85 



In 1985-86, a closed-loop, temperature-controlled, 

 helium-cooled system for proton radiation effects studies was 

 provided by KFA, Julich, West Germany, for a joint research 

 program. 



Pot ential for Future International Cooperation ; Beam time at this 



facility is available without charge for the best research 

 propHJsals worldwide. 



Oak Ridge, TN., U.S.A. 



HOLIFIELD HEAVY ION RESEARCH FACILITY 

 Oak Ridge National Laboratory (ORNL) 

 U.S. Dept. of Energy 



"Big Science" Descriptor ; Nuclear physics 



Description of Facility/Instrument ; The facility includes a 25 mil- 

 lion volt electrostatic tandem accelerator and the Oak Ridge 

 Isochronous Cyclotron. Heavy ion projectiles are used to study 

 nuclear structure and nuclear behavior under a variety of extreme 

 conditions such as high excitation energy, large angular momentum, 

 and mass far from the valley of stability. 



Date of Construction : Cyclotron 1959-63, Tandem 1974-81 



Construction Cost : 1984 $$ ; $54 million (estimated replacement 

 cost) 



Present International Cooperation 



NatlonalityCs) of Ownership ; U.S. 



Nationallty(s) of Operational Funding : U.S. 



Nationality(s) of Management Staff ; U.S. 



Natlonallty(s) of Researchers : U.S., France, the United Kingdom, 

 Israel, Denmark, Sweden, the Federal Republic of Germany, 

 Taiwan, Iran, Poland, Mexico, Brazil, Argentina, Malaysia, 

 the Netherlands, Sri Lanka, Finland, the People's Republic 

 of China, Algeria, India, Greece, and Australia 



Because nuclear physics is an international activity, 

 with knowledge freely shared among its practitioners, this 

 laboratory has extensive Interactions with people and insti- 

 tutions in foreign countries. 



More than 95 percent of researchers working at DOE 

 nuclear physics accelerators are from U.S. institutions. On 

 approximately equal and reciprocal bases, U.S. nuclear sci- 

 entists use foreign facilities. 



Potential for Future International Cooperation : Beam time at this 



facility is available without charge for the best research pro- 

 posals worldwide. 



