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Appendixes .
A The World's High-Energy Accelerators This Appendix lists high-energy accelerators that are now in opera- tion or that have operated within the past few years. High energy is defined for fixed-target accelerators as a primary-beam energy greater than 5 GeV and for colliders as a total energy greater than 3 GeV. 203
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APPENDIX A 205 TABLE A.2 Fixed-Target Electron Accelerators Maximum Year Present Use Energy Construction or Year Years Name Type (GeV) Location Completed Closed Used 6-GeV Electron Circular 6 Harvard/ 1962 Closed 1973 11 Synchrotron MIT, U.S.A. 6-GeV Electron Circular 7 DESY. 1964 In use as >20 Synchrotron Germany injector for storage rings 19-GeV Electron Circular 12 Cornell. 1967 In use as Synchrotron U.S.A. injector for CESR storage ring 2-Mile Linear Linear 33 being SLAC. Accelerator raised U.S.A. to 50 1966 In use for elementary- particle physics and as mJector for storage rings >18 TABLE A.3 Hadron-Hadron Storage Ring Colliders . Maximum Year Present Use Energy Construction or Year Years Name Type (GeV) Location Completed Closed Used ISR Proton 62 CERN. 1971 Closed in 12 -proton Switzerland 1983 SppS Proton 600 CERN. 1982 In use for >2 collider ~ntiproton Switzerland elementary- particle physics
206 APPENDIX A TABLE A.4 Electron-Positron Storage Ring Colliders Name Type SPEAR Two 8 interaction regions Maximum Energy (GeV) Location SLAC, 1 97 U.S.A. Year Construction Present Use or Years Completed Year Closed Used . DORIS Two 10 DESY. 1973 interaction Germany regions VEPP-4 Two 14 interaction regions CESR Two 16 interaction regions Novosibirsk. 1979 U SSR Cornell. 1 979 U.S.A. In use for >12 e le me ntary- particle physics and as synchrotron light source . In use for >11 elementary- particle physics as synchrotron light source, and as injector In use for elementary- particle physics In use for elementary- panicle physics and as synchrotron light source >5 PEP Six 36 SLAC. 1980 In use for >4 interaction U.S.A. elementary- regions particle physics PETRA Four 46 DESY. 1978 In use for >6 interaction Germany elementary- regions panicle physics -
