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Bhagwat, P. V.

Paper Title Page
THPP034 Design Study of Alternate Injector at Pelletron Accelerator Facility 3443
 
  • N. Mehrotra, P. V. Bhagwat, R. K. Choudhury, A. K. Gupta, S. Kailas, S. Krishnagopal
    BARC, Mumbai
  • R. G. Pillay
    TIFR, Mumbai
 
  An alternate injector system is contrived under the AIDNP project in the Xth plan to utilize the 150MHz supercond. LINAC to its full capability. This injection system consists of ECR ion source, RFQ Linac and supercond. QWR cavities. This configuration can deliver high current and wider mass range(1/7≤ q/m≤1/2) beam into the S-LINAC with the required velocity acceptance which otherwise is not possible from pelletron. The design study from ion source to exit of RFQ is presented in this paper. Prior to injection to s-linac,the beam needs to be accelerated to an equivalent of 12-14MV/q. Beam from a high frequency(18GHz) ECRsource producing Au30+,U34+ and pre accelerated to 10keV/u will be injected into heavy ion RFQ. The RFQ operating at f/2 i.e.75MHz of the linac frequency, will accept beams with β=0.46% and accelerate upto β=3.5%.These beams would then go through two sets of superconductiong cavities with β=5.0% and β=7.0% respectively. This acceleration is expected to bring all ion beams from carbon to uranium, in the velocity range β=8%-10% which is suitable for linac. After further acceleration in Linac~12 MeV/u light ions and 7 MeV/u uranium beams would be available.