1MICE FAC open session 23-04-2010 Alain Blondel

MICE

The International Muon Ionization Cooling Experiment

2MICE FAC open session 23-04-2010 Alain Blondel 2

ISIS

MICE Hall R5.2

3MICE FAC open session 23-04-2010 Alain Blondel

MICE beam line hardware is complete and MICE hall ready for next steps!

4MICE FAC open session 23-04-2010 Alain Blondel

Incoming muon beam

VariableDiffuser

Beam PIDTOF 0, TOF 1

Cherenkovs

Trackers 1 & 2

Liquid Hydrogen absorbers 1,2,3

Downstreamparticle ID: TOF 2, KL

EMR

RF cavities RF power

Spectrometer solenoid 1

Spectrometer solenoid 2

Coupling Coils 1&2

Focus coils

MICE Collaboration across the planet

5MICE FAC open session 23-04-2010 Alain Blondel

University of Sofia, Bulgaria

The Harbin Institute for Super Conducting Technologies PR China

INFN Milano, INFN Napoli, INFN Pavia, INFN Roma III, INFN Trieste, Italy

KEK, Kyoto University, Osaka University, Japan

NIKHEF, The Netherlands

CERN

Geneva University, Paul Scherrer Institut Switzerland

Brunel, Cockcroft/Lancaster, Glasgow, Liverpool, ICL London, Oxford, Darsbury, RAL, Sheffield, Warwick UK Argonne National Laboratory, Brookhaven National Laboratory, 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, Muons Inc. USA

THE MICE COLLABORATION -130 collaborators-

6MICE FAC open session 23-04-2010 Alain Blondel

Recent news

Many achievements during the last 6 months:

-- completed beam line and -- running routinely with excellent collaboration with ISIS.-- completed most of detector systems-- observed muon beam routinely -- online reconstruction and first measurement of emittance -- intensity of beam getting close to required for steps I-IV-- published first paper using MICE beam (TOF paper) -- preparing a beamline paper

-- welcomed new collaborators (University of Chicago Young Kee Kim et al-- devised new absorbers -- construction of RF cavities

-- but some trouble with magnets schedule slip.

7MICE FAC open session 23-04-2010 Alain Blondel

Spectrometer Solenoids situation

As described at CM26 the next attempt to run the “magnet 2” has led to a failure in the area of the low temperature current leads. It is becoming clear that the technological choice of cooling these rather large magnets with cryocoolers (cheaper and less space-consuming than a large fridge) requires near perfection in both design and execution.

Investigations are continuing. Measurements were made to establish the heat loads and the Helium consumption – they are found higher than anticipated. The magnet is now open for inspection.

A number of steps are being taken -- To increase/stabilize personnel working on the magnets both at LBNL and at RAL. -- Estimating cost of large fridge (unlikely to work, but checking)-- A working plan will be drawn in consultation with the solenoid review panel who will meet by video in the week of May2-5.

We aim at having one solenoid in time to start step II in March 2011. Step III 3 months later. (working assumptions for the rest of the project)

8MICE FAC open session 23-04-2010 Alain Blondel

9MICE FAC open session 23-04-2010 Alain Blondel

EMR plane (Geneva) Diffuser mechanism (Oxford)

RF Amplifier (Daresbury)

RF cavities (Berkeley)

Coupling coil forged mandrel (Harbin China)

absorber windows (Mississippi)

LiqH2 absorber (KEK)

MICE is a fantastic world-wide team effort!

10MICE FAC open session 23-04-2010 Alain Blondel

This morning: Open Funding Agency Committee meeting

MICE Beam Line commissioning – Ken Long (25’)

MICE Detectors and first results – Maurizio Bonesini (25’)

Cooling Channel Preparations - Mike Zisman (25’)