Injector

LINAC
Accelerated particles Electrons, unpolarised or polarised (max. polarisation 85 %)
Energy 26 MeV

Booster Synchrotron

Cycle time 20 ms (grid-synchronized)
Maximum energy 1.6 GeV
Magnet system

AG, combined function, FODO cell

12 magnets, eff. field length 4 m

max. current 50 nA
Circumference 69.9 m
Stretcher Ring
Magnet system AG, separated function, FODO cell
Circumference 164.4 m
Dipole magnets 24 magnets, length 2.84 m, max. field 1.07 T
Quadrupole magnets 2 families (focussing, defocussing), each family 16 magnets, length 0.45 m
Maximum energy max. 3.5 GeV, max. ramping speed 6 GeV/s
Cycle time variabel (typ. values: booster mode 5...12 s, storage mode 30...120 min)
Maximum current 200 mA in storage mode, 35 mA in booster mode
Extraktion method slow resonance extraction at horizontal 4 ²/betatron resonance, control of resonance strength by sextupoles, distance to resonance controlled by ironless quadrupoles
Vacuum system vacuum chamber made of stainless steel, typical aperture 100 mm x 50 mm, avarage pressure ~ 5 . 10-9 mbar (without beam), 35 ion getter pumpd, 16 turbomolecular pumps
 Radio frequency system of stretcher ring
Frequency 499.67 MHz
Harmonic number 274
Resonators 2 resonators of type DESY PETRA, length 1.5 m each (5 resonator cells)
Max. RF power 250 kW

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