A new radioactive beam facility for ATLAS,the Californium Rare Ion Breeder Upgrade (CARIBU), is under construction.The facility will use fission fragments from a 1 Ci ^(252)Cf source;thermalized and collected into a l...A new radioactive beam facility for ATLAS,the Californium Rare Ion Breeder Upgrade (CARIBU), is under construction.The facility will use fission fragments from a 1 Ci ^(252)Cf source;thermalized and collected into a low-energy beam by a helium gas catcher.In order to reaccelerate these beams,the existing ATLAS ECR-I ion source is being redesigned to function as a charge breeder source.The design and features of this charge breeder configuration is discussed and the project status described.展开更多
Development work with solid materials at the Argonne National Laboratory ECR ion sources has been focused on two areas-introduction of materials with low vapour pressures,and increasing the beam intensities of heavy b...Development work with solid materials at the Argonne National Laboratory ECR ion sources has been focused on two areas-introduction of materials with low vapour pressures,and increasing the beam intensities of heavy beams(i.e.-lead and uranium).An induction oven,with a demonstrated operating temperature extending to 2000℃,has been utilized to produce a Ti-50 beam with an intensity of 5.5eμA (12+).In addition,a refinement of the sputter technique has been employed which has resulted in a 42% improvement in lead beam intensities.Details of the induction oven as well as the refined sputter technique will be presented.展开更多
基金Supported by the U.S.Department of Energy,Office of Nuclear Physics,under contract W-31-109-ENG-38
文摘A new radioactive beam facility for ATLAS,the Californium Rare Ion Breeder Upgrade (CARIBU), is under construction.The facility will use fission fragments from a 1 Ci ^(252)Cf source;thermalized and collected into a low-energy beam by a helium gas catcher.In order to reaccelerate these beams,the existing ATLAS ECR-I ion source is being redesigned to function as a charge breeder source.The design and features of this charge breeder configuration is discussed and the project status described.
基金Supported by the U.S.Department of Energy,Office of Nuclear Physics,contract W-31-109-ENG-38
文摘Development work with solid materials at the Argonne National Laboratory ECR ion sources has been focused on two areas-introduction of materials with low vapour pressures,and increasing the beam intensities of heavy beams(i.e.-lead and uranium).An induction oven,with a demonstrated operating temperature extending to 2000℃,has been utilized to produce a Ti-50 beam with an intensity of 5.5eμA (12+).In addition,a refinement of the sputter technique has been employed which has resulted in a 42% improvement in lead beam intensities.Details of the induction oven as well as the refined sputter technique will be presented.
