DOE 90705

1
Fourth Annual LEMC Workshop A Few Closing
Remarks Rolland Johnson Muons, Inc.
2

• Progress? Lots! Some examples
• Technology Development
• HTS magnets
• MANX or first HCC section prototype magnet made
  and studied NbTi
• First engineering of the most challenging
  high-field HTS HCC component
• HTS materials - Fiber Optic Quench protection
  etc. feasibility
• RF Cavities
• Computer Models and Handbook for HPRF Aficionados
• First doping studies support models (which imply
  beam capability)
• Beam to the MTA
• New solutions for RF in HCC
• Dielectric loaded RF
• Traveling wave solutions
• Targetry
• 8 MW capability inferred from real data!

3

• Progress? Some examples
• Technology Development (cont.)
• New funding for enabling components e.g.
• Phase-locked magnetrons
• RF windows for high-power SRF couplers
• Saddle antenna for H- source at SNS
• 50 T Solenoids
• 30 T Helical Solenoid
• MANX following MICE and Mu2e Upgrade
  proposals presented to AAC
• Favorable reviews
• Awaiting Fermilab response

4

• Progress? Some examples
• More participation by larger MC community (we
  need much more!)
• 79 Registered LEMC participants
• Great Theoretical Motivational Talks
• Are we ready for a Z ?
• Experimental Detector Involvement
• An intriguing new detector concept
• Can we instrument the 20 degree cone?
• Our Congressman has encouraged us!

5

• Progress? Some examples
• Simulations, Models, and Inventions
• New HCC simulations show impressive 6-D cooling
• More conservative frequencies and apertures
  1034 still looking good
• Parametric-resonance Ionization Cooling key to
  LEMC!
• Epicyclic PIC invention seems to overcome fringe
  field and D problems
• G4Beamline model working, ready for development
• Particle Refrigerator
• Li lenses
• Ramping Magnets to enable more RF cavity
  traversals
• Well seduce those ILC and CLIC guys yet with
  affordable use of SRF
• More variations on and extensions to U Miss
  concept

6

• Progress? Some examples
• New Synergies
• HEP uses for muon cooling techniques
• Mu2e experiment
• Homeland Security
• Muons for Special Nuclear Material (SNM)
  detection
• (new SBIR proposals with LANL)
• Advanced Research Project Administration Energy
  (ARPA-E)
• Accelerator-Driven Subcritical (ADS) Power
  Generation, and
• Nuclear Waste Disposal (ATW)
• ARPA-E to help fund and expedite more powerful
  Project-X?
• To make sure MC and NF needs are met?

7
How to Fund a Muon Collider (by Solving
Important Problems Along the Way) Rolland
Johnson Muons, Inc.
ask not what your country can do for you - ask
what you can do for your country J. F. Kennedy,
Jan 20, 1961
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Ultimate GoalHigh-Energy High-Luminosity Muon
Colliders

• precision lepton machines at the energy frontier
• achieved in physics-motivated stages that require
  developing inventions and technology, e.g.
• high-power 8-GeV H- Linac (CW with AR BRs)
• stopping muon beams (HCC, EEXwHomogeneous
  absorber)
• neutrino factory (HCC with HPRF, RLA
  in CW Proj-X)
• Z factory (low
  Luminosity collider, HE RLA)
• Higgs factory (extreme cooling, low beta,
  super-detectors)
• Energy-frontier muon collider (more
  cooling, lower beta)

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A Vision of Good Things  

• Developing a prototype ADS SRF linac would be
  extremely significant.
• It would demonstrate to a broader electorate
  the relevance of accelerator science to society
  (So what have you done for us lately?).
• It would generate enthusiasm and support for
  even more RD (think Manhattan Project),
• and getting back the energy frontier with a
  muon collider (think national pride).
• It would provide a unifying framework to
  energize accelerator development within the DOE
  (e.g. HEP, NP, BES, and ARPA-E) on national
  goals.
• We might even solve the worlds energy problems
  for the next 10,000 years
• and learn to reduce greenhouse gases and
  unwanted climate changes.
•  
•  

10
More Good Things (lots of work to do!)  

• Muons, Inc. just received 7 new Phase I awards.
  There are posters for each
• HOM Absorbers (Cornell),
• Quasi-isochronous Decay Channels (Fermilab),
• DC Gun Insulators (JLab),
• H-minus Ion Source (SNS),
• High-power Coaxial Couplers (Jlab),
• High-field YBCO Magnets (FSU),
• Phase and Frequency-locked Magnetrons for SRF
  (Fermilab)
• Five Phase II proposals are pending
  (announcements July-August)
• High-Pressure RF (Fermilab)
• Fiber Optics for HTS (FSU)
• Pulsed RLAs (JLab)
• RF Breakdown (LBNL)
• Rugged RF Windows (JLab)
• Two DTRA proposals just submitted with Hampton
  University
• Two contracts in the works
• Fermilab to help with Project-X development
• PNNL to help develop a photon beam concept for
  Homeland Security

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My Proposal The next MC Design Workshop should
produce an on-line proceedings (not just
viewgraphs). The contents of which should be a
compendium of supporting documents for a muon
collider conceptual design. So where should this
December meeting be held? It has been fruitful
meeting! I have the sense that we are coming
together with a better sense of purpose and are
on the verge of acting coherently, having been
produced with power, collected, cooled, and
coalesced. Have a safe trip home. Thanks for
coming!