Steve Geer OsC RAL 21 June, 2010 1 Muon Accelerator Program MUON COLLIDER & NEUTRINO FACTORY R&D in...
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Transcript of Steve Geer OsC RAL 21 June, 2010 1 Muon Accelerator Program MUON COLLIDER & NEUTRINO FACTORY R&D in...
Steve Geer OsC RAL 21 June, 2010 1
Muon Accelerator Program
MUON COLLIDER
& NEUTRINO FACTORY
R&D in the U.S.
The MAP Initiative
Steve Geer OsC RAL 21 June, 2010 2
• Muon Collider & Neutrino Factory R&D has been pursued in the U.S. since 1996 by the Neutrino Factory & Muon Collider Collaboration (NFMCC).
•The Muon Collider R&D activity was enhanced in 2006 by the addition of the Muon Collider Task Force (MCTF) at Fermilab.
•In October 2009 the DOE-OHEP leadership requested a new unified national organization (MAP) be put in place, and prepare a proposal for an enhanced R&D program:
-Motivated by recent progress, and an increased interest in a multi-TeV Muon Collider as a possible future facility at Fermilab
Letter from DOE-OHEP Leadership
Muon Accelerator ProgramMAP
Steve Geer OsC RAL 21 June, 2010 3
MAP Organization now in place
“Level 1”
“Level 0”
* L0, L1, L2 Interim assignments
“Level 2”
Steve Geer OsC RAL 21 June, 2010 4
MAP Proposal
● Submitted by Pier Oddone on behalf of the MAP collaboration, 1st March 2010.
● 214 MAP participants (at birth) from 14 institutions:
ANL, BNL, FNAL, Jlab, LBNL, ORNL, SNAL, Cornell, IIT, Princeton, UCB,
UCLA, UCR, U-Miss.
● Anticipate a DOE-OHEP review soon.
Steve Geer OsC RAL 21 June, 2010 5
MAP will pursue both Neutrino Factory & Muon Collider R&D
NEUTRINOFACTORY
MUONCOLLIDER
In present MC baseline design, Front End is same as for NF
Steve Geer OsC RAL 21 June, 2010 6
R&D Common to both NF & MC(from proton driver to initial cooling channel)
Steve Geer OsC RAL 21 June, 2010 7
• Front-End Design & Simulations- Pursued in the context of the IDS-NF- Includes site specific studies for NF/MC at FNAL, including using an upgraded Project X as the proton source (coordinator: Keith Gollwitzer)
• MERIT experiment (Great success – in final analysis phase)
• RF studies for cooling channel cavities operating in magnetic channels
-MuCool Test Area (MTA) program
• U.S. contributions to MICE (see talks tomorrow)
MuCool Test Area
Steve Geer OsC RAL 21 June, 2010 8
MUCOOL Test Area built at FNAL for ionization cooling component testing:
•5T magnet•RF power at 805MHz & 201MHz•LH2 handling capability•400MeV beam from linac
Muon Collider Decision Tree
Pier Oddone
0.5 TeV e+e-
3 TeV e+e-
3-4 TeV +-
Steve Geer OsC RAL 21 June, 2010 9
Muon Collider MotivationC
OS
T
PH
YS
ICS
If we can build a muon collider, it is an attractive multi-TeV lepton collider option because muons don’t radiate as readily as electrons (m / me ~ 207):
- COMPACT Fits on laboratory site- MULTI-PASS ACCELERATION Cost Effective- MULTIPASS COLLISIONS IN A RING (~1000 turns) Relaxed emittance requirements & hence relaxed tolerances
- NARROW ENERGY SPREAD Precision scans, kinematic constraints- TWO DETECTORS (2 IPs)-Tbunch ~ 10 s … (e.g. 4 TeV collider) Lots of time for readout Backgrounds don’t pile up- (m/me)2 = ~40000 Enhanced s-channel rates for Higgs-like particles
A 4 TeV Muon Collider wouldfit on the Fermilab Site
Steve Geer OsC RAL 21 June, 2010 10
Beam Energy Spread
Beamstrahlung in any e+e- collider
E/E 2
Steve Geer OsC RAL 21 June, 2010 11
MAP Goals
● Deliverables in 6-7 years:-Muon Collider Design Feasibility Report (FY16)- Hardware R&D results → technology choice- MC Cost range (FY16)- Also contributions to the IDS-NF RDR (FY14)
● Will address key R&D issues, including- Maximum RF gradients in magnetic field- Magnet designs for cooling, acceltn, collider- 6D cooling section prototype & bench test- Full start-to-end simulations based on technologies in hand, or achievable with a specified R&D programSteve Geer OsC RAL 21 June, 2010 12
Impact of the MAP Plan
Key component m
odels
NOWMAP PLAN
+ NFRDR
Muon Collider Development
Steve Geer OsC RAL 21 June, 2010 13
Evolution of Support
NFMCCNFMCC
+MCTF
InterimMAP
MAP
Last coupleof years
NOW(FY10)
FY11
~4 M$ ~9 M$ ~10 M$ ~15 M$ (requested)(~19 M$ enhanced plan)
First~10 years
Steve Geer OsC RAL 21 June, 2010 14
Physics, Detector & Background Studies
● In addition to MC accelerator R&D, a parallel but coordinated effort is foreseen on physics & detector studies:
-Machine-Detector Interface group within MAP will generate machine background files for, and “interface” with the physics-detector activity. - Physics-detector studies leader will participate in MAP “management council”.
● Detailed detector & Background studies from ~10 yrs ago gave encouraging results. A lot has happened since:
- New MC lattice design- A decade of detector development-Greater community expectations for detector performance
● New physics, detector, background studies begun:- Kick-off workshop at FNAL November 2009.- Rapid progress since then on shielding design (shielding cone angle reduced from 20deg to 10deg).-Active detector simulation group now being created.-Working towards an initial report ~mid-2011.
Steve Geer SPC FNAL 17 June, 2010 15
International Aspects
● Neutrino Factory R&D is pursued in an international framework: IDS-NF
- The MAP community is committed to making the required contributions to IDS-NF studies
● Muon Collider R&D is pursued mostly in the U.S.
- Making it more international would be a good thing- The MICE facility is potentially a wonderful asset for longer term Muon Collider R&D
● Had some good initial experience with joint Fermilab-UK accelerator R&D fellowships focused on muon accelerator R&D areas:
-The UK host has been Imperial College - Helps build R&D relationships in areas of common interest (e.g. MuCool RF R&D program, proton source issues, …)
Steve Geer OsC RAL 21 June, 2010 16
Summary
● There is a new U.S. organization (MAP). The proposed MAP plan is designed to:
-Continue support of the ongoing program (including U.S. commitments to MICE and the IDS-NF-Within the next 6-7 years find out whether a Muon Collider is feasible, and roughly what it would cost (cost range).
● The U.S. motivation for MAP is coupled to a muon-based vision for the long-term future of Fermilab.
● International collaboration on the R&D for these very ambitious but game-changing future accelerator facilities is very desirable
-Has been very good for the NF R&D program-Would be very healthy for Muon Collider R&DSteve Geer OsC RAL 21 June, 2010 17
ADDITIONAL SILDES
NFTo DUSEL
A Vision for the Future at FNAL
Steve Geer OsC RAL 21 June, 2010 18