Parameters

ESRF-EBS

Lattice

Energy [GeV]

6

 

Circumference [m]

843.977

 

Number of cells

32

 

Natural horizontal emittance [pm.rad]

133

 

Operational emittance (H/V) [pm]

110/5

 

Energy loss per turn [MeV]

2.5

 

Energy loss from IDs [MeV]

0.5

 

Horizontal tune

76.21

 

Vertical tune

27.34

 

Longitudinal tune

0.00366

 

Horizontal damping time [ms]

8.76

 

Vertical damping time [ms]

13.4

 

Longitudinal damping time [ms]

9.13

 

Horizontal natural chromaticity

-109

 

Vertical natural chromaticity

-82

 

Momentum compaction

8.5E-05

 

Energy spread

9.3E-4

 

Beam current (multibunch) [mA]

200

 

Horizontal emittance growth at 200mA [%]

2.5

 

Vertical emittance [pm.rad]

5

 

Bunch length [ps]

13

 

Lifetime [h]

18

 

 

 

RF

RF Voltage [MV]

6.5

 

RF frequency [MHz]

352.372

 

Harmonic number

992

 

Synchrotron frequency [kHz]

1.30

 

Number of five-cell cavities

0

 

Number of mono-cell cavities

14

 

Total RF power (incl. 10% transmission loss and energy loss from IDs) [kW]

1012

 

RF power per cavity [kW]

72

 

Copper loss per cavity [kW]

23

 

Cavity coupling

2.8

ID source

 

 

Undulator (U18)

Period [mm]

18

 

Length [m]

2

 

Kmax

1.68

 

Minimum gap (IVU) [mm]

6

 

Minimum gap (U) [mm]

11

 

 

 

10keV

Horizontal source size [µm]

30.4

 

Vertical source size [µm]

5.11

 

Horizontal beam divergence [µrad]

7.38

 

Vertical source divergence [µrad]

6.1

 

Brilliance [phot/s/0.1%/mm^2/mrad^2]

6.6E+21

 

On axis angular flux [ phot/s/0.1%/mrad^2]

             1.82E+19

 

 

 

30keV
(Harmonic 3)

Horizontal source size [µm]

30.3

 

Vertical source size [µm]

4.2

 

Horizontal beam divergence [µrad]

6.3

 

Vertical source divergence [µrad]

4.7

 

Brilliance [phot/s/0.1%/mm^2/mrad^2]

3.56E+21

 

On axis angular flux [ phot/s/0.1%/mrad^2]

6.00E+18

 

 

 

50keV
(Harmonic 5)

Horizontal source size [µm]

30.3

 

Vertical source size [µm]

4

 

Horizontal beam divergence [µrad]

6.1

 

Vertical source divergence [µrad]

4.5

 

Brilliance [phot/s/0.1%/mm^2/mrad^2]

1.37E+21

 

On axis angular flux [ phot/s/0.1%/mrad^2]

6.00E+18

 

On axis angular flux [ phot/s/0.1%/mrad^2]

1.96E+18

 

 

 

BM source

Magnetic field [T]

0.47 to 1.1

 

Horizontal beta at BM [m]

1.88

 

Horizontal dispersion [mm]

18.48

 

Vertical beta at BM [m]

2.52

 

Horizontal beam size at BM [µm]

23.4

 

Vertical beam size at BM [µm]

3.55

 

Horizontal beam divergence at BM [µrad]

24.2

 

Vertical beam divergence at BM [µrad]

3.06

 

 

 

Modes

 

 

16-bunch

Beam current [mA]

90

 

Bunch intensity [mA]

5.62

 

Horizontal emittance growth at 5.62mA [%]

15

 

Vertical emittance [pm.rad]

5

 

Bunch length [ps]

31

 

Lifetime [h]

1.75

 

Energy spread

0.0012

 

 

 

4-bunch

Beam current [mA]

40

 

Bunch intensity [mA]

10

 

Horizontal emittance growth at 10mA [%]

20

 

Vertical emittance [pm.rad]

20

 

Bunch length [ps]

37

 

Lifetime [h]

2.4

 

Energy spread

0.0015