Linac

The linac injects the electron beam to the synchrotron as a pre-injector.

1. Fundamental components
Injector Electron gun, Sub-harmonic-buncher, Pre-buncher, Buncher
Klystron & Modulator 50MW × 2, SLED × 1
Accelerator 2m × 6
Magnet Quadrupole magnet, Bending magnet, Steering magnet, Solenoid magnet
Vacuum Ion pump, Gate valve, vacuum chamber, etc.
Monitor Current monitor, Beam position monitor, Profile monitor,
Energy analyzer, Emittance monitor, etc.
Control system
Timing system

2. Fundamental parameters
Beam energy 200 MeV
RF frequency 2856 MHz
Repetition ratio 50 Hz (max)
Normalized emittance (90%) 50 mm mrad
Emittance (90%)
130 nm rad (@200MeV)
Operation mode short Semi-long
Bunch length 1 ns (10ps) * 15～30 ns
Peak current (max) 2 A 400 mA
Energy spread (FWHM) 0.5% 0.5%
Jitter 50ps 50ps
* 1 ns electron beam is produced by an electron gun and bunched within 10 ps by a bunching section including a SHB .

3. Accelerating structure and klystron