1 / 19

Simulations of an ‘isochronous’ non-scaling FFAG

Simulations of an ‘isochronous’ non-scaling FFAG. FFAG workshop, Trinity College Oxford , 2011. Suzie Sheehy. 1. 1. ADS. ‘Accelerator Driven System’ Cost Safety Proliferation Waste. 2. Scaling FFAGs & EMMA are a great success! We have a good technology Let’s use it!. 3. 4.

courtney
Download Presentation

Simulations of an ‘isochronous’ non-scaling FFAG

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Simulations of an ‘isochronous’ • non-scaling FFAG FFAG workshop, Trinity College Oxford, 2011 Suzie Sheehy 1

  2. 1

  3. ADS • ‘Accelerator Driven System’ • Cost • Safety • Proliferation • Waste 2

  4. Scaling FFAGs & EMMA are a great success! • We have a good technology • Let’s use it! 3

  5. 4

  6. Beam trips • Source: ADS White paper, ‘Accelerator and Target Technology for Accelerator Driven Transmutation and Energy Production’, 2010 5

  7. Reliability • Source: Updated version of data based on that of J. Galambos at HB2010 Analysis suggests a number of different sources cause beam trips - (-D. Findlay) This is not a simple problem! 6

  8. Reliability • [Burgazzi & Pierini 2007] • “The current operational experience at accelerator facilities worldwide surely exceeds by a great factor these requirements on the allowed accelerator faults, but none of the existing accelerators has been until now designed with similar demanding requirements” • “The table highlights the sensitivity of the reliability values to the number of cavities/sections. This stems directly from the reliability analysis rules which predict the product of the single reliability values for series wise configuration” 7

  9. Reliability-oriented design • component over-design • redundancy • fault-tolerance What about number of components?? 8

  10. Design & parameters 9 Design by C. Johnstone et al.

  11. Field profiles F D 10

  12. ZGOUBI results • Verified: • closed orbit positions • time-of-flight variation (isochronicity) • tunes vs. energy 11

  13. Dynamic aperture x’ • Single particle dynamic aperture • Amplitudes in both x/y y’ x y x’ y’ x y 12

  14. Space charge • OPAL ‘Object Oriented Parallel Accelerator Library’ • Massively parallel • 3D space charge • Interacting orbits Watch this space! 14

  15. Longitudinal Dynamics Phase slip is currently too large for stationary bucket! (even at h=1) 13

  16. More practical issues… Laser H- stripping injection? What about extraction?? PSI 590 MeV cyclotron has four 1MV RF cavities at 50.633MHz Radial aperture at least 2.35m (Rext – Rinj) Max line power 4*520kW 15

  17. Click to add title? 16

  18. Thanks to: • C. Johnstone, M. Berz, F. Meot • ASTeC IB Group • 1851 Commission 18

  19. References • S. L. Sheehy, Dynamics of a novel isochronous non-scaling FFAG, to appear in Proceedings of the International Particle Accelerator Conference, Bilbao, September 2011. • S. L. Sheehy, Space charge studies of a 1 GeV isochronous non-scaling FFAG proton driver, to appear in Proceedings of the International Particle Accelerator Conference, Bilbao, September 2011. • H. Ait Abderrahim, J. Galambos et al., Accelerator and Target Technology for Accelerator Driven Transmutation and Energy Production. • L. Burgazzi and P. Pierini, “Reliability studies of a high-power proton accelerator for accelerator-driven system applications for nuclear waste transmutation”, Reliability Engineering and System Safety 92 (2007) 449–463 • C. Johnstone, Non-scaling FFAG designs for ADSR and Ion Therapy, presented at FFAG’10, KURRI, Japan. [http://hadron.kek.jp/FFAG/FFAG10_HP/slides/Thu/Thu05Johnstone.pdf] • C. Johnstone, M. Berz, K. Makino and P. Snopok, Innovations in Fixed-Field Accelerators: Design and Simulation, In Proceedings of Cyclotrons ’10 • C. Johnstone, M. Berz, K. Makino and P. Snopok, Isochronous (CW) Non-Scaling FFAGs: Design and Simulation, AIP Conference Proceedings 1299, pp. 682-687, Nov. 2010. [http://dx.doi.org/10.1063/1.3520412] • B. Rimmer, Accelerator Costs, ADSR Workshop 2010, VTech 19

More Related