1 / 14

Overview of the EMMA Project

Overview of the EMMA Project. Rob Edgecock for the EMMA Collaboration*. *BNL, CERN, CI, FNAL, JAI, LPSC Grenoble, STFC, TRIUMF. EMMA. Outline. Motivation for EMMA How we got to where we are today Requirements EMMA lattices Accelerator Conclusions. EMMA. Neutrino Factory. Motivation.

gutierrezp
Download Presentation

Overview of the EMMA Project

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. Overview of the EMMA Project Rob Edgecock for the EMMA Collaboration* *BNL, CERN, CI, FNAL, JAI, LPSC Grenoble, STFC, TRIUMF

  2. EMMA Outline • Motivation for EMMA • How we got to where we are today • Requirements • EMMA lattices • Accelerator • Conclusions

  3. EMMA Neutrino Factory Motivation • NS-FFAGs invented (Carol, Shane, Scott, etc):  accel • Advantages: • linear FF magnets: large DA, small aperture, HF RF • parabolic ToF: CW (asynchronous, serpentine, etc) accel • Disadvantages: • novel longitudinal & transverse dynamics • rapid tune variations: multiple resonance crossings • Recognised early on (~2004): must build one! • Electron model was cheapest/only option  EMMA • Other possible applications also identified • Following Japanese scaling FFAGs • Helpful for funding

  4. EMMA Model Parameters • Electron model of muon FFAGs: parameters scaled muon  electron • 10-20MeV • few GHz RF • ~40-50 cells (doublets, for cost), multiple of 6 • Needed: • Injector and hall – MP proposed DL & ERLP/ALICE • Funding: 2 possibilities identified in 2005 - FP6 NEST - BT fund  BASROC/CONFORM

  5. CONFORM • Created early 2006 • Submitted BT proposal in July 2006: total cost £8.2M – 80% from EPSRC £5.6M for EMMA construction (+£250k from FP7) • Started 1st April 2007 CONFORM Project leader: Roger Barlow/Man Project manager: Neil Bliss/DL EMMA Proj. leader: RE Proj. Manager: NB PAMELA Ken Peach/JAI Applications Karen Kirkby/Surrey Bob Cywinski/Leeds

  6. EMMA EMMA Requirements • Demonstrate that non-scaling optics work • Study resonances in detail: - emittance growth vs acceleration rate - “ “ vs tune variation - “ “ vs parabola shape - effect of errors - detailed probe using injector • Study longitudinal dynamics in detail: - transmission vs parameter values - emittance growth vs parameter values - tof behaviour; effect of non-parabolic nature - effect of moving parabola - effect of errors • Check effect of transverse dynamics • Compare with predictions • ……………..

  7. EMMA EMMA Lattices • 8 lattices (from Scott): determined machines specs • Probe: - tune diagram - ToF - full transverse aperture – 3πmmrad

  8. EMMA EMMA Parameters • 10-20MeV electrons • Full aperture injection and extraction at any energy • Aperture probed with small emittance beam • 42 doublet cells – di and quad B-fields ind variable • RF: 1.3GHz - variable frequency, gain, phase • Bunch charge – 16-32pC • Cell lengths - total length: 394.481mm - long drift: 210.000mm - F: 58.782mm - short drift: 50.000mm - D: 75.699mm • Circumference – 16.57m • Lots of diagnostics – must measure everything!

  9. EMMA EMMA Layout • Layout almost complete • Hardware design far advanced • Many difficulties, esp. due to compactness • Hard work of many, led by Neil

  10. Two EMMA cells Inside of ring D Cavity F All elements parallel in one cell 210mm

  11. EMMA Conclusions • EMMA – proof of principle NS-FFAG • Important for all future NS-FFAG projects • Layout ~complete • Hardware far advanced • Lots learned for future NS-FFAG design & construction • Good collaborative effort • Beam autumn 09

More Related