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Prototype cavity proposal

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Other accelerator-based scientific facilities. Key component high-gradient cavities: ... Graham Gosling (ICL/Mech.Eng.) Begun detailed design of tuning mechanism ... – PowerPoint PPT presentation

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Title: Prototype cavity proposal


1
Prototype cavity proposal
2
Development of capability
  • CCLRC/PPARC seeks to position UK strategically
    w.r.t.
  • International Linear Collider
  • Neutrino Factory
  • Other accelerator-based scientific facilities
  • Key component high-gradient cavities
  • Develop manufacturing capability
  • Neutrino Factory application
  • Proton driver
  • Front-end 234 MHz, RFQ, buncher cavities,
    chopper
  • Could be SC linac SPL (352 MHz), FNAL (1.3 GHz),
  • Synergy with ILC
  • Phase rotation, buncher and cooling channel
  • Require large aperture ? low frequency
  • Transport solenoidal channel ? cavities operate
    in strong B field
  • Use warm cavities at low (200 MHz 300 MHz)
    frequencies

3
Focus on MICE cavities
  • Development of capability
  • Benefits of MICE cavity construction
  • Significantly enhance MICE programme
  • High-profile UK-based international accelerator
    RD experiment
  • Bring forward Phase II (cooling measurement)
  • High impact
  • Ambitious, but achievable, timescale required
  • Design, manufacture, commissioning in 2 3 years
  • High return (capability)
  • Carry out programme in international context
  • MICE is an international collaboration, likely
    collaboration between LBNL, FNAL, GVA, UK to
    produce module
  • High visibility

4
MICE RFCC module
5
Critical issue surface finish
6
Collaboration
  • So far
  • US LBNL (some advice/contact from/with JLab)
  • UK IC Phys/Mech.Eng., advice and contact from
    CCLRC, RAL and DL
  • Proposal
  • Cavity
  • US LBNL, FNAL (MuCool, MTA), JLab?
  • UK IC, CCLRC, HPRF Faraday (E2V, Shakespeare)
    Cockroft
  • Note Industrial CASE application ICL/HPRF
    Faraday submitted
  • Coupling coil
  • GVA
  • Timescale
  • Submit October/November

7
Outline of proposal
  • Design, manufacture and commission 201MHz cavity
  • Operate in magnetic field ?
  • Resources
  • PPARC Capital, some staff, student
  • RDA Non-recurring expenses
  • CCLRC Expertise, i.e. staff time
  • In kind equipment (network
  • analyser, pump?, coupler?)
  • MICE High-power test stand
  • Could be DL or MTA (FNAL) depends on schedule

8
Design update
  • Graham Gosling (ICL/Mech.Eng.)
  • Begun detailed design of tuning mechanism
  • 8 (rather than 6) tuners
  • Hydraulic activation
  • Modular construction
  • Motivated by ease of assembly and maintenance
  • May lend itself to staged build

9
Figures from GG
  • Iteration n-1 as GG on vacation

10
Next steps
  • Lead authors
  • S.Bowater (HPRF), K.Long (ICL), R.Saviour (CI)
  • First draft by MICE collaboration meeting
  • 22Oct05
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