
The Los Alamos Meson Physics Facility (LAMPF) operated with simultaneous H+ and H- beams until June 1980, when a method of providing a variable energy H- beam as well as a full-energy H+ beam was brought into use. The scheme is based on time sharing between H+ and H- beam pulses. It is now possible to provide H- beams with energy as low as 300 MeV along with the usual 800-MeV H+ beams. The method requires a reduction in duty factor of the H+ and H- beams; however, the total duty factor has been increased to 9% which compensates in large measure for the reduction due to dual-energy operation. The necessary modifications to the beam switchyard and accelerator timing systems are described.
43 Particle Accelerators, Pulse Techniques, Linear Accelerators, Meson Factories, Beam Dynamics, Beams, Beam Transport, Nucleon Beams, Energy Range, Ion Beams, Field Calculations, Mev Range 100-1000, Lampf Linac, Hydrogen 1 Minus Beams, Particle Beams 430200* -- Particle Accelerators-- Beam Dynamics, Proton Beams, Mev Range, & Ion Optics, Accelerators
43 Particle Accelerators, Pulse Techniques, Linear Accelerators, Meson Factories, Beam Dynamics, Beams, Beam Transport, Nucleon Beams, Energy Range, Ion Beams, Field Calculations, Mev Range 100-1000, Lampf Linac, Hydrogen 1 Minus Beams, Particle Beams 430200* -- Particle Accelerators-- Beam Dynamics, Proton Beams, Mev Range, & Ion Optics, Accelerators
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