84 



Los Alamos, NM. , U.S.A. 



CLINTON P. ANDERSON (LOS ALAMOS) MESON PHYSICS FACILITY (LAMPF) 

 Los Alamos National Laboratory (LANL) 

 U.S. Dept. of Energy 



"Big Science" Descriptor ; Nuclear physics 



Description of Facility/Instrument ; This facility is a high-current, 

 800 million electron volt (MeV) proton linear accelerator about 

 one-half mile in length. It provides up to 12 simultaneously 

 operating secondary beams including neutrons, plons, muons, and 

 neutrons. The research emphasis is on nulcear structure, mecha- 

 nisms by which plons and protons react with nuclei, basic particle 

 interactions, and the fundamental weak interaction. LAMPF con- 

 currently provides proton beams for weapons nulcear research. 



Date of Construction ; 1967-1972 



Construction Cost ; 1984 $$ : $250 million (estimated replacement 

 cost) 



Present International Cooperation 



Nationality(s) of Ownership : U.S. 



Nationality(s) of Operational Funding ; U.S. 



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



Nationality(s) of Researchers : U.S., Great Britain, Canada, 



France, the Federal Republic of Germany, Japan, Australia, 

 Bangladesh, the People's Republic of China, Columbia, Cyprus, 

 Egyptj El Salvador, India, Iran, Iraq, Ireland, Israel, 

 Italy, Lebanon, Malaysia, Mexico, the Netherlands, Norway, 

 South Korea, Sweden, Switzerland, and Taiwan. 



Because nulcear 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. 



In 1983-84, a dilution refrigerator and frozen spin 

 polarized target system for both protons and deuterons has 

 been provided by the Los Alamos National Laboratory for High 

 Energy Physics (KEK), Japan for a joint research program on 

 proton-proton and dueteron-deuteron spin dependent scattering. 



