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A New DC Muon Beam Source: MuSIC - Status and Prospects - Akira - - PowerPoint PPT Presentation

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A New DC Muon Beam Source: MuSIC - Status and Prospects - Akira SATO Department of Osaka University International Workshop on Neutrino Factories, Super Beams and Beta Beams: NuFact2012 July 23-28, 2012, Williamsburg, VA USA 20+5 min Akira

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SLIDE 1

μ

A New DC Muon Beam Source: MuSIC

  • Status and Prospects -

Akira SATO Department of Osaka University

International Workshop on Neutrino Factories, Super Beams and Beta Beams: NuFact2012 July 23-28, 2012, Williamsburg, VA USA 20+5 min

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SLIDE 2

Akira SATO MuSIC - Status and Prospects -、2012/07

Contents

Overview of the MuSIC

  • Concept
  • Status and schedule
  • Expected muon yield by simulation
  • Design

Results from beam tests

  • Muon collection efficiency
  • high current operation

Summary

2

写真:毎日新聞社
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SLIDE 3

Akira SATO MuSIC - Status and Prospects -、2012/07

Overview

3

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Akira SATO MuSIC - Status and Prospects -、2012/07

What is the MuSIC?

MuSIC The world’s most efficient DC muon beam source using the first pion capture solenoid system.

  • 400W proton beam from RCNP ring cyclotron

Design muon intensity：

  • 108-9μ/s ＠392MeV,1μA proton beam

One on the main projects of RCNP program in a new program of Research Center for Subatomic Science. Technical points of the MuSIC The first pion capture solenoid system

  • muon collection efficiency > 103 than conventional muon

beam lines A muon transport solenoid with dipole field

4

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Akira SATO MuSIC - Status and Prospects -、2012/07

Muon collection at the MuSIC

5

Conventional muon beam line

proton beam Capture magnets muons to the neutron facility

J-PARC MUSE proton beam

  • 1000kW

target graphite t20mm φ70mm

SuperOmega Ω:400mSr

MuSIC

proton beam Capture solenoid muons to a beam dump

Collect pions and muons by 3.5T solenoidal field

MuSIC proton beam

  • 0.4kW

target graphite t200mm φ40mm

Large solid angle & thick target

Transport solenoid

proton beam loss < 5%

MuSIC,COMET/Mu2e,PRISM, Neutrino factory, Muon collider

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Akira SATO MuSIC - Status and Prospects -、2012/07

Pion capture solenoid Pion and muon transport solenoid Muon storage ring Muon beam Proton beam Superconducting magnets R&D Particle physics Nuclear physics, material science, chemical ... Accelerator R&D

The Final Layout of MuSIC

6

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SLIDE 7

Akira SATO MuSIC - Status and Prospects -、2012/07

MUSIC@RCNP, Osaka Univ.

RCNP has two cyclotrons. A proton beam with 392MeV, 1μA is provided from the Ring Cyclotron (up to 5μA in near future). The MuSIC is in the largest experimental hall, the west experimental hall.

7

Ring Cyclotron AVF Cyclotron

Research Center of Nuclear Physics (RCNP), Osaka University, Japan

MuSIC

West Experimental Hall

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Akira SATO MuSIC - Status and Prospects -、2012/07

History of MuSIC Projects

2009JPY Construction of a proton beam line, pion capture system, and transport solenoid (up to 36 deg) 2010JPY Commissioning of super-conducting magnets of pion capture and transport 2010, Jul.：1st beamtest（Iproton=3nA）

  • proton beam hits the production target,
  • Every system worked successfully,
  • bserved secondary particles ay the end of the transport solenoid

2011, Feb.：2nd beam test（Iproton=~4nA）

  • muon beam was counted form their life spectrum,

2011JYP 2011, Jun.：3rd beam test（Iproton=~4nA）

  • muon life measurements with a higher statistics
  • muonic-Xray measurements
  • the design muon collection efficiency was confirmed by the measurement

2011, Oct.：4th beam test（Iproton=~4nA）

  • muonic-Xray measurements with a higher statistics
  • measurement of neutron flux and energy around the MuSIC

2012, Mar.：East side radiation shielding blocks were located. 2012JYP 2012, Jun 18-22：5th beam test

  • measurements for muon energy and spatial distribution
  • the system was operated with a high current proton beam （Iproton=~1microA）

8

Construction Commissioning Muon collection efficiency High current

  • peration
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Akira SATO MuSIC - Status and Prospects -、2012/07

Schedule

9

装置全体のレイアウト

陽子ビームライン部 パイオン捕獲部 パイオン崩壊 ミューオン輸送部 位相空間回転部

7

Pion and muon transport solenoid

Constructed in 2009 JPY and operated 2013-2014 JPY

Proton beam line Pion capture solenoid

2015 JPY

Matching and injection system

Muon storage ring

2015-2016 JPY

* The schedule depends on the budget situation.

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Akira SATO MuSIC - Status and Prospects -、2012/07

Muon beam from MuSIC by simulation

Changing magnitude and direction of the dipole field, we can select charge and momentum of the beam. 10

7

h20 Entries Mean RMS Underflow 0 Overflow 0 Integral p (MeV/c) 20 40 60 80 100 120 140 160 180 (particles/4MeV/c/100M-protons) 100 200 300 400 500 600 700 800 h20 Entries Mean RMS Underflow 0 Overflow 0 Integral

By=-0.08T

M uon +, P at mon itor1 1, By =-0.08 T h21 Entries Mean RMS Underflow 0 Overflow 0 Integral p (MeV/c) 20 40 60 80 100 120 140 160 180 (particles/4MeV/c/100M-protons) 100 200 300 400 500 600 700 800 h21 Entries Mean RMS Underflow 0 Overflow 0 Integral

By=-0.06T

M uon +, P at mon itor1 1, By =-0.06 T h22 Entries 1 Mean 6.453 RMS Underflow Overflow Integral 1 p (MeV/c) 20 40 60 80 100 120 140 160 180 (particles/4MeV/c/100M-protons) 100 200 300 400 500 600 700 800 h22 Entries 1 Mean 6.453 RMS Underflow Overflow Integral 1

By=-0.04T

M uon +, P at mon itor1 1, By =-0.04 T h23 Entries 12 Mean 12.81 RMS 4.279 Underflow Overflow Integral 12 p (MeV/c) 20 40 60 80 100 120 140 160 180 (particles/4MeV/c/100M-protons) 100 200 300 400 500 600 700 800 h23 Entries 12 Mean 12.81 RMS 4.279 Underflow Overflow Integral 12

By=-0.02T

M uon +, P at mon itor1 1, By =-0.02 T h24 Entries 346 Mean 21.1 RMS 7.944 Underflow Overflow Integral 346 p (MeV/c) 20 40 60 80 100 120 140 160 180 (particles/4MeV/c/100M-protons) 100 200 300 400 500 600 700 800 h24 Entries 346 Mean 21.1 RMS 7.944 Underflow Overflow Integral 346

By=0.00T

Muo n+, P at monitor1 1, By =0.00 T h25 Entries 2 119 Mean 28.73 RMS 10.6 Underflow Overflow Integral 2 119 p (MeV/c) 20 40 60 80 100 120 140 160 180 (particles/4MeV/c/100M-protons) 100 200 300 400 500 600 700 800 h25 Entries 2 119 Mean 28.73 RMS 10.6 Underflow Overflow Integral 2 119

By=0.02T

Muo n+, P at monitor1 1, By =0.02 T h26 Entries 4650 Mean 39.65 RMS 13.57 Underflow 5 Overflow Integral 4645 p (MeV/c) 20 40 60 80 100 120 140 160 180 (particles/4MeV/c/100M-protons) 100 200 300 400 500 600 700 800 h26 Entries 4650 Mean 39.65 RMS 13.57 Underflow 5 Overflow Integral 4645

By=0.04T

Muo n+, P at monitor1 1, By =0.04 T h27 Entries 6533 Mean 52.97 RMS 14.96 Underflow 16 Overflow Integral 6517 p (MeV/c) 20 40 60 80 100 120 140 160 180 (particles/4MeV/c/100M-protons) 100 200 300 400 500 600 700 800 h27 Entries 6533 Mean 52.97 RMS 14.96 Underflow 16 Overflow Integral 6517

By=0.06T

Muo n+, P at monitor1 1, By =0.06 T h28 Entries 7 112 Mean 65.34 RMS 15.81 Underflow 52 Overflow Integral 7060 p (MeV/c) 20 40 60 80 100 120 140 160 180 (particles/4MeV/c/100M-protons) 100 200 300 400 500 600 700 800 h28 Entries 7 112 Mean 65.34 RMS 15.81 Underflow 52 Overflow Integral 7060

By=0.08T

Muo n+, P at monitor1 1, By =0.08 T

By=+0.02T By=+0.04T By=+0.06T By=+0.08T By=-0.02T By=-0.04T By=-0.06T By=-0.08T By=0

red：positive muon blue：negative muon

by g4beamline, QGSP_BERT, Ep=392MeV

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Akira SATO MuSIC - Status and Prospects -、2012/07

Muon beam from MuSIC by simulation

11

By (T) N(µ+) for Ip=1µA N(µ-) for Ip=1µA N(µ+) /N(µ-)

  • 0.08

1E+08

  • 0.06

9E+07

  • 0.04

6E+04 5E+07 1E-03

  • 0.02

7E+05 2E+07 3E-02 2E+07 4E+06 5E+00 0.02 1E+08

  • 0.04

3E+08

  • 0.06

4E+08

  • 0.08

4E+08

  • by g4beamline, QGSP_BERT, Ep=392MeV

The proton beam current will be upgraded to 5μA in near future.

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Akira SATO MuSIC - Status and Prospects -、2012/07

Examples of Muon Science at MuSIC

Particle Physics : search for μ→eee (muon LFV) 108-9μ+/sec

  • DC continuous beam is critical

Nuclear Physics : nuclear muon capture (NMC) 105-6μ-/sec pion capture and scattering Chemistry : chemistry on pion/muon atoms 105-6μ-/sec Materials Science : μSR (a μSR apparatus is needed) 105-6μ+/sec, polarized Accelerator / Instruments R&D (for PRISM/neutrino factory/muon collider) :

  • Superconducting solenoid magnets
  • FFAG, RF
  • cooling methods
  • muon acceleration, deceleration, and phase rotation

12

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Akira SATO MuSIC - Status and Prospects -、2012/07

Details

13

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Akira SATO MuSIC - Status and Prospects -、2012/07

MuSIC: Present Layout

14

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Akira SATO MuSIC - Status and Prospects -、2012/07

MuSIC＠RCNP-West Hall（~2012 Feb）

15

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Akira SATO MuSIC - Status and Prospects -、2012/07

Superconducting Magnets

16

Conductor

Cu-stabilized NbTi

Cable diameter Φ1.2 mm Cu/NiTi ratio 4 RRR (R293K/R10K at 0T) 230-300 Operation current 145 A Max field on axis 2.0 T Bore Φ480 mm Length 200 mm x 8 coils Inductance 124 H Stored energy 1.4 MJ Quench back heater (Cu wire) 1.3 mm dia. ~0.05Ω/coil@4K Operation current 145 A Max field on axis 3.5 T Bore Φ900 mm Length 1000 mm Inductance 400 H Stored energy 5 MJ Quench back heater (Cu wire) 1.2 mm dia. ~1Ω@4 K Operation current 115 A Max field on axis 0.04 T Bore Φ460 mm Length 200 mm/coil Inductance 0.04 H/coil Stored energy 280 J/coil

Capture solenoid Transport solenoid

Superconducting Coils

Solenoid coil of the capture solenoid Solenoid coil of the transport solenoid Dipole coil of the transport solenoid

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SLIDE 17

Proton Beam Monitoring on the Target

31

CCD CCD

Downstream Upstream 20cm 4cm

Graphite Target

phosphor phosphor Target at the center of the capture solenoid.

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Akira SATO MuSIC - Status and Prospects -、2012/07

Downstream Upstream 6 c m 4cm

Proton Beam on the target

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Akira SATO MuSIC - Status and Prospects -、2012/07

Beam Tests

19

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Akira SATO MuSIC - Status and Prospects -、2012/07

History of MuSIC Projects

2009JPY Construction of a proton beam line, pion capture system, and transport solenoid (up to 36 deg) 2010JPY Commissioning of super-conducting magnets of pion capture and transport 2010, Jul.：1st beamtest（Iproton=3nA）

  • proton beam hits the production target,
  • Every system worked successfully,
  • bserved secondary particles ay the end of the transport solenoid

2011, Feb.：2nd beam test（Iproton=~4nA）

  • muon beam was counted form their life spectrum,

2011JYP 2011, Jun.：3rd beam test（Iproton=~4nA）

  • muon life measurements with a higher statistics
  • muonic-Xray measurements
  • the design muon collection efficiency was confirmed by the measurement

2011, Oct.：4th beam test（Iproton=~4nA）

  • muonic-Xray measurements with a higher statistics
  • measurement of neutron flux and energy around the MuSIC

2012, Mar.：East side radiation shielding blocks were located. 2012JYP 2012, Jun 18-22：5th beam test

  • measurements for muon energy and spatial distribution
  • the system was operated with a high current proton beam （Iproton=~1microA）

20

Construction Commissioning Muon collection efficiency High current

  • peration
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SLIDE 21

Akira SATO MuSIC - Status and Prospects -、2012/07

Setup: muon life and muonic-X-ray

21

50µm Kapton window Plastic scintillator Stopping target Cu t5mm

  • r Mg t20mm

Muon beam Ge detector S1 S2

S1 ⊕ S2 S1 S2 Ge

gate gene multi

  • hit

TDC ADC

start stop stop gate in

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Akira SATO MuSIC - Status and Prospects -、2012/07

実験結果：エネルギースペクトル

11

hist1

Entries 8193 Mean 174.9 RMS 138.7

E n e r g y [ k e V ] 1 2 3 4 5 6 7 1 2 3 4 5 6 7

hist1

Entries 8193 Mean 174.9 RMS 138.7

e n e r g y s p e c t r u m

陽子ビーム電流値：435pA、測定時間：10331秒 全エネルギー ピーク事象数 e+e-対消滅による γ線(511keV) Mg-μKα (296.4keV) Mg-μLα (56.6keV) Mg-πLα(74.7keV) C -μKα(75.5keV) エネルギー [keV]

Results from muonic X-ray

22

陽子ビーム電流値とμ-数の関係

14

実験結果(6月) シミュレーション 実験結果 ～172μ-/1pA/sec

1μAの場合の全負ミューオン数（輸送ソレノイド36°出口）

実験結果 シミュレーション 負ミューオン数[1/sec] (1.7±0.3)×108 1.4×108 ビーム中のμ-数 [/sec] 陽子ビーム電流値 [pA] シミュレーション結果と一致 （またはそれ以上）

Kα (296.4keV) Lα (56.6keV) Kα (6月測定) 最小二乗法 (6月測定) シミュレーション

パイルアップ補正

Energy e+e- annihilation γ-rays (511keV) Full energy peak

Number of negative muons at the 36 deg exit for 1μA proton beam beam test simulation

  • Num. of muons

Proton beam I

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Akira SATO MuSIC - Status and Prospects -、2012/07

h4 Entries 799548 Mean 5963 RMS 4830 / ndf

2

9938 / 1173 p0 185.6

  • 1184

p1 16.8

  • 173.3

p2 8.9

  • 1055

p3 19.5

  • 2151

p4 1.0

  • 255.5

2000 4000 6000 8000 10000 12000 14000 16000 200 400 600 800 1000 1200 1400 1600 h4 Entries 799548 Mean 5963 RMS 4830 / ndf

2

9938 / 1173 p0 185.6

  • 1184

p1 16.8

  • 173.3

p2 8.9

  • 1055

p3 19.5

  • 2151

p4 1.0

  • 255.5

h4

Time(ns)

Muon Life

Stopping target : Cu

23 The slope consists of three exp. components: τ1 = 2.197 µs : µ+ τ2 = 2.026 µs : µ- in C (Plastic) τ3 = 0.164 µs : µ- in Cu

N = A0 + A1e−t/τ1 + A2e−t/τ2

2x108[μ+ /sec/μA] was observed with 6pA proton beam.

muons Cu

Preliminary

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Akira SATO MuSIC - Status and Prospects -、2012/07

Operation with 400W proton beam

24

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SLIDE 25

Akira SATO MuSIC - Status and Prospects -、2012/07

History of MuSIC Projects

2009JPY Construction of a proton beam line, pion capture system, and transport solenoid (up to 36 deg) 2010JPY Commissioning of super-conducting magnets of pion capture and transport 2010, Jul.：1st beamtest（Iproton=3nA）

  • proton beam hits the production target,
  • Every system worked successfully,
  • bserved secondary particles ay the end of the transport solenoid

2011, Feb.：2nd beam test（Iproton=~4nA）

  • muon beam was counted form their life spectrum,

2011JYP 2011, Jun.：3rd beam test（Iproton=~4nA）

  • muon life measurements with a higher statistics
  • muonic-Xray measurements
  • the design muon collection efficiency was confirmed by the measurement

2011, Oct.：4th beam test（Iproton=~4nA）

  • muonic-Xray measurements with a higher statistics
  • measurement of neutron flux and energy around the MuSIC

2012, Mar.：East side radiation shielding blocks were located. 2012JYP 2012, Jun 18-22：5th beam test

  • measurements for muon energy and spatial distribution
  • the system was operated with a high current proton beam （Iproton=~1microA）

25

Construction Commissioning Muon collection efficiency High current

  • peration
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SLIDE 26
  • 2

9 9 7 9 2 2 年0 3 月1 9 日

コイル外径: CX4 コイル外径: CX5 コイル外径: CX6

OUTER2 OUTER3 OUTER1 INNER1 INNER2 INNER3 INNER4 INNER5 INNER6 4.34K 4.31K 4.28K 4.23K 4.22K 4.22K 4.14K 4.02K

17min

CRYOGENIC TEMPERATURE SENSORS - Cernox

392MeV-1µA

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SLIDE 27
  • 2
9 9 7 9 2 2 年0 3 月1 9 日

CX8 Position

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SLIDE 28

Terminal Temperature

T = T0 + (Tf − T0)(1 − e−t/τ)

4 4.1 4.2 4.3 4.4

Tf ~ 4.4K

The coil temperature up to ~6.5K is acceptable. MuSIC can work with 400W proton beam.

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Akira SATO MuSIC - Status and Prospects -、2012/07

Summary

A new intense DC muon beam line is under construction at RCNP, Osaka University. This is the first muon facility which adopts a superconducting pion capture system. It would provide >108muons/sec with a 400W proton beam. The pion capture solenoid and a 36 deg. of transport solenoid have been build. Five beam tests with a low current proton beam have been

  • performed. The results from muon life and muonic X-ray

measurements conclude more than 108 muons/sec with 392MeV, 1μA proton is achievable at the MuSIC. Finally, the system successfully have been operated with 392meV-1μA proton beam in June, 2012. The MuSIC also can be considered as one of the very important R&D programs for not only the COMET project, and also PRISM/ PRIME and Neutrino factories and Muon collider.

29

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Akira SATO MuSIC - Status and Prospects -、2012/07

A Future Plan of RCNP: 1MW proton cyclotron

30

輸送ソレノイドの双極磁場Byの方向や大きさを変えることで、運動量や電荷を選択できる。

h25 Entries 2 119 Mean 28.73 RMS 10.6 Underflow Overflow Integral 2 119

p (MeV/c)

20 40 60 80 100 120 140 160 180

(particles/4MeV/c/100M-protons)

100 200 300 400 500 600 700 800

h25 Entries 2 119 Mean 28.73 RMS 10.6 Underflow Overflow Integral 2 119

By=0.02T

Muo n+, P at monitor1 1, By =0.02 T

By=+0.02T

赤：正電荷ミューオン 青：負電荷ミューオン

輸送ソレノイドの双極磁場Byの方向や大きさを変えることで、運動量や電荷を選択できる。

h20 Entries Mean RMS Underflow 0 Overflow 0 Integral

p (MeV/c)

20 40 60 80 100 120 140 160 180

(particles/4MeV/c/100M-protons)

100 200 300 400 500 600 700 800

h20 Entries Mean RMS Underflow 0 Overflow 0 Integral

By=-0.08T

M uon +, P at mon itor1 1, By =-0.08 T

By=-0.08T

赤：正電荷ミューオン 青：負電荷ミューオン

negative muons positive muons The present MuSIC A future plan proton beam energy 400 MeV 400 MeV Proton cyclotron proton beam current 1 µA 2.5 mA proton beam power 400 W 1 MW MuSIC system production target Graphite, L=20cm Tungsten, 16cm MuSIC system Solenoid field 3.5 Tesla 5.0 Tesla Muon beam µ+ yield 1x108 /sec 7x1011 /sec Muon beam µ- yield 1x108 /sec 7x1011 /sec

x 2 x 2.5 x 103 x 1.4

2023~???

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Akira SATO MuSIC - Status and Prospects -、2012/07

Backup Slides

31

slide-32
SLIDE 32

パイオン捕獲システム

GM # # W

slide-33
SLIDE 33
  • 2
9 9 7 9 2 2 年0 3 月1 9 日
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SLIDE 34
  • 2

9 9 7 9 2 2 年0 3 月1 9 日

Outer: CX4 Outer: CX5 Outer: CX6

OUTER2 OUTER3 OUTER1 INNER1 INNER2 INNER3 INNER4 INNER5 INNER6

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SLIDE 35

Time (min)

2 4 6 8 10 12 14 16

Temp (K)

4 4.05 4.1 4.15 4.2 4.25 4.3 4.35

/ ndf

2
  • 4.857 / 10

T 0.006952

  • 3.934
f

T 0.01791

  • 4.442
  • 0.7453
  • 10.08

/ ndf

2
  • 4.857 / 10

T 0.006952

  • 3.934
f

T 0.01791

  • 4.442
  • 0.7453
  • 10.08

Capture Solenoid

T = T0 + (Tf − T0)(1 − e−t/τ)

slide-36
SLIDE 36

パイオン捕獲システム：仕様

solenoid

Conductor Cu-stabilized NbTi Cable diameter 1.2mm Cu/NbTi ratio 4 RRR (R293K/R10K at 0T) 230-300 Operation current 145A Max field on axis 3.5T Bore 900mm Length 1000mm Inductance 400H Stored energy 5MJ Quench back heater Cu wire 1.2mm dia. ~1@4K

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SLIDE 37

ミューオン輸送ソレノイド

13

Transport solenoids (BT5+BT3)

Operation current 145A Field on axis 2T Bore 480mm Length 200mm x8Coils Inductance 124H Stored energy 1.4MJ Quench back heater Cu wire 1.3mm dia. ~0.05/Coil@4K Coil layout Saddle shape dipole 6 layers 528 turns (1 set) Current 115A (Bipolar) Field 0.04T Aperture 460mm Length 200mm Inductance 0.04H/Coil Stored Energy 280J/Coil

Correction dipole coils Solenoid coils

Correction dipole coil Solenoid coil

世界初の実用： cosθ巻き超伝導双曲電磁石

slide-38
SLIDE 38

パイオン捕獲システム：放射線環境

  • !!

27cm

!!

0.6W

"! 0.4W in coil (~1ton) "! 0.2W in coil support

!!

~10kGy/ year

!!

100W

!!

50W

!!

  • "! 5x1018 neutrons/m2/year

"!

  • !! 1020-1022 n/m2

"!

  • 10kGy/year

27cm

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SLIDE 39

14

Refrigeration

  • Conduction cooling by GM

cryocoolers

  • Can be cooled down within 1 week

with pre-cooling by LN2

  • Pion capture solenoid
  • 4K: 1W+nucl. heating 0.6W
  • 300K40K: 50W
  • GM 1st stage
  • 3 x GM cryocoler
  • 1.5Wx2+1Wx1 @4K
  • 45Wx2+44W @40K
  • Transport solenoid
  • 4K: 0.8W
  • 300K40K : 50W
  • GM 1st stage
  • 2 x Cryocoolers on each cryostat

(BT5,BT3)

  • 1Wx2 @4K
  • 44Wx2 @40K
  • Achievable temperature
  • Pion capture solenoid : 3.7K
  • Transport solenoids : 4.2K-

4.5K(BT3), 4.5K-5.8K(BT5)

Cool down characteristics

Pion capture coil GM 2nd stage Coil R GM 1st stage 40K shield

slide-40
SLIDE 40

8

Expected muon yields

  • surface muons

1.2x10-4 /p

8x108 /sec

By=0.04T

Assuming

400MeVx1A proton beam

Quite high

intensity / can be achieved

8x108 /sec 2x108 /sec

3.1x10-5 /p

2x108 /sec

By=0.04T

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SLIDE 41

Comparison on the pion capture systems

MuSIC COMET NuFact(1) Muon Intensity 108/sec 1011/sec 1012-13/sec Muon Momentum 20-70 MeV/c (Backward) 20-70 MeV/c (Backward) 170-500 MeV/c (Forward) Time structure Continuous Pulsed Pulsed Proton Beam Power 400W (0.4GeV) 56kW (8GeV) 4MW (8GeV) Production Target Graphite Tungsten Mercury jet Capture Solenoid

  • Max. Field Strength

3.5 T 5.0 T 20 T Inner radius of Main SC Coil 0.45 m 0.65 m 0.64 m Outer radius of Main SC Coil 1.0 m 1.6 m 1.78 m

(1) Based on The Muon Collider/Neutrino Factory Target System, H.Kirk and K.McDonald (Aug.14,2010) and Study-II report

slide-42
SLIDE 42

Pion Capture System in MuSIC,COMET, and NuFact

MuSIC COMET(Mu2E) Neutrino Factory

1.3 m

20T 1.7T 5T 3T 3.5T 2.0T

1 m

The Muon Collider/Neutrino Factory Target System, H.Kirk and K.McDonald (Aug.14,2010)

MuSIC aims to provide the world intense DC muon beam with the 400W proton beam.