Status report on electron cyclotron resonance ion source operation at the Flerov Laboratory of Nuclear Reactions (Joint Institute for Nuclear Research) cyclotrons

Two electron cyclotron resonance (ECR) sources, DECRIS-14-2 and ECR4M, are presently in permanent operation at the Flerov Laboratory of Nuclear Reacti ons cyclotrons, U400M and U400, respectively. A wide range of ions of gases from He up to Xe was delivered by the sources and accelerated in the cyclo trons. Major efforts were made in the production of high current stable ion beams of solids with relatively low melting points in mass ranges from Li up to Bi. Both the evaporator and the MIVOC technique were used. Among the solids a beam as exotic as Ca-48 was produced at the U400 cyclotron with hi gh efficiency. The main results on production of ion beams of gases and sol ids are reported. For further development of ECR ion sources a test bench w as designed and built. The test bench is equipped with the new DECRIS-3 ion source. The parameters of the test bench and ECR source are described. (C) 2000 American Institute of Physics. [S0034-6748(00)58702-4].