POT •  Beam density <1E13p/mm2 Courtesy of R.Ferriere, C.Y.Mucher, E.Grenier-Boley S. Burger See M. Calviani’s talk this afternoon AD-CONS Cost & Schedule review 21-09-2018

  8. New Beam Profile Monitor in front of the AD target • BTV Study (2) : Camera location • Radiation map study done (thanks to J.Espadanal & V.Vlashoudis EN-STI-BMI) •  Camera location defined by radiation limits measured at CHARM on BASLER cameras in 2016 B.196 B.196 T6 T6 Courtesy of V.Clerc • Camera to be installed in building 196 through T6 stairs • 4 carrotages are needed Carrotage AD-CONS Cost & Schedule review 21-09-2018

  9. New Beam Profile Monitor in front of the AD target Spending profile: Code 60779: 30kCHF (EN-STI): 2018: 5kCHF, 2019: 25kCHF AD-CONS Cost & Schedule review 21-09-2018

  10. Summary • Orbit measurement system • Operational • 23kCHF will still be needed in 2019 for spares • CCC • Consolidation of cryogenics and electronics in LS2 • Target BTV • Budget On EN-STI code • Will be installed end LS2 AD-CONS Cost & Schedule review 21-09-2018

  11. BCCCA Planfor LS2 consolidation Beam Instrumentation End of 2018 (2 week) • Identifysource of flux-jumpatinjection • Re-measuresystem response, andassessmaximumachievableslew-rate 2019 • Design new SQUID cartridge, fabricateitandmeasure in laboratory (to bediscusses) • Installnewcryostatinstrumentation cable andintegratecommands in PLC 2019/2020 • Installnew SQUID cartridgewhencryostatwarmorkeepitas spare • Installnew B-train / whiterabbitreceiver Preliminary Cryogenics End of 2018 (1 week) • runcryotests Begin 2019 (2 months) • warmupandsearch for source of impurity • open cryostatinnervessel via CF port in AD-ring • testreliquefier in thecryolab Frommay 2019 (2 months) • afterrestart of LHe central reliquefier • 2 months of fullcryotests in AD-ring End of 2020 (1 month) • Testperiodbeforerestart of AD operations AD-CONS Cost & Schedule review 21-09-2018

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