Results with the electron cyclotron resonance charge breeder for the f fission source project (Californium Rare Ion Breeder Upgrade) at Argonne Tandem Linac Accelerator System a

摘要

The construction of the Californium Rare Ion Breeder Upgrade, a new radioactive beam facility for the Argonne Tandem Linac Accelerator System (ATLAS), is nearing completion. The facility will use fission fragments from a 1 Ci f source; thermalized and collected into a low-energy particle beam by a helium gas catcher. In order to reaccelerate these beams, an existing ATLAS electron cyclotron resonance (ECR) ion source was redesigned to function as an ECR charge breeder. Thus far, the charge breeder has been tested with stable beams of rubidium and cesium achieving charge breeding efficiencies of 9.7% into b17+ and 2.9% into s20+. © 2010 American Institute of Physics Article Outline INTRODUCTION CHARGE BREEDER STABLE BEAM SOURCES CHARGE BREEDING RESULTS Cesium results Two frequency heating with cesium Rubidium results Two frequency heating with rubidium Acceleration of charge bred rubidium FUTURE PLANS Emittance measurement system Improved vacuum Transfer tube position