First online production of radioactive ion beams at VECC

Radioactive ion beams (RIB) have been recently accelerated for the first time at the VECC-RIB facility. Beams of 14O (71 s), 42K (12.4 h), 43K (22 h) and 41Ar (1.8 h) have been produced by bombarding 1 atm nitrogen and argon gas targets with 1 micro-ampere proton and alpha particle beams from the K130 cyclotron. Radioactive atoms were transported 15 m away to the ECR ion-source using a gas-jet transport system. Typical measured intensity of RIB at the separator focal plane is few times 103 pps. About 3300 pps of 1.4 MeV 14O was measured after acceleration through a 3.4 m long RFQ linac. The details of the gas-jet coupled ECR and RIB production experiments are presented.