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Beam Line 4N

Beam Line 4N. ARIEL Science Workshop July 10-11, 2012. Y. Bylinski | Accelerator systems | TRIUMF. Outline. Facility layout Beam parameters Design features Cyclotron upgrade requirements Schedule considerations Cost and resources estimate Summary. ARIEL Facility Layout.

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Beam Line 4N

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  1. Beam Line 4N ARIEL Science Workshop July 10-11, 2012 Y. Bylinski | Accelerator systems| TRIUMF

  2. Outline • Facility layout • Beam parameters • Design features • Cyclotron upgrade requirements • Schedule considerations • Cost and resources estimate • Summary Y. Bylinski ARIEL Workshop

  3. ARIEL Facility Layout Y. Bylinski ARIEL Workshop

  4. BL4N Tunnel Cross-section Protons Electrons Y. Bylinski ARIEL Workshop

  5. Beam Parameters Requirements • Energy – 470-500 MeV • Intensity – 1-100 μA • Beam losses < 1 nA/m. • Beam size at the target 2-10 mm (FWHM) • Uniform beam density distribution on the target • Beam spot position instability < 1mm • Intensity instability <1% Y. Bylinski ARIEL Workshop

  6. BL4N design features • Original design was done by Rick Baartman in 2009 • Main features: • Transport capacity: 200 A • Beam dump capacity: 200 A • Achromatic design • Compensation of cyclotron’s dispersion and foil move • Collimation of large angle scatters from foil (up to 1 μA) • Collimation of beam halo due to energy dispersion • Moderate aperture - 71 mm and small beam size < 15 mm • Low loss beam transport and easy access to all optics • Dedicated matching section to control beam size on target • Beam rastering on target with AC steerers at 500 Hz Y. Bylinski ARIEL Workshop

  7. Beam envelope (original design) Y. Bylinski ARIEL Workshop

  8. BL4N Layout Achromatic 68º bend Periodic section Beam dump Achromatic 90º bend Collimators Y. Bylinski ARIEL Workshop

  9. BL2A BL4 BL2C BL1A Cyclotron Capability Last decade routine operation: 220-250μA extracted Recently achieved: • MuSR program & 500 MeV isotopes: • BL1A (120μA) • ISAC program: • BL2A (100μA) • Sr production: • BL2C (80μA) • Total (300μA) Y. Bylinski ARIEL Workshop

  10. BL2A BL4 BL2C BL1A Future Needs for Beam Long term needs: • MuSR program, UCN & • 500 MeV isotopes: • BL1A (120μA) • ISAC program: • BL2A (100μA) • BL4N (<100μA) • Sr production: • BL2C (100μA) • Total (<420μA) Y. Bylinski ARIEL Workshop

  11. Cyclotron Upgrade & Development Needs • New extraction probe • 15-20% more RF power (RF distribution upgrade) • Ion source upgrade to 1mA high brightness beam • Centre region diagnostics upgrade • Simultaneous extraction of 4 high intensity beams • Total extracted beam intensity to reach ~400 μA • Intensity stabilization for multiple extracted beams Y. Bylinski ARIEL Workshop

  12. Time Line Constraints • Cyclotron vault work: 2-3 shutdowns • Old front-end cleanup • New front-end installation • Beam dump construction • New extraction probe installation • BL installation in the tunnel: 4-6 months • Electron beam line re-configuration • Electron beam delivery interruption • Early installation for cyclotron development: • Ex probe • Beam dump Y. Bylinski ARIEL Workshop

  13. Manpower (5YP estimate) • Physicists 24 • Engineers 120 • Designers 80 • Machine shop 75 • Controls 30 • Technicians 240 • Outside contractors 21 • Total: 590 men-months Y. Bylinski ARIEL Workshop

  14. Budget estimate • 3 benders and 20 quads can be salvaged • Rest of BL optics/PS 2100 k$ • Vacuum equipment 300 k$ • Diagnostics & probe 500 k$ • Beam dump 500 k$ • Infrastructure 500 k$ • Controls 400 k$ • Total equipment budget: 4.3 M$ Y. Bylinski ARIEL Workshop

  15. Summary • Basic BL4N design has been done and meets requirements • Equipment first order count allowed budget estimate • Detailed design has to be started ASAP • Project may spread over 3+ years or/and seriously impact beam delivery schedule • Early start of installations in cyclotron vault is recommended to allow time for cyclotron development • Cyclotron upgrade activities are being coordinated with ARIEL proton beam needs Y. Bylinski ARIEL Workshop

  16. Y. Bylinski ARIEL Workshop

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