80 



Berkeley, CA. , U.S.A. 



BEVALAC 



Lawrence Berkeley Laboratory (LBL) 



U.S. Dept. of Energy 



"Big Science" Descriptor ; Nuclear physics 



Description of Facility/Instrument : The Bevalac Is a combined accel- 

 erator system, consisting of the SuperHILAC and the Bevatron. 

 The SuperHILAC Is a linear accelerator capable of accelerating 

 all elements to energies of 8.5 million electron volts per 

 nucleon (MeV/AMU). It Is connected by a transfer line to the 

 Bevatron, which can further accelerate Ions to energies up 

 to 4.9 GeV for protons, 2.1 GeV/AMU for carbon, or other ions 

 with energies up to 960 MeV/AMU for uranium. Bevalac research 

 includes: peripheral fragmentation reactions and studies of in- 

 ternal momentum; nuclear reactions induced by beams of radio- 

 active nuclei; central collisions that create extremely hot, 

 dense nuclear matter complexes; production mechanisms of 

 plons, kaons, hyperons, and antipartlcles in nuclear matter; 

 searches for new forms of matter such as plon condensates and 

 nuclear isomers; searches for evidence of quark-gluon plasma; 

 and searches for free quarks. 



Date of Construction : 1950-54, 1954-57, and 1973-74 



Construction Cost : 1984 $$ : $135 million (estimated replacement 

 cost) 



Present International Cooperation 



Natlonallty(s) of Ownership : U.S. 



NationalityCs) of Operational Funding : U.S. 



Natlonality(8) of Management Staff : U.S. 



Natlonallty(s) of Researchers : U.S., Canada, France, Japan, the 

 Federal Republic of Germany, the People's Republic of China, 

 Egypt, India, Ireland, Israel, Italy, Mexico, South Africa, 

 Sweden, and Switzerland 



Because nuclear physics Is an international activity, 

 with knowledge freely shared among its practitioners, this 

 laboratory has extensive interactions with people and in- 

 stitutions 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 

 scientists use foreign facilities. A ten-year-old coopera- 

 tion with GSI, Darmstadt, the Federal Republic of Germany, 

 has included development of the Plastic Ball detector. 



