Chromaticity(4 p x )

 

ATF2

NLC/GLC

Original

xy correction

xx correction

X

SD

11.432

-4884.058

3853.188

11704.823

QF

-2508.024

-1868.472

-2505.779

-5966.352

SF

-2.003

-891.897

-690.983

-3886.095

QD

351.254

261.687

350.943

1320.736

Total

49.893

-151.148

-43.261

-31.063

Y

SD

-13.732

-7637.635

-4076.502

-18419.319

QF

3471.932

3367.207

3055.079

12167.143

SF

60.701

35193.650

18446.402

51772.3

QD

-29386.183

-28500.133

-25858.152

-56556.217

Total

166.022

168.529

142.583

-2.831

 

 

xy correction

      Coupling=1%, DP=0

      Normal Emittance

      Gaussian beam

      Normalized with Sqrt[be]

 

 

 

Vibration Tolerance

 

ATF2

NLC/GLC

DRIFT

DL

100mm

76mm

BEND

DK0/K0

1e-5

8.7e-5 ( 1.25e-4 )

Dq

0.3mrad

 

QUAD

DK1/K1

1e-4

1e-4 ( 2e-5 )

Dx

10mm

2 mm ( 0.07 mm )

Dy

10mm

0.2 mm ( 0.002 mm )

Dq

0.1mrad

0.1mrad ( 6 mm )

SEXT

DK2/K2

5e-3

7e-3

Dx

10mm

2 mm ( 30 mm )

Dy

10mm

0.6 mm ( 10 mm )

Dq

1mrad

0.9 mrad

 

The above values are determined as the beam sizes grow up to;

        ( sx, sy ) = (4 mm, 40nm ) for ATF2

               = ( 300 nm, 4nm ) for NLC/GLC

Exception: BEND for NLC/GLC

      ( sx, sy ) = ( 230 nm, 3nm )

The values in () are the ones that make the orbit to displace by 1 s .