Compact Photon Source (CPS) Design

Chong Shik Park

Indiana University and IUCF

Layout of CPS

• Total circumference: 17.6 m• Electron beam energy: 25 MeV• 4 Bending Dipoles• 2 Wigglers with gradient• Momentum Compaction Factor can be tunable by

changing the gradient and magnetic field of wiggler dipoles

Length of the Bending Dipoles I

Length of the Bending Dipoles II

Edge Angle of the Bending Dipole I

Edge Angle of the Bending Dipole II

Gradient of the Wiggler Dipole

• Use the wiggler dipoles with gradient to tune the damping parameters

• Change the B1/B0 of Bz

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Bz

Changing Gradient

Magnetic Field Changing

Beam Parameters

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LBD = 0.75 m

Edge Angle = 24°

B1

B0

=1.25

BWD = 0.1 T

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α c = −0.02986

Qx =1.7577, Qz =1.3965

Jx =1.1192, Jz =1.0, JE =1.8808

τ x = 59.128sec,

τ z = 66.178sec,

τ E = 35.186sec