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 ²/3 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 |