Author: Bhandari, R.K.
Paper Title Page
WEPS070 Commissioning Status of Kolkata Superconducting Cyclotron 2664
  • C. Mallik, R.K. Bhandari
    DAE/VECC, Calcutta, India
  After completing the construction of the K~500 superconducting cyclotron at Kolkata, the internal beam acceleration was accomplished in August 2009 and several tests were conducted to confirm the acceleration. Earlier the superconducting magnet using Nb-Ti superconductor with 300 litre liquid helium cryostat and 80 tonne iron was commissioned and field mapped. The radiofrequency system spanning 9-27 MHz and with three independent resonators were integrated into the machine. Some difficulties were experienced with achieving the voltage related to ceramic failures. Finally, ~50 kV on the dees have been achieved with reasonable phase stability between the three dees. The cyclotron uses a 14 GHz external ECR ion source and the beam is injected through 28 metre long injection line. Till date several beams like neon, argon, nitrogen, oxygen etc. have been accelerated mostly in analogous mode and at around 14 MHz frequency and ~32 kG field. Valuable experience has been obtained with various systems. The paper would describe the experience with different subsystems and beam acceleration experience. Presently, beam extraction is being tried and will be achieved shortly.  
THPS016 Rare Ion Beam (RIB) Facility at VECC : Present and Future 3454
  • R.K. Bhandari, A. Bandyopadhyay, A. Chakrabarti, V. Naik
    DAE/VECC, Calcutta, India
  Funding: This project if funded by Department of Atomic Energy, Government of India.
An ISOL –post accelerator type Rare Ion Beam (RIB) Facility is being developed at our centre. The RIBs will be produced by using light ion induced fusion evaporation and by using photo-fission reaction, using a 50 MeV 2mA SC electron linac that is being developed in collaboration with TRIUMF, Canada. The primary reaction products will be ionized using two-ion source charge breeder. The possibility of feeding the primary reaction products directly to an ECR ion source using multi-stage skimmer and gas jet transport technique is being explored at present. An extended rod type heavy ion RFQ, one buncher and three IH cavities have been successfully accelerated stable beams up to about 415 keV/u. Three more IH cavities will increase the energy to about 1.3 MeV/u and SC QWRs will augment the energy thereafter. In the next stage of development, an Advanced National Facility for Unstable & Rare Isotope Beams (ANURIB) has been envisaged. This green field project will deliver stable & RIBs from 1.5 keV/u to 100 MeV/u. This will have both ISOL type and PFS type facility. Neutron & positron beams based facilities will also be built around the e- linac.