ALBA Synchrotron

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Superconducting Wiggler SCW30

Superconducting wiggler with short period length manufactured by Budker Institute of Nuclear Physics (Novosibirsk, Russia). 

The actual K-value can be set adjusting the current in the superconducting coils. At maximum magnetic field of 2.15 Tesla,  K = 6.08 and critical energy Ec = 12.5 keV.

The K-value can principally be lowered by reducing the magnetic field, hence reducing beam size and divergence, or reducing maximum power. The SCW is however presently permanently operated at its maximul magnetic field value.

SCW_MSPDOpen.jpeg

SCW_MSPDClosed.jpeg

SCW_MSPDOpen.jpeg

Parameters

Material

Superconducting coils made of NbTi wires

Magnetic gap

12.6 mm

Period length

30.16 mm 

Number of periods 

58.5

K max / B max

6.08 / 2.15 Tesla

Photon flux (Iring=250 mA) through FE fix aperture
@15 keV
@30keV

1.10·1015(ph/s/0.1% bandwith)
4.52·1014 (ph/s/0.1% bandwith)

Photon source size (FWHM) 
@15 keV
@30keV

0.65 x 0.11 mm2 (HxV)
0.59 x 0.08 mm2 (HxV)

Photon source divergence (FWHM)
@15keV
@30keV

1.15 x 0.23 mrad2 (HxV)
1.00 x 0.16 mrad2 (HxV)