M. Allitt, MEB December 2003 1

MCS specificationMCS specification

An MCS is An MCS is acceptedaccepted if: if: |dX| 0.1 mm AND |dY| 0.1 mm AND |dT| 3 mrad.

An MCS is An MCS is rejectedrejected if: if: |dX| > 0.3 mm OR |dY| > 0.3 mm OR |dT| > 3 mrad.

An MCS with either |An MCS with either |dX|dX|oror ||dY|dY| greater than 0.1 mm greater than 0.1 mm is still is still acceptedaccepted if: if:

|dX| 0.3 mm, |dY| 0.3 mm and |dT| 3 mrad AND The mean and standard deviation of |dX| and |dY| calculated

using a sample set numbering at least 50 magnets are both 0.1 mm;

M. Allitt, MEB December 2003 2

MCDO specification (1)MCDO specification (1)

An MCD module is An MCD module is acceptedaccepted if: if: |dX| 0.1 mm AND |dY| 0.1 mm AND |dT| 4 mrad.

An MCD module is An MCD module is rejectedrejected if: if: |dX| > 0.3 mm OR |dY| > 0.3 mm OR |dT| > 4 mrad.

Should either |Should either |dX| dX| oror ||dY|dY| be greater than 0.1 mm, be greater than 0.1 mm, any MCD module will still be any MCD module will still be acceptableacceptable provided provided that:that:

|dX| 0.3 mm, |dY| 0.3 mm and |dT| 4 mrad; The mean and standard deviation of |dX| and |dY| calculated

using a sample set numbering at least 50 MCD are both 0.1 mm;

M. Allitt, MEB December 2003 3

MCDO specification (2)MCDO specification (2)

An MCO module is An MCO module is acceptedaccepted if: if: |dX| 0.3 mm AND |dY| 0.3 mm AND |dT| 4 mrad.

An MCO module is An MCO module is rejectedrejected if: if: |dX| > 0.3 mm OR |dY| > 0.3 mm OR |dT| > 4 mrad.

M. Allitt, MEB December 2003 4

ConclusionsConclusions

MCSMCS More than half of the total MCS needed have been produced. Average dX, dY close to zero, standard deviation ~ 0.05 mm Average dT ~ 0.2 mrad, standard deviation ~ 1 mrad Distribution of European MCS slightly narrower than

distribution of Indian MCS, but will probably end up the same

MCDOMCDO Insufficient data for European MCDO Unknown and not constant co-ordinate system for Indian

measurements mean we can’t check the distribution of all magnets.

For Indian MCDO checked at CERN, average dX, dY close to zero, standard deviation ~ 0.05 mm

Average dT ~ - 0.2 to -0.3 mrad, standard deviation ~ 1 mrad

MCS Europe

-1.25E+02-1.00E+02-7.50E+01-5.00E+01-2.50E+010.00E+002.50E+015.00E+017.50E+011.00E+021.25E+02

Harmonic

Un

its

averagesupper spec limitlower spec limitavg + 3 sigmaavg - 3 sigma

MCS Europe

-1.25E+02-1.00E+02-7.50E+01-5.00E+01-2.50E+010.00E+002.50E+015.00E+017.50E+011.00E+021.25E+02

Harmonic

Un

its

averages

upper spec limit

lower spec limit

avg + 3 sigma

avg - 3 sigma

MCS India

-1.25E+02-1.00E+02-7.50E+01-5.00E+01-2.50E+010.00E+002.50E+015.00E+017.50E+011.00E+021.25E+02

Harmonic

Un

its

averages

upper spec limit

lower spec limit

avg + 3 sigma

avg - 3 sigma

MCS India

-1.25E+02-1.00E+02-7.50E+01-5.00E+01-2.50E+010.00E+002.50E+015.00E+017.50E+011.00E+021.25E+02

Harmonic

Un

its

averages

upper spec limit

lower spec limit

avg + 3 sigma

avg - 3 sigma

MO

-200-150-100

-500

50100150200250

Harmonic

Un

its

averages

upper spec limit

lower spec limit

avg + 3 sigma

avg - 3 sigma

MO

-200

-150

-100

-50

0

50

100

150

200

Harmonic

Un

its

averages

upper spec limit

lower spec limit

avg + 3 sigma

avg - 3 sigma

MO

-50-40-30-20-10

01020304050

Harmonic

Un

its

averages

upper spec limit

lower spec limit

avg + 3 sigma

avg - 3 sigma

MQT tuning quadrupole

Systematic (assembly)Systematic (module)

1σ (uncertainty) 3σ (random)limit

(module)55 A 550 A

1 A

b1 10-4 B2 0 0 0 - - 60

B2 Tm 0.072 0.67 0.0013 - - ±1%

b3 10-4 B2 0 0 0 7.3 21.9 22

b4 10-4 B2 0 0 0 5.2 15.6 16

b5 10-4 B2 0 0 0 1.6 4.8 5

b6 10-4 B2 -0.03 -2 -8.7 1.0 3.0 13

b7 10-4 B2 0 0 0 0.51 1.5 1.5

b8 10-4 B2 0 0 0 0.44 1.3 1.5

b9 10-4 B2 0 0 0 0.22 0.66 0.7

b10 10-4 B2 -14.7 -15.5 -14.6 0.07 0.21 15

b11 10-4 B2 0 0 0 0.02 0.06 0.1

b12 10-4 B2 0 0 0 0.01 0.03 0.1

b13 10-4 B2 0 0 0 - - 0.1

b14 10-4 B2 0.32 0.34 0.32 - - 0.5

a1 10-4 B2 0 0 0 - - 60

a2 10-4 B2 0 0 0 - - 30

a3 10-4 B2 0 0 0 7.5 22.5 22

a4 10-4 B2 0 0 0 2.7 8.1 16

a5 10-4 B2 0 0 0 1.6 4.8 5

a6 10-4 B2 0 0 0 0.32 0.96 13

a7 10-4 B2 0 0 0 0.51 1.5 1.5

a8 10-4 B2 0 0 0 0.36 1.07 1.5

a9 10-4 B2 0 0 0 0.22 0.66 0.7

a10 10-4 B2 0 0 0 0.09 0.27 15

a11 10-4 B2 0 0 0 0.02 0.06 0.1

a12 10-4 B2 0 0 0 0 0.01 0.1

a13 10-4 B2 0 0 0 - - 0.1

a14 10-4 B2 0 0 0 - - 0.5