1June 1st 2009 MICE CM24 - RAL 1

MICE Beamlinem. apollonio

2June 1st 2009 MICE CM24 - RAL 2

- Beamline parallel session: - understand the readiness of the beamline- state of magnets with emphasis on DK solenoid - state of new target- diffuser- optics - knowledge of the beamline

- emittance- rate (Lumi monitors?)- FermiLab monitors (location)? - state of other detectors: TOFs/GVAs?

- discussion

D1

D2 Q4

Q1

Q2

Q3

Q5 Q6 Q7 Q8 Q93June 1st 2009 MICE CM24 - RAL 3

Magnet ReadinessMAGNET Readiness 1/6/09 Power

ConnectionRemote control

Plumbing Cryogenics Other Readiness 9/09

Q1

Q2

Q3

B1 17AUG-2SEP SHUTDOWN, reposition and test

B1 moved to allow for iron shielding removal. Needs to be reconnected/testd VERY TIGHT SCHEDULE!!!!!!!!

DK Sol Tested at ½ max current (5T) for short period. Need a long test at MAX current w. quench protection systemwhen is it due?

A complete test of the device is needed before commissioning. Should be OK by Sept 09, unless problem arise with long run test

B2

Q4 Plumbing

Q5 To be

Q6 Finished

Q7 By

Q8 ??/??/09

Q9

4June 1st 2009 MICE CM24 - RAL 4

table to be updated during thesession …

5

BeamLines Availability

April, 22 2009 UKNF09 - Lancaster

P0 (MeV/c)195 WITH WITHOUT OVER

SOLENOID SOLENOID CURRENTMUON Ploc (MeV/c)

Q1 191.92 48.41 41.14

PTOF0 (MeV/c) Q2 191.66 60.43 75.19

182.31 Q3 191.41 42.01 45.99

D1 191.15 144.01 143.88

Sol 190.88 NA NA I > I_MAX

D2 188.54 75.34 72.20

Q4 186.80 124.98 124.98

Q5 186.15 167.02 167.02

Q6 185.49 110.56 110.56

Q7 159.89 104.64 104.64

Q8 159.52 158.19 158.19

Q9 158.89 134.86 134.86

OPTICS

CURRENT (A)

INSTRUCTIONS:a) insert initial momentum P0 b) adjust the value to match the P at D1 (red box)c) read the currents out of the relevant final column (SOLENOID / NO SOLENOID)

(b)

(c)

(a)

0

50

100

150

200

250

0 5000 10000 15000 20000 25000 30000

Reference Beam Line – muon (e,P=207 MeV/c)

Beamlines for initial/calibration studies:from (a) with local momentum rescaling of the magnets[ with / without solenoid ] (infact we used the one with no DKsol for the aformentioned reasons)electron (@150 MeV/c) used for TOF calibrationpions (@ 300 MeV/c) 1st muons seen protons (@480 MeV/c) 1st estimate of primary intensity

5June 1st 2009 MICE CM24 - RAL 5

NB: need to introduce calib. current/field for DKsol

Muon BeamLine: G4BL simulation – Q1.DS + ------------ CALC_EMI ------------- + T= 0.196 mm rad x = 4.77 cm Y = 4.55 cm T = 38397 mm T = -7.105 RADIUS = 86.73 mm x= 0.2448 mm rad x = 32146 mm x= 9.68 x= 0.074 mm rad y= 0.1568 mm rad y = 45755 mm y= -32.9 y= 0.047 mm rad

P=444.71 MeV/c Z=Q1DS

X’ vs X Y’ vs Y

Y vs X

mmmm

rad

rad

6June 1st 2009 MICE CM24 - RAL 6

Muon BeamLine: G4BL simulation – TOF0

Y vs X P/P<10%

P/P|>10%

+ ------------ CALC_EMI ------------- + N= 2.91 mm rad X = 4.51 cm Y = 7.02 cm = 2874.8618 mm = 0.129 RADIUS = 91.4828342 mm x= 3.49 mm rad x= 1400.4 mm x= 0.489 eX=1.47 mm rad y= 2.43 mm rad y= 4867.7 mm y= -0.392 eY=1.02 mm rad

X’ vs X

Y’ vs Y

P=250 MeV/c Z=TOF0

7June 1st 2009 MICE CM24 - RAL 7

Muon BeamLine: G4BL simulation – TOF1

+ ------------ CALC_EMI ------------- + N= 2.47 (mm rad) X = 5.9 (cm) Y = 4.37 (cm) T = 2334 (mm) T = 0.86 RADIUS = 75.9 (mm) x= 2.60 x= 2872 mm x= 1.598 y= 2.35 y= 1727 mm y= 0.039

P=223 MeV/c Z=TOF1

8June 1st 2009 MICE CM24 - RAL 8

Muon BeamLine: G4BL simulation – Diffuser

+ ------------ CALC_EMI ------------- + = 3.41 mm rad X = 4.35 cm Y = 4.88 cm T = 1250 mm T = -0.0017 RADIUS = 65.3 mm x= 3.76 mm rad x= 1004 mm x= 0.367 y= 3.10 mm rad y= 1534 mm y= -0.450

P=214 MeV/c Z=Diffuser

9June 1st 2009 MICE CM24 - RAL 9

FermiLab Monitors: confirm locations andreadiness?

10June 1st 2009 MICE CM24 - RAL 10

Could be useful to determine beam alignment (together with TOF0/1)

11June 1st 2009 MICE CM24 - RAL 11

Optics: are we ready? (shutdown 17 Aug/1 Sept) 2Sept – 25 Oct

(see later talk for details)

- On Sept 2nd we don’t need a beam matched to … something - We can use optics for =6 mm rad / P=214 MeV/c [STEPII.1] - Rescale it to other momenta to cover STEPI + STEPII.0

- later (towards end of year) we need a properly matched beam for all the config. of STEPII.1 [trk-solenoid + diffuser] matrix completion

- more work needed to tune DS-BL (Q4-9) to match MICE optics

- we may want to test solenoid at B+/-B to increase rate

3 6 10

140

200

240

Q4Q1

Dip

ole1

DK solenoidQ2 Q3

Dip

ole2

Q5 Q6 Q7 Q8 Q9

1) beamline momentum tuning

P=444 MeV/c

fix D1 fix D2

2) beamline quadrupole tuning

12June 1st 2009 MICE CM24 - RAL 12

13June 1st 2009 MICE CM24 - RAL 13

Summary

- Assume target is working - Assess magnet readiness

- DKsol strongly wanted - 5T to cover up to high P(MAX=240 MeV/c)- if NO DKsol back to situation of ’08

- Optics for STEPI/STEPII.0 should be fine as it is- Ongoing work to complete STEPII.1 matrix- Need to assess detector readiness

- assume TOF0,1 + GVAs + FLMons are in place and alive