Status of MICE
MUTAC March 2006 at FERMILAB
MUTAC Fermilab Alain Blondel 16 March 2006
1
THE MICE COLLABORATION
140 collaborators
Universite Catholique de Louvain, Belgium
University of Sofia, Bulgaria
INFN Milano, INFN Napoli, INFN Roma III, INFN Trieste, Italy (*)
KEK, Osaka University, Japan
NIKHEF, The Netherlands
CERN
Geneva University, Paul Scherrer Institut Switzerland
Brunel University, Edinburgh, Glasgow, Liverpool, ICL London, Oxford, Darsbury, RAL, Sheffield
Argonne National Laboratory. Brookhaven National Laboratory, Fairfield University,
University of Chicago, Enrico Fermi Institute, Fermilab, Illinois Institute of Technology,
Jefferson Lab, Lawrence Berkeley National Laboratory, UCLA, Northern Illinois University,
University of Iowa, University of Mississippi, UC Riverside,
University of Illinois at Urbana-Champaign USA
(*) Larger participation from INFN may be possible
INFN Pavia, Bari, Padova are close too to the INFN detector/DAQ effort for MICE
INFN Laboratori Nazionali di Frascati did and will work in the accelerator physics of MICE
INFN Genova has designed with Ansaldo the two tracker solenoid magnets
MUTAC Fermilab Alain Blondel 16 March 2006
2
UK
NEWS
1 Italian participation: Approval in principle
(subject to a number of succesful milestones)
of TOF construction and MUCAL
2. New collaborators: Sofia U., Kyoto U., Cockcroft Inst.& Lancaster University
3. DAQ group started
4. Analysis group started
5. Design and safety reviews have progressed --H2 safety review was passed
6. KEK tracker test successful -- but revealed light loss issue
7. We begin purchasing big items (cooling plan for PSI solenoid, spectrometer solenoids)
8. Final bits of phase 1 design being finalized (MUCAL, downstream PID)
9. Funding agency committee meetings instituted (19 september 2005, 10 April 2006)
10. we have 380 days to official data taking date (1 April 2007)
MUTAC Fermilab Alain Blondel 16 March 2006
3
Summary:
at this point MICE (PhaseI) is an approved and funded project in
6
countries
-- UK: 9.7M£ + rolling grants + CCLRC
-- USA: funding from the NFMCC (DOE baseline scenario 4.125M$)
+RF source + NSF grant 300k$ + MRI grant 750k
+ (further requests submitted)
-- Japan: US-Japan ~$100k/yr, UK-Japan (travel funds)
(+ 1M$ requested)
-- Switzerland: PSI solenoid + Uni-Geneva-NSwissF (80KCHF/yr)+ 1 PDA+1PhDS
+ Bulgaria collaboration + CERN RF.
-- Netherlands: Mag probes (in production!) + 1 PhDS
-- Italy (TOF, Calorimeter) subject to success of test
MUTAC Fermilab Alain Blondel 16 March 2006
4
10% cooling of 200 MeV/c muons requires ~ 20 MV of RF
single particle measurements =>
measurement precision can be as good as D ( e out/e in ) = 10-3
never done before either…
Coupling Coils 1&2
Spectrometer
solenoid 1
Matching
coils 1&2
Focus coils 1
Focus coils 2
Focus coils 3
Matching
coils 1&2
Spectrometer
solenoid 2
m
Beam PID
TOF 0
Cherenkov
TOF 1
RF cavities 1
Variable
Diffuser
Incoming muon beam
RF cavities 2
Downstream
particle ID:
TOF 2
Calorimeter
Liquid Hydrogen absorbers 1,2,3
Trackers 1 & 2
measurement of emittance in and out
MUTAC Fermilab Alain Blondel 16 March 2006
5
Challenges of MICE:
(these things have never been done before)
1. Operate RF cavities of relatively low frequency (201 MHz) at high gradient
(16 MV/m) in highly inhomogeneous magnetic fields (1-3 T)
dark currents (can heat up LH2), breakdowns
2. Hydrogen safety (substantial amounts of LH2 in vicinity of RF cavities)
3. Emittance measurement to relative precision of 10-3 in environment of RF bkg
requires low mass and precise tracker
low multiple scattering
redundancy to fight dark-current-induced background
excellent immunity to RF noise
complete set of PID detectors
And…
4. Obtaining funding for R&D towards a facility that is not (yet) in the plans of a
major lab
MUTAC Fermilab Alain Blondel 16 March 2006
6
implementation in steps
m
-
STEP I:
physics-based:
understanding of
systematics
April 2007
STEP II:
October 2007
PHASE I
STEP III: 2008
STEP IV: 2008
PHASE II
STEP V
2009
STEP VI
end 2009?
MUTAC Fermilab Alain Blondel 16 March 2006
7
TARGET DATE: 2010
2010 will be a time
of major decisions
in particle physics
LHC will be completed
first results will appear
ILC 
first results from
MINOS, Opera
double-CHOOZ &
other reactor expts.
might be available.
T2K starting
It will be time for the
next step
in neutrino physics!
It will be important that
practical feasibility of
ionization cooling
be MUTAC
demonstrated.
Fermilab Alain Blondel 16 March 2006
Barry Barish, CERN SPC sept05
8
By 2010-2011 we should have a clearer idea of the value of q13
The facility needed to find and measure leptonic CP violation is
different -- or differently optimized
if
sin2q13 > 0.01 :small CP, large statistics
or
sin2q13 < 0.01 : large CP, small statistics
MUTAC Fermilab Alain Blondel 16 March 2006
9
1. getting ready for Step 1
target and target test
PSI solenoid
beam line calculations
diffuser
beam line instrumentation (TOF, CKOV1)
tracker situation
Calorimeter
2. Step 2
the spectrometer solenoid
3. Step 3
essential test of systematics
learning process start with optics.
4. step4
AFC module
LH2 R&D, safety review
absorber thickness and monitoring
5. step 5,6 RF cavitiy, RF power source, coupling coil
E field thickness and monitoring
Getting funded for steps 5,6
MUTAC Fermilab Alain Blondel 16 March 2006
10
MUTAC Fermilab Alain Blondel 16 March 2006
11
actuator:
MICE Target
ISIS pulses at 50Hz
with flat top for ~2ms
Electromagnetic driver
dips target in beam
and out
in ~3ms
reproducibility
(5A drive…
will need 40A!)
Target test
MUTAC Fermilab Alain Blondel 16 March 2006
originally foreseen in Jan06
will be done in June06.
detector to monitor hadron prod.
crucial to undertand:
-- does it all work?
-- what is the ratio of
hadron production/activation 12
decay solenoid at RAL
decay solenoid at PSI
MUTAC Fermilab Alain Blondel 16 March 2006
13
p
e
1p
240
200
140
6p
10p
KW-Dec05
CR-CM13
DA-Feb06
KT-Feb06
CR(G4BL)Sept
DA-Aug 05
CR-Jan06
DA-Dec05
KT-CM13
easier – almost scales
Beam should deliver a variety of norm. emittances (from 1 to 10 mm.rad)
with central beam momentum between 140 to 240 MeV/c.
getting there:
harder – maintain lattice geometry
1. how many diffuser plates do we need?
2. Correction scheme being worked out.
Corrector magnets from ISIS target station order
could be purchased
3. diffuser mechanism being developed
less than 30 minutes changeover of diffuser -->
MUTAC Fermilab Alain Blondel 16 March 2006
14
200 MeV/c matched optics
match to beam size and divergence in diffuser
within spectrometer solenoid
200 MeV/c
scaled optics
140 MeV/c
scaled optics
MUTAC Fermilab Alain Blondel 16 March 2006
15
TOF and downstream PID
TOF is constituted of double layer of 4X40 cm scintillator
each layer expected to yield 70 ps resolution,
double layer will measure resolution
scintillator and tubes for TOF0 have been bought
for test at the Frascati BTF in june 2006
Downstream PID
potential uncertainty on cooling
due to muon decays
eliminate problem by
high efficiency muon tagging
electron rejection
MICE Proposal: Cherenkov + Calorimeter
Cherenkov2 could not be funded --> what would be performance without Cherenkov?
good enough with a SANDWICH CALORIMETER ALONE
simulations show 99.9% efficiency at >99.8% purity for all momenta in MICE stepVI
--> will undergo change control procedure (check with non-flip mode)
test in July 2006 with small calorimeter
MUTAC Fermilab Alain Blondel 16 March 2006
16
Step 3
B
Crucial step for MICE.
ICOOL
EVBETA
optics matched
Try to inset absorbers to
see if cooling is seen.
Much more to be learned by
full simulation
and muon-by-muon analysis
MUTAC Fermilab Alain Blondel 16 March 2006
17
Step IV:
need Absorber + Focus Coil module!
SAFETY REVIEW was passed-- some actions left for MICE *)
“The Panel is impressed by the serious way in which the
MICE collaboration is approaching safety issues and was
pleased to note the excellent progress made since the last
review in December 2003.
Our overall impression, based on the presentations, is that
there are no serious safety issues that have not been
addressed.
*) in particular Hazop analysis will be performed
by external consultants
MUTAC Fermilab Alain Blondel 16 March 2006
18
PHASE II Funding
MICE note 137
MZ MUTAC05
revised GOAL
1. RAL has released 100k£ from project sponsor (PPD director)
‘tracker’ items redistributed towards Spectrometer solenoids
(swaps with US, Japan)
2. Collaboration with D0 on tracker electronics
2. MRI proposal to NSF for a coupling coil (for MUCOOL)
and NFMCC/MUCOOL has made a request to DOE for the same.
3. We tried CH for CC, plan to include ‘MICE completion’ in EU funding bids (FP7)
efforts towards RFCC module in UK (Cockcroft institute+Lancaster U.)
4. RF seems OK:
*** 201 MHz RF cavity ***!
+ RF source from LBNL -->Daresbury
MUTAC Fermilab Alain Blondel 16 March 2006
+ RF source from CERN
19
1. Publications
Since June 2005 MICE has a Editorial Board (Chair Dan Kaplan)
Tracking of historical publications is difficult, but at least 20 referreed journal
publications were counted in winter 2005.
7 abstracts accepted at EPAC2006
2. Students
We are coming to the point where data and experimental results
will come at a high rate.
--> This is a great time for PhD students!
They already ‘took over the software projects’
Play a high role in detector tests (KEK beam test --> Frascati test)
MICE is relatively short of manpower!
MUTAC Fermilab Alain Blondel 16 March 2006
20
An important credit:
The US developed the first credible concepts for both the muon collider and the
neutrino factory through the pioneering work, in particular, of David Neuffer,
Robert Palmer and Steve Geer, as well as through two detailed feasibility studies.
The concept of the MICE cooling cells is based upon the US Study II, and the
actual magnetic layout of the experiment is the result of Robert Palmer’s ideas.
US groups have provided the lion’s share of the R&D work for the cooling channel
modules so far, and have also been actively involved in developing the beam line
optics, the overall simulation of the experiment, and the tracker.
The construction and first operation of the MICE-compatible 201-MHz RF cavity
prototype is a great MICE milestone!
In addition, our US colleagues have already shipped to RAL parts for two 201-MHz
RF power sources that should, after refurbishment, provide half of the RF needs of
the experiment.
The planning prepared by NFMCC provides MICE with a US contribution to the
MICE magnet system that will allow the US collaborators to play the role they
rightly deserve. This contribution is vital for the success of the experiment!
MUTAC Fermilab Alain Blondel 16 March 2006
21
MICE is getting REAL!
FIRST BEAM IN 380 DAYS
Final PID:
TOF
Calorimeter
Demonstrate feasibility and performance
of a section of cooling channel by 2010
4T spectrometer II
Cooling cell (~10%)
b=5-45cm, liquid H2, RF
Status:
Approved at RAL(UK)
First beam: 04-2007
Funded in: UK,CH,It,JP,NL,US
Further requests: JP,UK,US…
4T spectrometer I
Single-m beam
~200 MeV/c
TOF
Liquid-hydrogen
absorbers
Prototyping:
Scintillating-fiber
MUTAC Fermilab Alain Blondel
tracker 16 March 2006
target spring
200MHz RF cavity
with beryllium22
windows
PHASE I
MICE proposal
m
STEP I:
-
1 April 2007 = 380 days away!
may become
m
and is likely to feature:
need to finalize positions of
TOF0
CKOV1
MUCAL
+ size and detailed segmentation of MUCAL
STEP I.5
STEP II:
aim is October 2007
MUTAC Fermilab Alain Blondel 16 March 2006
23