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The High Current Injector project at Inter University Accelerator Centre uses a Radio Frequency Quadrupole (RFQ) and Drift Tube Linac (DTL) combination to accelerate heavy ions, A/q ≤ 6, from an ECR ion source to inject them to the existing superconducting LINAC. The DTL has been designed to accelerate ions from 180 keV/u to 1.8 MeV/u, using six IH type RF resonators operating at 97 MHz. The required output energy of the DTL is decided by the minimum input velocity of nearly 6% of velocity of light ( i.e.beta = 0.06) required for the existing superconducting LINAC. IH type resonators are the preferred choice for multiple gap DTL applications due to their high shunt impedance values. The frequency of operation is chosen as 97 MHz after comparing with the 48.5 MHz option. The later offers a larger acceptance but the size of the resonator becomes much larger at this frequency. The beam dynamics and generation of the drift tube geometry is done using the LANA code. The electrical design of the first resonator tank has been done using CST Microwave Studio. Frequency and electric field profile measurements have been done on a full size prototype resonator.
