printed by www.postersession.com • MICE is a Muon Ionization Cooling Experiment running at the Rutherford-Appleton Laboratory, Chilton UK. • Cooled muon beams will be a major technological step towards the development of a "neutrino factory" and "muon collider". • A minimum ionizing muon beam will be transversely cooled by stages of -dE/dx in LH absorbers and longitudinal energy restoration in 201MHz RF cavities. •The 6D emittance reduction is measured before and after the cooling stage by tracking individual muons through the system. •Muon purity is assured by threeTime-of-Flight (TOF) measurements, two threshold Cherenkovs ( , and a low energy muon/electron ranger KL/EMR ( e. TOF Beam Measurements Electronics Introduction • TOFsystems tested at the Frascati test beam facility TOFsystems tested at the Frascati test beam facility in ''07 and in place at MICE in '08. in ''07 and in place at MICE in '08. to=55ps confirmed w good confirmed w good separation in separation in preliminary commissioning stage. preliminary commissioning stage. Aerogel P th - mu P th-pi n = 1.12 220 MeV/c 280 MeV/c n =1.07 280 MeV/c 360 MeV/c Cherenkov Particle I.d. Summary • PID detectors being commissioned in MICE PID detectors being commissioned in MICE beamline. Initial results very promisng. beamline. Initial results very promisng. • Full systems operational in '09 and '10. Full systems operational in '09 and '10. Time of Flight System 2 • TOF1,2,3 - Three time of flight stations (~40cmx40cm)are positioned in the MICE channel at the start (TOF0), mid(TOF1), and rear(TOFII) positions. • Each station consists of a 10X and 10Y array constructed of BC4404/420 scintillator bar assemblies with dual R4998 PMT (30ps) readout w modified high rate HV divider. Each assembly gives typically to=55ps timing resolution. •The expected TOF resolution between 2 stations is then TOF 2 ~ 2(to/ 2 √ ) 2 + 2 L + 2 cable + 2 elec 70ps ≤ 2 2 MICE Particle i.d. Instrumentation D. Sanders, L. Cremaldi, D. Summers, for the MICE Collaboration Departments of Physics and Astronomy University of Mississippi • CKOVab- CKOVab- Two threshold Cherenkov detectors Two threshold Cherenkov detectors positively identify muons from pions in the upstream positively identify muons from pions in the upstream MICE beamline. MICE beamline. • High density aerogels of n=1.12 and n=1.07 were High density aerogels of n=1.12 and n=1.07 were chosen with momentum thresholds for muon I.d. chosen with momentum thresholds for muon I.d. between 220-360 MeV/c. between 220-360 MeV/c. Cherenkov Radiation in HD Aerogel A 0 CkOV Electron Response 5-6 pe per pmt X 4~24 pe 5-6 pe per pmt X 4~24 pe Projected CKOV Muon Efficiency vs Momentum Pion MisID 0 200 400 600 800 1000 200 250 300 350 400 450 P (MeV/c) Series1 Series2 TOF1-TOF0 TOF1-TOF0 420 MeV/ 420 MeV/c + KL/EMR • KL/EMR KL/EMR - electron preshower+rear muon ranger. - electron preshower+rear muon ranger. ( KLOE - KLOE - Nucl.Instrum.Meth.A598:239-243,2009) •KL- preshower constructed of 0.3mmPb+BF12 fiber preshower constructed of 0.3mmPb+BF12 fiber ( 2.5 Xo, ( 2.5 Xo, E=7%/ E, √ E=7%/ E, √ t~70ps / E ) √ t~70ps / E ) √ •EMR- 70cm active scintillator w WLS+MAPMT 70cm active scintillator w WLS+MAPMT readout ( 58bars x4s0layers = 680mm, 2360 ch ) readout ( 58bars x4s0layers = 680mm, 2360 ch ) KL KL TOF1 TOF1 TOF0 TOF0 CKOV CKOV CKOV CKOV aerogel aerogel simulatioonl simulatioonl KL response KL response 300 MeV/c 300 MeV/c run run BC420 BC420 BC404 BC404

MICE is a Muon Ionization Cooling Experiment running at

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MICE Particle i.d. Instrumentation D. Sanders, L. Cremaldi, D. Summers, for the MICE Collaboration Departments of Physics and Astronomy University of Mississippi. TOF1-TOF0 420 MeV/ c p +. Cherenkov Radiation in HD Aerogel. p. . simulatioonl. KL response 300 MeV/c  run. TOF0. - PowerPoint PPT Presentation

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Page 1: MICE is a Muon Ionization Cooling Experiment running at

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www.postersession.com

• MICE is a Muon Ionization Cooling Experiment running at the Rutherford-Appleton Laboratory, Chilton UK.

• Cooled muon beams will be a major technological step towards the development of a "neutrino factory" and "muon collider".

• A minimum ionizing muon beam will be transversely cooled by stages of -dE/dx in LH absorbers and longitudinal energy restoration in 201MHz RF cavities.

•The 6D emittance reduction is measured before and after the cooling stage by tracking individual muons through the system.

•Muon purity is assured by threeTime-of-Flight (TOF) measurements, two threshold Cherenkovs (, and a low energy muon/electron ranger KL/EMR (e.

TOF Beam Measurements

Electronics

Introduction

• TOFsystems tested at the Frascati test beam facility TOFsystems tested at the Frascati test beam facility in ''07 and in place at MICE in '08. in ''07 and in place at MICE in '08.

to=55ps confirmed w good confirmed w good separation in separation in preliminary commissioning stage.preliminary commissioning stage.

Aerogel Pth-mu Pth-pi

n = 1.12 220 MeV/c 280 MeV/c

n =1.07 280 MeV/c 360 MeV/c

Cherenkov Particle I.d.

Summary

• PID detectors being commissioned in MICE PID detectors being commissioned in MICE beamline. Initial results very promisng. beamline. Initial results very promisng.

•Full systems operational in '09 and '10. Full systems operational in '09 and '10.

Time of Flight System

• TOF1,2,3 - Three time of flight stations (~40cmx40cm)are positioned in the MICE channel at the start (TOF0), mid(TOF1), and rear(TOFII) positions.

• Each station consists of a 10X and 10Y array constructed of BC4404/420 scintillator bar assemblies with dual R4998 PMT (30ps) readout w modified high rate HV divider. Each assembly gives typically to=55ps timing resolution.

•The expected TOF resolution between 2 stations is then TOF2 ~ 2(to/√2)2 + 2

L + 2cable + 2

elec ≤ 70ps2

MICE Particle i.d. Instrumentation D. Sanders, L. Cremaldi, D. Summers, for the MICE Collaboration

Departments of Physics and AstronomyUniversity of Mississippi

• CKOVab-CKOVab- Two threshold Cherenkov detectors Two threshold Cherenkov detectors positively identify muons from pions in the upstream positively identify muons from pions in the upstream MICE beamline. MICE beamline.

•High density aerogels of n=1.12 and n=1.07 were High density aerogels of n=1.12 and n=1.07 were chosen with momentum thresholds for muon I.d. chosen with momentum thresholds for muon I.d. between 220-360 MeV/c. between 220-360 MeV/c.

Cherenkov Radiation in HD Aerogel

A 0

CkOV Electron Response

5-6 pe per pmt X 4~24 pe5-6 pe per pmt X 4~24 pe

Projected CKOV Muon Efficiency vs MomentumPion MisID

200

400

600

800

1000

200 250 300 350 400 450

P (MeV/c)

Eff

x 1

Series1

Series2

TOF1-TOF0TOF1-TOF0420 MeV/420 MeV/cc +

KL/EMR

• KL/EMRKL/EMR - electron preshower+rear muon ranger. - electron preshower+rear muon ranger. ((KLOE - KLOE - Nucl.Instrum.Meth.A598:239-243,2009)

•KL- preshower constructed of 0.3mmPb+BF12 fiber preshower constructed of 0.3mmPb+BF12 fiber ( 2.5 Xo, ( 2.5 Xo, E=7%/ √E, E=7%/ √E, t~70ps / √E ) t~70ps / √E )

•EMR- 70cm active scintillator w WLS+MAPMT 70cm active scintillator w WLS+MAPMT readout ( 58bars x4s0layers = 680mm, 2360 ch )readout ( 58bars x4s0layers = 680mm, 2360 ch )

KLKL

TOF1TOF1

TOF0TOF0

CKOVCKOV

aerogelaerogel

simulatioonlsimulatioonl

KL responseKL response300 MeV/c 300 MeV/c run run

BC420 BC420

BC404BC404

Status of MICE Tracker System H. Sakamoto, Osaka University (on behalf of the MICE Collaboration) International Muon Ionization Cooling Experiment (MICE)

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