摘要
The design and low power RF measurement of the radio frequency quadruple(RFQ)for the front end of China Material Irradiation Facility(CMIF),which is an accelerator based neutron irradiation facility for fusion reactor material qualification,have been completed.The RFQ,which operated under CW mode,is specified to accelerate 10 mA deuteron beam from the energy of 20 keV/u to 1.5 MeV/u.To reduce the possibility of beam loss in supper conducting section,the output longitudinal emittance need be optimized.The idea of“Kick-drift”is adopted in beam dynamic design.
