Initial experimental studies of electron accumulation in a heavy-ion beam
Initial experimental studies of electron accumulation in a heavy-ion beam
Accelerators for heavy-ion inertial fusion energy (HIF) have an economic incentive to fit beam tubes tightly to beams, putting them at risk from electron clouds produced by emission of electrons and gas from walls. Theory and PIC simulations suggest that the electrons will be radially trapped in the /spl ges/1 kV ion-beam potential. We are beginning studies on the High-Current Experiment (HCX) with unique capabilities to characterize electron production and trapping, the effects on ion beams, and mitigation techniques. We are measuring the flux of electrons and gas evolved from a target, whose angle to the beam can be varied between 78/spl deg/ and 88/spl deg/ from normal incidence. Quadrupole magnets are operating with a variety of internal charged particle diagnostics to measure the beam halo loss, net charge, electron ionization rate, and gas density.
- University of North Texas United States
- Lawrence Berkeley National Laboratory United States
- RIKEN Japan
- European Organization for Nuclear Research Switzerland
- Lawrence Berkeley National Laboratory United States
43 Particle Accelerators, Ionization, Mitigation, Consumption, Economics, Electrons, Energy conservation, 43, Environmental Energy Technologies, Ion Beams, Clouds, Charged Particles, Energy conservation, consumption, and utilization, Heavy Ions, consumption, 32 Energy Conservation, 70, Production, Thermonuclear Reactors, Trapping, And Utilization, Magnets, Quadrupoles, and utilization, Accelerators
43 Particle Accelerators, Ionization, Mitigation, Consumption, Economics, Electrons, Energy conservation, 43, Environmental Energy Technologies, Ion Beams, Clouds, Charged Particles, Energy conservation, consumption, and utilization, Heavy Ions, consumption, 32 Energy Conservation, 70, Production, Thermonuclear Reactors, Trapping, And Utilization, Magnets, Quadrupoles, and utilization, Accelerators
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).8 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Average influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Top 10% impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Top 10%
Citations provided by BIP!Popularity provided by BIP!