B. Langenbeck et al., THE MAGNETS AND POWER-SUPPLIES OF THE GSI BEAM SCANNING SYSTEM FOR HEAVY-ION CANCER-THERAPY, IEEE transactions on magnetics, 32(4), 1996, pp. 2651-2654
The magnets and power supplies of a raster scanning system for a parti
cle therapy facility have been designed and carefully measured after d
elivery. Well known and proven techniques have been used in constructi
on and production of the laminated window frame magnets and the pulsed
power supplies to avoid failures of the system and to assure absolute
security of patients during treatment. The scanning interval in both
transverse directions is 20 cm. The vertical deflection includes an of
fset of 20 cm between the undeflected beam and the scanning area to ha
ve space for last beam diagnostic purposes just before treatment begin
ning. The scanning depth. is established by varying the energy of the
carbon, oxygen, or neon ions to energies up to 550A MeV.